public void playOnChromecast() {

    CastSession session =CastContext.getSharedInstance(this).getSessionManager().getCurrentCastSession();

    if(session == null) return;

    MediaMetadata movieMetadata = new MediaMetadata(MediaMetadata.MEDIA_TYPE_MOVIE);

    movieMetadata.putString(MediaMetadata.KEY_TITLE, this.video.getName());
    movieMetadata.putString(MediaMetadata.KEY_SUBTITLE, this.video.getDescription());
    movieMetadata.addImage(new WebImage(Uri.parse(this.video.getThumbnail())));
    movieMetadata.addImage(new WebImage(Uri.parse(this.video.getThumbnail())));

    MediaLoadOptions.Builder mediaLoadOptionsBuilder = new MediaLoadOptions.Builder();
    mediaLoadOptionsBuilder.setAutoplay(true);
    mediaLoadOptionsBuilder.setPlayPosition(0);

    MediaTrack track = new MediaTrack.Builder(this.video.getId(), MediaTrack.TYPE_VIDEO)
            .setName(this.video.getName())
            .setSubtype(MediaTrack.SUBTYPE_NONE)
            .setContentId(String.valueOf(this.video.getId()))
            .setLanguage("es").build();

    ArrayList<MediaTrack> tracks = new ArrayList<MediaTrack>();
    tracks.add(track);

    JSONObject jsonObj = null;try {
        jsonObj = new JSONObject();
        jsonObj.put("description", this.video.getDescription());
    } catch (JSONException e) {
        e.printStackTrace();
    }

    MediaInfo mediaInfo = new MediaInfo.Builder("http://clips.vorwaerts-gmbh.de/VfE_html5.mp4")
            .setStreamType(MediaInfo.STREAM_TYPE_BUFFERED)
            .setContentType("video/mp4")
            .setMetadata(movieMetadata)
            .setMediaTracks(tracks)
            .setCustomData(jsonObj)
            .build();

    RemoteMediaClient remoteMediaClient = session.getRemoteMediaClient();
    remoteMediaClient.load(mediaInfo, mediaLoadOptionsBuilder.build());
}