我试图用MediaPlayer播放音频文件。我想在MediaPlayer中播放字节数组。我怎样才能做到这一点?我查过this在MediaPlayer中播放字节数组 - Android
public void writeSamples(byte[] samples, int length)
{
// track.write(samples, 0, length);
File tempMp3;
try {
tempMp3 = File.createTempFile("kurchina", ".mp3");
tempMp3.deleteOnExit();
FileOutputStream fos = new FileOutputStream(tempMp3);
fos.write(samples);
fos.close();
// Tried reusing instance of media player
// but that resulted in system crashes...
MediaPlayer mediaPlayer = new MediaPlayer();
// Tried passing path directly, but kept getting
// "Prepare failed.: status=0x1"
// so using file descriptor instead
FileInputStream fis = new FileInputStream(tempMp3);
mediaPlayer.setDataSource(fis.getFD());
mediaPlayer.prepare();
mediaPlayer.start();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
但它没有播放音频。它只是在SD卡中生成许多文件。并给这个错误:
06-06 11:02:59.191: E/MediaPlayer(1831): Unable to to create media player
06-06 11:02:59.191: W/System.err(1831): java.io.IOException: setDataSourceFD failed.: status=0x80000000
06-06 11:02:59.201: W/System.err(1831): at android.media.MediaPlayer.setDataSource(Native Method)
06-06 11:02:59.201: W/System.err(1831): at android.media.MediaPlayer.setDataSource(MediaPlayer.java:749)
06-06 11:02:59.201: W/System.err(1831): at org.vinuxproject.sonic.SonicTest$1.run(SonicTest.java:178)
06-06 11:02:59.201: W/System.err(1831): at java.lang.Thread.run(Thread.java:1096)
请帮助我。任何形式的帮助表示赞赏。
谢谢
添加您的代码片段在这里,有人将能够提供帮助。 –
我建议尝试setDataSource变体,除FD外还需要一个偏移量和长度。生成的mp3文件是否在音乐应用程序中播放?另外,deleteOnExit在Android/Dalvik中没有用处。 – dagalpin
没有文件不在我的应用程序中播放。请帮助我 –