Android-媒体播放器与测试设备的流问题(Android- Mediaplayer stream

我现在有一个被赋予了流式传输的数据源媒体播放。我有两个测试设备：HTC霹雳和三星Galaxy SII扶摇直上。

HTC的设备能够流文件完全没有问题; 然而，GALAXY SII不能在所有的，并给了我一堆的媒体播放器错误代码。

我在执行相关的媒体播放器一切正常......但是，我不能让我解决这个问题的头...怎么来的，它会一个手机上运行而不是其他？其相同的链接。

有任何想法吗？从下面的设备日志。如果必要的，也是可以发布我的代码。

谢谢！

从HTC设备登录：

06-25 18:19:23.192: D/MainAudioService(23564): next song is: http://soundcloud.com/stopdroprave/chromeo-night-by-night/download/s-bpPu1
06-25 18:19:26.675: W/MediaPlayer(23564): info/warning (1, 902)
06-25 18:19:28.497: D/dalvikvm(23564): GC_EXTERNAL_ALLOC freed 515K, 50% free 3544K/7047K, external 477K/989K, paused 22ms
06-25 18:19:31.250: D/MainAudioService(23564): Song length in minutes is: -6:5
06-25 18:19:31.250: D/MediaPlayer(23564): start() in
06-25 18:19:31.250: D/MediaPlayer(23564): start() out
06-25 18:19:31.310: I/MediaPlayer(23564): Info (1,902)
06-25 18:19:31.310: D/MainAudioService(23564): On Info in MP: 1and 902
06-25 18:19:50.909: D/MediaPlayer(23564): stop() in
06-25 18:19:50.919: D/MediaPlayer(23564): stop() out
06-25 18:19:50.919: D/MediaPlayer(23564): reset() in
06-25 18:19:50.929: D/MediaPlayer(23564): reset() out
06-25 18:19:50.939: D/MainAudioService(23564): next song is: http://soundcloud.com/stopdroprave/subvibe-mizukis-last-chance/download/s-Jaezp
06-25 18:19:55.433: W/MediaPlayer(23564): info/warning (1, 902)
06-25 18:19:58.656: D/dalvikvm(23564): GC_EXTERNAL_ALLOC freed 503K, 57% free 3099K/7047K, external 1102K/1614K, paused 45ms
06-25 18:20:00.338: D/MainAudioService(23564): Song length in minutes is: -6:39
06-25 18:20:00.338: D/MediaPlayer(23564): start() in
06-25 18:20:00.338: D/MediaPlayer(23564): start() out
06-25 18:20:00.408: I/MediaPlayer(23564): Info (1,902)

从SGSII登录：

06-25 18:27:32.797: E/MediaPlayer(24277): stop called in state 0
06-25 18:27:32.797: E/MediaPlayer(24277): error (-38, 0)
06-25 18:27:32.807: D/MainAudioService(24277): next song is: http://soundcloud.com/stopdroprave/doctor-p-watch-out-crazes-locd/download/s-qQhJP
06-25 18:27:32.807: E/MediaPlayer-JNI(24277): setDataSource: outside path in JNI is �x@
06-25 18:27:33.498: E/MediaPlayer(24277): error (1, -2147483648)
06-25 18:27:33.498: E/MediaPlayer(24277): Error (1,-2147483648)
06-25 18:27:33.498: D/MainAudioService(24277): Error in MP: 1 and -2147483648
06-25 18:27:33.498: E/MediaPlayer(24277): stop called in state 0
06-25 18:27:33.498: E/MediaPlayer(24277): error (-38, 0)
06-25 18:27:33.508: D/MainAudioService(24277): next song is: http://soundcloud.com/stopdroprave/digitalism-circle-eric-prydz/download/s-XlYFv
06-25 18:27:33.508: E/MediaPlayer-JNI(24277): setDataSource: outside path in JNI is �x@
06-25 18:27:34.149: E/MediaPlayer(24277): error (1, -2147483648)
06-25 18:27:34.149: E/MediaPlayer(24277): Error (1,-2147483648)
06-25 18:27:34.149: D/MainAudioService(24277): Error in MP: 1 and -2147483648

编辑：

这里是我设置的数据源....

SdrPlaylist p = mPlaylist.get(currentNum);

            String path = p.songUrl;

            artistInfo = p.songName;
            nextSong = Toast.makeText(getApplicationContext(),
                    "Buffering Next Song...", Toast.LENGTH_LONG);
            nextSong.setGravity(Gravity.TOP, 0, 110);
            nextSong.show();

            try {
                Log.d(TAG, "next song is: " + path);

                mediaPlayer.setDataSource(path);

                mediaPlayer.prepareAsync();
            } catch (IllegalArgumentException e) {
                e.printStackTrace();
            } catch (IllegalStateException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }

Answer 1:

在对MediaPlayer的文档状态：

对于流，你应该叫prepareAsync（），它立即返回，而不是阻止，直到足够的数据已经被缓存。

所以我会试图着手行动。你需要使用OnPreparedListener，而不是调用start（）为您假设准备返回后完成的。

private MediaPlayer mp = new MediaPlayer();
mp.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
    @Override
    public void onPrepared(MediaPlayer arg0) {
        mp.start();

    }
});

mp.reset(); //<--- you probably shouldn't need this here.
mp.setDataSource(soundUri);
mp.prepareAsync();

你将得到保证不会被调用的MediaPlayer之前的start（）这样准备。

如果您仍然有在此之后改变我的下一个猜测的麻烦是，它是编解码器相关。 Android上的媒体播放是有点挑剔，这是流媒体千真万确。什么类型的文件，你想打？

Answer 2:

因为它似乎是你设置你的媒体播放器的数据源的问题，这里是应该怎么做：

private MediaPlayer mp = new MediaPlayer();
mp.reset();
mp.setDataSource(soundUri);
mp.prepare();
mp.start();

或者你可以在这里查看完整的答案： https://stackoverflow.com/a/9061259/1084764