Android端just_audio播放30个音频后出现Audio Sink/Playback Error求助

算力阿峰

2026-7-7

Android端just_audio播放多音频后触发AudioTrack初始化失败（错误码-20）

我开发的播客应用在Android端使用just_audio播放30个音频后，会触发Audio Sink Error与Audio Playback Error。即使重复播放同一批30个音频，播放30-35次后播放器失效：音频文件看似在播放但无声音，播放器通知控件停留在上一个音频界面。

该问题仅出现在Android端，iOS端播放完全正常。尝试播放本地下载和服务器端的MP3音频均出现此问题，甚至杀死应用后audio_service仍会后台运行但无声音。相关错误日志显示初始化AudioTrack时返回-20错误，无法创建AudioTrack。

错误日志

E/android.media.AudioTrack( 8248): Error code -20 when initializing AudioTrack.
E/MediaCodecAudioRenderer( 8248): Audio sink error
E/MediaCodecAudioRenderer( 8248):   com.google.android.exoplayer2.audio.AudioSink$InitializationException: AudioTrack init failed 0 Config(44100, 4, 28288) Format(null, null, null, audio/raw, null, -1, null, [-1, -1, -1.0], [1, 44100])
E/MediaCodecAudioRenderer( 8248):       at com.google.android.exoplayer2.audio.DefaultAudioSink$Configuration.buildAudioTrack(DefaultAudioSink.java:2136)
E/MediaCodecAudioRenderer( 8248):       at com.google.android.exoplayer2.audio.DefaultAudioSink.buildAudioTrack(DefaultAudioSink.java:1073)
E/MediaCodecAudioRenderer( 8248):       at com.google.android.exoplayer2.audio.DefaultAudioSink.buildAudioTrackWithRetry(DefaultAudioSink.java:1051)
E/MediaCodecAudioRenderer( 8248):       at com.google.android.exoplayer2.audio.DefaultAudioSink.initializeAudioTrack(DefaultAudioSink.java:843)
E/MediaCodecAudioRenderer( 8248):       at com.google.android.exoplayer2.audio.DefaultAudioSink.handleBuffer(DefaultAudioSink.java:929)
E/MediaCodecAudioRenderer( 8248):       at com.google.android.exoplayer2.audio.MediaCodecAudioRenderer.processOutputBuffer(MediaCodecAudioRenderer.java:709)
E/MediaCodecAudioRenderer( 8248):       at com.google.android.exoplayer2.mediacodec.MediaCodecRenderer.drainOutputBuffer(MediaCodecRenderer.java:1889)
E/MediaCodecAudioRenderer( 8248):       at com.google.android.exoplayer2.mediacodec.MediaCodecRenderer.render(MediaCodecRenderer.java:782)
E/MediaCodecAudioRenderer( 8248):       at com.google.android.exoplayer2.ExoPlayerImplInternal.doSomeWork(ExoPlayerImplInternal.java:1007)
E/MediaCodecAudioRenderer( 8248):       at com.google.android.exoplayer2.ExoPlayerImplInternal.handleMessage(ExoPlayerImplInternal.java:502)
E/MediaCodecAudioRenderer( 8248):       at android.os.Handler.dispatchMessage(Handler.java:102)
E/MediaCodecAudioRenderer( 8248):       at android.os.Looper.loopOnce(Looper.java:240)
E/MediaCodecAudioRenderer( 8248):       at android.os.Looper.loop(Looper.java:351)
E/MediaCodecAudioRenderer( 8248):       at android.os.HandlerThread.run(HandlerThread.java:67)
E/MediaCodecAudioRenderer( 8248):   Caused by: java.lang.UnsupportedOperationException: Cannot create AudioTrack
E/MediaCodecAudioRenderer( 8248):       at android.media.AudioTrack$Builder.build(AudioTrack.java:1390)
E/MediaCodecAudioRenderer( 8248):       at com.google.android.exoplayer2.audio.DefaultAudioSink$Configuration.createAudioTrackV29(DefaultAudioSink.java:2185)
E/MediaCodecAudioRenderer( 8248):       at com.google.android.exoplayer2.audio.DefaultAudioSink$Configuration.createAudioTrack(DefaultAudioSink.java:2163)
E/MediaCodecAudioRenderer( 8248):       at com.google.android.exoplayer2.audio.DefaultAudioSink$Configuration.buildAudioTrack(DefaultAudioSink.java:2128)
E/MediaCodecAudioRenderer( 8248):       ... 13 more
E/ExoPlayerImplInternal( 8248): Playback error
E/ExoPlayerImplInternal( 8248):   com.google.android.exoplayer2.ExoPlaybackException: MediaCodecAudioRenderer error, index=1, format=Format(null, null, null, audio/mpeg, null, -1, null, [-1, -1, -1.0], [1, 44100]), format_supported=YES
E/ExoPlayerImplInternal( 8248):       at com.google.android.exoplayer2.ExoPlayerImplInternal.handleMessage(ExoPlayerImplInternal.java:578)
E/ExoPlayerImplInternal( 8248):       at android.os.Handler.dispatchMessage(Handler.java:102)
E/ExoPlayerImplInternal( 8248):       at android.os.Looper.loopOnce(Looper.java:240)
E/ExoPlayerImplInternal( 8248):       at android.os.Looper.loop(Looper.java:351)
E/ExoPlayerImplInternal( 8248):       at android.os.HandlerThread.run(HandlerThread.java:67)
E/ExoPlayerImplInternal( 8248):   Caused by: com.google.android.exoplayer2.audio.AudioSink$InitializationException: AudioTrack init failed 0 Config(44100, 4, 28288) Format(null, null, null, audio/raw, null, -1, null, [-1, -1, -1.0], [1, 44100])
E/ExoPlayerImplInternal( 8248):       at com.google.android.exoplayer2.audio.DefaultAudioSink$Configuration.buildAudioTrack(DefaultAudioSink.java:2136)
E/ExoPlayerImplInternal( 8248):       at com.google.android.exoplayer2.audio.DefaultAudioSink.buildAudioTrack(DefaultAudioSink.java:1073)
E/ExoPlayerImplInternal( 8248):       at com.google.android.exoplayer2.audio.DefaultAudioSink.buildAudioTrackWithRetry(DefaultAudioSink.java:1051)
E/ExoPlayerImplInternal( 8248):       at com.google.android.exoplayer2.audio.DefaultAudioSink.initializeAudioTrack(DefaultAudioSink.java:843)
E/ExoPlayerImplInternal( 8248):       at com.google.android.exoplayer2.audio.DefaultAudioSink.handleBuffer(DefaultAudioSink.java:929)
E/ExoPlayerImplInternal( 8248):       at com.google.android.exoplayer2.audio.MediaCodecAudioRenderer.processOutputBuffer(MediaCodecAudioRenderer.java:709)
E/ExoPlayerImplInternal( 8248):       at com.google.android.exoplayer2.mediacodec.MediaCodecRenderer.drainOutputBuffer(MediaCodecRenderer.java:1889)
E/ExoPlayerImplInternal( 8248):       at com.google.android.exoplayer2.mediacodec.MediaCodecRenderer.render(MediaCodecRenderer.java:782)
E/ExoPlayerImplInternal( 8248):       at com.google.android.exoplayer2.ExoPlayerImplInternal.doSomeWork(ExoPlayerImplInternal.java:1007)
E/ExoPlayerImplInternal( 8248):       at com.google.android.exoplayer2.ExoPlayerImplInternal.handleMessage(ExoPlayerImplInternal.java:502)
E/ExoPlayerImplInternal( 8248):       ... 4 more
E/ExoPlayerImplInternal( 8248):       Suppressed: com.google.android.exoplayer2.audio.AudioSink$InitializationException: AudioTrack init failed 0 Config(44100, 4, 28288) Format(null, null, null, audio/raw, null, -1, null, [-1, -1, -1.0], [1, 44100])
E/ExoPlayerImplInternal( 8248):           ... 14 more
E/ExoPlayerImplInternal( 8248):       Caused by: java.lang.UnsupportedOperationException: Cannot create AudioTrack
E/ExoPlayerImplInternal( 8248):           at android.media.AudioTrack$Builder.build(AudioTrack.java:1390)
E/ExoPlayerImplInternal( 8248):           at com.google.android.exoplayer2.audio.DefaultAudioSink$Configuration.createAudioTrackV29(DefaultAudioSink.java:2185)
E/ExoPlayerImplInternal( 8248):           at com.google.android.exoplayer2.audio.DefaultAudioSink$Configuration.createAudioTrack(DefaultAudioSink.java:2163)
E/ExoPlayerImplInternal( 8248):           at com.google.android.exoplayer2.audio.DefaultAudioSink$Configuration.buildAudioTrack(DefaultAudioSink.java:2128)
E/ExoPlayerImplInternal( 8248):           ... 13 more
E/ExoPlayerImplInternal( 8248):   Caused by: java.lang.UnsupportedOperationException: Cannot create AudioTrack
E/ExoPlayerImplInternal( 8248):       at android.media.AudioTrack$Builder.build(AudioTrack.java:1390)
E/ExoPlayerImplInternal( 8248):       at com.google.android.exoplayer2.audio.DefaultAudioSink$Configuration.createAudioTrackV29(DefaultAudioSink.java:2185)
E/ExoPlayerImplInternal( 8248):       at com.google.android.exoplayer2.audio.DefaultAudioSink$Configuration.createAudioTrack(DefaultAudioSink.java:2163)
E/ExoPlayerImplInternal( 8248):       at com.google.android.exoplayer2.audio.DefaultAudioSink$Configuration.buildAudioTrack(DefaultAudioSink.java:2128)
E/ExoPlayerImplInternal( 8248):       ... 13 more
D/MediaCodec( 8248): [0xb4000075ee75b000] setState: 7

相关代码

audioHandler.dart

class AudioPlayerHandlerMain extends BaseAudioHandler
    with SeekHandler, ChangeNotifier {
   AudioPlayer _player = AudioPlayer();
  static var current_audio_file_id = '';
  static var current_audio_file_type = 'suhbas';

  Future<void> dispose() async {

    _player.dispose();
    print("Disposedddd");

  }


  Stream<Duration>? _positionStream;
  var currentSecond = 0;
  late StreamSubscription<Duration> _positionSubscription;

  AudioPlayerHandlerMain(PlayingMediaItem _item, BuildContext context) {
    _player.playbackEventStream.map(_transformEvent).pipe(playbackState);


    mediaItem.add(_item);

    _player.setAudioSource(AudioSource.uri(Uri.parse(_item.id)));
    notifyListeners();
  }

  AudioPlayer getPlayer() {

    return _player;
  }

  static isMediaPlayable(String? url, int id) async {
    print("Audio file id: $id");
    try {
      if(Platform.isIOS){
        AudioPlayer().setFilePath(url ?? "");
      }else{
        await AudioPlayer().setUrl(url ?? "");
       }

      Timer.periodic(Duration(seconds: 10), (Timer t) {
        getIt<AudioPulseDaoRepository>()
            .getAudioPulseItem(current_audio_file_id)
            .then((value) {
         });
      });

      return true;
    } catch (e) {
      return false;
    }
  }

  static getDuration(String url) async {
    try {
      return await AudioPlayer().setUrl(url ?? "");
    } catch (e) {
      return Duration();
    }
  }

  AudioPlayerHandlerMain? _audioHandler;

  void initAudioHandler(AudioPlayerHandlerMain audioHandler) {


    _audioHandler = audioHandler;
   

    notifyListeners();


  }

  AudioPlayerHandlerMain? audioHandler() => _audioHandler;
  @override
  Future<void> play() async {
    
    _player.play();
    notifyListeners();
  }


  @override
  Future<void> pause() async{
    _player.pause();
    notifyListeners();
  }

  @override
  Future<void> seek(Duration position) => _player.seek(position);

  @override
  Future<void> stop() async {
    _player.stop();
    await playbackState.firstWhere((state) => state.processingState == AudioProcessingState.idle);
    super.stop();
  }

  PlaybackState _transformEvent(PlaybackEvent event) {
    if (current_audio_file_id.isNotEmpty) {
      Stream.periodic(const Duration(seconds: 4), (_) => _player.position)
          .listen((event) {
        if (event.inSeconds != 0) {
          currentSecond = event.inSeconds;
          if(currentSecond%5==0){
            getIt<AudioPulseDaoRepository>().insertAudioPulseItem(
                AudioPulseModel(
                    current_audio_file_id, currentSecond.toString(), current_audio_file_type));
          }
        }
      });
    }

    return PlaybackState(
      controls: [
        MediaControl.rewind,
        if (_player.playing) MediaControl.pause else MediaControl.play,
        MediaControl.stop,
        MediaControl.fastForward,
      ],
      systemActions: const {
        MediaAction.seek,
        MediaAction.seekForward,
        MediaAction.seekBackward,
      },
      androidCompactActionIndices: const [0, 1, 3],
      processingState: const {
        ProcessingState.idle: AudioProcessingState.idle,
        ProcessingState.loading: AudioProcessingState.loading,
        ProcessingState.buffering: AudioProcessingState.buffering,
        ProcessingState.ready: AudioProcessingState.ready,
        ProcessingState.completed: AudioProcessingState.completed,
      }[_player.processingState]!,
      playing: _player.playing,
      updatePosition: _player.position,
      bufferedPosition: _player.bufferedPosition,
      speed: _player.speed,
      queueIndex: event.currentIndex,
       );

  }

  Duration lastFileDuration = Duration.zero;
  void setLastFileDuration(Duration fileDuration) {
    //TODO: maybe required in future.
    lastFileDuration = fileDuration;
    notifyListeners();
  }
}

main.dart（初始化音频处理器部分）

Future<void> initAudioHandler(BuildContext context) async {

    var handler = await AudioService.init(
      builder: () => AudioPlayerHandlerMain(
         PlayingMediaItem.getDummyModel()
             ,context
      ),
      config: const AudioServiceConfig(
        androidNotificationChannelId: 'com.platform.untotheones',
        androidNotificationChannelName: 'Unto The One',
        androidNotificationOngoing: false,
        androidStopForegroundOnPause: true,

      ),
    );

    Provider.of<AudioPlayerHandlerMain>(context, listen: false).initAudioHandler(handler);

  }

}

内容的提问来源于stack exchange，提问作者Saffi Zahid

Android端just_audio播放30个音频后出现Audio Sink/Playback Error求助

错误日志 #

相关代码 #

audioHandler.dart #

main.dart（初始化音频处理器部分） #

错误日志

相关代码

audioHandler.dart

main.dart（初始化音频处理器部分）