Android和Vitamio : sorry, 此视频无法播放

Question

我正在开发一个小型电视应用程序，它使用许多 m3u8 格式的电视流。如果我使用 native VideoView，所有流都可以正常工作。但我想使用 Vitamio 更好地支持不同的协议(protocol)和视频编解码器。我将 Vitamio 添加到我的项目中，而不是原生的 VideoView。这很容易，但我对所有流都有错误:“无法播放视频。抱歉，无法播放此视频。”在logcat中:“E/Vitamio[Player]:Error (1, -1094995529)”我看了很多类似的文章如何添加 Vitamio，但找不到我做错了什么。

在需要互联网访问 list 中，设备可以访问互联网。

还有:

    <activity android:name="io.vov.vitamio.activity.InitActivity"
android:configChanges="orientation|screenSize|smallestScreenSize|keyboard|keyboardHidden"
android:launchMode="singleTop"
android:theme="@android:style/Theme.NoTitleBar"
android:windowSoftInputMode="stateAlwaysHidden"/>

在 module.app 中

    dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile 'com.android.support:appcompat-v7:23.0.1'
    compile 'me.neavo:vitamio:4.2.2'
}

这是我用来测试的代码:

import io.vov.vitamio.LibsChecker;
import io.vov.vitamio.MediaPlayer;
import io.vov.vitamio.widget.MediaController;
import io.vov.vitamio.widget.VideoView;

public class MainActivity extends AppCompatActivity {

    VideoView vidView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        vidView = (VideoView)findViewById(R.id.myVideo);
        getSupportActionBar().hide();
        if (!LibsChecker.checkVitamioLibs(this))
            return;

        vidView.setMediaController(new MediaController(this));
        vidView.setOnPreparedListener(new MediaPlayer.OnPreparedListener() {
            @Override
            public void onPrepared(MediaPlayer mediaPlayer) {
                mediaPlayer.setPlaybackSpeed(1.0f);
            }
        });
        vidView.setVideoPath("http://devimages.apple.com/iphone/samples/bipbop/bipbopall.m3u8");
        vidView.requestFocus();
    }

Answer 1

来自 ffmpeg 的错误代码(来自 avutil 的 error.h): http://ffmpeg.org/doxygen/trunk/error_8h_source.html

原来你指定的值是:

#define AVERROR_INVALIDDATA        FFERRTAG( 'I','N','D','A')

-1094995529 变为 -0x41444E49，当您查看这些字母时，在 ACSII 中，0x41 =“A”、0x44 =“D”、0x4E =“N”和 0x49 =“I”。由于宏/等事情被颠倒了，所以 ADNI 变成了 INDA，你可以从 #define fragment 中看到，是 AVERROR_INVALIDDATA 定义的 FFERRTAG( 'I','N','D','A').

其余的错误代码在该文件中，我已将它们粘贴在下面:

#define AVERROR_BSF_NOT_FOUND      FFERRTAG(0xF8,'B','S','F') ///< Bitstream filter not found
#define AVERROR_BUG                FFERRTAG( 'B','U','G','!') ///< Internal bug, also see AVERROR_BUG2
#define AVERROR_BUFFER_TOO_SMALL   FFERRTAG( 'B','U','F','S') ///< Buffer too small
#define AVERROR_DECODER_NOT_FOUND  FFERRTAG(0xF8,'D','E','C') ///< Decoder not found
#define AVERROR_DEMUXER_NOT_FOUND  FFERRTAG(0xF8,'D','E','M') ///< Demuxer not found
#define AVERROR_ENCODER_NOT_FOUND  FFERRTAG(0xF8,'E','N','C') ///< Encoder not found
#define AVERROR_EOF                FFERRTAG( 'E','O','F',' ') ///< End of file
#define AVERROR_EXIT               FFERRTAG( 'E','X','I','T') ///< Immediate exit was requested; the called function should not be restarted
#define AVERROR_EXTERNAL           FFERRTAG( 'E','X','T',' ') ///< Generic error in an external library
#define AVERROR_FILTER_NOT_FOUND   FFERRTAG(0xF8,'F','I','L') ///< Filter not found
#define AVERROR_INVALIDDATA        FFERRTAG( 'I','N','D','A') ///< Invalid data found when processing input
#define AVERROR_MUXER_NOT_FOUND    FFERRTAG(0xF8,'M','U','X') ///< Muxer not found
#define AVERROR_OPTION_NOT_FOUND   FFERRTAG(0xF8,'O','P','T') ///< Option not found
#define AVERROR_PATCHWELCOME       FFERRTAG( 'P','A','W','E') ///< Not yet implemented in FFmpeg, patches welcome
#define AVERROR_PROTOCOL_NOT_FOUND FFERRTAG(0xF8,'P','R','O') ///< Protocol not found
#define AVERROR_STREAM_NOT_FOUND   FFERRTAG(0xF8,'S','T','R') ///< Stream not found
#define AVERROR_BUG2               FFERRTAG( 'B','U','G',' ')
#define AVERROR_UNKNOWN            FFERRTAG( 'U','N','K','N') ///< Unknown error, typically from an external library
#define AVERROR_EXPERIMENTAL       (-0x2bb2afa8) ///< Requested feature is flagged experimental. Set strict_std_compliance if you really want to use it.
#define AVERROR_INPUT_CHANGED      (-0x636e6701) ///< Input changed between calls. Reconfiguration is required. (can be OR-ed with AVERROR_OUTPUT_CHANGED)
#define AVERROR_OUTPUT_CHANGED     (-0x636e6702) ///< Output changed between calls. Reconfiguration is required. (can be OR-ed with AVERROR_INPUT_CHANGED)
#define AVERROR_HTTP_BAD_REQUEST   FFERRTAG(0xF8,'4','0','0')
#define AVERROR_HTTP_UNAUTHORIZED  FFERRTAG(0xF8,'4','0','1')
#define AVERROR_HTTP_FORBIDDEN     FFERRTAG(0xF8,'4','0','3')
#define AVERROR_HTTP_NOT_FOUND     FFERRTAG(0xF8,'4','0','4')
#define AVERROR_HTTP_OTHER_4XX     FFERRTAG(0xF8,'4','X','X')
#define AVERROR_HTTP_SERVER_ERROR  FFERRTAG(0xF8,'5','X','X')

您的视频路径指定了一个需要额外文件的文件。也就是说，它在内部引用 gear4\prog_index.m3u8，所以您可能也必须加载它？

因为vitamio返回了一个ffmpeg错误码，我怀疑它在某种程度上依赖于ffmpeg，使用VideoView句柄，但直接使用它却没有。