Android VideoView Can't play video error 特别是.mp4

Question

我正在尝试在我的应用程序中播放视频，但出现无法播放此视频错误。我遇到了很多关于这个的话题。他们要求在播放器准备好后开始播放视频。我也在做同样的事情。但无法弄清楚问题所在。请在下面找到我的代码。

public class Video extends Activity implements MediaPlayer.OnPreparedListener, MediaPlayer.OnErrorListener {

public VideoView vidPlayer;

@Override
protected void onCreate(Bundle savedInstanceState) {

    setup();
    activateVideoPlayer();
}

public void setup() {
    setContentView(R.layout.step_video);        
    vidPlayer = (VideoView) findViewById(R.id.videoPlayer);
    String playableUrl = "http://teststreaming7v.s3.amazonaws.com/public/7515/1374782317346-beagle_puppy_howl_640x360_448_main.mp4";

}

@Override
public void onPrepared(final MediaPlayer mediaPlayer) {
    mediaPlayer.setLooping(false);
    mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
        startPlayer();
    videoLoaded = true;
    mediaPlayer.setOnBufferingUpdateListener(new MediaPlayer.OnBufferingUpdateListener() {
        // show updated information about the buffering progress
        public void onBufferingUpdate(MediaPlayer mp, int percent) {
            Log.d(this.getClass().getName(), "percent: " + percent);

        }
    });

    mediaPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {

        public void onCompletion(MediaPlayer mediaPlayer) {
            progress.setProgress(100);
                    setResult(Activity.RESULT_OK);
                    finish();
        }
    });

    readyToPlay = true;
}

@Override
public void onConfigurationChanged(Configuration newConfig) {
    super.onConfigurationChanged(newConfig);
}

@Override
public void onPause() {
    super.onPause();
    pausePlayer();
}

@Override
public void finish() {
    super.finish();
    overridePendingTransition(R.anim.engagement_fade_in, R.anim.engagement_fade_out);
}

@Override
public void onBackPressed() {
    isGoingBack = true;
    setResult(Activity.RESULT_CANCELED);
    finish();
}

@Override
public boolean onError(MediaPlayer mediaPlayer, int i, int i1) {
    JLogger.getInstance(this).log("Video Player Error!!" + Integer.toString(i) + " / " + Integer.toString(i1));

    return false;
}

public void startPlayer() {
    isPaused = false;
    vidPlayer.start();
}

public void pausePlayer() {
    isPaused = true;
        vidPlayer.pause();
}

private void activateVideoPlayer() {
    vidPlayer.setOnErrorListener(this);
    vidPlayer.setOnPreparedListener(this);

    btnPlay.setOnClickListener(new View.OnClickListener() {
        public void onClick(View view) {
            if (vidPlayer.isPlaying()) {
                pausePlayer();
            } else {
                startPlayer();
            }
        }
    });

    vidPlayer.setVideoURI(Uri.parse(playableUrl));
    vidPlayer.seekTo(step.resumePosition);
}
}

我使用的设备是 Motorola Atrix - Android 4.1.2 - Unlocked。 我还尝试过其他设备，如 Nexus 4、5 和 Samasung Tab 2。它在那里工作正常。

这是我的日志：

12-16 13:42:35.184    4427-4427/? D/MediaPlayer﹕ Couldn't open file on client side,trying server side
12-16 13:42:35.184    1417-1830/? I/AwesomePlayer﹕ setDataSource_l('http://teststreaming7v.s3.amazonaws.com/public/7515/1374782317346-beagle_puppy_howl_640x360_448_main.mp4')
12-16 13:42:35.184    1417-5481/? V/ChromiumHTTPDataSource﹕ connect on behalf of uid 10069
12-16 13:42:35.184    1417-5481/? I/ChromiumHTTPDataSource﹕ connect to http://teststreaming7v.s3.amazonaws.com/public/7515/1374782317346-beagle_puppy_howl_640x360_448_main.mp4 @0
12-16 13:42:35.684    1424-1673/? I/﹕ odm_disp_esd_thread is running(467) state=1
12-16 13:42:35.684    1417-5481/? W/WVMExtractor﹕ Failed to open libwvm.so
12-16 13:42:36.184    4547-4576/? W/GAV2﹕ Thread[GAThread,5,main]: Exception sending hit: HttpHostConnectException
12-16 13:42:36.184    4547-4576/? W/GAV2﹕ Thread[GAThread,5,main]: Connection to https://ssl.google-analytics.com refused
12-16 13:42:36.184    1417-5481/? E/OMXCodec﹕ failed to allocate node OMX.Nvidia.h264.decode
12-16 13:42:36.184    1417-5481/? E/OMXCodec﹕ failed to allocate node OMX.google.h264.decode
12-16 13:42:36.184    1417-5481/? I/OMXCodec﹕ [OMX.google.h264.decoder] AVC profile = 77 (Main), level = 22
12-16 13:42:36.184    1417-5481/? I/OMXCodec﹕ [OMX.google.h264.decoder] video dimensions are 320 x 240
12-16 13:42:36.184    1417-5481/? I/OMXCodec﹕ [OMX.google.h264.decoder] Crop rect is 320 x 240 @ (0, 0)
12-16 13:42:37.184    4427-4427/? D/MediaPlayer﹕ getMetadata
12-16 13:42:37.184    4427-4427/? D/VideoSample﹕ onPrepared() method
12-16 13:42:37.184    1417-1687/? D/AudioHardwareMot﹕ bufSize = 8192
12-16 13:42:37.184    1417-5484/? E/SoftAVC﹕ Decoder failed: -2
12-16 13:42:37.184    1417-5485/? E/OMXCodec﹕ [OMX.google.h264.decoder] ERROR(0x80001001, -1007)
12-16 13:42:37.184    1417-5486/? I/SoftAAC2﹕ Reconfiguring decoder: 44100 Hz, 2 channels
12-16 13:42:37.184    4427-4449/? E/MediaPlayer﹕ error (1, -2147483648)
12-16 13:42:37.184    1692-2165/? D/dalvikvm﹕ GC_EXPLICIT freed 113K, 39% free 8906K/14467K, paused 3ms+5ms, total 93ms
12-16 13:42:37.184    4427-4427/? E/MediaPlayer﹕ start called in state 0
12-16 13:42:37.184    4427-4427/? E/MediaPlayer﹕ error (-38, 0)
12-16 13:42:37.184    4427-4427/? E/MediaPlayer﹕ Error (1,-2147483648)
12-16 13:42:37.184    4427-4427/? D/VideoView﹕ Error: 1,-2147483648
12-16 13:42:37.184    4427-4427/? D/VideoSample﹕ VideoSample: Video Player Error!!1 / -2147483648
12-16 13:42:37.184    4427-4427/? D/VideoSample﹕ VideoSample: Get url:    http://teststreaming7v.s3.amazonaws.com/public/7515/1374782317346-beagle_puppy_howl_640x360_448_main.mp4
12-16 13:42:37.184    4427-4427/? E/MediaPlayer﹕ Error (-38,0)
12-16 13:42:37.184    4427-4427/? D/VideoView﹕ Error: -38,0
12-16 13:42:37.184    4427-4427/? D/VideoSample﹕ VideoSample: Video Player Error!!-38 / 0
12-16 13:42:37.184    4427-4427/? D/VideoSample﹕ VideoSample: Get url: http://teststreaming7v.s3.amazonaws.com/public/7515/1374782317346-beagle_puppy_howl_640x360_448_main.mp4`

编辑 1

我尝试播放以下两个 .mp4 文件，其中第一个播放，第二个不播放。

视频 1 属性
网址：Video URL
视频比特率：179.9 kbits/sec
音频通道：立体声

视频 2 属性 网址：Video URL
视频比特率：446.9 kbits/sec
音频通道：单声道

Answer 1

问题在于第二个视频不在 H.264 AVC 基线配置文件中。

Answer 2

我认识一个刚遇到这个问题的人，同样是 MP4 视频，问题不在于代码，而在于视频本身，与每秒帧数有关，试试其他视频，你知道的那些都是完美的制作