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Q = document.querySelector.bind(document);
function text(msg) { return document.createTextNode(msg); }
function clearNode(node) { while (node.firstChild) node.removeChild(node.firstChild); }
function toTimestamp(s) {
var s = Math.floor(s);
var m = Math.floor(s/60); var s = s % 60;
return `0${m}:`.slice(-3) + `0${s}`.slice(-2);
}
var cur_track_idx = 0;
function getActiveTranscriptTrackIdx() {
let textTracks = Q("video").textTracks;
if (!textTracks.length) return;
for (let i=0; i < textTracks.length; i++) {
if (textTracks[i].mode == "showing") {
cur_track_idx = i;
return cur_track_idx;
}
}
return cur_track_idx;
}
function getActiveTranscriptTrack() { return Q("video").textTracks[getActiveTranscriptTrackIdx()]; }
function getDefaultTranscriptTrackIdx() {
let textTracks = Q("video").textTracks;
return textTracks.length - 1;
}
window.addEventListener('DOMContentLoaded', function() {
cur_track_idx = getDefaultTranscriptTrackIdx();
});
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