java - 如何在 Exoplayer android 中向视频添加字幕(.SRT 文件)？

Question

我正在做一个项目，我应该在 android 中播放 .srt 文件和视频。我正在研究 Exoplayer 的示例，但无法播放带视频的 .srt 文件。

我使用的代码是，

MediaSource mediaSource = new HlsMediaSource(Uri.parse("https://bitdash-a.akamaihd.net/content/sintel/hls/playlist.m3u8"),
                mediaDataSourceFactory, mainHandler, null);

         Format textFormat = Format.createTextSampleFormat(null, MimeTypes.APPLICATION_SUBRIP,
                null, Format.NO_VALUE, Format.NO_VALUE, "en", null);

        Uri uri = Uri.parse("http://www.storiesinflight.com/js_videosub/jellies.srt");


        MediaSource subtitleSource = new SingleSampleMediaSource(uri, mediaDataSourceFactory, textFormat, C.TIME_UNSET);
// Plays the video with the sideloaded subtitle.
        MergingMediaSource mergedSource =
                new MergingMediaSource(mediaSource, subtitleSource);

        player.prepare(mergedSource);

任何人都可以建议我解决这个问题或任何教程链接。非常感谢您的帮助!

Answer 1

我知道现在回答这个问题为时已晚，但如果有人爱上它，试试这个:

public class MainActivity extends AppCompatActivity {
SimpleExoPlayerView exoPlayerView;
SimpleExoPlayer exoPlayer;
String videoURL = "http://blueappsoftware.in/layout_design_android_blog.mp4";
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    exoPlayerView = (SimpleExoPlayerView) findViewById(R.id.exo_player_view);
    try {


        BandwidthMeter bandwidthMeter = new DefaultBandwidthMeter();
        TrackSelector trackSelector = new DefaultTrackSelector(new AdaptiveTrackSelection.Factory(bandwidthMeter));
        exoPlayer = ExoPlayerFactory.newSimpleInstance(this, trackSelector);

        Uri videoURI = Uri.parse(videoURL);
        Uri subtitleUri=Uri.parse("https://firebasestorage.googleapis.com/v0/b/findandfix-2f4a9.appspot.com/o/Despacito%20Remix%20Luis%20Fonsi%20ft.Daddy%20Yankee%20Justin%20Bieber%20Lyrics%20%5BSpanish%5D.srt?alt=media&token=63344d04-af1c-4e2c-9d15-381bf7159308");
        DefaultHttpDataSourceFactory dataSourceFactory = new DefaultHttpDataSourceFactory("exoplayer_video");

        ExtractorsFactory extractorsFactory = new DefaultExtractorsFactory();
        MediaSource mediaSource = new ExtractorMediaSource(videoURI, dataSourceFactory, extractorsFactory, null, null);

        // Build the subtitle MediaSource.
        Format subtitleFormat = Format.createTextSampleFormat(
                null, // An identifier for the track. May be null.
                MimeTypes.APPLICATION_SUBRIP, // The mime type. Must be set correctly.
                null,
                Format.NO_VALUE,
                Format.NO_VALUE,
                "en",
                null); // The subtitle language. May be null.

        MediaSource subtitleSource =new SingleSampleMediaSource(subtitleUri, dataSourceFactory, subtitleFormat, C.TIME_UNSET);

        MergingMediaSource mergedSource =
                new MergingMediaSource(mediaSource, subtitleSource);

        exoPlayerView.setPlayer(exoPlayer);
        exoPlayer.prepare(mergedSource);
        exoPlayer.setPlayWhenReady(true);
    }catch (Exception e){
        Log.e("MainAcvtivity"," exoplayer error "+ e.toString());
    }

}