Android的VideoView奇怪的现象 - ＆QUOT;无法播放视频＆QUOT; [英] Strange Behavior of Android VideoView - "Can't Play Video"

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问题描述

在我的应用程序，显示出通过将选定的视频文件路径，从SD卡的文件夹或视频意图在不同的活动一个VideoView新拍摄的视频录像。

In my application,showing video from sdcard folder or new taken video from Video intent in a VideoView in different Activity by passing file path of the video selected.

现在的问题是， 我在2设备上测试这个程序 LG擎天柱黑色和LG的Optimus我和它的工作原理般的魅力不是问题，没有强制关闭。

Now the problem is, I have tested this app in my 2 devices LG Optimus Black and LG Optimus Me and it works like charm not problem no force close.

现在当我测试这个程序在三星的Fascinate 2.1视频查看显示信息无法播放视频不管我选择现有的视频或拍摄新的。

Now when i test this app in Samsung Fascinate 2.1 the video view shows the message "Can't Play Video" no matter i select existing video or take new one.

记住应用程序工作正常与上述两个设备。

在ShowVideo活动，我有按钮上传视频，当我得到的消息无法播放视频我已经能够采取视频从相同的路径，并上传它，可以检查服务器的视频一面，但视频来看并没有起到该视频。的

So, the Video Path of the SDCard is not the problem thats for sure.

also the Video are of .3gp or .mp4 format only so the format is also supported by android

我的问题是：

1）当出现无法播放视频的发生？ 2）什么是该解决方案？ 3）还有什么可能的错误在我的应用程序？

1)When the message "Can't Play Video" occurs? 2)What are the Solution for that? and 3) What could be possible mistakes in my application?

这里是logcat的输出，而我得到的消息，但没有看到任何错误/例外，。

here is the logcat output while i got that message but don't see any error/exception in that.

I/ActivityManager( 2227): Starting activity: Intent { cmp=com.zoodigapp.zoodig/com.zoodigapp.media.ShowVideo (has extras) }
V/SettingsProvider( 2227): system <- value=1.0 name=font_scale
V/SettingsProvider( 2227): property: sys.settings_system_version=26
V/SettingsProvider( 2227): notifying: content://settings/system/font_scale
D/HardwareService( 2227): Brightness NATIVE setBacklightBrightness running. light: 2bightness ==> 30  mode:  1
D/NetworkLocationProvider( 2227): onDataConnectionStateChanged 6
D/MobileDataStateTracker( 2227): default Received state= CONNECTING, old= CONNECTING, reason= (unspecified), apnTypeList= *
D/AGPSManagerService( 2227): state: CONNECTING apnName: Verizon reason: null
D/dalvikvm( 3326): GC freed 2472 objects / 140504 bytes in 73ms
I/File    ( 3326): /sdcard/DCIM/Camera/video-2011-10-17-10-40-54.mp4
V/MediaStore( 3326): We probably run out of space, so create the thumbnail in memory.
I/MediaPlayerService( 2182): Use PV_PLAYER for url:/sdcard/DCIM/Camera/video-2011-10-17-10-40-54.mp4
E/MetadataDriver( 2182): MetadataDriver::setDataSource url file type is isAudiofile(0)
D/        ( 2182): SISO TEST registering PVMFRecognizerPluginFactory
D/        ( 2182): SISO TEST registering PVMFRecognizerPluginFactory success
E/MetadataDriver( 2182): isCommandSuccessful: Command id(0 and expected 0) and status (-17 and expected 1), data corruption (false) at state (4).
E/MetadataDriver( 2182): isCommandSuccessful: Command id(1 and expected 1) and status (-14 and expected 1), data corruption (false) at state (5).
E/MetadataDriver( 2182): captureFrame :  time = 0
E/MetadataDriver( 2182): captureFrame :  inputWidth = 0, inputHeight =0, bAspectratio=0, bResize=0
D/MediaUploader( 2492): UploadsQueue.getAllPending: elapsed msec=449
I/MediaUploader( 2492): UploadManager.uploadPendingItems: Found 1 items in queue.
I/Selected( 3326): =============Second
D/MediaUploader( 2492): isGphotosSynced: FALSE -- starting gphotos update refresh for -5709461173740324808
W/IInputConnectionWrapper( 3505): showStatusIcon on inactive InputConnection
I/copybit ( 2227): [createPP] fimc version : 50
I/MediaPlayerService( 2182): Use PV_PLAYER for url:/DCIM/Camera/video-2011-10-17-10-40-54.mp4
D/        ( 2182): SISO TEST registering PVMFRecognizerPluginFactory
D/        ( 2182): SISO TEST registering PVMFRecognizerPluginFactory success
D/        ( 2182): SISO TEST PVOMA1FFRecognizerFactory::CreateRecognizerPlugin()
D/        ( 2182): SISO TEST PVOMA1FFRecognizerFactory::CreateRecognizerPlugin() plugin found
D/        ( 2182): SISO TEST PVOMA1FFRecognizerFactory::DestroyRecognizerPlugin()
E/OsclDirectFileIO( 2182): [LargeFileSupport] OsclDirectFileIO::OpenFileOrSharedFd Error = -1
W/MediaPlayer( 3326): info/warning (1, 26)
E/PlayerDriver( 2182): Command PLAYER_SET_DATA_SOURCE completed with an error or info -4
E/MediaPlayer( 3326): SISO TEST MEDIA_ERROR
E/MediaPlayer( 3326): error (-4, -4)
W/PlayerDriver( 2182): PVMFInfoErrorHandlingComplete
V/MediaProvider( 2349): stopThumbWorkerSuspendTimer
V/MediaProvider( 2349): Resuming ThumbWorker
W/MediaProvider( 2349): Have message but no request?
I/System.out( 2647): interface name: null
I/MediaPlayer( 3326): Info (1,26)
E/MediaPlayer( 3326): Error (-4,-4)
D/VideoView( 3326): Error: -4,-4
D/MediaUploader( 2492): UploadManager.uploadPendingItems: Waiting for GPhotos sync
D/MediaUploader( 2492): UploadsQueue.getAllPending: elapsed msec=5
I/MediaUploader( 2492): UploadManager.uploadPendingItems: Found 1 items in queue.
I/POWER_OFF_TEST( 2227): mBatteryLevel = 38   mBatteryDecimalPoint = 1
D/MediaUploader( 2492): UploadsAsyncQueryHandler.notifiyDatabaseChangeListeners
D/MediaUploader( 2492): isGphotosSynced: FALSE -- update is in progress for -5709461173740324808
D/MediaUploader( 2492): UploadManager.uploadPendingItems: Waiting for GPhotos sync
D/MediaUploader( 2492): updateQueueState: RUNNING
I/GooglePlusOne( 2492): Starting new CAMERA_SYNC_CREATED request 1
I/ActivityManager( 2227): Displayed activity com.zoodigapp.zoodig/com.zoodigapp.media.ShowVideo: 1251 ms (total 1251 ms)
V/InputDevice( 2227): ID[0]=0 Dn (0=>1)
V/WindowManager( 2227): Dsptch >Window{47a67278 com.zoodigapp.zoodig/com.zoodigapp.media.ShowVideo paused=false}
D/dalvikvm( 2227): GC freed 4009 objects / 210024 bytes in 155ms
V/InputDevice( 2227): ID[0]=0 Up (1=>0)
V/WindowManager( 2227): Dsptch >Window{47a67278 com.zoodigapp.zoodig/com.zoodigapp.media.ShowVideo paused=false}
W/InputManagerService( 2227): Window already focused, ignoring focus gain of: com.android.internal.view.IInputMethodClient$Stub$Proxy@47d89250
D/dalvikvm( 2492): GC freed 11952 objects / 682568 bytes in 171ms
D/dalvikvm( 2647): GC freed 7435 objects / 656456 bytes in 26ms
D/dalvikvm( 2647): GC freed 3079 objects / 498304 bytes in 60ms
I/System.out( 2647): interface name: null
I/GooglePlusOne( 2492): CAMERA_SYNC_CREATED request 1 completed with code=200
D/MediaUploader( 2492): onGphotosChange: sawError=false; errs=0; retry=Wed Dec 31 17:00:00 America/Boise 1969; expiry=Mon Oct 17 10:56:20 America/Boise 2011
D/MediaUploader( 2492): UploadsQueue.getAllPending: elapsed msec=17
I/MediaUploader( 2492): UploadManager.uploadPendingItems: Found 1 items in queue.
D/MediaUploader( 2492): isGphotosSynced: TRUE for -5709461173740324808
D/MediaUploader( 2492): existsInGphotos: false info=name=video-2011-10-17-10-40-54.mp4 fileUri=content://media/external/video/media/37 fileSize=2477915;
D/MediaUploader( 2492): UploadManager.uploadPendingItems: starting upload...
D/MediaUploader( 2492): UploadManager.upload: info=name=video-2011-10-17-10-40-54.mp4 fileUri=content://media/external/video/media/37 fileSize=2477915
I/NetworkStat( 2678): Network type: MOBILE
I/NetworkStat( 2678): -------- mobile data network is NOT available as of now
D/NotificationService( 2227): enqueueNotification :: notification.defaults = 0, Notification.DEFAULT_SOUND = 1, notification.sound = null
D/dalvikvm( 2492): GC freed 4032 objects / 238248 bytes in 49ms
I/dalvikvm-heap( 2492): Grow heap (frag case) to 6.708MB for 524304-byte allocation
D/dalvikvm( 2492): GC freed 291 objects / 13392 bytes in 58ms
D/MediaUploader( 2492): UploadsAsyncQueryHandler.notifiyDatabaseChangeListeners
D/MediaUploader( 2492): GlsAuthorizer.getAuthToken: authTokenType=lh2; account=dprichards@gmail.com;
D/MediaUploader( 2492): executeWithAuthRetry: starting httpClient.execute #1
D/dalvikvm( 2870): GC freed 555 objects / 24144 bytes in 269ms
I/System.out( 2492): interface name: null
V/InputDevice( 2227): ID[0]=0 Dn (0=>1)
V/WindowManager( 2227): Dsptch >Window{47cf6308 com.zoodigapp.zoodig/com.zoodigapp.media.ShowVideo paused=false}
V/InputDevice( 2227): ID[0]=0 Up (1=>0)
V/WindowManager( 2227): Dsptch >Window{47cf6308 com.zoodigapp.zoodig/com.zoodigapp.media.ShowVideo paused=false}
D/dalvikvm( 2647): GC freed 7301 objects / 659064 bytes in 78ms
I/System.out( 2647): interface name: null
I/System.out( 2647): interface name: null
I/System.out( 2647): interface name: null
D/dalvikvm( 2647): GC freed 2654 objects / 324016 bytes in 149ms
I/System.out( 2647): interface name: null
D/MediaUploader( 2492): getStatusCode: status=HTTP/1.1 200 OK
D/MediaUploader( 2492): getStatusCode: status=HTTP/1.1 200 OK
D/MediaUploader( 2492): UPLOAD_START: uploadUrl=https://picasaweb.google.com/data/upload/resumable/media/create-session/feed/api/user/default/albumid/camera-sync?xmlerrors=1&upload_id=AEnB2Uqe2bdvyx5p31Ta-sS4ytggj07_6-uiKG_hCOc6sT1u8eqhvr-8oZdUT1uPHxuAxXphUiJXyq-i_8YaJlT2YLholp__Sw
D/MediaUploader( 2492): UploadManager.onProgress
V/MediaUploader( 2492): UploadManager.progressUpdate: guid=1351689615505998240; bytes=0
D/dalvikvm( 2647): GC freed 920 objects / 202544 bytes in 53ms
D/dalvikvm( 2492): GC freed 7362 objects / 498448 bytes in 73ms
D/MediaUploader( 2492): UploadsAsyncQueryHandler.notifiyDatabaseChangeListeners
D/dalvikvm( 2492): GC freed 658 objects / 129232 bytes in 42ms
I/dalvikvm-heap( 2492): Grow heap (frag case) to 7.250MB for 262160-byte allocation
D/dalvikvm( 2492): GC freed 0 objects / 0 bytes in 41ms
D/dalvikvm( 2492): GC freed 92 objects / 135128 bytes in 30ms
I/dalvikvm-heap( 2492): Grow heap (frag case) to 7.621MB for 524304-byte allocation
D/dalvikvm( 2492): GC freed 0 objects / 0 bytes in 44ms
D/MediaUploader( 2492): executeWithAuthRetry: starting httpClient.execute #1
D/dalvikvm( 2647): GC freed 576 objects / 53240 bytes in 182ms
V/InputDevice( 2227): ID[0]=0 Dn (0=>1)
V/WindowManager( 2227): Dsptch >Window{47cf6308 com.zoodigapp.zoodig/com.zoodigapp.media.ShowVideo paused=false}
V/InputDevice( 2227): ID[0]=0 Up (1=>0)
V/WindowManager( 2227): Dsptch >Window{47cf6308 com.zoodigapp.zoodig/com.zoodigapp.media.ShowVideo paused=false}
I/ActivityManager( 2227): Starting activity: Intent { cmp=com.zoodigapp.zoodig/.WriteMessage (has extras) }

如果你发现任何没有得到很好的描述，请在下面评论。

If you find anything not described well please comment below.

感谢你。

推荐答案

1）当出现无法播放视频的发生？

1)When the message "Can't Play Video" occurs?

Android的通常给出了此消息，如果它不能够播放媒体内容。原因要做到这一点可以像任何

Android usually gives out this message, when it is not able to play the media content. The reasons for this to happen can be anything like

  • 在不支持的文件格式
  • 在不支持codeCS
  • 错误的内容

仅举几例。

2）什么是该解决方案？

2)What are the Solution for that?

除非你有自己的媒体框架在你的应用程序，也没有从应用级解决方案

Unless you have your own Media Framework in your app, there is no solution from the application level

3）什么能在我的应用程序可能存在的错误？

3) What could be possible mistakes in my application?

非常不可能的错误是在应用程序中。如果你读了日志，你会看到错误似乎离的OpenCore的数据源发起（哪个版本的Andr​​oid，你反正运行的？它依然使用的，而不是StageFright的OpenCore）。它认识到它作为一个大文件（> 2GB），因此给予了错误 E / OsclDirectFileIO（2182）：[LargeFileSupport] OsclDirectFileIO :: OpenFileOrSharedFd错误= -1

Very unlikely the mistake is in your application. If you read the logs, you will see that the error seems to originate from the DataSource of opencore (Which version of android are you running anyway? It is still using Opencore instead of StageFright). It is recognizing it as a large file (> 2GB) and hence giving out the error "E/OsclDirectFileIO( 2182): [LargeFileSupport] OsclDirectFileIO::OpenFileOrSharedFd Error = -1"

另外要注意的是某些手机比其他手机更好的多媒体能力，因为OEM厂商可以自行提高多媒体能力。因此，有所有的文件可以在所有设备上播放任何书面保证，即使它符合支持的格式，codeCS搭载Android提及。

The other thing to note is certain phones have better multimedia capability than the other phones, since OEM's can themselves improve the multimedia capability. So there is no written guarantee that all files can be played on all devices, even though it conforms to the supported formats, codecs mentioned by Android.

这篇关于Android的VideoView奇怪的现象 - ＆QUOT;无法播放视频＆QUOT;的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！

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