Android VideoView 不会播放 MKV 文件答案

【问题标题】：Android VideoView will not play MKV filesAndroid VideoView 不会播放 MKV 文件
【发布时间】：2011-09-25 08:20:57
【问题描述】：

我的 VideoViewer 不会播放任何 MKV 文件。我已经对 .3gp 视频文件进行了测试，它们可以正常工作，但 MKV 文件无法正常工作。视频永远不会出现，没有缓冲或任何东西。屏幕会正常显示，但正如我所说，视频播放器要么不可见，要么不存在，我无法判断。在输出中，它会说如下内容：

connect to ........
new range: ........

并根据 MKV 的大小一遍又一遍地重复它们。然后它会让应用程序停止响应或给出以下输出。

输出是：

09-25 07:54:40.767: INFO/ActivityManager(68): Starting: Intent { cmp=com.anime/.VideoPlayer } from pid 336
09-25 07:54:41.227: DEBUG/MediaPlayer(336): Couldn't open file on client side, trying server side
09-25 07:54:41.237: INFO/StagefrightPlayer(34): setDataSource('http://pbgl.net/Android/Naruto%20Shippuden/Hun_subtitle_sample1.mkv')
09-25 07:54:41.237: INFO/NuHTTPDataSource(34): connect to pbgl.net:80/Android/Naruto%20Shippuden/Hun_subtitle_sample1.mkv @0
09-25 07:54:41.767: INFO/ActivityManager(68): Displayed com.anime/.VideoPlayer: +968ms
09-25 07:54:43.017: INFO/NuCachedSource2(34): new range: offset= 821676
09-25 07:54:43.017: INFO/NuHTTPDataSource(34): connect to pbgl.net:80/Android/Naruto%20Shippuden/Hun_subtitle_sample1.mkv @821676
09-25 07:54:43.954: INFO/NuCachedSource2(34): new range: offset= 959025
09-25 07:54:43.954: INFO/NuHTTPDataSource(34): connect to pbgl.net:80/Android/Naruto%20Shippuden/Hun_subtitle_sample1.mkv @959025
09-25 07:54:45.564: INFO/NuCachedSource2(34): new range: offset= 1173410
09-25 07:54:45.564: INFO/NuHTTPDataSource(34): connect to pbgl.net:80/Android/Naruto%20Shippuden/Hun_subtitle_sample1.mkv @1173410
09-25 07:54:46.126: INFO/NuCachedSource2(34): ERROR_END_OF_STREAM
09-25 07:54:46.266: INFO/DEBUG(31): *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
09-25 07:54:46.266: INFO/DEBUG(31): Build fingerprint: 'generic/sdk/generic:2.3.3/GRI34/101070:eng/test-keys'
09-25 07:54:46.266: INFO/DEBUG(31): pid: 34, tid: 345  >>> /system/bin/mediaserver <<<
09-25 07:54:46.266: INFO/DEBUG(31): signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 00000024
09-25 07:54:46.266: INFO/DEBUG(31):  r0 00000000  r1 00000008  r2 00000003  r3 000151c0
09-25 07:54:46.266: INFO/DEBUG(31):  r4 0000fac0  r5 00014fb0  r6 00000000  r7 a30638bc
09-25 07:54:46.266: INFO/DEBUG(31):  r8 a2f60ab1  r9 0000f444  10 00100000  fp 00000001
09-25 07:54:46.266: INFO/DEBUG(31):  ip afc01100  sp 40606d58  lr a2ff0fd3  pc a2ff2b78  cpsr 40000030
09-25 07:54:46.426: INFO/DEBUG(31):          #00  pc 000f2b78  /system/lib/libstagefright.so
09-25 07:54:46.426: INFO/DEBUG(31):          #01  pc 000f0fce  /system/lib/libstagefright.so
09-25 07:54:46.426: INFO/DEBUG(31):          #02  pc 000f140e  /system/lib/libstagefright.so
09-25 07:54:46.436: INFO/DEBUG(31):          #03  pc 00054624  /system/lib/libstagefright.so
09-25 07:54:46.436: INFO/DEBUG(31):          #04  pc 00046290  /system/lib/libstagefright.so
09-25 07:54:46.436: INFO/DEBUG(31):          #05  pc 00047f08  /system/lib/libstagefright.so
09-25 07:54:46.436: INFO/DEBUG(31):          #06  pc 00044ea8  /system/lib/libstagefright.so
09-25 07:54:46.436: INFO/DEBUG(31):          #07  pc 00060a7e  /system/lib/libstagefright.so
09-25 07:54:46.436: INFO/DEBUG(31):          #08  pc 00060acc  /system/lib/libstagefright.so
09-25 07:54:46.436: INFO/DEBUG(31):          #09  pc 00011a7c  /system/lib/libc.so
09-25 07:54:46.446: INFO/DEBUG(31):          #10  pc 00011640  /system/lib/libc.so
09-25 07:54:46.446: INFO/DEBUG(31): code around pc:
09-25 07:54:46.446: INFO/DEBUG(31): a2ff2b58 685cd104 d101428c e0031c18 42933318 
09-25 07:54:46.446: INFO/DEBUG(31): a2ff2b68 2000d1f4 46c0bd70 47706a00 47706b00 
09-25 07:54:46.446: INFO/DEBUG(31): a2ff2b78 47706a40 600b6ac3 47706a80 47702001 
09-25 07:54:46.446: INFO/DEBUG(31): a2ff2b88 47702000 47702000 47702000 47702000 
09-25 07:54:46.446: INFO/DEBUG(31): a2ff2b98 6d591c03 47706d00 6dd91c03 47706d80 
09-25 07:54:46.446: INFO/DEBUG(31): code around lr:
09-25 07:54:46.446: INFO/DEBUG(31): a2ff0fb0 fd4cf001 1c2b4f76 447f3308 90079306 
09-25 07:54:46.446: INFO/DEBUG(31): a2ff0fc0 e0cb2300 98079904 fe26f001 f0011c06 
09-25 07:54:46.446: INFO/DEBUG(31): a2ff0fd0 a909fdd3 1c309003 fdd0f001 201c9005 
09-25 07:54:46.446: INFO/DEBUG(31): a2ff0fe0 ebb0f74d f7631c04 9408ff6f d0032c00 
09-25 07:54:46.446: INFO/DEBUG(31): a2ff0ff0 a9081c20 eba0f74d f0011c30 2801fd97 
09-25 07:54:46.446: INFO/DEBUG(31): stack:
09-25 07:54:46.446: INFO/DEBUG(31):     40606d18  000154c8  [heap]
09-25 07:54:46.446: INFO/DEBUG(31):     40606d1c  afc009cf  /system/lib/libstdc++.so
09-25 07:54:46.446: INFO/DEBUG(31):     40606d20  000154c8  [heap]
09-25 07:54:46.446: INFO/DEBUG(31):     40606d24  a8114ba7  /system/lib/libutils.so
09-25 07:54:46.446: INFO/DEBUG(31):     40606d28  0000fac0  [heap]
09-25 07:54:46.446: INFO/DEBUG(31):     40606d2c  000154c8  [heap]
09-25 07:54:46.446: INFO/DEBUG(31):     40606d30  a3060eb0  /system/lib/libstagefright.so
09-25 07:54:46.446: INFO/DEBUG(31):     40606d34  a8114ca9  /system/lib/libutils.so
09-25 07:54:46.446: INFO/DEBUG(31):     40606d38  00000002  
09-25 07:54:46.446: INFO/DEBUG(31):     40606d3c  40606d78  
09-25 07:54:46.446: INFO/DEBUG(31):     40606d40  00014fb0  [heap]
09-25 07:54:46.446: INFO/DEBUG(31):     40606d44  000154f0  [heap]
09-25 07:54:46.446: INFO/DEBUG(31):     40606d48  a30638bc  /system/lib/libstagefright.so
09-25 07:54:46.446: INFO/DEBUG(31):     40606d4c  a2f42a4d  /system/lib/libstagefright.so
09-25 07:54:46.446: INFO/DEBUG(31):     40606d50  df002777  
09-25 07:54:46.446: INFO/DEBUG(31):     40606d54  e3a070ad  
09-25 07:54:46.446: INFO/DEBUG(31): #01 40606d58  00000004  
09-25 07:54:46.446: INFO/DEBUG(31):     40606d5c  00000000  
09-25 07:54:46.446: INFO/DEBUG(31):     40606d60  00000004  
09-25 07:54:46.446: INFO/DEBUG(31):     40606d64  000152b0  [heap]
09-25 07:54:46.446: INFO/DEBUG(31):     40606d68  00000002  
09-25 07:54:46.446: INFO/DEBUG(31):     40606d6c  00000000  
09-25 07:54:46.446: INFO/DEBUG(31):     40606d70  00014fb8  [heap]
09-25 07:54:46.446: INFO/DEBUG(31):     40606d74  00015198  [heap]
09-25 07:54:46.446: INFO/DEBUG(31):     40606d78  0000fac0  [heap]
09-25 07:54:46.446: INFO/DEBUG(31):     40606d7c  00000000  
09-25 07:54:46.457: INFO/DEBUG(31):     40606d80  000152f0  [heap]
09-25 07:54:46.457: INFO/DEBUG(31):     40606d84  40606da0  
09-25 07:54:46.457: INFO/DEBUG(31):     40606d88  00014fb0  [heap]
09-25 07:54:46.457: INFO/DEBUG(31):     40606d8c  00000000  
09-25 07:54:46.457: INFO/DEBUG(31):     40606d90  40606e74  
09-25 07:54:46.457: INFO/DEBUG(31):     40606d94  a2ff1413  /system/lib/libstagefright.so
09-25 07:54:47.646: WARN/MediaMetadataRetriever(260): MediaMetadataRetriever server died!
09-25 07:54:47.646: WARN/AudioSystem(124): AudioFlinger server died!
09-25 07:54:47.646: WARN/AudioSystem(124): AudioPolicyService server died!
09-25 07:54:47.646: WARN/AudioSystem(336): AudioFlinger server died!
09-25 07:54:47.646: WARN/IMediaDeathNotifier(336): media server died
09-25 07:54:47.646: ERROR/MediaPlayer(336): error (100, 0)
09-25 07:54:47.646: ERROR/MediaPlayer(336): Error (100,0)
09-25 07:54:47.646: DEBUG/VideoView(336): Error: 100,0
09-25 07:54:47.666: WARN/AudioSystem(68): AudioFlinger server died!
09-25 07:54:47.666: WARN/AudioSystem(68): AudioPolicyService server died!
09-25 07:54:47.666: INFO/ServiceManager(28): service 'media.audio_flinger' died
09-25 07:54:47.666: INFO/ServiceManager(28): service 'media.audio_policy' died
09-25 07:54:47.666: INFO/ServiceManager(28): service 'media.player' died
09-25 07:54:47.666: INFO/ServiceManager(28): service 'media.camera' died
09-25 07:54:47.666: INFO/BootReceiver(68): Copying /data/tombstones/tombstone_04 to DropBox (SYSTEM_TOMBSTONE)
09-25 07:54:49.166: ERROR/AudioService(68): Media server died.
09-25 07:54:49.166: INFO/ServiceManager(68): Waiting for service media.audio_flinger...
09-25 07:54:49.977: INFO/(348): ServiceManager: 0xad50
09-25 07:54:49.977: DEBUG/AudioHardwareInterface(348): setMode(NORMAL)
09-25 07:54:49.977: INFO/CameraService(348): CameraService started (pid=348)
09-25 07:54:49.977: INFO/AudioFlinger(348): AudioFlinger's thread 0xc658 ready to run
09-25 07:54:50.198: ERROR/AudioService(68): Media server started.
09-25 07:54:50.207: DEBUG/AudioHardwareInterface(348): setMode(NORMAL)

我的代码：（不是主要活动）

package com.anime;

import java.io.IOException;
import java.net.URI;
import java.net.URL;
import java.util.ArrayList;

import android.app.*;
import android.media.MediaPlayer;
import android.net.Uri;
import android.os.*;
import android.text.*;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.*;
import android.widget.AdapterView.OnItemClickListener;

public class VideoPlayer extends Activity implements OnClickListener {
    /** Called when the activity is first created. */

    VideoView vv;
    Button close;
    public static String selectedVideo = "";

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.vidplayer);
        close = (Button) findViewById(R.id.button1);
        vv = (VideoView) findViewById(R.id.videoView1);
        playVideo(selectedVideo);
        View btn1 = findViewById(R.id.button1);
        btn1.setOnClickListener(this);
    }

    public void playVideo(String selected) {
        setContentView(R.layout.vidplayer);
        String url = RunApp.videoUrls.get(RunApp.currentShow).get(RunApp.videos.get(RunApp.currentShow).indexOf(selected)).toString(); // your URL here
        vv = (VideoView) findViewById(R.id.videoView1);
        try {
            vv.setVideoURI(Uri.parse(url));
            vv.setMediaController(new MediaController(this));
            vv.requestFocus();
            vv.start();
        } catch (IllegalArgumentException e) {
            e.printStackTrace();
        } catch (IllegalStateException e) {
            e.printStackTrace();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    @Override
    public void onClick(View v) {
        System.out.println("ID: " + v.getId());
          switch (v.getId()){
          case R.id.button1:
              finish();
              break;
          }

    }
}

【问题讨论】：

标签： android android-videoview

【解决方案1】：

MKV 不是 Android 下的supported media 容器。

支持的视频文件类型（容器格式）有：.3gp、.mp4 和 .webm。支持的视频编解码器也有限制。

此外，视频编解码器格式（h263、h264、mpeg-4、vp8）和容器格式（3gp、mp4、webm）是两种不同的东西。这意味着即使您有一个 .mp4 文件，也并不意味着 Android 可以播放它。它的内容也需要使用支持的编解码器进行编码。

【讨论】：

我以为MKV可以通过安装编解码器播放？我知道 linux 内核支持它。
呃，那么媒体播放器应用程序如何播放 MKV 文件？我不太明白。
他们打包 mkv 容器，该容器可以包含多个流（视频、音频、字幕），然后根据流的类型将这些流提供给适当的编解码器。如果缺少编解码器，则有时您会看不到视频或音频。
长话短说：您不能在 Android 上播放 mkv 文件，因为它的 MediaPlayer 不支持该格式。您必须编写自己的媒体播放器或使用现有的开源播放器之一，如 VLC 或 MPlayer。

【解决方案2】：

自 Android 4.0+ 起，支持 MKV 视频，如 here 所述。但正如@Peter Knego 所说，视频编解码器格式和容器格式是两个不同的东西。

Android Media API 的文档似乎很差（或者至少在提问时），因为其他人已经指出 here。但是，使用来自this post 和this answer 的提示，我能够从两个示例视频中检索到这两个信息：

Uri videoUri = Uri.parse("android.resource://"
            + getPackageName() + "/" + R.raw.sample_video);
// Codec Format
extractor = new MediaExtractor();
extractor.setDataSource(this, videoUri, null);

for (int i = 0; i < extractor.getTrackCount(); i++) {
     MediaFormat format = extractor.getTrackFormat(i);
     String mime = format.getString(MediaFormat.KEY_MIME);
     if (mime.startsWith("video/")) {
         Log.d(TAG, "CODEC: " + mime);
         break;
     }
}
// Container Format
MediaMetadataRetriever mmr = new MediaMetadataRetriever();
mmr.setDataSource(this, videoUri);

Log.d(TAG, "CONTAINER: "
      + mmr.extractMetadata(MediaMetadataRetriever.METADATA_KEY_MIMETYPE));

从两个不同的 MKV 视频中，我得到了以下输出：

D/VideoActivity: CODEC: video/mp4v-es
D/VideoActivity: CONTAINER: video/x-matroska

D/VideoActivity: CODEC: video/avc
D/VideoActivity: CONTAINER: video/x-matroska

虽然我认为处理不受支持的文件的最佳方法可能是使用try/catch 块和/或VideoView.setOnErrorListening（doc 和example），但有人可以使用上述方法在播放之前提取媒体的更多细节或者至少记录出现问题时发生的情况。

【讨论】：