我有一个简单的应用程序，它以启动画面 Activity 开始，该 Activity 在 VideoView 中播放 mp4 视频。视频播放完毕后，我正尝试通过 OnCompletionListener 启动新 Activity 。

当我启动应用程序时，视频效果很好；按预期播放声音和音频。视频播放完毕后，应用程序会显示标题为“无法播放视频”的对话框，并在按下“确定”按钮后正常继续。该问题似乎只在我将音频添加到我使用 Adob​​e After Effects 创建的 mp4 时出现。我使用了完全相同的视频减去音轨并且它不会引发此错误。我假设文件的编码没问题，因为它会在显示对话框之前完整播放。

这是我的代码:

public class Splash extends Activity {


 @Override  
 public void onCreate(Bundle savedInstanceState) {  

     super.onCreate(savedInstanceState);
     setContentView(R.layout.splash);

     Uri video = Uri.parse("android.resource://" + getPackageName() + "/" + R.raw.audio_intro); 

     VideoView videoview = (VideoView) findViewById(R.id.splash_view);
     videoview.setKeepScreenOn(true);  
     videoview.setVideoURI(video);

     videoview.setOnCompletionListener(new OnCompletionListener() {  
           public void onCompletion(MediaPlayer mp) {  
                 Intent intent = new Intent(Splash.this, Menu.class);
                 startActivity(intent);
                 finish();
           }
     });

     videoview.requestFocus();
     videoview.start();
 }

}

这是 LogCat 显示的内容:

06-30 14:49:33.095: V/MediaPlayer-JNI(21544): native_setup
06-30 14:49:33.095: V/MediaPlayer(21544): constructor
06-30 14:49:33.095: V/MediaPlayer(21544): setListener
06-30 14:49:33.095: I/MediaPlayer(21544): path is null
06-30 14:49:33.095: V/MediaPlayer-JNI(21544): setDataSourceFD: fd 54
06-30 14:49:33.095: V/MediaPlayer(21544): setDataSource(54, 2521, 173889)
06-30 14:49:33.110: V/MediaPlayer(21544): setVideoSurfaceTexture
06-30 14:49:33.110: V/MediaPlayer-JNI(21544): setAudioStreamType: 3
06-30 14:49:33.110: V/MediaPlayer(21544): MediaPlayer::setAudioStreamType
06-30 14:49:33.110: V/MediaPlayer(21544): setVideoSurfaceTexture
06-30 14:49:33.110: V/MediaPlayer(21544): prepareAsync
06-30 14:49:33.140: V/MediaPlayer(21544): message received msg=5, ext1=480, ext2=270
06-30 14:49:33.140: V/MediaPlayer(21544): New video size 480 x 270
06-30 14:49:33.140: V/MediaPlayer(21544): callback application
06-30 14:49:33.140: V/MediaPlayer(21544): back from callback
06-30 14:49:33.140: V/MediaPlayer(21544): message received msg=1, ext1=0, ext2=0
06-30 14:49:33.140: V/MediaPlayer(21544): prepared
06-30 14:49:33.140: V/MediaPlayer(21544): callback application
06-30 14:49:33.140: V/MediaPlayer(21544): back from callback
06-30 14:49:33.145: I/MediaPlayer(21544): mOnVideoSizeChangedListener. Send MEDIA_SET_VIDEO_SIZE message.
06-30 14:49:33.145: V/MediaPlayer(21544): getVideoWidth
06-30 14:49:33.145: V/MediaPlayer-JNI(21544): getVideoWidth: 480
06-30 14:49:33.145: V/MediaPlayer(21544): getVideoHeight
06-30 14:49:33.145: V/MediaPlayer-JNI(21544): getVideoHeight: 270
06-30 14:49:33.145: I/MediaPlayer(21544): mOnPreparedListener. Send MEDIA_PREPARED message.
06-30 14:49:33.145: D/MediaPlayer(21544): getMetadata
06-30 14:49:33.145: V/MediaPlayer(21544): getVideoWidth
06-30 14:49:33.145: V/MediaPlayer-JNI(21544): getVideoWidth: 480
06-30 14:49:33.145: V/MediaPlayer(21544): getVideoHeight
06-30 14:49:33.145: V/MediaPlayer-JNI(21544): getVideoHeight: 270
06-30 14:49:33.170: I/MediaPlayer(21544): sendBroadcast android.media.IMediaPlayer.videoexist
06-30 14:49:33.170: V/MediaPlayer-JNI(21544): start
06-30 14:49:33.170: V/MediaPlayer(21544): start
06-30 14:49:37.915: V/MediaPlayer(21544): message received msg=100, ext1=1, ext2=-1007
06-30 14:49:37.915: E/MediaPlayer(21544): error (1, -1007)
06-30 14:49:37.915: V/MediaPlayer(21544): callback application
06-30 14:49:37.915: V/MediaPlayer(21544): back from callback
06-30 14:49:37.915: E/MediaPlayer(21544): Error (1,-1007)
06-30 14:49:37.915: D/VideoView(21544): Error: 1,-1007

我希望有人能帮助我，因为我已经尝试了很多方法来解决这个问题，但似乎无法在任何地方找到提及/解决的类似问题。谢谢。

最佳答案

只是一个想法:我建议尝试使用视频转换器转换视频，例如http://www.wondershare.com/pro/media-converter.html ，(从 mp4)再次转换为 mp4，只是为了确保您获得的音频(和视频)符合 Android 支持的标准，如 http://developer.android.com/guide/appendix/media-formats.html#core 中所列。 .

关于java - 为什么我的 Android 应用程序在播放后显示 "Cannot play video"？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/11274640/