feat: 自启动与自恢复机制

include/video_pipeline.h

@@ -18,6 +18,8 @@ typedef struct video_pipeline_packet_metadata {
     double longitude;
 } video_pipeline_packet_metadata_t;
 
+typedef void (*video_pipeline_progress_fn)(void *context);
+
 #if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L
 _Static_assert(sizeof(video_pipeline_packet_metadata_t) == 24, "video trailer metadata must be 24 bytes");
 #endif
@@ -39,6 +41,8 @@ typedef struct video_pipeline_config {
     int soft_backpressure_segments;
     int hard_backpressure_segments;
     int hard_backpressure_hold_ms;
+    video_pipeline_progress_fn progress_callback;
+    void *progress_context;
 } video_pipeline_config_t;
 
 typedef struct video_pipeline_stats {