在Google VR for Android示例中播放m3u8

Question

我试图在来自Google https://developers.google.com/vr/android/samples/vrview的VRVideoView示例中播放m3u8网址。它与mp4或flv配合得很好，但在尝试使用m3u8时出现以下错误：

  

com.google.vr.sdk.samples.simplevideowidget E / VrVideoPlayerInternal：   136877483.onPlayerError                                                                                                       com.google.android.exoplayer.ExoPlaybackException：   com.google.android.exoplayer.extractor.ExtractorSampleSource $ UnrecognizedInputFormatException：   没有可用的提取器（WebmExtractor，   FragmentedMp4Extractor，Mp4Extractor，Mp3Extractor，AdtsExtractor，   TsExtractor，FlvExtractor，OggExtractor，PsExtractor，WavExtractor）   可以读取流。                                                                                                           在   com.google.android.exoplayer.SampleSourceTrackRenderer.maybeThrowError（SampleSourceTrackRenderer.java:263）                                                                                                           在   com.google.android.exoplayer.SampleSourceTrackRenderer.maybeThrowError（SampleSourceTrackRenderer.java:149）                                                                                                           在   com.google.android.exoplayer.ExoPlayerImplInternal.incrementalPrepareInternal（ExoPlayerImplInternal.java:275）                                                                                                           在   com.google.android.exoplayer.ExoPlayerImplInternal.handleMessage（ExoPlayerImplInternal.java:205）                                                                                                           在android.os.Handler.dispatchMessage（Handler.java:98）                                                                                                           在android.os.Looper.loop（Looper.java:154）                                                                                                           在android.os.HandlerThread.run（HandlerThread.java:61）                                                                                                           在   com.google.android.exoplayer.util.PriorityHandlerThread.run（PriorityHandlerThread.java:40）

     

引起：   com.google.android.exoplayer.extractor.ExtractorSampleSource $ UnrecognizedInputFormatException：   没有可用的提取器（WebmExtractor，   FragmentedMp4Extractor，Mp4Extractor，Mp3Extractor，AdtsExtractor，   TsExtractor，FlvExtractor，OggExtractor，PsExtractor，WavExtractor）   可以读取流。                                                                                                           在   com.google.android.exoplayer.extractor.ExtractorSampleSource $ ExtractorHolder.selectExtractor（ExtractorSampleSource.java:899）                                                                                                           在   com.google.android.exoplayer.extractor.ExtractorSampleSource $ ExtractingLoadable.load（ExtractorSampleSource.java:829）                                                                                                           在   com.google.android.exoplayer.upstream.Loader $ LoadTask.run（Loader.java:209）                                                                                                           在   java.util.concurrent.Executors $ RunnableAdapter.call（Executors.java:428）                                                                                                           在java.util.concurrent.FutureTask.run（FutureTask.java:237）                                                                                                           在   java.util.concurrent.ThreadPoolExecutor.runWorker（ThreadPoolExecutor.java:1133）                                                                                                           在   java.util.concurrent.ThreadPoolExecutor中的$ Worker.run（ThreadPoolExecutor.java:607）                                                                                                           在java.lang.Thread.run（Thread.java:761）

我可以在这个错误堆栈中看到Exoplayer用于播放视频，但它不应该与m3u8一起使用吗？以下是我使用的网址：http://www.nacentapps.com/m3u8/index.m3u8。

感谢您的帮助！

Answer 1

要播放m3u8，您需要做的就是将选项输入格式更改为，

'Uri uri = Uri.parse("https:proper_url.m3u8");
VrVideoView.Options vrVideoView = new VrVideoView.Options(); 
vrVideoView.inputFormat = VrVideoView.Options.FORMAT_HLS; 
videoWidgetView.loadVideo(uri, vrVideoView)'

Answer 2

尝试使用下面的代码示例中的示例网址替换url，如果有效，则可以重用下面提供的github帐户中的示例代码： https://github.com/google/ExoPlayer/tree/master/demo/src/main/java/com/google/android/exoplayer

如果它不起作用，那么该文件必须有一些问题或exoplayer不支持它..

Answer 3

要播放.m3u8文件，请在初始化Exoplayer时使用以下代码：

Handler mHandler = new Handler();

String userAgent = Util.getUserAgent(context, "Exo Player");

DataSource.Factory dataSourceFactory = new DefaultHttpDataSourceFactory(
                userAgent, null,
                DefaultHttpDataSource.DEFAULT_CONNECT_TIMEOUT_MILLIS,
                1800000,
                true);

HlsMediaSource mediaSource = new HlsMediaSource(Uri.parse(mediaUrl),dataSourceFactory, 1800000,mHandler, null);

if (mediaUrl != null) {
    videoPlayer.prepare(mediaSource);
    videoPlayer.setPlayWhenReady(true);
}