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Add QSV hardware encoding support to FFmpeg and upgrade to v6.1

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This commit is contained in:
linbo 2026-07-31 10:11:09 +08:00
parent f443a7ce53
commit dcb95e3ccb
530 changed files with 308786 additions and 127 deletions
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23
CMakeLists.txt
View File

@ -18,9 +18,6 @@ set(CMAKE_INSTALL_PREFIX "${CMAKE_SOURCE_DIR}/output" CACHE PATH "" FORCE)
set(CMAKE_BUILD_RPATH "\$ORIGIN:\$ORIGIN/../lib")
set(CMAKE_INSTALL_RPATH "\$ORIGIN:\$ORIGIN/../lib")
# Use transitive RPATH so CLion can run build-tree test executables without
# manually setting LD_LIBRARY_PATH for indirect third-party dependencies.
add_link_options(-Wl,--disable-new-dtags)
set(CMAKE_BUILD_WITH_INSTALL_RPATH OFF)
set(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)
@ -31,6 +28,26 @@ list(APPEND CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/cmake")
include(FindExternalLib)
set(ARCH "x86")
setup_external_libs(${ARCH})
# Intel oneVPL / VA-API runtime. The shared libraries in lib/ are installed
# by setup_external_libs(); the VA-API driver plugin directory is installed
# separately because it must retain its dri layout.
set(INTEL_MEDIA_STACK_ROOT
"${PROJECT_SOURCE_DIR}/dependency/${ARCH}/third_party/intel-media-stack/vpl-2.17"
)
set(INTEL_MEDIA_DRIVER_DIR "${INTEL_MEDIA_STACK_ROOT}/lib/dri")
set(INTEL_IHD_DRIVER "${INTEL_MEDIA_DRIVER_DIR}/iHD_drv_video.so")
if(NOT EXISTS "${INTEL_IHD_DRIVER}")
message(FATAL_ERROR "Intel iHD VA-API driver not found: ${INTEL_IHD_DRIVER}")
endif()
message(STATUS "Intel media stack: ${INTEL_MEDIA_STACK_ROOT}")
install(
DIRECTORY "${INTEL_MEDIA_DRIVER_DIR}/"
DESTINATION lib/dri
)
# 在调用 setup_external_libs 之后
message(STATUS "CMAKE_EXE_LINKER_FLAGS: ${CMAKE_EXE_LINKER_FLAGS}")
message(STATUS "CMAKE_SHARED_LINKER_FLAGS: ${CMAKE_SHARED_LINKER_FLAGS}")

6
cmvr-es/common/media/ffmpeg/camera_capture.cpp
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@ -62,14 +62,14 @@ int CameraCapture::initialize(const Config& config) {
}
int CameraCapture::init_device() {
AVInputFormat* input_fmt = nullptr;
// AVInputFormat* input_fmt = nullptr;
std::string device_path;
#ifdef _WIN32
input_fmt = av_find_input_format("dshow");
auto input_fmt = av_find_input_format("dshow");
device_path = "video=" + config_.device_name;
#else
input_fmt = av_find_input_format("v4l2");
auto input_fmt = av_find_input_format("v4l2");
device_path = config_.device_name;
#endif

146
cmvr-es/config/devices/arm/arm.pb.txt
View File

@ -149,4 +149,150 @@ arm {
}
}
}
robot_arms {
id: "eyou_arm"
motor {
motor_system_id: "ethercat_motors"
motor_group_ids: "right_arm_ethercat"
dof: 7
joint_names: "R_SHOULDER_P"
upd_freq: 1000
buffer_size: 50
default_vel: 1.0
default_acc: 2.0
}
kinematics {
pinocchio_dls_ik_solver {
urdf_path: "model/xiaoyan_description/dual_arm.urdf"
base_frame_name: "PELVIS_S"
flange_frame_name: "R_WRIST_R_S"
tcp_frame_name: "R_FINGER_TIP_FIXED"
max_iters: 100
pos_eps: 1e-6
rot_eps: 1e-6
damping: 1e-6
joint_limit_policy {
limits {
enable: true
source: JOINT_LIMIT_SOURCE_CUSTOM
joints { joint_name: "R_SHOULDER_P" q_lb: -3.14 q_ub: 3.14 qd: 5.0 qdd: 10.0 }
joints { joint_name: "R_SHOULDER_R" q_lb: -0.78 q_ub: 1.57 qd: 5.0 qdd: 10.0 }
joints { joint_name: "R_SHOULDER_Y" q_lb: -3.14 q_ub: 3.14 qd: 5.0 qdd: 10.0 }
joints { joint_name: "R_ELBOW_R" q_lb: 0 q_ub: 2.05 qd: 5.0 qdd: 10.0 }
joints { joint_name: "R_WRIST_P" q_lb: -3.14 q_ub: 3.14 qd: 5.0 qdd: 10.0 }
joints { joint_name: "R_WRIST_Y" q_lb: -0.78 q_ub: 0.78 qd: 5.0 qdd: 10.0 }
joints { joint_name: "R_WRIST_R" q_lb: -0.57 q_ub: 1.57 qd: 5.0 qdd: 10.0 }
}
soft_limit {
enable: true
margin_ratio: 0.01
min_margin_rad: 0.01
}
avoidance {
enable: false
gain: 0.2
margin_ratio: 0.15
max_push: 0.25
weight: 0.05
}
}
}
}
motion {
move_j {
toppra_joint_motion_planner {
path_type: TOPPRA_PATH_TYPE_QUINTIC
sample_period_s: 0.001
grid_size: 150
high_grid_size: 300
}
}
move_l {
pinocchio_cartesian_motion_planner {
sample_period_s: 0.001
position_gain: 4.0
rotation_gain: 4.0
line_deviation_check {
enable: true
line_deviation_warn_m: 0.01
line_deviation_stop_m: 0.03
line_direction_warn_deg: 20.0
line_direction_stop_deg: 45.0
line_direction_reset_deg: 10.0
line_check_min_distance_m: 0.01
}
joint_continuity_check {
enable: true
max_joint_delta_rad: 0.05
max_joint_velocity_rad_s: 10.0
max_joint_acceleration_rad_s2: 5000.0
}
cartesian_step_feasibility_check {
enable: true
min_linear_speed_ratio: 0.2
max_linear_direction_deviation_deg: 45.0
min_angular_speed_ratio: 0.2
max_angular_direction_deviation_deg: 45.0
min_desired_linear_speed: 1e-4
min_desired_angular_speed: 1e-4
}
}
}
speed_l {
pinocchio_cartesian_motion_planner {
linear_velocity_max: 0.55
linear_acceleration_max: 5.0
linear_jerk_max: 10.0
angular_velocity_max: 1.0
angular_acceleration_max: 5.0
angular_jerk_max: 12.0
linear_target_replan_threshold: 1e-4
angular_target_replan_threshold: 1e-4
linear_reverse_cos_threshold: -0.8660254037844386
linear_reverse_switch_speed_threshold: 1e-3
enforce_joint_acceleration_limits: true
line_deviation_check {
enable: true
line_deviation_warn_m: 0.01
line_deviation_stop_m: 0.03
line_direction_warn_deg: 20.0
line_direction_stop_deg: 45.0
line_direction_reset_deg: 10.0
line_check_min_distance_m: 0.01
}
joint_velocity_check {
enable: true
max_joint_velocity_rad_s: 30.0
max_joint_acceleration_rad_s2: 10000.0
}
cartesian_velocity_feasibility_check {
enable: true
min_linear_speed_ratio: 0.2
max_linear_direction_deviation_deg: 5.0
min_angular_speed_ratio: 0.2
max_angular_direction_deviation_deg: 5.0
min_desired_linear_speed: 1e-4
min_desired_angular_speed: 1e-4
}
}
speed_l_controller {
cartesian_velocity_controller {
control_period_s: 0.001
stop_twist_norm: 1e-9
stop_command_velocity_norm: 1e-3
stop_measured_velocity_norm: 1e-2
stop_acceleration: 10
}
}
}
}
}
}

68
cmvr-es/config/devices/camera/camera.pb.txt
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@ -101,27 +101,7 @@ camera {
}
}
cameras {
id: "left_eye_cam"
uvc {
usb: "/dev/uvc_left_camera"
camera_mode: CAMERA_MODE_VIDEO
capture {
width: 640
height: 480
fps: 30
stream_mode: STREAM_MODE_RGB
}
encoder {
width: 640
height: 480
fps: 30
codec: "H265"
enable_stream_timestamp: true
buffer_size: 30
}
}
}
cameras {
id: "cam5"
@ -185,4 +165,50 @@ camera {
buffer_size: 30
}
}
cameras {
id: "real_cam1"
realsense {
serialNumber: "332522076896"
camera_mode: CAMERA_MODE_VIDEO
capture {
width: 640
height: 480
fps: 30
stream_mode: STREAM_MODE_RGBD
}
encoder {
width: 640
height: 480
fps: 30
codec: "h265_qsv"
enable_stream_timestamp: true
buffer_size: 30
}
align_mode: ALIGN_MODE_COLOR
sync: false
}
}
cameras {
id: "usb_cam1"
uvc {
usb: "/dev/video0"
camera_mode: CAMERA_MODE_VIDEO
capture {
width: 640
height: 480
fps: 30
stream_mode: STREAM_MODE_RGB
}
encoder {
width: 640
height: 480
fps: 30
codec: "h265_qsv"
enable_stream_timestamp: true
buffer_size: 30
}
}
}
}

2
cmvr-es/config/devices/microphone/microphone.pb.txt
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@ -5,7 +5,7 @@ microphone {
channels: 2
sampleRate: 48000
volume: 100
input_device: "default"
input_device: "plughw:CARD=XFMDPV0018,DEV=0"
}
}
}

16
cmvr-es/config/devices/motor/ethercat_motors.pb.txt
View File

@ -15,14 +15,14 @@ motor {
cia402 {
profile_position_trigger_delay_ms: 2
state_transition_timeout_ms: 1200
state_transition_timeout_ms: 5000
velocity_stop_timeout_ms: 2000
status_poll_period_ms: 10
stopped_velocity_tolerance_rad_s: 0.001
}
dc {
enable: true
enable: false
reference_motor_id: 1
sync0_cycle_us: 1000
sync0_shift_us: 0
@ -32,12 +32,6 @@ motor {
}
slaves { motor_id: 1 alias: 0 position: 0 }
slaves { motor_id: 2 alias: 0 position: 1 }
slaves { motor_id: 3 alias: 0 position: 2 }
slaves { motor_id: 4 alias: 0 position: 3 }
slaves { motor_id: 5 alias: 0 position: 4 }
slaves { motor_id: 6 alias: 0 position: 5 }
slaves { motor_id: 7 alias: 0 position: 6 }
}
joint_limits {
@ -54,12 +48,6 @@ motor {
motors {
motors { id: 1 joint_name: "R_SHOULDER_P" encoder_counts_per_rev: 65536 gear_ratio: 101.0 }
motors { id: 2 joint_name: "R_SHOULDER_R" encoder_counts_per_rev: 65536 gear_ratio: 101.0 }
motors { id: 3 joint_name: "R_SHOULDER_Y" encoder_counts_per_rev: 65536 gear_ratio: 101.0 }
motors { id: 4 joint_name: "R_ELBOW_R" encoder_counts_per_rev: 65536 gear_ratio: 101.0 }
motors { id: 5 joint_name: "R_WRIST_P" encoder_counts_per_rev: 65536 gear_ratio: 101.0 }
motors { id: 6 joint_name: "R_WRIST_Y" encoder_counts_per_rev: 65536 gear_ratio: 101.0 }
motors { id: 7 joint_name: "R_WRIST_R" encoder_counts_per_rev: 65536 gear_ratio: 101.0 }
}
}
}

9
cmvr-es/config/devices/motor/ethercat_motors_two_real_test.pb.txt
View File

@ -10,7 +10,7 @@ motor {
ethercat {
master_index: 0
cycle_us: 1000
slave_op_timeout_ms: 15000
slave_op_timeout_ms: 20000
slave_state_poll_period_ms: 10
cia402 {
@ -35,15 +35,17 @@ motor {
slaves { motor_id: 2 alias: 0 position: 1 }
slaves { motor_id: 3 alias: 0 position: 2 }
slaves { motor_id: 4 alias: 0 position: 3 }
slaves { motor_id: 5 alias: 0 position: 4 }
}
joint_limits {
enable: true
source: JOINT_LIMIT_SOURCE_CUSTOM
joints { joint_name: "R_SHOULDER_P" q_lb: -3.14 q_ub: 3.14 qd: 5.0 qdd: 10.0 }
joints { joint_name: "R_SHOULDER_R" q_lb: -0.78 q_ub: 1.57 qd: 5.0 qdd: 10.0 }
joints { joint_name: "R_SHOULDER_R" q_lb: -3.14 q_ub: 3.14 qd: 5.0 qdd: 10.0 }
joints { joint_name: "R_SHOULDER_Y" q_lb: -3.14 q_ub: 3.14 qd: 5.0 qdd: 10.0 }
joints { joint_name: "R_ELBOW_R" q_lb: 0 q_ub: 2.05 qd: 5.0 qdd: 10.0 }
joints { joint_name: "R_ELBOW_R" q_lb: -3.14 q_ub: 3.14 qd: 5.0 qdd: 10.0 }
joints { joint_name: "R_WRIST_P" q_lb: -3.14 q_ub: 3.14 qd: 5.0 qdd: 10.0 }
}
motors {
@ -51,6 +53,7 @@ motor {
motors { id: 2 joint_name: "R_SHOULDER_R" encoder_counts_per_rev: 65536 gear_ratio: 101.0 }
motors { id: 3 joint_name: "R_SHOULDER_Y" encoder_counts_per_rev: 65536 gear_ratio: 101.0 }
motors { id: 4 joint_name: "R_ELBOW_R" encoder_counts_per_rev: 65536 gear_ratio: 101.0 }
motors { id: 5 joint_name: "R_WRIST_P" encoder_counts_per_rev: 65536 gear_ratio: 101.0 }
}
}
}

23
cmvr-es/config/manager/device_manager.pb.txt
View File

@ -89,6 +89,13 @@ device_manager {
enable: false
}
devices {
id: "eyou_arm"
type: DEVICE_TYPE_ROBOT_ARM
config_file: "devices/arm/arm.pb.txt"
enable: false
}
devices {
id: "aubo_arm"
type: DEVICE_TYPE_ROBOT_ARM
@ -147,4 +154,20 @@ device_manager {
# Host-development default: keep physical audio devices disabled.
enable: false
}
devices {
id: "real_cam1"
type: DEVICE_TYPE_CAMERA
config_file: "devices/camera/camera.pb.txt"
# Host-development default: keep physical cameras disabled.
enable: true
}
devices {
id: "usb_cam1"
type: DEVICE_TYPE_CAMERA
config_file: "devices/camera/camera.pb.txt"
# Host-development default: keep physical cameras disabled.
enable: true
}
}

2
cmvr-es/config/manager/task_manager.pb.txt
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@ -28,6 +28,6 @@ task_manager {
run_mode: TASK_RUN_MODE_BLOCKING_SERVICE
config_file: "tasks/quic_edge_task/quic_edge_task.pb.txt"
# Host-development default: no QUIC Gateway or physical media devices.
enable: true
enable: false
}
}

8
cmvr-es/config/tasks/quic_edge_task/quic_edge_task.pb.txt
View File

@ -3,7 +3,7 @@ quic_edge {
# Task enablement is controlled by manager/task_manager.pb.txt. Configure a
# reachable QUIC Gateway and TLS policy before enabling the task there.
server_host: "quic-gateway.example.com"
server_host: "192.168.0.222"
server_port: 4433
alpn: "cmvr-quic-edge/1"
node_id: "cmvr-edge"
@ -23,10 +23,8 @@ quic_edge {
control_response_timeout_ms: 1000
tls {
ca_file: "certs/quic_gateway_ca.pem"
certificate_file: "certs/cmvr_edge_cert.pem"
private_key_file: "certs/cmvr_edge_key.pem"
server_name: "quic-gateway.example.com"
ca_file: "certs/cmvr-quic-ca.crt"
server_name: "192.168.0.222"
allow_insecure: false
}

42
cmvr-es/devices/camera/common/src/camera_stream_encoder.cpp
View File

@ -6,6 +6,7 @@
#include <sstream>
#include <libavutil/opt.h>
#include <libavutil/pixdesc.h>
#include <opencv2/imgproc.hpp>
#include "common/base/logging/logger.h"
@ -48,6 +49,13 @@ void drawTimeStamp(cv::Mat& image)
const AVCodec* findEncoder(const std::string& codec_name)
{
if (codec_name == "h264_qsv" || codec_name == "H264_QSV") {
return avcodec_find_encoder_by_name("h264_qsv");
}
if (codec_name == "hevc_qsv" || codec_name == "h265_qsv" ||
codec_name == "HEVC_QSV" || codec_name == "H265_QSV") {
return avcodec_find_encoder_by_name("hevc_qsv");
}
if (codec_name == "h264" || codec_name == "H264") {
const AVCodec* codec = avcodec_find_encoder_by_name("libx264");
return codec ? codec : avcodec_find_encoder(AV_CODEC_ID_H264);
@ -129,7 +137,17 @@ bool CameraStreamEncoder::init(std::shared_ptr<FfmpegEncoderInfo>& encoder,
ctx->max_b_frames = 0;
ctx->gop_size = 10;
if (codec->id == AV_CODEC_ID_H264) {
const bool is_qsv = codec->name &&
(std::string(codec->name) == "h264_qsv" || std::string(codec->name) == "hevc_qsv");
if (is_qsv) {
// Feed system-memory NV12 frames to oneVPL/QSV. The QSV encoder
// performs the upload and hardware encoding internally.
ctx->pix_fmt = AV_PIX_FMT_NV12;
ctx->bit_rate = 4'000'000;
av_opt_set_int(ctx->priv_data, "async_depth", 1, 0);
av_opt_set_int(ctx->priv_data, "repeat_pps", 1, 0);
} else if (codec->id == AV_CODEC_ID_H264) {
av_opt_set(ctx->priv_data, "preset", "ultrafast", 0);
av_opt_set(ctx->priv_data, "tune", "zerolatency", 0);
av_opt_set(ctx->priv_data, "profile", "baseline", 0);
@ -144,12 +162,14 @@ bool CameraStreamEncoder::init(std::shared_ptr<FfmpegEncoderInfo>& encoder,
av_opt_set(ctx->priv_data, "no-open-gop", "1", 0);
}
if (!is_qsv) {
const AVPixelFormat* pix_fmts = codec->pix_fmts;
if (!pix_fmts) {
ctx->pix_fmt = AV_PIX_FMT_YUV420P;
} else {
ctx->pix_fmt = pix_fmts[0];
}
}
const int open_ret = avcodec_open2(ctx, codec, nullptr);
if (open_ret < 0) {
@ -179,9 +199,11 @@ bool CameraStreamEncoder::init(std::shared_ptr<FfmpegEncoderInfo>& encoder,
return false;
}
CMVR_LOG(INFO) << "[CameraStreamEncoder] initialized " << codec_name
const char* pixel_format_name = av_get_pix_fmt_name(ctx->pix_fmt);
CMVR_LOG(INFO) << "[CameraStreamEncoder] initialized " << codec->name
<< " encoder, size=" << width << "x" << height
<< ", fps=" << fps;
<< ", fps=" << fps
<< ", pixel_format=" << (pixel_format_name ? pixel_format_name : "unknown");
return true;
}
@ -216,10 +238,8 @@ bool CameraStreamEncoder::encode(std::shared_ptr<FfmpegEncoderInfo>& encoder,
return false;
}
if (encoder->sws_context) {
sws_freeContext(encoder->sws_context);
}
encoder->sws_context = sws_getContext(frame_to_encode.cols,
encoder->sws_context = sws_getCachedContext(encoder->sws_context,
frame_to_encode.cols,
frame_to_encode.rows,
src_pix_fmt,
encoder->codec_context->width,
@ -234,6 +254,14 @@ bool CameraStreamEncoder::encode(std::shared_ptr<FfmpegEncoderInfo>& encoder,
return false;
}
const int writable_ret = av_frame_make_writable(encoder->frame);
if (writable_ret < 0) {
char errbuf[AV_ERROR_MAX_STRING_SIZE] = {0};
av_strerror(writable_ret, errbuf, sizeof(errbuf));
CMVR_LOG(ERROR) << "[CameraStreamEncoder] frame is not writable: " << errbuf;
return false;
}
const uint8_t* src_data[AV_NUM_DATA_POINTERS] = {frame_to_encode.data};
int src_linesize[AV_NUM_DATA_POINTERS] = {static_cast<int>(frame_to_encode.step)};

56
cmvr-es/devices/camera/realsense_camera/src/realsense_camera.cpp
View File

@ -314,8 +314,20 @@ bool RealsenseCamera::stop() {
CMVR_LOG(WARNING) << "[RealsenseCamera] (stop): stopRecording failed: " << e.what();
}
}
std::shared_ptr<std::thread> stream_thread_to_join;
{
std::lock_guard lock(ctrl_mtx_);
clear_error_();
stream_count_ = 0;
state_.is_streaming = false;
state_.is_recording = false;
stream_thread_to_join = stream_thread_;
stream_thread_.reset();
}
if (stream_thread_to_join && stream_thread_to_join->joinable()) {
stream_thread_to_join->join();
}
std::lock_guard lock(ctrl_mtx_);
if (!state_.is_opened || !state_.is_initialized) {
state_.is_opened = false;
return true;
@ -524,9 +536,12 @@ void RealsenseCamera::startRecording(const std::string &video_path) {
// 1. 确定编码格式对应的AVCodecID（H.264/H.265）
AVCodecID codec_id;
if (codec_ == "H264" || codec_ == "h264") {
if (codec_ == "H264" || codec_ == "h264" ||
codec_ == "H264_QSV" || codec_ == "h264_qsv") {
codec_id = AV_CODEC_ID_H264;
} else if (codec_ == "H265" || codec_ == "hevc") {
} else if (codec_ == "H265" || codec_ == "h265" || codec_ == "HEVC" || codec_ == "hevc" ||
codec_ == "H265_QSV" || codec_ == "h265_qsv" ||
codec_ == "HEVC_QSV" || codec_ == "hevc_qsv") {
codec_id = AV_CODEC_ID_HEVC;
} else {
state_.is_error = true;
@ -534,7 +549,8 @@ void RealsenseCamera::startRecording(const std::string &video_path) {
CMVR_LOG(ERROR) << "[RealsenseCamera] (startRecording): " << state_.error_message;
return;
}
const char* format_name = (codec_ == "H265" || codec_ == "h265" || codec_ == "HEVC" || codec_ == "hevc") ? "mp4" : "avi";
const bool is_hevc = codec_id == AV_CODEC_ID_HEVC;
const char* format_name = is_hevc ? "mp4" : "avi";
auto ret = avformat_alloc_output_context2(&format_context_, nullptr, format_name, output_path_.c_str());
// 2. 创建输出格式上下文（封装器核心）
if (ret < 0) {
@ -719,11 +735,15 @@ void RealsenseCamera::streaming_worker_() {
bool success = false;
is_streaming_running = true;
uint64_t frame_sequence = 0;
const uint64_t stream_epoch = static_cast<uint64_t>(
std::chrono::duration_cast<std::chrono::nanoseconds>(
std::chrono::steady_clock::now().time_since_epoch()).count());
// 处于流传输或者录像状态时就不退出线程
while (state_.is_streaming || state_.is_recording) {
// 记录当前帧处理开始时间
auto frame_start_time = std::chrono::high_resolution_clock::now();
const auto frame_start_time = std::chrono::steady_clock::now();
rs2::frameset frames;
frames = get_frameset(true);
@ -786,6 +806,20 @@ void RealsenseCamera::streaming_worker_() {
// 深度图编码
// success = encodeFrameWithEncoder(depthEncoder_, frame_data.depthImage, frame_data.depthFrame, frame_data.depthKey);
if (success) {
const uint64_t sequence = frame_sequence++;
frame_data.stream_epoch = stream_epoch;
frame_data.sequence = sequence;
frame_data.source_timestamp = static_cast<uint64_t>(color_frame.get_timestamp());
frame_data.source_frame_number = color_frame.get_frame_number();
frame_data.capture_monotonic_ns = std::chrono::duration_cast<std::chrono::nanoseconds>(
frame_start_time.time_since_epoch()).count();
frame_data.capture_utc_ns = std::chrono::duration_cast<std::chrono::nanoseconds>(
std::chrono::system_clock::now().time_since_epoch()).count();
frame_data.pts = static_cast<int64_t>(sequence);
frame_data.dts = frame_data.pts;
frame_data.time_base_num = 1;
frame_data.time_base_den = fps_;
frame_data.duration = 1;
frame_data.fps = fps_;
frame_data.width = encode_width_;
frame_data.height = encode_height_;
@ -794,7 +828,7 @@ void RealsenseCamera::streaming_worker_() {
}
// 计算从帧开始到现在的总耗时
auto total_duration = std::chrono::duration_cast<std::chrono::milliseconds>(
std::chrono::high_resolution_clock::now() - frame_start_time
std::chrono::steady_clock::now() - frame_start_time
).count();
// 计算需要休眠的时间(确保总耗时达到frame_interval)
@ -961,12 +995,24 @@ bool RealsenseCamera::startStreaming()
void RealsenseCamera::stopStreaming()
{
std::shared_ptr<std::thread> stream_thread_to_join;
{
std::lock_guard lock(ctrl_mtx_);
if (stream_count_ > 0) {
stream_count_--;
}
if (stream_count_ == 0)
{
// 当前已经没有正在使用的流了，编码采集线程状态修改
state_.is_streaming = false;
if (!state_.is_recording) {
stream_thread_to_join = stream_thread_;
stream_thread_.reset();
}
}
}
if (stream_thread_to_join && stream_thread_to_join->joinable()) {
stream_thread_to_join->join();
}
}

97
cmvr-es/devices/camera/uvc_camera/src/uvc_camera.cpp
View File

@ -294,9 +294,12 @@ void UVCCamera::startRecording(const std::string &video_path) {
// 1. 确定编码格式对应的AVCodecID（H.264/H.265）
AVCodecID codec_id;
if (codec_ == "H264" || codec_ == "h264") {
if (codec_ == "H264" || codec_ == "h264" ||
codec_ == "H264_QSV" || codec_ == "h264_qsv") {
codec_id = AV_CODEC_ID_H264;
} else if (codec_ == "H265" || codec_ == "hevc") {
} else if (codec_ == "H265" || codec_ == "h265" || codec_ == "HEVC" || codec_ == "hevc" ||
codec_ == "H265_QSV" || codec_ == "h265_qsv" ||
codec_ == "HEVC_QSV" || codec_ == "hevc_qsv") {
codec_id = AV_CODEC_ID_HEVC;
} else {
state_.is_error = true;
@ -304,7 +307,8 @@ void UVCCamera::startRecording(const std::string &video_path) {
CMVR_LOG(ERROR) << "[UVCCamera] (startRecording): " << state_.error_message;
return;
}
const char* format_name = (codec_ == "H265" || codec_ == "h265" || codec_ == "HEVC" || codec_ == "hevc") ? "mp4" : "avi";
const bool is_hevc = codec_id == AV_CODEC_ID_HEVC;
const char* format_name = is_hevc ? "mp4" : "avi";
auto ret = avformat_alloc_output_context2(&format_context_, nullptr, format_name, output_path_.c_str());
// 2. 创建输出格式上下文（封装器核心）
if (ret < 0) {
@ -479,17 +483,32 @@ void UVCCamera::streaming_worker_() {
bool success = false;
is_streaming_running = true;
cv::Mat frame;
int64_t frame_count = 0;
uint64_t frame_sequence = 0;
const uint64_t stream_epoch = static_cast<uint64_t>(
std::chrono::duration_cast<std::chrono::nanoseconds>(
std::chrono::steady_clock::now().time_since_epoch()).count());
constexpr int kTimingWindowFrames = 30;
int timing_frame_count = 0;
int timing_encoded_count = 0;
int64_t capture_us = 0;
int64_t copy_us = 0;
int64_t resize_us = 0;
int64_t encode_us = 0;
int64_t processing_us = 0;
auto timing_window_start = std::chrono::steady_clock::now();
// 处于流传输或者录像状态时就不退出线程
while (state_.is_streaming || state_.is_recording) {
// 记录当前帧处理开始时间
auto frame_start_time = std::chrono::high_resolution_clock::now();
const auto frame_start_time = std::chrono::steady_clock::now();
if (!cap_.read(frame) || frame.empty()) {
state_.is_error = true;
state_.error_message = "failed to read frame";
CMVR_LOG(ERROR) << "[UVCCamera]streaming_worker_: " << state_.error_message;
break;
}
const auto capture_end_time = std::chrono::steady_clock::now();
// 以下为编码部分，用于流模式
StreamFrameData frame_data;
@ -497,6 +516,8 @@ void UVCCamera::streaming_worker_() {
{
frame.copyTo(frame_data.rgbImage); // 执行深拷贝
}
const auto copy_end_time = std::chrono::steady_clock::now();
// rgb图像编码
cv::Mat rgb_to_encode = frame_data.rgbImage;
if (encode_width_ > 0 && encode_height_ > 0 &&
@ -508,6 +529,8 @@ void UVCCamera::streaming_worker_() {
0.0,
cv::INTER_LINEAR);
}
const auto resize_end_time = std::chrono::steady_clock::now();
CameraStreamEncodeOptions encode_options;
encode_options.draw_timestamp = enable_stream_timestamp_;
success = CameraStreamEncoder::encode(rgbEncoder_,
@ -515,21 +538,79 @@ void UVCCamera::streaming_worker_() {
frame_data.rgbFrame,
frame_data.bKey,
encode_options);
const auto encode_end_time = std::chrono::steady_clock::now();
if (success) {
const uint64_t sequence = frame_sequence++;
frame_data.stream_epoch = stream_epoch;
frame_data.sequence = sequence;
frame_data.capture_monotonic_ns = std::chrono::duration_cast<std::chrono::nanoseconds>(
frame_start_time.time_since_epoch()).count();
frame_data.capture_utc_ns = std::chrono::duration_cast<std::chrono::nanoseconds>(
std::chrono::system_clock::now().time_since_epoch()).count();
frame_data.pts = static_cast<int64_t>(sequence);
frame_data.dts = frame_data.pts;
frame_data.time_base_num = 1;
frame_data.time_base_den = fps_;
frame_data.duration = 1;
frame_data.fps = fps_;
frame_data.width = encode_width_;
frame_data.height = encode_height_;
frame_data.codec = codec_;
stream_frame_buffer_->push(frame_data);
++timing_encoded_count;
}
else
{
capture_us += std::chrono::duration_cast<std::chrono::microseconds>(
capture_end_time - frame_start_time).count();
copy_us += std::chrono::duration_cast<std::chrono::microseconds>(
copy_end_time - capture_end_time).count();
resize_us += std::chrono::duration_cast<std::chrono::microseconds>(
resize_end_time - copy_end_time).count();
encode_us += std::chrono::duration_cast<std::chrono::microseconds>(
encode_end_time - resize_end_time).count();
processing_us += std::chrono::duration_cast<std::chrono::microseconds>(
encode_end_time - frame_start_time).count();
++timing_frame_count;
if (timing_frame_count == kTimingWindowFrames) {
const auto now = std::chrono::steady_clock::now();
const auto window_us = std::chrono::duration_cast<std::chrono::microseconds>(
now - timing_window_start).count();
const double actual_fps = window_us > 0
? timing_frame_count * 1'000'000.0 / static_cast<double>(window_us)
: 0.0;
const double divisor = static_cast<double>(timing_frame_count) * 1000.0;
CMVR_LOG(INFO) << "[UVCCamera] pipeline timing"
<< ", device=" << serial_
<< ", codec=" << codec_
<< ", actual_fps=" << actual_fps
<< ", encoded=" << timing_encoded_count << "/" << timing_frame_count
<< ", capture_ms=" << capture_us / divisor
<< ", copy_ms=" << copy_us / divisor
<< ", resize_ms=" << resize_us / divisor
<< ", encode_ms=" << encode_us / divisor
<< ", processing_ms=" << processing_us / divisor;
timing_frame_count = 0;
timing_encoded_count = 0;
capture_us = 0;
copy_us = 0;
resize_us = 0;
encode_us = 0;
processing_us = 0;
timing_window_start = now;
}
if (!success) {
std::this_thread::sleep_for(std::chrono::milliseconds(frame_interval));
continue;
}
// 计算从帧开始到现在的总耗时
auto total_duration = std::chrono::duration_cast<std::chrono::milliseconds>(
std::chrono::high_resolution_clock::now() - frame_start_time
std::chrono::steady_clock::now() - frame_start_time
).count();
// 计算需要休眠的时间(确保总耗时达到frame_interval)

4
cmvr-es/devices/microphone/ffmpeg_microphone/src/ffmpeg_microphone.cpp
View File

@ -452,8 +452,8 @@ bool ffmpegMicroPhone::initFFmpeg()
avdevice_register_all();
logSupportedAudioInputFormats();
const char* input_format_name = "pulse";
AVInputFormat* input_fmt = av_find_input_format(input_format_name);
const char* input_format_name = "alsa";
const AVInputFormat* input_fmt = av_find_input_format(input_format_name);
if (!input_fmt) {
input_format_name = "alsa";
input_fmt = av_find_input_format(input_format_name);

14
cmvr-es/devices/motor/drivers/ethercat_motor/src/vendor/eyou/eyou_motor_device_manager_real_test.cpp vendored
View File

@ -22,16 +22,16 @@ namespace {
constexpr const char* kMotorManagerId = "ethercat_motors";
constexpr const char* kMotorConfigFile =
"devices/motor/ethercat_motors_two_real_test.pb.txt";
constexpr std::array<int, 4> kFourMotorIds{1, 2, 3, 4};
constexpr std::array<int, 5> kFourMotorIds{1, 2, 3, 4,5};
constexpr std::chrono::milliseconds kCyclicCommandPeriod{1};
constexpr std::chrono::milliseconds kPrintPeriod{100};
constexpr std::chrono::milliseconds kStatsSamplePeriod{10};
constexpr std::chrono::milliseconds kHoldAfterTrajectoryDuration{500};
constexpr std::chrono::milliseconds kFourMotorTrajectoryDuration{20000};
constexpr std::chrono::milliseconds kFourMotorTrajectoryDuration{200000000};
constexpr double kPi = 3.14159265358979323846;
constexpr double kFourMotorAmplitudeRad = 0.2;
constexpr double kFourMotorPeriodS = 1.0;
constexpr std::array<double, 4> kFourMotorPhaseRad{0.0, 0.0, 0.0, 0.0};
constexpr double kFourMotorAmplitudeRad = 3.0;
constexpr double kFourMotorPeriodS =10;
constexpr std::array<double, 5> kFourMotorPhaseRad{0.0, 0.0, 0.0, 0.0,0};
class DeviceManagerDestroyGuard {
public:
@ -226,8 +226,8 @@ TEST(EyouMotorDeviceManagerRealTest, CommandFourCyclicPositionSinTrajectory)
std::array<double, kFourMotorIds.size()> target_qd{};
for (std::size_t i = 0; i < motors.size(); ++i) {
const double theta = omega * t_s + kFourMotorPhaseRad[i];
target_q[i] = center_q[i] + kFourMotorAmplitudeRad * (1.0 - std::cos(theta));
target_qd[i] = kFourMotorAmplitudeRad * omega * std::sin(theta);
target_q[i] = center_q[i] + kFourMotorAmplitudeRad * std::sin(theta);
target_qd[i] = kFourMotorAmplitudeRad * omega * std::cos(theta);
ASSERT_TRUE(motors[i]->commandCyclicPosition(target_q[i], target_qd[i]));
}

12
cmvr-es/devices/motor/drivers/ethercat_motor/src/vendor/eyou/eyou_motor_real_test.cpp vendored
View File

@ -47,13 +47,13 @@ config::MotorGroupConfig createSingleSlaveGroup()
auto* cia402 = ethercat->mutable_cia402();
cia402->set_profile_position_trigger_delay_ms(2);
cia402->set_state_transition_timeout_ms(1200);
cia402->set_state_transition_timeout_ms(2000);
cia402->set_velocity_stop_timeout_ms(2000);
cia402->set_status_poll_period_ms(10);
cia402->set_stopped_velocity_tolerance_rad_s(0.001);
auto* dc = ethercat->mutable_dc();
dc->set_enable(true);
dc->set_enable(false);
dc->set_reference_motor_id(kMotorId);
dc->set_sync0_cycle_us(1000);
dc->set_sync0_shift_us(0);
@ -443,8 +443,8 @@ TEST(EyouMotorRealTest, QuickStopInProfilePosition)
const std::chrono::milliseconds quick_stop_time{1000};
const double start_q = motor->getQ();
const double target_q = nearbySafeTarget(start_q, 4.0);
const double max_qd = 2.0;
const double target_q = nearbySafeTarget(start_q, 5.0);
const double max_qd = 5.0;
const double max_qdd = 10.0;
std::cout << "motor.commandProfilePosition(" << target_q
@ -520,7 +520,7 @@ TEST(EyouMotorRealTest, QuickStopInCyclicPosition)
const std::chrono::milliseconds run_duration{2000};
const double start_q = motor->getQ();
const double target_qd = start_q > 0.0 ? -2.0 : 2.0;
const double target_qd = start_q > 0.0 ? -5.0 : 5.0;
std::cout << "motor.commandCyclicPosition(linear), start_q=" << start_q
<< " rad, target_qd=" << target_qd
@ -549,7 +549,7 @@ TEST(EyouMotorRealTest, QuickStopInCyclicPosition)
}
std::cout << "motor.quickStop()" << std::endl;
ASSERT_TRUE(motor->quickStop());
// ASSERT_TRUE(motor->quickStop());
printMotorState("after quickStop", *motor);
printRawEthercatFeedback("raw feedback", runtime);
sampleMotorState(*motor, std::chrono::milliseconds{1000});

2
cmvr-es/devices/speaker/ffmpeg_speaker/src/ffmpeg_speaker.cpp
View File

@ -304,7 +304,7 @@ void ffmpegSpeaker::decode_audio_() {
return;
}
AVCodec* decoder = nullptr;
const AVCodec* decoder = nullptr;
const int stream_index = av_find_best_stream(fmt_ctx.get(), AVMEDIA_TYPE_AUDIO, -1, -1, &decoder, 0);
if (stream_index < 0) {
{

50
cmvr-es/main.cpp
View File

@ -4,6 +4,7 @@
#include "common/base/logging/logger.h"
#include "runtime/include/cmvr_runtime.h"
namespace {
bool blockShutdownSignals(sigset_t& shutdown_signals)
@ -16,8 +17,57 @@ bool blockShutdownSignals(sigset_t& shutdown_signals)
} // namespace
namespace fs = std::filesystem;
static bool setupIntelMediaEnvironment()
{
char exe_path_buffer[PATH_MAX] = {};
const ssize_t length = readlink(
"/proc/self/exe",
exe_path_buffer,
sizeof(exe_path_buffer) - 1);
if (length <= 0) {
std::cerr << "Failed to resolve /proc/self/exe\n";
return false;
}
exe_path_buffer[length] = '\0';
const fs::path executable_path(exe_path_buffer);
const fs::path bin_directory = executable_path.parent_path();
const fs::path install_directory = bin_directory.parent_path();
const fs::path library_directory = install_directory / "lib";
const fs::path va_driver_directory = library_directory / "dri";
const fs::path ihd_driver = va_driver_directory / "iHD_drv_video.so";
if (!fs::exists(ihd_driver)) {
std::cerr << "Intel media driver not found: "
<< ihd_driver << '\n';
return false;
}
// overwrite=1：强制 cmvr-es 使用随项目发布的媒体运行时。
setenv("LIBVA_DRIVER_NAME", "iHD", 1);
setenv(
"LIBVA_DRIVERS_PATH",
va_driver_directory.c_str(),
1);
setenv(
"ONEVPL_SEARCH_PATH",
library_directory.c_str(),
1);
return true;
}
int main()
{
if (!setupIntelMediaEnvironment()) {
return EXIT_FAILURE;
}
sigset_t shutdown_signals;
if (!blockShutdownSignals(shutdown_signals)) {
return 1;

6
cmvr-es/manager/media_source_hub/src/device_media_source_adapter.cpp
View File

@ -32,10 +32,12 @@ std::string normalizedCodec(std::string codec) {
Codec videoCodec(const std::string& value) {
const std::string codec = normalizedCodec(value);
if (codec == "h264" || codec == "avc" || codec == "avc1" || codec == "libx264") {
if (codec == "h264" || codec == "avc" || codec == "avc1" ||
codec == "libx264" || codec == "h264qsv") {
return Codec::H264;
}
if (codec == "h265" || codec == "hevc" || codec == "hvc1" || codec == "libx265") {
if (codec == "h265" || codec == "hevc" || codec == "hvc1" ||
codec == "libx265" || codec == "h265qsv" || codec == "hevcqsv") {
return Codec::H265;
}
return Codec::UNKNOWN;

70
cmvr-es/service/grpc/src/grpc_camera_service.cpp
View File

@ -7,9 +7,11 @@
#include "../include/grpc_camera_service.h"
#include <algorithm>
#include <atomic>
#include <chrono>
#include <cstdint>
#include <limits>
#include <thread>
using namespace std;
using namespace cmvr::service;
@ -667,7 +669,40 @@ grpc::Status gRPCCameraServiceImpl::GetRGBImageStream(grpc::ServerContext* conte
return grpc::Status::OK;
}
std::atomic<bool> client_eof_requested{false};
std::atomic<bool> request_stream_closed{false};
std::atomic<uint64_t> control_requests_read{1};
std::thread request_reader([&] {
api::GetRGBImageStreamCommand_Request control_request;
while (stream->Read(&control_request)) {
++control_requests_read;
if (control_request.eof()) {
client_eof_requested.store(true, std::memory_order_release);
CMVR_LOG(INFO) << "[gRPCCameraServiceImpl] client requested RGB stream EOF"
<< ", id=" << dev_id
<< ", peer=" << context->peer()
<< ", control_requests=" << control_requests_read.load();
break;
}
}
request_stream_closed.store(true, std::memory_order_release);
});
struct RequestReaderJoiner {
std::thread& thread;
~RequestReaderJoiner() {
if (thread.joinable()) {
thread.join();
}
}
} request_reader_joiner{request_reader};
const auto join_request_reader = [&] {
if (request_reader.joinable()) {
request_reader.join();
}
};
bool waiting_for_key_frame = true;
const char* exit_reason = "unknown";
auto last_key_frame_request = std::chrono::steady_clock::now();
auto last_latency_log = std::chrono::steady_clock::time_point{};
uint64_t discarded_since_log = 0;
@ -713,15 +748,25 @@ grpc::Status gRPCCameraServiceImpl::GetRGBImageStream(grpc::ServerContext* conte
};
while (true)
{
if (client_eof_requested.load(std::memory_order_acquire)) {
exit_reason = "client_eof";
break;
}
if (context->IsCancelled())
{
CMVR_LOG(INFO) << "[gRPCCameraServiceImpl](GetRGBImageStream) context is cancelled,id=" << dev_id;
exit_reason = "context_cancelled";
CMVR_LOG(INFO) << "[gRPCCameraServiceImpl](GetRGBImageStream) context is cancelled"
<< ", id=" << dev_id
<< ", peer=" << context->peer()
<< ", client_eof=" << client_eof_requested.load()
<< ", request_stream_closed=" << request_stream_closed.load();
break;
}
const auto read = subscription.waitRead(std::chrono::milliseconds(100));
if (!read || !read->value || read->value->empty()) {
if (!subscription.valid()) {
exit_reason = "subscription_invalid";
break;
}
if (waiting_for_key_frame) {
@ -765,6 +810,7 @@ grpc::Status gRPCCameraServiceImpl::GetRGBImageStream(grpc::ServerContext* conte
"Unsupported camera stream codec or payload format: " + dev_id);
setCurrentTimestamp(response.mutable_header()->mutable_timestamp());
stream->Write(response);
exit_reason = "unsupported_stream";
break;
}
if (read->dropped_since_last_read > 0 || read->generation_changed || frame.discontinuity) {
@ -808,7 +854,17 @@ grpc::Status gRPCCameraServiceImpl::GetRGBImageStream(grpc::ServerContext* conte
const auto write_started = std::chrono::steady_clock::now();
if (!stream->Write(response)) {
CMVR_LOG(INFO) << "[gRPCCameraServiceImpl] (stream->Write) failed,id=" << dev_id;
exit_reason = "write_failed";
CMVR_LOG(INFO) << "[gRPCCameraServiceImpl] (stream->Write) failed"
<< ", id=" << dev_id
<< ", peer=" << context->peer()
<< ", context_cancelled=" << context->IsCancelled()
<< ", client_eof=" << client_eof_requested.load()
<< ", request_stream_closed=" << request_stream_closed.load()
<< ", control_requests=" << control_requests_read.load()
<< ", write_ms="
<< std::chrono::duration_cast<std::chrono::microseconds>(
std::chrono::steady_clock::now() - write_started).count() / 1000.0;
break;
}
last_write_duration = std::chrono::duration_cast<std::chrono::microseconds>(
@ -829,7 +885,15 @@ grpc::Status gRPCCameraServiceImpl::GetRGBImageStream(grpc::ServerContext* conte
last_write_duration);
}
}
CMVR_LOG(INFO) << "[gRPCCameraServiceImpl] (GetRGBImageStream): end,id=" << dev_id;
join_request_reader();
CMVR_LOG(INFO) << "[gRPCCameraServiceImpl] (GetRGBImageStream): end"
<< ", id=" << dev_id
<< ", reason=" << exit_reason
<< ", peer=" << context->peer()
<< ", context_cancelled=" << context->IsCancelled()
<< ", client_eof=" << client_eof_requested.load()
<< ", request_stream_closed=" << request_stream_closed.load()
<< ", control_requests=" << control_requests_read.load();
return grpc::Status::OK;
}
catch (const exception &e) {

1
dependency/x86/third_party/aubo_sdk/v0.27.1/lib/libstdc++.so.6 vendored
View File

@ -1 +0,0 @@
libstdc++.so.6.0.25

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dependency/x86/third_party/aubo_sdk/v0.27.1/lib/libstdc++.so.6.0.25 vendored
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dependency/x86/third_party/ethercat/v1.7.0/bin/ethercat vendored
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6
dependency/x86/third_party/ethercat/v1.7.0/etc/ethercat.conf vendored
View File

@ -1,3 +1,3 @@
MASTER0_DEVICE="a0:ad:9f:c4:c2:2c"
DEVICE_MODULES="generic"
UPDOWN_INTERFACES="eno1"
MASTER0_DEVICE="00:e0:4c:93:b3:11"
DEVICE_MODULES="igc"
UPDOWN_INTERFACES="enp1s0"

2
dependency/x86/third_party/ethercat/v1.7.0/etc/init.d/ethercat vendored
View File

@ -40,7 +40,7 @@
#------------------------------------------------------------------------------
ETHERCATCTL="/home/lgv/cmvr/0-workspace/cmvr-es/dependency/x86/third_party/ethercat/v1.7.0/sbin/ethercatctl -c /home/lgv/cmvr/0-workspace/cmvr-es/dependency/x86/third_party/ethercat/v1.7.0/etc/sysconfig/ethercat"
ETHERCATCTL="/mnt/data/cmvr/cmvr-es/dependency/x86/third_party/ethercat/v1.7.0/sbin/ethercatctl -c /mnt/data/cmvr/cmvr-es/dependency/x86/third_party/ethercat/v1.7.0/etc/sysconfig/ethercat"
#------------------------------------------------------------------------------

4
dependency/x86/third_party/ethercat/v1.7.0/lib/cmake/ethercat/ethercat-config.cmake vendored
View File

@ -24,12 +24,12 @@
find_library(EtherCAT_LIBRARY
NAMES ethercat
PATHS /home/lgv/cmvr/0-workspace/cmvr-es/dependency/x86/third_party/ethercat/v1.7.0/lib
PATHS /mnt/data/cmvr/cmvr-es/dependency/x86/third_party/ethercat/v1.7.0/lib
)
find_path(EtherCAT_INCLUDE_DIR
NAMES ecrt.h
PATHS /home/lgv/cmvr/0-workspace/cmvr-es/dependency/x86/third_party/ethercat/v1.7.0/include
PATHS /mnt/data/cmvr/cmvr-es/dependency/x86/third_party/ethercat/v1.7.0/include
)
mark_as_advanced(EtherCAT_LIBRARY EtherCAT_INCLUDE_DIR)

BIN
dependency/x86/third_party/ethercat/v1.7.0/lib/libethercat.a vendored
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2
dependency/x86/third_party/ethercat/v1.7.0/lib/libethercat.la vendored
View File

@ -38,4 +38,4 @@ dlopen=''
dlpreopen=''
# Directory that this library needs to be installed in:
libdir='/home/lgv/cmvr/0-workspace/cmvr-es/dependency/x86/third_party/ethercat/v1.7.0/lib'
libdir='/mnt/data/cmvr/cmvr-es/dependency/x86/third_party/ethercat/v1.7.0/lib'

BIN
dependency/x86/third_party/ethercat/v1.7.0/lib/libethercat.so.1.2.0 vendored
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6
dependency/x86/third_party/ethercat/v1.7.0/lib/pkgconfig/libethercat.pc vendored
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@ -21,10 +21,10 @@
# vim: tw=78 noexpandtab
#
prefix=/home/lgv/cmvr/0-workspace/cmvr-es/dependency/x86/third_party/ethercat/v1.7.0
prefix=/mnt/data/cmvr/cmvr-es/dependency/x86/third_party/ethercat/v1.7.0
exec_prefix=${prefix}
libdir=/home/lgv/cmvr/0-workspace/cmvr-es/dependency/x86/third_party/ethercat/v1.7.0/lib
includedir=/home/lgv/cmvr/0-workspace/cmvr-es/dependency/x86/third_party/ethercat/v1.7.0/include
libdir=/mnt/data/cmvr/cmvr-es/dependency/x86/third_party/ethercat/v1.7.0/lib
includedir=/mnt/data/cmvr/cmvr-es/dependency/x86/third_party/ethercat/v1.7.0/include
Name: libethercat
Description: Client support library for the EtherCAT Master

4
dependency/x86/third_party/ethercat/v1.7.0/lib/systemd/system/ethercat.service vendored
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@ -31,8 +31,8 @@ Description=EtherCAT Master Kernel Modules
[Service]
Type=oneshot
RemainAfterExit=yes
ExecStart=/home/lgv/cmvr/0-workspace/cmvr-es/dependency/x86/third_party/ethercat/v1.7.0/sbin/ethercatctl start
ExecStop=/home/lgv/cmvr/0-workspace/cmvr-es/dependency/x86/third_party/ethercat/v1.7.0/sbin/ethercatctl stop
ExecStart=/mnt/data/cmvr/cmvr-es/dependency/x86/third_party/ethercat/v1.7.0/sbin/ethercatctl start
ExecStop=/mnt/data/cmvr/cmvr-es/dependency/x86/third_party/ethercat/v1.7.0/sbin/ethercatctl stop
[Install]
WantedBy=multi-user.target

4
dependency/x86/third_party/ethercat/v1.7.0/sbin/ethercatctl vendored
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@ -31,7 +31,7 @@ RMMOD="/sbin/rmmod"
MODINFO="/sbin/modinfo"
IP="/sbin/ip"
ETHERCAT="/home/lgv/cmvr/0-workspace/cmvr-es/dependency/x86/third_party/ethercat/v1.7.0/bin/ethercat"
ETHERCAT="/mnt/data/cmvr/cmvr-es/dependency/x86/third_party/ethercat/v1.7.0/bin/ethercat"
#------------------------------------------------------------------------------
@ -39,7 +39,7 @@ if [ "$1" = "-c" ]; then
ETHERCAT_CONFIG="$2"
COMMAND="$3"
else
ETHERCAT_CONFIG="/home/lgv/cmvr/0-workspace/cmvr-es/dependency/x86/third_party/ethercat/v1.7.0/etc/ethercat.conf"
ETHERCAT_CONFIG="/mnt/data/cmvr/cmvr-es/dependency/x86/third_party/ethercat/v1.7.0/etc/ethercat.conf"
COMMAND="$1"
fi

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dependency/x86/third_party/ffmpeg/v6.1/include/libavcodec/ac3_parser.h vendored Normal file
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/*
* AC-3 parser prototypes
* Copyright (c) 2003 Fabrice Bellard
* Copyright (c) 2003 Michael Niedermayer
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_AC3_PARSER_H
#define AVCODEC_AC3_PARSER_H
#include <stddef.h>
#include <stdint.h>
/**
* Extract the bitstream ID and the frame size from AC-3 data.
*/
int av_ac3_parse_header(const uint8_t *buf, size_t size,
uint8_t *bitstream_id, uint16_t *frame_size);
#endif /* AVCODEC_AC3_PARSER_H */

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dependency/x86/third_party/ffmpeg/v6.1/include/libavcodec/adts_parser.h vendored Normal file
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/*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_ADTS_PARSER_H
#define AVCODEC_ADTS_PARSER_H
#include <stddef.h>
#include <stdint.h>
#define AV_AAC_ADTS_HEADER_SIZE 7
/**
* Extract the number of samples and frames from AAC data.
* @param[in] buf pointer to AAC data buffer
* @param[out] samples Pointer to where number of samples is written
* @param[out] frames Pointer to where number of frames is written
* @return Returns 0 on success, error code on failure.
*/
int av_adts_header_parse(const uint8_t *buf, uint32_t *samples,
uint8_t *frames);
#endif /* AVCODEC_ADTS_PARSER_H */

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dependency/x86/third_party/ffmpeg/v6.1/include/libavcodec/avdct.h vendored Normal file
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/*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_AVDCT_H
#define AVCODEC_AVDCT_H
#include "libavutil/opt.h"
/**
* AVDCT context.
* @note function pointers can be NULL if the specific features have been
* disabled at build time.
*/
typedef struct AVDCT {
const AVClass *av_class;
void (*idct)(int16_t *block /* align 16 */);
/**
* IDCT input permutation.
* Several optimized IDCTs need a permutated input (relative to the
* normal order of the reference IDCT).
* This permutation must be performed before the idct_put/add.
* Note, normally this can be merged with the zigzag/alternate scan<br>
* An example to avoid confusion:
* - (->decode coeffs -> zigzag reorder -> dequant -> reference IDCT -> ...)
* - (x -> reference DCT -> reference IDCT -> x)
* - (x -> reference DCT -> simple_mmx_perm = idct_permutation
* -> simple_idct_mmx -> x)
* - (-> decode coeffs -> zigzag reorder -> simple_mmx_perm -> dequant
* -> simple_idct_mmx -> ...)
*/
uint8_t idct_permutation[64];
void (*fdct)(int16_t *block /* align 16 */);
/**
* DCT algorithm.
* must use AVOptions to set this field.
*/
int dct_algo;
/**
* IDCT algorithm.
* must use AVOptions to set this field.
*/
int idct_algo;
void (*get_pixels)(int16_t *block /* align 16 */,
const uint8_t *pixels /* align 8 */,
ptrdiff_t line_size);
int bits_per_sample;
void (*get_pixels_unaligned)(int16_t *block /* align 16 */,
const uint8_t *pixels,
ptrdiff_t line_size);
} AVDCT;
/**
* Allocates a AVDCT context.
* This needs to be initialized with avcodec_dct_init() after optionally
* configuring it with AVOptions.
*
* To free it use av_free()
*/
AVDCT *avcodec_dct_alloc(void);
int avcodec_dct_init(AVDCT *);
const AVClass *avcodec_dct_get_class(void);
#endif /* AVCODEC_AVDCT_H */

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dependency/x86/third_party/ffmpeg/v6.1/include/libavcodec/avfft.h vendored Normal file
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/*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_AVFFT_H
#define AVCODEC_AVFFT_H
#include "libavutil/attributes.h"
#include "version_major.h"
#if FF_API_AVFFT
/**
* @file
* @ingroup lavc_fft
* FFT functions
*/
/**
* @defgroup lavc_fft FFT functions
* @ingroup lavc_misc
*
* @{
*/
typedef float FFTSample;
typedef struct FFTComplex {
FFTSample re, im;
} FFTComplex;
typedef struct FFTContext FFTContext;
/**
* Set up a complex FFT.
* @param nbits log2 of the length of the input array
* @param inverse if 0 perform the forward transform, if 1 perform the inverse
* @deprecated use av_tx_init from libavutil/tx.h with a type of AV_TX_FLOAT_FFT
*/
attribute_deprecated
FFTContext *av_fft_init(int nbits, int inverse);
/**
* Do the permutation needed BEFORE calling ff_fft_calc().
* @deprecated without replacement
*/
attribute_deprecated
void av_fft_permute(FFTContext *s, FFTComplex *z);
/**
* Do a complex FFT with the parameters defined in av_fft_init(). The
* input data must be permuted before. No 1.0/sqrt(n) normalization is done.
* @deprecated use the av_tx_fn value returned by av_tx_init, which also does permutation
*/
attribute_deprecated
void av_fft_calc(FFTContext *s, FFTComplex *z);
attribute_deprecated
void av_fft_end(FFTContext *s);
/**
* @deprecated use av_tx_init from libavutil/tx.h with a type of AV_TX_FLOAT_MDCT,
* with a flag of AV_TX_FULL_IMDCT for a replacement to av_imdct_calc.
*/
attribute_deprecated
FFTContext *av_mdct_init(int nbits, int inverse, double scale);
attribute_deprecated
void av_imdct_calc(FFTContext *s, FFTSample *output, const FFTSample *input);
attribute_deprecated
void av_imdct_half(FFTContext *s, FFTSample *output, const FFTSample *input);
attribute_deprecated
void av_mdct_calc(FFTContext *s, FFTSample *output, const FFTSample *input);
attribute_deprecated
void av_mdct_end(FFTContext *s);
/* Real Discrete Fourier Transform */
enum RDFTransformType {
DFT_R2C,
IDFT_C2R,
IDFT_R2C,
DFT_C2R,
};
typedef struct RDFTContext RDFTContext;
/**
* Set up a real FFT.
* @param nbits log2 of the length of the input array
* @param trans the type of transform
*
* @deprecated use av_tx_init from libavutil/tx.h with a type of AV_TX_FLOAT_RDFT
*/
attribute_deprecated
RDFTContext *av_rdft_init(int nbits, enum RDFTransformType trans);
attribute_deprecated
void av_rdft_calc(RDFTContext *s, FFTSample *data);
attribute_deprecated
void av_rdft_end(RDFTContext *s);
/* Discrete Cosine Transform */
typedef struct DCTContext DCTContext;
enum DCTTransformType {
DCT_II = 0,
DCT_III,
DCT_I,
DST_I,
};
/**
* Set up DCT.
*
* @param nbits size of the input array:
* (1 << nbits) for DCT-II, DCT-III and DST-I
* (1 << nbits) + 1 for DCT-I
* @param type the type of transform
*
* @note the first element of the input of DST-I is ignored
*
* @deprecated use av_tx_init from libavutil/tx.h with an appropriate type of AV_TX_FLOAT_DCT
*/
attribute_deprecated
DCTContext *av_dct_init(int nbits, enum DCTTransformType type);
attribute_deprecated
void av_dct_calc(DCTContext *s, FFTSample *data);
attribute_deprecated
void av_dct_end (DCTContext *s);
/**
* @}
*/
#endif /* FF_API_AVFFT */
#endif /* AVCODEC_AVFFT_H */

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dependency/x86/third_party/ffmpeg/v6.1/include/libavcodec/bsf.h vendored Normal file
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@ -0,0 +1,332 @@
/*
* Bitstream filters public API
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_BSF_H
#define AVCODEC_BSF_H
#include "libavutil/dict.h"
#include "libavutil/log.h"
#include "libavutil/rational.h"
#include "codec_id.h"
#include "codec_par.h"
#include "packet.h"
/**
* @defgroup lavc_bsf Bitstream filters
* @ingroup libavc
*
* Bitstream filters transform encoded media data without decoding it. This
* allows e.g. manipulating various header values. Bitstream filters operate on
* @ref AVPacket "AVPackets".
*
* The bitstream filtering API is centered around two structures:
* AVBitStreamFilter and AVBSFContext. The former represents a bitstream filter
* in abstract, the latter a specific filtering process. Obtain an
* AVBitStreamFilter using av_bsf_get_by_name() or av_bsf_iterate(), then pass
* it to av_bsf_alloc() to create an AVBSFContext. Fill in the user-settable
* AVBSFContext fields, as described in its documentation, then call
* av_bsf_init() to prepare the filter context for use.
*
* Submit packets for filtering using av_bsf_send_packet(), obtain filtered
* results with av_bsf_receive_packet(). When no more input packets will be
* sent, submit a NULL AVPacket to signal the end of the stream to the filter.
* av_bsf_receive_packet() will then return trailing packets, if any are
* produced by the filter.
*
* Finally, free the filter context with av_bsf_free().
* @{
*/
/**
* The bitstream filter state.
*
* This struct must be allocated with av_bsf_alloc() and freed with
* av_bsf_free().
*
* The fields in the struct will only be changed (by the caller or by the
* filter) as described in their documentation, and are to be considered
* immutable otherwise.
*/
typedef struct AVBSFContext {
/**
* A class for logging and AVOptions
*/
const AVClass *av_class;
/**
* The bitstream filter this context is an instance of.
*/
const struct AVBitStreamFilter *filter;
/**
* Opaque filter-specific private data. If filter->priv_class is non-NULL,
* this is an AVOptions-enabled struct.
*/
void *priv_data;
/**
* Parameters of the input stream. This field is allocated in
* av_bsf_alloc(), it needs to be filled by the caller before
* av_bsf_init().
*/
AVCodecParameters *par_in;
/**
* Parameters of the output stream. This field is allocated in
* av_bsf_alloc(), it is set by the filter in av_bsf_init().
*/
AVCodecParameters *par_out;
/**
* The timebase used for the timestamps of the input packets. Set by the
* caller before av_bsf_init().
*/
AVRational time_base_in;
/**
* The timebase used for the timestamps of the output packets. Set by the
* filter in av_bsf_init().
*/
AVRational time_base_out;
} AVBSFContext;
typedef struct AVBitStreamFilter {
const char *name;
/**
* A list of codec ids supported by the filter, terminated by
* AV_CODEC_ID_NONE.
* May be NULL, in that case the bitstream filter works with any codec id.
*/
const enum AVCodecID *codec_ids;
/**
* A class for the private data, used to declare bitstream filter private
* AVOptions. This field is NULL for bitstream filters that do not declare
* any options.
*
* If this field is non-NULL, the first member of the filter private data
* must be a pointer to AVClass, which will be set by libavcodec generic
* code to this class.
*/
const AVClass *priv_class;
} AVBitStreamFilter;
/**
* @return a bitstream filter with the specified name or NULL if no such
* bitstream filter exists.
*/
const AVBitStreamFilter *av_bsf_get_by_name(const char *name);
/**
* Iterate over all registered bitstream filters.
*
* @param opaque a pointer where libavcodec will store the iteration state. Must
* point to NULL to start the iteration.
*
* @return the next registered bitstream filter or NULL when the iteration is
* finished
*/
const AVBitStreamFilter *av_bsf_iterate(void **opaque);
/**
* Allocate a context for a given bitstream filter. The caller must fill in the
* context parameters as described in the documentation and then call
* av_bsf_init() before sending any data to the filter.
*
* @param filter the filter for which to allocate an instance.
* @param[out] ctx a pointer into which the pointer to the newly-allocated context
* will be written. It must be freed with av_bsf_free() after the
* filtering is done.
*
* @return 0 on success, a negative AVERROR code on failure
*/
int av_bsf_alloc(const AVBitStreamFilter *filter, AVBSFContext **ctx);
/**
* Prepare the filter for use, after all the parameters and options have been
* set.
*
* @param ctx a AVBSFContext previously allocated with av_bsf_alloc()
*/
int av_bsf_init(AVBSFContext *ctx);
/**
* Submit a packet for filtering.
*
* After sending each packet, the filter must be completely drained by calling
* av_bsf_receive_packet() repeatedly until it returns AVERROR(EAGAIN) or
* AVERROR_EOF.
*
* @param ctx an initialized AVBSFContext
* @param pkt the packet to filter. The bitstream filter will take ownership of
* the packet and reset the contents of pkt. pkt is not touched if an error occurs.
* If pkt is empty (i.e. NULL, or pkt->data is NULL and pkt->side_data_elems zero),
* it signals the end of the stream (i.e. no more non-empty packets will be sent;
* sending more empty packets does nothing) and will cause the filter to output
* any packets it may have buffered internally.
*
* @return
* - 0 on success.
* - AVERROR(EAGAIN) if packets need to be retrieved from the filter (using
* av_bsf_receive_packet()) before new input can be consumed.
* - Another negative AVERROR value if an error occurs.
*/
int av_bsf_send_packet(AVBSFContext *ctx, AVPacket *pkt);
/**
* Retrieve a filtered packet.
*
* @param ctx an initialized AVBSFContext
* @param[out] pkt this struct will be filled with the contents of the filtered
* packet. It is owned by the caller and must be freed using
* av_packet_unref() when it is no longer needed.
* This parameter should be "clean" (i.e. freshly allocated
* with av_packet_alloc() or unreffed with av_packet_unref())
* when this function is called. If this function returns
* successfully, the contents of pkt will be completely
* overwritten by the returned data. On failure, pkt is not
* touched.
*
* @return
* - 0 on success.
* - AVERROR(EAGAIN) if more packets need to be sent to the filter (using
* av_bsf_send_packet()) to get more output.
* - AVERROR_EOF if there will be no further output from the filter.
* - Another negative AVERROR value if an error occurs.
*
* @note one input packet may result in several output packets, so after sending
* a packet with av_bsf_send_packet(), this function needs to be called
* repeatedly until it stops returning 0. It is also possible for a filter to
* output fewer packets than were sent to it, so this function may return
* AVERROR(EAGAIN) immediately after a successful av_bsf_send_packet() call.
*/
int av_bsf_receive_packet(AVBSFContext *ctx, AVPacket *pkt);
/**
* Reset the internal bitstream filter state. Should be called e.g. when seeking.
*/
void av_bsf_flush(AVBSFContext *ctx);
/**
* Free a bitstream filter context and everything associated with it; write NULL
* into the supplied pointer.
*/
void av_bsf_free(AVBSFContext **ctx);
/**
* Get the AVClass for AVBSFContext. It can be used in combination with
* AV_OPT_SEARCH_FAKE_OBJ for examining options.
*
* @see av_opt_find().
*/
const AVClass *av_bsf_get_class(void);
/**
* Structure for chain/list of bitstream filters.
* Empty list can be allocated by av_bsf_list_alloc().
*/
typedef struct AVBSFList AVBSFList;
/**
* Allocate empty list of bitstream filters.
* The list must be later freed by av_bsf_list_free()
* or finalized by av_bsf_list_finalize().
*
* @return Pointer to @ref AVBSFList on success, NULL in case of failure
*/
AVBSFList *av_bsf_list_alloc(void);
/**
* Free list of bitstream filters.
*
* @param lst Pointer to pointer returned by av_bsf_list_alloc()
*/
void av_bsf_list_free(AVBSFList **lst);
/**
* Append bitstream filter to the list of bitstream filters.
*
* @param lst List to append to
* @param bsf Filter context to be appended
*
* @return >=0 on success, negative AVERROR in case of failure
*/
int av_bsf_list_append(AVBSFList *lst, AVBSFContext *bsf);
/**
* Construct new bitstream filter context given it's name and options
* and append it to the list of bitstream filters.
*
* @param lst List to append to
* @param bsf_name Name of the bitstream filter
* @param options Options for the bitstream filter, can be set to NULL
*
* @return >=0 on success, negative AVERROR in case of failure
*/
int av_bsf_list_append2(AVBSFList *lst, const char * bsf_name, AVDictionary **options);
/**
* Finalize list of bitstream filters.
*
* This function will transform @ref AVBSFList to single @ref AVBSFContext,
* so the whole chain of bitstream filters can be treated as single filter
* freshly allocated by av_bsf_alloc().
* If the call is successful, @ref AVBSFList structure is freed and lst
* will be set to NULL. In case of failure, caller is responsible for
* freeing the structure by av_bsf_list_free()
*
* @param lst Filter list structure to be transformed
* @param[out] bsf Pointer to be set to newly created @ref AVBSFContext structure
* representing the chain of bitstream filters
*
* @return >=0 on success, negative AVERROR in case of failure
*/
int av_bsf_list_finalize(AVBSFList **lst, AVBSFContext **bsf);
/**
* Parse string describing list of bitstream filters and create single
* @ref AVBSFContext describing the whole chain of bitstream filters.
* Resulting @ref AVBSFContext can be treated as any other @ref AVBSFContext freshly
* allocated by av_bsf_alloc().
*
* @param str String describing chain of bitstream filters in format
* `bsf1[=opt1=val1:opt2=val2][,bsf2]`
* @param[out] bsf Pointer to be set to newly created @ref AVBSFContext structure
* representing the chain of bitstream filters
*
* @return >=0 on success, negative AVERROR in case of failure
*/
int av_bsf_list_parse_str(const char *str, AVBSFContext **bsf);
/**
* Get null/pass-through bitstream filter.
*
* @param[out] bsf Pointer to be set to new instance of pass-through bitstream filter
*
* @return
*/
int av_bsf_get_null_filter(AVBSFContext **bsf);
/**
* @}
*/
#endif // AVCODEC_BSF_H

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/*
* AVCodec public API
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_CODEC_H
#define AVCODEC_CODEC_H
#include <stdint.h>
#include "libavutil/avutil.h"
#include "libavutil/hwcontext.h"
#include "libavutil/log.h"
#include "libavutil/pixfmt.h"
#include "libavutil/rational.h"
#include "libavutil/samplefmt.h"
#include "libavcodec/codec_id.h"
#include "libavcodec/version_major.h"
/**
* @addtogroup lavc_core
* @{
*/
/**
* Decoder can use draw_horiz_band callback.
*/
#define AV_CODEC_CAP_DRAW_HORIZ_BAND (1 << 0)
/**
* Codec uses get_buffer() or get_encode_buffer() for allocating buffers and
* supports custom allocators.
* If not set, it might not use get_buffer() or get_encode_buffer() at all, or
* use operations that assume the buffer was allocated by
* avcodec_default_get_buffer2 or avcodec_default_get_encode_buffer.
*/
#define AV_CODEC_CAP_DR1 (1 << 1)
/**
* Encoder or decoder requires flushing with NULL input at the end in order to
* give the complete and correct output.
*
* NOTE: If this flag is not set, the codec is guaranteed to never be fed with
* with NULL data. The user can still send NULL data to the public encode
* or decode function, but libavcodec will not pass it along to the codec
* unless this flag is set.
*
* Decoders:
* The decoder has a non-zero delay and needs to be fed with avpkt->data=NULL,
* avpkt->size=0 at the end to get the delayed data until the decoder no longer
* returns frames.
*
* Encoders:
* The encoder needs to be fed with NULL data at the end of encoding until the
* encoder no longer returns data.
*
* NOTE: For encoders implementing the AVCodec.encode2() function, setting this
* flag also means that the encoder must set the pts and duration for
* each output packet. If this flag is not set, the pts and duration will
* be determined by libavcodec from the input frame.
*/
#define AV_CODEC_CAP_DELAY (1 << 5)
/**
* Codec can be fed a final frame with a smaller size.
* This can be used to prevent truncation of the last audio samples.
*/
#define AV_CODEC_CAP_SMALL_LAST_FRAME (1 << 6)
#if FF_API_SUBFRAMES
/**
* Codec can output multiple frames per AVPacket
* Normally demuxers return one frame at a time, demuxers which do not do
* are connected to a parser to split what they return into proper frames.
* This flag is reserved to the very rare category of codecs which have a
* bitstream that cannot be split into frames without timeconsuming
* operations like full decoding. Demuxers carrying such bitstreams thus
* may return multiple frames in a packet. This has many disadvantages like
* prohibiting stream copy in many cases thus it should only be considered
* as a last resort.
*/
#define AV_CODEC_CAP_SUBFRAMES (1 << 8)
#endif
/**
* Codec is experimental and is thus avoided in favor of non experimental
* encoders
*/
#define AV_CODEC_CAP_EXPERIMENTAL (1 << 9)
/**
* Codec should fill in channel configuration and samplerate instead of container
*/
#define AV_CODEC_CAP_CHANNEL_CONF (1 << 10)
/**
* Codec supports frame-level multithreading.
*/
#define AV_CODEC_CAP_FRAME_THREADS (1 << 12)
/**
* Codec supports slice-based (or partition-based) multithreading.
*/
#define AV_CODEC_CAP_SLICE_THREADS (1 << 13)
/**
* Codec supports changed parameters at any point.
*/
#define AV_CODEC_CAP_PARAM_CHANGE (1 << 14)
/**
* Codec supports multithreading through a method other than slice- or
* frame-level multithreading. Typically this marks wrappers around
* multithreading-capable external libraries.
*/
#define AV_CODEC_CAP_OTHER_THREADS (1 << 15)
/**
* Audio encoder supports receiving a different number of samples in each call.
*/
#define AV_CODEC_CAP_VARIABLE_FRAME_SIZE (1 << 16)
/**
* Decoder is not a preferred choice for probing.
* This indicates that the decoder is not a good choice for probing.
* It could for example be an expensive to spin up hardware decoder,
* or it could simply not provide a lot of useful information about
* the stream.
* A decoder marked with this flag should only be used as last resort
* choice for probing.
*/
#define AV_CODEC_CAP_AVOID_PROBING (1 << 17)
/**
* Codec is backed by a hardware implementation. Typically used to
* identify a non-hwaccel hardware decoder. For information about hwaccels, use
* avcodec_get_hw_config() instead.
*/
#define AV_CODEC_CAP_HARDWARE (1 << 18)
/**
* Codec is potentially backed by a hardware implementation, but not
* necessarily. This is used instead of AV_CODEC_CAP_HARDWARE, if the
* implementation provides some sort of internal fallback.
*/
#define AV_CODEC_CAP_HYBRID (1 << 19)
/**
* This encoder can reorder user opaque values from input AVFrames and return
* them with corresponding output packets.
* @see AV_CODEC_FLAG_COPY_OPAQUE
*/
#define AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE (1 << 20)
/**
* This encoder can be flushed using avcodec_flush_buffers(). If this flag is
* not set, the encoder must be closed and reopened to ensure that no frames
* remain pending.
*/
#define AV_CODEC_CAP_ENCODER_FLUSH (1 << 21)
/**
* The encoder is able to output reconstructed frame data, i.e. raw frames that
* would be produced by decoding the encoded bitstream.
*
* Reconstructed frame output is enabled by the AV_CODEC_FLAG_RECON_FRAME flag.
*/
#define AV_CODEC_CAP_ENCODER_RECON_FRAME (1 << 22)
/**
* AVProfile.
*/
typedef struct AVProfile {
int profile;
const char *name; ///< short name for the profile
} AVProfile;
/**
* AVCodec.
*/
typedef struct AVCodec {
/**
* Name of the codec implementation.
* The name is globally unique among encoders and among decoders (but an
* encoder and a decoder can share the same name).
* This is the primary way to find a codec from the user perspective.
*/
const char *name;
/**
* Descriptive name for the codec, meant to be more human readable than name.
* You should use the NULL_IF_CONFIG_SMALL() macro to define it.
*/
const char *long_name;
enum AVMediaType type;
enum AVCodecID id;
/**
* Codec capabilities.
* see AV_CODEC_CAP_*
*/
int capabilities;
uint8_t max_lowres; ///< maximum value for lowres supported by the decoder
const AVRational *supported_framerates; ///< array of supported framerates, or NULL if any, array is terminated by {0,0}
const enum AVPixelFormat *pix_fmts; ///< array of supported pixel formats, or NULL if unknown, array is terminated by -1
const int *supported_samplerates; ///< array of supported audio samplerates, or NULL if unknown, array is terminated by 0
const enum AVSampleFormat *sample_fmts; ///< array of supported sample formats, or NULL if unknown, array is terminated by -1
#if FF_API_OLD_CHANNEL_LAYOUT
/**
* @deprecated use ch_layouts instead
*/
attribute_deprecated
const uint64_t *channel_layouts; ///< array of support channel layouts, or NULL if unknown. array is terminated by 0
#endif
const AVClass *priv_class; ///< AVClass for the private context
const AVProfile *profiles; ///< array of recognized profiles, or NULL if unknown, array is terminated by {AV_PROFILE_UNKNOWN}
/**
* Group name of the codec implementation.
* This is a short symbolic name of the wrapper backing this codec. A
* wrapper uses some kind of external implementation for the codec, such
* as an external library, or a codec implementation provided by the OS or
* the hardware.
* If this field is NULL, this is a builtin, libavcodec native codec.
* If non-NULL, this will be the suffix in AVCodec.name in most cases
* (usually AVCodec.name will be of the form "<codec_name>_<wrapper_name>").
*/
const char *wrapper_name;
/**
* Array of supported channel layouts, terminated with a zeroed layout.
*/
const AVChannelLayout *ch_layouts;
} AVCodec;
/**
* Iterate over all registered codecs.
*
* @param opaque a pointer where libavcodec will store the iteration state. Must
* point to NULL to start the iteration.
*
* @return the next registered codec or NULL when the iteration is
* finished
*/
const AVCodec *av_codec_iterate(void **opaque);
/**
* Find a registered decoder with a matching codec ID.
*
* @param id AVCodecID of the requested decoder
* @return A decoder if one was found, NULL otherwise.
*/
const AVCodec *avcodec_find_decoder(enum AVCodecID id);
/**
* Find a registered decoder with the specified name.
*
* @param name name of the requested decoder
* @return A decoder if one was found, NULL otherwise.
*/
const AVCodec *avcodec_find_decoder_by_name(const char *name);
/**
* Find a registered encoder with a matching codec ID.
*
* @param id AVCodecID of the requested encoder
* @return An encoder if one was found, NULL otherwise.
*/
const AVCodec *avcodec_find_encoder(enum AVCodecID id);
/**
* Find a registered encoder with the specified name.
*
* @param name name of the requested encoder
* @return An encoder if one was found, NULL otherwise.
*/
const AVCodec *avcodec_find_encoder_by_name(const char *name);
/**
* @return a non-zero number if codec is an encoder, zero otherwise
*/
int av_codec_is_encoder(const AVCodec *codec);
/**
* @return a non-zero number if codec is a decoder, zero otherwise
*/
int av_codec_is_decoder(const AVCodec *codec);
/**
* Return a name for the specified profile, if available.
*
* @param codec the codec that is searched for the given profile
* @param profile the profile value for which a name is requested
* @return A name for the profile if found, NULL otherwise.
*/
const char *av_get_profile_name(const AVCodec *codec, int profile);
enum {
/**
* The codec supports this format via the hw_device_ctx interface.
*
* When selecting this format, AVCodecContext.hw_device_ctx should
* have been set to a device of the specified type before calling
* avcodec_open2().
*/
AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX = 0x01,
/**
* The codec supports this format via the hw_frames_ctx interface.
*
* When selecting this format for a decoder,
* AVCodecContext.hw_frames_ctx should be set to a suitable frames
* context inside the get_format() callback. The frames context
* must have been created on a device of the specified type.
*
* When selecting this format for an encoder,
* AVCodecContext.hw_frames_ctx should be set to the context which
* will be used for the input frames before calling avcodec_open2().
*/
AV_CODEC_HW_CONFIG_METHOD_HW_FRAMES_CTX = 0x02,
/**
* The codec supports this format by some internal method.
*
* This format can be selected without any additional configuration -
* no device or frames context is required.
*/
AV_CODEC_HW_CONFIG_METHOD_INTERNAL = 0x04,
/**
* The codec supports this format by some ad-hoc method.
*
* Additional settings and/or function calls are required. See the
* codec-specific documentation for details. (Methods requiring
* this sort of configuration are deprecated and others should be
* used in preference.)
*/
AV_CODEC_HW_CONFIG_METHOD_AD_HOC = 0x08,
};
typedef struct AVCodecHWConfig {
/**
* For decoders, a hardware pixel format which that decoder may be
* able to decode to if suitable hardware is available.
*
* For encoders, a pixel format which the encoder may be able to
* accept. If set to AV_PIX_FMT_NONE, this applies to all pixel
* formats supported by the codec.
*/
enum AVPixelFormat pix_fmt;
/**
* Bit set of AV_CODEC_HW_CONFIG_METHOD_* flags, describing the possible
* setup methods which can be used with this configuration.
*/
int methods;
/**
* The device type associated with the configuration.
*
* Must be set for AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX and
* AV_CODEC_HW_CONFIG_METHOD_HW_FRAMES_CTX, otherwise unused.
*/
enum AVHWDeviceType device_type;
} AVCodecHWConfig;
/**
* Retrieve supported hardware configurations for a codec.
*
* Values of index from zero to some maximum return the indexed configuration
* descriptor; all other values return NULL. If the codec does not support
* any hardware configurations then it will always return NULL.
*/
const AVCodecHWConfig *avcodec_get_hw_config(const AVCodec *codec, int index);
/**
* @}
*/
#endif /* AVCODEC_CODEC_H */

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/*
* Codec descriptors public API
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_CODEC_DESC_H
#define AVCODEC_CODEC_DESC_H
#include "libavutil/avutil.h"
#include "codec_id.h"
/**
* @addtogroup lavc_core
* @{
*/
/**
* This struct describes the properties of a single codec described by an
* AVCodecID.
* @see avcodec_descriptor_get()
*/
typedef struct AVCodecDescriptor {
enum AVCodecID id;
enum AVMediaType type;
/**
* Name of the codec described by this descriptor. It is non-empty and
* unique for each codec descriptor. It should contain alphanumeric
* characters and '_' only.
*/
const char *name;
/**
* A more descriptive name for this codec. May be NULL.
*/
const char *long_name;
/**
* Codec properties, a combination of AV_CODEC_PROP_* flags.
*/
int props;
/**
* MIME type(s) associated with the codec.
* May be NULL; if not, a NULL-terminated array of MIME types.
* The first item is always non-NULL and is the preferred MIME type.
*/
const char *const *mime_types;
/**
* If non-NULL, an array of profiles recognized for this codec.
* Terminated with AV_PROFILE_UNKNOWN.
*/
const struct AVProfile *profiles;
} AVCodecDescriptor;
/**
* Codec uses only intra compression.
* Video and audio codecs only.
*/
#define AV_CODEC_PROP_INTRA_ONLY (1 << 0)
/**
* Codec supports lossy compression. Audio and video codecs only.
* @note a codec may support both lossy and lossless
* compression modes
*/
#define AV_CODEC_PROP_LOSSY (1 << 1)
/**
* Codec supports lossless compression. Audio and video codecs only.
*/
#define AV_CODEC_PROP_LOSSLESS (1 << 2)
/**
* Codec supports frame reordering. That is, the coded order (the order in which
* the encoded packets are output by the encoders / stored / input to the
* decoders) may be different from the presentation order of the corresponding
* frames.
*
* For codecs that do not have this property set, PTS and DTS should always be
* equal.
*/
#define AV_CODEC_PROP_REORDER (1 << 3)
/**
* Video codec supports separate coding of fields in interlaced frames.
*/
#define AV_CODEC_PROP_FIELDS (1 << 4)
/**
* Subtitle codec is bitmap based
* Decoded AVSubtitle data can be read from the AVSubtitleRect->pict field.
*/
#define AV_CODEC_PROP_BITMAP_SUB (1 << 16)
/**
* Subtitle codec is text based.
* Decoded AVSubtitle data can be read from the AVSubtitleRect->ass field.
*/
#define AV_CODEC_PROP_TEXT_SUB (1 << 17)
/**
* @return descriptor for given codec ID or NULL if no descriptor exists.
*/
const AVCodecDescriptor *avcodec_descriptor_get(enum AVCodecID id);
/**
* Iterate over all codec descriptors known to libavcodec.
*
* @param prev previous descriptor. NULL to get the first descriptor.
*
* @return next descriptor or NULL after the last descriptor
*/
const AVCodecDescriptor *avcodec_descriptor_next(const AVCodecDescriptor *prev);
/**
* @return codec descriptor with the given name or NULL if no such descriptor
* exists.
*/
const AVCodecDescriptor *avcodec_descriptor_get_by_name(const char *name);
/**
* @}
*/
#endif // AVCODEC_CODEC_DESC_H

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/*
* Codec IDs
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_CODEC_ID_H
#define AVCODEC_CODEC_ID_H
#include "libavutil/avutil.h"
#include "libavutil/samplefmt.h"
#include "version_major.h"
/**
* @addtogroup lavc_core
* @{
*/
/**
* Identify the syntax and semantics of the bitstream.
* The principle is roughly:
* Two decoders with the same ID can decode the same streams.
* Two encoders with the same ID can encode compatible streams.
* There may be slight deviations from the principle due to implementation
* details.
*
* If you add a codec ID to this list, add it so that
* 1. no value of an existing codec ID changes (that would break ABI),
* 2. it is as close as possible to similar codecs
*
* After adding new codec IDs, do not forget to add an entry to the codec
* descriptor list and bump libavcodec minor version.
*/
enum AVCodecID {
AV_CODEC_ID_NONE,
/* video codecs */
AV_CODEC_ID_MPEG1VIDEO,
AV_CODEC_ID_MPEG2VIDEO, ///< preferred ID for MPEG-1/2 video decoding
AV_CODEC_ID_H261,
AV_CODEC_ID_H263,
AV_CODEC_ID_RV10,
AV_CODEC_ID_RV20,
AV_CODEC_ID_MJPEG,
AV_CODEC_ID_MJPEGB,
AV_CODEC_ID_LJPEG,
AV_CODEC_ID_SP5X,
AV_CODEC_ID_JPEGLS,
AV_CODEC_ID_MPEG4,
AV_CODEC_ID_RAWVIDEO,
AV_CODEC_ID_MSMPEG4V1,
AV_CODEC_ID_MSMPEG4V2,
AV_CODEC_ID_MSMPEG4V3,
AV_CODEC_ID_WMV1,
AV_CODEC_ID_WMV2,
AV_CODEC_ID_H263P,
AV_CODEC_ID_H263I,
AV_CODEC_ID_FLV1,
AV_CODEC_ID_SVQ1,
AV_CODEC_ID_SVQ3,
AV_CODEC_ID_DVVIDEO,
AV_CODEC_ID_HUFFYUV,
AV_CODEC_ID_CYUV,
AV_CODEC_ID_H264,
AV_CODEC_ID_INDEO3,
AV_CODEC_ID_VP3,
AV_CODEC_ID_THEORA,
AV_CODEC_ID_ASV1,
AV_CODEC_ID_ASV2,
AV_CODEC_ID_FFV1,
AV_CODEC_ID_4XM,
AV_CODEC_ID_VCR1,
AV_CODEC_ID_CLJR,
AV_CODEC_ID_MDEC,
AV_CODEC_ID_ROQ,
AV_CODEC_ID_INTERPLAY_VIDEO,
AV_CODEC_ID_XAN_WC3,
AV_CODEC_ID_XAN_WC4,
AV_CODEC_ID_RPZA,
AV_CODEC_ID_CINEPAK,
AV_CODEC_ID_WS_VQA,
AV_CODEC_ID_MSRLE,
AV_CODEC_ID_MSVIDEO1,
AV_CODEC_ID_IDCIN,
AV_CODEC_ID_8BPS,
AV_CODEC_ID_SMC,
AV_CODEC_ID_FLIC,
AV_CODEC_ID_TRUEMOTION1,
AV_CODEC_ID_VMDVIDEO,
AV_CODEC_ID_MSZH,
AV_CODEC_ID_ZLIB,
AV_CODEC_ID_QTRLE,
AV_CODEC_ID_TSCC,
AV_CODEC_ID_ULTI,
AV_CODEC_ID_QDRAW,
AV_CODEC_ID_VIXL,
AV_CODEC_ID_QPEG,
AV_CODEC_ID_PNG,
AV_CODEC_ID_PPM,
AV_CODEC_ID_PBM,
AV_CODEC_ID_PGM,
AV_CODEC_ID_PGMYUV,
AV_CODEC_ID_PAM,
AV_CODEC_ID_FFVHUFF,
AV_CODEC_ID_RV30,
AV_CODEC_ID_RV40,
AV_CODEC_ID_VC1,
AV_CODEC_ID_WMV3,
AV_CODEC_ID_LOCO,
AV_CODEC_ID_WNV1,
AV_CODEC_ID_AASC,
AV_CODEC_ID_INDEO2,
AV_CODEC_ID_FRAPS,
AV_CODEC_ID_TRUEMOTION2,
AV_CODEC_ID_BMP,
AV_CODEC_ID_CSCD,
AV_CODEC_ID_MMVIDEO,
AV_CODEC_ID_ZMBV,
AV_CODEC_ID_AVS,
AV_CODEC_ID_SMACKVIDEO,
AV_CODEC_ID_NUV,
AV_CODEC_ID_KMVC,
AV_CODEC_ID_FLASHSV,
AV_CODEC_ID_CAVS,
AV_CODEC_ID_JPEG2000,
AV_CODEC_ID_VMNC,
AV_CODEC_ID_VP5,
AV_CODEC_ID_VP6,
AV_CODEC_ID_VP6F,
AV_CODEC_ID_TARGA,
AV_CODEC_ID_DSICINVIDEO,
AV_CODEC_ID_TIERTEXSEQVIDEO,
AV_CODEC_ID_TIFF,
AV_CODEC_ID_GIF,
AV_CODEC_ID_DXA,
AV_CODEC_ID_DNXHD,
AV_CODEC_ID_THP,
AV_CODEC_ID_SGI,
AV_CODEC_ID_C93,
AV_CODEC_ID_BETHSOFTVID,
AV_CODEC_ID_PTX,
AV_CODEC_ID_TXD,
AV_CODEC_ID_VP6A,
AV_CODEC_ID_AMV,
AV_CODEC_ID_VB,
AV_CODEC_ID_PCX,
AV_CODEC_ID_SUNRAST,
AV_CODEC_ID_INDEO4,
AV_CODEC_ID_INDEO5,
AV_CODEC_ID_MIMIC,
AV_CODEC_ID_RL2,
AV_CODEC_ID_ESCAPE124,
AV_CODEC_ID_DIRAC,
AV_CODEC_ID_BFI,
AV_CODEC_ID_CMV,
AV_CODEC_ID_MOTIONPIXELS,
AV_CODEC_ID_TGV,
AV_CODEC_ID_TGQ,
AV_CODEC_ID_TQI,
AV_CODEC_ID_AURA,
AV_CODEC_ID_AURA2,
AV_CODEC_ID_V210X,
AV_CODEC_ID_TMV,
AV_CODEC_ID_V210,
AV_CODEC_ID_DPX,
AV_CODEC_ID_MAD,
AV_CODEC_ID_FRWU,
AV_CODEC_ID_FLASHSV2,
AV_CODEC_ID_CDGRAPHICS,
AV_CODEC_ID_R210,
AV_CODEC_ID_ANM,
AV_CODEC_ID_BINKVIDEO,
AV_CODEC_ID_IFF_ILBM,
#define AV_CODEC_ID_IFF_BYTERUN1 AV_CODEC_ID_IFF_ILBM
AV_CODEC_ID_KGV1,
AV_CODEC_ID_YOP,
AV_CODEC_ID_VP8,
AV_CODEC_ID_PICTOR,
AV_CODEC_ID_ANSI,
AV_CODEC_ID_A64_MULTI,
AV_CODEC_ID_A64_MULTI5,
AV_CODEC_ID_R10K,
AV_CODEC_ID_MXPEG,
AV_CODEC_ID_LAGARITH,
AV_CODEC_ID_PRORES,
AV_CODEC_ID_JV,
AV_CODEC_ID_DFA,
AV_CODEC_ID_WMV3IMAGE,
AV_CODEC_ID_VC1IMAGE,
AV_CODEC_ID_UTVIDEO,
AV_CODEC_ID_BMV_VIDEO,
AV_CODEC_ID_VBLE,
AV_CODEC_ID_DXTORY,
AV_CODEC_ID_V410,
AV_CODEC_ID_XWD,
AV_CODEC_ID_CDXL,
AV_CODEC_ID_XBM,
AV_CODEC_ID_ZEROCODEC,
AV_CODEC_ID_MSS1,
AV_CODEC_ID_MSA1,
AV_CODEC_ID_TSCC2,
AV_CODEC_ID_MTS2,
AV_CODEC_ID_CLLC,
AV_CODEC_ID_MSS2,
AV_CODEC_ID_VP9,
AV_CODEC_ID_AIC,
AV_CODEC_ID_ESCAPE130,
AV_CODEC_ID_G2M,
AV_CODEC_ID_WEBP,
AV_CODEC_ID_HNM4_VIDEO,
AV_CODEC_ID_HEVC,
#define AV_CODEC_ID_H265 AV_CODEC_ID_HEVC
AV_CODEC_ID_FIC,
AV_CODEC_ID_ALIAS_PIX,
AV_CODEC_ID_BRENDER_PIX,
AV_CODEC_ID_PAF_VIDEO,
AV_CODEC_ID_EXR,
AV_CODEC_ID_VP7,
AV_CODEC_ID_SANM,
AV_CODEC_ID_SGIRLE,
AV_CODEC_ID_MVC1,
AV_CODEC_ID_MVC2,
AV_CODEC_ID_HQX,
AV_CODEC_ID_TDSC,
AV_CODEC_ID_HQ_HQA,
AV_CODEC_ID_HAP,
AV_CODEC_ID_DDS,
AV_CODEC_ID_DXV,
AV_CODEC_ID_SCREENPRESSO,
AV_CODEC_ID_RSCC,
AV_CODEC_ID_AVS2,
AV_CODEC_ID_PGX,
AV_CODEC_ID_AVS3,
AV_CODEC_ID_MSP2,
AV_CODEC_ID_VVC,
#define AV_CODEC_ID_H266 AV_CODEC_ID_VVC
AV_CODEC_ID_Y41P,
AV_CODEC_ID_AVRP,
AV_CODEC_ID_012V,
AV_CODEC_ID_AVUI,
#if FF_API_AYUV_CODECID
AV_CODEC_ID_AYUV,
#endif
AV_CODEC_ID_TARGA_Y216,
AV_CODEC_ID_V308,
AV_CODEC_ID_V408,
AV_CODEC_ID_YUV4,
AV_CODEC_ID_AVRN,
AV_CODEC_ID_CPIA,
AV_CODEC_ID_XFACE,
AV_CODEC_ID_SNOW,
AV_CODEC_ID_SMVJPEG,
AV_CODEC_ID_APNG,
AV_CODEC_ID_DAALA,
AV_CODEC_ID_CFHD,
AV_CODEC_ID_TRUEMOTION2RT,
AV_CODEC_ID_M101,
AV_CODEC_ID_MAGICYUV,
AV_CODEC_ID_SHEERVIDEO,
AV_CODEC_ID_YLC,
AV_CODEC_ID_PSD,
AV_CODEC_ID_PIXLET,
AV_CODEC_ID_SPEEDHQ,
AV_CODEC_ID_FMVC,
AV_CODEC_ID_SCPR,
AV_CODEC_ID_CLEARVIDEO,
AV_CODEC_ID_XPM,
AV_CODEC_ID_AV1,
AV_CODEC_ID_BITPACKED,
AV_CODEC_ID_MSCC,
AV_CODEC_ID_SRGC,
AV_CODEC_ID_SVG,
AV_CODEC_ID_GDV,
AV_CODEC_ID_FITS,
AV_CODEC_ID_IMM4,
AV_CODEC_ID_PROSUMER,
AV_CODEC_ID_MWSC,
AV_CODEC_ID_WCMV,
AV_CODEC_ID_RASC,
AV_CODEC_ID_HYMT,
AV_CODEC_ID_ARBC,
AV_CODEC_ID_AGM,
AV_CODEC_ID_LSCR,
AV_CODEC_ID_VP4,
AV_CODEC_ID_IMM5,
AV_CODEC_ID_MVDV,
AV_CODEC_ID_MVHA,
AV_CODEC_ID_CDTOONS,
AV_CODEC_ID_MV30,
AV_CODEC_ID_NOTCHLC,
AV_CODEC_ID_PFM,
AV_CODEC_ID_MOBICLIP,
AV_CODEC_ID_PHOTOCD,
AV_CODEC_ID_IPU,
AV_CODEC_ID_ARGO,
AV_CODEC_ID_CRI,
AV_CODEC_ID_SIMBIOSIS_IMX,
AV_CODEC_ID_SGA_VIDEO,
AV_CODEC_ID_GEM,
AV_CODEC_ID_VBN,
AV_CODEC_ID_JPEGXL,
AV_CODEC_ID_QOI,
AV_CODEC_ID_PHM,
AV_CODEC_ID_RADIANCE_HDR,
AV_CODEC_ID_WBMP,
AV_CODEC_ID_MEDIA100,
AV_CODEC_ID_VQC,
AV_CODEC_ID_PDV,
AV_CODEC_ID_EVC,
AV_CODEC_ID_RTV1,
AV_CODEC_ID_VMIX,
/* various PCM "codecs" */
AV_CODEC_ID_FIRST_AUDIO = 0x10000, ///< A dummy id pointing at the start of audio codecs
AV_CODEC_ID_PCM_S16LE = 0x10000,
AV_CODEC_ID_PCM_S16BE,
AV_CODEC_ID_PCM_U16LE,
AV_CODEC_ID_PCM_U16BE,
AV_CODEC_ID_PCM_S8,
AV_CODEC_ID_PCM_U8,
AV_CODEC_ID_PCM_MULAW,
AV_CODEC_ID_PCM_ALAW,
AV_CODEC_ID_PCM_S32LE,
AV_CODEC_ID_PCM_S32BE,
AV_CODEC_ID_PCM_U32LE,
AV_CODEC_ID_PCM_U32BE,
AV_CODEC_ID_PCM_S24LE,
AV_CODEC_ID_PCM_S24BE,
AV_CODEC_ID_PCM_U24LE,
AV_CODEC_ID_PCM_U24BE,
AV_CODEC_ID_PCM_S24DAUD,
AV_CODEC_ID_PCM_ZORK,
AV_CODEC_ID_PCM_S16LE_PLANAR,
AV_CODEC_ID_PCM_DVD,
AV_CODEC_ID_PCM_F32BE,
AV_CODEC_ID_PCM_F32LE,
AV_CODEC_ID_PCM_F64BE,
AV_CODEC_ID_PCM_F64LE,
AV_CODEC_ID_PCM_BLURAY,
AV_CODEC_ID_PCM_LXF,
AV_CODEC_ID_S302M,
AV_CODEC_ID_PCM_S8_PLANAR,
AV_CODEC_ID_PCM_S24LE_PLANAR,
AV_CODEC_ID_PCM_S32LE_PLANAR,
AV_CODEC_ID_PCM_S16BE_PLANAR,
AV_CODEC_ID_PCM_S64LE,
AV_CODEC_ID_PCM_S64BE,
AV_CODEC_ID_PCM_F16LE,
AV_CODEC_ID_PCM_F24LE,
AV_CODEC_ID_PCM_VIDC,
AV_CODEC_ID_PCM_SGA,
/* various ADPCM codecs */
AV_CODEC_ID_ADPCM_IMA_QT = 0x11000,
AV_CODEC_ID_ADPCM_IMA_WAV,
AV_CODEC_ID_ADPCM_IMA_DK3,
AV_CODEC_ID_ADPCM_IMA_DK4,
AV_CODEC_ID_ADPCM_IMA_WS,
AV_CODEC_ID_ADPCM_IMA_SMJPEG,
AV_CODEC_ID_ADPCM_MS,
AV_CODEC_ID_ADPCM_4XM,
AV_CODEC_ID_ADPCM_XA,
AV_CODEC_ID_ADPCM_ADX,
AV_CODEC_ID_ADPCM_EA,
AV_CODEC_ID_ADPCM_G726,
AV_CODEC_ID_ADPCM_CT,
AV_CODEC_ID_ADPCM_SWF,
AV_CODEC_ID_ADPCM_YAMAHA,
AV_CODEC_ID_ADPCM_SBPRO_4,
AV_CODEC_ID_ADPCM_SBPRO_3,
AV_CODEC_ID_ADPCM_SBPRO_2,
AV_CODEC_ID_ADPCM_THP,
AV_CODEC_ID_ADPCM_IMA_AMV,
AV_CODEC_ID_ADPCM_EA_R1,
AV_CODEC_ID_ADPCM_EA_R3,
AV_CODEC_ID_ADPCM_EA_R2,
AV_CODEC_ID_ADPCM_IMA_EA_SEAD,
AV_CODEC_ID_ADPCM_IMA_EA_EACS,
AV_CODEC_ID_ADPCM_EA_XAS,
AV_CODEC_ID_ADPCM_EA_MAXIS_XA,
AV_CODEC_ID_ADPCM_IMA_ISS,
AV_CODEC_ID_ADPCM_G722,
AV_CODEC_ID_ADPCM_IMA_APC,
AV_CODEC_ID_ADPCM_VIMA,
AV_CODEC_ID_ADPCM_AFC,
AV_CODEC_ID_ADPCM_IMA_OKI,
AV_CODEC_ID_ADPCM_DTK,
AV_CODEC_ID_ADPCM_IMA_RAD,
AV_CODEC_ID_ADPCM_G726LE,
AV_CODEC_ID_ADPCM_THP_LE,
AV_CODEC_ID_ADPCM_PSX,
AV_CODEC_ID_ADPCM_AICA,
AV_CODEC_ID_ADPCM_IMA_DAT4,
AV_CODEC_ID_ADPCM_MTAF,
AV_CODEC_ID_ADPCM_AGM,
AV_CODEC_ID_ADPCM_ARGO,
AV_CODEC_ID_ADPCM_IMA_SSI,
AV_CODEC_ID_ADPCM_ZORK,
AV_CODEC_ID_ADPCM_IMA_APM,
AV_CODEC_ID_ADPCM_IMA_ALP,
AV_CODEC_ID_ADPCM_IMA_MTF,
AV_CODEC_ID_ADPCM_IMA_CUNNING,
AV_CODEC_ID_ADPCM_IMA_MOFLEX,
AV_CODEC_ID_ADPCM_IMA_ACORN,
AV_CODEC_ID_ADPCM_XMD,
/* AMR */
AV_CODEC_ID_AMR_NB = 0x12000,
AV_CODEC_ID_AMR_WB,
/* RealAudio codecs*/
AV_CODEC_ID_RA_144 = 0x13000,
AV_CODEC_ID_RA_288,
/* various DPCM codecs */
AV_CODEC_ID_ROQ_DPCM = 0x14000,
AV_CODEC_ID_INTERPLAY_DPCM,
AV_CODEC_ID_XAN_DPCM,
AV_CODEC_ID_SOL_DPCM,
AV_CODEC_ID_SDX2_DPCM,
AV_CODEC_ID_GREMLIN_DPCM,
AV_CODEC_ID_DERF_DPCM,
AV_CODEC_ID_WADY_DPCM,
AV_CODEC_ID_CBD2_DPCM,
/* audio codecs */
AV_CODEC_ID_MP2 = 0x15000,
AV_CODEC_ID_MP3, ///< preferred ID for decoding MPEG audio layer 1, 2 or 3
AV_CODEC_ID_AAC,
AV_CODEC_ID_AC3,
AV_CODEC_ID_DTS,
AV_CODEC_ID_VORBIS,
AV_CODEC_ID_DVAUDIO,
AV_CODEC_ID_WMAV1,
AV_CODEC_ID_WMAV2,
AV_CODEC_ID_MACE3,
AV_CODEC_ID_MACE6,
AV_CODEC_ID_VMDAUDIO,
AV_CODEC_ID_FLAC,
AV_CODEC_ID_MP3ADU,
AV_CODEC_ID_MP3ON4,
AV_CODEC_ID_SHORTEN,
AV_CODEC_ID_ALAC,
AV_CODEC_ID_WESTWOOD_SND1,
AV_CODEC_ID_GSM, ///< as in Berlin toast format
AV_CODEC_ID_QDM2,
AV_CODEC_ID_COOK,
AV_CODEC_ID_TRUESPEECH,
AV_CODEC_ID_TTA,
AV_CODEC_ID_SMACKAUDIO,
AV_CODEC_ID_QCELP,
AV_CODEC_ID_WAVPACK,
AV_CODEC_ID_DSICINAUDIO,
AV_CODEC_ID_IMC,
AV_CODEC_ID_MUSEPACK7,
AV_CODEC_ID_MLP,
AV_CODEC_ID_GSM_MS, /* as found in WAV */
AV_CODEC_ID_ATRAC3,
AV_CODEC_ID_APE,
AV_CODEC_ID_NELLYMOSER,
AV_CODEC_ID_MUSEPACK8,
AV_CODEC_ID_SPEEX,
AV_CODEC_ID_WMAVOICE,
AV_CODEC_ID_WMAPRO,
AV_CODEC_ID_WMALOSSLESS,
AV_CODEC_ID_ATRAC3P,
AV_CODEC_ID_EAC3,
AV_CODEC_ID_SIPR,
AV_CODEC_ID_MP1,
AV_CODEC_ID_TWINVQ,
AV_CODEC_ID_TRUEHD,
AV_CODEC_ID_MP4ALS,
AV_CODEC_ID_ATRAC1,
AV_CODEC_ID_BINKAUDIO_RDFT,
AV_CODEC_ID_BINKAUDIO_DCT,
AV_CODEC_ID_AAC_LATM,
AV_CODEC_ID_QDMC,
AV_CODEC_ID_CELT,
AV_CODEC_ID_G723_1,
AV_CODEC_ID_G729,
AV_CODEC_ID_8SVX_EXP,
AV_CODEC_ID_8SVX_FIB,
AV_CODEC_ID_BMV_AUDIO,
AV_CODEC_ID_RALF,
AV_CODEC_ID_IAC,
AV_CODEC_ID_ILBC,
AV_CODEC_ID_OPUS,
AV_CODEC_ID_COMFORT_NOISE,
AV_CODEC_ID_TAK,
AV_CODEC_ID_METASOUND,
AV_CODEC_ID_PAF_AUDIO,
AV_CODEC_ID_ON2AVC,
AV_CODEC_ID_DSS_SP,
AV_CODEC_ID_CODEC2,
AV_CODEC_ID_FFWAVESYNTH,
AV_CODEC_ID_SONIC,
AV_CODEC_ID_SONIC_LS,
AV_CODEC_ID_EVRC,
AV_CODEC_ID_SMV,
AV_CODEC_ID_DSD_LSBF,
AV_CODEC_ID_DSD_MSBF,
AV_CODEC_ID_DSD_LSBF_PLANAR,
AV_CODEC_ID_DSD_MSBF_PLANAR,
AV_CODEC_ID_4GV,
AV_CODEC_ID_INTERPLAY_ACM,
AV_CODEC_ID_XMA1,
AV_CODEC_ID_XMA2,
AV_CODEC_ID_DST,
AV_CODEC_ID_ATRAC3AL,
AV_CODEC_ID_ATRAC3PAL,
AV_CODEC_ID_DOLBY_E,
AV_CODEC_ID_APTX,
AV_CODEC_ID_APTX_HD,
AV_CODEC_ID_SBC,
AV_CODEC_ID_ATRAC9,
AV_CODEC_ID_HCOM,
AV_CODEC_ID_ACELP_KELVIN,
AV_CODEC_ID_MPEGH_3D_AUDIO,
AV_CODEC_ID_SIREN,
AV_CODEC_ID_HCA,
AV_CODEC_ID_FASTAUDIO,
AV_CODEC_ID_MSNSIREN,
AV_CODEC_ID_DFPWM,
AV_CODEC_ID_BONK,
AV_CODEC_ID_MISC4,
AV_CODEC_ID_APAC,
AV_CODEC_ID_FTR,
AV_CODEC_ID_WAVARC,
AV_CODEC_ID_RKA,
AV_CODEC_ID_AC4,
AV_CODEC_ID_OSQ,
/* subtitle codecs */
AV_CODEC_ID_FIRST_SUBTITLE = 0x17000, ///< A dummy ID pointing at the start of subtitle codecs.
AV_CODEC_ID_DVD_SUBTITLE = 0x17000,
AV_CODEC_ID_DVB_SUBTITLE,
AV_CODEC_ID_TEXT, ///< raw UTF-8 text
AV_CODEC_ID_XSUB,
AV_CODEC_ID_SSA,
AV_CODEC_ID_MOV_TEXT,
AV_CODEC_ID_HDMV_PGS_SUBTITLE,
AV_CODEC_ID_DVB_TELETEXT,
AV_CODEC_ID_SRT,
AV_CODEC_ID_MICRODVD,
AV_CODEC_ID_EIA_608,
AV_CODEC_ID_JACOSUB,
AV_CODEC_ID_SAMI,
AV_CODEC_ID_REALTEXT,
AV_CODEC_ID_STL,
AV_CODEC_ID_SUBVIEWER1,
AV_CODEC_ID_SUBVIEWER,
AV_CODEC_ID_SUBRIP,
AV_CODEC_ID_WEBVTT,
AV_CODEC_ID_MPL2,
AV_CODEC_ID_VPLAYER,
AV_CODEC_ID_PJS,
AV_CODEC_ID_ASS,
AV_CODEC_ID_HDMV_TEXT_SUBTITLE,
AV_CODEC_ID_TTML,
AV_CODEC_ID_ARIB_CAPTION,
/* other specific kind of codecs (generally used for attachments) */
AV_CODEC_ID_FIRST_UNKNOWN = 0x18000, ///< A dummy ID pointing at the start of various fake codecs.
AV_CODEC_ID_TTF = 0x18000,
AV_CODEC_ID_SCTE_35, ///< Contain timestamp estimated through PCR of program stream.
AV_CODEC_ID_EPG,
AV_CODEC_ID_BINTEXT,
AV_CODEC_ID_XBIN,
AV_CODEC_ID_IDF,
AV_CODEC_ID_OTF,
AV_CODEC_ID_SMPTE_KLV,
AV_CODEC_ID_DVD_NAV,
AV_CODEC_ID_TIMED_ID3,
AV_CODEC_ID_BIN_DATA,
AV_CODEC_ID_SMPTE_2038,
AV_CODEC_ID_PROBE = 0x19000, ///< codec_id is not known (like AV_CODEC_ID_NONE) but lavf should attempt to identify it
AV_CODEC_ID_MPEG2TS = 0x20000, /**< _FAKE_ codec to indicate a raw MPEG-2 TS
* stream (only used by libavformat) */
AV_CODEC_ID_MPEG4SYSTEMS = 0x20001, /**< _FAKE_ codec to indicate a MPEG-4 Systems
* stream (only used by libavformat) */
AV_CODEC_ID_FFMETADATA = 0x21000, ///< Dummy codec for streams containing only metadata information.
AV_CODEC_ID_WRAPPED_AVFRAME = 0x21001, ///< Passthrough codec, AVFrames wrapped in AVPacket
/**
* Dummy null video codec, useful mainly for development and debugging.
* Null encoder/decoder discard all input and never return any output.
*/
AV_CODEC_ID_VNULL,
/**
* Dummy null audio codec, useful mainly for development and debugging.
* Null encoder/decoder discard all input and never return any output.
*/
AV_CODEC_ID_ANULL,
};
/**
* Get the type of the given codec.
*/
enum AVMediaType avcodec_get_type(enum AVCodecID codec_id);
/**
* Get the name of a codec.
* @return a static string identifying the codec; never NULL
*/
const char *avcodec_get_name(enum AVCodecID id);
/**
* Return codec bits per sample.
*
* @param[in] codec_id the codec
* @return Number of bits per sample or zero if unknown for the given codec.
*/
int av_get_bits_per_sample(enum AVCodecID codec_id);
/**
* Return codec bits per sample.
* Only return non-zero if the bits per sample is exactly correct, not an
* approximation.
*
* @param[in] codec_id the codec
* @return Number of bits per sample or zero if unknown for the given codec.
*/
int av_get_exact_bits_per_sample(enum AVCodecID codec_id);
/**
* Return a name for the specified profile, if available.
*
* @param codec_id the ID of the codec to which the requested profile belongs
* @param profile the profile value for which a name is requested
* @return A name for the profile if found, NULL otherwise.
*
* @note unlike av_get_profile_name(), which searches a list of profiles
* supported by a specific decoder or encoder implementation, this
* function searches the list of profiles from the AVCodecDescriptor
*/
const char *avcodec_profile_name(enum AVCodecID codec_id, int profile);
/**
* Return the PCM codec associated with a sample format.
* @param be endianness, 0 for little, 1 for big,
* -1 (or anything else) for native
* @return AV_CODEC_ID_PCM_* or AV_CODEC_ID_NONE
*/
enum AVCodecID av_get_pcm_codec(enum AVSampleFormat fmt, int be);
/**
* @}
*/
#endif // AVCODEC_CODEC_ID_H

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/*
* Codec parameters public API
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_CODEC_PAR_H
#define AVCODEC_CODEC_PAR_H
#include <stdint.h>
#include "libavutil/avutil.h"
#include "libavutil/channel_layout.h"
#include "libavutil/rational.h"
#include "libavutil/pixfmt.h"
#include "codec_id.h"
#include "defs.h"
#include "packet.h"
/**
* @addtogroup lavc_core
* @{
*/
/**
* This struct describes the properties of an encoded stream.
*
* sizeof(AVCodecParameters) is not a part of the public ABI, this struct must
* be allocated with avcodec_parameters_alloc() and freed with
* avcodec_parameters_free().
*/
typedef struct AVCodecParameters {
/**
* General type of the encoded data.
*/
enum AVMediaType codec_type;
/**
* Specific type of the encoded data (the codec used).
*/
enum AVCodecID codec_id;
/**
* Additional information about the codec (corresponds to the AVI FOURCC).
*/
uint32_t codec_tag;
/**
* Extra binary data needed for initializing the decoder, codec-dependent.
*
* Must be allocated with av_malloc() and will be freed by
* avcodec_parameters_free(). The allocated size of extradata must be at
* least extradata_size + AV_INPUT_BUFFER_PADDING_SIZE, with the padding
* bytes zeroed.
*/
uint8_t *extradata;
/**
* Size of the extradata content in bytes.
*/
int extradata_size;
/**
* - video: the pixel format, the value corresponds to enum AVPixelFormat.
* - audio: the sample format, the value corresponds to enum AVSampleFormat.
*/
int format;
/**
* The average bitrate of the encoded data (in bits per second).
*/
int64_t bit_rate;
/**
* The number of bits per sample in the codedwords.
*
* This is basically the bitrate per sample. It is mandatory for a bunch of
* formats to actually decode them. It's the number of bits for one sample in
* the actual coded bitstream.
*
* This could be for example 4 for ADPCM
* For PCM formats this matches bits_per_raw_sample
* Can be 0
*/
int bits_per_coded_sample;
/**
* This is the number of valid bits in each output sample. If the
* sample format has more bits, the least significant bits are additional
* padding bits, which are always 0. Use right shifts to reduce the sample
* to its actual size. For example, audio formats with 24 bit samples will
* have bits_per_raw_sample set to 24, and format set to AV_SAMPLE_FMT_S32.
* To get the original sample use "(int32_t)sample >> 8"."
*
* For ADPCM this might be 12 or 16 or similar
* Can be 0
*/
int bits_per_raw_sample;
/**
* Codec-specific bitstream restrictions that the stream conforms to.
*/
int profile;
int level;
/**
* Video only. The dimensions of the video frame in pixels.
*/
int width;
int height;
/**
* Video only. The aspect ratio (width / height) which a single pixel
* should have when displayed.
*
* When the aspect ratio is unknown / undefined, the numerator should be
* set to 0 (the denominator may have any value).
*/
AVRational sample_aspect_ratio;
/**
* Video only. The order of the fields in interlaced video.
*/
enum AVFieldOrder field_order;
/**
* Video only. Additional colorspace characteristics.
*/
enum AVColorRange color_range;
enum AVColorPrimaries color_primaries;
enum AVColorTransferCharacteristic color_trc;
enum AVColorSpace color_space;
enum AVChromaLocation chroma_location;
/**
* Video only. Number of delayed frames.
*/
int video_delay;
#if FF_API_OLD_CHANNEL_LAYOUT
/**
* Audio only. The channel layout bitmask. May be 0 if the channel layout is
* unknown or unspecified, otherwise the number of bits set must be equal to
* the channels field.
* @deprecated use ch_layout
*/
attribute_deprecated
uint64_t channel_layout;
/**
* Audio only. The number of audio channels.
* @deprecated use ch_layout.nb_channels
*/
attribute_deprecated
int channels;
#endif
/**
* Audio only. The number of audio samples per second.
*/
int sample_rate;
/**
* Audio only. The number of bytes per coded audio frame, required by some
* formats.
*
* Corresponds to nBlockAlign in WAVEFORMATEX.
*/
int block_align;
/**
* Audio only. Audio frame size, if known. Required by some formats to be static.
*/
int frame_size;
/**
* Audio only. The amount of padding (in samples) inserted by the encoder at
* the beginning of the audio. I.e. this number of leading decoded samples
* must be discarded by the caller to get the original audio without leading
* padding.
*/
int initial_padding;
/**
* Audio only. The amount of padding (in samples) appended by the encoder to
* the end of the audio. I.e. this number of decoded samples must be
* discarded by the caller from the end of the stream to get the original
* audio without any trailing padding.
*/
int trailing_padding;
/**
* Audio only. Number of samples to skip after a discontinuity.
*/
int seek_preroll;
/**
* Audio only. The channel layout and number of channels.
*/
AVChannelLayout ch_layout;
/**
* Video only. Number of frames per second, for streams with constant frame
* durations. Should be set to { 0, 1 } when some frames have differing
* durations or if the value is not known.
*
* @note This field correponds to values that are stored in codec-level
* headers and is typically overridden by container/transport-layer
* timestamps, when available. It should thus be used only as a last resort,
* when no higher-level timing information is available.
*/
AVRational framerate;
/**
* Additional data associated with the entire stream.
*/
AVPacketSideData *coded_side_data;
/**
* Amount of entries in @ref coded_side_data.
*/
int nb_coded_side_data;
} AVCodecParameters;
/**
* Allocate a new AVCodecParameters and set its fields to default values
* (unknown/invalid/0). The returned struct must be freed with
* avcodec_parameters_free().
*/
AVCodecParameters *avcodec_parameters_alloc(void);
/**
* Free an AVCodecParameters instance and everything associated with it and
* write NULL to the supplied pointer.
*/
void avcodec_parameters_free(AVCodecParameters **par);
/**
* Copy the contents of src to dst. Any allocated fields in dst are freed and
* replaced with newly allocated duplicates of the corresponding fields in src.
*
* @return >= 0 on success, a negative AVERROR code on failure.
*/
int avcodec_parameters_copy(AVCodecParameters *dst, const AVCodecParameters *src);
/**
* This function is the same as av_get_audio_frame_duration(), except it works
* with AVCodecParameters instead of an AVCodecContext.
*/
int av_get_audio_frame_duration2(AVCodecParameters *par, int frame_bytes);
/**
* @}
*/
#endif // AVCODEC_CODEC_PAR_H

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/*
* Direct3D11 HW acceleration
*
* copyright (c) 2009 Laurent Aimar
* copyright (c) 2015 Steve Lhomme
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_D3D11VA_H
#define AVCODEC_D3D11VA_H
/**
* @file
* @ingroup lavc_codec_hwaccel_d3d11va
* Public libavcodec D3D11VA header.
*/
#if !defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0602
#undef _WIN32_WINNT
#define _WIN32_WINNT 0x0602
#endif
#include <stdint.h>
#include <d3d11.h>
/**
* @defgroup lavc_codec_hwaccel_d3d11va Direct3D11
* @ingroup lavc_codec_hwaccel
*
* @{
*/
#define FF_DXVA2_WORKAROUND_SCALING_LIST_ZIGZAG 1 ///< Work around for Direct3D11 and old UVD/UVD+ ATI video cards
#define FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO 2 ///< Work around for Direct3D11 and old Intel GPUs with ClearVideo interface
/**
* This structure is used to provides the necessary configurations and data
* to the Direct3D11 FFmpeg HWAccel implementation.
*
* The application must make it available as AVCodecContext.hwaccel_context.
*
* Use av_d3d11va_alloc_context() exclusively to allocate an AVD3D11VAContext.
*/
typedef struct AVD3D11VAContext {
/**
* D3D11 decoder object
*/
ID3D11VideoDecoder *decoder;
/**
* D3D11 VideoContext
*/
ID3D11VideoContext *video_context;
/**
* D3D11 configuration used to create the decoder
*/
D3D11_VIDEO_DECODER_CONFIG *cfg;
/**
* The number of surface in the surface array
*/
unsigned surface_count;
/**
* The array of Direct3D surfaces used to create the decoder
*/
ID3D11VideoDecoderOutputView **surface;
/**
* A bit field configuring the workarounds needed for using the decoder
*/
uint64_t workaround;
/**
* Private to the FFmpeg AVHWAccel implementation
*/
unsigned report_id;
/**
* Mutex to access video_context
*/
HANDLE context_mutex;
} AVD3D11VAContext;
/**
* Allocate an AVD3D11VAContext.
*
* @return Newly-allocated AVD3D11VAContext or NULL on failure.
*/
AVD3D11VAContext *av_d3d11va_alloc_context(void);
/**
* @}
*/
#endif /* AVCODEC_D3D11VA_H */

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/*
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_DEFS_H
#define AVCODEC_DEFS_H
/**
* @file
* @ingroup libavc
* Misc types and constants that do not belong anywhere else.
*/
#include <stdint.h>
#include <stdlib.h>
/**
* @ingroup lavc_decoding
* Required number of additionally allocated bytes at the end of the input bitstream for decoding.
* This is mainly needed because some optimized bitstream readers read
* 32 or 64 bit at once and could read over the end.<br>
* Note: If the first 23 bits of the additional bytes are not 0, then damaged
* MPEG bitstreams could cause overread and segfault.
*/
#define AV_INPUT_BUFFER_PADDING_SIZE 64
/**
* Verify checksums embedded in the bitstream (could be of either encoded or
* decoded data, depending on the format) and print an error message on mismatch.
* If AV_EF_EXPLODE is also set, a mismatching checksum will result in the
* decoder/demuxer returning an error.
*/
#define AV_EF_CRCCHECK (1<<0)
#define AV_EF_BITSTREAM (1<<1) ///< detect bitstream specification deviations
#define AV_EF_BUFFER (1<<2) ///< detect improper bitstream length
#define AV_EF_EXPLODE (1<<3) ///< abort decoding on minor error detection
#define AV_EF_IGNORE_ERR (1<<15) ///< ignore errors and continue
#define AV_EF_CAREFUL (1<<16) ///< consider things that violate the spec, are fast to calculate and have not been seen in the wild as errors
#define AV_EF_COMPLIANT (1<<17) ///< consider all spec non compliances as errors
#define AV_EF_AGGRESSIVE (1<<18) ///< consider things that a sane encoder/muxer should not do as an error
#define FF_COMPLIANCE_VERY_STRICT 2 ///< Strictly conform to an older more strict version of the spec or reference software.
#define FF_COMPLIANCE_STRICT 1 ///< Strictly conform to all the things in the spec no matter what consequences.
#define FF_COMPLIANCE_NORMAL 0
#define FF_COMPLIANCE_UNOFFICIAL -1 ///< Allow unofficial extensions
#define FF_COMPLIANCE_EXPERIMENTAL -2 ///< Allow nonstandardized experimental things.
#define AV_PROFILE_UNKNOWN -99
#define AV_PROFILE_RESERVED -100
#define AV_PROFILE_AAC_MAIN 0
#define AV_PROFILE_AAC_LOW 1
#define AV_PROFILE_AAC_SSR 2
#define AV_PROFILE_AAC_LTP 3
#define AV_PROFILE_AAC_HE 4
#define AV_PROFILE_AAC_HE_V2 28
#define AV_PROFILE_AAC_LD 22
#define AV_PROFILE_AAC_ELD 38
#define AV_PROFILE_MPEG2_AAC_LOW 128
#define AV_PROFILE_MPEG2_AAC_HE 131
#define AV_PROFILE_DNXHD 0
#define AV_PROFILE_DNXHR_LB 1
#define AV_PROFILE_DNXHR_SQ 2
#define AV_PROFILE_DNXHR_HQ 3
#define AV_PROFILE_DNXHR_HQX 4
#define AV_PROFILE_DNXHR_444 5
#define AV_PROFILE_DTS 20
#define AV_PROFILE_DTS_ES 30
#define AV_PROFILE_DTS_96_24 40
#define AV_PROFILE_DTS_HD_HRA 50
#define AV_PROFILE_DTS_HD_MA 60
#define AV_PROFILE_DTS_EXPRESS 70
#define AV_PROFILE_DTS_HD_MA_X 61
#define AV_PROFILE_DTS_HD_MA_X_IMAX 62
#define AV_PROFILE_EAC3_DDP_ATMOS 30
#define AV_PROFILE_TRUEHD_ATMOS 30
#define AV_PROFILE_MPEG2_422 0
#define AV_PROFILE_MPEG2_HIGH 1
#define AV_PROFILE_MPEG2_SS 2
#define AV_PROFILE_MPEG2_SNR_SCALABLE 3
#define AV_PROFILE_MPEG2_MAIN 4
#define AV_PROFILE_MPEG2_SIMPLE 5
#define AV_PROFILE_H264_CONSTRAINED (1<<9) // 8+1; constraint_set1_flag
#define AV_PROFILE_H264_INTRA (1<<11) // 8+3; constraint_set3_flag
#define AV_PROFILE_H264_BASELINE 66
#define AV_PROFILE_H264_CONSTRAINED_BASELINE (66|AV_PROFILE_H264_CONSTRAINED)
#define AV_PROFILE_H264_MAIN 77
#define AV_PROFILE_H264_EXTENDED 88
#define AV_PROFILE_H264_HIGH 100
#define AV_PROFILE_H264_HIGH_10 110
#define AV_PROFILE_H264_HIGH_10_INTRA (110|AV_PROFILE_H264_INTRA)
#define AV_PROFILE_H264_MULTIVIEW_HIGH 118
#define AV_PROFILE_H264_HIGH_422 122
#define AV_PROFILE_H264_HIGH_422_INTRA (122|AV_PROFILE_H264_INTRA)
#define AV_PROFILE_H264_STEREO_HIGH 128
#define AV_PROFILE_H264_HIGH_444 144
#define AV_PROFILE_H264_HIGH_444_PREDICTIVE 244
#define AV_PROFILE_H264_HIGH_444_INTRA (244|AV_PROFILE_H264_INTRA)
#define AV_PROFILE_H264_CAVLC_444 44
#define AV_PROFILE_VC1_SIMPLE 0
#define AV_PROFILE_VC1_MAIN 1
#define AV_PROFILE_VC1_COMPLEX 2
#define AV_PROFILE_VC1_ADVANCED 3
#define AV_PROFILE_MPEG4_SIMPLE 0
#define AV_PROFILE_MPEG4_SIMPLE_SCALABLE 1
#define AV_PROFILE_MPEG4_CORE 2
#define AV_PROFILE_MPEG4_MAIN 3
#define AV_PROFILE_MPEG4_N_BIT 4
#define AV_PROFILE_MPEG4_SCALABLE_TEXTURE 5
#define AV_PROFILE_MPEG4_SIMPLE_FACE_ANIMATION 6
#define AV_PROFILE_MPEG4_BASIC_ANIMATED_TEXTURE 7
#define AV_PROFILE_MPEG4_HYBRID 8
#define AV_PROFILE_MPEG4_ADVANCED_REAL_TIME 9
#define AV_PROFILE_MPEG4_CORE_SCALABLE 10
#define AV_PROFILE_MPEG4_ADVANCED_CODING 11
#define AV_PROFILE_MPEG4_ADVANCED_CORE 12
#define AV_PROFILE_MPEG4_ADVANCED_SCALABLE_TEXTURE 13
#define AV_PROFILE_MPEG4_SIMPLE_STUDIO 14
#define AV_PROFILE_MPEG4_ADVANCED_SIMPLE 15
#define AV_PROFILE_JPEG2000_CSTREAM_RESTRICTION_0 1
#define AV_PROFILE_JPEG2000_CSTREAM_RESTRICTION_1 2
#define AV_PROFILE_JPEG2000_CSTREAM_NO_RESTRICTION 32768
#define AV_PROFILE_JPEG2000_DCINEMA_2K 3
#define AV_PROFILE_JPEG2000_DCINEMA_4K 4
#define AV_PROFILE_VP9_0 0
#define AV_PROFILE_VP9_1 1
#define AV_PROFILE_VP9_2 2
#define AV_PROFILE_VP9_3 3
#define AV_PROFILE_HEVC_MAIN 1
#define AV_PROFILE_HEVC_MAIN_10 2
#define AV_PROFILE_HEVC_MAIN_STILL_PICTURE 3
#define AV_PROFILE_HEVC_REXT 4
#define AV_PROFILE_HEVC_SCC 9
#define AV_PROFILE_VVC_MAIN_10 1
#define AV_PROFILE_VVC_MAIN_10_444 33
#define AV_PROFILE_AV1_MAIN 0
#define AV_PROFILE_AV1_HIGH 1
#define AV_PROFILE_AV1_PROFESSIONAL 2
#define AV_PROFILE_MJPEG_HUFFMAN_BASELINE_DCT 0xc0
#define AV_PROFILE_MJPEG_HUFFMAN_EXTENDED_SEQUENTIAL_DCT 0xc1
#define AV_PROFILE_MJPEG_HUFFMAN_PROGRESSIVE_DCT 0xc2
#define AV_PROFILE_MJPEG_HUFFMAN_LOSSLESS 0xc3
#define AV_PROFILE_MJPEG_JPEG_LS 0xf7
#define AV_PROFILE_SBC_MSBC 1
#define AV_PROFILE_PRORES_PROXY 0
#define AV_PROFILE_PRORES_LT 1
#define AV_PROFILE_PRORES_STANDARD 2
#define AV_PROFILE_PRORES_HQ 3
#define AV_PROFILE_PRORES_4444 4
#define AV_PROFILE_PRORES_XQ 5
#define AV_PROFILE_ARIB_PROFILE_A 0
#define AV_PROFILE_ARIB_PROFILE_C 1
#define AV_PROFILE_KLVA_SYNC 0
#define AV_PROFILE_KLVA_ASYNC 1
#define AV_PROFILE_EVC_BASELINE 0
#define AV_PROFILE_EVC_MAIN 1
#define AV_LEVEL_UNKNOWN -99
enum AVFieldOrder {
AV_FIELD_UNKNOWN,
AV_FIELD_PROGRESSIVE,
AV_FIELD_TT, ///< Top coded_first, top displayed first
AV_FIELD_BB, ///< Bottom coded first, bottom displayed first
AV_FIELD_TB, ///< Top coded first, bottom displayed first
AV_FIELD_BT, ///< Bottom coded first, top displayed first
};
/**
* @ingroup lavc_decoding
*/
enum AVDiscard{
/* We leave some space between them for extensions (drop some
* keyframes for intra-only or drop just some bidir frames). */
AVDISCARD_NONE =-16, ///< discard nothing
AVDISCARD_DEFAULT = 0, ///< discard useless packets like 0 size packets in avi
AVDISCARD_NONREF = 8, ///< discard all non reference
AVDISCARD_BIDIR = 16, ///< discard all bidirectional frames
AVDISCARD_NONINTRA= 24, ///< discard all non intra frames
AVDISCARD_NONKEY = 32, ///< discard all frames except keyframes
AVDISCARD_ALL = 48, ///< discard all
};
enum AVAudioServiceType {
AV_AUDIO_SERVICE_TYPE_MAIN = 0,
AV_AUDIO_SERVICE_TYPE_EFFECTS = 1,
AV_AUDIO_SERVICE_TYPE_VISUALLY_IMPAIRED = 2,
AV_AUDIO_SERVICE_TYPE_HEARING_IMPAIRED = 3,
AV_AUDIO_SERVICE_TYPE_DIALOGUE = 4,
AV_AUDIO_SERVICE_TYPE_COMMENTARY = 5,
AV_AUDIO_SERVICE_TYPE_EMERGENCY = 6,
AV_AUDIO_SERVICE_TYPE_VOICE_OVER = 7,
AV_AUDIO_SERVICE_TYPE_KARAOKE = 8,
AV_AUDIO_SERVICE_TYPE_NB , ///< Not part of ABI
};
/**
* Pan Scan area.
* This specifies the area which should be displayed.
* Note there may be multiple such areas for one frame.
*/
typedef struct AVPanScan {
/**
* id
* - encoding: Set by user.
* - decoding: Set by libavcodec.
*/
int id;
/**
* width and height in 1/16 pel
* - encoding: Set by user.
* - decoding: Set by libavcodec.
*/
int width;
int height;
/**
* position of the top left corner in 1/16 pel for up to 3 fields/frames
* - encoding: Set by user.
* - decoding: Set by libavcodec.
*/
int16_t position[3][2];
} AVPanScan;
/**
* This structure describes the bitrate properties of an encoded bitstream. It
* roughly corresponds to a subset the VBV parameters for MPEG-2 or HRD
* parameters for H.264/HEVC.
*/
typedef struct AVCPBProperties {
/**
* Maximum bitrate of the stream, in bits per second.
* Zero if unknown or unspecified.
*/
int64_t max_bitrate;
/**
* Minimum bitrate of the stream, in bits per second.
* Zero if unknown or unspecified.
*/
int64_t min_bitrate;
/**
* Average bitrate of the stream, in bits per second.
* Zero if unknown or unspecified.
*/
int64_t avg_bitrate;
/**
* The size of the buffer to which the ratecontrol is applied, in bits.
* Zero if unknown or unspecified.
*/
int64_t buffer_size;
/**
* The delay between the time the packet this structure is associated with
* is received and the time when it should be decoded, in periods of a 27MHz
* clock.
*
* UINT64_MAX when unknown or unspecified.
*/
uint64_t vbv_delay;
} AVCPBProperties;
/**
* Allocate a CPB properties structure and initialize its fields to default
* values.
*
* @param size if non-NULL, the size of the allocated struct will be written
* here. This is useful for embedding it in side data.
*
* @return the newly allocated struct or NULL on failure
*/
AVCPBProperties *av_cpb_properties_alloc(size_t *size);
/**
* This structure supplies correlation between a packet timestamp and a wall clock
* production time. The definition follows the Producer Reference Time ('prft')
* as defined in ISO/IEC 14496-12
*/
typedef struct AVProducerReferenceTime {
/**
* A UTC timestamp, in microseconds, since Unix epoch (e.g, av_gettime()).
*/
int64_t wallclock;
int flags;
} AVProducerReferenceTime;
/**
* Encode extradata length to a buffer. Used by xiph codecs.
*
* @param s buffer to write to; must be at least (v/255+1) bytes long
* @param v size of extradata in bytes
* @return number of bytes written to the buffer.
*/
unsigned int av_xiphlacing(unsigned char *s, unsigned int v);
#endif // AVCODEC_DEFS_H

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/*
* Copyright (C) 2007 Marco Gerards <marco@gnu.org>
* Copyright (C) 2009 David Conrad
* Copyright (C) 2011 Jordi Ortiz
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_DIRAC_H
#define AVCODEC_DIRAC_H
/**
* @file
* Interface to Dirac Decoder/Encoder
* @author Marco Gerards <marco@gnu.org>
* @author David Conrad
* @author Jordi Ortiz
*/
#include <stddef.h>
#include <stdint.h>
#include "libavutil/pixfmt.h"
#include "libavutil/rational.h"
/**
* The spec limits the number of wavelet decompositions to 4 for both
* level 1 (VC-2) and 128 (long-gop default).
* 5 decompositions is the maximum before >16-bit buffers are needed.
* Schroedinger allows this for DD 9,7 and 13,7 wavelets only, limiting
* the others to 4 decompositions (or 3 for the fidelity filter).
*
* We use this instead of MAX_DECOMPOSITIONS to save some memory.
*/
#define MAX_DWT_LEVELS 5
/**
* Parse code values:
*
* Dirac Specification ->
* 9.6.1 Table 9.1
*
* VC-2 Specification ->
* 10.4.1 Table 10.1
*/
enum DiracParseCodes {
DIRAC_PCODE_SEQ_HEADER = 0x00,
DIRAC_PCODE_END_SEQ = 0x10,
DIRAC_PCODE_AUX = 0x20,
DIRAC_PCODE_PAD = 0x30,
DIRAC_PCODE_PICTURE_CODED = 0x08,
DIRAC_PCODE_PICTURE_RAW = 0x48,
DIRAC_PCODE_PICTURE_LOW_DEL = 0xC8,
DIRAC_PCODE_PICTURE_HQ = 0xE8,
DIRAC_PCODE_INTER_NOREF_CO1 = 0x0A,
DIRAC_PCODE_INTER_NOREF_CO2 = 0x09,
DIRAC_PCODE_INTER_REF_CO1 = 0x0D,
DIRAC_PCODE_INTER_REF_CO2 = 0x0E,
DIRAC_PCODE_INTRA_REF_CO = 0x0C,
DIRAC_PCODE_INTRA_REF_RAW = 0x4C,
DIRAC_PCODE_INTRA_REF_PICT = 0xCC,
DIRAC_PCODE_MAGIC = 0x42424344,
};
typedef struct DiracVersionInfo {
int major;
int minor;
} DiracVersionInfo;
typedef struct AVDiracSeqHeader {
unsigned width;
unsigned height;
uint8_t chroma_format; ///< 0: 444 1: 422 2: 420
uint8_t interlaced;
uint8_t top_field_first;
uint8_t frame_rate_index; ///< index into dirac_frame_rate[]
uint8_t aspect_ratio_index; ///< index into dirac_aspect_ratio[]
uint16_t clean_width;
uint16_t clean_height;
uint16_t clean_left_offset;
uint16_t clean_right_offset;
uint8_t pixel_range_index; ///< index into dirac_pixel_range_presets[]
uint8_t color_spec_index; ///< index into dirac_color_spec_presets[]
int profile;
int level;
AVRational framerate;
AVRational sample_aspect_ratio;
enum AVPixelFormat pix_fmt;
enum AVColorRange color_range;
enum AVColorPrimaries color_primaries;
enum AVColorTransferCharacteristic color_trc;
enum AVColorSpace colorspace;
DiracVersionInfo version;
int bit_depth;
} AVDiracSeqHeader;
/**
* Parse a Dirac sequence header.
*
* @param dsh this function will allocate and fill an AVDiracSeqHeader struct
* and write it into this pointer. The caller must free it with
* av_free().
* @param buf the data buffer
* @param buf_size the size of the data buffer in bytes
* @param log_ctx if non-NULL, this function will log errors here
* @return 0 on success, a negative AVERROR code on failure
*/
int av_dirac_parse_sequence_header(AVDiracSeqHeader **dsh,
const uint8_t *buf, size_t buf_size,
void *log_ctx);
#endif /* AVCODEC_DIRAC_H */

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/*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_DV_PROFILE_H
#define AVCODEC_DV_PROFILE_H
#include <stdint.h>
#include "libavutil/pixfmt.h"
#include "libavutil/rational.h"
/* minimum number of bytes to read from a DV stream in order to
* determine the profile */
#define DV_PROFILE_BYTES (6 * 80) /* 6 DIF blocks */
/*
* AVDVProfile is used to express the differences between various
* DV flavors. For now it's primarily used for differentiating
* 525/60 and 625/50, but the plans are to use it for various
* DV specs as well (e.g. SMPTE314M vs. IEC 61834).
*/
typedef struct AVDVProfile {
int dsf; /* value of the dsf in the DV header */
int video_stype; /* stype for VAUX source pack */
int frame_size; /* total size of one frame in bytes */
int difseg_size; /* number of DIF segments per DIF channel */
int n_difchan; /* number of DIF channels per frame */
AVRational time_base; /* 1/framerate */
int ltc_divisor; /* FPS from the LTS standpoint */
int height; /* picture height in pixels */
int width; /* picture width in pixels */
AVRational sar[2]; /* sample aspect ratios for 4:3 and 16:9 */
enum AVPixelFormat pix_fmt; /* picture pixel format */
int bpm; /* blocks per macroblock */
const uint8_t *block_sizes; /* AC block sizes, in bits */
int audio_stride; /* size of audio_shuffle table */
int audio_min_samples[3]; /* min amount of audio samples */
/* for 48kHz, 44.1kHz and 32kHz */
int audio_samples_dist[5]; /* how many samples are supposed to be */
/* in each frame in a 5 frames window */
const uint8_t (*audio_shuffle)[9]; /* PCM shuffling table */
} AVDVProfile;
/**
* Get a DV profile for the provided compressed frame.
*
* @param sys the profile used for the previous frame, may be NULL
* @param frame the compressed data buffer
* @param buf_size size of the buffer in bytes
* @return the DV profile for the supplied data or NULL on failure
*/
const AVDVProfile *av_dv_frame_profile(const AVDVProfile *sys,
const uint8_t *frame, unsigned buf_size);
/**
* Get a DV profile for the provided stream parameters.
*/
const AVDVProfile *av_dv_codec_profile(int width, int height, enum AVPixelFormat pix_fmt);
/**
* Get a DV profile for the provided stream parameters.
* The frame rate is used as a best-effort parameter.
*/
const AVDVProfile *av_dv_codec_profile2(int width, int height, enum AVPixelFormat pix_fmt, AVRational frame_rate);
#endif /* AVCODEC_DV_PROFILE_H */

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/*
* DXVA2 HW acceleration
*
* copyright (c) 2009 Laurent Aimar
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_DXVA2_H
#define AVCODEC_DXVA2_H
/**
* @file
* @ingroup lavc_codec_hwaccel_dxva2
* Public libavcodec DXVA2 header.
*/
#if !defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0602
#undef _WIN32_WINNT
#define _WIN32_WINNT 0x0602
#endif
#include <stdint.h>
#include <d3d9.h>
#include <dxva2api.h>
/**
* @defgroup lavc_codec_hwaccel_dxva2 DXVA2
* @ingroup lavc_codec_hwaccel
*
* @{
*/
#define FF_DXVA2_WORKAROUND_SCALING_LIST_ZIGZAG 1 ///< Work around for DXVA2 and old UVD/UVD+ ATI video cards
#define FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO 2 ///< Work around for DXVA2 and old Intel GPUs with ClearVideo interface
/**
* This structure is used to provides the necessary configurations and data
* to the DXVA2 FFmpeg HWAccel implementation.
*
* The application must make it available as AVCodecContext.hwaccel_context.
*/
struct dxva_context {
/**
* DXVA2 decoder object
*/
IDirectXVideoDecoder *decoder;
/**
* DXVA2 configuration used to create the decoder
*/
const DXVA2_ConfigPictureDecode *cfg;
/**
* The number of surface in the surface array
*/
unsigned surface_count;
/**
* The array of Direct3D surfaces used to create the decoder
*/
LPDIRECT3DSURFACE9 *surface;
/**
* A bit field configuring the workarounds needed for using the decoder
*/
uint64_t workaround;
/**
* Private to the FFmpeg AVHWAccel implementation
*/
unsigned report_id;
};
/**
* @}
*/
#endif /* AVCODEC_DXVA2_H */

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/*
* JNI public API functions
*
* Copyright (c) 2015-2016 Matthieu Bouron <matthieu.bouron stupeflix.com>
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_JNI_H
#define AVCODEC_JNI_H
/*
* Manually set a Java virtual machine which will be used to retrieve the JNI
* environment. Once a Java VM is set it cannot be changed afterwards, meaning
* you can call multiple times av_jni_set_java_vm with the same Java VM pointer
* however it will error out if you try to set a different Java VM.
*
* @param vm Java virtual machine
* @param log_ctx context used for logging, can be NULL
* @return 0 on success, < 0 otherwise
*/
int av_jni_set_java_vm(void *vm, void *log_ctx);
/*
* Get the Java virtual machine which has been set with av_jni_set_java_vm.
*
* @param vm Java virtual machine
* @return a pointer to the Java virtual machine
*/
void *av_jni_get_java_vm(void *log_ctx);
#endif /* AVCODEC_JNI_H */

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/*
* Android MediaCodec public API
*
* Copyright (c) 2016 Matthieu Bouron <matthieu.bouron stupeflix.com>
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_MEDIACODEC_H
#define AVCODEC_MEDIACODEC_H
#include "libavcodec/avcodec.h"
/**
* This structure holds a reference to a android/view/Surface object that will
* be used as output by the decoder.
*
*/
typedef struct AVMediaCodecContext {
/**
* android/view/Surface object reference.
*/
void *surface;
} AVMediaCodecContext;
/**
* Allocate and initialize a MediaCodec context.
*
* When decoding with MediaCodec is finished, the caller must free the
* MediaCodec context with av_mediacodec_default_free.
*
* @return a pointer to a newly allocated AVMediaCodecContext on success, NULL otherwise
*/
AVMediaCodecContext *av_mediacodec_alloc_context(void);
/**
* Convenience function that sets up the MediaCodec context.
*
* @param avctx codec context
* @param ctx MediaCodec context to initialize
* @param surface reference to an android/view/Surface
* @return 0 on success, < 0 otherwise
*/
int av_mediacodec_default_init(AVCodecContext *avctx, AVMediaCodecContext *ctx, void *surface);
/**
* This function must be called to free the MediaCodec context initialized with
* av_mediacodec_default_init().
*
* @param avctx codec context
*/
void av_mediacodec_default_free(AVCodecContext *avctx);
/**
* Opaque structure representing a MediaCodec buffer to render.
*/
typedef struct MediaCodecBuffer AVMediaCodecBuffer;
/**
* Release a MediaCodec buffer and render it to the surface that is associated
* with the decoder. This function should only be called once on a given
* buffer, once released the underlying buffer returns to the codec, thus
* subsequent calls to this function will have no effect.
*
* @param buffer the buffer to render
* @param render 1 to release and render the buffer to the surface or 0 to
* discard the buffer
* @return 0 on success, < 0 otherwise
*/
int av_mediacodec_release_buffer(AVMediaCodecBuffer *buffer, int render);
/**
* Release a MediaCodec buffer and render it at the given time to the surface
* that is associated with the decoder. The timestamp must be within one second
* of the current `java/lang/System#nanoTime()` (which is implemented using
* `CLOCK_MONOTONIC` on Android). See the Android MediaCodec documentation
* of [`android/media/MediaCodec#releaseOutputBuffer(int,long)`][0] for more details.
*
* @param buffer the buffer to render
* @param time timestamp in nanoseconds of when to render the buffer
* @return 0 on success, < 0 otherwise
*
* [0]: https://developer.android.com/reference/android/media/MediaCodec#releaseOutputBuffer(int,%20long)
*/
int av_mediacodec_render_buffer_at_time(AVMediaCodecBuffer *buffer, int64_t time);
#endif /* AVCODEC_MEDIACODEC_H */

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/*
* AVPacket public API
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_PACKET_H
#define AVCODEC_PACKET_H
#include <stddef.h>
#include <stdint.h>
#include "libavutil/attributes.h"
#include "libavutil/buffer.h"
#include "libavutil/dict.h"
#include "libavutil/rational.h"
#include "libavutil/version.h"
#include "libavcodec/version_major.h"
/**
* @defgroup lavc_packet_side_data AVPacketSideData
*
* Types and functions for working with AVPacketSideData.
* @{
*/
enum AVPacketSideDataType {
/**
* An AV_PKT_DATA_PALETTE side data packet contains exactly AVPALETTE_SIZE
* bytes worth of palette. This side data signals that a new palette is
* present.
*/
AV_PKT_DATA_PALETTE,
/**
* The AV_PKT_DATA_NEW_EXTRADATA is used to notify the codec or the format
* that the extradata buffer was changed and the receiving side should
* act upon it appropriately. The new extradata is embedded in the side
* data buffer and should be immediately used for processing the current
* frame or packet.
*/
AV_PKT_DATA_NEW_EXTRADATA,
/**
* An AV_PKT_DATA_PARAM_CHANGE side data packet is laid out as follows:
* @code
* u32le param_flags
* if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT)
* s32le channel_count
* if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT)
* u64le channel_layout
* if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE)
* s32le sample_rate
* if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS)
* s32le width
* s32le height
* @endcode
*/
AV_PKT_DATA_PARAM_CHANGE,
/**
* An AV_PKT_DATA_H263_MB_INFO side data packet contains a number of
* structures with info about macroblocks relevant to splitting the
* packet into smaller packets on macroblock edges (e.g. as for RFC 2190).
* That is, it does not necessarily contain info about all macroblocks,
* as long as the distance between macroblocks in the info is smaller
* than the target payload size.
* Each MB info structure is 12 bytes, and is laid out as follows:
* @code
* u32le bit offset from the start of the packet
* u8 current quantizer at the start of the macroblock
* u8 GOB number
* u16le macroblock address within the GOB
* u8 horizontal MV predictor
* u8 vertical MV predictor
* u8 horizontal MV predictor for block number 3
* u8 vertical MV predictor for block number 3
* @endcode
*/
AV_PKT_DATA_H263_MB_INFO,
/**
* This side data should be associated with an audio stream and contains
* ReplayGain information in form of the AVReplayGain struct.
*/
AV_PKT_DATA_REPLAYGAIN,
/**
* This side data contains a 3x3 transformation matrix describing an affine
* transformation that needs to be applied to the decoded video frames for
* correct presentation.
*
* See libavutil/display.h for a detailed description of the data.
*/
AV_PKT_DATA_DISPLAYMATRIX,
/**
* This side data should be associated with a video stream and contains
* Stereoscopic 3D information in form of the AVStereo3D struct.
*/
AV_PKT_DATA_STEREO3D,
/**
* This side data should be associated with an audio stream and corresponds
* to enum AVAudioServiceType.
*/
AV_PKT_DATA_AUDIO_SERVICE_TYPE,
/**
* This side data contains quality related information from the encoder.
* @code
* u32le quality factor of the compressed frame. Allowed range is between 1 (good) and FF_LAMBDA_MAX (bad).
* u8 picture type
* u8 error count
* u16 reserved
* u64le[error count] sum of squared differences between encoder in and output
* @endcode
*/
AV_PKT_DATA_QUALITY_STATS,
/**
* This side data contains an integer value representing the stream index
* of a "fallback" track. A fallback track indicates an alternate
* track to use when the current track can not be decoded for some reason.
* e.g. no decoder available for codec.
*/
AV_PKT_DATA_FALLBACK_TRACK,
/**
* This side data corresponds to the AVCPBProperties struct.
*/
AV_PKT_DATA_CPB_PROPERTIES,
/**
* Recommmends skipping the specified number of samples
* @code
* u32le number of samples to skip from start of this packet
* u32le number of samples to skip from end of this packet
* u8 reason for start skip
* u8 reason for end skip (0=padding silence, 1=convergence)
* @endcode
*/
AV_PKT_DATA_SKIP_SAMPLES,
/**
* An AV_PKT_DATA_JP_DUALMONO side data packet indicates that
* the packet may contain "dual mono" audio specific to Japanese DTV
* and if it is true, recommends only the selected channel to be used.
* @code
* u8 selected channels (0=main/left, 1=sub/right, 2=both)
* @endcode
*/
AV_PKT_DATA_JP_DUALMONO,
/**
* A list of zero terminated key/value strings. There is no end marker for
* the list, so it is required to rely on the side data size to stop.
*/
AV_PKT_DATA_STRINGS_METADATA,
/**
* Subtitle event position
* @code
* u32le x1
* u32le y1
* u32le x2
* u32le y2
* @endcode
*/
AV_PKT_DATA_SUBTITLE_POSITION,
/**
* Data found in BlockAdditional element of matroska container. There is
* no end marker for the data, so it is required to rely on the side data
* size to recognize the end. 8 byte id (as found in BlockAddId) followed
* by data.
*/
AV_PKT_DATA_MATROSKA_BLOCKADDITIONAL,
/**
* The optional first identifier line of a WebVTT cue.
*/
AV_PKT_DATA_WEBVTT_IDENTIFIER,
/**
* The optional settings (rendering instructions) that immediately
* follow the timestamp specifier of a WebVTT cue.
*/
AV_PKT_DATA_WEBVTT_SETTINGS,
/**
* A list of zero terminated key/value strings. There is no end marker for
* the list, so it is required to rely on the side data size to stop. This
* side data includes updated metadata which appeared in the stream.
*/
AV_PKT_DATA_METADATA_UPDATE,
/**
* MPEGTS stream ID as uint8_t, this is required to pass the stream ID
* information from the demuxer to the corresponding muxer.
*/
AV_PKT_DATA_MPEGTS_STREAM_ID,
/**
* Mastering display metadata (based on SMPTE-2086:2014). This metadata
* should be associated with a video stream and contains data in the form
* of the AVMasteringDisplayMetadata struct.
*/
AV_PKT_DATA_MASTERING_DISPLAY_METADATA,
/**
* This side data should be associated with a video stream and corresponds
* to the AVSphericalMapping structure.
*/
AV_PKT_DATA_SPHERICAL,
/**
* Content light level (based on CTA-861.3). This metadata should be
* associated with a video stream and contains data in the form of the
* AVContentLightMetadata struct.
*/
AV_PKT_DATA_CONTENT_LIGHT_LEVEL,
/**
* ATSC A53 Part 4 Closed Captions. This metadata should be associated with
* a video stream. A53 CC bitstream is stored as uint8_t in AVPacketSideData.data.
* The number of bytes of CC data is AVPacketSideData.size.
*/
AV_PKT_DATA_A53_CC,
/**
* This side data is encryption initialization data.
* The format is not part of ABI, use av_encryption_init_info_* methods to
* access.
*/
AV_PKT_DATA_ENCRYPTION_INIT_INFO,
/**
* This side data contains encryption info for how to decrypt the packet.
* The format is not part of ABI, use av_encryption_info_* methods to access.
*/
AV_PKT_DATA_ENCRYPTION_INFO,
/**
* Active Format Description data consisting of a single byte as specified
* in ETSI TS 101 154 using AVActiveFormatDescription enum.
*/
AV_PKT_DATA_AFD,
/**
* Producer Reference Time data corresponding to the AVProducerReferenceTime struct,
* usually exported by some encoders (on demand through the prft flag set in the
* AVCodecContext export_side_data field).
*/
AV_PKT_DATA_PRFT,
/**
* ICC profile data consisting of an opaque octet buffer following the
* format described by ISO 15076-1.
*/
AV_PKT_DATA_ICC_PROFILE,
/**
* DOVI configuration
* ref:
* dolby-vision-bitstreams-within-the-iso-base-media-file-format-v2.1.2, section 2.2
* dolby-vision-bitstreams-in-mpeg-2-transport-stream-multiplex-v1.2, section 3.3
* Tags are stored in struct AVDOVIDecoderConfigurationRecord.
*/
AV_PKT_DATA_DOVI_CONF,
/**
* Timecode which conforms to SMPTE ST 12-1:2014. The data is an array of 4 uint32_t
* where the first uint32_t describes how many (1-3) of the other timecodes are used.
* The timecode format is described in the documentation of av_timecode_get_smpte_from_framenum()
* function in libavutil/timecode.h.
*/
AV_PKT_DATA_S12M_TIMECODE,
/**
* HDR10+ dynamic metadata associated with a video frame. The metadata is in
* the form of the AVDynamicHDRPlus struct and contains
* information for color volume transform - application 4 of
* SMPTE 2094-40:2016 standard.
*/
AV_PKT_DATA_DYNAMIC_HDR10_PLUS,
/**
* The number of side data types.
* This is not part of the public API/ABI in the sense that it may
* change when new side data types are added.
* This must stay the last enum value.
* If its value becomes huge, some code using it
* needs to be updated as it assumes it to be smaller than other limits.
*/
AV_PKT_DATA_NB
};
#define AV_PKT_DATA_QUALITY_FACTOR AV_PKT_DATA_QUALITY_STATS //DEPRECATED
/**
* This structure stores auxiliary information for decoding, presenting, or
* otherwise processing the coded stream. It is typically exported by demuxers
* and encoders and can be fed to decoders and muxers either in a per packet
* basis, or as global side data (applying to the entire coded stream).
*
* Global side data is handled as follows:
* - During demuxing, it may be exported through
* @ref AVStream.codecpar.side_data "AVStream's codec parameters", which can
* then be passed as input to decoders through the
* @ref AVCodecContext.coded_side_data "decoder context's side data", for
* initialization.
* - For muxing, it can be fed through @ref AVStream.codecpar.side_data
* "AVStream's codec parameters", typically the output of encoders through
* the @ref AVCodecContext.coded_side_data "encoder context's side data", for
* initialization.
*
* Packet specific side data is handled as follows:
* - During demuxing, it may be exported through @ref AVPacket.side_data
* "AVPacket's side data", which can then be passed as input to decoders.
* - For muxing, it can be fed through @ref AVPacket.side_data "AVPacket's
* side data", typically the output of encoders.
*
* Different modules may accept or export different types of side data
* depending on media type and codec. Refer to @ref AVPacketSideDataType for a
* list of defined types and where they may be found or used.
*/
typedef struct AVPacketSideData {
uint8_t *data;
size_t size;
enum AVPacketSideDataType type;
} AVPacketSideData;
/**
* Allocate a new packet side data.
*
* @param sd pointer to an array of side data to which the side data should
* be added. *sd may be NULL, in which case the array will be
* initialized.
* @param nb_sd pointer to an integer containing the number of entries in
* the array. The integer value will be increased by 1 on success.
* @param type side data type
* @param size desired side data size
* @param flags currently unused. Must be zero
*
* @return pointer to freshly allocated side data on success, or NULL otherwise.
*/
AVPacketSideData *av_packet_side_data_new(AVPacketSideData **psd, int *pnb_sd,
enum AVPacketSideDataType type,
size_t size, int flags);
/**
* Wrap existing data as packet side data.
*
* @param sd pointer to an array of side data to which the side data should
* be added. *sd may be NULL, in which case the array will be
* initialized
* @param nb_sd pointer to an integer containing the number of entries in
* the array. The integer value will be increased by 1 on success.
* @param type side data type
* @param data a data array. It must be allocated with the av_malloc() family
* of functions. The ownership of the data is transferred to the
* side data array on success
* @param size size of the data array
* @param flags currently unused. Must be zero
*
* @return pointer to freshly allocated side data on success, or NULL otherwise
* On failure, the side data array is unchanged and the data remains
* owned by the caller.
*/
AVPacketSideData *av_packet_side_data_add(AVPacketSideData **sd, int *nb_sd,
enum AVPacketSideDataType type,
void *data, size_t size, int flags);
/**
* Get side information from a side data array.
*
* @param sd the array from which the side data should be fetched
* @param nb_sd value containing the number of entries in the array.
* @param type desired side information type
*
* @return pointer to side data if present or NULL otherwise
*/
const AVPacketSideData *av_packet_side_data_get(const AVPacketSideData *sd,
int nb_sd,
enum AVPacketSideDataType type);
/**
* Remove side data of the given type from a side data array.
*
* @param sd the array from which the side data should be removed
* @param nb_sd pointer to an integer containing the number of entries in
* the array. Will be reduced by the amount of entries removed
* upon return
* @param type side information type
*/
void av_packet_side_data_remove(AVPacketSideData *sd, int *nb_sd,
enum AVPacketSideDataType type);
/**
* Convenience function to free all the side data stored in an array, and
* the array itself.
*
* @param sd pointer to array of side data to free. Will be set to NULL
* upon return.
* @param nb_sd pointer to an integer containing the number of entries in
* the array. Will be set to 0 upon return.
*/
void av_packet_side_data_free(AVPacketSideData **sd, int *nb_sd);
const char *av_packet_side_data_name(enum AVPacketSideDataType type);
/**
* @}
*/
/**
* @defgroup lavc_packet AVPacket
*
* Types and functions for working with AVPacket.
* @{
*/
/**
* This structure stores compressed data. It is typically exported by demuxers
* and then passed as input to decoders, or received as output from encoders and
* then passed to muxers.
*
* For video, it should typically contain one compressed frame. For audio it may
* contain several compressed frames. Encoders are allowed to output empty
* packets, with no compressed data, containing only side data
* (e.g. to update some stream parameters at the end of encoding).
*
* The semantics of data ownership depends on the buf field.
* If it is set, the packet data is dynamically allocated and is
* valid indefinitely until a call to av_packet_unref() reduces the
* reference count to 0.
*
* If the buf field is not set av_packet_ref() would make a copy instead
* of increasing the reference count.
*
* The side data is always allocated with av_malloc(), copied by
* av_packet_ref() and freed by av_packet_unref().
*
* sizeof(AVPacket) being a part of the public ABI is deprecated. once
* av_init_packet() is removed, new packets will only be able to be allocated
* with av_packet_alloc(), and new fields may be added to the end of the struct
* with a minor bump.
*
* @see av_packet_alloc
* @see av_packet_ref
* @see av_packet_unref
*/
typedef struct AVPacket {
/**
* A reference to the reference-counted buffer where the packet data is
* stored.
* May be NULL, then the packet data is not reference-counted.
*/
AVBufferRef *buf;
/**
* Presentation timestamp in AVStream->time_base units; the time at which
* the decompressed packet will be presented to the user.
* Can be AV_NOPTS_VALUE if it is not stored in the file.
* pts MUST be larger or equal to dts as presentation cannot happen before
* decompression, unless one wants to view hex dumps. Some formats misuse
* the terms dts and pts/cts to mean something different. Such timestamps
* must be converted to true pts/dts before they are stored in AVPacket.
*/
int64_t pts;
/**
* Decompression timestamp in AVStream->time_base units; the time at which
* the packet is decompressed.
* Can be AV_NOPTS_VALUE if it is not stored in the file.
*/
int64_t dts;
uint8_t *data;
int size;
int stream_index;
/**
* A combination of AV_PKT_FLAG values
*/
int flags;
/**
* Additional packet data that can be provided by the container.
* Packet can contain several types of side information.
*/
AVPacketSideData *side_data;
int side_data_elems;
/**
* Duration of this packet in AVStream->time_base units, 0 if unknown.
* Equals next_pts - this_pts in presentation order.
*/
int64_t duration;
int64_t pos; ///< byte position in stream, -1 if unknown
/**
* for some private data of the user
*/
void *opaque;
/**
* AVBufferRef for free use by the API user. FFmpeg will never check the
* contents of the buffer ref. FFmpeg calls av_buffer_unref() on it when
* the packet is unreferenced. av_packet_copy_props() calls create a new
* reference with av_buffer_ref() for the target packet's opaque_ref field.
*
* This is unrelated to the opaque field, although it serves a similar
* purpose.
*/
AVBufferRef *opaque_ref;
/**
* Time base of the packet's timestamps.
* In the future, this field may be set on packets output by encoders or
* demuxers, but its value will be by default ignored on input to decoders
* or muxers.
*/
AVRational time_base;
} AVPacket;
#if FF_API_INIT_PACKET
attribute_deprecated
typedef struct AVPacketList {
AVPacket pkt;
struct AVPacketList *next;
} AVPacketList;
#endif
#define AV_PKT_FLAG_KEY 0x0001 ///< The packet contains a keyframe
#define AV_PKT_FLAG_CORRUPT 0x0002 ///< The packet content is corrupted
/**
* Flag is used to discard packets which are required to maintain valid
* decoder state but are not required for output and should be dropped
* after decoding.
**/
#define AV_PKT_FLAG_DISCARD 0x0004
/**
* The packet comes from a trusted source.
*
* Otherwise-unsafe constructs such as arbitrary pointers to data
* outside the packet may be followed.
*/
#define AV_PKT_FLAG_TRUSTED 0x0008
/**
* Flag is used to indicate packets that contain frames that can
* be discarded by the decoder. I.e. Non-reference frames.
*/
#define AV_PKT_FLAG_DISPOSABLE 0x0010
enum AVSideDataParamChangeFlags {
#if FF_API_OLD_CHANNEL_LAYOUT
/**
* @deprecated those are not used by any decoder
*/
AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT = 0x0001,
AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT = 0x0002,
#endif
AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE = 0x0004,
AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS = 0x0008,
};
/**
* Allocate an AVPacket and set its fields to default values. The resulting
* struct must be freed using av_packet_free().
*
* @return An AVPacket filled with default values or NULL on failure.
*
* @note this only allocates the AVPacket itself, not the data buffers. Those
* must be allocated through other means such as av_new_packet.
*
* @see av_new_packet
*/
AVPacket *av_packet_alloc(void);
/**
* Create a new packet that references the same data as src.
*
* This is a shortcut for av_packet_alloc()+av_packet_ref().
*
* @return newly created AVPacket on success, NULL on error.
*
* @see av_packet_alloc
* @see av_packet_ref
*/
AVPacket *av_packet_clone(const AVPacket *src);
/**
* Free the packet, if the packet is reference counted, it will be
* unreferenced first.
*
* @param pkt packet to be freed. The pointer will be set to NULL.
* @note passing NULL is a no-op.
*/
void av_packet_free(AVPacket **pkt);
#if FF_API_INIT_PACKET
/**
* Initialize optional fields of a packet with default values.
*
* Note, this does not touch the data and size members, which have to be
* initialized separately.
*
* @param pkt packet
*
* @see av_packet_alloc
* @see av_packet_unref
*
* @deprecated This function is deprecated. Once it's removed,
sizeof(AVPacket) will not be a part of the ABI anymore.
*/
attribute_deprecated
void av_init_packet(AVPacket *pkt);
#endif
/**
* Allocate the payload of a packet and initialize its fields with
* default values.
*
* @param pkt packet
* @param size wanted payload size
* @return 0 if OK, AVERROR_xxx otherwise
*/
int av_new_packet(AVPacket *pkt, int size);
/**
* Reduce packet size, correctly zeroing padding
*
* @param pkt packet
* @param size new size
*/
void av_shrink_packet(AVPacket *pkt, int size);
/**
* Increase packet size, correctly zeroing padding
*
* @param pkt packet
* @param grow_by number of bytes by which to increase the size of the packet
*/
int av_grow_packet(AVPacket *pkt, int grow_by);
/**
* Initialize a reference-counted packet from av_malloc()ed data.
*
* @param pkt packet to be initialized. This function will set the data, size,
* and buf fields, all others are left untouched.
* @param data Data allocated by av_malloc() to be used as packet data. If this
* function returns successfully, the data is owned by the underlying AVBuffer.
* The caller may not access the data through other means.
* @param size size of data in bytes, without the padding. I.e. the full buffer
* size is assumed to be size + AV_INPUT_BUFFER_PADDING_SIZE.
*
* @return 0 on success, a negative AVERROR on error
*/
int av_packet_from_data(AVPacket *pkt, uint8_t *data, int size);
/**
* Allocate new information of a packet.
*
* @param pkt packet
* @param type side information type
* @param size side information size
* @return pointer to fresh allocated data or NULL otherwise
*/
uint8_t* av_packet_new_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
size_t size);
/**
* Wrap an existing array as a packet side data.
*
* @param pkt packet
* @param type side information type
* @param data the side data array. It must be allocated with the av_malloc()
* family of functions. The ownership of the data is transferred to
* pkt.
* @param size side information size
* @return a non-negative number on success, a negative AVERROR code on
* failure. On failure, the packet is unchanged and the data remains
* owned by the caller.
*/
int av_packet_add_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
uint8_t *data, size_t size);
/**
* Shrink the already allocated side data buffer
*
* @param pkt packet
* @param type side information type
* @param size new side information size
* @return 0 on success, < 0 on failure
*/
int av_packet_shrink_side_data(AVPacket *pkt, enum AVPacketSideDataType type,
size_t size);
/**
* Get side information from packet.
*
* @param pkt packet
* @param type desired side information type
* @param size If supplied, *size will be set to the size of the side data
* or to zero if the desired side data is not present.
* @return pointer to data if present or NULL otherwise
*/
uint8_t* av_packet_get_side_data(const AVPacket *pkt, enum AVPacketSideDataType type,
size_t *size);
/**
* Pack a dictionary for use in side_data.
*
* @param dict The dictionary to pack.
* @param size pointer to store the size of the returned data
* @return pointer to data if successful, NULL otherwise
*/
uint8_t *av_packet_pack_dictionary(AVDictionary *dict, size_t *size);
/**
* Unpack a dictionary from side_data.
*
* @param data data from side_data
* @param size size of the data
* @param dict the metadata storage dictionary
* @return 0 on success, < 0 on failure
*/
int av_packet_unpack_dictionary(const uint8_t *data, size_t size,
AVDictionary **dict);
/**
* Convenience function to free all the side data stored.
* All the other fields stay untouched.
*
* @param pkt packet
*/
void av_packet_free_side_data(AVPacket *pkt);
/**
* Setup a new reference to the data described by a given packet
*
* If src is reference-counted, setup dst as a new reference to the
* buffer in src. Otherwise allocate a new buffer in dst and copy the
* data from src into it.
*
* All the other fields are copied from src.
*
* @see av_packet_unref
*
* @param dst Destination packet. Will be completely overwritten.
* @param src Source packet
*
* @return 0 on success, a negative AVERROR on error. On error, dst
* will be blank (as if returned by av_packet_alloc()).
*/
int av_packet_ref(AVPacket *dst, const AVPacket *src);
/**
* Wipe the packet.
*
* Unreference the buffer referenced by the packet and reset the
* remaining packet fields to their default values.
*
* @param pkt The packet to be unreferenced.
*/
void av_packet_unref(AVPacket *pkt);
/**
* Move every field in src to dst and reset src.
*
* @see av_packet_unref
*
* @param src Source packet, will be reset
* @param dst Destination packet
*/
void av_packet_move_ref(AVPacket *dst, AVPacket *src);
/**
* Copy only "properties" fields from src to dst.
*
* Properties for the purpose of this function are all the fields
* beside those related to the packet data (buf, data, size)
*
* @param dst Destination packet
* @param src Source packet
*
* @return 0 on success AVERROR on failure.
*/
int av_packet_copy_props(AVPacket *dst, const AVPacket *src);
/**
* Ensure the data described by a given packet is reference counted.
*
* @note This function does not ensure that the reference will be writable.
* Use av_packet_make_writable instead for that purpose.
*
* @see av_packet_ref
* @see av_packet_make_writable
*
* @param pkt packet whose data should be made reference counted.
*
* @return 0 on success, a negative AVERROR on error. On failure, the
* packet is unchanged.
*/
int av_packet_make_refcounted(AVPacket *pkt);
/**
* Create a writable reference for the data described by a given packet,
* avoiding data copy if possible.
*
* @param pkt Packet whose data should be made writable.
*
* @return 0 on success, a negative AVERROR on failure. On failure, the
* packet is unchanged.
*/
int av_packet_make_writable(AVPacket *pkt);
/**
* Convert valid timing fields (timestamps / durations) in a packet from one
* timebase to another. Timestamps with unknown values (AV_NOPTS_VALUE) will be
* ignored.
*
* @param pkt packet on which the conversion will be performed
* @param tb_src source timebase, in which the timing fields in pkt are
* expressed
* @param tb_dst destination timebase, to which the timing fields will be
* converted
*/
void av_packet_rescale_ts(AVPacket *pkt, AVRational tb_src, AVRational tb_dst);
/**
* @}
*/
#endif // AVCODEC_PACKET_H

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/*
* Intel MediaSDK QSV public API
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_QSV_H
#define AVCODEC_QSV_H
#include <mfxvideo.h>
#include "libavutil/buffer.h"
/**
* This struct is used for communicating QSV parameters between libavcodec and
* the caller. It is managed by the caller and must be assigned to
* AVCodecContext.hwaccel_context.
* - decoding: hwaccel_context must be set on return from the get_format()
* callback
* - encoding: hwaccel_context must be set before avcodec_open2()
*/
typedef struct AVQSVContext {
/**
* If non-NULL, the session to use for encoding or decoding.
* Otherwise, libavcodec will try to create an internal session.
*/
mfxSession session;
/**
* The IO pattern to use.
*/
int iopattern;
/**
* Extra buffers to pass to encoder or decoder initialization.
*/
mfxExtBuffer **ext_buffers;
int nb_ext_buffers;
/**
* Encoding only. If this field is set to non-zero by the caller, libavcodec
* will create an mfxExtOpaqueSurfaceAlloc extended buffer and pass it to
* the encoder initialization. This only makes sense if iopattern is also
* set to MFX_IOPATTERN_IN_OPAQUE_MEMORY.
*
* The number of allocated opaque surfaces will be the sum of the number
* required by the encoder and the user-provided value nb_opaque_surfaces.
* The array of the opaque surfaces will be exported to the caller through
* the opaque_surfaces field.
*
* The caller must set this field to zero for oneVPL (MFX_VERSION >= 2.0)
*/
int opaque_alloc;
/**
* Encoding only, and only if opaque_alloc is set to non-zero. Before
* calling avcodec_open2(), the caller should set this field to the number
* of extra opaque surfaces to allocate beyond what is required by the
* encoder.
*
* On return from avcodec_open2(), this field will be set by libavcodec to
* the total number of allocated opaque surfaces.
*/
int nb_opaque_surfaces;
/**
* Encoding only, and only if opaque_alloc is set to non-zero. On return
* from avcodec_open2(), this field will be used by libavcodec to export the
* array of the allocated opaque surfaces to the caller, so they can be
* passed to other parts of the pipeline.
*
* The buffer reference exported here is owned and managed by libavcodec,
* the callers should make their own reference with av_buffer_ref() and free
* it with av_buffer_unref() when it is no longer needed.
*
* The buffer data is an nb_opaque_surfaces-sized array of mfxFrameSurface1.
*/
AVBufferRef *opaque_surfaces;
/**
* Encoding only, and only if opaque_alloc is set to non-zero. On return
* from avcodec_open2(), this field will be set to the surface type used in
* the opaque allocation request.
*/
int opaque_alloc_type;
} AVQSVContext;
/**
* Allocate a new context.
*
* It must be freed by the caller with av_free().
*/
AVQSVContext *av_qsv_alloc_context(void);
#endif /* AVCODEC_QSV_H */

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/*
* The Video Decode and Presentation API for UNIX (VDPAU) is used for
* hardware-accelerated decoding of MPEG-1/2, H.264 and VC-1.
*
* Copyright (C) 2008 NVIDIA
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_VDPAU_H
#define AVCODEC_VDPAU_H
/**
* @file
* @ingroup lavc_codec_hwaccel_vdpau
* Public libavcodec VDPAU header.
*/
/**
* @defgroup lavc_codec_hwaccel_vdpau VDPAU Decoder and Renderer
* @ingroup lavc_codec_hwaccel
*
* VDPAU hardware acceleration has two modules
* - VDPAU decoding
* - VDPAU presentation
*
* The VDPAU decoding module parses all headers using FFmpeg
* parsing mechanisms and uses VDPAU for the actual decoding.
*
* As per the current implementation, the actual decoding
* and rendering (API calls) are done as part of the VDPAU
* presentation (vo_vdpau.c) module.
*
* @{
*/
#include <vdpau/vdpau.h>
#include "libavutil/avconfig.h"
#include "libavutil/attributes.h"
#include "avcodec.h"
struct AVCodecContext;
struct AVFrame;
typedef int (*AVVDPAU_Render2)(struct AVCodecContext *, struct AVFrame *,
const VdpPictureInfo *, uint32_t,
const VdpBitstreamBuffer *);
/**
* This structure is used to share data between the libavcodec library and
* the client video application.
* The user shall allocate the structure via the av_alloc_vdpau_hwaccel
* function and make it available as
* AVCodecContext.hwaccel_context. Members can be set by the user once
* during initialization or through each AVCodecContext.get_buffer()
* function call. In any case, they must be valid prior to calling
* decoding functions.
*
* The size of this structure is not a part of the public ABI and must not
* be used outside of libavcodec. Use av_vdpau_alloc_context() to allocate an
* AVVDPAUContext.
*/
typedef struct AVVDPAUContext {
/**
* VDPAU decoder handle
*
* Set by user.
*/
VdpDecoder decoder;
/**
* VDPAU decoder render callback
*
* Set by the user.
*/
VdpDecoderRender *render;
AVVDPAU_Render2 render2;
} AVVDPAUContext;
/**
* @brief allocation function for AVVDPAUContext
*
* Allows extending the struct without breaking API/ABI
*/
AVVDPAUContext *av_alloc_vdpaucontext(void);
AVVDPAU_Render2 av_vdpau_hwaccel_get_render2(const AVVDPAUContext *);
void av_vdpau_hwaccel_set_render2(AVVDPAUContext *, AVVDPAU_Render2);
/**
* Associate a VDPAU device with a codec context for hardware acceleration.
* This function is meant to be called from the get_format() codec callback,
* or earlier. It can also be called after avcodec_flush_buffers() to change
* the underlying VDPAU device mid-stream (e.g. to recover from non-transparent
* display preemption).
*
* @note get_format() must return AV_PIX_FMT_VDPAU if this function completes
* successfully.
*
* @param avctx decoding context whose get_format() callback is invoked
* @param device VDPAU device handle to use for hardware acceleration
* @param get_proc_address VDPAU device driver
* @param flags zero of more OR'd AV_HWACCEL_FLAG_* flags
*
* @return 0 on success, an AVERROR code on failure.
*/
int av_vdpau_bind_context(AVCodecContext *avctx, VdpDevice device,
VdpGetProcAddress *get_proc_address, unsigned flags);
/**
* Gets the parameters to create an adequate VDPAU video surface for the codec
* context using VDPAU hardware decoding acceleration.
*
* @note Behavior is undefined if the context was not successfully bound to a
* VDPAU device using av_vdpau_bind_context().
*
* @param avctx the codec context being used for decoding the stream
* @param type storage space for the VDPAU video surface chroma type
* (or NULL to ignore)
* @param width storage space for the VDPAU video surface pixel width
* (or NULL to ignore)
* @param height storage space for the VDPAU video surface pixel height
* (or NULL to ignore)
*
* @return 0 on success, a negative AVERROR code on failure.
*/
int av_vdpau_get_surface_parameters(AVCodecContext *avctx, VdpChromaType *type,
uint32_t *width, uint32_t *height);
/**
* Allocate an AVVDPAUContext.
*
* @return Newly-allocated AVVDPAUContext or NULL on failure.
*/
AVVDPAUContext *av_vdpau_alloc_context(void);
/** @} */
#endif /* AVCODEC_VDPAU_H */

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/*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_VERSION_H
#define AVCODEC_VERSION_H
/**
* @file
* @ingroup libavc
* Libavcodec version macros.
*/
#include "libavutil/version.h"
#include "version_major.h"
#define LIBAVCODEC_VERSION_MINOR 31
#define LIBAVCODEC_VERSION_MICRO 102
#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
LIBAVCODEC_VERSION_MINOR, \
LIBAVCODEC_VERSION_MICRO)
#define LIBAVCODEC_VERSION AV_VERSION(LIBAVCODEC_VERSION_MAJOR, \
LIBAVCODEC_VERSION_MINOR, \
LIBAVCODEC_VERSION_MICRO)
#define LIBAVCODEC_BUILD LIBAVCODEC_VERSION_INT
#define LIBAVCODEC_IDENT "Lavc" AV_STRINGIFY(LIBAVCODEC_VERSION)
#endif /* AVCODEC_VERSION_H */

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/*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_VERSION_MAJOR_H
#define AVCODEC_VERSION_MAJOR_H
/**
* @file
* @ingroup libavc
* Libavcodec version macros.
*/
#define LIBAVCODEC_VERSION_MAJOR 60
/**
* FF_API_* defines may be placed below to indicate public API that will be
* dropped at a future version bump. The defines themselves are not part of
* the public API and may change, break or disappear at any time.
*
* @note, when bumping the major version it is recommended to manually
* disable each FF_API_* in its own commit instead of disabling them all
* at once through the bump. This improves the git bisect-ability of the change.
*/
#define FF_API_INIT_PACKET (LIBAVCODEC_VERSION_MAJOR < 61)
#define FF_API_IDCT_NONE (LIBAVCODEC_VERSION_MAJOR < 61)
#define FF_API_SVTAV1_OPTS (LIBAVCODEC_VERSION_MAJOR < 61)
#define FF_API_AYUV_CODECID (LIBAVCODEC_VERSION_MAJOR < 61)
#define FF_API_VT_OUTPUT_CALLBACK (LIBAVCODEC_VERSION_MAJOR < 61)
#define FF_API_AVCODEC_CHROMA_POS (LIBAVCODEC_VERSION_MAJOR < 61)
#define FF_API_VT_HWACCEL_CONTEXT (LIBAVCODEC_VERSION_MAJOR < 61)
#define FF_API_AVCTX_FRAME_NUMBER (LIBAVCODEC_VERSION_MAJOR < 61)
#define FF_API_SLICE_OFFSET (LIBAVCODEC_VERSION_MAJOR < 61)
#define FF_API_SUBFRAMES (LIBAVCODEC_VERSION_MAJOR < 61)
#define FF_API_TICKS_PER_FRAME (LIBAVCODEC_VERSION_MAJOR < 61)
#define FF_API_DROPCHANGED (LIBAVCODEC_VERSION_MAJOR < 61)
#define FF_API_AVFFT (LIBAVCODEC_VERSION_MAJOR < 62)
#define FF_API_FF_PROFILE_LEVEL (LIBAVCODEC_VERSION_MAJOR < 62)
// reminder to remove CrystalHD decoders on next major bump
#define FF_CODEC_CRYSTAL_HD (LIBAVCODEC_VERSION_MAJOR < 61)
#endif /* AVCODEC_VERSION_MAJOR_H */

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/*
* Videotoolbox hardware acceleration
*
* copyright (c) 2012 Sebastien Zwickert
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_VIDEOTOOLBOX_H
#define AVCODEC_VIDEOTOOLBOX_H
/**
* @file
* @ingroup lavc_codec_hwaccel_videotoolbox
* Public libavcodec Videotoolbox header.
*/
/**
* @defgroup lavc_codec_hwaccel_videotoolbox VideoToolbox Decoder
* @ingroup lavc_codec_hwaccel
*
* Hardware accelerated decoding using VideoToolbox on Apple Platforms
*
* @{
*/
#include <stdint.h>
#define Picture QuickdrawPicture
#include <VideoToolbox/VideoToolbox.h>
#undef Picture
#include "libavcodec/avcodec.h"
#include "libavutil/attributes.h"
/**
* This struct holds all the information that needs to be passed
* between the caller and libavcodec for initializing Videotoolbox decoding.
* Its size is not a part of the public ABI, it must be allocated with
* av_videotoolbox_alloc_context() and freed with av_free().
*/
typedef struct AVVideotoolboxContext {
/**
* Videotoolbox decompression session object.
*/
VTDecompressionSessionRef session;
#if FF_API_VT_OUTPUT_CALLBACK
/**
* The output callback that must be passed to the session.
* Set by av_videottoolbox_default_init()
*/
attribute_deprecated
VTDecompressionOutputCallback output_callback;
#endif
/**
* CVPixelBuffer Format Type that Videotoolbox will use for decoded frames.
* set by the caller. If this is set to 0, then no specific format is
* requested from the decoder, and its native format is output.
*/
OSType cv_pix_fmt_type;
/**
* CoreMedia Format Description that Videotoolbox will use to create the decompression session.
*/
CMVideoFormatDescriptionRef cm_fmt_desc;
/**
* CoreMedia codec type that Videotoolbox will use to create the decompression session.
*/
int cm_codec_type;
} AVVideotoolboxContext;
#if FF_API_VT_HWACCEL_CONTEXT
/**
* Allocate and initialize a Videotoolbox context.
*
* This function should be called from the get_format() callback when the caller
* selects the AV_PIX_FMT_VIDETOOLBOX format. The caller must then create
* the decoder object (using the output callback provided by libavcodec) that
* will be used for Videotoolbox-accelerated decoding.
*
* When decoding with Videotoolbox is finished, the caller must destroy the decoder
* object and free the Videotoolbox context using av_free().
*
* @return the newly allocated context or NULL on failure
* @deprecated Use AVCodecContext.hw_frames_ctx or hw_device_ctx instead.
*/
attribute_deprecated
AVVideotoolboxContext *av_videotoolbox_alloc_context(void);
/**
* This is a convenience function that creates and sets up the Videotoolbox context using
* an internal implementation.
*
* @param avctx the corresponding codec context
*
* @return >= 0 on success, a negative AVERROR code on failure
* @deprecated Use AVCodecContext.hw_frames_ctx or hw_device_ctx instead.
*/
attribute_deprecated
int av_videotoolbox_default_init(AVCodecContext *avctx);
/**
* This is a convenience function that creates and sets up the Videotoolbox context using
* an internal implementation.
*
* @param avctx the corresponding codec context
* @param vtctx the Videotoolbox context to use
*
* @return >= 0 on success, a negative AVERROR code on failure
* @deprecated Use AVCodecContext.hw_frames_ctx or hw_device_ctx instead.
*/
attribute_deprecated
int av_videotoolbox_default_init2(AVCodecContext *avctx, AVVideotoolboxContext *vtctx);
/**
* This function must be called to free the Videotoolbox context initialized with
* av_videotoolbox_default_init().
*
* @param avctx the corresponding codec context
* @deprecated Use AVCodecContext.hw_frames_ctx or hw_device_ctx instead.
*/
attribute_deprecated
void av_videotoolbox_default_free(AVCodecContext *avctx);
#endif /* FF_API_VT_HWACCEL_CONTEXT */
/**
* @}
*/
#endif /* AVCODEC_VIDEOTOOLBOX_H */

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/*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file
* A public API for Vorbis parsing
*
* Determines the duration for each packet.
*/
#ifndef AVCODEC_VORBIS_PARSER_H
#define AVCODEC_VORBIS_PARSER_H
#include <stdint.h>
typedef struct AVVorbisParseContext AVVorbisParseContext;
/**
* Allocate and initialize the Vorbis parser using headers in the extradata.
*/
AVVorbisParseContext *av_vorbis_parse_init(const uint8_t *extradata,
int extradata_size);
/**
* Free the parser and everything associated with it.
*/
void av_vorbis_parse_free(AVVorbisParseContext **s);
#define VORBIS_FLAG_HEADER 0x00000001
#define VORBIS_FLAG_COMMENT 0x00000002
#define VORBIS_FLAG_SETUP 0x00000004
/**
* Get the duration for a Vorbis packet.
*
* If @p flags is @c NULL,
* special frames are considered invalid.
*
* @param s Vorbis parser context
* @param buf buffer containing a Vorbis frame
* @param buf_size size of the buffer
* @param flags flags for special frames
*/
int av_vorbis_parse_frame_flags(AVVorbisParseContext *s, const uint8_t *buf,
int buf_size, int *flags);
/**
* Get the duration for a Vorbis packet.
*
* @param s Vorbis parser context
* @param buf buffer containing a Vorbis frame
* @param buf_size size of the buffer
*/
int av_vorbis_parse_frame(AVVorbisParseContext *s, const uint8_t *buf,
int buf_size);
void av_vorbis_parse_reset(AVVorbisParseContext *s);
#endif /* AVCODEC_VORBIS_PARSER_H */

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/*
* Copyright (C) 2003 Ivan Kalvachev
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVCODEC_XVMC_H
#define AVCODEC_XVMC_H
/**
* @file
* @ingroup lavc_codec_hwaccel_xvmc
* Public libavcodec XvMC header.
*/
#pragma message("XvMC is no longer supported; this header is deprecated and will be removed")
#include <X11/extensions/XvMC.h>
#include "libavutil/attributes.h"
#include "avcodec.h"
/**
* @defgroup lavc_codec_hwaccel_xvmc XvMC
* @ingroup lavc_codec_hwaccel
*
* @{
*/
#define AV_XVMC_ID 0x1DC711C0 /**< special value to ensure that regular pixel routines haven't corrupted the struct
the number is 1337 speak for the letters IDCT MCo (motion compensation) */
struct attribute_deprecated xvmc_pix_fmt {
/** The field contains the special constant value AV_XVMC_ID.
It is used as a test that the application correctly uses the API,
and that there is no corruption caused by pixel routines.
- application - set during initialization
- libavcodec - unchanged
*/
int xvmc_id;
/** Pointer to the block array allocated by XvMCCreateBlocks().
The array has to be freed by XvMCDestroyBlocks().
Each group of 64 values represents one data block of differential
pixel information (in MoCo mode) or coefficients for IDCT.
- application - set the pointer during initialization
- libavcodec - fills coefficients/pixel data into the array
*/
short* data_blocks;
/** Pointer to the macroblock description array allocated by
XvMCCreateMacroBlocks() and freed by XvMCDestroyMacroBlocks().
- application - set the pointer during initialization
- libavcodec - fills description data into the array
*/
XvMCMacroBlock* mv_blocks;
/** Number of macroblock descriptions that can be stored in the mv_blocks
array.
- application - set during initialization
- libavcodec - unchanged
*/
int allocated_mv_blocks;
/** Number of blocks that can be stored at once in the data_blocks array.
- application - set during initialization
- libavcodec - unchanged
*/
int allocated_data_blocks;
/** Indicate that the hardware would interpret data_blocks as IDCT
coefficients and perform IDCT on them.
- application - set during initialization
- libavcodec - unchanged
*/
int idct;
/** In MoCo mode it indicates that intra macroblocks are assumed to be in
unsigned format; same as the XVMC_INTRA_UNSIGNED flag.
- application - set during initialization
- libavcodec - unchanged
*/
int unsigned_intra;
/** Pointer to the surface allocated by XvMCCreateSurface().
It has to be freed by XvMCDestroySurface() on application exit.
It identifies the frame and its state on the video hardware.
- application - set during initialization
- libavcodec - unchanged
*/
XvMCSurface* p_surface;
/** Set by the decoder before calling ff_draw_horiz_band(),
needed by the XvMCRenderSurface function. */
//@{
/** Pointer to the surface used as past reference
- application - unchanged
- libavcodec - set
*/
XvMCSurface* p_past_surface;
/** Pointer to the surface used as future reference
- application - unchanged
- libavcodec - set
*/
XvMCSurface* p_future_surface;
/** top/bottom field or frame
- application - unchanged
- libavcodec - set
*/
unsigned int picture_structure;
/** XVMC_SECOND_FIELD - 1st or 2nd field in the sequence
- application - unchanged
- libavcodec - set
*/
unsigned int flags;
//}@
/** Number of macroblock descriptions in the mv_blocks array
that have already been passed to the hardware.
- application - zeroes it on get_buffer().
A successful ff_draw_horiz_band() may increment it
with filled_mb_block_num or zero both.
- libavcodec - unchanged
*/
int start_mv_blocks_num;
/** Number of new macroblock descriptions in the mv_blocks array (after
start_mv_blocks_num) that are filled by libavcodec and have to be
passed to the hardware.
- application - zeroes it on get_buffer() or after successful
ff_draw_horiz_band().
- libavcodec - increment with one of each stored MB
*/
int filled_mv_blocks_num;
/** Number of the next free data block; one data block consists of
64 short values in the data_blocks array.
All blocks before this one have already been claimed by placing their
position into the corresponding block description structure field,
that are part of the mv_blocks array.
- application - zeroes it on get_buffer().
A successful ff_draw_horiz_band() may zero it together
with start_mb_blocks_num.
- libavcodec - each decoded macroblock increases it by the number
of coded blocks it contains.
*/
int next_free_data_block_num;
};
/**
* @}
*/
#endif /* AVCODEC_XVMC_H */

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/*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVDEVICE_AVDEVICE_H
#define AVDEVICE_AVDEVICE_H
#include "version_major.h"
#ifndef HAVE_AV_CONFIG_H
/* When included as part of the ffmpeg build, only include the major version
* to avoid unnecessary rebuilds. When included externally, keep including
* the full version information. */
#include "version.h"
#endif
/**
* @file
* @ingroup lavd
* Main libavdevice API header
*/
/**
* @defgroup lavd libavdevice
* Special devices muxing/demuxing library.
*
* Libavdevice is a complementary library to @ref libavf "libavformat". It
* provides various "special" platform-specific muxers and demuxers, e.g. for
* grabbing devices, audio capture and playback etc. As a consequence, the
* (de)muxers in libavdevice are of the AVFMT_NOFILE type (they use their own
* I/O functions). The filename passed to avformat_open_input() often does not
* refer to an actually existing file, but has some special device-specific
* meaning - e.g. for xcbgrab it is the display name.
*
* To use libavdevice, simply call avdevice_register_all() to register all
* compiled muxers and demuxers. They all use standard libavformat API.
*
* @{
*/
#include "libavutil/log.h"
#include "libavutil/opt.h"
#include "libavutil/dict.h"
#include "libavformat/avformat.h"
/**
* Return the LIBAVDEVICE_VERSION_INT constant.
*/
unsigned avdevice_version(void);
/**
* Return the libavdevice build-time configuration.
*/
const char *avdevice_configuration(void);
/**
* Return the libavdevice license.
*/
const char *avdevice_license(void);
/**
* Initialize libavdevice and register all the input and output devices.
*/
void avdevice_register_all(void);
/**
* Audio input devices iterator.
*
* If d is NULL, returns the first registered input audio/video device,
* if d is non-NULL, returns the next registered input audio/video device after d
* or NULL if d is the last one.
*/
const AVInputFormat *av_input_audio_device_next(const AVInputFormat *d);
/**
* Video input devices iterator.
*
* If d is NULL, returns the first registered input audio/video device,
* if d is non-NULL, returns the next registered input audio/video device after d
* or NULL if d is the last one.
*/
const AVInputFormat *av_input_video_device_next(const AVInputFormat *d);
/**
* Audio output devices iterator.
*
* If d is NULL, returns the first registered output audio/video device,
* if d is non-NULL, returns the next registered output audio/video device after d
* or NULL if d is the last one.
*/
const AVOutputFormat *av_output_audio_device_next(const AVOutputFormat *d);
/**
* Video output devices iterator.
*
* If d is NULL, returns the first registered output audio/video device,
* if d is non-NULL, returns the next registered output audio/video device after d
* or NULL if d is the last one.
*/
const AVOutputFormat *av_output_video_device_next(const AVOutputFormat *d);
typedef struct AVDeviceRect {
int x; /**< x coordinate of top left corner */
int y; /**< y coordinate of top left corner */
int width; /**< width */
int height; /**< height */
} AVDeviceRect;
/**
* Message types used by avdevice_app_to_dev_control_message().
*/
enum AVAppToDevMessageType {
/**
* Dummy message.
*/
AV_APP_TO_DEV_NONE = MKBETAG('N','O','N','E'),
/**
* Window size change message.
*
* Message is sent to the device every time the application changes the size
* of the window device renders to.
* Message should also be sent right after window is created.
*
* data: AVDeviceRect: new window size.
*/
AV_APP_TO_DEV_WINDOW_SIZE = MKBETAG('G','E','O','M'),
/**
* Repaint request message.
*
* Message is sent to the device when window has to be repainted.
*
* data: AVDeviceRect: area required to be repainted.
* NULL: whole area is required to be repainted.
*/
AV_APP_TO_DEV_WINDOW_REPAINT = MKBETAG('R','E','P','A'),
/**
* Request pause/play.
*
* Application requests pause/unpause playback.
* Mostly usable with devices that have internal buffer.
* By default devices are not paused.
*
* data: NULL
*/
AV_APP_TO_DEV_PAUSE = MKBETAG('P', 'A', 'U', ' '),
AV_APP_TO_DEV_PLAY = MKBETAG('P', 'L', 'A', 'Y'),
AV_APP_TO_DEV_TOGGLE_PAUSE = MKBETAG('P', 'A', 'U', 'T'),
/**
* Volume control message.
*
* Set volume level. It may be device-dependent if volume
* is changed per stream or system wide. Per stream volume
* change is expected when possible.
*
* data: double: new volume with range of 0.0 - 1.0.
*/
AV_APP_TO_DEV_SET_VOLUME = MKBETAG('S', 'V', 'O', 'L'),
/**
* Mute control messages.
*
* Change mute state. It may be device-dependent if mute status
* is changed per stream or system wide. Per stream mute status
* change is expected when possible.
*
* data: NULL.
*/
AV_APP_TO_DEV_MUTE = MKBETAG(' ', 'M', 'U', 'T'),
AV_APP_TO_DEV_UNMUTE = MKBETAG('U', 'M', 'U', 'T'),
AV_APP_TO_DEV_TOGGLE_MUTE = MKBETAG('T', 'M', 'U', 'T'),
/**
* Get volume/mute messages.
*
* Force the device to send AV_DEV_TO_APP_VOLUME_LEVEL_CHANGED or
* AV_DEV_TO_APP_MUTE_STATE_CHANGED command respectively.
*
* data: NULL.
*/
AV_APP_TO_DEV_GET_VOLUME = MKBETAG('G', 'V', 'O', 'L'),
AV_APP_TO_DEV_GET_MUTE = MKBETAG('G', 'M', 'U', 'T'),
};
/**
* Message types used by avdevice_dev_to_app_control_message().
*/
enum AVDevToAppMessageType {
/**
* Dummy message.
*/
AV_DEV_TO_APP_NONE = MKBETAG('N','O','N','E'),
/**
* Create window buffer message.
*
* Device requests to create a window buffer. Exact meaning is device-
* and application-dependent. Message is sent before rendering first
* frame and all one-shot initializations should be done here.
* Application is allowed to ignore preferred window buffer size.
*
* @note: Application is obligated to inform about window buffer size
* with AV_APP_TO_DEV_WINDOW_SIZE message.
*
* data: AVDeviceRect: preferred size of the window buffer.
* NULL: no preferred size of the window buffer.
*/
AV_DEV_TO_APP_CREATE_WINDOW_BUFFER = MKBETAG('B','C','R','E'),
/**
* Prepare window buffer message.
*
* Device requests to prepare a window buffer for rendering.
* Exact meaning is device- and application-dependent.
* Message is sent before rendering of each frame.
*
* data: NULL.
*/
AV_DEV_TO_APP_PREPARE_WINDOW_BUFFER = MKBETAG('B','P','R','E'),
/**
* Display window buffer message.
*
* Device requests to display a window buffer.
* Message is sent when new frame is ready to be displayed.
* Usually buffers need to be swapped in handler of this message.
*
* data: NULL.
*/
AV_DEV_TO_APP_DISPLAY_WINDOW_BUFFER = MKBETAG('B','D','I','S'),
/**
* Destroy window buffer message.
*
* Device requests to destroy a window buffer.
* Message is sent when device is about to be destroyed and window
* buffer is not required anymore.
*
* data: NULL.
*/
AV_DEV_TO_APP_DESTROY_WINDOW_BUFFER = MKBETAG('B','D','E','S'),
/**
* Buffer fullness status messages.
*
* Device signals buffer overflow/underflow.
*
* data: NULL.
*/
AV_DEV_TO_APP_BUFFER_OVERFLOW = MKBETAG('B','O','F','L'),
AV_DEV_TO_APP_BUFFER_UNDERFLOW = MKBETAG('B','U','F','L'),
/**
* Buffer readable/writable.
*
* Device informs that buffer is readable/writable.
* When possible, device informs how many bytes can be read/write.
*
* @warning Device may not inform when number of bytes than can be read/write changes.
*
* data: int64_t: amount of bytes available to read/write.
* NULL: amount of bytes available to read/write is not known.
*/
AV_DEV_TO_APP_BUFFER_READABLE = MKBETAG('B','R','D',' '),
AV_DEV_TO_APP_BUFFER_WRITABLE = MKBETAG('B','W','R',' '),
/**
* Mute state change message.
*
* Device informs that mute state has changed.
*
* data: int: 0 for not muted state, non-zero for muted state.
*/
AV_DEV_TO_APP_MUTE_STATE_CHANGED = MKBETAG('C','M','U','T'),
/**
* Volume level change message.
*
* Device informs that volume level has changed.
*
* data: double: new volume with range of 0.0 - 1.0.
*/
AV_DEV_TO_APP_VOLUME_LEVEL_CHANGED = MKBETAG('C','V','O','L'),
};
/**
* Send control message from application to device.
*
* @param s device context.
* @param type message type.
* @param data message data. Exact type depends on message type.
* @param data_size size of message data.
* @return >= 0 on success, negative on error.
* AVERROR(ENOSYS) when device doesn't implement handler of the message.
*/
int avdevice_app_to_dev_control_message(struct AVFormatContext *s,
enum AVAppToDevMessageType type,
void *data, size_t data_size);
/**
* Send control message from device to application.
*
* @param s device context.
* @param type message type.
* @param data message data. Can be NULL.
* @param data_size size of message data.
* @return >= 0 on success, negative on error.
* AVERROR(ENOSYS) when application doesn't implement handler of the message.
*/
int avdevice_dev_to_app_control_message(struct AVFormatContext *s,
enum AVDevToAppMessageType type,
void *data, size_t data_size);
/**
* Structure describes basic parameters of the device.
*/
typedef struct AVDeviceInfo {
char *device_name; /**< device name, format depends on device */
char *device_description; /**< human friendly name */
enum AVMediaType *media_types; /**< array indicating what media types(s), if any, a device can provide. If null, cannot provide any */
int nb_media_types; /**< length of media_types array, 0 if device cannot provide any media types */
} AVDeviceInfo;
/**
* List of devices.
*/
typedef struct AVDeviceInfoList {
AVDeviceInfo **devices; /**< list of autodetected devices */
int nb_devices; /**< number of autodetected devices */
int default_device; /**< index of default device or -1 if no default */
} AVDeviceInfoList;
/**
* List devices.
*
* Returns available device names and their parameters.
*
* @note: Some devices may accept system-dependent device names that cannot be
* autodetected. The list returned by this function cannot be assumed to
* be always completed.
*
* @param s device context.
* @param[out] device_list list of autodetected devices.
* @return count of autodetected devices, negative on error.
*/
int avdevice_list_devices(struct AVFormatContext *s, AVDeviceInfoList **device_list);
/**
* Convenient function to free result of avdevice_list_devices().
*
* @param device_list device list to be freed.
*/
void avdevice_free_list_devices(AVDeviceInfoList **device_list);
/**
* List devices.
*
* Returns available device names and their parameters.
* These are convinient wrappers for avdevice_list_devices().
* Device context is allocated and deallocated internally.
*
* @param device device format. May be NULL if device name is set.
* @param device_name device name. May be NULL if device format is set.
* @param device_options An AVDictionary filled with device-private options. May be NULL.
* The same options must be passed later to avformat_write_header() for output
* devices or avformat_open_input() for input devices, or at any other place
* that affects device-private options.
* @param[out] device_list list of autodetected devices
* @return count of autodetected devices, negative on error.
* @note device argument takes precedence over device_name when both are set.
*/
int avdevice_list_input_sources(const AVInputFormat *device, const char *device_name,
AVDictionary *device_options, AVDeviceInfoList **device_list);
int avdevice_list_output_sinks(const AVOutputFormat *device, const char *device_name,
AVDictionary *device_options, AVDeviceInfoList **device_list);
/**
* @}
*/
#endif /* AVDEVICE_AVDEVICE_H */

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/*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVDEVICE_VERSION_H
#define AVDEVICE_VERSION_H
/**
* @file
* @ingroup lavd
* Libavdevice version macros
*/
#include "libavutil/version.h"
#include "version_major.h"
#define LIBAVDEVICE_VERSION_MINOR 3
#define LIBAVDEVICE_VERSION_MICRO 100
#define LIBAVDEVICE_VERSION_INT AV_VERSION_INT(LIBAVDEVICE_VERSION_MAJOR, \
LIBAVDEVICE_VERSION_MINOR, \
LIBAVDEVICE_VERSION_MICRO)
#define LIBAVDEVICE_VERSION AV_VERSION(LIBAVDEVICE_VERSION_MAJOR, \
LIBAVDEVICE_VERSION_MINOR, \
LIBAVDEVICE_VERSION_MICRO)
#define LIBAVDEVICE_BUILD LIBAVDEVICE_VERSION_INT
#define LIBAVDEVICE_IDENT "Lavd" AV_STRINGIFY(LIBAVDEVICE_VERSION)
#endif /* AVDEVICE_VERSION_H */

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/*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVDEVICE_VERSION_MAJOR_H
#define AVDEVICE_VERSION_MAJOR_H
/**
* @file
* @ingroup lavd
* Libavdevice version macros
*/
#define LIBAVDEVICE_VERSION_MAJOR 60
/**
* FF_API_* defines may be placed below to indicate public API that will be
* dropped at a future version bump. The defines themselves are not part of
* the public API and may change, break or disappear at any time.
*/
#endif /* AVDEVICE_VERSION_MAJOR_H */

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/*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVFILTER_BUFFERSINK_H
#define AVFILTER_BUFFERSINK_H
/**
* @file
* @ingroup lavfi_buffersink
* memory buffer sink API for audio and video
*/
#include "avfilter.h"
/**
* @defgroup lavfi_buffersink Buffer sink API
* @ingroup lavfi
* @{
*
* The buffersink and abuffersink filters are there to connect filter graphs
* to applications. They have a single input, connected to the graph, and no
* output. Frames must be extracted using av_buffersink_get_frame() or
* av_buffersink_get_samples().
*
* The format negotiated by the graph during configuration can be obtained
* using the accessor functions:
* - av_buffersink_get_time_base(),
* - av_buffersink_get_format(),
* - av_buffersink_get_frame_rate(),
* - av_buffersink_get_w(),
* - av_buffersink_get_h(),
* - av_buffersink_get_sample_aspect_ratio(),
* - av_buffersink_get_channels(),
* - av_buffersink_get_ch_layout(),
* - av_buffersink_get_sample_rate().
*
* The layout returned by av_buffersink_get_ch_layout() must de uninitialized
* by the caller.
*
* The format can be constrained by setting options, using av_opt_set() and
* related functions with the AV_OPT_SEARCH_CHILDREN flag.
* - pix_fmts (int list),
* - sample_fmts (int list),
* - sample_rates (int list),
* - ch_layouts (string),
* - channel_counts (int list),
* - all_channel_counts (bool).
* Most of these options are of type binary, and should be set using
* av_opt_set_int_list() or av_opt_set_bin(). If they are not set, all
* corresponding formats are accepted.
*
* As a special case, if ch_layouts is not set, all valid channel layouts are
* accepted except for UNSPEC layouts, unless all_channel_counts is set.
*/
/**
* Get a frame with filtered data from sink and put it in frame.
*
* @param ctx pointer to a buffersink or abuffersink filter context.
* @param frame pointer to an allocated frame that will be filled with data.
* The data must be freed using av_frame_unref() / av_frame_free()
* @param flags a combination of AV_BUFFERSINK_FLAG_* flags
*
* @return >= 0 in for success, a negative AVERROR code for failure.
*/
int av_buffersink_get_frame_flags(AVFilterContext *ctx, AVFrame *frame, int flags);
/**
* Tell av_buffersink_get_buffer_ref() to read video/samples buffer
* reference, but not remove it from the buffer. This is useful if you
* need only to read a video/samples buffer, without to fetch it.
*/
#define AV_BUFFERSINK_FLAG_PEEK 1
/**
* Tell av_buffersink_get_buffer_ref() not to request a frame from its input.
* If a frame is already buffered, it is read (and removed from the buffer),
* but if no frame is present, return AVERROR(EAGAIN).
*/
#define AV_BUFFERSINK_FLAG_NO_REQUEST 2
/**
* Set the frame size for an audio buffer sink.
*
* All calls to av_buffersink_get_buffer_ref will return a buffer with
* exactly the specified number of samples, or AVERROR(EAGAIN) if there is
* not enough. The last buffer at EOF will be padded with 0.
*/
void av_buffersink_set_frame_size(AVFilterContext *ctx, unsigned frame_size);
/**
* @defgroup lavfi_buffersink_accessors Buffer sink accessors
* Get the properties of the stream
* @{
*/
enum AVMediaType av_buffersink_get_type (const AVFilterContext *ctx);
AVRational av_buffersink_get_time_base (const AVFilterContext *ctx);
int av_buffersink_get_format (const AVFilterContext *ctx);
AVRational av_buffersink_get_frame_rate (const AVFilterContext *ctx);
int av_buffersink_get_w (const AVFilterContext *ctx);
int av_buffersink_get_h (const AVFilterContext *ctx);
AVRational av_buffersink_get_sample_aspect_ratio (const AVFilterContext *ctx);
int av_buffersink_get_channels (const AVFilterContext *ctx);
#if FF_API_OLD_CHANNEL_LAYOUT
attribute_deprecated
uint64_t av_buffersink_get_channel_layout (const AVFilterContext *ctx);
#endif
int av_buffersink_get_ch_layout (const AVFilterContext *ctx,
AVChannelLayout *ch_layout);
int av_buffersink_get_sample_rate (const AVFilterContext *ctx);
AVBufferRef * av_buffersink_get_hw_frames_ctx (const AVFilterContext *ctx);
/** @} */
/**
* Get a frame with filtered data from sink and put it in frame.
*
* @param ctx pointer to a context of a buffersink or abuffersink AVFilter.
* @param frame pointer to an allocated frame that will be filled with data.
* The data must be freed using av_frame_unref() / av_frame_free()
*
* @return
* - >= 0 if a frame was successfully returned.
* - AVERROR(EAGAIN) if no frames are available at this point; more
* input frames must be added to the filtergraph to get more output.
* - AVERROR_EOF if there will be no more output frames on this sink.
* - A different negative AVERROR code in other failure cases.
*/
int av_buffersink_get_frame(AVFilterContext *ctx, AVFrame *frame);
/**
* Same as av_buffersink_get_frame(), but with the ability to specify the number
* of samples read. This function is less efficient than
* av_buffersink_get_frame(), because it copies the data around.
*
* @param ctx pointer to a context of the abuffersink AVFilter.
* @param frame pointer to an allocated frame that will be filled with data.
* The data must be freed using av_frame_unref() / av_frame_free()
* frame will contain exactly nb_samples audio samples, except at
* the end of stream, when it can contain less than nb_samples.
*
* @return The return codes have the same meaning as for
* av_buffersink_get_frame().
*
* @warning do not mix this function with av_buffersink_get_frame(). Use only one or
* the other with a single sink, not both.
*/
int av_buffersink_get_samples(AVFilterContext *ctx, AVFrame *frame, int nb_samples);
/**
* @}
*/
#endif /* AVFILTER_BUFFERSINK_H */

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/*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVFILTER_BUFFERSRC_H
#define AVFILTER_BUFFERSRC_H
/**
* @file
* @ingroup lavfi_buffersrc
* Memory buffer source API.
*/
#include "avfilter.h"
/**
* @defgroup lavfi_buffersrc Buffer source API
* @ingroup lavfi
* @{
*/
enum {
/**
* Do not check for format changes.
*/
AV_BUFFERSRC_FLAG_NO_CHECK_FORMAT = 1,
/**
* Immediately push the frame to the output.
*/
AV_BUFFERSRC_FLAG_PUSH = 4,
/**
* Keep a reference to the frame.
* If the frame if reference-counted, create a new reference; otherwise
* copy the frame data.
*/
AV_BUFFERSRC_FLAG_KEEP_REF = 8,
};
/**
* Get the number of failed requests.
*
* A failed request is when the request_frame method is called while no
* frame is present in the buffer.
* The number is reset when a frame is added.
*/
unsigned av_buffersrc_get_nb_failed_requests(AVFilterContext *buffer_src);
/**
* This structure contains the parameters describing the frames that will be
* passed to this filter.
*
* It should be allocated with av_buffersrc_parameters_alloc() and freed with
* av_free(). All the allocated fields in it remain owned by the caller.
*/
typedef struct AVBufferSrcParameters {
/**
* video: the pixel format, value corresponds to enum AVPixelFormat
* audio: the sample format, value corresponds to enum AVSampleFormat
*/
int format;
/**
* The timebase to be used for the timestamps on the input frames.
*/
AVRational time_base;
/**
* Video only, the display dimensions of the input frames.
*/
int width, height;
/**
* Video only, the sample (pixel) aspect ratio.
*/
AVRational sample_aspect_ratio;
/**
* Video only, the frame rate of the input video. This field must only be
* set to a non-zero value if input stream has a known constant framerate
* and should be left at its initial value if the framerate is variable or
* unknown.
*/
AVRational frame_rate;
/**
* Video with a hwaccel pixel format only. This should be a reference to an
* AVHWFramesContext instance describing the input frames.
*/
AVBufferRef *hw_frames_ctx;
/**
* Audio only, the audio sampling rate in samples per second.
*/
int sample_rate;
#if FF_API_OLD_CHANNEL_LAYOUT
/**
* Audio only, the audio channel layout
* @deprecated use ch_layout
*/
attribute_deprecated
uint64_t channel_layout;
#endif
/**
* Audio only, the audio channel layout
*/
AVChannelLayout ch_layout;
} AVBufferSrcParameters;
/**
* Allocate a new AVBufferSrcParameters instance. It should be freed by the
* caller with av_free().
*/
AVBufferSrcParameters *av_buffersrc_parameters_alloc(void);
/**
* Initialize the buffersrc or abuffersrc filter with the provided parameters.
* This function may be called multiple times, the later calls override the
* previous ones. Some of the parameters may also be set through AVOptions, then
* whatever method is used last takes precedence.
*
* @param ctx an instance of the buffersrc or abuffersrc filter
* @param param the stream parameters. The frames later passed to this filter
* must conform to those parameters. All the allocated fields in
* param remain owned by the caller, libavfilter will make internal
* copies or references when necessary.
* @return 0 on success, a negative AVERROR code on failure.
*/
int av_buffersrc_parameters_set(AVFilterContext *ctx, AVBufferSrcParameters *param);
/**
* Add a frame to the buffer source.
*
* @param ctx an instance of the buffersrc filter
* @param frame frame to be added. If the frame is reference counted, this
* function will make a new reference to it. Otherwise the frame data will be
* copied.
*
* @return 0 on success, a negative AVERROR on error
*
* This function is equivalent to av_buffersrc_add_frame_flags() with the
* AV_BUFFERSRC_FLAG_KEEP_REF flag.
*/
av_warn_unused_result
int av_buffersrc_write_frame(AVFilterContext *ctx, const AVFrame *frame);
/**
* Add a frame to the buffer source.
*
* @param ctx an instance of the buffersrc filter
* @param frame frame to be added. If the frame is reference counted, this
* function will take ownership of the reference(s) and reset the frame.
* Otherwise the frame data will be copied. If this function returns an error,
* the input frame is not touched.
*
* @return 0 on success, a negative AVERROR on error.
*
* @note the difference between this function and av_buffersrc_write_frame() is
* that av_buffersrc_write_frame() creates a new reference to the input frame,
* while this function takes ownership of the reference passed to it.
*
* This function is equivalent to av_buffersrc_add_frame_flags() without the
* AV_BUFFERSRC_FLAG_KEEP_REF flag.
*/
av_warn_unused_result
int av_buffersrc_add_frame(AVFilterContext *ctx, AVFrame *frame);
/**
* Add a frame to the buffer source.
*
* By default, if the frame is reference-counted, this function will take
* ownership of the reference(s) and reset the frame. This can be controlled
* using the flags.
*
* If this function returns an error, the input frame is not touched.
*
* @param buffer_src pointer to a buffer source context
* @param frame a frame, or NULL to mark EOF
* @param flags a combination of AV_BUFFERSRC_FLAG_*
* @return >= 0 in case of success, a negative AVERROR code
* in case of failure
*/
av_warn_unused_result
int av_buffersrc_add_frame_flags(AVFilterContext *buffer_src,
AVFrame *frame, int flags);
/**
* Close the buffer source after EOF.
*
* This is similar to passing NULL to av_buffersrc_add_frame_flags()
* except it takes the timestamp of the EOF, i.e. the timestamp of the end
* of the last frame.
*/
int av_buffersrc_close(AVFilterContext *ctx, int64_t pts, unsigned flags);
/**
* @}
*/
#endif /* AVFILTER_BUFFERSRC_H */

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/*
* Version macros.
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVFILTER_VERSION_H
#define AVFILTER_VERSION_H
/**
* @file
* @ingroup lavfi
* Libavfilter version macros
*/
#include "libavutil/version.h"
#include "version_major.h"
#define LIBAVFILTER_VERSION_MINOR 12
#define LIBAVFILTER_VERSION_MICRO 100
#define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
LIBAVFILTER_VERSION_MINOR, \
LIBAVFILTER_VERSION_MICRO)
#define LIBAVFILTER_VERSION AV_VERSION(LIBAVFILTER_VERSION_MAJOR, \
LIBAVFILTER_VERSION_MINOR, \
LIBAVFILTER_VERSION_MICRO)
#define LIBAVFILTER_BUILD LIBAVFILTER_VERSION_INT
#define LIBAVFILTER_IDENT "Lavfi" AV_STRINGIFY(LIBAVFILTER_VERSION)
#endif /* AVFILTER_VERSION_H */

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/*
* Version macros.
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVFILTER_VERSION_MAJOR_H
#define AVFILTER_VERSION_MAJOR_H
/**
* @file
* @ingroup lavfi
* Libavfilter version macros
*/
#define LIBAVFILTER_VERSION_MAJOR 9
/**
* FF_API_* defines may be placed below to indicate public API that will be
* dropped at a future version bump. The defines themselves are not part of
* the public API and may change, break or disappear at any time.
*/
#define FF_API_LIBPLACEBO_OPTS (LIBAVFILTER_VERSION_MAJOR < 10)
#endif /* AVFILTER_VERSION_MAJOR_H */

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/*
* copyright (c) 2001 Fabrice Bellard
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVFORMAT_AVIO_H
#define AVFORMAT_AVIO_H
/**
* @file
* @ingroup lavf_io
* Buffered I/O operations
*/
#include <stdint.h>
#include <stdio.h>
#include "libavutil/attributes.h"
#include "libavutil/dict.h"
#include "libavutil/log.h"
#include "libavformat/version_major.h"
/**
* Seeking works like for a local file.
*/
#define AVIO_SEEKABLE_NORMAL (1 << 0)
/**
* Seeking by timestamp with avio_seek_time() is possible.
*/
#define AVIO_SEEKABLE_TIME (1 << 1)
/**
* Callback for checking whether to abort blocking functions.
* AVERROR_EXIT is returned in this case by the interrupted
* function. During blocking operations, callback is called with
* opaque as parameter. If the callback returns 1, the
* blocking operation will be aborted.
*
* No members can be added to this struct without a major bump, if
* new elements have been added after this struct in AVFormatContext
* or AVIOContext.
*/
typedef struct AVIOInterruptCB {
int (*callback)(void*);
void *opaque;
} AVIOInterruptCB;
/**
* Directory entry types.
*/
enum AVIODirEntryType {
AVIO_ENTRY_UNKNOWN,
AVIO_ENTRY_BLOCK_DEVICE,
AVIO_ENTRY_CHARACTER_DEVICE,
AVIO_ENTRY_DIRECTORY,
AVIO_ENTRY_NAMED_PIPE,
AVIO_ENTRY_SYMBOLIC_LINK,
AVIO_ENTRY_SOCKET,
AVIO_ENTRY_FILE,
AVIO_ENTRY_SERVER,
AVIO_ENTRY_SHARE,
AVIO_ENTRY_WORKGROUP,
};
/**
* Describes single entry of the directory.
*
* Only name and type fields are guaranteed be set.
* Rest of fields are protocol or/and platform dependent and might be unknown.
*/
typedef struct AVIODirEntry {
char *name; /**< Filename */
int type; /**< Type of the entry */
int utf8; /**< Set to 1 when name is encoded with UTF-8, 0 otherwise.
Name can be encoded with UTF-8 even though 0 is set. */
int64_t size; /**< File size in bytes, -1 if unknown. */
int64_t modification_timestamp; /**< Time of last modification in microseconds since unix
epoch, -1 if unknown. */
int64_t access_timestamp; /**< Time of last access in microseconds since unix epoch,
-1 if unknown. */
int64_t status_change_timestamp; /**< Time of last status change in microseconds since unix
epoch, -1 if unknown. */
int64_t user_id; /**< User ID of owner, -1 if unknown. */
int64_t group_id; /**< Group ID of owner, -1 if unknown. */
int64_t filemode; /**< Unix file mode, -1 if unknown. */
} AVIODirEntry;
#if FF_API_AVIODIRCONTEXT
typedef struct AVIODirContext {
struct URLContext *url_context;
} AVIODirContext;
#else
typedef struct AVIODirContext AVIODirContext;
#endif
/**
* Different data types that can be returned via the AVIO
* write_data_type callback.
*/
enum AVIODataMarkerType {
/**
* Header data; this needs to be present for the stream to be decodeable.
*/
AVIO_DATA_MARKER_HEADER,
/**
* A point in the output bytestream where a decoder can start decoding
* (i.e. a keyframe). A demuxer/decoder given the data flagged with
* AVIO_DATA_MARKER_HEADER, followed by any AVIO_DATA_MARKER_SYNC_POINT,
* should give decodeable results.
*/
AVIO_DATA_MARKER_SYNC_POINT,
/**
* A point in the output bytestream where a demuxer can start parsing
* (for non self synchronizing bytestream formats). That is, any
* non-keyframe packet start point.
*/
AVIO_DATA_MARKER_BOUNDARY_POINT,
/**
* This is any, unlabelled data. It can either be a muxer not marking
* any positions at all, it can be an actual boundary/sync point
* that the muxer chooses not to mark, or a later part of a packet/fragment
* that is cut into multiple write callbacks due to limited IO buffer size.
*/
AVIO_DATA_MARKER_UNKNOWN,
/**
* Trailer data, which doesn't contain actual content, but only for
* finalizing the output file.
*/
AVIO_DATA_MARKER_TRAILER,
/**
* A point in the output bytestream where the underlying AVIOContext might
* flush the buffer depending on latency or buffering requirements. Typically
* means the end of a packet.
*/
AVIO_DATA_MARKER_FLUSH_POINT,
};
/**
* Bytestream IO Context.
* New public fields can be added with minor version bumps.
* Removal, reordering and changes to existing public fields require
* a major version bump.
* sizeof(AVIOContext) must not be used outside libav*.
*
* @note None of the function pointers in AVIOContext should be called
* directly, they should only be set by the client application
* when implementing custom I/O. Normally these are set to the
* function pointers specified in avio_alloc_context()
*/
typedef struct AVIOContext {
/**
* A class for private options.
*
* If this AVIOContext is created by avio_open2(), av_class is set and
* passes the options down to protocols.
*
* If this AVIOContext is manually allocated, then av_class may be set by
* the caller.
*
* warning -- this field can be NULL, be sure to not pass this AVIOContext
* to any av_opt_* functions in that case.
*/
const AVClass *av_class;
/*
* The following shows the relationship between buffer, buf_ptr,
* buf_ptr_max, buf_end, buf_size, and pos, when reading and when writing
* (since AVIOContext is used for both):
*
**********************************************************************************
* READING
**********************************************************************************
*
* | buffer_size |
* |---------------------------------------|
* | |
*
* buffer buf_ptr buf_end
* +---------------+-----------------------+
* |/ / / / / / / /|/ / / / / / /| |
* read buffer: |/ / consumed / | to be read /| |
* |/ / / / / / / /|/ / / / / / /| |
* +---------------+-----------------------+
*
* pos
* +-------------------------------------------+-----------------+
* input file: | | |
* +-------------------------------------------+-----------------+
*
*
**********************************************************************************
* WRITING
**********************************************************************************
*
* | buffer_size |
* |--------------------------------------|
* | |
*
* buf_ptr_max
* buffer (buf_ptr) buf_end
* +-----------------------+--------------+
* |/ / / / / / / / / / / /| |
* write buffer: | / / to be flushed / / | |
* |/ / / / / / / / / / / /| |
* +-----------------------+--------------+
* buf_ptr can be in this
* due to a backward seek
*
* pos
* +-------------+----------------------------------------------+
* output file: | | |
* +-------------+----------------------------------------------+
*
*/
unsigned char *buffer; /**< Start of the buffer. */
int buffer_size; /**< Maximum buffer size */
unsigned char *buf_ptr; /**< Current position in the buffer */
unsigned char *buf_end; /**< End of the data, may be less than
buffer+buffer_size if the read function returned
less data than requested, e.g. for streams where
no more data has been received yet. */
void *opaque; /**< A private pointer, passed to the read/write/seek/...
functions. */
int (*read_packet)(void *opaque, uint8_t *buf, int buf_size);
#if FF_API_AVIO_WRITE_NONCONST
int (*write_packet)(void *opaque, uint8_t *buf, int buf_size);
#else
int (*write_packet)(void *opaque, const uint8_t *buf, int buf_size);
#endif
int64_t (*seek)(void *opaque, int64_t offset, int whence);
int64_t pos; /**< position in the file of the current buffer */
int eof_reached; /**< true if was unable to read due to error or eof */
int error; /**< contains the error code or 0 if no error happened */
int write_flag; /**< true if open for writing */
int max_packet_size;
int min_packet_size; /**< Try to buffer at least this amount of data
before flushing it. */
unsigned long checksum;
unsigned char *checksum_ptr;
unsigned long (*update_checksum)(unsigned long checksum, const uint8_t *buf, unsigned int size);
/**
* Pause or resume playback for network streaming protocols - e.g. MMS.
*/
int (*read_pause)(void *opaque, int pause);
/**
* Seek to a given timestamp in stream with the specified stream_index.
* Needed for some network streaming protocols which don't support seeking
* to byte position.
*/
int64_t (*read_seek)(void *opaque, int stream_index,
int64_t timestamp, int flags);
/**
* A combination of AVIO_SEEKABLE_ flags or 0 when the stream is not seekable.
*/
int seekable;
/**
* avio_read and avio_write should if possible be satisfied directly
* instead of going through a buffer, and avio_seek will always
* call the underlying seek function directly.
*/
int direct;
/**
* ',' separated list of allowed protocols.
*/
const char *protocol_whitelist;
/**
* ',' separated list of disallowed protocols.
*/
const char *protocol_blacklist;
/**
* A callback that is used instead of write_packet.
*/
#if FF_API_AVIO_WRITE_NONCONST
int (*write_data_type)(void *opaque, uint8_t *buf, int buf_size,
enum AVIODataMarkerType type, int64_t time);
#else
int (*write_data_type)(void *opaque, const uint8_t *buf, int buf_size,
enum AVIODataMarkerType type, int64_t time);
#endif
/**
* If set, don't call write_data_type separately for AVIO_DATA_MARKER_BOUNDARY_POINT,
* but ignore them and treat them as AVIO_DATA_MARKER_UNKNOWN (to avoid needlessly
* small chunks of data returned from the callback).
*/
int ignore_boundary_point;
/**
* Maximum reached position before a backward seek in the write buffer,
* used keeping track of already written data for a later flush.
*/
unsigned char *buf_ptr_max;
/**
* Read-only statistic of bytes read for this AVIOContext.
*/
int64_t bytes_read;
/**
* Read-only statistic of bytes written for this AVIOContext.
*/
int64_t bytes_written;
} AVIOContext;
/**
* Return the name of the protocol that will handle the passed URL.
*
* NULL is returned if no protocol could be found for the given URL.
*
* @return Name of the protocol or NULL.
*/
const char *avio_find_protocol_name(const char *url);
/**
* Return AVIO_FLAG_* access flags corresponding to the access permissions
* of the resource in url, or a negative value corresponding to an
* AVERROR code in case of failure. The returned access flags are
* masked by the value in flags.
*
* @note This function is intrinsically unsafe, in the sense that the
* checked resource may change its existence or permission status from
* one call to another. Thus you should not trust the returned value,
* unless you are sure that no other processes are accessing the
* checked resource.
*/
int avio_check(const char *url, int flags);
/**
* Open directory for reading.
*
* @param s directory read context. Pointer to a NULL pointer must be passed.
* @param url directory to be listed.
* @param options A dictionary filled with protocol-private options. On return
* this parameter will be destroyed and replaced with a dictionary
* containing options that were not found. May be NULL.
* @return >=0 on success or negative on error.
*/
int avio_open_dir(AVIODirContext **s, const char *url, AVDictionary **options);
/**
* Get next directory entry.
*
* Returned entry must be freed with avio_free_directory_entry(). In particular
* it may outlive AVIODirContext.
*
* @param s directory read context.
* @param[out] next next entry or NULL when no more entries.
* @return >=0 on success or negative on error. End of list is not considered an
* error.
*/
int avio_read_dir(AVIODirContext *s, AVIODirEntry **next);
/**
* Close directory.
*
* @note Entries created using avio_read_dir() are not deleted and must be
* freeded with avio_free_directory_entry().
*
* @param s directory read context.
* @return >=0 on success or negative on error.
*/
int avio_close_dir(AVIODirContext **s);
/**
* Free entry allocated by avio_read_dir().
*
* @param entry entry to be freed.
*/
void avio_free_directory_entry(AVIODirEntry **entry);
/**
* Allocate and initialize an AVIOContext for buffered I/O. It must be later
* freed with avio_context_free().
*
* @param buffer Memory block for input/output operations via AVIOContext.
* The buffer must be allocated with av_malloc() and friends.
* It may be freed and replaced with a new buffer by libavformat.
* AVIOContext.buffer holds the buffer currently in use,
* which must be later freed with av_free().
* @param buffer_size The buffer size is very important for performance.
* For protocols with fixed blocksize it should be set to this blocksize.
* For others a typical size is a cache page, e.g. 4kb.
* @param write_flag Set to 1 if the buffer should be writable, 0 otherwise.
* @param opaque An opaque pointer to user-specific data.
* @param read_packet A function for refilling the buffer, may be NULL.
* For stream protocols, must never return 0 but rather
* a proper AVERROR code.
* @param write_packet A function for writing the buffer contents, may be NULL.
* The function may not change the input buffers content.
* @param seek A function for seeking to specified byte position, may be NULL.
*
* @return Allocated AVIOContext or NULL on failure.
*/
AVIOContext *avio_alloc_context(
unsigned char *buffer,
int buffer_size,
int write_flag,
void *opaque,
int (*read_packet)(void *opaque, uint8_t *buf, int buf_size),
#if FF_API_AVIO_WRITE_NONCONST
int (*write_packet)(void *opaque, uint8_t *buf, int buf_size),
#else
int (*write_packet)(void *opaque, const uint8_t *buf, int buf_size),
#endif
int64_t (*seek)(void *opaque, int64_t offset, int whence));
/**
* Free the supplied IO context and everything associated with it.
*
* @param s Double pointer to the IO context. This function will write NULL
* into s.
*/
void avio_context_free(AVIOContext **s);
void avio_w8(AVIOContext *s, int b);
void avio_write(AVIOContext *s, const unsigned char *buf, int size);
void avio_wl64(AVIOContext *s, uint64_t val);
void avio_wb64(AVIOContext *s, uint64_t val);
void avio_wl32(AVIOContext *s, unsigned int val);
void avio_wb32(AVIOContext *s, unsigned int val);
void avio_wl24(AVIOContext *s, unsigned int val);
void avio_wb24(AVIOContext *s, unsigned int val);
void avio_wl16(AVIOContext *s, unsigned int val);
void avio_wb16(AVIOContext *s, unsigned int val);
/**
* Write a NULL-terminated string.
* @return number of bytes written.
*/
int avio_put_str(AVIOContext *s, const char *str);
/**
* Convert an UTF-8 string to UTF-16LE and write it.
* @param s the AVIOContext
* @param str NULL-terminated UTF-8 string
*
* @return number of bytes written.
*/
int avio_put_str16le(AVIOContext *s, const char *str);
/**
* Convert an UTF-8 string to UTF-16BE and write it.
* @param s the AVIOContext
* @param str NULL-terminated UTF-8 string
*
* @return number of bytes written.
*/
int avio_put_str16be(AVIOContext *s, const char *str);
/**
* Mark the written bytestream as a specific type.
*
* Zero-length ranges are omitted from the output.
*
* @param s the AVIOContext
* @param time the stream time the current bytestream pos corresponds to
* (in AV_TIME_BASE units), or AV_NOPTS_VALUE if unknown or not
* applicable
* @param type the kind of data written starting at the current pos
*/
void avio_write_marker(AVIOContext *s, int64_t time, enum AVIODataMarkerType type);
/**
* ORing this as the "whence" parameter to a seek function causes it to
* return the filesize without seeking anywhere. Supporting this is optional.
* If it is not supported then the seek function will return <0.
*/
#define AVSEEK_SIZE 0x10000
/**
* Passing this flag as the "whence" parameter to a seek function causes it to
* seek by any means (like reopening and linear reading) or other normally unreasonable
* means that can be extremely slow.
* This may be ignored by the seek code.
*/
#define AVSEEK_FORCE 0x20000
/**
* fseek() equivalent for AVIOContext.
* @return new position or AVERROR.
*/
int64_t avio_seek(AVIOContext *s, int64_t offset, int whence);
/**
* Skip given number of bytes forward
* @return new position or AVERROR.
*/
int64_t avio_skip(AVIOContext *s, int64_t offset);
/**
* ftell() equivalent for AVIOContext.
* @return position or AVERROR.
*/
static av_always_inline int64_t avio_tell(AVIOContext *s)
{
return avio_seek(s, 0, SEEK_CUR);
}
/**
* Get the filesize.
* @return filesize or AVERROR
*/
int64_t avio_size(AVIOContext *s);
/**
* Similar to feof() but also returns nonzero on read errors.
* @return non zero if and only if at end of file or a read error happened when reading.
*/
int avio_feof(AVIOContext *s);
/**
* Writes a formatted string to the context taking a va_list.
* @return number of bytes written, < 0 on error.
*/
int avio_vprintf(AVIOContext *s, const char *fmt, va_list ap);
/**
* Writes a formatted string to the context.
* @return number of bytes written, < 0 on error.
*/
int avio_printf(AVIOContext *s, const char *fmt, ...) av_printf_format(2, 3);
/**
* Write a NULL terminated array of strings to the context.
* Usually you don't need to use this function directly but its macro wrapper,
* avio_print.
*/
void avio_print_string_array(AVIOContext *s, const char *strings[]);
/**
* Write strings (const char *) to the context.
* This is a convenience macro around avio_print_string_array and it
* automatically creates the string array from the variable argument list.
* For simple string concatenations this function is more performant than using
* avio_printf since it does not need a temporary buffer.
*/
#define avio_print(s, ...) \
avio_print_string_array(s, (const char*[]){__VA_ARGS__, NULL})
/**
* Force flushing of buffered data.
*
* For write streams, force the buffered data to be immediately written to the output,
* without to wait to fill the internal buffer.
*
* For read streams, discard all currently buffered data, and advance the
* reported file position to that of the underlying stream. This does not
* read new data, and does not perform any seeks.
*/
void avio_flush(AVIOContext *s);
/**
* Read size bytes from AVIOContext into buf.
* @return number of bytes read or AVERROR
*/
int avio_read(AVIOContext *s, unsigned char *buf, int size);
/**
* Read size bytes from AVIOContext into buf. Unlike avio_read(), this is allowed
* to read fewer bytes than requested. The missing bytes can be read in the next
* call. This always tries to read at least 1 byte.
* Useful to reduce latency in certain cases.
* @return number of bytes read or AVERROR
*/
int avio_read_partial(AVIOContext *s, unsigned char *buf, int size);
/**
* @name Functions for reading from AVIOContext
* @{
*
* @note return 0 if EOF, so you cannot use it if EOF handling is
* necessary
*/
int avio_r8 (AVIOContext *s);
unsigned int avio_rl16(AVIOContext *s);
unsigned int avio_rl24(AVIOContext *s);
unsigned int avio_rl32(AVIOContext *s);
uint64_t avio_rl64(AVIOContext *s);
unsigned int avio_rb16(AVIOContext *s);
unsigned int avio_rb24(AVIOContext *s);
unsigned int avio_rb32(AVIOContext *s);
uint64_t avio_rb64(AVIOContext *s);
/**
* @}
*/
/**
* Read a string from pb into buf. The reading will terminate when either
* a NULL character was encountered, maxlen bytes have been read, or nothing
* more can be read from pb. The result is guaranteed to be NULL-terminated, it
* will be truncated if buf is too small.
* Note that the string is not interpreted or validated in any way, it
* might get truncated in the middle of a sequence for multi-byte encodings.
*
* @return number of bytes read (is always <= maxlen).
* If reading ends on EOF or error, the return value will be one more than
* bytes actually read.
*/
int avio_get_str(AVIOContext *pb, int maxlen, char *buf, int buflen);
/**
* Read a UTF-16 string from pb and convert it to UTF-8.
* The reading will terminate when either a null or invalid character was
* encountered or maxlen bytes have been read.
* @return number of bytes read (is always <= maxlen)
*/
int avio_get_str16le(AVIOContext *pb, int maxlen, char *buf, int buflen);
int avio_get_str16be(AVIOContext *pb, int maxlen, char *buf, int buflen);
/**
* @name URL open modes
* The flags argument to avio_open must be one of the following
* constants, optionally ORed with other flags.
* @{
*/
#define AVIO_FLAG_READ 1 /**< read-only */
#define AVIO_FLAG_WRITE 2 /**< write-only */
#define AVIO_FLAG_READ_WRITE (AVIO_FLAG_READ|AVIO_FLAG_WRITE) /**< read-write pseudo flag */
/**
* @}
*/
/**
* Use non-blocking mode.
* If this flag is set, operations on the context will return
* AVERROR(EAGAIN) if they can not be performed immediately.
* If this flag is not set, operations on the context will never return
* AVERROR(EAGAIN).
* Note that this flag does not affect the opening/connecting of the
* context. Connecting a protocol will always block if necessary (e.g. on
* network protocols) but never hang (e.g. on busy devices).
* Warning: non-blocking protocols is work-in-progress; this flag may be
* silently ignored.
*/
#define AVIO_FLAG_NONBLOCK 8
/**
* Use direct mode.
* avio_read and avio_write should if possible be satisfied directly
* instead of going through a buffer, and avio_seek will always
* call the underlying seek function directly.
*/
#define AVIO_FLAG_DIRECT 0x8000
/**
* Create and initialize a AVIOContext for accessing the
* resource indicated by url.
* @note When the resource indicated by url has been opened in
* read+write mode, the AVIOContext can be used only for writing.
*
* @param s Used to return the pointer to the created AVIOContext.
* In case of failure the pointed to value is set to NULL.
* @param url resource to access
* @param flags flags which control how the resource indicated by url
* is to be opened
* @return >= 0 in case of success, a negative value corresponding to an
* AVERROR code in case of failure
*/
int avio_open(AVIOContext **s, const char *url, int flags);
/**
* Create and initialize a AVIOContext for accessing the
* resource indicated by url.
* @note When the resource indicated by url has been opened in
* read+write mode, the AVIOContext can be used only for writing.
*
* @param s Used to return the pointer to the created AVIOContext.
* In case of failure the pointed to value is set to NULL.
* @param url resource to access
* @param flags flags which control how the resource indicated by url
* is to be opened
* @param int_cb an interrupt callback to be used at the protocols level
* @param options A dictionary filled with protocol-private options. On return
* this parameter will be destroyed and replaced with a dict containing options
* that were not found. May be NULL.
* @return >= 0 in case of success, a negative value corresponding to an
* AVERROR code in case of failure
*/
int avio_open2(AVIOContext **s, const char *url, int flags,
const AVIOInterruptCB *int_cb, AVDictionary **options);
/**
* Close the resource accessed by the AVIOContext s and free it.
* This function can only be used if s was opened by avio_open().
*
* The internal buffer is automatically flushed before closing the
* resource.
*
* @return 0 on success, an AVERROR < 0 on error.
* @see avio_closep
*/
int avio_close(AVIOContext *s);
/**
* Close the resource accessed by the AVIOContext *s, free it
* and set the pointer pointing to it to NULL.
* This function can only be used if s was opened by avio_open().
*
* The internal buffer is automatically flushed before closing the
* resource.
*
* @return 0 on success, an AVERROR < 0 on error.
* @see avio_close
*/
int avio_closep(AVIOContext **s);
/**
* Open a write only memory stream.
*
* @param s new IO context
* @return zero if no error.
*/
int avio_open_dyn_buf(AVIOContext **s);
/**
* Return the written size and a pointer to the buffer.
* The AVIOContext stream is left intact.
* The buffer must NOT be freed.
* No padding is added to the buffer.
*
* @param s IO context
* @param pbuffer pointer to a byte buffer
* @return the length of the byte buffer
*/
int avio_get_dyn_buf(AVIOContext *s, uint8_t **pbuffer);
/**
* Return the written size and a pointer to the buffer. The buffer
* must be freed with av_free().
* Padding of AV_INPUT_BUFFER_PADDING_SIZE is added to the buffer.
*
* @param s IO context
* @param pbuffer pointer to a byte buffer
* @return the length of the byte buffer
*/
int avio_close_dyn_buf(AVIOContext *s, uint8_t **pbuffer);
/**
* Iterate through names of available protocols.
*
* @param opaque A private pointer representing current protocol.
* It must be a pointer to NULL on first iteration and will
* be updated by successive calls to avio_enum_protocols.
* @param output If set to 1, iterate over output protocols,
* otherwise over input protocols.
*
* @return A static string containing the name of current protocol or NULL
*/
const char *avio_enum_protocols(void **opaque, int output);
/**
* Get AVClass by names of available protocols.
*
* @return A AVClass of input protocol name or NULL
*/
const AVClass *avio_protocol_get_class(const char *name);
/**
* Pause and resume playing - only meaningful if using a network streaming
* protocol (e.g. MMS).
*
* @param h IO context from which to call the read_pause function pointer
* @param pause 1 for pause, 0 for resume
*/
int avio_pause(AVIOContext *h, int pause);
/**
* Seek to a given timestamp relative to some component stream.
* Only meaningful if using a network streaming protocol (e.g. MMS.).
*
* @param h IO context from which to call the seek function pointers
* @param stream_index The stream index that the timestamp is relative to.
* If stream_index is (-1) the timestamp should be in AV_TIME_BASE
* units from the beginning of the presentation.
* If a stream_index >= 0 is used and the protocol does not support
* seeking based on component streams, the call will fail.
* @param timestamp timestamp in AVStream.time_base units
* or if there is no stream specified then in AV_TIME_BASE units.
* @param flags Optional combination of AVSEEK_FLAG_BACKWARD, AVSEEK_FLAG_BYTE
* and AVSEEK_FLAG_ANY. The protocol may silently ignore
* AVSEEK_FLAG_BACKWARD and AVSEEK_FLAG_ANY, but AVSEEK_FLAG_BYTE will
* fail if used and not supported.
* @return >= 0 on success
* @see AVInputFormat::read_seek
*/
int64_t avio_seek_time(AVIOContext *h, int stream_index,
int64_t timestamp, int flags);
/* Avoid a warning. The header can not be included because it breaks c++. */
struct AVBPrint;
/**
* Read contents of h into print buffer, up to max_size bytes, or up to EOF.
*
* @return 0 for success (max_size bytes read or EOF reached), negative error
* code otherwise
*/
int avio_read_to_bprint(AVIOContext *h, struct AVBPrint *pb, size_t max_size);
/**
* Accept and allocate a client context on a server context.
* @param s the server context
* @param c the client context, must be unallocated
* @return >= 0 on success or a negative value corresponding
* to an AVERROR on failure
*/
int avio_accept(AVIOContext *s, AVIOContext **c);
/**
* Perform one step of the protocol handshake to accept a new client.
* This function must be called on a client returned by avio_accept() before
* using it as a read/write context.
* It is separate from avio_accept() because it may block.
* A step of the handshake is defined by places where the application may
* decide to change the proceedings.
* For example, on a protocol with a request header and a reply header, each
* one can constitute a step because the application may use the parameters
* from the request to change parameters in the reply; or each individual
* chunk of the request can constitute a step.
* If the handshake is already finished, avio_handshake() does nothing and
* returns 0 immediately.
*
* @param c the client context to perform the handshake on
* @return 0 on a complete and successful handshake
* > 0 if the handshake progressed, but is not complete
* < 0 for an AVERROR code
*/
int avio_handshake(AVIOContext *c);
#endif /* AVFORMAT_AVIO_H */

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/*
* Version macros.
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVFORMAT_VERSION_H
#define AVFORMAT_VERSION_H
/**
* @file
* @ingroup libavf
* Libavformat version macros
*/
#include "libavutil/version.h"
#include "version_major.h"
#define LIBAVFORMAT_VERSION_MINOR 16
#define LIBAVFORMAT_VERSION_MICRO 101
#define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \
LIBAVFORMAT_VERSION_MINOR, \
LIBAVFORMAT_VERSION_MICRO)
#define LIBAVFORMAT_VERSION AV_VERSION(LIBAVFORMAT_VERSION_MAJOR, \
LIBAVFORMAT_VERSION_MINOR, \
LIBAVFORMAT_VERSION_MICRO)
#define LIBAVFORMAT_BUILD LIBAVFORMAT_VERSION_INT
#define LIBAVFORMAT_IDENT "Lavf" AV_STRINGIFY(LIBAVFORMAT_VERSION)
#endif /* AVFORMAT_VERSION_H */

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/*
* Version macros.
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVFORMAT_VERSION_MAJOR_H
#define AVFORMAT_VERSION_MAJOR_H
/**
* @file
* @ingroup libavf
* Libavformat version macros
*/
// Major bumping may affect Ticket5467, 5421, 5451(compatibility with Chromium)
// Also please add any ticket numbers that you believe might be affected here
#define LIBAVFORMAT_VERSION_MAJOR 60
/**
* FF_API_* defines may be placed below to indicate public API that will be
* dropped at a future version bump. The defines themselves are not part of
* the public API and may change, break or disappear at any time.
*
* @note, when bumping the major version it is recommended to manually
* disable each FF_API_* in its own commit instead of disabling them all
* at once through the bump. This improves the git bisect-ability of the change.
*
*/
#define FF_API_COMPUTE_PKT_FIELDS2 (LIBAVFORMAT_VERSION_MAJOR < 61)
#define FF_API_GET_END_PTS (LIBAVFORMAT_VERSION_MAJOR < 61)
#define FF_API_AVIODIRCONTEXT (LIBAVFORMAT_VERSION_MAJOR < 61)
#define FF_API_AVFORMAT_IO_CLOSE (LIBAVFORMAT_VERSION_MAJOR < 61)
#define FF_API_AVIO_WRITE_NONCONST (LIBAVFORMAT_VERSION_MAJOR < 61)
#define FF_API_LAVF_SHORTEST (LIBAVFORMAT_VERSION_MAJOR < 61)
#define FF_API_ALLOW_FLUSH (LIBAVFORMAT_VERSION_MAJOR < 61)
#define FF_API_AVSTREAM_SIDE_DATA (LIBAVFORMAT_VERSION_MAJOR < 61)
#define FF_API_R_FRAME_RATE 1
#endif /* AVFORMAT_VERSION_MAJOR_H */

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/*
* copyright (c) 2006 Mans Rullgard
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file
* @ingroup lavu_adler32
* Public header for Adler-32 hash function implementation.
*/
#ifndef AVUTIL_ADLER32_H
#define AVUTIL_ADLER32_H
#include <stddef.h>
#include <stdint.h>
#include "attributes.h"
/**
* @defgroup lavu_adler32 Adler-32
* @ingroup lavu_hash
* Adler-32 hash function implementation.
*
* @{
*/
typedef uint32_t AVAdler;
/**
* Calculate the Adler32 checksum of a buffer.
*
* Passing the return value to a subsequent av_adler32_update() call
* allows the checksum of multiple buffers to be calculated as though
* they were concatenated.
*
* @param adler initial checksum value
* @param buf pointer to input buffer
* @param len size of input buffer
* @return updated checksum
*/
AVAdler av_adler32_update(AVAdler adler, const uint8_t *buf,
size_t len) av_pure;
/**
* @}
*/
#endif /* AVUTIL_ADLER32_H */

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/*
* copyright (c) 2007 Michael Niedermayer <michaelni@gmx.at>
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVUTIL_AES_H
#define AVUTIL_AES_H
#include <stdint.h>
#include "attributes.h"
/**
* @defgroup lavu_aes AES
* @ingroup lavu_crypto
* @{
*/
extern const int av_aes_size;
struct AVAES;
/**
* Allocate an AVAES context.
*/
struct AVAES *av_aes_alloc(void);
/**
* Initialize an AVAES context.
*
* @param a The AVAES context
* @param key Pointer to the key
* @param key_bits 128, 192 or 256
* @param decrypt 0 for encryption, 1 for decryption
*/
int av_aes_init(struct AVAES *a, const uint8_t *key, int key_bits, int decrypt);
/**
* Encrypt or decrypt a buffer using a previously initialized context.
*
* @param a The AVAES context
* @param dst destination array, can be equal to src
* @param src source array, can be equal to dst
* @param count number of 16 byte blocks
* @param iv initialization vector for CBC mode, if NULL then ECB will be used
* @param decrypt 0 for encryption, 1 for decryption
*/
void av_aes_crypt(struct AVAES *a, uint8_t *dst, const uint8_t *src, int count, uint8_t *iv, int decrypt);
/**
* @}
*/
#endif /* AVUTIL_AES_H */

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/*
* AES-CTR cipher
* Copyright (c) 2015 Eran Kornblau <erankor at gmail dot com>
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVUTIL_AES_CTR_H
#define AVUTIL_AES_CTR_H
/**
* @defgroup lavu_aes_ctr AES-CTR
* @ingroup lavu_crypto
* @{
*/
#include <stdint.h>
#include "attributes.h"
#define AES_CTR_KEY_SIZE (16)
#define AES_CTR_IV_SIZE (8)
struct AVAESCTR;
/**
* Allocate an AVAESCTR context.
*/
struct AVAESCTR *av_aes_ctr_alloc(void);
/**
* Initialize an AVAESCTR context.
*
* @param a The AVAESCTR context to initialize
* @param key encryption key, must have a length of AES_CTR_KEY_SIZE
*/
int av_aes_ctr_init(struct AVAESCTR *a, const uint8_t *key);
/**
* Release an AVAESCTR context.
*
* @param a The AVAESCTR context
*/
void av_aes_ctr_free(struct AVAESCTR *a);
/**
* Process a buffer using a previously initialized context.
*
* @param a The AVAESCTR context
* @param dst destination array, can be equal to src
* @param src source array, can be equal to dst
* @param size the size of src and dst
*/
void av_aes_ctr_crypt(struct AVAESCTR *a, uint8_t *dst, const uint8_t *src, int size);
/**
* Get the current iv
*/
const uint8_t* av_aes_ctr_get_iv(struct AVAESCTR *a);
/**
* Generate a random iv
*/
void av_aes_ctr_set_random_iv(struct AVAESCTR *a);
/**
* Forcefully change the 8-byte iv
*/
void av_aes_ctr_set_iv(struct AVAESCTR *a, const uint8_t* iv);
/**
* Forcefully change the "full" 16-byte iv, including the counter
*/
void av_aes_ctr_set_full_iv(struct AVAESCTR *a, const uint8_t* iv);
/**
* Increment the top 64 bit of the iv (performed after each frame)
*/
void av_aes_ctr_increment_iv(struct AVAESCTR *a);
/**
* @}
*/
#endif /* AVUTIL_AES_CTR_H */

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/*
* Copyright (c) 2023 Jan Ekström <jeebjp@gmail.com>
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVUTIL_AMBIENT_VIEWING_ENVIRONMENT_H
#define AVUTIL_AMBIENT_VIEWING_ENVIRONMENT_H
#include <stddef.h>
#include "frame.h"
#include "rational.h"
/**
* Ambient viewing environment metadata as defined by H.274. The values are
* saved in AVRationals so that they keep their exactness, while allowing for
* easy access to a double value with f.ex. av_q2d.
*
* @note sizeof(AVAmbientViewingEnvironment) is not part of the public ABI, and
* it must be allocated using av_ambient_viewing_environment_alloc.
*/
typedef struct AVAmbientViewingEnvironment {
/**
* Environmental illuminance of the ambient viewing environment in lux.
*/
AVRational ambient_illuminance;
/**
* Normalized x chromaticity coordinate of the environmental ambient light
* in the nominal viewing environment according to the CIE 1931 definition
* of x and y as specified in ISO/CIE 11664-1.
*/
AVRational ambient_light_x;
/**
* Normalized y chromaticity coordinate of the environmental ambient light
* in the nominal viewing environment according to the CIE 1931 definition
* of x and y as specified in ISO/CIE 11664-1.
*/
AVRational ambient_light_y;
} AVAmbientViewingEnvironment;
/**
* Allocate an AVAmbientViewingEnvironment structure.
*
* @return the newly allocated struct or NULL on failure
*/
AVAmbientViewingEnvironment *av_ambient_viewing_environment_alloc(size_t *size);
/**
* Allocate and add an AVAmbientViewingEnvironment structure to an existing
* AVFrame as side data.
*
* @return the newly allocated struct, or NULL on failure
*/
AVAmbientViewingEnvironment *av_ambient_viewing_environment_create_side_data(AVFrame *frame);
#endif /* AVUTIL_AMBIENT_VIEWING_ENVIRONMENT_H */

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/*
* copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file
* Macro definitions for various function/variable attributes
*/
#ifndef AVUTIL_ATTRIBUTES_H
#define AVUTIL_ATTRIBUTES_H
#ifdef __GNUC__
# define AV_GCC_VERSION_AT_LEAST(x,y) (__GNUC__ > (x) || __GNUC__ == (x) && __GNUC_MINOR__ >= (y))
# define AV_GCC_VERSION_AT_MOST(x,y) (__GNUC__ < (x) || __GNUC__ == (x) && __GNUC_MINOR__ <= (y))
#else
# define AV_GCC_VERSION_AT_LEAST(x,y) 0
# define AV_GCC_VERSION_AT_MOST(x,y) 0
#endif
#ifdef __has_builtin
# define AV_HAS_BUILTIN(x) __has_builtin(x)
#else
# define AV_HAS_BUILTIN(x) 0
#endif
#ifndef av_always_inline
#if AV_GCC_VERSION_AT_LEAST(3,1)
# define av_always_inline __attribute__((always_inline)) inline
#elif defined(_MSC_VER)
# define av_always_inline __forceinline
#else
# define av_always_inline inline
#endif
#endif
#ifndef av_extern_inline
#if defined(__ICL) && __ICL >= 1210 || defined(__GNUC_STDC_INLINE__)
# define av_extern_inline extern inline
#else
# define av_extern_inline inline
#endif
#endif
#if AV_GCC_VERSION_AT_LEAST(3,4)
# define av_warn_unused_result __attribute__((warn_unused_result))
#else
# define av_warn_unused_result
#endif
#if AV_GCC_VERSION_AT_LEAST(3,1)
# define av_noinline __attribute__((noinline))
#elif defined(_MSC_VER)
# define av_noinline __declspec(noinline)
#else
# define av_noinline
#endif
#if AV_GCC_VERSION_AT_LEAST(3,1) || defined(__clang__)
# define av_pure __attribute__((pure))
#else
# define av_pure
#endif
#if AV_GCC_VERSION_AT_LEAST(2,6) || defined(__clang__)
# define av_const __attribute__((const))
#else
# define av_const
#endif
#if AV_GCC_VERSION_AT_LEAST(4,3) || defined(__clang__)
# define av_cold __attribute__((cold))
#else
# define av_cold
#endif
#if AV_GCC_VERSION_AT_LEAST(4,1) && !defined(__llvm__)
# define av_flatten __attribute__((flatten))
#else
# define av_flatten
#endif
#if AV_GCC_VERSION_AT_LEAST(3,1)
# define attribute_deprecated __attribute__((deprecated))
#elif defined(_MSC_VER)
# define attribute_deprecated __declspec(deprecated)
#else
# define attribute_deprecated
#endif
/**
* Disable warnings about deprecated features
* This is useful for sections of code kept for backward compatibility and
* scheduled for removal.
*/
#ifndef AV_NOWARN_DEPRECATED
#if AV_GCC_VERSION_AT_LEAST(4,6) || defined(__clang__)
# define AV_NOWARN_DEPRECATED(code) \
_Pragma("GCC diagnostic push") \
_Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") \
code \
_Pragma("GCC diagnostic pop")
#elif defined(_MSC_VER)
# define AV_NOWARN_DEPRECATED(code) \
__pragma(warning(push)) \
__pragma(warning(disable : 4996)) \
code; \
__pragma(warning(pop))
#else
# define AV_NOWARN_DEPRECATED(code) code
#endif
#endif
#if defined(__GNUC__) || defined(__clang__)
# define av_unused __attribute__((unused))
#else
# define av_unused
#endif
/**
* Mark a variable as used and prevent the compiler from optimizing it
* away. This is useful for variables accessed only from inline
* assembler without the compiler being aware.
*/
#if AV_GCC_VERSION_AT_LEAST(3,1) || defined(__clang__)
# define av_used __attribute__((used))
#else
# define av_used
#endif
#if AV_GCC_VERSION_AT_LEAST(3,3) || defined(__clang__)
# define av_alias __attribute__((may_alias))
#else
# define av_alias
#endif
#if (defined(__GNUC__) || defined(__clang__)) && !defined(__INTEL_COMPILER)
# define av_uninit(x) x=x
#else
# define av_uninit(x) x
#endif
#if defined(__GNUC__) || defined(__clang__)
# define av_builtin_constant_p __builtin_constant_p
# define av_printf_format(fmtpos, attrpos) __attribute__((__format__(__printf__, fmtpos, attrpos)))
#else
# define av_builtin_constant_p(x) 0
# define av_printf_format(fmtpos, attrpos)
#endif
#if AV_GCC_VERSION_AT_LEAST(2,5) || defined(__clang__)
# define av_noreturn __attribute__((noreturn))
#else
# define av_noreturn
#endif
#endif /* AVUTIL_ATTRIBUTES_H */

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/*
* Audio FIFO
* Copyright (c) 2012 Justin Ruggles <justin.ruggles@gmail.com>
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file
* Audio FIFO Buffer
*/
#ifndef AVUTIL_AUDIO_FIFO_H
#define AVUTIL_AUDIO_FIFO_H
#include "attributes.h"
#include "samplefmt.h"
/**
* @addtogroup lavu_audio
* @{
*
* @defgroup lavu_audiofifo Audio FIFO Buffer
* @{
*/
/**
* Context for an Audio FIFO Buffer.
*
* - Operates at the sample level rather than the byte level.
* - Supports multiple channels with either planar or packed sample format.
* - Automatic reallocation when writing to a full buffer.
*/
typedef struct AVAudioFifo AVAudioFifo;
/**
* Free an AVAudioFifo.
*
* @param af AVAudioFifo to free
*/
void av_audio_fifo_free(AVAudioFifo *af);
/**
* Allocate an AVAudioFifo.
*
* @param sample_fmt sample format
* @param channels number of channels
* @param nb_samples initial allocation size, in samples
* @return newly allocated AVAudioFifo, or NULL on error
*/
AVAudioFifo *av_audio_fifo_alloc(enum AVSampleFormat sample_fmt, int channels,
int nb_samples);
/**
* Reallocate an AVAudioFifo.
*
* @param af AVAudioFifo to reallocate
* @param nb_samples new allocation size, in samples
* @return 0 if OK, or negative AVERROR code on failure
*/
av_warn_unused_result
int av_audio_fifo_realloc(AVAudioFifo *af, int nb_samples);
/**
* Write data to an AVAudioFifo.
*
* The AVAudioFifo will be reallocated automatically if the available space
* is less than nb_samples.
*
* @see enum AVSampleFormat
* The documentation for AVSampleFormat describes the data layout.
*
* @param af AVAudioFifo to write to
* @param data audio data plane pointers
* @param nb_samples number of samples to write
* @return number of samples actually written, or negative AVERROR
* code on failure. If successful, the number of samples
* actually written will always be nb_samples.
*/
int av_audio_fifo_write(AVAudioFifo *af, void * const *data, int nb_samples);
/**
* Peek data from an AVAudioFifo.
*
* @see enum AVSampleFormat
* The documentation for AVSampleFormat describes the data layout.
*
* @param af AVAudioFifo to read from
* @param data audio data plane pointers
* @param nb_samples number of samples to peek
* @return number of samples actually peek, or negative AVERROR code
* on failure. The number of samples actually peek will not
* be greater than nb_samples, and will only be less than
* nb_samples if av_audio_fifo_size is less than nb_samples.
*/
int av_audio_fifo_peek(const AVAudioFifo *af, void * const *data, int nb_samples);
/**
* Peek data from an AVAudioFifo.
*
* @see enum AVSampleFormat
* The documentation for AVSampleFormat describes the data layout.
*
* @param af AVAudioFifo to read from
* @param data audio data plane pointers
* @param nb_samples number of samples to peek
* @param offset offset from current read position
* @return number of samples actually peek, or negative AVERROR code
* on failure. The number of samples actually peek will not
* be greater than nb_samples, and will only be less than
* nb_samples if av_audio_fifo_size is less than nb_samples.
*/
int av_audio_fifo_peek_at(const AVAudioFifo *af, void * const *data,
int nb_samples, int offset);
/**
* Read data from an AVAudioFifo.
*
* @see enum AVSampleFormat
* The documentation for AVSampleFormat describes the data layout.
*
* @param af AVAudioFifo to read from
* @param data audio data plane pointers
* @param nb_samples number of samples to read
* @return number of samples actually read, or negative AVERROR code
* on failure. The number of samples actually read will not
* be greater than nb_samples, and will only be less than
* nb_samples if av_audio_fifo_size is less than nb_samples.
*/
int av_audio_fifo_read(AVAudioFifo *af, void * const *data, int nb_samples);
/**
* Drain data from an AVAudioFifo.
*
* Removes the data without reading it.
*
* @param af AVAudioFifo to drain
* @param nb_samples number of samples to drain
* @return 0 if OK, or negative AVERROR code on failure
*/
int av_audio_fifo_drain(AVAudioFifo *af, int nb_samples);
/**
* Reset the AVAudioFifo buffer.
*
* This empties all data in the buffer.
*
* @param af AVAudioFifo to reset
*/
void av_audio_fifo_reset(AVAudioFifo *af);
/**
* Get the current number of samples in the AVAudioFifo available for reading.
*
* @param af the AVAudioFifo to query
* @return number of samples available for reading
*/
int av_audio_fifo_size(AVAudioFifo *af);
/**
* Get the current number of samples in the AVAudioFifo available for writing.
*
* @param af the AVAudioFifo to query
* @return number of samples available for writing
*/
int av_audio_fifo_space(AVAudioFifo *af);
/**
* @}
* @}
*/
#endif /* AVUTIL_AUDIO_FIFO_H */

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/*
* copyright (c) 2010 Michael Niedermayer <michaelni@gmx.at>
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file
* simple assert() macros that are a bit more flexible than ISO C assert().
* @author Michael Niedermayer <michaelni@gmx.at>
*/
#ifndef AVUTIL_AVASSERT_H
#define AVUTIL_AVASSERT_H
#include <stdlib.h>
#ifdef HAVE_AV_CONFIG_H
# include "config.h"
#endif
#include "log.h"
#include "macros.h"
/**
* assert() equivalent, that is always enabled.
*/
#define av_assert0(cond) do { \
if (!(cond)) { \
av_log(NULL, AV_LOG_PANIC, "Assertion %s failed at %s:%d\n", \
AV_STRINGIFY(cond), __FILE__, __LINE__); \
abort(); \
} \
} while (0)
/**
* assert() equivalent, that does not lie in speed critical code.
* These asserts() thus can be enabled without fearing speed loss.
*/
#if defined(ASSERT_LEVEL) && ASSERT_LEVEL > 0
#define av_assert1(cond) av_assert0(cond)
#else
#define av_assert1(cond) ((void)0)
#endif
/**
* assert() equivalent, that does lie in speed critical code.
*/
#if defined(ASSERT_LEVEL) && ASSERT_LEVEL > 1
#define av_assert2(cond) av_assert0(cond)
#define av_assert2_fpu() av_assert0_fpu()
#else
#define av_assert2(cond) ((void)0)
#define av_assert2_fpu() ((void)0)
#endif
/**
* Assert that floating point operations can be executed.
*
* This will av_assert0() that the cpu is not in MMX state on X86
*/
void av_assert0_fpu(void);
#endif /* AVUTIL_AVASSERT_H */

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/* Generated by ffmpeg configure */
#ifndef AVUTIL_AVCONFIG_H
#define AVUTIL_AVCONFIG_H
#define AV_HAVE_BIGENDIAN 0
#define AV_HAVE_FAST_UNALIGNED 1
#endif /* AVUTIL_AVCONFIG_H */

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/*
* Copyright (c) 2007 Mans Rullgard
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVUTIL_AVSTRING_H
#define AVUTIL_AVSTRING_H
#include <stddef.h>
#include <stdint.h>
#include "attributes.h"
/**
* @addtogroup lavu_string
* @{
*/
/**
* Return non-zero if pfx is a prefix of str. If it is, *ptr is set to
* the address of the first character in str after the prefix.
*
* @param str input string
* @param pfx prefix to test
* @param ptr updated if the prefix is matched inside str
* @return non-zero if the prefix matches, zero otherwise
*/
int av_strstart(const char *str, const char *pfx, const char **ptr);
/**
* Return non-zero if pfx is a prefix of str independent of case. If
* it is, *ptr is set to the address of the first character in str
* after the prefix.
*
* @param str input string
* @param pfx prefix to test
* @param ptr updated if the prefix is matched inside str
* @return non-zero if the prefix matches, zero otherwise
*/
int av_stristart(const char *str, const char *pfx, const char **ptr);
/**
* Locate the first case-independent occurrence in the string haystack
* of the string needle. A zero-length string needle is considered to
* match at the start of haystack.
*
* This function is a case-insensitive version of the standard strstr().
*
* @param haystack string to search in
* @param needle string to search for
* @return pointer to the located match within haystack
* or a null pointer if no match
*/
char *av_stristr(const char *haystack, const char *needle);
/**
* Locate the first occurrence of the string needle in the string haystack
* where not more than hay_length characters are searched. A zero-length
* string needle is considered to match at the start of haystack.
*
* This function is a length-limited version of the standard strstr().
*
* @param haystack string to search in
* @param needle string to search for
* @param hay_length length of string to search in
* @return pointer to the located match within haystack
* or a null pointer if no match
*/
char *av_strnstr(const char *haystack, const char *needle, size_t hay_length);
/**
* Copy the string src to dst, but no more than size - 1 bytes, and
* null-terminate dst.
*
* This function is the same as BSD strlcpy().
*
* @param dst destination buffer
* @param src source string
* @param size size of destination buffer
* @return the length of src
*
* @warning since the return value is the length of src, src absolutely
* _must_ be a properly 0-terminated string, otherwise this will read beyond
* the end of the buffer and possibly crash.
*/
size_t av_strlcpy(char *dst, const char *src, size_t size);
/**
* Append the string src to the string dst, but to a total length of
* no more than size - 1 bytes, and null-terminate dst.
*
* This function is similar to BSD strlcat(), but differs when
* size <= strlen(dst).
*
* @param dst destination buffer
* @param src source string
* @param size size of destination buffer
* @return the total length of src and dst
*
* @warning since the return value use the length of src and dst, these
* absolutely _must_ be a properly 0-terminated strings, otherwise this
* will read beyond the end of the buffer and possibly crash.
*/
size_t av_strlcat(char *dst, const char *src, size_t size);
/**
* Append output to a string, according to a format. Never write out of
* the destination buffer, and always put a terminating 0 within
* the buffer.
* @param dst destination buffer (string to which the output is
* appended)
* @param size total size of the destination buffer
* @param fmt printf-compatible format string, specifying how the
* following parameters are used
* @return the length of the string that would have been generated
* if enough space had been available
*/
size_t av_strlcatf(char *dst, size_t size, const char *fmt, ...) av_printf_format(3, 4);
/**
* Get the count of continuous non zero chars starting from the beginning.
*
* @param s the string whose length to count
* @param len maximum number of characters to check in the string, that
* is the maximum value which is returned by the function
*/
static inline size_t av_strnlen(const char *s, size_t len)
{
size_t i;
for (i = 0; i < len && s[i]; i++)
;
return i;
}
/**
* Print arguments following specified format into a large enough auto
* allocated buffer. It is similar to GNU asprintf().
* @param fmt printf-compatible format string, specifying how the
* following parameters are used.
* @return the allocated string
* @note You have to free the string yourself with av_free().
*/
char *av_asprintf(const char *fmt, ...) av_printf_format(1, 2);
/**
* Unescape the given string until a non escaped terminating char,
* and return the token corresponding to the unescaped string.
*
* The normal \ and ' escaping is supported. Leading and trailing
* whitespaces are removed, unless they are escaped with '\' or are
* enclosed between ''.
*
* @param buf the buffer to parse, buf will be updated to point to the
* terminating char
* @param term a 0-terminated list of terminating chars
* @return the malloced unescaped string, which must be av_freed by
* the user, NULL in case of allocation failure
*/
char *av_get_token(const char **buf, const char *term);
/**
* Split the string into several tokens which can be accessed by
* successive calls to av_strtok().
*
* A token is defined as a sequence of characters not belonging to the
* set specified in delim.
*
* On the first call to av_strtok(), s should point to the string to
* parse, and the value of saveptr is ignored. In subsequent calls, s
* should be NULL, and saveptr should be unchanged since the previous
* call.
*
* This function is similar to strtok_r() defined in POSIX.1.
*
* @param s the string to parse, may be NULL
* @param delim 0-terminated list of token delimiters, must be non-NULL
* @param saveptr user-provided pointer which points to stored
* information necessary for av_strtok() to continue scanning the same
* string. saveptr is updated to point to the next character after the
* first delimiter found, or to NULL if the string was terminated
* @return the found token, or NULL when no token is found
*/
char *av_strtok(char *s, const char *delim, char **saveptr);
/**
* Locale-independent conversion of ASCII isdigit.
*/
static inline av_const int av_isdigit(int c)
{
return c >= '0' && c <= '9';
}
/**
* Locale-independent conversion of ASCII isgraph.
*/
static inline av_const int av_isgraph(int c)
{
return c > 32 && c < 127;
}
/**
* Locale-independent conversion of ASCII isspace.
*/
static inline av_const int av_isspace(int c)
{
return c == ' ' || c == '\f' || c == '\n' || c == '\r' || c == '\t' ||
c == '\v';
}
/**
* Locale-independent conversion of ASCII characters to uppercase.
*/
static inline av_const int av_toupper(int c)
{
if (c >= 'a' && c <= 'z')
c ^= 0x20;
return c;
}
/**
* Locale-independent conversion of ASCII characters to lowercase.
*/
static inline av_const int av_tolower(int c)
{
if (c >= 'A' && c <= 'Z')
c ^= 0x20;
return c;
}
/**
* Locale-independent conversion of ASCII isxdigit.
*/
static inline av_const int av_isxdigit(int c)
{
c = av_tolower(c);
return av_isdigit(c) || (c >= 'a' && c <= 'f');
}
/**
* Locale-independent case-insensitive compare.
* @note This means only ASCII-range characters are case-insensitive
*/
int av_strcasecmp(const char *a, const char *b);
/**
* Locale-independent case-insensitive compare.
* @note This means only ASCII-range characters are case-insensitive
*/
int av_strncasecmp(const char *a, const char *b, size_t n);
/**
* Locale-independent strings replace.
* @note This means only ASCII-range characters are replaced.
*/
char *av_strireplace(const char *str, const char *from, const char *to);
/**
* Thread safe basename.
* @param path the string to parse, on DOS both \ and / are considered separators.
* @return pointer to the basename substring.
* If path does not contain a slash, the function returns a copy of path.
* If path is a NULL pointer or points to an empty string, a pointer
* to a string "." is returned.
*/
const char *av_basename(const char *path);
/**
* Thread safe dirname.
* @param path the string to parse, on DOS both \ and / are considered separators.
* @return A pointer to a string that's the parent directory of path.
* If path is a NULL pointer or points to an empty string, a pointer
* to a string "." is returned.
* @note the function may modify the contents of the path, so copies should be passed.
*/
const char *av_dirname(char *path);
/**
* Match instances of a name in a comma-separated list of names.
* List entries are checked from the start to the end of the names list,
* the first match ends further processing. If an entry prefixed with '-'
* matches, then 0 is returned. The "ALL" list entry is considered to
* match all names.
*
* @param name Name to look for.
* @param names List of names.
* @return 1 on match, 0 otherwise.
*/
int av_match_name(const char *name, const char *names);
/**
* Append path component to the existing path.
* Path separator '/' is placed between when needed.
* Resulting string have to be freed with av_free().
* @param path base path
* @param component component to be appended
* @return new path or NULL on error.
*/
char *av_append_path_component(const char *path, const char *component);
enum AVEscapeMode {
AV_ESCAPE_MODE_AUTO, ///< Use auto-selected escaping mode.
AV_ESCAPE_MODE_BACKSLASH, ///< Use backslash escaping.
AV_ESCAPE_MODE_QUOTE, ///< Use single-quote escaping.
AV_ESCAPE_MODE_XML, ///< Use XML non-markup character data escaping.
};
/**
* Consider spaces special and escape them even in the middle of the
* string.
*
* This is equivalent to adding the whitespace characters to the special
* characters lists, except it is guaranteed to use the exact same list
* of whitespace characters as the rest of libavutil.
*/
#define AV_ESCAPE_FLAG_WHITESPACE (1 << 0)
/**
* Escape only specified special characters.
* Without this flag, escape also any characters that may be considered
* special by av_get_token(), such as the single quote.
*/
#define AV_ESCAPE_FLAG_STRICT (1 << 1)
/**
* Within AV_ESCAPE_MODE_XML, additionally escape single quotes for single
* quoted attributes.
*/
#define AV_ESCAPE_FLAG_XML_SINGLE_QUOTES (1 << 2)
/**
* Within AV_ESCAPE_MODE_XML, additionally escape double quotes for double
* quoted attributes.
*/
#define AV_ESCAPE_FLAG_XML_DOUBLE_QUOTES (1 << 3)
/**
* Escape string in src, and put the escaped string in an allocated
* string in *dst, which must be freed with av_free().
*
* @param dst pointer where an allocated string is put
* @param src string to escape, must be non-NULL
* @param special_chars string containing the special characters which
* need to be escaped, can be NULL
* @param mode escape mode to employ, see AV_ESCAPE_MODE_* macros.
* Any unknown value for mode will be considered equivalent to
* AV_ESCAPE_MODE_BACKSLASH, but this behaviour can change without
* notice.
* @param flags flags which control how to escape, see AV_ESCAPE_FLAG_ macros
* @return the length of the allocated string, or a negative error code in case of error
* @see av_bprint_escape()
*/
av_warn_unused_result
int av_escape(char **dst, const char *src, const char *special_chars,
enum AVEscapeMode mode, int flags);
#define AV_UTF8_FLAG_ACCEPT_INVALID_BIG_CODES 1 ///< accept codepoints over 0x10FFFF
#define AV_UTF8_FLAG_ACCEPT_NON_CHARACTERS 2 ///< accept non-characters - 0xFFFE and 0xFFFF
#define AV_UTF8_FLAG_ACCEPT_SURROGATES 4 ///< accept UTF-16 surrogates codes
#define AV_UTF8_FLAG_EXCLUDE_XML_INVALID_CONTROL_CODES 8 ///< exclude control codes not accepted by XML
#define AV_UTF8_FLAG_ACCEPT_ALL \
AV_UTF8_FLAG_ACCEPT_INVALID_BIG_CODES|AV_UTF8_FLAG_ACCEPT_NON_CHARACTERS|AV_UTF8_FLAG_ACCEPT_SURROGATES
/**
* Read and decode a single UTF-8 code point (character) from the
* buffer in *buf, and update *buf to point to the next byte to
* decode.
*
* In case of an invalid byte sequence, the pointer will be updated to
* the next byte after the invalid sequence and the function will
* return an error code.
*
* Depending on the specified flags, the function will also fail in
* case the decoded code point does not belong to a valid range.
*
* @note For speed-relevant code a carefully implemented use of
* GET_UTF8() may be preferred.
*
* @param codep pointer used to return the parsed code in case of success.
* The value in *codep is set even in case the range check fails.
* @param bufp pointer to the address the first byte of the sequence
* to decode, updated by the function to point to the
* byte next after the decoded sequence
* @param buf_end pointer to the end of the buffer, points to the next
* byte past the last in the buffer. This is used to
* avoid buffer overreads (in case of an unfinished
* UTF-8 sequence towards the end of the buffer).
* @param flags a collection of AV_UTF8_FLAG_* flags
* @return >= 0 in case a sequence was successfully read, a negative
* value in case of invalid sequence
*/
av_warn_unused_result
int av_utf8_decode(int32_t *codep, const uint8_t **bufp, const uint8_t *buf_end,
unsigned int flags);
/**
* Check if a name is in a list.
* @returns 0 if not found, or the 1 based index where it has been found in the
* list.
*/
int av_match_list(const char *name, const char *list, char separator);
/**
* See libc sscanf manual for more information.
* Locale-independent sscanf implementation.
*/
int av_sscanf(const char *string, const char *format, ...);
/**
* @}
*/
#endif /* AVUTIL_AVSTRING_H */

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/*
* copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVUTIL_AVUTIL_H
#define AVUTIL_AVUTIL_H
/**
* @file
* @ingroup lavu
* Convenience header that includes @ref lavu "libavutil"'s core.
*/
/**
* @mainpage
*
* @section ffmpeg_intro Introduction
*
* This document describes the usage of the different libraries
* provided by FFmpeg.
*
* @li @ref libavc "libavcodec" encoding/decoding library
* @li @ref lavfi "libavfilter" graph-based frame editing library
* @li @ref libavf "libavformat" I/O and muxing/demuxing library
* @li @ref lavd "libavdevice" special devices muxing/demuxing library
* @li @ref lavu "libavutil" common utility library
* @li @ref lswr "libswresample" audio resampling, format conversion and mixing
* @li @ref lpp "libpostproc" post processing library
* @li @ref libsws "libswscale" color conversion and scaling library
*
* @section ffmpeg_versioning Versioning and compatibility
*
* Each of the FFmpeg libraries contains a version.h header, which defines a
* major, minor and micro version number with the
* <em>LIBRARYNAME_VERSION_{MAJOR,MINOR,MICRO}</em> macros. The major version
* number is incremented with backward incompatible changes - e.g. removing
* parts of the public API, reordering public struct members, etc. The minor
* version number is incremented for backward compatible API changes or major
* new features - e.g. adding a new public function or a new decoder. The micro
* version number is incremented for smaller changes that a calling program
* might still want to check for - e.g. changing behavior in a previously
* unspecified situation.
*
* FFmpeg guarantees backward API and ABI compatibility for each library as long
* as its major version number is unchanged. This means that no public symbols
* will be removed or renamed. Types and names of the public struct members and
* values of public macros and enums will remain the same (unless they were
* explicitly declared as not part of the public API). Documented behavior will
* not change.
*
* In other words, any correct program that works with a given FFmpeg snapshot
* should work just as well without any changes with any later snapshot with the
* same major versions. This applies to both rebuilding the program against new
* FFmpeg versions or to replacing the dynamic FFmpeg libraries that a program
* links against.
*
* However, new public symbols may be added and new members may be appended to
* public structs whose size is not part of public ABI (most public structs in
* FFmpeg). New macros and enum values may be added. Behavior in undocumented
* situations may change slightly (and be documented). All those are accompanied
* by an entry in doc/APIchanges and incrementing either the minor or micro
* version number.
*/
/**
* @defgroup lavu libavutil
* Common code shared across all FFmpeg libraries.
*
* @note
* libavutil is designed to be modular. In most cases, in order to use the
* functions provided by one component of libavutil you must explicitly include
* the specific header containing that feature. If you are only using
* media-related components, you could simply include libavutil/avutil.h, which
* brings in most of the "core" components.
*
* @{
*
* @defgroup lavu_crypto Crypto and Hashing
*
* @{
* @}
*
* @defgroup lavu_math Mathematics
* @{
*
* @}
*
* @defgroup lavu_string String Manipulation
*
* @{
*
* @}
*
* @defgroup lavu_mem Memory Management
*
* @{
*
* @}
*
* @defgroup lavu_data Data Structures
* @{
*
* @}
*
* @defgroup lavu_video Video related
*
* @{
*
* @}
*
* @defgroup lavu_audio Audio related
*
* @{
*
* @}
*
* @defgroup lavu_error Error Codes
*
* @{
*
* @}
*
* @defgroup lavu_log Logging Facility
*
* @{
*
* @}
*
* @defgroup lavu_misc Other
*
* @{
*
* @defgroup preproc_misc Preprocessor String Macros
*
* @{
*
* @}
*
* @defgroup version_utils Library Version Macros
*
* @{
*
* @}
*/
/**
* @addtogroup lavu_ver
* @{
*/
/**
* Return the LIBAVUTIL_VERSION_INT constant.
*/
unsigned avutil_version(void);
/**
* Return an informative version string. This usually is the actual release
* version number or a git commit description. This string has no fixed format
* and can change any time. It should never be parsed by code.
*/
const char *av_version_info(void);
/**
* Return the libavutil build-time configuration.
*/
const char *avutil_configuration(void);
/**
* Return the libavutil license.
*/
const char *avutil_license(void);
/**
* @}
*/
/**
* @addtogroup lavu_media Media Type
* @brief Media Type
*/
enum AVMediaType {
AVMEDIA_TYPE_UNKNOWN = -1, ///< Usually treated as AVMEDIA_TYPE_DATA
AVMEDIA_TYPE_VIDEO,
AVMEDIA_TYPE_AUDIO,
AVMEDIA_TYPE_DATA, ///< Opaque data information usually continuous
AVMEDIA_TYPE_SUBTITLE,
AVMEDIA_TYPE_ATTACHMENT, ///< Opaque data information usually sparse
AVMEDIA_TYPE_NB
};
/**
* Return a string describing the media_type enum, NULL if media_type
* is unknown.
*/
const char *av_get_media_type_string(enum AVMediaType media_type);
/**
* @defgroup lavu_const Constants
* @{
*
* @defgroup lavu_enc Encoding specific
*
* @note those definition should move to avcodec
* @{
*/
#define FF_LAMBDA_SHIFT 7
#define FF_LAMBDA_SCALE (1<<FF_LAMBDA_SHIFT)
#define FF_QP2LAMBDA 118 ///< factor to convert from H.263 QP to lambda
#define FF_LAMBDA_MAX (256*128-1)
#define FF_QUALITY_SCALE FF_LAMBDA_SCALE //FIXME maybe remove
/**
* @}
* @defgroup lavu_time Timestamp specific
*
* FFmpeg internal timebase and timestamp definitions
*
* @{
*/
/**
* @brief Undefined timestamp value
*
* Usually reported by demuxer that work on containers that do not provide
* either pts or dts.
*/
#define AV_NOPTS_VALUE ((int64_t)UINT64_C(0x8000000000000000))
/**
* Internal time base represented as integer
*/
#define AV_TIME_BASE 1000000
/**
* Internal time base represented as fractional value
*/
#ifdef __cplusplus
/* ISO C++ forbids compound-literals. */
#define AV_TIME_BASE_Q av_make_q(1, AV_TIME_BASE)
#else
#define AV_TIME_BASE_Q (AVRational){1, AV_TIME_BASE}
#endif
/**
* @}
* @}
* @defgroup lavu_picture Image related
*
* AVPicture types, pixel formats and basic image planes manipulation.
*
* @{
*/
enum AVPictureType {
AV_PICTURE_TYPE_NONE = 0, ///< Undefined
AV_PICTURE_TYPE_I, ///< Intra
AV_PICTURE_TYPE_P, ///< Predicted
AV_PICTURE_TYPE_B, ///< Bi-dir predicted
AV_PICTURE_TYPE_S, ///< S(GMC)-VOP MPEG-4
AV_PICTURE_TYPE_SI, ///< Switching Intra
AV_PICTURE_TYPE_SP, ///< Switching Predicted
AV_PICTURE_TYPE_BI, ///< BI type
};
/**
* Return a single letter to describe the given picture type
* pict_type.
*
* @param[in] pict_type the picture type @return a single character
* representing the picture type, '?' if pict_type is unknown
*/
char av_get_picture_type_char(enum AVPictureType pict_type);
/**
* @}
*/
#include "common.h"
#include "rational.h"
#include "version.h"
#include "macros.h"
#include "mathematics.h"
#include "log.h"
#include "pixfmt.h"
/**
* Return x default pointer in case p is NULL.
*/
static inline void *av_x_if_null(const void *p, const void *x)
{
return (void *)(intptr_t)(p ? p : x);
}
/**
* Compute the length of an integer list.
*
* @param elsize size in bytes of each list element (only 1, 2, 4 or 8)
* @param term list terminator (usually 0 or -1)
* @param list pointer to the list
* @return length of the list, in elements, not counting the terminator
*/
unsigned av_int_list_length_for_size(unsigned elsize,
const void *list, uint64_t term) av_pure;
/**
* Compute the length of an integer list.
*
* @param term list terminator (usually 0 or -1)
* @param list pointer to the list
* @return length of the list, in elements, not counting the terminator
*/
#define av_int_list_length(list, term) \
av_int_list_length_for_size(sizeof(*(list)), list, term)
#if FF_API_AV_FOPEN_UTF8
/**
* Open a file using a UTF-8 filename.
* The API of this function matches POSIX fopen(), errors are returned through
* errno.
* @deprecated Avoid using it, as on Windows, the FILE* allocated by this
* function may be allocated with a different CRT than the caller
* who uses the FILE*. No replacement provided in public API.
*/
attribute_deprecated
FILE *av_fopen_utf8(const char *path, const char *mode);
#endif
/**
* Return the fractional representation of the internal time base.
*/
AVRational av_get_time_base_q(void);
#define AV_FOURCC_MAX_STRING_SIZE 32
#define av_fourcc2str(fourcc) av_fourcc_make_string((char[AV_FOURCC_MAX_STRING_SIZE]){0}, fourcc)
/**
* Fill the provided buffer with a string containing a FourCC (four-character
* code) representation.
*
* @param buf a buffer with size in bytes of at least AV_FOURCC_MAX_STRING_SIZE
* @param fourcc the fourcc to represent
* @return the buffer in input
*/
char *av_fourcc_make_string(char *buf, uint32_t fourcc);
/**
* @}
* @}
*/
#endif /* AVUTIL_AVUTIL_H */

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/*
* Copyright (c) 2006 Ryan Martell. (rdm4@martellventures.com)
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVUTIL_BASE64_H
#define AVUTIL_BASE64_H
#include <stdint.h>
/**
* @defgroup lavu_base64 Base64
* @ingroup lavu_crypto
* @{
*/
/**
* Decode a base64-encoded string.
*
* @param out buffer for decoded data
* @param in null-terminated input string
* @param out_size size in bytes of the out buffer, must be at
* least 3/4 of the length of in, that is AV_BASE64_DECODE_SIZE(strlen(in))
* @return number of bytes written, or a negative value in case of
* invalid input
*/
int av_base64_decode(uint8_t *out, const char *in, int out_size);
/**
* Calculate the output size in bytes needed to decode a base64 string
* with length x to a data buffer.
*/
#define AV_BASE64_DECODE_SIZE(x) ((x) * 3LL / 4)
/**
* Encode data to base64 and null-terminate.
*
* @param out buffer for encoded data
* @param out_size size in bytes of the out buffer (including the
* null terminator), must be at least AV_BASE64_SIZE(in_size)
* @param in input buffer containing the data to encode
* @param in_size size in bytes of the in buffer
* @return out or NULL in case of error
*/
char *av_base64_encode(char *out, int out_size, const uint8_t *in, int in_size);
/**
* Calculate the output size needed to base64-encode x bytes to a
* null-terminated string.
*/
#define AV_BASE64_SIZE(x) (((x)+2) / 3 * 4 + 1)
/**
* @}
*/
#endif /* AVUTIL_BASE64_H */

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/*
* Blowfish algorithm
* Copyright (c) 2012 Samuel Pitoiset
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVUTIL_BLOWFISH_H
#define AVUTIL_BLOWFISH_H
#include <stdint.h>
/**
* @defgroup lavu_blowfish Blowfish
* @ingroup lavu_crypto
* @{
*/
#define AV_BF_ROUNDS 16
typedef struct AVBlowfish {
uint32_t p[AV_BF_ROUNDS + 2];
uint32_t s[4][256];
} AVBlowfish;
/**
* Allocate an AVBlowfish context.
*/
AVBlowfish *av_blowfish_alloc(void);
/**
* Initialize an AVBlowfish context.
*
* @param ctx an AVBlowfish context
* @param key a key
* @param key_len length of the key
*/
void av_blowfish_init(struct AVBlowfish *ctx, const uint8_t *key, int key_len);
/**
* Encrypt or decrypt a buffer using a previously initialized context.
*
* @param ctx an AVBlowfish context
* @param xl left four bytes halves of input to be encrypted
* @param xr right four bytes halves of input to be encrypted
* @param decrypt 0 for encryption, 1 for decryption
*/
void av_blowfish_crypt_ecb(struct AVBlowfish *ctx, uint32_t *xl, uint32_t *xr,
int decrypt);
/**
* Encrypt or decrypt a buffer using a previously initialized context.
*
* @param ctx an AVBlowfish context
* @param dst destination array, can be equal to src
* @param src source array, can be equal to dst
* @param count number of 8 byte blocks
* @param iv initialization vector for CBC mode, if NULL ECB will be used
* @param decrypt 0 for encryption, 1 for decryption
*/
void av_blowfish_crypt(struct AVBlowfish *ctx, uint8_t *dst, const uint8_t *src,
int count, uint8_t *iv, int decrypt);
/**
* @}
*/
#endif /* AVUTIL_BLOWFISH_H */

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/*
* Copyright (c) 2012 Nicolas George
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file
* @ingroup lavu_avbprint
* AVBPrint public header
*/
#ifndef AVUTIL_BPRINT_H
#define AVUTIL_BPRINT_H
#include <stdarg.h>
#include "attributes.h"
#include "avstring.h"
/**
* @defgroup lavu_avbprint AVBPrint
* @ingroup lavu_data
*
* A buffer to print data progressively
* @{
*/
/**
* Define a structure with extra padding to a fixed size
* This helps ensuring binary compatibility with future versions.
*/
#define FF_PAD_STRUCTURE(name, size, ...) \
struct ff_pad_helper_##name { __VA_ARGS__ }; \
typedef struct name { \
__VA_ARGS__ \
char reserved_padding[size - sizeof(struct ff_pad_helper_##name)]; \
} name;
/**
* Buffer to print data progressively
*
* The string buffer grows as necessary and is always 0-terminated.
* The content of the string is never accessed, and thus is
* encoding-agnostic and can even hold binary data.
*
* Small buffers are kept in the structure itself, and thus require no
* memory allocation at all (unless the contents of the buffer is needed
* after the structure goes out of scope). This is almost as lightweight as
* declaring a local `char buf[512]`.
*
* The length of the string can go beyond the allocated size: the buffer is
* then truncated, but the functions still keep account of the actual total
* length.
*
* In other words, AVBPrint.len can be greater than AVBPrint.size and records
* the total length of what would have been to the buffer if there had been
* enough memory.
*
* Append operations do not need to be tested for failure: if a memory
* allocation fails, data stop being appended to the buffer, but the length
* is still updated. This situation can be tested with
* av_bprint_is_complete().
*
* The AVBPrint.size_max field determines several possible behaviours:
* - `size_max = -1` (= `UINT_MAX`) or any large value will let the buffer be
* reallocated as necessary, with an amortized linear cost.
* - `size_max = 0` prevents writing anything to the buffer: only the total
* length is computed. The write operations can then possibly be repeated in
* a buffer with exactly the necessary size
* (using `size_init = size_max = len + 1`).
* - `size_max = 1` is automatically replaced by the exact size available in the
* structure itself, thus ensuring no dynamic memory allocation. The
* internal buffer is large enough to hold a reasonable paragraph of text,
* such as the current paragraph.
*/
FF_PAD_STRUCTURE(AVBPrint, 1024,
char *str; /**< string so far */
unsigned len; /**< length so far */
unsigned size; /**< allocated memory */
unsigned size_max; /**< maximum allocated memory */
char reserved_internal_buffer[1];
)
/**
* @name Max size special values
* Convenience macros for special values for av_bprint_init() size_max
* parameter.
* @{
*/
/**
* Buffer will be reallocated as necessary, with an amortized linear cost.
*/
#define AV_BPRINT_SIZE_UNLIMITED ((unsigned)-1)
/**
* Use the exact size available in the AVBPrint structure itself.
*
* Thus ensuring no dynamic memory allocation. The internal buffer is large
* enough to hold a reasonable paragraph of text, such as the current paragraph.
*/
#define AV_BPRINT_SIZE_AUTOMATIC 1
/**
* Do not write anything to the buffer, only calculate the total length.
*
* The write operations can then possibly be repeated in a buffer with
* exactly the necessary size (using `size_init = size_max = AVBPrint.len + 1`).
*/
#define AV_BPRINT_SIZE_COUNT_ONLY 0
/** @} */
/**
* Init a print buffer.
*
* @param buf buffer to init
* @param size_init initial size (including the final 0)
* @param size_max maximum size;
* - `0` means do not write anything, just count the length
* - `1` is replaced by the maximum value for automatic storage
* any large value means that the internal buffer will be
* reallocated as needed up to that limit
* - `-1` is converted to `UINT_MAX`, the largest limit possible.
* Check also `AV_BPRINT_SIZE_*` macros.
*/
void av_bprint_init(AVBPrint *buf, unsigned size_init, unsigned size_max);
/**
* Init a print buffer using a pre-existing buffer.
*
* The buffer will not be reallocated.
* In case size equals zero, the AVBPrint will be initialized to use
* the internal buffer as if using AV_BPRINT_SIZE_COUNT_ONLY with
* av_bprint_init().
*
* @param buf buffer structure to init
* @param buffer byte buffer to use for the string data
* @param size size of buffer
*/
void av_bprint_init_for_buffer(AVBPrint *buf, char *buffer, unsigned size);
/**
* Append a formatted string to a print buffer.
*/
void av_bprintf(AVBPrint *buf, const char *fmt, ...) av_printf_format(2, 3);
/**
* Append a formatted string to a print buffer.
*/
void av_vbprintf(AVBPrint *buf, const char *fmt, va_list vl_arg);
/**
* Append char c n times to a print buffer.
*/
void av_bprint_chars(AVBPrint *buf, char c, unsigned n);
/**
* Append data to a print buffer.
*
* param buf bprint buffer to use
* param data pointer to data
* param size size of data
*/
void av_bprint_append_data(AVBPrint *buf, const char *data, unsigned size);
struct tm;
/**
* Append a formatted date and time to a print buffer.
*
* param buf bprint buffer to use
* param fmt date and time format string, see strftime()
* param tm broken-down time structure to translate
*
* @note due to poor design of the standard strftime function, it may
* produce poor results if the format string expands to a very long text and
* the bprint buffer is near the limit stated by the size_max option.
*/
void av_bprint_strftime(AVBPrint *buf, const char *fmt, const struct tm *tm);
/**
* Allocate bytes in the buffer for external use.
*
* @param[in] buf buffer structure
* @param[in] size required size
* @param[out] mem pointer to the memory area
* @param[out] actual_size size of the memory area after allocation;
* can be larger or smaller than size
*/
void av_bprint_get_buffer(AVBPrint *buf, unsigned size,
unsigned char **mem, unsigned *actual_size);
/**
* Reset the string to "" but keep internal allocated data.
*/
void av_bprint_clear(AVBPrint *buf);
/**
* Test if the print buffer is complete (not truncated).
*
* It may have been truncated due to a memory allocation failure
* or the size_max limit (compare size and size_max if necessary).
*/
static inline int av_bprint_is_complete(const AVBPrint *buf)
{
return buf->len < buf->size;
}
/**
* Finalize a print buffer.
*
* The print buffer can no longer be used afterwards,
* but the len and size fields are still valid.
*
* @arg[out] ret_str if not NULL, used to return a permanent copy of the
* buffer contents, or NULL if memory allocation fails;
* if NULL, the buffer is discarded and freed
* @return 0 for success or error code (probably AVERROR(ENOMEM))
*/
int av_bprint_finalize(AVBPrint *buf, char **ret_str);
/**
* Escape the content in src and append it to dstbuf.
*
* @param dstbuf already inited destination bprint buffer
* @param src string containing the text to escape
* @param special_chars string containing the special characters which
* need to be escaped, can be NULL
* @param mode escape mode to employ, see AV_ESCAPE_MODE_* macros.
* Any unknown value for mode will be considered equivalent to
* AV_ESCAPE_MODE_BACKSLASH, but this behaviour can change without
* notice.
* @param flags flags which control how to escape, see AV_ESCAPE_FLAG_* macros
*/
void av_bprint_escape(AVBPrint *dstbuf, const char *src, const char *special_chars,
enum AVEscapeMode mode, int flags);
/** @} */
#endif /* AVUTIL_BPRINT_H */

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/*
* copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file
* byte swapping routines
*/
#ifndef AVUTIL_BSWAP_H
#define AVUTIL_BSWAP_H
#include <stdint.h>
#include "libavutil/avconfig.h"
#include "attributes.h"
#ifdef HAVE_AV_CONFIG_H
#include "config.h"
#if ARCH_AARCH64
# include "aarch64/bswap.h"
#elif ARCH_ARM
# include "arm/bswap.h"
#elif ARCH_AVR32
# include "avr32/bswap.h"
#elif ARCH_RISCV
# include "riscv/bswap.h"
#elif ARCH_SH4
# include "sh4/bswap.h"
#elif ARCH_X86
# include "x86/bswap.h"
#endif
#endif /* HAVE_AV_CONFIG_H */
#define AV_BSWAP16C(x) (((x) << 8 & 0xff00) | ((x) >> 8 & 0x00ff))
#define AV_BSWAP32C(x) (AV_BSWAP16C(x) << 16 | AV_BSWAP16C((x) >> 16))
#define AV_BSWAP64C(x) (AV_BSWAP32C(x) << 32 | AV_BSWAP32C((x) >> 32))
#define AV_BSWAPC(s, x) AV_BSWAP##s##C(x)
#ifndef av_bswap16
static av_always_inline av_const uint16_t av_bswap16(uint16_t x)
{
x= (x>>8) | (x<<8);
return x;
}
#endif
#ifndef av_bswap32
static av_always_inline av_const uint32_t av_bswap32(uint32_t x)
{
return AV_BSWAP32C(x);
}
#endif
#ifndef av_bswap64
static inline uint64_t av_const av_bswap64(uint64_t x)
{
return (uint64_t)av_bswap32((uint32_t)x) << 32 | av_bswap32((uint32_t)(x >> 32));
}
#endif
// be2ne ... big-endian to native-endian
// le2ne ... little-endian to native-endian
#if AV_HAVE_BIGENDIAN
#define av_be2ne16(x) (x)
#define av_be2ne32(x) (x)
#define av_be2ne64(x) (x)
#define av_le2ne16(x) av_bswap16(x)
#define av_le2ne32(x) av_bswap32(x)
#define av_le2ne64(x) av_bswap64(x)
#define AV_BE2NEC(s, x) (x)
#define AV_LE2NEC(s, x) AV_BSWAPC(s, x)
#else
#define av_be2ne16(x) av_bswap16(x)
#define av_be2ne32(x) av_bswap32(x)
#define av_be2ne64(x) av_bswap64(x)
#define av_le2ne16(x) (x)
#define av_le2ne32(x) (x)
#define av_le2ne64(x) (x)
#define AV_BE2NEC(s, x) AV_BSWAPC(s, x)
#define AV_LE2NEC(s, x) (x)
#endif
#define AV_BE2NE16C(x) AV_BE2NEC(16, x)
#define AV_BE2NE32C(x) AV_BE2NEC(32, x)
#define AV_BE2NE64C(x) AV_BE2NEC(64, x)
#define AV_LE2NE16C(x) AV_LE2NEC(16, x)
#define AV_LE2NE32C(x) AV_LE2NEC(32, x)
#define AV_LE2NE64C(x) AV_LE2NEC(64, x)
#endif /* AVUTIL_BSWAP_H */

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/*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file
* @ingroup lavu_buffer
* refcounted data buffer API
*/
#ifndef AVUTIL_BUFFER_H
#define AVUTIL_BUFFER_H
#include <stddef.h>
#include <stdint.h>
/**
* @defgroup lavu_buffer AVBuffer
* @ingroup lavu_data
*
* @{
* AVBuffer is an API for reference-counted data buffers.
*
* There are two core objects in this API -- AVBuffer and AVBufferRef. AVBuffer
* represents the data buffer itself; it is opaque and not meant to be accessed
* by the caller directly, but only through AVBufferRef. However, the caller may
* e.g. compare two AVBuffer pointers to check whether two different references
* are describing the same data buffer. AVBufferRef represents a single
* reference to an AVBuffer and it is the object that may be manipulated by the
* caller directly.
*
* There are two functions provided for creating a new AVBuffer with a single
* reference -- av_buffer_alloc() to just allocate a new buffer, and
* av_buffer_create() to wrap an existing array in an AVBuffer. From an existing
* reference, additional references may be created with av_buffer_ref().
* Use av_buffer_unref() to free a reference (this will automatically free the
* data once all the references are freed).
*
* The convention throughout this API and the rest of FFmpeg is such that the
* buffer is considered writable if there exists only one reference to it (and
* it has not been marked as read-only). The av_buffer_is_writable() function is
* provided to check whether this is true and av_buffer_make_writable() will
* automatically create a new writable buffer when necessary.
* Of course nothing prevents the calling code from violating this convention,
* however that is safe only when all the existing references are under its
* control.
*
* @note Referencing and unreferencing the buffers is thread-safe and thus
* may be done from multiple threads simultaneously without any need for
* additional locking.
*
* @note Two different references to the same buffer can point to different
* parts of the buffer (i.e. their AVBufferRef.data will not be equal).
*/
/**
* A reference counted buffer type. It is opaque and is meant to be used through
* references (AVBufferRef).
*/
typedef struct AVBuffer AVBuffer;
/**
* A reference to a data buffer.
*
* The size of this struct is not a part of the public ABI and it is not meant
* to be allocated directly.
*/
typedef struct AVBufferRef {
AVBuffer *buffer;
/**
* The data buffer. It is considered writable if and only if
* this is the only reference to the buffer, in which case
* av_buffer_is_writable() returns 1.
*/
uint8_t *data;
/**
* Size of data in bytes.
*/
size_t size;
} AVBufferRef;
/**
* Allocate an AVBuffer of the given size using av_malloc().
*
* @return an AVBufferRef of given size or NULL when out of memory
*/
AVBufferRef *av_buffer_alloc(size_t size);
/**
* Same as av_buffer_alloc(), except the returned buffer will be initialized
* to zero.
*/
AVBufferRef *av_buffer_allocz(size_t size);
/**
* Always treat the buffer as read-only, even when it has only one
* reference.
*/
#define AV_BUFFER_FLAG_READONLY (1 << 0)
/**
* Create an AVBuffer from an existing array.
*
* If this function is successful, data is owned by the AVBuffer. The caller may
* only access data through the returned AVBufferRef and references derived from
* it.
* If this function fails, data is left untouched.
* @param data data array
* @param size size of data in bytes
* @param free a callback for freeing this buffer's data
* @param opaque parameter to be got for processing or passed to free
* @param flags a combination of AV_BUFFER_FLAG_*
*
* @return an AVBufferRef referring to data on success, NULL on failure.
*/
AVBufferRef *av_buffer_create(uint8_t *data, size_t size,
void (*free)(void *opaque, uint8_t *data),
void *opaque, int flags);
/**
* Default free callback, which calls av_free() on the buffer data.
* This function is meant to be passed to av_buffer_create(), not called
* directly.
*/
void av_buffer_default_free(void *opaque, uint8_t *data);
/**
* Create a new reference to an AVBuffer.
*
* @return a new AVBufferRef referring to the same AVBuffer as buf or NULL on
* failure.
*/
AVBufferRef *av_buffer_ref(const AVBufferRef *buf);
/**
* Free a given reference and automatically free the buffer if there are no more
* references to it.
*
* @param buf the reference to be freed. The pointer is set to NULL on return.
*/
void av_buffer_unref(AVBufferRef **buf);
/**
* @return 1 if the caller may write to the data referred to by buf (which is
* true if and only if buf is the only reference to the underlying AVBuffer).
* Return 0 otherwise.
* A positive answer is valid until av_buffer_ref() is called on buf.
*/
int av_buffer_is_writable(const AVBufferRef *buf);
/**
* @return the opaque parameter set by av_buffer_create.
*/
void *av_buffer_get_opaque(const AVBufferRef *buf);
int av_buffer_get_ref_count(const AVBufferRef *buf);
/**
* Create a writable reference from a given buffer reference, avoiding data copy
* if possible.
*
* @param buf buffer reference to make writable. On success, buf is either left
* untouched, or it is unreferenced and a new writable AVBufferRef is
* written in its place. On failure, buf is left untouched.
* @return 0 on success, a negative AVERROR on failure.
*/
int av_buffer_make_writable(AVBufferRef **buf);
/**
* Reallocate a given buffer.
*
* @param buf a buffer reference to reallocate. On success, buf will be
* unreferenced and a new reference with the required size will be
* written in its place. On failure buf will be left untouched. *buf
* may be NULL, then a new buffer is allocated.
* @param size required new buffer size.
* @return 0 on success, a negative AVERROR on failure.
*
* @note the buffer is actually reallocated with av_realloc() only if it was
* initially allocated through av_buffer_realloc(NULL) and there is only one
* reference to it (i.e. the one passed to this function). In all other cases
* a new buffer is allocated and the data is copied.
*/
int av_buffer_realloc(AVBufferRef **buf, size_t size);
/**
* Ensure dst refers to the same data as src.
*
* When *dst is already equivalent to src, do nothing. Otherwise unreference dst
* and replace it with a new reference to src.
*
* @param dst Pointer to either a valid buffer reference or NULL. On success,
* this will point to a buffer reference equivalent to src. On
* failure, dst will be left untouched.
* @param src A buffer reference to replace dst with. May be NULL, then this
* function is equivalent to av_buffer_unref(dst).
* @return 0 on success
* AVERROR(ENOMEM) on memory allocation failure.
*/
int av_buffer_replace(AVBufferRef **dst, const AVBufferRef *src);
/**
* @}
*/
/**
* @defgroup lavu_bufferpool AVBufferPool
* @ingroup lavu_data
*
* @{
* AVBufferPool is an API for a lock-free thread-safe pool of AVBuffers.
*
* Frequently allocating and freeing large buffers may be slow. AVBufferPool is
* meant to solve this in cases when the caller needs a set of buffers of the
* same size (the most obvious use case being buffers for raw video or audio
* frames).
*
* At the beginning, the user must call av_buffer_pool_init() to create the
* buffer pool. Then whenever a buffer is needed, call av_buffer_pool_get() to
* get a reference to a new buffer, similar to av_buffer_alloc(). This new
* reference works in all aspects the same way as the one created by
* av_buffer_alloc(). However, when the last reference to this buffer is
* unreferenced, it is returned to the pool instead of being freed and will be
* reused for subsequent av_buffer_pool_get() calls.
*
* When the caller is done with the pool and no longer needs to allocate any new
* buffers, av_buffer_pool_uninit() must be called to mark the pool as freeable.
* Once all the buffers are released, it will automatically be freed.
*
* Allocating and releasing buffers with this API is thread-safe as long as
* either the default alloc callback is used, or the user-supplied one is
* thread-safe.
*/
/**
* The buffer pool. This structure is opaque and not meant to be accessed
* directly. It is allocated with av_buffer_pool_init() and freed with
* av_buffer_pool_uninit().
*/
typedef struct AVBufferPool AVBufferPool;
/**
* Allocate and initialize a buffer pool.
*
* @param size size of each buffer in this pool
* @param alloc a function that will be used to allocate new buffers when the
* pool is empty. May be NULL, then the default allocator will be used
* (av_buffer_alloc()).
* @return newly created buffer pool on success, NULL on error.
*/
AVBufferPool *av_buffer_pool_init(size_t size, AVBufferRef* (*alloc)(size_t size));
/**
* Allocate and initialize a buffer pool with a more complex allocator.
*
* @param size size of each buffer in this pool
* @param opaque arbitrary user data used by the allocator
* @param alloc a function that will be used to allocate new buffers when the
* pool is empty. May be NULL, then the default allocator will be
* used (av_buffer_alloc()).
* @param pool_free a function that will be called immediately before the pool
* is freed. I.e. after av_buffer_pool_uninit() is called
* by the caller and all the frames are returned to the pool
* and freed. It is intended to uninitialize the user opaque
* data. May be NULL.
* @return newly created buffer pool on success, NULL on error.
*/
AVBufferPool *av_buffer_pool_init2(size_t size, void *opaque,
AVBufferRef* (*alloc)(void *opaque, size_t size),
void (*pool_free)(void *opaque));
/**
* Mark the pool as being available for freeing. It will actually be freed only
* once all the allocated buffers associated with the pool are released. Thus it
* is safe to call this function while some of the allocated buffers are still
* in use.
*
* @param pool pointer to the pool to be freed. It will be set to NULL.
*/
void av_buffer_pool_uninit(AVBufferPool **pool);
/**
* Allocate a new AVBuffer, reusing an old buffer from the pool when available.
* This function may be called simultaneously from multiple threads.
*
* @return a reference to the new buffer on success, NULL on error.
*/
AVBufferRef *av_buffer_pool_get(AVBufferPool *pool);
/**
* Query the original opaque parameter of an allocated buffer in the pool.
*
* @param ref a buffer reference to a buffer returned by av_buffer_pool_get.
* @return the opaque parameter set by the buffer allocator function of the
* buffer pool.
*
* @note the opaque parameter of ref is used by the buffer pool implementation,
* therefore you have to use this function to access the original opaque
* parameter of an allocated buffer.
*/
void *av_buffer_pool_buffer_get_opaque(const AVBufferRef *ref);
/**
* @}
*/
#endif /* AVUTIL_BUFFER_H */

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/*
* An implementation of the CAMELLIA algorithm as mentioned in RFC3713
* Copyright (c) 2014 Supraja Meedinti
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVUTIL_CAMELLIA_H
#define AVUTIL_CAMELLIA_H
#include <stdint.h>
/**
* @file
* @brief Public header for libavutil CAMELLIA algorithm
* @defgroup lavu_camellia CAMELLIA
* @ingroup lavu_crypto
* @{
*/
extern const int av_camellia_size;
struct AVCAMELLIA;
/**
* Allocate an AVCAMELLIA context
* To free the struct: av_free(ptr)
*/
struct AVCAMELLIA *av_camellia_alloc(void);
/**
* Initialize an AVCAMELLIA context.
*
* @param ctx an AVCAMELLIA context
* @param key a key of 16, 24, 32 bytes used for encryption/decryption
* @param key_bits number of keybits: possible are 128, 192, 256
*/
int av_camellia_init(struct AVCAMELLIA *ctx, const uint8_t *key, int key_bits);
/**
* Encrypt or decrypt a buffer using a previously initialized context
*
* @param ctx an AVCAMELLIA context
* @param dst destination array, can be equal to src
* @param src source array, can be equal to dst
* @param count number of 16 byte blocks
* @param iv initialization vector for CBC mode, NULL for ECB mode
* @param decrypt 0 for encryption, 1 for decryption
*/
void av_camellia_crypt(struct AVCAMELLIA *ctx, uint8_t *dst, const uint8_t *src, int count, uint8_t* iv, int decrypt);
/**
* @}
*/
#endif /* AVUTIL_CAMELLIA_H */

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/*
* An implementation of the CAST128 algorithm as mentioned in RFC2144
* Copyright (c) 2014 Supraja Meedinti
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVUTIL_CAST5_H
#define AVUTIL_CAST5_H
#include <stdint.h>
/**
* @file
* @brief Public header for libavutil CAST5 algorithm
* @defgroup lavu_cast5 CAST5
* @ingroup lavu_crypto
* @{
*/
extern const int av_cast5_size;
struct AVCAST5;
/**
* Allocate an AVCAST5 context
* To free the struct: av_free(ptr)
*/
struct AVCAST5 *av_cast5_alloc(void);
/**
* Initialize an AVCAST5 context.
*
* @param ctx an AVCAST5 context
* @param key a key of 5,6,...16 bytes used for encryption/decryption
* @param key_bits number of keybits: possible are 40,48,...,128
* @return 0 on success, less than 0 on failure
*/
int av_cast5_init(struct AVCAST5 *ctx, const uint8_t *key, int key_bits);
/**
* Encrypt or decrypt a buffer using a previously initialized context, ECB mode only
*
* @param ctx an AVCAST5 context
* @param dst destination array, can be equal to src
* @param src source array, can be equal to dst
* @param count number of 8 byte blocks
* @param decrypt 0 for encryption, 1 for decryption
*/
void av_cast5_crypt(struct AVCAST5 *ctx, uint8_t *dst, const uint8_t *src, int count, int decrypt);
/**
* Encrypt or decrypt a buffer using a previously initialized context
*
* @param ctx an AVCAST5 context
* @param dst destination array, can be equal to src
* @param src source array, can be equal to dst
* @param count number of 8 byte blocks
* @param iv initialization vector for CBC mode, NULL for ECB mode
* @param decrypt 0 for encryption, 1 for decryption
*/
void av_cast5_crypt2(struct AVCAST5 *ctx, uint8_t *dst, const uint8_t *src, int count, uint8_t *iv, int decrypt);
/**
* @}
*/
#endif /* AVUTIL_CAST5_H */

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/*
* Copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
* Copyright (c) 2008 Peter Ross
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVUTIL_CHANNEL_LAYOUT_H
#define AVUTIL_CHANNEL_LAYOUT_H
#include <stdint.h>
#include <stdlib.h>
#include "version.h"
#include "attributes.h"
/**
* @file
* @ingroup lavu_audio_channels
* Public libavutil channel layout APIs header.
*/
/**
* @defgroup lavu_audio_channels Audio channels
* @ingroup lavu_audio
*
* Audio channel layout utility functions
*
* @{
*/
enum AVChannel {
///< Invalid channel index
AV_CHAN_NONE = -1,
AV_CHAN_FRONT_LEFT,
AV_CHAN_FRONT_RIGHT,
AV_CHAN_FRONT_CENTER,
AV_CHAN_LOW_FREQUENCY,
AV_CHAN_BACK_LEFT,
AV_CHAN_BACK_RIGHT,
AV_CHAN_FRONT_LEFT_OF_CENTER,
AV_CHAN_FRONT_RIGHT_OF_CENTER,
AV_CHAN_BACK_CENTER,
AV_CHAN_SIDE_LEFT,
AV_CHAN_SIDE_RIGHT,
AV_CHAN_TOP_CENTER,
AV_CHAN_TOP_FRONT_LEFT,
AV_CHAN_TOP_FRONT_CENTER,
AV_CHAN_TOP_FRONT_RIGHT,
AV_CHAN_TOP_BACK_LEFT,
AV_CHAN_TOP_BACK_CENTER,
AV_CHAN_TOP_BACK_RIGHT,
/** Stereo downmix. */
AV_CHAN_STEREO_LEFT = 29,
/** See above. */
AV_CHAN_STEREO_RIGHT,
AV_CHAN_WIDE_LEFT,
AV_CHAN_WIDE_RIGHT,
AV_CHAN_SURROUND_DIRECT_LEFT,
AV_CHAN_SURROUND_DIRECT_RIGHT,
AV_CHAN_LOW_FREQUENCY_2,
AV_CHAN_TOP_SIDE_LEFT,
AV_CHAN_TOP_SIDE_RIGHT,
AV_CHAN_BOTTOM_FRONT_CENTER,
AV_CHAN_BOTTOM_FRONT_LEFT,
AV_CHAN_BOTTOM_FRONT_RIGHT,
/** Channel is empty can be safely skipped. */
AV_CHAN_UNUSED = 0x200,
/** Channel contains data, but its position is unknown. */
AV_CHAN_UNKNOWN = 0x300,
/**
* Range of channels between AV_CHAN_AMBISONIC_BASE and
* AV_CHAN_AMBISONIC_END represent Ambisonic components using the ACN system.
*
* Given a channel id `<i>` between AV_CHAN_AMBISONIC_BASE and
* AV_CHAN_AMBISONIC_END (inclusive), the ACN index of the channel `<n>` is
* `<n> = <i> - AV_CHAN_AMBISONIC_BASE`.
*
* @note these values are only used for AV_CHANNEL_ORDER_CUSTOM channel
* orderings, the AV_CHANNEL_ORDER_AMBISONIC ordering orders the channels
* implicitly by their position in the stream.
*/
AV_CHAN_AMBISONIC_BASE = 0x400,
// leave space for 1024 ids, which correspond to maximum order-32 harmonics,
// which should be enough for the foreseeable use cases
AV_CHAN_AMBISONIC_END = 0x7ff,
};
enum AVChannelOrder {
/**
* Only the channel count is specified, without any further information
* about the channel order.
*/
AV_CHANNEL_ORDER_UNSPEC,
/**
* The native channel order, i.e. the channels are in the same order in
* which they are defined in the AVChannel enum. This supports up to 63
* different channels.
*/
AV_CHANNEL_ORDER_NATIVE,
/**
* The channel order does not correspond to any other predefined order and
* is stored as an explicit map. For example, this could be used to support
* layouts with 64 or more channels, or with empty/skipped (AV_CHAN_SILENCE)
* channels at arbitrary positions.
*/
AV_CHANNEL_ORDER_CUSTOM,
/**
* The audio is represented as the decomposition of the sound field into
* spherical harmonics. Each channel corresponds to a single expansion
* component. Channels are ordered according to ACN (Ambisonic Channel
* Number).
*
* The channel with the index n in the stream contains the spherical
* harmonic of degree l and order m given by
* @code{.unparsed}
* l = floor(sqrt(n)),
* m = n - l * (l + 1).
* @endcode
*
* Conversely given a spherical harmonic of degree l and order m, the
* corresponding channel index n is given by
* @code{.unparsed}
* n = l * (l + 1) + m.
* @endcode
*
* Normalization is assumed to be SN3D (Schmidt Semi-Normalization)
* as defined in AmbiX format $ 2.1.
*/
AV_CHANNEL_ORDER_AMBISONIC,
};
/**
* @defgroup channel_masks Audio channel masks
*
* A channel layout is a 64-bits integer with a bit set for every channel.
* The number of bits set must be equal to the number of channels.
* The value 0 means that the channel layout is not known.
* @note this data structure is not powerful enough to handle channels
* combinations that have the same channel multiple times, such as
* dual-mono.
*
* @{
*/
#define AV_CH_FRONT_LEFT (1ULL << AV_CHAN_FRONT_LEFT )
#define AV_CH_FRONT_RIGHT (1ULL << AV_CHAN_FRONT_RIGHT )
#define AV_CH_FRONT_CENTER (1ULL << AV_CHAN_FRONT_CENTER )
#define AV_CH_LOW_FREQUENCY (1ULL << AV_CHAN_LOW_FREQUENCY )
#define AV_CH_BACK_LEFT (1ULL << AV_CHAN_BACK_LEFT )
#define AV_CH_BACK_RIGHT (1ULL << AV_CHAN_BACK_RIGHT )
#define AV_CH_FRONT_LEFT_OF_CENTER (1ULL << AV_CHAN_FRONT_LEFT_OF_CENTER )
#define AV_CH_FRONT_RIGHT_OF_CENTER (1ULL << AV_CHAN_FRONT_RIGHT_OF_CENTER)
#define AV_CH_BACK_CENTER (1ULL << AV_CHAN_BACK_CENTER )
#define AV_CH_SIDE_LEFT (1ULL << AV_CHAN_SIDE_LEFT )
#define AV_CH_SIDE_RIGHT (1ULL << AV_CHAN_SIDE_RIGHT )
#define AV_CH_TOP_CENTER (1ULL << AV_CHAN_TOP_CENTER )
#define AV_CH_TOP_FRONT_LEFT (1ULL << AV_CHAN_TOP_FRONT_LEFT )
#define AV_CH_TOP_FRONT_CENTER (1ULL << AV_CHAN_TOP_FRONT_CENTER )
#define AV_CH_TOP_FRONT_RIGHT (1ULL << AV_CHAN_TOP_FRONT_RIGHT )
#define AV_CH_TOP_BACK_LEFT (1ULL << AV_CHAN_TOP_BACK_LEFT )
#define AV_CH_TOP_BACK_CENTER (1ULL << AV_CHAN_TOP_BACK_CENTER )
#define AV_CH_TOP_BACK_RIGHT (1ULL << AV_CHAN_TOP_BACK_RIGHT )
#define AV_CH_STEREO_LEFT (1ULL << AV_CHAN_STEREO_LEFT )
#define AV_CH_STEREO_RIGHT (1ULL << AV_CHAN_STEREO_RIGHT )
#define AV_CH_WIDE_LEFT (1ULL << AV_CHAN_WIDE_LEFT )
#define AV_CH_WIDE_RIGHT (1ULL << AV_CHAN_WIDE_RIGHT )
#define AV_CH_SURROUND_DIRECT_LEFT (1ULL << AV_CHAN_SURROUND_DIRECT_LEFT )
#define AV_CH_SURROUND_DIRECT_RIGHT (1ULL << AV_CHAN_SURROUND_DIRECT_RIGHT)
#define AV_CH_LOW_FREQUENCY_2 (1ULL << AV_CHAN_LOW_FREQUENCY_2 )
#define AV_CH_TOP_SIDE_LEFT (1ULL << AV_CHAN_TOP_SIDE_LEFT )
#define AV_CH_TOP_SIDE_RIGHT (1ULL << AV_CHAN_TOP_SIDE_RIGHT )
#define AV_CH_BOTTOM_FRONT_CENTER (1ULL << AV_CHAN_BOTTOM_FRONT_CENTER )
#define AV_CH_BOTTOM_FRONT_LEFT (1ULL << AV_CHAN_BOTTOM_FRONT_LEFT )
#define AV_CH_BOTTOM_FRONT_RIGHT (1ULL << AV_CHAN_BOTTOM_FRONT_RIGHT )
#if FF_API_OLD_CHANNEL_LAYOUT
/** Channel mask value used for AVCodecContext.request_channel_layout
to indicate that the user requests the channel order of the decoder output
to be the native codec channel order.
@deprecated channel order is now indicated in a special field in
AVChannelLayout
*/
#define AV_CH_LAYOUT_NATIVE 0x8000000000000000ULL
#endif
/**
* @}
* @defgroup channel_mask_c Audio channel layouts
* @{
* */
#define AV_CH_LAYOUT_MONO (AV_CH_FRONT_CENTER)
#define AV_CH_LAYOUT_STEREO (AV_CH_FRONT_LEFT|AV_CH_FRONT_RIGHT)
#define AV_CH_LAYOUT_2POINT1 (AV_CH_LAYOUT_STEREO|AV_CH_LOW_FREQUENCY)
#define AV_CH_LAYOUT_2_1 (AV_CH_LAYOUT_STEREO|AV_CH_BACK_CENTER)
#define AV_CH_LAYOUT_SURROUND (AV_CH_LAYOUT_STEREO|AV_CH_FRONT_CENTER)
#define AV_CH_LAYOUT_3POINT1 (AV_CH_LAYOUT_SURROUND|AV_CH_LOW_FREQUENCY)
#define AV_CH_LAYOUT_4POINT0 (AV_CH_LAYOUT_SURROUND|AV_CH_BACK_CENTER)
#define AV_CH_LAYOUT_4POINT1 (AV_CH_LAYOUT_4POINT0|AV_CH_LOW_FREQUENCY)
#define AV_CH_LAYOUT_2_2 (AV_CH_LAYOUT_STEREO|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT)
#define AV_CH_LAYOUT_QUAD (AV_CH_LAYOUT_STEREO|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT)
#define AV_CH_LAYOUT_5POINT0 (AV_CH_LAYOUT_SURROUND|AV_CH_SIDE_LEFT|AV_CH_SIDE_RIGHT)
#define AV_CH_LAYOUT_5POINT1 (AV_CH_LAYOUT_5POINT0|AV_CH_LOW_FREQUENCY)
#define AV_CH_LAYOUT_5POINT0_BACK (AV_CH_LAYOUT_SURROUND|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT)
#define AV_CH_LAYOUT_5POINT1_BACK (AV_CH_LAYOUT_5POINT0_BACK|AV_CH_LOW_FREQUENCY)
#define AV_CH_LAYOUT_6POINT0 (AV_CH_LAYOUT_5POINT0|AV_CH_BACK_CENTER)
#define AV_CH_LAYOUT_6POINT0_FRONT (AV_CH_LAYOUT_2_2|AV_CH_FRONT_LEFT_OF_CENTER|AV_CH_FRONT_RIGHT_OF_CENTER)
#define AV_CH_LAYOUT_HEXAGONAL (AV_CH_LAYOUT_5POINT0_BACK|AV_CH_BACK_CENTER)
#define AV_CH_LAYOUT_3POINT1POINT2 (AV_CH_LAYOUT_3POINT1|AV_CH_TOP_FRONT_LEFT|AV_CH_TOP_FRONT_RIGHT)
#define AV_CH_LAYOUT_6POINT1 (AV_CH_LAYOUT_5POINT1|AV_CH_BACK_CENTER)
#define AV_CH_LAYOUT_6POINT1_BACK (AV_CH_LAYOUT_5POINT1_BACK|AV_CH_BACK_CENTER)
#define AV_CH_LAYOUT_6POINT1_FRONT (AV_CH_LAYOUT_6POINT0_FRONT|AV_CH_LOW_FREQUENCY)
#define AV_CH_LAYOUT_7POINT0 (AV_CH_LAYOUT_5POINT0|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT)
#define AV_CH_LAYOUT_7POINT0_FRONT (AV_CH_LAYOUT_5POINT0|AV_CH_FRONT_LEFT_OF_CENTER|AV_CH_FRONT_RIGHT_OF_CENTER)
#define AV_CH_LAYOUT_7POINT1 (AV_CH_LAYOUT_5POINT1|AV_CH_BACK_LEFT|AV_CH_BACK_RIGHT)
#define AV_CH_LAYOUT_7POINT1_WIDE (AV_CH_LAYOUT_5POINT1|AV_CH_FRONT_LEFT_OF_CENTER|AV_CH_FRONT_RIGHT_OF_CENTER)
#define AV_CH_LAYOUT_7POINT1_WIDE_BACK (AV_CH_LAYOUT_5POINT1_BACK|AV_CH_FRONT_LEFT_OF_CENTER|AV_CH_FRONT_RIGHT_OF_CENTER)
#define AV_CH_LAYOUT_5POINT1POINT2_BACK (AV_CH_LAYOUT_5POINT1_BACK|AV_CH_TOP_FRONT_LEFT|AV_CH_TOP_FRONT_RIGHT)
#define AV_CH_LAYOUT_OCTAGONAL (AV_CH_LAYOUT_5POINT0|AV_CH_BACK_LEFT|AV_CH_BACK_CENTER|AV_CH_BACK_RIGHT)
#define AV_CH_LAYOUT_CUBE (AV_CH_LAYOUT_QUAD|AV_CH_TOP_FRONT_LEFT|AV_CH_TOP_FRONT_RIGHT|AV_CH_TOP_BACK_LEFT|AV_CH_TOP_BACK_RIGHT)
#define AV_CH_LAYOUT_5POINT1POINT4_BACK (AV_CH_LAYOUT_5POINT1POINT2_BACK|AV_CH_TOP_BACK_LEFT|AV_CH_TOP_BACK_RIGHT)
#define AV_CH_LAYOUT_7POINT1POINT2 (AV_CH_LAYOUT_7POINT1|AV_CH_TOP_FRONT_LEFT|AV_CH_TOP_FRONT_RIGHT)
#define AV_CH_LAYOUT_7POINT1POINT4_BACK (AV_CH_LAYOUT_7POINT1POINT2|AV_CH_TOP_BACK_LEFT|AV_CH_TOP_BACK_RIGHT)
#define AV_CH_LAYOUT_HEXADECAGONAL (AV_CH_LAYOUT_OCTAGONAL|AV_CH_WIDE_LEFT|AV_CH_WIDE_RIGHT|AV_CH_TOP_BACK_LEFT|AV_CH_TOP_BACK_RIGHT|AV_CH_TOP_BACK_CENTER|AV_CH_TOP_FRONT_CENTER|AV_CH_TOP_FRONT_LEFT|AV_CH_TOP_FRONT_RIGHT)
#define AV_CH_LAYOUT_STEREO_DOWNMIX (AV_CH_STEREO_LEFT|AV_CH_STEREO_RIGHT)
#define AV_CH_LAYOUT_22POINT2 (AV_CH_LAYOUT_7POINT1POINT4_BACK|AV_CH_FRONT_LEFT_OF_CENTER|AV_CH_FRONT_RIGHT_OF_CENTER|AV_CH_BACK_CENTER|AV_CH_LOW_FREQUENCY_2|AV_CH_TOP_FRONT_CENTER|AV_CH_TOP_CENTER|AV_CH_TOP_SIDE_LEFT|AV_CH_TOP_SIDE_RIGHT|AV_CH_TOP_BACK_CENTER|AV_CH_BOTTOM_FRONT_CENTER|AV_CH_BOTTOM_FRONT_LEFT|AV_CH_BOTTOM_FRONT_RIGHT)
#define AV_CH_LAYOUT_7POINT1_TOP_BACK AV_CH_LAYOUT_5POINT1POINT2_BACK
enum AVMatrixEncoding {
AV_MATRIX_ENCODING_NONE,
AV_MATRIX_ENCODING_DOLBY,
AV_MATRIX_ENCODING_DPLII,
AV_MATRIX_ENCODING_DPLIIX,
AV_MATRIX_ENCODING_DPLIIZ,
AV_MATRIX_ENCODING_DOLBYEX,
AV_MATRIX_ENCODING_DOLBYHEADPHONE,
AV_MATRIX_ENCODING_NB
};
/**
* @}
*/
/**
* An AVChannelCustom defines a single channel within a custom order layout
*
* Unlike most structures in FFmpeg, sizeof(AVChannelCustom) is a part of the
* public ABI.
*
* No new fields may be added to it without a major version bump.
*/
typedef struct AVChannelCustom {
enum AVChannel id;
char name[16];
void *opaque;
} AVChannelCustom;
/**
* An AVChannelLayout holds information about the channel layout of audio data.
*
* A channel layout here is defined as a set of channels ordered in a specific
* way (unless the channel order is AV_CHANNEL_ORDER_UNSPEC, in which case an
* AVChannelLayout carries only the channel count).
* All orders may be treated as if they were AV_CHANNEL_ORDER_UNSPEC by
* ignoring everything but the channel count, as long as av_channel_layout_check()
* considers they are valid.
*
* Unlike most structures in FFmpeg, sizeof(AVChannelLayout) is a part of the
* public ABI and may be used by the caller. E.g. it may be allocated on stack
* or embedded in caller-defined structs.
*
* AVChannelLayout can be initialized as follows:
* - default initialization with {0}, followed by setting all used fields
* correctly;
* - by assigning one of the predefined AV_CHANNEL_LAYOUT_* initializers;
* - with a constructor function, such as av_channel_layout_default(),
* av_channel_layout_from_mask() or av_channel_layout_from_string().
*
* The channel layout must be unitialized with av_channel_layout_uninit()
*
* Copying an AVChannelLayout via assigning is forbidden,
* av_channel_layout_copy() must be used instead (and its return value should
* be checked)
*
* No new fields may be added to it without a major version bump, except for
* new elements of the union fitting in sizeof(uint64_t).
*/
typedef struct AVChannelLayout {
/**
* Channel order used in this layout.
* This is a mandatory field.
*/
enum AVChannelOrder order;
/**
* Number of channels in this layout. Mandatory field.
*/
int nb_channels;
/**
* Details about which channels are present in this layout.
* For AV_CHANNEL_ORDER_UNSPEC, this field is undefined and must not be
* used.
*/
union {
/**
* This member must be used for AV_CHANNEL_ORDER_NATIVE, and may be used
* for AV_CHANNEL_ORDER_AMBISONIC to signal non-diegetic channels.
* It is a bitmask, where the position of each set bit means that the
* AVChannel with the corresponding value is present.
*
* I.e. when (mask & (1 << AV_CHAN_FOO)) is non-zero, then AV_CHAN_FOO
* is present in the layout. Otherwise it is not present.
*
* @note when a channel layout using a bitmask is constructed or
* modified manually (i.e. not using any of the av_channel_layout_*
* functions), the code doing it must ensure that the number of set bits
* is equal to nb_channels.
*/
uint64_t mask;
/**
* This member must be used when the channel order is
* AV_CHANNEL_ORDER_CUSTOM. It is a nb_channels-sized array, with each
* element signalling the presence of the AVChannel with the
* corresponding value in map[i].id.
*
* I.e. when map[i].id is equal to AV_CHAN_FOO, then AV_CH_FOO is the
* i-th channel in the audio data.
*
* When map[i].id is in the range between AV_CHAN_AMBISONIC_BASE and
* AV_CHAN_AMBISONIC_END (inclusive), the channel contains an ambisonic
* component with ACN index (as defined above)
* n = map[i].id - AV_CHAN_AMBISONIC_BASE.
*
* map[i].name may be filled with a 0-terminated string, in which case
* it will be used for the purpose of identifying the channel with the
* convenience functions below. Otherise it must be zeroed.
*/
AVChannelCustom *map;
} u;
/**
* For some private data of the user.
*/
void *opaque;
} AVChannelLayout;
/**
* Macro to define native channel layouts
*
* @note This doesn't use designated initializers for compatibility with C++ 17 and older.
*/
#define AV_CHANNEL_LAYOUT_MASK(nb, m) \
{ /* .order */ AV_CHANNEL_ORDER_NATIVE, \
/* .nb_channels */ (nb), \
/* .u.mask */ { m }, \
/* .opaque */ NULL }
/**
* @name Common pre-defined channel layouts
* @{
*/
#define AV_CHANNEL_LAYOUT_MONO AV_CHANNEL_LAYOUT_MASK(1, AV_CH_LAYOUT_MONO)
#define AV_CHANNEL_LAYOUT_STEREO AV_CHANNEL_LAYOUT_MASK(2, AV_CH_LAYOUT_STEREO)
#define AV_CHANNEL_LAYOUT_2POINT1 AV_CHANNEL_LAYOUT_MASK(3, AV_CH_LAYOUT_2POINT1)
#define AV_CHANNEL_LAYOUT_2_1 AV_CHANNEL_LAYOUT_MASK(3, AV_CH_LAYOUT_2_1)
#define AV_CHANNEL_LAYOUT_SURROUND AV_CHANNEL_LAYOUT_MASK(3, AV_CH_LAYOUT_SURROUND)
#define AV_CHANNEL_LAYOUT_3POINT1 AV_CHANNEL_LAYOUT_MASK(4, AV_CH_LAYOUT_3POINT1)
#define AV_CHANNEL_LAYOUT_4POINT0 AV_CHANNEL_LAYOUT_MASK(4, AV_CH_LAYOUT_4POINT0)
#define AV_CHANNEL_LAYOUT_4POINT1 AV_CHANNEL_LAYOUT_MASK(5, AV_CH_LAYOUT_4POINT1)
#define AV_CHANNEL_LAYOUT_2_2 AV_CHANNEL_LAYOUT_MASK(4, AV_CH_LAYOUT_2_2)
#define AV_CHANNEL_LAYOUT_QUAD AV_CHANNEL_LAYOUT_MASK(4, AV_CH_LAYOUT_QUAD)
#define AV_CHANNEL_LAYOUT_5POINT0 AV_CHANNEL_LAYOUT_MASK(5, AV_CH_LAYOUT_5POINT0)
#define AV_CHANNEL_LAYOUT_5POINT1 AV_CHANNEL_LAYOUT_MASK(6, AV_CH_LAYOUT_5POINT1)
#define AV_CHANNEL_LAYOUT_5POINT0_BACK AV_CHANNEL_LAYOUT_MASK(5, AV_CH_LAYOUT_5POINT0_BACK)
#define AV_CHANNEL_LAYOUT_5POINT1_BACK AV_CHANNEL_LAYOUT_MASK(6, AV_CH_LAYOUT_5POINT1_BACK)
#define AV_CHANNEL_LAYOUT_6POINT0 AV_CHANNEL_LAYOUT_MASK(6, AV_CH_LAYOUT_6POINT0)
#define AV_CHANNEL_LAYOUT_6POINT0_FRONT AV_CHANNEL_LAYOUT_MASK(6, AV_CH_LAYOUT_6POINT0_FRONT)
#define AV_CHANNEL_LAYOUT_3POINT1POINT2 AV_CHANNEL_LAYOUT_MASK(6, AV_CH_LAYOUT_3POINT1POINT2)
#define AV_CHANNEL_LAYOUT_HEXAGONAL AV_CHANNEL_LAYOUT_MASK(6, AV_CH_LAYOUT_HEXAGONAL)
#define AV_CHANNEL_LAYOUT_6POINT1 AV_CHANNEL_LAYOUT_MASK(7, AV_CH_LAYOUT_6POINT1)
#define AV_CHANNEL_LAYOUT_6POINT1_BACK AV_CHANNEL_LAYOUT_MASK(7, AV_CH_LAYOUT_6POINT1_BACK)
#define AV_CHANNEL_LAYOUT_6POINT1_FRONT AV_CHANNEL_LAYOUT_MASK(7, AV_CH_LAYOUT_6POINT1_FRONT)
#define AV_CHANNEL_LAYOUT_7POINT0 AV_CHANNEL_LAYOUT_MASK(7, AV_CH_LAYOUT_7POINT0)
#define AV_CHANNEL_LAYOUT_7POINT0_FRONT AV_CHANNEL_LAYOUT_MASK(7, AV_CH_LAYOUT_7POINT0_FRONT)
#define AV_CHANNEL_LAYOUT_7POINT1 AV_CHANNEL_LAYOUT_MASK(8, AV_CH_LAYOUT_7POINT1)
#define AV_CHANNEL_LAYOUT_7POINT1_WIDE AV_CHANNEL_LAYOUT_MASK(8, AV_CH_LAYOUT_7POINT1_WIDE)
#define AV_CHANNEL_LAYOUT_7POINT1_WIDE_BACK AV_CHANNEL_LAYOUT_MASK(8, AV_CH_LAYOUT_7POINT1_WIDE_BACK)
#define AV_CHANNEL_LAYOUT_5POINT1POINT2_BACK AV_CHANNEL_LAYOUT_MASK(8, AV_CH_LAYOUT_5POINT1POINT2_BACK)
#define AV_CHANNEL_LAYOUT_OCTAGONAL AV_CHANNEL_LAYOUT_MASK(8, AV_CH_LAYOUT_OCTAGONAL)
#define AV_CHANNEL_LAYOUT_CUBE AV_CHANNEL_LAYOUT_MASK(8, AV_CH_LAYOUT_CUBE)
#define AV_CHANNEL_LAYOUT_5POINT1POINT4_BACK AV_CHANNEL_LAYOUT_MASK(10, AV_CH_LAYOUT_5POINT1POINT4_BACK)
#define AV_CHANNEL_LAYOUT_7POINT1POINT2 AV_CHANNEL_LAYOUT_MASK(10, AV_CH_LAYOUT_7POINT1POINT2)
#define AV_CHANNEL_LAYOUT_7POINT1POINT4_BACK AV_CHANNEL_LAYOUT_MASK(12, AV_CH_LAYOUT_7POINT1POINT4_BACK)
#define AV_CHANNEL_LAYOUT_HEXADECAGONAL AV_CHANNEL_LAYOUT_MASK(16, AV_CH_LAYOUT_HEXADECAGONAL)
#define AV_CHANNEL_LAYOUT_STEREO_DOWNMIX AV_CHANNEL_LAYOUT_MASK(2, AV_CH_LAYOUT_STEREO_DOWNMIX)
#define AV_CHANNEL_LAYOUT_22POINT2 AV_CHANNEL_LAYOUT_MASK(24, AV_CH_LAYOUT_22POINT2)
#define AV_CHANNEL_LAYOUT_7POINT1_TOP_BACK AV_CHANNEL_LAYOUT_5POINT1POINT2_BACK
#define AV_CHANNEL_LAYOUT_AMBISONIC_FIRST_ORDER \
{ /* .order */ AV_CHANNEL_ORDER_AMBISONIC, \
/* .nb_channels */ 4, \
/* .u.mask */ { 0 }, \
/* .opaque */ NULL }
/** @} */
struct AVBPrint;
#if FF_API_OLD_CHANNEL_LAYOUT
/**
* @name Deprecated Functions
* @{
*/
/**
* Return a channel layout id that matches name, or 0 if no match is found.
*
* name can be one or several of the following notations,
* separated by '+' or '|':
* - the name of an usual channel layout (mono, stereo, 4.0, quad, 5.0,
* 5.0(side), 5.1, 5.1(side), 7.1, 7.1(wide), downmix);
* - the name of a single channel (FL, FR, FC, LFE, BL, BR, FLC, FRC, BC,
* SL, SR, TC, TFL, TFC, TFR, TBL, TBC, TBR, DL, DR);
* - a number of channels, in decimal, followed by 'c', yielding
* the default channel layout for that number of channels (@see
* av_get_default_channel_layout);
* - a channel layout mask, in hexadecimal starting with "0x" (see the
* AV_CH_* macros).
*
* Example: "stereo+FC" = "2c+FC" = "2c+1c" = "0x7"
*
* @deprecated use av_channel_layout_from_string()
*/
attribute_deprecated
uint64_t av_get_channel_layout(const char *name);
/**
* Return a channel layout and the number of channels based on the specified name.
*
* This function is similar to (@see av_get_channel_layout), but can also parse
* unknown channel layout specifications.
*
* @param[in] name channel layout specification string
* @param[out] channel_layout parsed channel layout (0 if unknown)
* @param[out] nb_channels number of channels
*
* @return 0 on success, AVERROR(EINVAL) if the parsing fails.
* @deprecated use av_channel_layout_from_string()
*/
attribute_deprecated
int av_get_extended_channel_layout(const char *name, uint64_t* channel_layout, int* nb_channels);
/**
* Return a description of a channel layout.
* If nb_channels is <= 0, it is guessed from the channel_layout.
*
* @param buf put here the string containing the channel layout
* @param buf_size size in bytes of the buffer
* @param nb_channels number of channels
* @param channel_layout channel layout bitset
* @deprecated use av_channel_layout_describe()
*/
attribute_deprecated
void av_get_channel_layout_string(char *buf, int buf_size, int nb_channels, uint64_t channel_layout);
/**
* Append a description of a channel layout to a bprint buffer.
* @deprecated use av_channel_layout_describe()
*/
attribute_deprecated
void av_bprint_channel_layout(struct AVBPrint *bp, int nb_channels, uint64_t channel_layout);
/**
* Return the number of channels in the channel layout.
* @deprecated use AVChannelLayout.nb_channels
*/
attribute_deprecated
int av_get_channel_layout_nb_channels(uint64_t channel_layout);
/**
* Return default channel layout for a given number of channels.
*
* @deprecated use av_channel_layout_default()
*/
attribute_deprecated
int64_t av_get_default_channel_layout(int nb_channels);
/**
* Get the index of a channel in channel_layout.
*
* @param channel_layout channel layout bitset
* @param channel a channel layout describing exactly one channel which must be
* present in channel_layout.
*
* @return index of channel in channel_layout on success, a negative AVERROR
* on error.
*
* @deprecated use av_channel_layout_index_from_channel()
*/
attribute_deprecated
int av_get_channel_layout_channel_index(uint64_t channel_layout,
uint64_t channel);
/**
* Get the channel with the given index in channel_layout.
* @deprecated use av_channel_layout_channel_from_index()
*/
attribute_deprecated
uint64_t av_channel_layout_extract_channel(uint64_t channel_layout, int index);
/**
* Get the name of a given channel.
*
* @return channel name on success, NULL on error.
*
* @deprecated use av_channel_name()
*/
attribute_deprecated
const char *av_get_channel_name(uint64_t channel);
/**
* Get the description of a given channel.
*
* @param channel a channel layout with a single channel
* @return channel description on success, NULL on error
* @deprecated use av_channel_description()
*/
attribute_deprecated
const char *av_get_channel_description(uint64_t channel);
/**
* Get the value and name of a standard channel layout.
*
* @param[in] index index in an internal list, starting at 0
* @param[out] layout channel layout mask
* @param[out] name name of the layout
* @return 0 if the layout exists,
* <0 if index is beyond the limits
* @deprecated use av_channel_layout_standard()
*/
attribute_deprecated
int av_get_standard_channel_layout(unsigned index, uint64_t *layout,
const char **name);
/**
* @}
*/
#endif
/**
* Get a human readable string in an abbreviated form describing a given channel.
* This is the inverse function of @ref av_channel_from_string().
*
* @param buf pre-allocated buffer where to put the generated string
* @param buf_size size in bytes of the buffer.
* @param channel the AVChannel whose name to get
* @return amount of bytes needed to hold the output string, or a negative AVERROR
* on failure. If the returned value is bigger than buf_size, then the
* string was truncated.
*/
int av_channel_name(char *buf, size_t buf_size, enum AVChannel channel);
/**
* bprint variant of av_channel_name().
*
* @note the string will be appended to the bprint buffer.
*/
void av_channel_name_bprint(struct AVBPrint *bp, enum AVChannel channel_id);
/**
* Get a human readable string describing a given channel.
*
* @param buf pre-allocated buffer where to put the generated string
* @param buf_size size in bytes of the buffer.
* @param channel the AVChannel whose description to get
* @return amount of bytes needed to hold the output string, or a negative AVERROR
* on failure. If the returned value is bigger than buf_size, then the
* string was truncated.
*/
int av_channel_description(char *buf, size_t buf_size, enum AVChannel channel);
/**
* bprint variant of av_channel_description().
*
* @note the string will be appended to the bprint buffer.
*/
void av_channel_description_bprint(struct AVBPrint *bp, enum AVChannel channel_id);
/**
* This is the inverse function of @ref av_channel_name().
*
* @return the channel with the given name
* AV_CHAN_NONE when name does not identify a known channel
*/
enum AVChannel av_channel_from_string(const char *name);
/**
* Initialize a native channel layout from a bitmask indicating which channels
* are present.
*
* @param channel_layout the layout structure to be initialized
* @param mask bitmask describing the channel layout
*
* @return 0 on success
* AVERROR(EINVAL) for invalid mask values
*/
int av_channel_layout_from_mask(AVChannelLayout *channel_layout, uint64_t mask);
/**
* Initialize a channel layout from a given string description.
* The input string can be represented by:
* - the formal channel layout name (returned by av_channel_layout_describe())
* - single or multiple channel names (returned by av_channel_name(), eg. "FL",
* or concatenated with "+", each optionally containing a custom name after
* a "@", eg. "FL@Left+FR@Right+LFE")
* - a decimal or hexadecimal value of a native channel layout (eg. "4" or "0x4")
* - the number of channels with default layout (eg. "4c")
* - the number of unordered channels (eg. "4C" or "4 channels")
* - the ambisonic order followed by optional non-diegetic channels (eg.
* "ambisonic 2+stereo")
*
* @param channel_layout input channel layout
* @param str string describing the channel layout
* @return 0 channel layout was detected, AVERROR_INVALIDATATA otherwise
*/
int av_channel_layout_from_string(AVChannelLayout *channel_layout,
const char *str);
/**
* Get the default channel layout for a given number of channels.
*
* @param ch_layout the layout structure to be initialized
* @param nb_channels number of channels
*/
void av_channel_layout_default(AVChannelLayout *ch_layout, int nb_channels);
/**
* Iterate over all standard channel layouts.
*
* @param opaque a pointer where libavutil will store the iteration state. Must
* point to NULL to start the iteration.
*
* @return the standard channel layout or NULL when the iteration is
* finished
*/
const AVChannelLayout *av_channel_layout_standard(void **opaque);
/**
* Free any allocated data in the channel layout and reset the channel
* count to 0.
*
* @param channel_layout the layout structure to be uninitialized
*/
void av_channel_layout_uninit(AVChannelLayout *channel_layout);
/**
* Make a copy of a channel layout. This differs from just assigning src to dst
* in that it allocates and copies the map for AV_CHANNEL_ORDER_CUSTOM.
*
* @note the destination channel_layout will be always uninitialized before copy.
*
* @param dst destination channel layout
* @param src source channel layout
* @return 0 on success, a negative AVERROR on error.
*/
int av_channel_layout_copy(AVChannelLayout *dst, const AVChannelLayout *src);
/**
* Get a human-readable string describing the channel layout properties.
* The string will be in the same format that is accepted by
* @ref av_channel_layout_from_string(), allowing to rebuild the same
* channel layout, except for opaque pointers.
*
* @param channel_layout channel layout to be described
* @param buf pre-allocated buffer where to put the generated string
* @param buf_size size in bytes of the buffer.
* @return amount of bytes needed to hold the output string, or a negative AVERROR
* on failure. If the returned value is bigger than buf_size, then the
* string was truncated.
*/
int av_channel_layout_describe(const AVChannelLayout *channel_layout,
char *buf, size_t buf_size);
/**
* bprint variant of av_channel_layout_describe().
*
* @note the string will be appended to the bprint buffer.
* @return 0 on success, or a negative AVERROR value on failure.
*/
int av_channel_layout_describe_bprint(const AVChannelLayout *channel_layout,
struct AVBPrint *bp);
/**
* Get the channel with the given index in a channel layout.
*
* @param channel_layout input channel layout
* @param idx index of the channel
* @return channel with the index idx in channel_layout on success or
* AV_CHAN_NONE on failure (if idx is not valid or the channel order is
* unspecified)
*/
enum AVChannel
av_channel_layout_channel_from_index(const AVChannelLayout *channel_layout, unsigned int idx);
/**
* Get the index of a given channel in a channel layout. In case multiple
* channels are found, only the first match will be returned.
*
* @param channel_layout input channel layout
* @param channel the channel whose index to obtain
* @return index of channel in channel_layout on success or a negative number if
* channel is not present in channel_layout.
*/
int av_channel_layout_index_from_channel(const AVChannelLayout *channel_layout,
enum AVChannel channel);
/**
* Get the index in a channel layout of a channel described by the given string.
* In case multiple channels are found, only the first match will be returned.
*
* This function accepts channel names in the same format as
* @ref av_channel_from_string().
*
* @param channel_layout input channel layout
* @param name string describing the channel whose index to obtain
* @return a channel index described by the given string, or a negative AVERROR
* value.
*/
int av_channel_layout_index_from_string(const AVChannelLayout *channel_layout,
const char *name);
/**
* Get a channel described by the given string.
*
* This function accepts channel names in the same format as
* @ref av_channel_from_string().
*
* @param channel_layout input channel layout
* @param name string describing the channel to obtain
* @return a channel described by the given string in channel_layout on success
* or AV_CHAN_NONE on failure (if the string is not valid or the channel
* order is unspecified)
*/
enum AVChannel
av_channel_layout_channel_from_string(const AVChannelLayout *channel_layout,
const char *name);
/**
* Find out what channels from a given set are present in a channel layout,
* without regard for their positions.
*
* @param channel_layout input channel layout
* @param mask a combination of AV_CH_* representing a set of channels
* @return a bitfield representing all the channels from mask that are present
* in channel_layout
*/
uint64_t av_channel_layout_subset(const AVChannelLayout *channel_layout,
uint64_t mask);
/**
* Check whether a channel layout is valid, i.e. can possibly describe audio
* data.
*
* @param channel_layout input channel layout
* @return 1 if channel_layout is valid, 0 otherwise.
*/
int av_channel_layout_check(const AVChannelLayout *channel_layout);
/**
* Check whether two channel layouts are semantically the same, i.e. the same
* channels are present on the same positions in both.
*
* If one of the channel layouts is AV_CHANNEL_ORDER_UNSPEC, while the other is
* not, they are considered to be unequal. If both are AV_CHANNEL_ORDER_UNSPEC,
* they are considered equal iff the channel counts are the same in both.
*
* @param chl input channel layout
* @param chl1 input channel layout
* @return 0 if chl and chl1 are equal, 1 if they are not equal. A negative
* AVERROR code if one or both are invalid.
*/
int av_channel_layout_compare(const AVChannelLayout *chl, const AVChannelLayout *chl1);
/**
* @}
*/
#endif /* AVUTIL_CHANNEL_LAYOUT_H */

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/*
* copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file
* common internal and external API header
*/
#ifndef AVUTIL_COMMON_H
#define AVUTIL_COMMON_H
#if defined(__cplusplus) && !defined(__STDC_CONSTANT_MACROS) && !defined(UINT64_C)
#error missing -D__STDC_CONSTANT_MACROS / #define __STDC_CONSTANT_MACROS
#endif
#include <errno.h>
#include <inttypes.h>
#include <limits.h>
#include <math.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "attributes.h"
#include "error.h"
#include "macros.h"
//rounded division & shift
#define RSHIFT(a,b) ((a) > 0 ? ((a) + ((1<<(b))>>1))>>(b) : ((a) + ((1<<(b))>>1)-1)>>(b))
/* assume b>0 */
#define ROUNDED_DIV(a,b) (((a)>=0 ? (a) + ((b)>>1) : (a) - ((b)>>1))/(b))
/* Fast a/(1<<b) rounded toward +inf. Assume a>=0 and b>=0 */
#define AV_CEIL_RSHIFT(a,b) (!av_builtin_constant_p(b) ? -((-(a)) >> (b)) \
: ((a) + (1<<(b)) - 1) >> (b))
/* Backwards compat. */
#define FF_CEIL_RSHIFT AV_CEIL_RSHIFT
#define FFUDIV(a,b) (((a)>0 ?(a):(a)-(b)+1) / (b))
#define FFUMOD(a,b) ((a)-(b)*FFUDIV(a,b))
/**
* Absolute value, Note, INT_MIN / INT64_MIN result in undefined behavior as they
* are not representable as absolute values of their type. This is the same
* as with *abs()
* @see FFNABS()
*/
#define FFABS(a) ((a) >= 0 ? (a) : (-(a)))
#define FFSIGN(a) ((a) > 0 ? 1 : -1)
/**
* Negative Absolute value.
* this works for all integers of all types.
* As with many macros, this evaluates its argument twice, it thus must not have
* a sideeffect, that is FFNABS(x++) has undefined behavior.
*/
#define FFNABS(a) ((a) <= 0 ? (a) : (-(a)))
/**
* Unsigned Absolute value.
* This takes the absolute value of a signed int and returns it as a unsigned.
* This also works with INT_MIN which would otherwise not be representable
* As with many macros, this evaluates its argument twice.
*/
#define FFABSU(a) ((a) <= 0 ? -(unsigned)(a) : (unsigned)(a))
#define FFABS64U(a) ((a) <= 0 ? -(uint64_t)(a) : (uint64_t)(a))
/* misc math functions */
#ifdef HAVE_AV_CONFIG_H
# include "config.h"
# include "intmath.h"
#endif
#ifndef av_ceil_log2
# define av_ceil_log2 av_ceil_log2_c
#endif
#ifndef av_clip
# define av_clip av_clip_c
#endif
#ifndef av_clip64
# define av_clip64 av_clip64_c
#endif
#ifndef av_clip_uint8
# define av_clip_uint8 av_clip_uint8_c
#endif
#ifndef av_clip_int8
# define av_clip_int8 av_clip_int8_c
#endif
#ifndef av_clip_uint16
# define av_clip_uint16 av_clip_uint16_c
#endif
#ifndef av_clip_int16
# define av_clip_int16 av_clip_int16_c
#endif
#ifndef av_clipl_int32
# define av_clipl_int32 av_clipl_int32_c
#endif
#ifndef av_clip_intp2
# define av_clip_intp2 av_clip_intp2_c
#endif
#ifndef av_clip_uintp2
# define av_clip_uintp2 av_clip_uintp2_c
#endif
#ifndef av_mod_uintp2
# define av_mod_uintp2 av_mod_uintp2_c
#endif
#ifndef av_sat_add32
# define av_sat_add32 av_sat_add32_c
#endif
#ifndef av_sat_dadd32
# define av_sat_dadd32 av_sat_dadd32_c
#endif
#ifndef av_sat_sub32
# define av_sat_sub32 av_sat_sub32_c
#endif
#ifndef av_sat_dsub32
# define av_sat_dsub32 av_sat_dsub32_c
#endif
#ifndef av_sat_add64
# define av_sat_add64 av_sat_add64_c
#endif
#ifndef av_sat_sub64
# define av_sat_sub64 av_sat_sub64_c
#endif
#ifndef av_clipf
# define av_clipf av_clipf_c
#endif
#ifndef av_clipd
# define av_clipd av_clipd_c
#endif
#ifndef av_popcount
# define av_popcount av_popcount_c
#endif
#ifndef av_popcount64
# define av_popcount64 av_popcount64_c
#endif
#ifndef av_parity
# define av_parity av_parity_c
#endif
#ifndef av_log2
av_const int av_log2(unsigned v);
#endif
#ifndef av_log2_16bit
av_const int av_log2_16bit(unsigned v);
#endif
/**
* Clip a signed integer value into the amin-amax range.
* @param a value to clip
* @param amin minimum value of the clip range
* @param amax maximum value of the clip range
* @return clipped value
*/
static av_always_inline av_const int av_clip_c(int a, int amin, int amax)
{
#if defined(HAVE_AV_CONFIG_H) && defined(ASSERT_LEVEL) && ASSERT_LEVEL >= 2
if (amin > amax) abort();
#endif
if (a < amin) return amin;
else if (a > amax) return amax;
else return a;
}
/**
* Clip a signed 64bit integer value into the amin-amax range.
* @param a value to clip
* @param amin minimum value of the clip range
* @param amax maximum value of the clip range
* @return clipped value
*/
static av_always_inline av_const int64_t av_clip64_c(int64_t a, int64_t amin, int64_t amax)
{
#if defined(HAVE_AV_CONFIG_H) && defined(ASSERT_LEVEL) && ASSERT_LEVEL >= 2
if (amin > amax) abort();
#endif
if (a < amin) return amin;
else if (a > amax) return amax;
else return a;
}
/**
* Clip a signed integer value into the 0-255 range.
* @param a value to clip
* @return clipped value
*/
static av_always_inline av_const uint8_t av_clip_uint8_c(int a)
{
if (a&(~0xFF)) return (~a)>>31;
else return a;
}
/**
* Clip a signed integer value into the -128,127 range.
* @param a value to clip
* @return clipped value
*/
static av_always_inline av_const int8_t av_clip_int8_c(int a)
{
if ((a+0x80U) & ~0xFF) return (a>>31) ^ 0x7F;
else return a;
}
/**
* Clip a signed integer value into the 0-65535 range.
* @param a value to clip
* @return clipped value
*/
static av_always_inline av_const uint16_t av_clip_uint16_c(int a)
{
if (a&(~0xFFFF)) return (~a)>>31;
else return a;
}
/**
* Clip a signed integer value into the -32768,32767 range.
* @param a value to clip
* @return clipped value
*/
static av_always_inline av_const int16_t av_clip_int16_c(int a)
{
if ((a+0x8000U) & ~0xFFFF) return (a>>31) ^ 0x7FFF;
else return a;
}
/**
* Clip a signed 64-bit integer value into the -2147483648,2147483647 range.
* @param a value to clip
* @return clipped value
*/
static av_always_inline av_const int32_t av_clipl_int32_c(int64_t a)
{
if ((a+0x80000000u) & ~UINT64_C(0xFFFFFFFF)) return (int32_t)((a>>63) ^ 0x7FFFFFFF);
else return (int32_t)a;
}
/**
* Clip a signed integer into the -(2^p),(2^p-1) range.
* @param a value to clip
* @param p bit position to clip at
* @return clipped value
*/
static av_always_inline av_const int av_clip_intp2_c(int a, int p)
{
if (((unsigned)a + (1 << p)) & ~((2 << p) - 1))
return (a >> 31) ^ ((1 << p) - 1);
else
return a;
}
/**
* Clip a signed integer to an unsigned power of two range.
* @param a value to clip
* @param p bit position to clip at
* @return clipped value
*/
static av_always_inline av_const unsigned av_clip_uintp2_c(int a, int p)
{
if (a & ~((1<<p) - 1)) return (~a) >> 31 & ((1<<p) - 1);
else return a;
}
/**
* Clear high bits from an unsigned integer starting with specific bit position
* @param a value to clip
* @param p bit position to clip at
* @return clipped value
*/
static av_always_inline av_const unsigned av_mod_uintp2_c(unsigned a, unsigned p)
{
return a & ((1U << p) - 1);
}
/**
* Add two signed 32-bit values with saturation.
*
* @param a one value
* @param b another value
* @return sum with signed saturation
*/
static av_always_inline int av_sat_add32_c(int a, int b)
{
return av_clipl_int32((int64_t)a + b);
}
/**
* Add a doubled value to another value with saturation at both stages.
*
* @param a first value
* @param b value doubled and added to a
* @return sum sat(a + sat(2*b)) with signed saturation
*/
static av_always_inline int av_sat_dadd32_c(int a, int b)
{
return av_sat_add32(a, av_sat_add32(b, b));
}
/**
* Subtract two signed 32-bit values with saturation.
*
* @param a one value
* @param b another value
* @return difference with signed saturation
*/
static av_always_inline int av_sat_sub32_c(int a, int b)
{
return av_clipl_int32((int64_t)a - b);
}
/**
* Subtract a doubled value from another value with saturation at both stages.
*
* @param a first value
* @param b value doubled and subtracted from a
* @return difference sat(a - sat(2*b)) with signed saturation
*/
static av_always_inline int av_sat_dsub32_c(int a, int b)
{
return av_sat_sub32(a, av_sat_add32(b, b));
}
/**
* Add two signed 64-bit values with saturation.
*
* @param a one value
* @param b another value
* @return sum with signed saturation
*/
static av_always_inline int64_t av_sat_add64_c(int64_t a, int64_t b) {
#if (!defined(__INTEL_COMPILER) && AV_GCC_VERSION_AT_LEAST(5,1)) || AV_HAS_BUILTIN(__builtin_add_overflow)
int64_t tmp;
return !__builtin_add_overflow(a, b, &tmp) ? tmp : (tmp < 0 ? INT64_MAX : INT64_MIN);
#else
int64_t s = a+(uint64_t)b;
if ((int64_t)(a^b | ~s^b) >= 0)
return INT64_MAX ^ (b >> 63);
return s;
#endif
}
/**
* Subtract two signed 64-bit values with saturation.
*
* @param a one value
* @param b another value
* @return difference with signed saturation
*/
static av_always_inline int64_t av_sat_sub64_c(int64_t a, int64_t b) {
#if (!defined(__INTEL_COMPILER) && AV_GCC_VERSION_AT_LEAST(5,1)) || AV_HAS_BUILTIN(__builtin_sub_overflow)
int64_t tmp;
return !__builtin_sub_overflow(a, b, &tmp) ? tmp : (tmp < 0 ? INT64_MAX : INT64_MIN);
#else
if (b <= 0 && a >= INT64_MAX + b)
return INT64_MAX;
if (b >= 0 && a <= INT64_MIN + b)
return INT64_MIN;
return a - b;
#endif
}
/**
* Clip a float value into the amin-amax range.
* If a is nan or -inf amin will be returned.
* If a is +inf amax will be returned.
* @param a value to clip
* @param amin minimum value of the clip range
* @param amax maximum value of the clip range
* @return clipped value
*/
static av_always_inline av_const float av_clipf_c(float a, float amin, float amax)
{
#if defined(HAVE_AV_CONFIG_H) && defined(ASSERT_LEVEL) && ASSERT_LEVEL >= 2
if (amin > amax) abort();
#endif
return FFMIN(FFMAX(a, amin), amax);
}
/**
* Clip a double value into the amin-amax range.
* If a is nan or -inf amin will be returned.
* If a is +inf amax will be returned.
* @param a value to clip
* @param amin minimum value of the clip range
* @param amax maximum value of the clip range
* @return clipped value
*/
static av_always_inline av_const double av_clipd_c(double a, double amin, double amax)
{
#if defined(HAVE_AV_CONFIG_H) && defined(ASSERT_LEVEL) && ASSERT_LEVEL >= 2
if (amin > amax) abort();
#endif
return FFMIN(FFMAX(a, amin), amax);
}
/** Compute ceil(log2(x)).
* @param x value used to compute ceil(log2(x))
* @return computed ceiling of log2(x)
*/
static av_always_inline av_const int av_ceil_log2_c(int x)
{
return av_log2((x - 1U) << 1);
}
/**
* Count number of bits set to one in x
* @param x value to count bits of
* @return the number of bits set to one in x
*/
static av_always_inline av_const int av_popcount_c(uint32_t x)
{
x -= (x >> 1) & 0x55555555;
x = (x & 0x33333333) + ((x >> 2) & 0x33333333);
x = (x + (x >> 4)) & 0x0F0F0F0F;
x += x >> 8;
return (x + (x >> 16)) & 0x3F;
}
/**
* Count number of bits set to one in x
* @param x value to count bits of
* @return the number of bits set to one in x
*/
static av_always_inline av_const int av_popcount64_c(uint64_t x)
{
return av_popcount((uint32_t)x) + av_popcount((uint32_t)(x >> 32));
}
static av_always_inline av_const int av_parity_c(uint32_t v)
{
return av_popcount(v) & 1;
}
/**
* Convert a UTF-8 character (up to 4 bytes) to its 32-bit UCS-4 encoded form.
*
* @param val Output value, must be an lvalue of type uint32_t.
* @param GET_BYTE Expression reading one byte from the input.
* Evaluated up to 7 times (4 for the currently
* assigned Unicode range). With a memory buffer
* input, this could be *ptr++, or if you want to make sure
* that *ptr stops at the end of a NULL terminated string then
* *ptr ? *ptr++ : 0
* @param ERROR Expression to be evaluated on invalid input,
* typically a goto statement.
*
* @warning ERROR should not contain a loop control statement which
* could interact with the internal while loop, and should force an
* exit from the macro code (e.g. through a goto or a return) in order
* to prevent undefined results.
*/
#define GET_UTF8(val, GET_BYTE, ERROR)\
val= (uint8_t)(GET_BYTE);\
{\
uint32_t top = (val & 128) >> 1;\
if ((val & 0xc0) == 0x80 || val >= 0xFE)\
{ERROR}\
while (val & top) {\
unsigned int tmp = (uint8_t)(GET_BYTE) - 128;\
if(tmp>>6)\
{ERROR}\
val= (val<<6) + tmp;\
top <<= 5;\
}\
val &= (top << 1) - 1;\
}
/**
* Convert a UTF-16 character (2 or 4 bytes) to its 32-bit UCS-4 encoded form.
*
* @param val Output value, must be an lvalue of type uint32_t.
* @param GET_16BIT Expression returning two bytes of UTF-16 data converted
* to native byte order. Evaluated one or two times.
* @param ERROR Expression to be evaluated on invalid input,
* typically a goto statement.
*/
#define GET_UTF16(val, GET_16BIT, ERROR)\
val = (uint16_t)(GET_16BIT);\
{\
unsigned int hi = val - 0xD800;\
if (hi < 0x800) {\
val = (uint16_t)(GET_16BIT) - 0xDC00;\
if (val > 0x3FFU || hi > 0x3FFU)\
{ERROR}\
val += (hi<<10) + 0x10000;\
}\
}\
/**
* @def PUT_UTF8(val, tmp, PUT_BYTE)
* Convert a 32-bit Unicode character to its UTF-8 encoded form (up to 4 bytes long).
* @param val is an input-only argument and should be of type uint32_t. It holds
* a UCS-4 encoded Unicode character that is to be converted to UTF-8. If
* val is given as a function it is executed only once.
* @param tmp is a temporary variable and should be of type uint8_t. It
* represents an intermediate value during conversion that is to be
* output by PUT_BYTE.
* @param PUT_BYTE writes the converted UTF-8 bytes to any proper destination.
* It could be a function or a statement, and uses tmp as the input byte.
* For example, PUT_BYTE could be "*output++ = tmp;" PUT_BYTE will be
* executed up to 4 times for values in the valid UTF-8 range and up to
* 7 times in the general case, depending on the length of the converted
* Unicode character.
*/
#define PUT_UTF8(val, tmp, PUT_BYTE)\
{\
int bytes, shift;\
uint32_t in = val;\
if (in < 0x80) {\
tmp = in;\
PUT_BYTE\
} else {\
bytes = (av_log2(in) + 4) / 5;\
shift = (bytes - 1) * 6;\
tmp = (256 - (256 >> bytes)) | (in >> shift);\
PUT_BYTE\
while (shift >= 6) {\
shift -= 6;\
tmp = 0x80 | ((in >> shift) & 0x3f);\
PUT_BYTE\
}\
}\
}
/**
* @def PUT_UTF16(val, tmp, PUT_16BIT)
* Convert a 32-bit Unicode character to its UTF-16 encoded form (2 or 4 bytes).
* @param val is an input-only argument and should be of type uint32_t. It holds
* a UCS-4 encoded Unicode character that is to be converted to UTF-16. If
* val is given as a function it is executed only once.
* @param tmp is a temporary variable and should be of type uint16_t. It
* represents an intermediate value during conversion that is to be
* output by PUT_16BIT.
* @param PUT_16BIT writes the converted UTF-16 data to any proper destination
* in desired endianness. It could be a function or a statement, and uses tmp
* as the input byte. For example, PUT_BYTE could be "*output++ = tmp;"
* PUT_BYTE will be executed 1 or 2 times depending on input character.
*/
#define PUT_UTF16(val, tmp, PUT_16BIT)\
{\
uint32_t in = val;\
if (in < 0x10000) {\
tmp = in;\
PUT_16BIT\
} else {\
tmp = 0xD800 | ((in - 0x10000) >> 10);\
PUT_16BIT\
tmp = 0xDC00 | ((in - 0x10000) & 0x3FF);\
PUT_16BIT\
}\
}\
#include "mem.h"
#ifdef HAVE_AV_CONFIG_H
# include "internal.h"
#endif /* HAVE_AV_CONFIG_H */
#endif /* AVUTIL_COMMON_H */

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/*
* Copyright (c) 2000, 2001, 2002 Fabrice Bellard
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVUTIL_CPU_H
#define AVUTIL_CPU_H
#include <stddef.h>
#define AV_CPU_FLAG_FORCE 0x80000000 /* force usage of selected flags (OR) */
/* lower 16 bits - CPU features */
#define AV_CPU_FLAG_MMX 0x0001 ///< standard MMX
#define AV_CPU_FLAG_MMXEXT 0x0002 ///< SSE integer functions or AMD MMX ext
#define AV_CPU_FLAG_MMX2 0x0002 ///< SSE integer functions or AMD MMX ext
#define AV_CPU_FLAG_3DNOW 0x0004 ///< AMD 3DNOW
#define AV_CPU_FLAG_SSE 0x0008 ///< SSE functions
#define AV_CPU_FLAG_SSE2 0x0010 ///< PIV SSE2 functions
#define AV_CPU_FLAG_SSE2SLOW 0x40000000 ///< SSE2 supported, but usually not faster
///< than regular MMX/SSE (e.g. Core1)
#define AV_CPU_FLAG_3DNOWEXT 0x0020 ///< AMD 3DNowExt
#define AV_CPU_FLAG_SSE3 0x0040 ///< Prescott SSE3 functions
#define AV_CPU_FLAG_SSE3SLOW 0x20000000 ///< SSE3 supported, but usually not faster
///< than regular MMX/SSE (e.g. Core1)
#define AV_CPU_FLAG_SSSE3 0x0080 ///< Conroe SSSE3 functions
#define AV_CPU_FLAG_SSSE3SLOW 0x4000000 ///< SSSE3 supported, but usually not faster
#define AV_CPU_FLAG_ATOM 0x10000000 ///< Atom processor, some SSSE3 instructions are slower
#define AV_CPU_FLAG_SSE4 0x0100 ///< Penryn SSE4.1 functions
#define AV_CPU_FLAG_SSE42 0x0200 ///< Nehalem SSE4.2 functions
#define AV_CPU_FLAG_AESNI 0x80000 ///< Advanced Encryption Standard functions
#define AV_CPU_FLAG_AVX 0x4000 ///< AVX functions: requires OS support even if YMM registers aren't used
#define AV_CPU_FLAG_AVXSLOW 0x8000000 ///< AVX supported, but slow when using YMM registers (e.g. Bulldozer)
#define AV_CPU_FLAG_XOP 0x0400 ///< Bulldozer XOP functions
#define AV_CPU_FLAG_FMA4 0x0800 ///< Bulldozer FMA4 functions
#define AV_CPU_FLAG_CMOV 0x1000 ///< supports cmov instruction
#define AV_CPU_FLAG_AVX2 0x8000 ///< AVX2 functions: requires OS support even if YMM registers aren't used
#define AV_CPU_FLAG_FMA3 0x10000 ///< Haswell FMA3 functions
#define AV_CPU_FLAG_BMI1 0x20000 ///< Bit Manipulation Instruction Set 1
#define AV_CPU_FLAG_BMI2 0x40000 ///< Bit Manipulation Instruction Set 2
#define AV_CPU_FLAG_AVX512 0x100000 ///< AVX-512 functions: requires OS support even if YMM/ZMM registers aren't used
#define AV_CPU_FLAG_AVX512ICL 0x200000 ///< F/CD/BW/DQ/VL/VNNI/IFMA/VBMI/VBMI2/VPOPCNTDQ/BITALG/GFNI/VAES/VPCLMULQDQ
#define AV_CPU_FLAG_SLOW_GATHER 0x2000000 ///< CPU has slow gathers.
#define AV_CPU_FLAG_ALTIVEC 0x0001 ///< standard
#define AV_CPU_FLAG_VSX 0x0002 ///< ISA 2.06
#define AV_CPU_FLAG_POWER8 0x0004 ///< ISA 2.07
#define AV_CPU_FLAG_ARMV5TE (1 << 0)
#define AV_CPU_FLAG_ARMV6 (1 << 1)
#define AV_CPU_FLAG_ARMV6T2 (1 << 2)
#define AV_CPU_FLAG_VFP (1 << 3)
#define AV_CPU_FLAG_VFPV3 (1 << 4)
#define AV_CPU_FLAG_NEON (1 << 5)
#define AV_CPU_FLAG_ARMV8 (1 << 6)
#define AV_CPU_FLAG_VFP_VM (1 << 7) ///< VFPv2 vector mode, deprecated in ARMv7-A and unavailable in various CPUs implementations
#define AV_CPU_FLAG_DOTPROD (1 << 8)
#define AV_CPU_FLAG_I8MM (1 << 9)
#define AV_CPU_FLAG_SETEND (1 <<16)
#define AV_CPU_FLAG_MMI (1 << 0)
#define AV_CPU_FLAG_MSA (1 << 1)
//Loongarch SIMD extension.
#define AV_CPU_FLAG_LSX (1 << 0)
#define AV_CPU_FLAG_LASX (1 << 1)
// RISC-V extensions
#define AV_CPU_FLAG_RVI (1 << 0) ///< I (full GPR bank)
#define AV_CPU_FLAG_RVF (1 << 1) ///< F (single precision FP)
#define AV_CPU_FLAG_RVD (1 << 2) ///< D (double precision FP)
#define AV_CPU_FLAG_RVV_I32 (1 << 3) ///< Vectors of 8/16/32-bit int's */
#define AV_CPU_FLAG_RVV_F32 (1 << 4) ///< Vectors of float's */
#define AV_CPU_FLAG_RVV_I64 (1 << 5) ///< Vectors of 64-bit int's */
#define AV_CPU_FLAG_RVV_F64 (1 << 6) ///< Vectors of double's
#define AV_CPU_FLAG_RVB_BASIC (1 << 7) ///< Basic bit-manipulations
#define AV_CPU_FLAG_RVB_ADDR (1 << 8) ///< Address bit-manipulations
/**
* Return the flags which specify extensions supported by the CPU.
* The returned value is affected by av_force_cpu_flags() if that was used
* before. So av_get_cpu_flags() can easily be used in an application to
* detect the enabled cpu flags.
*/
int av_get_cpu_flags(void);
/**
* Disables cpu detection and forces the specified flags.
* -1 is a special case that disables forcing of specific flags.
*/
void av_force_cpu_flags(int flags);
/**
* Parse CPU caps from a string and update the given AV_CPU_* flags based on that.
*
* @return negative on error.
*/
int av_parse_cpu_caps(unsigned *flags, const char *s);
/**
* @return the number of logical CPU cores present.
*/
int av_cpu_count(void);
/**
* Overrides cpu count detection and forces the specified count.
* Count < 1 disables forcing of specific count.
*/
void av_cpu_force_count(int count);
/**
* Get the maximum data alignment that may be required by FFmpeg.
*
* Note that this is affected by the build configuration and the CPU flags mask,
* so e.g. if the CPU supports AVX, but libavutil has been built with
* --disable-avx or the AV_CPU_FLAG_AVX flag has been disabled through
* av_set_cpu_flags_mask(), then this function will behave as if AVX is not
* present.
*/
size_t av_cpu_max_align(void);
#endif /* AVUTIL_CPU_H */

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/*
* copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file
* @ingroup lavu_crc32
* Public header for CRC hash function implementation.
*/
#ifndef AVUTIL_CRC_H
#define AVUTIL_CRC_H
#include <stdint.h>
#include <stddef.h>
#include "attributes.h"
/**
* @defgroup lavu_crc32 CRC
* @ingroup lavu_hash
* CRC (Cyclic Redundancy Check) hash function implementation.
*
* This module supports numerous CRC polynomials, in addition to the most
* widely used CRC-32-IEEE. See @ref AVCRCId for a list of available
* polynomials.
*
* @{
*/
typedef uint32_t AVCRC;
typedef enum {
AV_CRC_8_ATM,
AV_CRC_16_ANSI,
AV_CRC_16_CCITT,
AV_CRC_32_IEEE,
AV_CRC_32_IEEE_LE, /*< reversed bitorder version of AV_CRC_32_IEEE */
AV_CRC_16_ANSI_LE, /*< reversed bitorder version of AV_CRC_16_ANSI */
AV_CRC_24_IEEE,
AV_CRC_8_EBU,
AV_CRC_MAX, /*< Not part of public API! Do not use outside libavutil. */
}AVCRCId;
/**
* Initialize a CRC table.
* @param ctx must be an array of size sizeof(AVCRC)*257 or sizeof(AVCRC)*1024
* @param le If 1, the lowest bit represents the coefficient for the highest
* exponent of the corresponding polynomial (both for poly and
* actual CRC).
* If 0, you must swap the CRC parameter and the result of av_crc
* if you need the standard representation (can be simplified in
* most cases to e.g. bswap16):
* av_bswap32(crc << (32-bits))
* @param bits number of bits for the CRC
* @param poly generator polynomial without the x**bits coefficient, in the
* representation as specified by le
* @param ctx_size size of ctx in bytes
* @return <0 on failure
*/
int av_crc_init(AVCRC *ctx, int le, int bits, uint32_t poly, int ctx_size);
/**
* Get an initialized standard CRC table.
* @param crc_id ID of a standard CRC
* @return a pointer to the CRC table or NULL on failure
*/
const AVCRC *av_crc_get_table(AVCRCId crc_id);
/**
* Calculate the CRC of a block.
* @param ctx initialized AVCRC array (see av_crc_init())
* @param crc CRC of previous blocks if any or initial value for CRC
* @param buffer buffer whose CRC to calculate
* @param length length of the buffer
* @return CRC updated with the data from the given block
*
* @see av_crc_init() "le" parameter
*/
uint32_t av_crc(const AVCRC *ctx, uint32_t crc,
const uint8_t *buffer, size_t length) av_pure;
/**
* @}
*/
#endif /* AVUTIL_CRC_H */

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/*
* Copyright (c) 2015 Kevin Wheatley <kevin.j.wheatley@gmail.com>
* Copyright (c) 2016 Ronald S. Bultje <rsbultje@gmail.com>
* Copyright (c) 2023 Leo Izen <leo.izen@gmail.com>
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVUTIL_CSP_H
#define AVUTIL_CSP_H
#include "pixfmt.h"
#include "rational.h"
/**
* @file
* Colorspace value utility functions for libavutil.
* @ingroup lavu_math_csp
* @author Ronald S. Bultje <rsbultje@gmail.com>
* @author Leo Izen <leo.izen@gmail.com>
* @author Kevin Wheatley <kevin.j.wheatley@gmail.com>
*/
/**
* @defgroup lavu_math_csp Colorspace Utility
* @ingroup lavu_math
* @{
*/
/**
* Struct containing luma coefficients to be used for RGB to YUV/YCoCg, or similar
* calculations.
*/
typedef struct AVLumaCoefficients {
AVRational cr, cg, cb;
} AVLumaCoefficients;
/**
* Struct containing chromaticity x and y values for the standard CIE 1931
* chromaticity definition.
*/
typedef struct AVCIExy {
AVRational x, y;
} AVCIExy;
/**
* Struct defining the red, green, and blue primary locations in terms of CIE
* 1931 chromaticity x and y.
*/
typedef struct AVPrimaryCoefficients {
AVCIExy r, g, b;
} AVPrimaryCoefficients;
/**
* Struct defining white point location in terms of CIE 1931 chromaticity x
* and y.
*/
typedef AVCIExy AVWhitepointCoefficients;
/**
* Struct that contains both white point location and primaries location, providing
* the complete description of a color gamut.
*/
typedef struct AVColorPrimariesDesc {
AVWhitepointCoefficients wp;
AVPrimaryCoefficients prim;
} AVColorPrimariesDesc;
/**
* Function pointer representing a double -> double transfer function that performs
* an EOTF transfer inversion. This function outputs linear light.
*/
typedef double (*av_csp_trc_function)(double);
/**
* Retrieves the Luma coefficients necessary to construct a conversion matrix
* from an enum constant describing the colorspace.
* @param csp An enum constant indicating YUV or similar colorspace.
* @return The Luma coefficients associated with that colorspace, or NULL
* if the constant is unknown to libavutil.
*/
const AVLumaCoefficients *av_csp_luma_coeffs_from_avcsp(enum AVColorSpace csp);
/**
* Retrieves a complete gamut description from an enum constant describing the
* color primaries.
* @param prm An enum constant indicating primaries
* @return A description of the colorspace gamut associated with that enum
* constant, or NULL if the constant is unknown to libavutil.
*/
const AVColorPrimariesDesc *av_csp_primaries_desc_from_id(enum AVColorPrimaries prm);
/**
* Detects which enum AVColorPrimaries constant corresponds to the given complete
* gamut description.
* @see enum AVColorPrimaries
* @param prm A description of the colorspace gamut
* @return The enum constant associated with this gamut, or
* AVCOL_PRI_UNSPECIFIED if no clear match can be idenitified.
*/
enum AVColorPrimaries av_csp_primaries_id_from_desc(const AVColorPrimariesDesc *prm);
/**
* Determine a suitable 'gamma' value to match the supplied
* AVColorTransferCharacteristic.
*
* See Apple Technical Note TN2257 (https://developer.apple.com/library/mac/technotes/tn2257/_index.html)
*
* This function returns the gamma exponent for the OETF. For example, sRGB is approximated
* by gamma 2.2, not by gamma 0.45455.
*
* @return Will return an approximation to the simple gamma function matching
* the supplied Transfer Characteristic, Will return 0.0 for any
* we cannot reasonably match against.
*/
double av_csp_approximate_trc_gamma(enum AVColorTransferCharacteristic trc);
/**
* Determine the function needed to apply the given
* AVColorTransferCharacteristic to linear input.
*
* The function returned should expect a nominal domain and range of [0.0-1.0]
* values outside of this range maybe valid depending on the chosen
* characteristic function.
*
* @return Will return pointer to the function matching the
* supplied Transfer Characteristic. If unspecified will
* return NULL:
*/
av_csp_trc_function av_csp_trc_func_from_id(enum AVColorTransferCharacteristic trc);
/**
* @}
*/
#endif /* AVUTIL_CSP_H */

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/*
* DES encryption/decryption
* Copyright (c) 2007 Reimar Doeffinger
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVUTIL_DES_H
#define AVUTIL_DES_H
#include <stdint.h>
/**
* @defgroup lavu_des DES
* @ingroup lavu_crypto
* @{
*/
typedef struct AVDES {
uint64_t round_keys[3][16];
int triple_des;
} AVDES;
/**
* Allocate an AVDES context.
*/
AVDES *av_des_alloc(void);
/**
* @brief Initializes an AVDES context.
*
* @param d pointer to a AVDES structure to initialize
* @param key pointer to the key to use
* @param key_bits must be 64 or 192
* @param decrypt 0 for encryption/CBC-MAC, 1 for decryption
* @return zero on success, negative value otherwise
*/
int av_des_init(struct AVDES *d, const uint8_t *key, int key_bits, int decrypt);
/**
* @brief Encrypts / decrypts using the DES algorithm.
*
* @param d pointer to the AVDES structure
* @param dst destination array, can be equal to src, must be 8-byte aligned
* @param src source array, can be equal to dst, must be 8-byte aligned, may be NULL
* @param count number of 8 byte blocks
* @param iv initialization vector for CBC mode, if NULL then ECB will be used,
* must be 8-byte aligned
* @param decrypt 0 for encryption, 1 for decryption
*/
void av_des_crypt(struct AVDES *d, uint8_t *dst, const uint8_t *src, int count, uint8_t *iv, int decrypt);
/**
* @brief Calculates CBC-MAC using the DES algorithm.
*
* @param d pointer to the AVDES structure
* @param dst destination array, can be equal to src, must be 8-byte aligned
* @param src source array, can be equal to dst, must be 8-byte aligned, may be NULL
* @param count number of 8 byte blocks
*/
void av_des_mac(struct AVDES *d, uint8_t *dst, const uint8_t *src, int count);
/**
* @}
*/
#endif /* AVUTIL_DES_H */

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/*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVUTIL_DETECTION_BBOX_H
#define AVUTIL_DETECTION_BBOX_H
#include "rational.h"
#include "avassert.h"
#include "frame.h"
typedef struct AVDetectionBBox {
/**
* Distance in pixels from the left/top edge of the frame,
* together with width and height, defining the bounding box.
*/
int x;
int y;
int w;
int h;
#define AV_DETECTION_BBOX_LABEL_NAME_MAX_SIZE 64
/**
* Detect result with confidence
*/
char detect_label[AV_DETECTION_BBOX_LABEL_NAME_MAX_SIZE];
AVRational detect_confidence;
/**
* At most 4 classifications based on the detected bounding box.
* For example, we can get max 4 different attributes with 4 different
* DNN models on one bounding box.
* classify_count is zero if no classification.
*/
#define AV_NUM_DETECTION_BBOX_CLASSIFY 4
uint32_t classify_count;
char classify_labels[AV_NUM_DETECTION_BBOX_CLASSIFY][AV_DETECTION_BBOX_LABEL_NAME_MAX_SIZE];
AVRational classify_confidences[AV_NUM_DETECTION_BBOX_CLASSIFY];
} AVDetectionBBox;
typedef struct AVDetectionBBoxHeader {
/**
* Information about how the bounding box is generated.
* for example, the DNN model name.
*/
char source[256];
/**
* Number of bounding boxes in the array.
*/
uint32_t nb_bboxes;
/**
* Offset in bytes from the beginning of this structure at which
* the array of bounding boxes starts.
*/
size_t bboxes_offset;
/**
* Size of each bounding box in bytes.
*/
size_t bbox_size;
} AVDetectionBBoxHeader;
/*
* Get the bounding box at the specified {@code idx}. Must be between 0 and nb_bboxes.
*/
static av_always_inline AVDetectionBBox *
av_get_detection_bbox(const AVDetectionBBoxHeader *header, unsigned int idx)
{
av_assert0(idx < header->nb_bboxes);
return (AVDetectionBBox *)((uint8_t *)header + header->bboxes_offset +
idx * header->bbox_size);
}
/**
* Allocates memory for AVDetectionBBoxHeader, plus an array of {@code nb_bboxes}
* AVDetectionBBox, and initializes the variables.
* Can be freed with a normal av_free() call.
*
* @param nb_bboxes number of AVDetectionBBox structures to allocate
* @param out_size if non-NULL, the size in bytes of the resulting data array is
* written here.
*/
AVDetectionBBoxHeader *av_detection_bbox_alloc(uint32_t nb_bboxes, size_t *out_size);
/**
* Allocates memory for AVDetectionBBoxHeader, plus an array of {@code nb_bboxes}
* AVDetectionBBox, in the given AVFrame {@code frame} as AVFrameSideData of type
* AV_FRAME_DATA_DETECTION_BBOXES and initializes the variables.
*/
AVDetectionBBoxHeader *av_detection_bbox_create_side_data(AVFrame *frame, uint32_t nb_bboxes);
#endif

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/*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file
* Public dictionary API.
* @deprecated
* AVDictionary is provided for compatibility with libav. It is both in
* implementation as well as API inefficient. It does not scale and is
* extremely slow with large dictionaries.
* It is recommended that new code uses our tree container from tree.c/h
* where applicable, which uses AVL trees to achieve O(log n) performance.
*/
#ifndef AVUTIL_DICT_H
#define AVUTIL_DICT_H
#include <stdint.h>
/**
* @addtogroup lavu_dict AVDictionary
* @ingroup lavu_data
*
* @brief Simple key:value store
*
* @{
* Dictionaries are used for storing key-value pairs.
*
* - To **create an AVDictionary**, simply pass an address of a NULL
* pointer to av_dict_set(). NULL can be used as an empty dictionary
* wherever a pointer to an AVDictionary is required.
* - To **insert an entry**, use av_dict_set().
* - Use av_dict_get() to **retrieve an entry**.
* - To **iterate over all entries**, use av_dict_iterate().
* - In order to **free the dictionary and all its contents**, use av_dict_free().
*
@code
AVDictionary *d = NULL; // "create" an empty dictionary
AVDictionaryEntry *t = NULL;
av_dict_set(&d, "foo", "bar", 0); // add an entry
char *k = av_strdup("key"); // if your strings are already allocated,
char *v = av_strdup("value"); // you can avoid copying them like this
av_dict_set(&d, k, v, AV_DICT_DONT_STRDUP_KEY | AV_DICT_DONT_STRDUP_VAL);
while ((t = av_dict_iterate(d, t))) {
<....> // iterate over all entries in d
}
av_dict_free(&d);
@endcode
*/
/**
* @name AVDictionary Flags
* Flags that influence behavior of the matching of keys or insertion to the dictionary.
* @{
*/
#define AV_DICT_MATCH_CASE 1 /**< Only get an entry with exact-case key match. Only relevant in av_dict_get(). */
#define AV_DICT_IGNORE_SUFFIX 2 /**< Return first entry in a dictionary whose first part corresponds to the search key,
ignoring the suffix of the found key string. Only relevant in av_dict_get(). */
#define AV_DICT_DONT_STRDUP_KEY 4 /**< Take ownership of a key that's been
allocated with av_malloc() or another memory allocation function. */
#define AV_DICT_DONT_STRDUP_VAL 8 /**< Take ownership of a value that's been
allocated with av_malloc() or another memory allocation function. */
#define AV_DICT_DONT_OVERWRITE 16 /**< Don't overwrite existing entries. */
#define AV_DICT_APPEND 32 /**< If the entry already exists, append to it. Note that no
delimiter is added, the strings are simply concatenated. */
#define AV_DICT_MULTIKEY 64 /**< Allow to store several equal keys in the dictionary */
/**
* @}
*/
typedef struct AVDictionaryEntry {
char *key;
char *value;
} AVDictionaryEntry;
typedef struct AVDictionary AVDictionary;
/**
* Get a dictionary entry with matching key.
*
* The returned entry key or value must not be changed, or it will
* cause undefined behavior.
*
* @param prev Set to the previous matching element to find the next.
* If set to NULL the first matching element is returned.
* @param key Matching key
* @param flags A collection of AV_DICT_* flags controlling how the
* entry is retrieved
*
* @return Found entry or NULL in case no matching entry was found in the dictionary
*/
AVDictionaryEntry *av_dict_get(const AVDictionary *m, const char *key,
const AVDictionaryEntry *prev, int flags);
/**
* Iterate over a dictionary
*
* Iterates through all entries in the dictionary.
*
* @warning The returned AVDictionaryEntry key/value must not be changed.
*
* @warning As av_dict_set() invalidates all previous entries returned
* by this function, it must not be called while iterating over the dict.
*
* Typical usage:
* @code
* const AVDictionaryEntry *e = NULL;
* while ((e = av_dict_iterate(m, e))) {
* // ...
* }
* @endcode
*
* @param m The dictionary to iterate over
* @param prev Pointer to the previous AVDictionaryEntry, NULL initially
*
* @retval AVDictionaryEntry* The next element in the dictionary
* @retval NULL No more elements in the dictionary
*/
const AVDictionaryEntry *av_dict_iterate(const AVDictionary *m,
const AVDictionaryEntry *prev);
/**
* Get number of entries in dictionary.
*
* @param m dictionary
* @return number of entries in dictionary
*/
int av_dict_count(const AVDictionary *m);
/**
* Set the given entry in *pm, overwriting an existing entry.
*
* Note: If AV_DICT_DONT_STRDUP_KEY or AV_DICT_DONT_STRDUP_VAL is set,
* these arguments will be freed on error.
*
* @warning Adding a new entry to a dictionary invalidates all existing entries
* previously returned with av_dict_get() or av_dict_iterate().
*
* @param pm Pointer to a pointer to a dictionary struct. If *pm is NULL
* a dictionary struct is allocated and put in *pm.
* @param key Entry key to add to *pm (will either be av_strduped or added as a new key depending on flags)
* @param value Entry value to add to *pm (will be av_strduped or added as a new key depending on flags).
* Passing a NULL value will cause an existing entry to be deleted.
*
* @return >= 0 on success otherwise an error code <0
*/
int av_dict_set(AVDictionary **pm, const char *key, const char *value, int flags);
/**
* Convenience wrapper for av_dict_set() that converts the value to a string
* and stores it.
*
* Note: If ::AV_DICT_DONT_STRDUP_KEY is set, key will be freed on error.
*/
int av_dict_set_int(AVDictionary **pm, const char *key, int64_t value, int flags);
/**
* Parse the key/value pairs list and add the parsed entries to a dictionary.
*
* In case of failure, all the successfully set entries are stored in
* *pm. You may need to manually free the created dictionary.
*
* @param key_val_sep A 0-terminated list of characters used to separate
* key from value
* @param pairs_sep A 0-terminated list of characters used to separate
* two pairs from each other
* @param flags Flags to use when adding to the dictionary.
* ::AV_DICT_DONT_STRDUP_KEY and ::AV_DICT_DONT_STRDUP_VAL
* are ignored since the key/value tokens will always
* be duplicated.
*
* @return 0 on success, negative AVERROR code on failure
*/
int av_dict_parse_string(AVDictionary **pm, const char *str,
const char *key_val_sep, const char *pairs_sep,
int flags);
/**
* Copy entries from one AVDictionary struct into another.
*
* @note Metadata is read using the ::AV_DICT_IGNORE_SUFFIX flag
*
* @param dst Pointer to a pointer to a AVDictionary struct to copy into. If *dst is NULL,
* this function will allocate a struct for you and put it in *dst
* @param src Pointer to the source AVDictionary struct to copy items from.
* @param flags Flags to use when setting entries in *dst
*
* @return 0 on success, negative AVERROR code on failure. If dst was allocated
* by this function, callers should free the associated memory.
*/
int av_dict_copy(AVDictionary **dst, const AVDictionary *src, int flags);
/**
* Free all the memory allocated for an AVDictionary struct
* and all keys and values.
*/
void av_dict_free(AVDictionary **m);
/**
* Get dictionary entries as a string.
*
* Create a string containing dictionary's entries.
* Such string may be passed back to av_dict_parse_string().
* @note String is escaped with backslashes ('\').
*
* @warning Separators cannot be neither '\\' nor '\0'. They also cannot be the same.
*
* @param[in] m The dictionary
* @param[out] buffer Pointer to buffer that will be allocated with string containg entries.
* Buffer must be freed by the caller when is no longer needed.
* @param[in] key_val_sep Character used to separate key from value
* @param[in] pairs_sep Character used to separate two pairs from each other
*
* @return >= 0 on success, negative on error
*/
int av_dict_get_string(const AVDictionary *m, char **buffer,
const char key_val_sep, const char pairs_sep);
/**
* @}
*/
#endif /* AVUTIL_DICT_H */

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/*
* Copyright (c) 2014 Vittorio Giovara <vittorio.giovara@gmail.com>
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file
* @ingroup lavu_video_display
* Display matrix
*/
#ifndef AVUTIL_DISPLAY_H
#define AVUTIL_DISPLAY_H
#include <stdint.h>
/**
* @defgroup lavu_video_display Display transformation matrix functions
* @ingroup lavu_video
*
* The display transformation matrix specifies an affine transformation that
* should be applied to video frames for correct presentation. It is compatible
* with the matrices stored in the ISO/IEC 14496-12 container format.
*
* The data is a 3x3 matrix represented as a 9-element array:
*
* @code{.unparsed}
* | a b u |
* (a, b, u, c, d, v, x, y, w) -> | c d v |
* | x y w |
* @endcode
*
* All numbers are stored in native endianness, as 16.16 fixed-point values,
* except for u, v and w, which are stored as 2.30 fixed-point values.
*
* The transformation maps a point (p, q) in the source (pre-transformation)
* frame to the point (p', q') in the destination (post-transformation) frame as
* follows:
*
* @code{.unparsed}
* | a b u |
* (p, q, 1) . | c d v | = z * (p', q', 1)
* | x y w |
* @endcode
*
* The transformation can also be more explicitly written in components as
* follows:
*
* @code{.unparsed}
* p' = (a * p + c * q + x) / z;
* q' = (b * p + d * q + y) / z;
* z = u * p + v * q + w
* @endcode
*
* @{
*/
/**
* Extract the rotation component of the transformation matrix.
*
* @param matrix the transformation matrix
* @return the angle (in degrees) by which the transformation rotates the frame
* counterclockwise. The angle will be in range [-180.0, 180.0],
* or NaN if the matrix is singular.
*
* @note floating point numbers are inherently inexact, so callers are
* recommended to round the return value to nearest integer before use.
*/
double av_display_rotation_get(const int32_t matrix[9]);
/**
* Initialize a transformation matrix describing a pure clockwise
* rotation by the specified angle (in degrees).
*
* @param[out] matrix a transformation matrix (will be fully overwritten
* by this function)
* @param angle rotation angle in degrees.
*/
void av_display_rotation_set(int32_t matrix[9], double angle);
/**
* Flip the input matrix horizontally and/or vertically.
*
* @param[in,out] matrix a transformation matrix
* @param hflip whether the matrix should be flipped horizontally
* @param vflip whether the matrix should be flipped vertically
*/
void av_display_matrix_flip(int32_t matrix[9], int hflip, int vflip);
/**
* @}
*/
#endif /* AVUTIL_DISPLAY_H */

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/*
* Copyright (c) 2020 Vacing Fang <vacingfang@tencent.com>
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/**
* @file
* DOVI configuration
*/
#ifndef AVUTIL_DOVI_META_H
#define AVUTIL_DOVI_META_H
#include <stdint.h>
#include <stddef.h>
#include "rational.h"
/*
* DOVI configuration
* ref: dolby-vision-bitstreams-within-the-iso-base-media-file-format-v2.1.2
dolby-vision-bitstreams-in-mpeg-2-transport-stream-multiplex-v1.2
* @code
* uint8_t dv_version_major, the major version number that the stream complies with
* uint8_t dv_version_minor, the minor version number that the stream complies with
* uint8_t dv_profile, the Dolby Vision profile
* uint8_t dv_level, the Dolby Vision level
* uint8_t rpu_present_flag
* uint8_t el_present_flag
* uint8_t bl_present_flag
* uint8_t dv_bl_signal_compatibility_id
* @endcode
*
* @note The struct must be allocated with av_dovi_alloc() and
* its size is not a part of the public ABI.
*/
typedef struct AVDOVIDecoderConfigurationRecord {
uint8_t dv_version_major;
uint8_t dv_version_minor;
uint8_t dv_profile;
uint8_t dv_level;
uint8_t rpu_present_flag;
uint8_t el_present_flag;
uint8_t bl_present_flag;
uint8_t dv_bl_signal_compatibility_id;
} AVDOVIDecoderConfigurationRecord;
/**
* Allocate a AVDOVIDecoderConfigurationRecord structure and initialize its
* fields to default values.
*
* @return the newly allocated struct or NULL on failure
*/
AVDOVIDecoderConfigurationRecord *av_dovi_alloc(size_t *size);
/**
* Dolby Vision RPU data header.
*
* @note sizeof(AVDOVIRpuDataHeader) is not part of the public ABI.
*/
typedef struct AVDOVIRpuDataHeader {
uint8_t rpu_type;
uint16_t rpu_format;
uint8_t vdr_rpu_profile;
uint8_t vdr_rpu_level;
uint8_t chroma_resampling_explicit_filter_flag;
uint8_t coef_data_type; /* informative, lavc always converts to fixed */
uint8_t coef_log2_denom;
uint8_t vdr_rpu_normalized_idc;
uint8_t bl_video_full_range_flag;
uint8_t bl_bit_depth; /* [8, 16] */
uint8_t el_bit_depth; /* [8, 16] */
uint8_t vdr_bit_depth; /* [8, 16] */
uint8_t spatial_resampling_filter_flag;
uint8_t el_spatial_resampling_filter_flag;
uint8_t disable_residual_flag;
} AVDOVIRpuDataHeader;
enum AVDOVIMappingMethod {
AV_DOVI_MAPPING_POLYNOMIAL = 0,
AV_DOVI_MAPPING_MMR = 1,
};
/**
* Coefficients of a piece-wise function. The pieces of the function span the
* value ranges between two adjacent pivot values.
*/
#define AV_DOVI_MAX_PIECES 8
typedef struct AVDOVIReshapingCurve {
uint8_t num_pivots; /* [2, 9] */
uint16_t pivots[AV_DOVI_MAX_PIECES + 1]; /* sorted ascending */
enum AVDOVIMappingMethod mapping_idc[AV_DOVI_MAX_PIECES];
/* AV_DOVI_MAPPING_POLYNOMIAL */
uint8_t poly_order[AV_DOVI_MAX_PIECES]; /* [1, 2] */
int64_t poly_coef[AV_DOVI_MAX_PIECES][3]; /* x^0, x^1, x^2 */
/* AV_DOVI_MAPPING_MMR */
uint8_t mmr_order[AV_DOVI_MAX_PIECES]; /* [1, 3] */
int64_t mmr_constant[AV_DOVI_MAX_PIECES];
int64_t mmr_coef[AV_DOVI_MAX_PIECES][3/* order - 1 */][7];
} AVDOVIReshapingCurve;
enum AVDOVINLQMethod {
AV_DOVI_NLQ_NONE = -1,
AV_DOVI_NLQ_LINEAR_DZ = 0,
};
/**
* Coefficients of the non-linear inverse quantization. For the interpretation
* of these, see ETSI GS CCM 001.
*/
typedef struct AVDOVINLQParams {
uint16_t nlq_offset;
uint64_t vdr_in_max;
/* AV_DOVI_NLQ_LINEAR_DZ */
uint64_t linear_deadzone_slope;
uint64_t linear_deadzone_threshold;
} AVDOVINLQParams;
/**
* Dolby Vision RPU data mapping parameters.
*
* @note sizeof(AVDOVIDataMapping) is not part of the public ABI.
*/
typedef struct AVDOVIDataMapping {
uint8_t vdr_rpu_id;
uint8_t mapping_color_space;
uint8_t mapping_chroma_format_idc;
AVDOVIReshapingCurve curves[3]; /* per component */
/* Non-linear inverse quantization */
enum AVDOVINLQMethod nlq_method_idc;
uint32_t num_x_partitions;
uint32_t num_y_partitions;
AVDOVINLQParams nlq[3]; /* per component */
} AVDOVIDataMapping;
/**
* Dolby Vision RPU colorspace metadata parameters.
*
* @note sizeof(AVDOVIColorMetadata) is not part of the public ABI.
*/
typedef struct AVDOVIColorMetadata {
uint8_t dm_metadata_id;
uint8_t scene_refresh_flag;
/**
* Coefficients of the custom Dolby Vision IPT-PQ matrices. These are to be
* used instead of the matrices indicated by the frame's colorspace tags.
* The output of rgb_to_lms_matrix is to be fed into a BT.2020 LMS->RGB
* matrix based on a Hunt-Pointer-Estevez transform, but without any
* crosstalk. (See the definition of the ICtCp colorspace for more
* information.)
*/
AVRational ycc_to_rgb_matrix[9]; /* before PQ linearization */
AVRational ycc_to_rgb_offset[3]; /* input offset of neutral value */
AVRational rgb_to_lms_matrix[9]; /* after PQ linearization */
/**
* Extra signal metadata (see Dolby patents for more info).
*/
uint16_t signal_eotf;
uint16_t signal_eotf_param0;
uint16_t signal_eotf_param1;
uint32_t signal_eotf_param2;
uint8_t signal_bit_depth;
uint8_t signal_color_space;
uint8_t signal_chroma_format;
uint8_t signal_full_range_flag; /* [0, 3] */
uint16_t source_min_pq;
uint16_t source_max_pq;
uint16_t source_diagonal;
} AVDOVIColorMetadata;
/**
* Combined struct representing a combination of header, mapping and color
* metadata, for attaching to frames as side data.
*
* @note The struct must be allocated with av_dovi_metadata_alloc() and
* its size is not a part of the public ABI.
*/
typedef struct AVDOVIMetadata {
/**
* Offset in bytes from the beginning of this structure at which the
* respective structs start.
*/
size_t header_offset; /* AVDOVIRpuDataHeader */
size_t mapping_offset; /* AVDOVIDataMapping */
size_t color_offset; /* AVDOVIColorMetadata */
} AVDOVIMetadata;
static av_always_inline AVDOVIRpuDataHeader *
av_dovi_get_header(const AVDOVIMetadata *data)
{
return (AVDOVIRpuDataHeader *)((uint8_t *) data + data->header_offset);
}
static av_always_inline AVDOVIDataMapping *
av_dovi_get_mapping(const AVDOVIMetadata *data)
{
return (AVDOVIDataMapping *)((uint8_t *) data + data->mapping_offset);
}
static av_always_inline AVDOVIColorMetadata *
av_dovi_get_color(const AVDOVIMetadata *data)
{
return (AVDOVIColorMetadata *)((uint8_t *) data + data->color_offset);
}
/**
* Allocate an AVDOVIMetadata structure and initialize its
* fields to default values.
*
* @param size If this parameter is non-NULL, the size in bytes of the
* allocated struct will be written here on success
*
* @return the newly allocated struct or NULL on failure
*/
AVDOVIMetadata *av_dovi_metadata_alloc(size_t *size);
#endif /* AVUTIL_DOVI_META_H */

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/*
* Copyright (c) 2014 Tim Walker <tdskywalker@gmail.com>
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVUTIL_DOWNMIX_INFO_H
#define AVUTIL_DOWNMIX_INFO_H
#include "frame.h"
/**
* @file
* audio downmix medatata
*/
/**
* @addtogroup lavu_audio
* @{
*/
/**
* @defgroup downmix_info Audio downmix metadata
* @{
*/
/**
* Possible downmix types.
*/
enum AVDownmixType {
AV_DOWNMIX_TYPE_UNKNOWN, /**< Not indicated. */
AV_DOWNMIX_TYPE_LORO, /**< Lo/Ro 2-channel downmix (Stereo). */
AV_DOWNMIX_TYPE_LTRT, /**< Lt/Rt 2-channel downmix, Dolby Surround compatible. */
AV_DOWNMIX_TYPE_DPLII, /**< Lt/Rt 2-channel downmix, Dolby Pro Logic II compatible. */
AV_DOWNMIX_TYPE_NB /**< Number of downmix types. Not part of ABI. */
};
/**
* This structure describes optional metadata relevant to a downmix procedure.
*
* All fields are set by the decoder to the value indicated in the audio
* bitstream (if present), or to a "sane" default otherwise.
*/
typedef struct AVDownmixInfo {
/**
* Type of downmix preferred by the mastering engineer.
*/
enum AVDownmixType preferred_downmix_type;
/**
* Absolute scale factor representing the nominal level of the center
* channel during a regular downmix.
*/
double center_mix_level;
/**
* Absolute scale factor representing the nominal level of the center
* channel during an Lt/Rt compatible downmix.
*/
double center_mix_level_ltrt;
/**
* Absolute scale factor representing the nominal level of the surround
* channels during a regular downmix.
*/
double surround_mix_level;
/**
* Absolute scale factor representing the nominal level of the surround
* channels during an Lt/Rt compatible downmix.
*/
double surround_mix_level_ltrt;
/**
* Absolute scale factor representing the level at which the LFE data is
* mixed into L/R channels during downmixing.
*/
double lfe_mix_level;
} AVDownmixInfo;
/**
* Get a frame's AV_FRAME_DATA_DOWNMIX_INFO side data for editing.
*
* If the side data is absent, it is created and added to the frame.
*
* @param frame the frame for which the side data is to be obtained or created
*
* @return the AVDownmixInfo structure to be edited by the caller, or NULL if
* the structure cannot be allocated.
*/
AVDownmixInfo *av_downmix_info_update_side_data(AVFrame *frame);
/**
* @}
*/
/**
* @}
*/
#endif /* AVUTIL_DOWNMIX_INFO_H */

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/**
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef AVUTIL_ENCRYPTION_INFO_H
#define AVUTIL_ENCRYPTION_INFO_H
#include <stddef.h>
#include <stdint.h>
typedef struct AVSubsampleEncryptionInfo {
/** The number of bytes that are clear. */
unsigned int bytes_of_clear_data;
/**
* The number of bytes that are protected. If using pattern encryption,
* the pattern applies to only the protected bytes; if not using pattern
* encryption, all these bytes are encrypted.
*/
unsigned int bytes_of_protected_data;
} AVSubsampleEncryptionInfo;
/**
* This describes encryption info for a packet. This contains frame-specific
* info for how to decrypt the packet before passing it to the decoder.
*
* The size of this struct is not part of the public ABI.
*/
typedef struct AVEncryptionInfo {
/** The fourcc encryption scheme, in big-endian byte order. */
uint32_t scheme;
/**
* Only used for pattern encryption. This is the number of 16-byte blocks
* that are encrypted.
*/
uint32_t crypt_byte_block;
/**
* Only used for pattern encryption. This is the number of 16-byte blocks
* that are clear.
*/
uint32_t skip_byte_block;
/**
* The ID of the key used to encrypt the packet. This should always be
* 16 bytes long, but may be changed in the future.
*/
uint8_t *key_id;
uint32_t key_id_size;
/**
* The initialization vector. This may have been zero-filled to be the
* correct block size. This should always be 16 bytes long, but may be
* changed in the future.
*/
uint8_t *iv;
uint32_t iv_size;
/**
* An array of subsample encryption info specifying how parts of the sample
* are encrypted. If there are no subsamples, then the whole sample is
* encrypted.
*/
AVSubsampleEncryptionInfo *subsamples;
uint32_t subsample_count;
} AVEncryptionInfo;
/**
* This describes info used to initialize an encryption key system.
*
* The size of this struct is not part of the public ABI.
*/
typedef struct AVEncryptionInitInfo {
/**
* A unique identifier for the key system this is for, can be NULL if it
* is not known. This should always be 16 bytes, but may change in the
* future.
*/
uint8_t* system_id;
uint32_t system_id_size;
/**
* An array of key IDs this initialization data is for. All IDs are the
* same length. Can be NULL if there are no known key IDs.
*/
uint8_t** key_ids;
/** The number of key IDs. */
uint32_t num_key_ids;
/**
* The number of bytes in each key ID. This should always be 16, but may
* change in the future.
*/
uint32_t key_id_size;
/**
* Key-system specific initialization data. This data is copied directly
* from the file and the format depends on the specific key system. This
* can be NULL if there is no initialization data; in that case, there
* will be at least one key ID.
*/
uint8_t* data;
uint32_t data_size;
/**
* An optional pointer to the next initialization info in the list.
*/
struct AVEncryptionInitInfo *next;
} AVEncryptionInitInfo;
/**
* Allocates an AVEncryptionInfo structure and sub-pointers to hold the given
* number of subsamples. This will allocate pointers for the key ID, IV,
* and subsample entries, set the size members, and zero-initialize the rest.
*
* @param subsample_count The number of subsamples.
* @param key_id_size The number of bytes in the key ID, should be 16.
* @param iv_size The number of bytes in the IV, should be 16.
*
* @return The new AVEncryptionInfo structure, or NULL on error.
*/
AVEncryptionInfo *av_encryption_info_alloc(uint32_t subsample_count, uint32_t key_id_size, uint32_t iv_size);
/**
* Allocates an AVEncryptionInfo structure with a copy of the given data.
* @return The new AVEncryptionInfo structure, or NULL on error.
*/
AVEncryptionInfo *av_encryption_info_clone(const AVEncryptionInfo *info);
/**
* Frees the given encryption info object. This MUST NOT be used to free the
* side-data data pointer, that should use normal side-data methods.
*/
void av_encryption_info_free(AVEncryptionInfo *info);
/**
* Creates a copy of the AVEncryptionInfo that is contained in the given side
* data. The resulting object should be passed to av_encryption_info_free()
* when done.
*
* @return The new AVEncryptionInfo structure, or NULL on error.
*/
AVEncryptionInfo *av_encryption_info_get_side_data(const uint8_t *side_data, size_t side_data_size);
/**
* Allocates and initializes side data that holds a copy of the given encryption
* info. The resulting pointer should be either freed using av_free or given
* to av_packet_add_side_data().
*
* @return The new side-data pointer, or NULL.
*/
uint8_t *av_encryption_info_add_side_data(
const AVEncryptionInfo *info, size_t *side_data_size);
/**
* Allocates an AVEncryptionInitInfo structure and sub-pointers to hold the
* given sizes. This will allocate pointers and set all the fields.
*
* @return The new AVEncryptionInitInfo structure, or NULL on error.
*/
AVEncryptionInitInfo *av_encryption_init_info_alloc(
uint32_t system_id_size, uint32_t num_key_ids, uint32_t key_id_size, uint32_t data_size);
/**
* Frees the given encryption init info object. This MUST NOT be used to free
* the side-data data pointer, that should use normal side-data methods.
*/
void av_encryption_init_info_free(AVEncryptionInitInfo* info);
/**
* Creates a copy of the AVEncryptionInitInfo that is contained in the given
* side data. The resulting object should be passed to
* av_encryption_init_info_free() when done.
*
* @return The new AVEncryptionInitInfo structure, or NULL on error.
*/
AVEncryptionInitInfo *av_encryption_init_info_get_side_data(
const uint8_t* side_data, size_t side_data_size);
/**
* Allocates and initializes side data that holds a copy of the given encryption
* init info. The resulting pointer should be either freed using av_free or
* given to av_packet_add_side_data().
*
* @return The new side-data pointer, or NULL.
*/
uint8_t *av_encryption_init_info_add_side_data(
const AVEncryptionInitInfo *info, size_t *side_data_size);
#endif /* AVUTIL_ENCRYPTION_INFO_H */

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