111 lines
4.3 KiB
JavaScript
111 lines
4.3 KiB
JavaScript
// @license http://www.gnu.org/licenses/agpl-3.0.html AGPL-3.0
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(function () {
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if (Hls.isSupported()) {
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var videoSources = document.querySelectorAll("video source[type='application/vnd.apple.mpegurl']");
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videoSources.forEach(function (source) {
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var playlist = source.src;
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var oldVideo = source.parentNode;
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var autoplay = oldVideo.classList.contains("hls_autoplay");
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// If HLS is supported natively then don't use hls.js
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if (oldVideo.canPlayType(source.type) === "probably") {
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if (autoplay) {
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oldVideo.play();
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}
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return;
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}
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// Replace video with copy that will have all "source" elements removed
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var newVideo = oldVideo.cloneNode(true);
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var allSources = newVideo.querySelectorAll("source");
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allSources.forEach(function (source) {
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source.remove();
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});
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// Empty source to enable play event
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newVideo.src = "about:blank";
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oldVideo.parentNode.replaceChild(newVideo, oldVideo);
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function initializeHls() {
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newVideo.removeEventListener('play', initializeHls);
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var hls = new Hls({ autoStartLoad: false });
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hls.loadSource(playlist);
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hls.attachMedia(newVideo);
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hls.on(Hls.Events.MANIFEST_PARSED, function () {
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hls.loadLevel = hls.levels.length - 1;
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var availableLevels = hls.levels.map(function(level) {
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return {
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height: level.height,
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width: level.width,
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bitrate: level.bitrate,
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};
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});
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addQualitySelector(newVideo, hls, availableLevels);
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hls.startLoad();
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newVideo.play();
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});
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hls.on(Hls.Events.ERROR, function (event, data) {
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var errorType = data.type;
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var errorFatal = data.fatal;
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if (errorFatal) {
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switch (errorType) {
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case Hls.ErrorType.NETWORK_ERROR:
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hls.startLoad();
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break;
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case Hls.ErrorType.MEDIA_ERROR:
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hls.recoverMediaError();
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break;
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default:
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hls.destroy();
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break;
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}
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}
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console.error("HLS error", data);
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});
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}
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function addQualitySelector(videoElement, hlsInstance, availableLevels) {
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var qualitySelector = document.createElement('select');
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qualitySelector.classList.add('quality-selector');
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var last = availableLevels.length - 1;
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availableLevels.forEach(function (level, index) {
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var option = document.createElement('option');
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option.value = index.toString();
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var bitrate = (level.bitrate / 1_000).toFixed(0);
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option.text = level.height + 'p (' + bitrate + ' kbps)';
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if (index === last) {
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option.selected = "selected";
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}
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qualitySelector.appendChild(option);
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});
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qualitySelector.selectedIndex = availableLevels.length - 1;
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qualitySelector.addEventListener('change', function () {
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var selectedIndex = qualitySelector.selectedIndex;
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hlsInstance.nextLevel = selectedIndex;
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hlsInstance.startLoad();
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});
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videoElement.parentNode.appendChild(qualitySelector);
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}
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newVideo.addEventListener('play', initializeHls);
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if (autoplay) {
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newVideo.play();
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}
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});
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} else {
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var videos = document.querySelectorAll("video.hls_autoplay");
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videos.forEach(function (video) {
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video.setAttribute("autoplay", "");
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});
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}
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})();
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// @license-end
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