rtmp支持更新config帧

src/Rtmp/RtmpMediaSource.h

@@ -131,8 +131,11 @@ public:
         if (pkt->isCfgFrame()) {
         if (pkt->isCfgFrame()) {
             lock_guard<recursive_mutex> lock(_mtx);
             lock_guard<recursive_mutex> lock(_mtx);
             _config_frame_map[pkt->type_id] = pkt;
             _config_frame_map[pkt->type_id] = pkt;
+            if (!_ring) {
+                //注册后收到config帧更新到各播放器
                 return;
                 return;
             }
             }
+        }
 
 
         if (!_ring) {
         if (!_ring) {
             weak_ptr<RtmpMediaSource> weakSelf = dynamic_pointer_cast<RtmpMediaSource>(shared_from_this());
             weak_ptr<RtmpMediaSource> weakSelf = dynamic_pointer_cast<RtmpMediaSource>(shared_from_this());