How to add Subtitles(.SRT files) to video in Exoplayer android?

Question

i am working on a project where i should play .srt files along with video in android. I was working through the samples of Exoplayer but cant able to play .srt files with vi

Answer 1

I have given a lots of efforts for this and finally concluded to the solution...
Sharing here for the reference

Srt file format ref link - http://www.storiesinflight.com/js_videosub/jellies.srt

Solution which finds a way for me - https://github.com/google/ExoPlayer/issues/3869#issuecomment-367067013

Adding Exoplayer code here

// initialize exoplayer
private void initializeExoPlayer() {
    if (player == null) {
        video_view = (PlayerView) findViewById(R.id.video_view);

        // 1. Create a default TrackSelector
        LoadControl loadControl = new DefaultLoadControl(
                new DefaultAllocator(true, 16),
                VideoPlayerConfig.MIN_BUFFER_DURATION,
                VideoPlayerConfig.MAX_BUFFER_DURATION,
                VideoPlayerConfig.MIN_PLAYBACK_START_BUFFER,
                VideoPlayerConfig.MIN_PLAYBACK_RESUME_BUFFER, -1, true);

        BandwidthMeter bandwidthMeter = new DefaultBandwidthMeter();
        TrackSelection.Factory videoTrackSelectionFactory =
                new AdaptiveTrackSelection.Factory(bandwidthMeter);
        TrackSelector trackSelector =
                new DefaultTrackSelector(videoTrackSelectionFactory);
        // 2. Create the player
        player = ExoPlayerFactory.newSimpleInstance(new DefaultRenderersFactory(mContext), trackSelector, loadControl);
        video_view.setPlayer(player);

    }
}

public void buildMediaSource(String videoUrl, final String questionVideoThumbnail) {


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

    // Measures bandwidth during playback. Can be null if not required.
    DefaultBandwidthMeter bandwidthMeter = new DefaultBandwidthMeter();
    // Produces DataSource instances through which media data is loaded.
    DataSource.Factory dataSourceFactory = new DefaultDataSourceFactory(mContext,
            Util.getUserAgent(mContext, getString(R.string.app_name)), bandwidthMeter);
    // This is the MediaSource representing the media to be played.
    MediaSource videoSource = new ExtractorMediaSource.Factory(dataSourceFactory)
            .createMediaSource(mUri);
    // Prepare the player with the source.

    Format textFormat = Format.createTextSampleFormat(null, MimeTypes.APPLICATION_SUBRIP,
            null, Format.NO_VALUE, Format.NO_VALUE, "en", null, Format.OFFSET_SAMPLE_RELATIVE);
    MediaSource textMediaSource = new SingleSampleMediaSource.Factory(dataSourceFactory)
            .createMediaSource(srtUri, textFormat, C.TIME_UNSET);
    MergingMediaSource mediaSource = new MergingMediaSource(videoSource, textMediaSource);

    player.prepare(mediaSource);
    player.setPlayWhenReady(true);
    player.addListener(this);


}