How can I change video audio and subtitle track in Exo player in android

Question

Hy sir this code only for audio selection but can we select video, audio and subtitles also?

https://imbt.ga/iNBFLV8rSQ

public void setAudioTrack(int track) {
    System.out.println("setAudioTrack: "  + track);
    MappingTrackSelector.MappedTrackInfo mappedTrackInfo = Assertions.checkNotNull(trackSelector.getCurrentMappedTrackInfo());
    DefaultTrackSelector.Parameters parameters = trackSelector.getParameters();
    DefaultTrackSelector.ParametersBuilder builder = parameters.buildUpon();
    for (int rendererIndex = 0; rendererIndex < mappedTrackInfo.getRendererCount(); rendererIndex++) {
        int trackType = mappedTrackInfo.getRendererType(rendererIndex);
        if (trackType == C.TRACK_TYPE_AUDIO) {
            builder.clearSelectionOverrides(rendererIndex).setRendererDisabled(rendererIndex, false);
            int groupIndex = track -1;
            int [] tracks = {0}; 
            DefaultTrackSelector.SelectionOverride override = new DefaultTrackSelector.SelectionOverride(groupIndex,tracks);
            builder.setSelectionOverride(rendererIndex, mappedTrackInfo.getTrackGroups(rendererIndex), override);
        }
    }
    trackSelector.setParameters(builder);
    curentAudioTrack = track;
}

Answer 1

I have made a github repo with different feature such as changing the video track, you should take a look here

Otherwise you should take a look at the demo in Exoplayer Github, you can copy this file which do exactly what you need and then look at the implementation in this file.