1

src/rtmp_manager.cpp

@@ -59,26 +59,23 @@ GstElement* RTMPManager::create_pipeline(const Camera& cam)
     std::string pipeline_str = "v4l2src device=" + cam.device +
                                " io-mode=dmabuf "
 
-                               // 原始输入
                                "! video/x-raw,format=NV12,width=1280,height=960,framerate=30/1 "
 
-                               // 裁剪 + 缩放
                                "! videocrop top=120 bottom=120 "
+
                                "! videoscale "
 
-                               // ⭐ 关键：在 RAW 阶段强制重打时钟（修复“看着一顿”）
+                               // ⭐ 关键：重建时间轴
                                "! videorate "
                                "! video/x-raw,framerate=30/1 "
 
-                               // 输出分辨率
+                               // ⭐ 输出尺寸（注意这里前后都有空格）
                                "! video/x-raw,width=" +
                                std::to_string(cam.width) + ",height=" + std::to_string(cam.height) +
                                " "
 
-                               // 缓冲
                                "! queue max-size-buffers=8 max-size-time=0 leaky=downstream "
 
-                               // 编码
                                "! mpph264enc rc-mode=cbr "
                                "bps=" +
                                std::to_string(cam.bitrate) +
@@ -88,14 +85,15 @@ GstElement* RTMPManager::create_pipeline(const Camera& cam)
                                " "
                                "header-mode=each-idr profile=main "
 
-                               // H264 处理
-                               "! h264parse name=parse config-interval=1 "
+                               "! h264parse config-interval=1 "
                                "! video/x-h264,stream-format=avc,alignment=au "
 
-                               // RTMP
                                "! flvmux streamable=true "
+
                                "! rtmpsink location=\"" +
-                               rtmp_url + "\" sync=false async=false";
+                               rtmp_url +
+                               "\" "
+                               "sync=false async=false";
 
     GError* error = nullptr;
     GstElement* pipeline = gst_parse_launch(pipeline_str.c_str(), &error);