diff --git a/src/rtsp_manager.cpp b/src/rtsp_manager.cpp
index 0c96561..041b844 100644
--- a/src/rtsp_manager.cpp
+++ b/src/rtsp_manager.cpp
@@ -22,6 +22,7 @@ void RTSPManager::init()
     LOG_INFO("[RTSP] GStreamer initialized.");
 }
 
+// 创建 media factory
 // 创建 media factory
 GstRTSPMediaFactory *RTSPManager::create_media_factory(const Camera &cam)
 {
@@ -37,9 +38,9 @@ GstRTSPMediaFactory *RTSPManager::create_media_factory(const Camera &cam)
         ",framerate=" + std::to_string(cam.fps) + "/1"
                                                   " ! queue max-size-buffers=2 leaky=downstream"
                                                   " ! mpph264enc bps=2000000 gop=" +
-        std::to_string(cam.fps) + " b_frame=0"
-                                  " ! h264parse"
-                                  " ! rtph264pay name=pay0 pt=96 )";
+        std::to_string(cam.fps) +
+        " ! h264parse"
+        " ! rtph264pay name=pay0 pt=96 config-interval=1 )";
 
     GstRTSPMediaFactory *factory = gst_rtsp_media_factory_new();
     gst_rtsp_media_factory_set_launch(factory, launch_str.c_str());