>>610
function changeQuality(n) {
var p = theoplayer.player(0);
if (p) {
var q = p.videoTracks.item(0).qualities;
if (n >= 49 && n <= 53) {
var num = n - 49,
len = q.length;
if (num > len - 1) num = len - 1;
q.targetQuality = q.getQualityByID(num);
ls.videoQuality = n - 48;
} else if (!n) {
q.targetQuality = null;
ls.videoQuality = 0;
}
saveLocalStorage();
}
}