jingking

第一次无法打开RTMP资源，尝试播放其他在线文件然后返回再打开，播放正常

2

**Describe the bug清晰描述你遇到了什么问题。** > When compile and run the fijkplayer demo (https://github.com/befovy/fijkplayer/tree/master/example), > if I try to play rtmp stream, first time always fail (no video). However, if play other...