Android VideoView不会播放MKV文件

Question

我的 VideoViewer 不会播放任何 MKV 文件。我已经在 .3gp 视频文件上进行了测试，它们工作正常，但 MKV 文件无法工作。视频永远不会显示，没有缓冲或任何东西。屏幕会显示得很好，但正如我所说，视频播放器要么不可见，要么不存在，我不知道。在输出中，它将显示以下内容：

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

并根据 MKV 的大小一遍又一遍地重复它们。然后，它要么使应用程序停止响应，要么给出以下输出。

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;
          }

    }
}

Answer 1

MKV 不是 Android 下支持的媒体容器。

支持的视频文件类型（容器格式）为：.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）是两个不同的东西。这意味着即使您有 .mp4 文件，也不意味着 Android 能够播放它。其内容还需要使用支持的编解码器进行编码。

Answer 2

自 Android 4.0+ 起，支持 MKV 视频，如此处所述。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 似乎记录很少（或者至少在提问时），正如其他人已经指出的这里。但是，使用这篇文章和这个答案 我能够从两个示例视频中检索这两个信息：

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));

来自两个不同的 MKV视频，我得到以下输出：

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 & 示例），有人可以使用上述方法在播放之前提取媒体的更多详细信息，或者至少记录发生了什么情况出了问题。