如何让ExoPlayer通过它的URL识别源类型？

Question

我最近在我的Android应用程序中开始使用ExoPlayer，但我面临的问题是ExoPlayer无法通过其URL自动识别源类型。

有什么解决方案，我可以通过一个URL和ExoPlayer自动定义如何播放它（作为视频或HLS流）。

Answer 1

private MediaSource buildMediaSource(Uri uri, String overrideExtension) { 
    int type = TextUtils.isEmpty(overrideExtension) ? Util.inferContentType(uri) 
    : Util.inferContentType("." + overrideExtension); 
    switch (type) { 
     case C.TYPE_SS: 
      return new SsMediaSource(uri, buildDataSourceFactory(false), 
       new DefaultSsChunkSource.Factory(mediaDataSourceFactory), mainHandler, eventLogger); 
     case C.TYPE_DASH: 
      return new DashMediaSource(uri, buildDataSourceFactory(false), 
       new DefaultDashChunkSource.Factory(mediaDataSourceFactory), mainHandler, eventLogger); 
     case C.TYPE_HLS: 
      return new HlsMediaSource(uri, mediaDataSourceFactory, mainHandler, eventLogger); 
     case C.TYPE_OTHER: 
      return new ExtractorMediaSource(uri, mediaDataSourceFactory, new DefaultExtractorsFactory(), 
       mainHandler, eventLogger); 
     default: { 
      throw new IllegalStateException("Unsupported type: " + type); 
    } 
} 

}

来源：https://github.com/google/ExoPlayer/blob/release-v2/demo/src/main/java/com/google/android/exoplayer2/demo/PlayerActivity.java