How to get the frame of video at specific position continuously in Exoplayer

This method should do the trick:

public static Bitmap getVideoFrame(Context context, Uri uri, long time) {

    Bitmap bitmap = null;
    MediaMetadataRetriever retriever = new MediaMetadataRetriever();

    try {

        retriever.setDataSource(context, uri);
        bitmap = retriever.getFrameAtTime(time);

    } catch (RuntimeException ex) {
        ex.printStackTrace();

    } finally {

        try {

            retriever.release();

        } catch (RuntimeException ex) {
            ex.printStackTrace();
        }
    }

    return bitmap;
}

Hope this help.

According to the answer of orimen.

exoPlayer.setVideoFrameMetadataListener((presentationTimeUs, releaseTimeNs, format, mediaFormat) -> currentFrame = getVideoFrame(getContext(), Uri.parse(data.path), presentationTimeUs));