fixed--解决ssrc默认开启失败的问题，解决信令超时设备下线的bug

chenjialing

2022-06-17 39a5c8e2cf18cab6469bc0204d2b3c4d7e9e2935

 src/main/java/com/genersoft/iot/vmp/storager/impl/VideoManagerStorageImpl.java

@@ -885,6 +885,11 @@
   }

   @Override
   public StreamPushItem getMedia(String app, String stream) {
      return streamPushMapper.selectOne(app, stream);
   }

   @Override
   public void clearMediaList() {
      streamPushMapper.clear();
   }