diff --git a/cmvr-es/devices/camera/realsense_camera/src/realsense_camera.cpp b/cmvr-es/devices/camera/realsense_camera/src/realsense_camera.cpp
index 55b5e3e9..ec616665 100644
--- a/cmvr-es/devices/camera/realsense_camera/src/realsense_camera.cpp
+++ b/cmvr-es/devices/camera/realsense_camera/src/realsense_camera.cpp
@@ -884,7 +884,7 @@ bool RealsenseCamera::initSingleEncoder(std::shared_ptr<FfmpegEncoderInfo>& enco
     ctx->time_base = {1, fps};      // 时间基（1/fps）
     ctx->framerate = {fps, 1};      // 帧率
     ctx->max_b_frames = 0;          // 禁用B帧（降低延迟）
-    ctx->gop_size = 10;//I帧间隔1，每一帧都是I帧
+    ctx->gop_size = 10;//I帧间隔
     // 5. 设置编码器私有参数
     if (codec->id == AV_CODEC_ID_H264) {
         av_opt_set(ctx->priv_data, "preset", "ultrafast", 0);
@@ -903,6 +903,7 @@ bool RealsenseCamera::initSingleEncoder(std::shared_ptr<FfmpegEncoderInfo>& enco
             "min-keyint=%d:"       // 最小关键帧间隔
             "no-open-gop=1:"       // 禁用开放GOP
             "bframes=0:"           // 禁用B帧
+            "lookahead=0:"
             "log-level=none",       // 日志级别
             10, 10);                // 设置keyint和min-keyint为10