无法通过ExoPlayer播放直播视频

Question

我正在使用ExoPlayer在安卓系统中播放视频。我们使用ExoPlayer来播放mp4和直播视频。但有时我们会得到下面描述的异常。

> 12-01 14:15:09.388 12080-12517/com.mse.monumentalsnetwork
> E/ExoPlayerImplInternal: Source error.
>                                                                                    com.google.android.exoplayer2.source.UnrecognizedInputFormatException:
> Input does not start with the #EXTM3U header.
>                                                                                        at
> com.google.android.exoplayer2.source.hls.playlist.HlsPlaylistParser.parse(HlsPlaylistParser.java:119)
>                                                                                        at
> com.google.android.exoplayer2.source.hls.playlist.HlsPlaylistParser.parse(HlsPlaylistParser.java:43)
>                                                                                        at
> com.google.android.exoplayer2.upstream.ParsingLoadable.load(ParsingLoadable.java:115)
>                                                                                        at
> com.google.android.exoplayer2.upstream.Loader$LoadTask.run(Loader.java:315)
>                                                                                        at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
>                                                                                        at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
>                                                                                        at java.lang.Thread.run(Thread.java:818)

所以请帮帮我。