Mediaplayer错误(-38,0)，在状态4中调用了停止。

Question

结果是，前两首歌曲播放良好，但其他歌曲都没有播放，最后一首歌曲也几乎没有播放！

播放流的代码（它可以工作）：

    private void PlayStream(String url)
{
    try 
    {
        mediaPlayer.setDataSource(url);
    }
    catch (IllegalArgumentException e) 
    {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    catch (SecurityException e) 
    {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    catch (IllegalStateException e) 
    {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }
    catch (IOException e) 
    {
        //  TODO Auto-generated catch block
        e.printStackTrace();
    }

    mediaPlayer.setOnPreparedListener(Canzone.this);

    try 
    {
        mediaPlayer.prepareAsync();
    }
    catch (IllegalStateException e) 
    {
        // TODO Auto-generated catch block
        e.printStackTrace();
    }               

    progressBar.setVisibility(ProgressBar.VISIBLE);
    progressBar.setProgress(0);
    progressBar.setMax(duration);

    new Thread(this).start();
}

SETONCOMPLETELISTENER的规范：

mediaPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() 
    {   
        @Override
        public void onCompletion(MediaPlayer mp) 
        {
            i++;

            if(i<10)
            {   
                classifica.setText("Canzoni riprodotte: "+String.valueOf(i+1)+"/10 \nPunteggio: "+punteggio);

                mp.stop();  
                Log.d("MPLAY", "MP Stopped");

                mp.reset();
                Log.d("MPLAY", "MP Reset");

                PlayStream(dieciCanzoni.get(i).get(0));

                tv.setText(dieciCanzoni.get(i-1).get(1) + "\n" + dieciCanzoni.get(i-1).get(2));

                new DownloadImageTask((ImageView) findViewById(R.id.albumImage)).execute(dieciCanzoni.get(i-1).get(4));

                iv.setOnClickListener(new View.OnClickListener() 
                {       
                    @Override
                    public void onClick(View v) 
                    {
                        Intent intent = new Intent(Intent.ACTION_VIEW,Uri.parse(dieciCanzoni.get(i-1).get(3)));
                        startActivity(intent);
                    }
                });
            }
            else
            {
                FineRound();
            }
        }
    });

日志记录：

11-13 19:42:47.835: D/MPLAY(1981): MP Started 
11-13 19:43:17.915: D/MPLAY(1981): MP Stopped
11-13 19:43:17.935: D/MPLAY(1981): MP Reset
11-13 19:43:17.940: E/MediaPlayer(1981): error (-38, 0)
11-13 19:43:17.990: E/MediaPlayer(1981): Error (-38,0)
11-13 19:43:17.990: E/MediaPlayer(1981): stop called in state 4
11-13 19:43:17.995: E/MediaPlayer(1981): error (-38, 0)
11-13 19:43:17.995: D/MPLAY(1981): MP Stopped
11-13 19:43:18.235: D/MPLAY(1981): MP Reset
11-13 19:43:18.235: E/MediaPlayer(1981): error (-38, 0)
11-13 19:43:18.270: E/MediaPlayer(1981): Error (-38,0)
11-13 19:43:18.285: E/MediaPlayer(1981): stop called in state 4
11-13 19:43:18.285: E/MediaPlayer(1981): error (-38, 0)
11-13 19:43:18.295: D/MPLAY(1981): MP Stopped
11-13 19:43:18.450: D/MPLAY(1981): MP Reset
11-13 19:43:18.450: E/MediaPlayer(1981): error (-38, 0)
11-13 19:43:18.470: E/MediaPlayer(1981): Error (-38,0)
11-13 19:43:18.475: E/MediaPlayer(1981): stop called in state 4
11-13 19:43:18.475: E/MediaPlayer(1981): error (-38, 0)
11-13 19:43:18.475: D/MPLAY(1981): MP Stopped
11-13 19:43:18.690: D/MPLAY(1981): MP Reset
11-13 19:43:18.690: E/MediaPlayer(1981): error (-38, 0)
11-13 19:43:18.735: E/MediaPlayer(1981): Error (-38,0)
11-13 19:43:18.735: E/MediaPlayer(1981): stop called in state 4
11-13 19:43:18.740: E/MediaPlayer(1981): error (-38, 0)
11-13 19:43:18.740: D/MPLAY(1981): MP Stopped
11-13 19:43:19.105: D/MPLAY(1981): MP Reset
11-13 19:43:19.105: E/MediaPlayer(1981): error (-38, 0)
11-13 19:43:19.185: E/MediaPlayer(1981): Error (-38,0)
11-13 19:43:19.185: E/MediaPlayer(1981): stop called in state 4
11-13 19:43:19.190: E/MediaPlayer(1981): error (-38, 0)
11-13 19:43:19.190: D/MPLAY(1981): MP Stopped
11-13 19:43:19.680: D/MPLAY(1981): MP Reset
11-13 19:43:19.680: E/MediaPlayer(1981): error (-38, 0)
11-13 19:43:19.780: E/MediaPlayer(1981): Error (-38,0)
11-13 19:43:19.800: E/MediaPlayer(1981): stop called in state 4
11-13 19:43:19.800: E/MediaPlayer(1981): error (-38, 0)
11-13 19:43:19.800: D/MPLAY(1981): MP Stopped
11-13 19:43:20.010: D/MPLAY(1981): MP Reset
11-13 19:43:20.015: E/MediaPlayer(1981): error (-38, 0)
11-13 19:43:20.130: E/MediaPlayer(1981): Error (-38,0)
11-13 19:43:20.130: E/MediaPlayer(1981): stop called in state 4
11-13 19:43:20.135: E/MediaPlayer(1981): error (-38, 0)
11-13 19:43:20.135: D/MPLAY(1981): MP Stopped
11-13 19:43:20.330: D/MPLAY(1981): MP Reset
11-13 19:43:20.330: E/MediaPlayer(1981): error (-38, 0)
11-13 19:43:20.365: E/MediaPlayer(1981): Error (-38,0)
11-13 19:43:22.105: D/MPLAY(1981): MP Started
11-13 19:43:25.590: W/IInputConnectionWrapper(1981): showStatusIcon on inactive InputConnection
11-13 19:43:25.615: D/OpenGLRenderer(1981): Flushing caches (mode 0)
11-13 19:43:26.140: D/OpenGLRenderer(1981): Flushing caches (mode 1)

- The Condor

---

你解决了吗？ - Shobhit Puri

Answer 1

是的，我可以随时提供帮助。我也遇到过这个错误，我的解决方案是检查 Android 媒体播放器接收路径。因此，要执行此操作，请粘贴以下代码：

Log.d("MediaPlayer Datasource" , "The datasource is: " + url);

检查URL是否正确且包含扩展名。确保它没有受到域的保护。

如果一切正常，请粘贴此代码：

mp.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
    @Override
    public void onPrepared(MediaPlayer mp) {
        // TODO Auto-generated method stub

        mediaPlayer.start();

    }
});

我知道你们已经有一个了，但也许它不起作用。

- tim687

Answer 2

使用3GP视频文件，它会正常工作...

- Teraiya Mayur