mirror of
https://github.com/shaka-project/shaka-player.git
synced 2026-06-16 16:16:40 +03:00
Natalie Harris
104 lines
3.2 KiB
Plaintext
104 lines
3.2 KiB
Plaintext
<!DOCTYPE html>
|
|
<html>
|
|
<head>
|
|
<meta charset="utf-8">
|
|
<title>TurtleTube - Offline</title>
|
|
<!-- Load the Shaka Player library. -->
|
|
<script src="shaka-player.compiled.js"></script>
|
|
</head>
|
|
<body>
|
|
<video id="video"
|
|
width="640" height="480"
|
|
crossorigin="anonymous"
|
|
controls>
|
|
Your browser does not support HTML5 video.
|
|
</video>
|
|
</body>
|
|
<script>
|
|
function initPlayer() {
|
|
// Install polyfills.
|
|
shaka.polyfill.installAll();
|
|
|
|
// Find the video element.
|
|
var video = document.getElementById('video');
|
|
|
|
// Attach the player to the window so that it can be easily debugged.
|
|
window.player = new shaka.player.Player(video);
|
|
|
|
// Listen for errors from the Player.
|
|
player.addEventListener('error', function(event) {
|
|
console.error(event);
|
|
});
|
|
}
|
|
|
|
function chooseTracks(videoSource) {
|
|
var ids = [];
|
|
|
|
var videoTracks = videoSource.getVideoTracks();
|
|
if (videoTracks.length) {
|
|
videoTracks.sort(shaka.player.VideoTrack.compare);
|
|
// Choosing the smallest track.
|
|
var track = videoTracks[0];
|
|
ids.push(track.id);
|
|
}
|
|
|
|
var audioTracks = videoSource.getAudioTracks();
|
|
if (audioTracks.length) {
|
|
// The video source gives you the preferred language first.
|
|
// Remove any tracks from other languages first.
|
|
var lang = audioTracks[0].lang;
|
|
audioTracks = audioTracks.filter(function(track) {
|
|
return track.lang == lang;
|
|
});
|
|
// From what's left, choose the middle stream. If we have high, medium,
|
|
// and low quality audio, this is medium. If we only have high and low,
|
|
// this is high.
|
|
var index = Math.floor(audioTracks.length / 2);
|
|
ids.push(audioTracks[index].id);
|
|
}
|
|
|
|
// Return IDs of chosen tracks.
|
|
return Promise.resolve(ids);
|
|
}
|
|
|
|
function storeContent() {
|
|
if (!window.player) {
|
|
initPlayer();
|
|
}
|
|
|
|
// Construct an OfflineVideoSource.
|
|
var estimator = new shaka.util.EWMABandwidthEstimator();
|
|
var offlineSource = new shaka.player.OfflineVideoSource(
|
|
null, // groupId, not used when storing content.
|
|
estimator);
|
|
|
|
// Listen for progress events from the OfflineVideoSource.
|
|
offlineSource.addEventListener('progress', function(event) {
|
|
// Percentage complete is the detail field of the event.
|
|
console.log(
|
|
'Content storage is ' + event.detail.toFixed(2) + '% complete.');
|
|
});
|
|
|
|
// Store content from MPD url.
|
|
var mpdUrl = 'http://turtle-tube.appspot.com/t/t2/dash.mpd';
|
|
var preferredLanguage = 'en-US';
|
|
offlineSource.store(
|
|
mpdUrl,
|
|
preferredLanguage,
|
|
null, // interpretContentProtection, not needed for clear content.
|
|
chooseTracks.bind(null, offlineSource)
|
|
).then(
|
|
function(groupId) {
|
|
window.groupId = groupId;
|
|
console.log('Stored content under group ID ' + window.groupId);
|
|
}
|
|
).catch(
|
|
function(e) {
|
|
console.error(e);
|
|
});
|
|
}
|
|
|
|
document.addEventListener('DOMContentLoaded', storeContent);
|
|
</script>
|
|
</html>
|