我在Galaxy Tab上播放流媒体音频时遇到了一些问题（适用于HTC Desire HD和Nexus One）。当我创建MediaPlayer对象时，它会产生如下错误：
02-09 02:21:39.088: VERBOSE/MediaPlayer-JNI(9325): native_setup
02-09 02:21:39.088: VERBOSE/MediaPlayer(9325): constructor
02-09 02:21:39.088: VERBOSE/MediaPlayer(9325): setListener
02-09 02:21:39.092: INFO/MediaPlayer(9325): uri is:http://147.83.39.86:3200/osgi/files/TTS/1297185775715.ogg
02-09 02:21:39.092: INFO/MediaPlayer(9325): path is null
02-09 02:21:39.092: DEBUG/MediaPlayer(9325): Couldn't open file on client side, trying server side
02-09 02:21:39.092: VERBOSE/MediaPlayer-JNI(9325): setDataSource: path http://147.83.39.86:3200/osgi/files/TTS/1297185775715.ogg
02-09 02:21:39.092: VERBOSE/MediaPlayer(9325): setDataSource(http://147.83.39.86:3200/osgi/files/TTS/1297185775715.ogg)
02-09 02:21:39.092: ERROR/MediaPlayerService(2392): Failed to create player object
02-09 02:21:39.092: ERROR/MediaPlayer(9325): Unable to to create media player
02-09 02:21:39.104: DEBUG/MediaPlayer(9325): create failed:
02-09 02:21:39.104: DEBUG/MediaPlayer(9325): java.io.IOException: setDataSource failed.: status=0x80000000
02-09 02:21:39.104: DEBUG/MediaPlayer(9325): at android.media.MediaPlayer.setDataSource(Native Method)
02-09 02:21:39.104: DEBUG/MediaPlayer(9325): at android.media.MediaPlayer.setDataSource(MediaPlayer.java:745)
02-09 02:21:39.104: DEBUG/MediaPlayer(9325): at android.media.MediaPlayer.setDataSource(MediaPlayer.java:675)
02-09 02:21:39.104: DEBUG/MediaPlayer(9325): at android.media.MediaPlayer.create(MediaPlayer.java:611)
02-09 02:21:39.104: DEBUG/MediaPlayer(9325): at android.media.MediaPlayer.create(MediaPlayer.java:592)
02-09 02:21:39.104: DEBUG/MediaPlayer(9325): at com.vodafone.inredis.movil.interfazweb.InredisWebViewClient.shouldOverrideUrlLoading(InredisWebViewClient.java:37)
这就是我创建MediaPlayer对象的方式，没什么奇怪的：
Uri tempPath = Uri.parse(url);
player = MediaPlayer.create(interfazWeb, tempPath);
if (player != null){
player.start();
} else {
Log.e(TAG, "No se puede abrir el audio:" + url);
}
return true;
为了提供更多信息，我可以说我测试了传递的网址，我可以使用本机浏览器下载并正常播放。显然我可以用桌面浏览器播放它。
anyboedy是否在使用上述设备时遇到过这个问题？
提前致谢。
########编辑##############我还没有解决这个问题，但我一直在研究，现在我在一个单独的线程中下载文件，将其保存到临时文件并使用MediaPlayer打开。它会产生另一种错误，我怀疑文件夹和权限，但我还不确定。
所以现在我有那些我可以和Galaxy的原生播放器一起玩的临时文件，但不是我在我的代码中创建的那个，以及不同的日志跟踪，这没有给我提示。
02-10 01:36:36.945: VERBOSE/MediaPlayer-JNI(8371): native_setup
02-10 01:36:36.945: VERBOSE/MediaPlayer(8371): constructor
02-10 01:36:36.945: VERBOSE/MediaPlayer(8371): setListener
02-10 01:36:36.948: VERBOSE/MediaPlayer-JNI(8371): setDataSource: path /sdcard/audioTmp360988.ogg
02-10 01:36:36.948: VERBOSE/MediaPlayer(8371): setDataSource(/sdcard/audioTmp360988.ogg)
02-10 01:36:36.952: VERBOSE/MediaPlayer(8371): prepare
02-10 01:36:36.952: ERROR/MediaPlayerService(2394): Client::notify In
02-10 01:36:36.952: ERROR/MediaPlayer(8371): message received msg=1, ext1=0, ext2=0
02-10 01:36:36.952: VERBOSE/MediaPlayer(8371): prepared
02-10 01:36:36.952: VERBOSE/MediaPlayer(8371): signal application thread
02-10 01:36:36.952: ERROR/MediaPlayer(8371): callback application
02-10 01:36:36.952: ERROR/MediaPlayer(8371): back from callback
02-10 01:36:36.952: VERBOSE/MediaPlayer(8371): prepare complete - status=0
02-10 01:36:41.437: VERBOSE/MediaPlayer-JNI(8371): native_finalize
02-10 01:36:41.437: VERBOSE/MediaPlayer-JNI(8371): release
02-10 01:36:41.437: VERBOSE/MediaPlayer(8371): setListener
02-10 01:36:41.437: VERBOSE/MediaPlayer(8371): disconnect
02-10 01:36:41.437: VERBOSE/MediaPlayer(8371): destructor
02-10 01:36:41.437: VERBOSE/MediaPlayer(8371): disconnect
来吧，我不可能是唯一的一个！
答案 0 :(得分：3)
使用MediaPlayer的WAV和OGG Audio Streaming在Samsung Galaxy TAB（使用FroYo）上不起作用。我一直在测试，我使用了API演示（8），特别是/Demos/src/com/example/android/apis/media/MediaPlayerDemo_Audio.java的这段代码：
private void playAudio(Integer media) {
try {
switch (media) {
case LOCAL_AUDIO:
/**
* TODO: Set the path variable to a local audio file path.
*/
// path = "http://upload.wikimedia.org/wikipedia/commons/a/a9/Tromboon-sample.ogg";
// path = "http://www.robtowns.com/music/blind_willie.mp3";
path = "http://www.nch.com.au/acm/8k16bitpcm.wav";
if (path == "") {
// Tell the user to provide an audio file URL.
Toast
.makeText(
MediaPlayerDemo_Audio.this,
"Please edit MediaPlayer_Audio Activity, "
+ "and set the path variable to your audio file path."
+ " Your audio file must be stored on sdcard.",
Toast.LENGTH_LONG).show();
}
mMediaPlayer = new MediaPlayer();
Uri tempUri = Uri.parse(path);
try {
mMediaPlayer.setDataSource(this, tempUri);
}
catch (IllegalStateException e) {
Log.d(TAG, "IllegalStateException: " + e.getMessage());
}
catch (IOException e) {
Log.d(TAG, "IOException: " + e.getMessage());
}
catch (IllegalArgumentException e) {
Log.d(TAG, "IllegalArgumentException: " + e.getMessage());
}
catch (SecurityException e) {
Log.d(TAG, "SecurityException: " + e.getMessage());
}
mMediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
mMediaPlayer.prepare();
mMediaPlayer.start();
break;
case RESOURCES_AUDIO:
/**
* TODO: Upload a audio file to res/raw folder and provide
* its resid in MediaPlayer.create() method.
*/
mMediaPlayer = MediaPlayer.create(this, R.raw.test_cbr);
mMediaPlayer.start();
}
tx.setText("Playing audio...");
} catch (Exception e) {
Log.e(TAG, "error: " + e.getMessage(), e);
}
}
我刚刚更改了定义要播放的文件路径的3行，以及项目中的其他任何内容。好吧，只有Mp3文件可以播放，WAV和OGG都会产生和异常类似于我的问题。
还有其他人想尝试吗？我应该假设有错误吗？
答案 1 :(得分：0)
我的音频文件用AudioEncoder.AMR_NB编码，该文件可以在3G上播放，但不能在Wifi中播放，Mp3文件可以全部播放。所以我猜文件格式会影响结果。