NOTE: I'm not working at the company where I worked when I posted this question, therefore, even though some great answers might come in, I won't actually be testing them since I don't have a reason to (other than promoting the community; which might cause me to do it one day).
If however, some answer to the problem is promoted by many other comunity members, I might opt to select it as the correct answer for the problem experienced so many years after I originally posted the question.
In the meantime, I hope some of the answers may help some of you also experiencing this problem. Yay for Stack Overflow!
我们的应用程序必须从在线来源流式传输音乐(我无权透露该来源)。
为什么在 S3 上开始流式传输需要 2 多分钟？
我发现 Media Player 对象由于 MEDIA_ERROR_UNKOWN 而进入 错误状态 - 太好了。对我帮助不大。因此，在使用 OnErrorListener 处理 onError 时，我重置了媒体播放器对象，然后调用 startPlaying 来完成其余的工作 - 设置数据源等。
成员:
private ProgressBar playSeekBar;
private ImageView ivPlay;
private ImageView ivPause;
private ImageView ivBuffer;
private MediaPlayer mPlayer;
private ImageView ivInfo;
private AudioManager audio;
初始化媒体播放器(和 Visualizer - 这不是本问题的问题)
private void initialMediaPlayerAndVisualizer() {
Log.d(TAG, "Initial Media Player and Visualizer");
playSeekBar = (ProgressBar) findViewById(R.id.progressBar1);
playSeekBar.setMax(100);
playSeekBar.setVisibility(View.GONE);
mPlayer = new MediaPlayer();
Log.d(TAG, "Create onErrorListener");
MediaPlayer.OnErrorListener errorListener = new MediaPlayer.OnErrorListener() {
@Override
public boolean onError(MediaPlayer mp, int what, int extra) {
Log.d(TAG, "OnError - Error code: "+what+" Extra code: "+extra);
switch(what){
case -1004:
Log.d("Streaming Media", "MEDIA_ERROR_IO");
break;
case -1007:
Log.d("Streaming Media", "MEDIA_ERROR_MALFORMED");
break;
case 200:
Log.d("Streaming Media", "MEDIA_ERROR_NOT_VALID_FOR_PROGRESSIVE_PLAYBACK");
break;
case 100:
Log.d("Streaming Media", "MEDIA_ERROR_SERVER_DIED");
break;
case -110:
Log.d("Streaming Media", "MEDIA_ERROR_TIMED_OUT");
break;
case 1:
Log.d("Streaming Media", "MEDIA_ERROR_UNKNOWN");
break;
case -1010:
Log.d("Streaming Media", "MEDIA_ERROR_UNSUPPORTED");
break;
}
switch(extra){
case 800:
Log.d("Streaming Media", "MEDIA_INFO_BAD_INTERLEAVING");
break;
case 702:
Log.d("Streaming Media", "MEDIA_INFO_BUFFERING_END");
break;
case 701:
Log.d("Streaming Media", "MEDIA_INFO_METADATA_UPDATE");
break;
case 802:
Log.d("Streaming Media", "MEDIA_INFO_METADATA_UPDATE");
break;
case 801:
Log.d("Streaming Media", "MEDIA_INFO_NOT_SEEKABLE");
break;
case 1:
Log.d("Streaming Media", "MEDIA_INFO_UNKNOWN");
break;
case 3:
Log.d("Streaming Media", "MEDIA_INFO_VIDEO_RENDERING_START");
break;
case 700 :
Log.d("Streaming Media", "MEDIA_INFO_VIDEO_TRACK_LAGGING");
break;
}
Log.d("Streaming Media", "Reset media player");
mPlayer.reset();
// We need to link the visualizer view to the media player so that it displays something
mVisualizerManager = new VisualizerManager(context); //(VisualizerView) findViewById(R.id.visualizerView);
//Send the visualizerContainer to the Renderer
visualizerRenderer = new VisualizerRenderer(arrayVisualizer);
mVisualizerManager.addRenderer(visualizerRenderer);
try {
startPlaying();
} catch (IllegalStateException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return true;
}
};
Log.d(TAG, "Set error listener on Media Player object");
mPlayer.setOnErrorListener(errorListener);
// We need to link the visualizer view to the media player so that it displays something
mVisualizerManager = new VisualizerManager(context); //(VisualizerView) findViewById(R.id.visualizerView);
//Send the visualizerContainer to the Renderer
visualizerRenderer = new VisualizerRenderer(arrayVisualizer);
mVisualizerManager.addRenderer(visualizerRenderer);
try {
startPlaying();
} catch (IllegalStateException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
开始播放:
private void startPlaying () throws IllegalStateException, IOException, UnsupportedOperationException
{
if(mPlayer != null){
ivPause.setVisibility(View.INVISIBLE);
ivPlay.setVisibility(View.INVISIBLE);
ivBuffer.setVisibility(View.VISIBLE);
mVisualizerManager.link(mPlayer);
mPlayer.setOnBufferingUpdateListener(new OnBufferingUpdateListener() {
public void onBufferingUpdate(MediaPlayer mp, int percent) {
playSeekBar.setSecondaryProgress(percent);
Log.i("Buffering", "" + percent);
}
});
try {
mPlayer.setDataSource(theSource);
} catch (IllegalArgumentException e) {
Log.d(TAG, "Illegal Argument Exception: "+e);
e.printStackTrace();
} catch (IllegalStateException e) {
Log.d(TAG, "Illegal State Exception: "+e);
e.printStackTrace();
} catch (IOException e) {
Log.d(TAG, "IO Exception: "+e);
e.printStackTrace();
}
mPlayer.prepareAsync();
mPlayer.setOnPreparedListener(new OnPreparedListener() {
public void onPrepared(MediaPlayer mp) {
ivBuffer.setVisibility(View.INVISIBLE);
bars.setVisibility(View.INVISIBLE);
visualizerContainer.setVisibility(View.VISIBLE);
ivInfo.setImageResource(R.drawable.img_radio_info_online);
ivPause.setVisibility(View.VISIBLE);
ivPlay.setVisibility(View.INVISIBLE);
//Mute the video if the phone is muted.
if ((audio.getRingerMode() == AudioManager.RINGER_MODE_SILENT) || (audio.getRingerMode() == AudioManager.RINGER_MODE_VIBRATE)) {
mp.setVolume(0, 0);
Toast toast = Toast.makeText(context, R.string.device_muted, Toast.LENGTH_LONG);
toast.show();
}
mPlayer.start();
}
});
}else{
Log.d(TAG, "Media player is null.");
initialMediaPlayerAndVisualizer();
}
}
停止播放:
private void stopPlaying()
{
bars.setVisibility(View.VISIBLE);
visualizerContainer.setVisibility(View.INVISIBLE);
ivInfo.setImageResource(R.drawable.img_radio_info_offline);
ivPlay.setVisibility(View.VISIBLE);
ivPause.setVisibility(View.INVISIBLE);
mPlayer.stop();
mVisualizerManager.release();
mPlayer.release();
mPlayer = null;
}
一点日志:
05-21 16:26:23.600: I/Buffering(3921): 0
05-21 16:26:23.600: I/MediaPlayer(3921): Info (703,156)
05-21 16:26:23.600: I/MediaPlayer(3921): Info (701,0)
05-21 16:26:23.610: D/VisualizerRenderer(3921): Render columns
05-21 16:26:23.715: V/MediaPlayer(3921): message received msg=100, ext1=1, ext2=-110
05-21 16:26:23.715: E/MediaPlayer(3921): error (1, -110)
05-21 16:26:23.715: V/MediaPlayer(3921): callback application
05-21 16:26:23.715: V/MediaPlayer(3921): back from callback
05-21 16:26:23.725: D/VisualizerRenderer(3921): Render columns
05-21 16:26:23.725: E/MediaPlayer(3921): Error (1,-110)
05-21 16:26:23.725: D/MAIN(3921): OnError - Error code: 1 Extra code: -110
05-21 16:26:23.725: D/Streaming Media(3921): MEDIA_ERROR_UNKNOWN
05-21 16:26:23.725: D/Streaming Media(3921): Reset media player
05-21 16:26:23.725: V/MediaPlayer-JNI(3921): reset
05-21 16:26:23.725: V/MediaPlayer(3921): reset
05-21 16:26:23.730: D/VisualizerRenderer(3921): Divisions: 9
05-21 16:26:23.730: D/VisualizerManager(3921): Added te renderer
05-21 16:26:23.730: V/MediaPlayer-JNI(3921): get_session_id()
05-21 16:26:23.735: D/VisualizerManager(3921): Media player and visualizer linked
05-21 16:26:23.735: D/VisualizerManager(3921): Set capture listener
05-21 16:26:23.735: D/VisualizerManager(3921): Set on visualizer complete listener
05-21 16:26:23.740: V/MediaPlayer(3921): setVideoSurfaceTexture
05-21 16:26:23.740: V/MediaPlayer(3921): prepareAsync
05-21 16:26:25.285: V/MediaPlayer(3921): message received msg=3, ext1=0, ext2=0
05-21 16:26:25.285: V/MediaPlayer(3921): buffering 0
05-21 16:26:25.285: V/MediaPlayer(3921): callback application
05-21 16:26:25.285: V/MediaPlayer(3921): back from callback
05-21 16:26:25.330: I/Buffering(3921): 0
05-21 16:26:25.390: V/MediaPlayer(3921): message received msg=3, ext1=0, ext2=0
05-21 16:26:25.390: V/MediaPlayer(3921): buffering 0
05-21 16:26:25.390: V/MediaPlayer(3921): callback application
05-21 16:26:25.390: V/MediaPlayer(3921): back from callback
05-21 16:26:25.425: I/Buffering(3921): 0
05-21 16:26:25.490: V/MediaPlayer(3921): message received msg=3, ext1=0, ext2=0
05-21 16:26:25.490: V/MediaPlayer(3921): buffering 0
05-21 16:26:25.490: V/MediaPlayer(3921): callback application
05-21 16:26:25.490: V/MediaPlayer(3921): back from callback
...
05-21 16:26:52.585: I/Buffering(3921): 0
05-21 16:26:53.570: V/MediaPlayer(3921): message received msg=3, ext1=0, ext2=0
05-21 16:26:53.570: V/MediaPlayer(3921): buffering 0
05-21 16:26:53.570: V/MediaPlayer(3921): callback application
05-21 16:26:53.570: V/MediaPlayer(3921): back from callback
05-21 16:26:53.585: I/Buffering(3921): 0
05-21 16:26:54.570: V/MediaPlayer(3921): message received msg=3, ext1=0, ext2=0
05-21 16:26:54.570: V/MediaPlayer(3921): buffering 0
05-21 16:26:54.570: V/MediaPlayer(3921): callback application
05-21 16:26:54.570: V/MediaPlayer(3921): back from callback
05-21 16:26:54.570: V/MediaPlayer(3921): message received msg=200, ext1=702, ext2=0
05-21 16:26:54.570: W/MediaPlayer(3921): info/warning (702, 0)
05-21 16:26:54.570: V/MediaPlayer(3921): callback application
05-21 16:26:54.570: V/MediaPlayer(3921): back from callback
05-21 16:26:54.590: I/Buffering(3921): 0
05-21 16:26:54.590: I/MediaPlayer(3921): Info (702,0)
05-21 16:26:55.575: V/MediaPlayer(3921): message received msg=3, ext1=0, ext2=0
05-21 16:26:55.575: V/MediaPlayer(3921): buffering 0
05-21 16:26:55.575: V/MediaPlayer(3921): callback application
05-21 16:26:55.575: V/MediaPlayer(3921): back from callback
05-21 16:26:55.575: I/Buffering(3921): 0
05-21 16:26:56.575: V/MediaPlayer(3921): message received msg=3, ext1=0, ext2=0
05-21 16:26:56.575: V/MediaPlayer(3921): buffering 0
05-21 16:26:56.575: V/MediaPlayer(3921): callback application
05-21 16:26:56.575: V/MediaPlayer(3921): back from callback
05-21 16:26:56.585: I/Buffering(3921): 0
05-21 16:26:57.575: V/MediaPlayer(3921): message received msg=3, ext1=0, ext2=0
05-21 16:26:57.575: V/MediaPlayer(3921): buffering 0
05-21 16:26:57.575: V/MediaPlayer(3921): callback application
05-21 16:26:57.575: V/MediaPlayer(3921): back from callback
05-21 16:26:57.600: I/Buffering(3921): 0
05-21 16:26:57.930: V/MediaPlayer-JNI(3921): stop
05-21 16:26:57.930: V/MediaPlayer(3921): stop
05-21 16:26:57.930: D/VisualizerManager(3921): Released the visualizer
05-21 16:26:57.930: V/MediaPlayer-JNI(3921): release
05-21 16:26:57.930: V/MediaPlayer(3921): setListener
05-21 16:26:57.930: V/MediaPlayer(3921): disconnect
05-21 16:26:57.935: V/MediaPlayer(3921): destructor
05-21 16:26:57.935: V/MediaPlayer(3921): disconnect
最佳答案
这个问题的答案原来是安装在运行 Android 4.1.2 的三星 S III 设备上的 Android 固件问题。
这似乎与流的来源有关，因为某些来源最终在设备上播放，但我们需要的那个从未播放过。
如果您可以从其他来源获取流，它应该可以工作。
因此，如果您正在为特定公司/目的开发应用程序并且对流的源有一定的控制权，或者可以与控制流源的人进行通信，请让他们更改流的源流到可以在运行 Android 4.1.2 的三星 S III 上运行的东西。
除此之外，所有能解决这个问题的都是固件升级。
关于android - MediaPlayer 错误 (1, -1004) aka MEDIA_ERROR_IO 试图在三星 S3 上流式传输音乐，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/16672568/
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