let tracks = player.textTracks();
let segmentMetadataTrack;
for (let i = 0; i < tracks.length; i++) {
if (tracks[i].label === 'segment-metadata') {
segmentMetadataTrack = tracks[i];
if (segmentMetadataTrack) {
segmentMetadataTrack.on('cuechange', function() {
let activeCue = segmentMetadataTrack.activeCues[0];