修复语音对讲后停止点播失败的BUG

src/main/java/com/genersoft/iot/vmp/media/service/impl/MediaServerServiceImpl.java

@@ -197,7 +197,7 @@ public class MediaServerServiceImpl implements IMediaServerService {
         } else {
             rtpServerPort = mediaServer.getRtpProxyPort();
         }
-        return new SSRCInfo(rtpServerPort, ssrc, streamId, null);
+        return new SSRCInfo(rtpServerPort, ssrc, "rtp", streamId, null);
     }
 
     @Override