android - 无法在我的 Android 应用程序中播放 mp4 视频

Question

我非常想在我的 android 应用程序中播放 mp4 视频。我什至为它写了一些代码:

String sourceUrl = "http://tvstream.cn.ru/storage/1kanal/20120530/"
       + "1kanal-20120530-01-14-00-20120530-03-16-00.mp4";

final VideoView videoView = (VideoView) findViewById(R.id.videoView);
getWindow().setFormat(PixelFormat.TRANSLUCENT);

final MediaController mediaController = new MediaController(this);
mediaController.setMediaPlayer(videoView);
videoView.setMediaController(mediaController);
videoView.setVideoURI(Uri.parse(sourceUrl));

videoView.setOnPreparedListener(new OnPreparedListener() {

    public void onPrepared(MediaPlayer mp) {
        videoView.requestFocus();
        videoView.start();
        mediaController.show();
    }
});

但没有任何效果 :( 当我在模拟器 (Android 2.3.3) 中启动我的应用程序时，我得到了带有一些常见错误代码的奇怪堆栈跟踪:

经过几个小时的谷歌搜索和实验后，我决定尝试在真实设备上启动我的应用程序并观看 logcat:

D/test.tv.activity.PlayerActivity( 3428): Player source: http://tvstream.cn.ru/storage/1kanal/20120530/1kanal-20120530-01-14-00-20120530-03-16-00.mp4
D/VideoView( 3428): onMeasure()
I/VideoView( 3428):     Setting size: 320x430
I/Launcher(  260): onWindowFocusChanged(false)
D/Launcher(  260): setWallpaperDimension() called
D/Launcher(  260): USE_NON_SCROLLABLE_IMAGE_WALLPAPER is true
I/ActivityManager(  163): Start proc org.reactivephone for broadcast org.reactivephone/ru.yandex.common.clid.ClidBroadcastReceiver: pid=3448 uid=10073 gids={1015, 3003}
I/ActivityManager(  163): No longer want com.sec.android.provider.badge (pid 2310): hidden #16
I/MediaPlayer( 3428): uri is:http://tvstream.cn.ru/storage/1kanal/20120530/1kanal-20120530-01-14-00-20120530-03-16-00.mp4
I/MediaPlayer( 3428): path is null
D/MediaPlayer( 3428): Couldn't open file on client side, trying server side
D/Launcher(  260): It's image wallpaper. suggestDesiredDimensions(-1,-1)
I/ActivityManager(  163): Displayed test.tv/.activity.PlayerActivity: +943ms
D/VideoView( 3428): onMeasure()
I/VideoView( 3428):     Setting size: 320x430
W/dalvikvm( 3406): threadid=5: spin on suspend #1 threadid=22 (pcf=0)
W/dalvikvm( 3406): threadid=5: spin on suspend resolved in 1154 msec
W/SearchableInfo(  163): Invalid searchable metadata for org.reactivephone/.ui.RegionForm: Search label must be a resource reference.
I/ActivityManager(  163): Start proc com.google.android.googlequicksearchbox for broadcast com.google.android.googlequicksearchbox/.SourceUpdateReceiver: pid=3457 uid=10027 gids={3003}
I/WindowOrientationListener(  163): orientation 295.6932 gives new rotation = 2
I/OrientationDebug(  163): [pwm] in MyOrientationListener.onOrientationChanged() rotation=3  mFancyRotationAnimation=0   now call mWindowManager.setRotation()
I/OrientationDebug(  163): [wms] in setRotation() rotation=3 alwaysSendConfiguration=false animFlags=0
I/OrientationDebug(  163): [wms] in setRotation() now call setRotationUnchecked()
I/WindowManager(  163): Setting rotation to 3, animFlags=0
I/ActivityManager(  163): Config changed: { scale=1.0 imsi=250/1 loc=ru_RU touch=3 keys=1/1/2 nav=1/1 orien=2 layout=18 uiMode=17 seq=7}
D/PhoneApp(  241): updateProximitySensorMode: lock already released.
I/ActivityThread( 3457): Pub com.google.android.googlequicksearchbox.shortcuts: com.google.android.googlequicksearchbox.WebHistoryProvider
I/ActivityThread( 3457): Pub com.google.android.googlequicksearchbox.google: com.google.android.googlequicksearchbox.google.GoogleSuggestionProvider
I/ActivityManager(  163): No longer want com.sec.android.widgetapp.clockweather.clockwidget (pid 1214): hidden #16
D/Finsky  ( 3406): [1] 2.run: Loaded library for account: [Y091GklnFtI4Ab1gmLOw-nJkJXQ]
D/Finsky  ( 3406): [1] 2.run: Finished loading 1 libraries.
W/dalvikvm( 3406): VFY: unable to resolve instance field 78
D/DfeApi  ( 3406): [1] DfeApiContext.getSmallestScreenWidthDp: smallestScreenWidthDp does not exist, using pre-ics hack.
E/QCvdec  (   95): Setparameter: unknown param 2130706451
W/TimedEventQueue(   95): Event 3 was not found in the queue, already cancelled?
E/QCvdec  (   95): Omx Flush issued when vdec is not initialized yet.
W/QCvdec  (   95): ======================================================================
W/QCvdec  (   95):                    Open Max Statistics                                
W/QCvdec  (   95): ======================================================================
W/QCvdec  (   95): empty this buffer rate = NaN
W/QCvdec  (   95): empty this buffer total time = 0
W/QCvdec  (   95): empty this buffer count = 0
W/QCvdec  (   95): ======================================================================
D/test.tv.activity.PlayerActivity( 3428): Player source: http://tvstream.cn.ru/storage/1kanal/20120530/1kanal-20120530-01-14-00-20120530-03-16-00.mp4
D/VideoView( 3428): onMeasure()
I/VideoView( 3428):     Setting size: 480x270
I/MediaPlayer( 3428): uri is:http://tvstream.cn.ru/storage/1kanal/20120530/1kanal-20120530-01-14-00-20120530-03-16-00.mp4
I/MediaPlayer( 3428): path is null
D/MediaPlayer( 3428): Couldn't open file on client side, trying server side
D/VideoView( 3428): onMeasure()
I/VideoView( 3428):     Setting size: 480x270
D/WifiService(  163): [mPersistState] : On
D/BatteryService(  163): update start
D/BatteryService(  163): update start
D/BatteryService(  163): update start
E/QCvdec  (   95): Setparameter: unknown param 2130706451
I/VideoView( 3428): start()
D/WifiService(  163): [mPersistState] : On
D/WifiService(  163): [mPersistState] : On
D/WifiWatchdogService(  163): (android.server.ServerThread) wntk (1c:af:f7:2e:7f:c8) does not require the watchdog
E/QCvdec  (   95): Unsupported profile, level, or widht, height
E/QCvdec  (   95): Unsupported clip
E/QCvdec  (   95): Unsupported profile, level, or widht, height
E/QCvdec  (   95): Unsupported clip
E/QCvdec  (   95): Omx Flush issued when vdec is not initialized yet.
E/QCvdec  (   95): Omx Flush issued when vdec is not initialized yet.
E/QCvdec  (   95): Empty this buffer in Invalid State
E/OMXCodec(   95): [OMX.qcom.video.decoder.avc] ERROR(0x8000100a, 0)
E/OMXCodec(   95): [OMX.qcom.video.decoder.avc] ERROR(0x8000100a, 0)
E/OMXCodec(   95): read : mState[9] is wrong...
E/MediaPlayer( 3428): error (1, -2147483648)
E/OMXCodec(   95): [OMX.qcom.video.decoder.avc] ERROR(0x8000100a, 0)
E/QCvdec  (   95): Omx Flush issued when vdec is not initialized yet.
D/VideoView( 3428): onMeasure()
I/VideoView( 3428):     Setting size: 335x270
I/VideoView( 3428): start()
E/MediaPlayer( 3428): start called in state 0
E/MediaPlayer( 3428): error (-38, 0)
E/MediaPlayer( 3428): Error (1,-2147483648)
D/VideoView( 3428): Error: 1,-2147483648
E/MediaPlayer( 3428): Error (-38,0)
D/VideoView( 3428): Error: -38,0
D/PowerManagerService(  163): reactivateScreenLocksLocked mProxIgnoredBecauseScreenTurnedOff=false
I/PowerManagerService(  163): Ulight 1->3|0
W/InputManagerService(  163): Window already focused, ignoring focus gain of: com.android.internal.view.IInputMethodClient$Stub$Proxy@40873ab8
I/PowerManagerService(  163): Light Animator Finished curIntValue=141
D/Finsky  ( 3406): [1] 5.onFinished: Installation state replication succeeded.
D/BatteryService(  163): update start
D/BatteryService(  163): update start
D/BatteryService(  163): update start

我尝试查找有关“OMX.qcom.video.decoder.avc] ERROR(0x8000100a, 0)”的内容，但没有找到任何有趣的内容。关于“Couldn't open file on client side, trying server side”问题stackoverflow有很多答案，但没有人帮助。

当我在 ICS 上(在模拟器中)启动这个应用程序时，我遇到了类似的错误:

06-01 10:22:14.674: I/NuCachedSource2(37): ERROR_END_OF_STREAM
06-01 10:22:15.375: I/OMXCodec(37): [OMX.google.h264.decoder] AVC profile = 100 (High), level = 30
06-01 10:22:15.384: I/OMXCodec(37): [OMX.google.h264.decoder] video dimensions are 320 x 240
06-01 10:22:15.384: I/OMXCodec(37): [OMX.google.h264.decoder] Crop rect is 320 x 240 @ (0, 0)
06-01 10:22:16.253: W/NetworkManagementSocketTagger(89): setKernelCountSet(10013, 0) failed with errno -2
06-01 10:22:16.374: I/Launcher(553): setLoadOnResume
06-01 10:22:16.584: D/MediaPlayer(602): getMetadata
06-01 10:22:16.614: I/NuCachedSource2(37): new range: offset= 0
06-01 10:22:16.694: I/ChromiumHTTPDataSource(37): connect to http://tvstream.cn.ru/storage/1kanal/20120530/1kanal-20120530-01-14-00-20120530-03-16-00.mp4 @0
06-01 10:22:16.834: E/SoftAVC(37): Decoder failed: -2
06-01 10:22:16.844: E/OMXCodec(37): [OMX.google.h264.decoder] ERROR(0x80001001, -1007)
06-01 10:22:16.884: D/AudioSink(37): bufferCount (4) is too small and increased to 12

据我所知，Android 支持播放使用 h264 解码的视频 (http://developer.android.com/guide/appendix/media-formats.html)。所以，谁能告诉我我做错了什么。

Answer 1

可能您的文件使用了不受支持的配置文件，请注意官方 media formats页面仅列出 H.264 AVC 支持的Baseline Profile。

尝试按照 this stackoverflow question 中的建议对指定基线配置文件的视频进行转码，即如果您的容器是 MP4 运行:

ffmpeg -i yourfile.mp4 -c:v libx264 -profile:v baseline -level 1 yourfile_BaselineProfile.mp4

如果这行得通，那不是您的代码中的问题，您只需使用受支持的格式即可。