Exoplayer for android, trying to stream a m3u8 file and getting error: None of the available extractors could read the stream

Question

我正在尝试流式传输 m3u8 文件，但出现错误。我正在使用的 url 如下：http://storage.googleapis.com/videos.siku.org/10005/dash/master.m3u8 此流式视频确实可以在浏览器中使用。我在运行时收到以下错误：

ExoPlayerImplInternal: Source error. com.google.android.exoplayer2.source.UnrecognizedInputFormatException: None of the available extractors (MatroskaExtractor, FragmentedMp4Extractor, Mp4Extractor, Mp3Extractor, AdtsExtractor, Ac3Extractor, TsExtractor, FlvExtractor, OggExtractor, PsExtractor, WavExtractor, AmrExtractor, Ac4Extractor, FlacExtractor) could read the stream. at com.google.android.exoplayer2.source.ProgressiveMediaPeriod$ExtractorHolder.selectExtractor(ProgressiveMediaPeriod.java:1090) at com.google.android.exoplayer2.source.ProgressiveMediaPeriod$ExtractingLoadable.load(ProgressiveMediaPeriod.java:969) at com.google.android.exoplayer2.upstream.Loader$LoadTask.run(Loader.java:391) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1162) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:636) at java.lang.Thread.run(Thread.java:764)

我正在使用 class （取自一个 Whosebug 问题，尽管我确实按照推荐的方式实现了这个并且我遇到了同样的错误）

这是我正在使用的class：

class ExoPlayerHelper(
    private val playerView: PlayerView,
    onError: (ExoPlaybackException) -> Unit,
    onPlayerBuffer: (Boolean) -> Unit
) {
    private var exoPlayer: ExoPlayer? = null
    private var mediaSource: ProgressiveMediaSource? = null
    private val playerListener = object : Player.EventListener {
        override fun onPlayerError(error: ExoPlaybackException) {
            super.onPlayerError(error)
            onError(error)
        }

        override fun onPlayerStateChanged(playWhenReady: Boolean, playbackState: Int) {
            super.onPlayerStateChanged(playWhenReady, playbackState)
            onPlayerBuffer(playbackState == Player.STATE_BUFFERING)
        }
    }

    fun initializePlayer(url: String) {
        exoPlayer = SimpleExoPlayer.Builder(playerView.context).build()
        exoPlayer!!.repeatMode = Player.REPEAT_MODE_ALL
        exoPlayer!!.addListener(playerListener)
        playerView.player = exoPlayer

        val userAgent =
            Util.getUserAgent(playerView.context, playerView.context.getString(R.string.app_name))
        mediaSource = ProgressiveMediaSource
            .Factory(
                DefaultDataSourceFactory(playerView.context, userAgent),
                DefaultExtractorsFactory()
            )
            .createMediaSource(Uri.parse(url))
            exoPlayer!!.prepare(mediaSource!!, true, false)
            exoPlayer!!.playWhenReady = true
        }
    }
}

我确实得到一个空白 com.google.android.exoplayer2.ui.PlayerView，其中显示了控件。按下播放按钮时，我收到相同的错误消息：

com.google.android.exoplayer2.ExoPlaybackException: com.google.android.exoplayer2.source.UnrecognizedInputFormatException: None of the available extractors (MatroskaExtractor, FragmentedMp4Extractor, Mp4Extractor, Mp3Extractor, AdtsExtractor, Ac3Extractor, TsExtractor, FlvExtractor, OggExtractor, PsExtractor, WavExtractor, AmrExtractor, Ac4Extractor, FlacExtractor) could read the stream.

关于我为什么会收到此错误 UnrecognizedInputFormatException 的任何线索？

Answer 1

由于您正在尝试播放 m3u8 文件，因此您需要创建 HLS 媒体源。所以只需进行以下更改 -

mediaSource =HlsMediaSource.Factory(DefaultHttpDataSourceFactory(userAgent))
                .createMediaSource(uri)

Exoplayer for android, trying to stream a m3u8 file and getting error: None of the available extractors could read the stream

Exoplayer for android, trying to stream a m3u8 file and getting error: None of the available extractors could read the stream

android

video-streaming

exoplayer2.x