2633a46d by David LaPalomento

Ensure overlapping buffered edges are not interpreted as updates

If the old and new buffered ranges have a shared start or end point, that edge should not be interpreted as a new buffered boundary. Fix up a number of the tests. Some tests are still failing.
1 parent 5ee4363a
......@@ -187,20 +187,20 @@
* active media playlist. When called with a single argument,
* triggers the playlist loader to asynchronously switch to the
* specified media playlist. Calling this method while the
* loader is in the HAVE_NOTHING or HAVE_MASTER states causes an
* error to be emitted but otherwise has no effect.
* loader is in the HAVE_NOTHING causes an error to be emitted
* but otherwise has no effect.
* @param playlist (optional) {object} the parsed media playlist
* object to switch to
*/
loader.media = function(playlist) {
var mediaChange = false;
var startingState = loader.state, mediaChange;
// getter
if (!playlist) {
return loader.media_;
}
// setter
if (loader.state === 'HAVE_NOTHING' || loader.state === 'HAVE_MASTER') {
if (loader.state === 'HAVE_NOTHING') {
throw new Error('Cannot switch media playlist from ' + loader.state);
}
......@@ -213,7 +213,7 @@
playlist = loader.master.playlists[playlist];
}
mediaChange = playlist.uri !== loader.media_.uri;
mediaChange = !loader.media_ || playlist.uri !== loader.media_.uri;
// switch to fully loaded playlists immediately
if (loader.master.playlists[playlist.uri].endList) {
......@@ -258,7 +258,17 @@
withCredentials: withCredentials
}, function(error, request) {
haveMetadata(error, request, playlist.uri);
if (error) {
return;
}
// fire loadedmetadata the first time a media playlist is loaded
if (startingState === 'HAVE_MASTER') {
loader.trigger('loadedmetadata');
} else {
loader.trigger('mediachange');
}
});
};
......@@ -320,19 +330,13 @@
loader.master.playlists[loader.master.playlists[i].uri] = loader.master.playlists[i];
}
request = xhr({
uri: resolveUrl(srcUrl, parser.manifest.playlists[0].uri),
withCredentials: withCredentials
}, function(error, request) {
// pass along the URL specified in the master playlist
haveMetadata(error,
request,
parser.manifest.playlists[0].uri);
if (!error) {
loader.trigger('loadedmetadata');
loader.trigger('loadedplaylist');
if (!request) {
// no media playlist was specifically selected so start
// from the first listed one
loader.media(parser.manifest.playlists[0]);
}
});
return loader.trigger('loadedplaylist');
return;
}
// loaded a media playlist
......@@ -468,8 +472,8 @@
}
// the playback position is outside the range of available
// segments so return the last one
return this.media_.segments.length - 1;
// segments so return the length
return this.media_.segments.length;
};
videojs.Hls.PlaylistLoader = PlaylistLoader;
......
......@@ -190,7 +190,8 @@ videojs.Hls.prototype.src = function(src) {
var updatedPlaylist = this.playlists.media();
if (!updatedPlaylist) {
// do nothing before an initial media playlist has been activated
// select the initial variant
this.playlists.media(this.selectPlaylist());
return;
}
......@@ -254,7 +255,7 @@ videojs.Hls.prototype.handleSourceOpen = function() {
// Returns the array of time range edge objects that were additively
// modified between two TimeRanges.
var bufferedAdditions = function(original, update) {
videojs.Hls.bufferedAdditions_ = function(original, update) {
var result = [], edges = [],
i, inOriginalRanges;
......@@ -271,6 +272,15 @@ var bufferedAdditions = function(original, update) {
var leftTime, rightTime;
leftTime = left.start !== undefined ? left.start : left.end;
rightTime = right.start !== undefined ? right.start : right.end;
// when two times are equal, ensure the original edge covers the
// update
if (leftTime === rightTime) {
if (left.original) {
return left.start !== undefined ? -1 : 1;
}
return right.start !== undefined ? -1 : 1;
}
return leftTime - rightTime;
});
......@@ -349,7 +359,7 @@ videojs.Hls.prototype.setupSourceBuffer_ = function() {
// annotate the segment with any start and end time information
// added by the media processing
segment = segmentInfo.playlist.segments[segmentInfo.mediaIndex];
timelineUpdates = bufferedAdditions(segmentInfo.buffered,
timelineUpdates = videojs.Hls.bufferedAdditions_(segmentInfo.buffered,
this.tech_.buffered());
timelineUpdates.forEach(function(update) {
if (update.start !== undefined) {
......@@ -1112,15 +1122,16 @@ videojs.Hls.prototype.drainBuffer = function(event) {
this.sourceBuffer.timestampOffset = currentBuffered.end(0);
}
// the segment is asynchronously added to the current buffered data
if (currentBuffered.length) {
this.sourceBuffer.videoBuffer_.appendWindowStart = Math.min(this.tech_.currentTime(), currentBuffered.end(0));
} else if (this.sourceBuffer.videoBuffer_) {
this.sourceBuffer.videoBuffer_.appendWindowStart = 0;
// Chrome 45 stalls if appends overlap the playhead
this.sourceBuffer.appendWindowStart = Math.min(this.tech_.currentTime(), currentBuffered.end(0));
} else {
this.sourceBuffer.appendWindowStart = 0;
}
this.pendingSegment_ = segmentBuffer.shift();
this.pendingSegment_.buffered = this.tech_.buffered();
// the segment is asynchronously added to the current buffered data
this.sourceBuffer.appendBuffer(bytes);
};
......
......@@ -69,13 +69,16 @@
});
test('moves to HAVE_MASTER after loading a master playlist', function() {
var loader = new videojs.Hls.PlaylistLoader('master.m3u8');
var loader = new videojs.Hls.PlaylistLoader('master.m3u8'), state;
loader.on('loadedplaylist', function() {
state = loader.state;
});
requests.pop().respond(200, null,
'#EXTM3U\n' +
'#EXT-X-STREAM-INF:\n' +
'media.m3u8\n');
ok(loader.master, 'the master playlist is available');
strictEqual(loader.state, 'HAVE_MASTER', 'the state is correct');
strictEqual(state, 'HAVE_MASTER', 'the state at loadedplaylist correct');
});
test('jumps to HAVE_METADATA when initialized with a media playlist', function() {
......@@ -453,6 +456,20 @@
'updated the active media');
});
test('can switch playlists immediately after the master is downloaded', function() {
var loader = new videojs.Hls.PlaylistLoader('master.m3u8');
loader.on('loadedplaylist', function() {
loader.media('high.m3u8');
});
requests.pop().respond(200, null,
'#EXTM3U\n' +
'#EXT-X-STREAM-INF:BANDWIDTH=1\n' +
'low.m3u8\n' +
'#EXT-X-STREAM-INF:BANDWIDTH=2\n' +
'high.m3u8\n');
equal(requests[0].url, urlTo('high.m3u8'), 'switched variants immediately');
});
test('can switch media playlists based on URI', function() {
var loader = new videojs.Hls.PlaylistLoader('master.m3u8');
requests.pop().respond(200, null,
......@@ -624,9 +641,6 @@
'low.m3u8\n' +
'#EXT-X-STREAM-INF:BANDWIDTH=2\n' +
'high.m3u8\n');
throws(function() {
loader.media('high.m3u8');
}, 'throws an error from HAVE_MASTER');
});
test('throws an error if a switch to an unrecognized playlist is requested', function() {
......@@ -757,10 +771,8 @@
'#EXTINF:5,\n' +
'1.ts\n' +
'#EXT-X-ENDLIST\n');
equal(loader.getMediaIndexForTime_(4), 0, 'rounds down exact matches');
equal(loader.getMediaIndexForTime_(4), 1, 'rounds up exact matches');
equal(loader.getMediaIndexForTime_(3.7), 0, 'rounds down');
// FIXME: the test below should pass for HLSv3
//equal(loader.getMediaIndexForTime_(4.2), 0, 'rounds down');
equal(loader.getMediaIndexForTime_(4.5), 1, 'rounds up at 0.5');
});
......
......@@ -686,73 +686,59 @@ test('downloads media playlists after loading the master', function() {
});
openMediaSource(player);
// set bandwidth to an appropriate number so we don't switch
player.tech_.hls.bandwidth = 200000;
player.tech_.hls.bandwidth = 20e10;
standardXHRResponse(requests[0]);
standardXHRResponse(requests[1]);
standardXHRResponse(requests[2]);
strictEqual(requests[0].url, 'manifest/master.m3u8', 'master playlist requested');
strictEqual(requests[1].url,
absoluteUrl('manifest/media.m3u8'),
absoluteUrl('manifest/media3.m3u8'),
'media playlist requested');
strictEqual(requests[2].url,
absoluteUrl('manifest/media-00001.ts'),
absoluteUrl('manifest/media3-00001.ts'),
'first segment requested');
});
test('upshift if initial bandwidth is high', function() {
test('upshifts if the initial bandwidth hint is high', function() {
player.src({
src: 'manifest/master.m3u8',
type: 'application/vnd.apple.mpegurl'
});
openMediaSource(player);
player.tech_.hls.bandwidth = 10e20;
standardXHRResponse(requests[0]);
player.tech_.hls.playlists.setBandwidth = function() {
player.tech_.hls.playlists.bandwidth = 1000000000;
};
standardXHRResponse(requests[1]);
standardXHRResponse(requests[2]);
standardXHRResponse(requests[3]);
strictEqual(requests[0].url, 'manifest/master.m3u8', 'master playlist requested');
strictEqual(requests[1].url,
absoluteUrl('manifest/media.m3u8'),
'media playlist requested');
strictEqual(requests[2].url,
absoluteUrl('manifest/media3.m3u8'),
'media playlist requested');
strictEqual(requests[3].url,
strictEqual(requests[2].url,
absoluteUrl('manifest/media3-00001.ts'),
'first segment requested');
});
test('dont downshift if bandwidth is low', function() {
test('downshifts if the initial bandwidth hint is low', function() {
player.src({
src: 'manifest/master.m3u8',
type: 'application/vnd.apple.mpegurl'
});
openMediaSource(player);
player.tech_.hls.bandwidth = 100;
standardXHRResponse(requests[0]);
player.tech_.hls.playlists.setBandwidth = function() {
player.tech_.hls.playlists.bandwidth = 100;
};
standardXHRResponse(requests[1]);
standardXHRResponse(requests[2]);
strictEqual(requests[0].url, 'manifest/master.m3u8', 'master playlist requested');
strictEqual(requests[1].url,
absoluteUrl('manifest/media.m3u8'),
absoluteUrl('manifest/media1.m3u8'),
'media playlist requested');
strictEqual(requests[2].url,
absoluteUrl('manifest/media-00001.ts'),
absoluteUrl('manifest/media1-00001.ts'),
'first segment requested');
});
......@@ -822,7 +808,7 @@ test('buffer checks are noops when only the master is ready', function() {
strictEqual(1, requests.length, 'one request was made');
strictEqual(requests[0].url,
absoluteUrl('manifest/media.m3u8'),
absoluteUrl('manifest/media1.m3u8'),
'media playlist requested');
});
......@@ -876,11 +862,9 @@ test('selects a playlist after segment downloads', function() {
return player.tech_.hls.playlists.master.playlists[0];
};
standardXHRResponse(requests[0]);
player.tech_.hls.bandwidth = 3000000;
standardXHRResponse(requests[1]);
standardXHRResponse(requests[2]);
standardXHRResponse(requests[0]); // master
standardXHRResponse(requests[1]); // media
standardXHRResponse(requests[2]); // segment
strictEqual(calls, 2, 'selects after the initial segment');
player.currentTime = function() {
......@@ -889,6 +873,7 @@ test('selects a playlist after segment downloads', function() {
player.buffered = function() {
return videojs.createTimeRange(0, 2);
};
player.tech_.hls.sourceBuffer.trigger('updateend');
player.tech_.hls.checkBuffer_();
standardXHRResponse(requests[3]);
......@@ -896,9 +881,7 @@ test('selects a playlist after segment downloads', function() {
strictEqual(calls, 3, 'selects after additional segments');
});
test('moves to the next segment if there is a network error', function() {
var mediaIndex;
test('reports an error if a segment is unreachable', function() {
player.src({
src: 'manifest/master.m3u8',
type: 'application/vnd.apple.mpegurl'
......@@ -909,62 +892,8 @@ test('moves to the next segment if there is a network error', function() {
standardXHRResponse(requests[0]);
standardXHRResponse(requests[1]);
mediaIndex = player.tech_.hls.mediaIndex;
player.trigger('timeupdate');
requests[2].respond(400);
strictEqual(mediaIndex + 1, player.tech_.hls.mediaIndex, 'media index is incremented');
});
test('updates playlist timeline offsets if it detects a desynchronization', function() {
var buffered = [], currentTime = 0;
player.src({
src: 'manifest/master.m3u8',
type: 'application/vnd.apple.mpegurl'
});
openMediaSource(player);
standardXHRResponse(requests.shift()); // master
requests.shift().respond(200, null,
'#EXTM3U\n' +
'#EXT-X-MEDIA-SEQUENCE:2\n' +
'#EXTINF:10,\n' +
'2.ts\n' +
'#EXTINF:10,\n' +
'3.ts\n'); // media
player.tech_.buffered = function() { return videojs.createTimeRange(buffered); };
player.tech_.currentTime = function() { return currentTime; };
player.tech_.paused = function() { return false; };
player.tech_.trigger('play');
clock.tick(1);
standardXHRResponse(requests.shift()); // segment 0
equal(player.tech_.hls.mediaIndex, 1, 'incremented mediaIndex');
player.tech_.hls.sourceBuffer.trigger('updateend');
buffered.push([0, 10]);
// force a playlist switch
player.tech_.hls.playlists.media('media1.m3u8');
requests = requests.filter(function(request) {
return !request.aborted;
});
requests.shift().respond(200, null,
'#EXTM3U\n' +
'#EXT-X-MEDIA-SEQUENCE:9999\n' +
'#EXTINF:10,\n' +
'3.ts\n' +
'#EXTINF:10,\n' +
'4.ts\n' +
'#EXTINF:10,\n' +
'5.ts\n'); // media1
player.tech_.hls.checkBuffer_();
standardXHRResponse(requests.shift());
buffered.push([20, 30]);
currentTime = 8;
player.tech_.hls.sourceBuffer.trigger('updateend');
equal(player.tech_.hls.mediaIndex, 0, 'prepared to request the missing segment');
strictEqual(player.tech_.hls.mediaSource.error_, 'network', 'network error is triggered');
});
test('updates the duration after switching playlists', function() {
......@@ -974,19 +903,22 @@ test('updates the duration after switching playlists', function() {
type: 'application/vnd.apple.mpegurl'
});
openMediaSource(player);
player.tech_.hls.bandwidth = 1e20;
standardXHRResponse(requests[0]); // master
standardXHRResponse(requests[1]); // media3
player.tech_.hls.selectPlaylist = function() {
selectedPlaylist = true;
// this duraiton should be overwritten by the playlist change
// this duration should be overwritten by the playlist change
player.tech_.hls.mediaSource.duration = -Infinity;
return player.tech_.hls.playlists.master.playlists[1];
};
standardXHRResponse(requests[0]);
standardXHRResponse(requests[1]);
standardXHRResponse(requests[2]);
standardXHRResponse(requests[3]);
standardXHRResponse(requests[2]); // segment 0
standardXHRResponse(requests[3]); // media1
ok(selectedPlaylist, 'selected playlist');
ok(player.tech_.hls.mediaSource.duration !== -Infinity, 'updates the duration');
});
......@@ -1058,21 +990,6 @@ test('selects a playlist below the current bandwidth', function() {
'the low bitrate stream is selected');
});
test('scales the bandwidth estimate for the first segment', function() {
player.src({
src: 'manifest/master.m3u8',
type: 'application/vnd.apple.mpegurl'
});
openMediaSource(player);
requests[0].bandwidth = 500;
requests.shift().respond(200, null,
'#EXTM3U\n' +
'#EXT-X-PLAYLIST-TYPE:VOD\n' +
'#EXT-X-TARGETDURATION:10\n');
equal(player.tech_.hls.bandwidth, 500 * 5, 'scaled the bandwidth estimate by 5');
});
test('allows initial bandwidth to be provided', function() {
player.src({
src: 'manifest/master.m3u8',
......@@ -1242,6 +1159,7 @@ test('downloads the next segment if the buffer is getting low', function() {
player.tech_.buffered = function() {
return videojs.createTimeRange(0, 19.999);
};
player.tech_.hls.sourceBuffer.trigger('updateend');
player.tech_.hls.checkBuffer_();
standardXHRResponse(requests[2]);
......@@ -1253,8 +1171,12 @@ test('downloads the next segment if the buffer is getting low', function() {
});
test('buffers based on the correct TimeRange if multiple ranges exist', function() {
var currentTime, buffered;
player.tech_.currentTime = function() {
return 8;
return currentTime;
};
player.tech_.buffered = function() {
return videojs.createTimeRange(buffered);
};
player.src({
......@@ -1262,37 +1184,28 @@ test('buffers based on the correct TimeRange if multiple ranges exist', function
type: 'application/vnd.apple.mpegurl'
});
openMediaSource(player);
player.tech_.buffered = function() {
return videojs.createTimeRange([[0, 10], [50, 160]]);
};
currentTime = 8;
buffered = [[0, 10], [20, 40]];
standardXHRResponse(requests[0]);
standardXHRResponse(requests[1]);
strictEqual(requests.length, 2, 'made two requests');
strictEqual(requests[1].url,
absoluteUrl('manifest/media-00001.ts'),
absoluteUrl('manifest/media-00002.ts'),
'made segment request');
player.tech_.currentTime = function() {
return 55;
};
currentTime = 22;
player.tech_.hls.sourceBuffer.trigger('updateend');
player.tech_.hls.checkBuffer_();
strictEqual(requests.length, 2, 'made no additional requests');
player.tech_.currentTime = function() {
return 134;
};
buffered = [[0, 10], [20, 30]];
player.tech_.hls.checkBuffer_();
standardXHRResponse(requests[2]);
strictEqual(requests.length, 3, 'made three requests');
strictEqual(requests[2].url,
absoluteUrl('manifest/media-00002.ts'),
absoluteUrl('manifest/media-00004.ts'),
'made segment request');
});
......@@ -1334,15 +1247,8 @@ test('only appends one segment at a time', function() {
standardXHRResponse(requests.pop()); // media.m3u8
standardXHRResponse(requests.pop()); // segment 0
player.tech_.hls.sourceBuffer.updating = true;
player.tech_.hls.sourceBuffer.appendBuffer = function() {
appends++;
};
player.tech_.hls.checkBuffer_();
standardXHRResponse(requests.pop()); // segment 1
player.tech_.hls.checkBuffer_(); // should be a no-op
equal(appends, 0, 'did not append while updating');
equal(requests.length, 0, 'did not request while updating');
});
QUnit.skip('records the min and max PTS values for a segment', function() {
......@@ -1424,7 +1330,6 @@ QUnit.skip('records PTS values for audio-only segments', function() {
});
test('waits to download new segments until the media playlist is stable', function() {
var media;
player.src({
src: 'manifest/master.m3u8',
type: 'application/vnd.apple.mpegurl'
......@@ -1432,22 +1337,19 @@ test('waits to download new segments until the media playlist is stable', functi
openMediaSource(player);
standardXHRResponse(requests.shift()); // master
player.tech_.hls.bandwidth = 1; // make sure we stay on the lowest variant
standardXHRResponse(requests.shift()); // media
standardXHRResponse(requests.shift()); // media1
// mock a playlist switch
media = player.tech_.hls.playlists.media();
player.tech_.hls.playlists.media = function() {
return media;
};
player.tech_.hls.playlists.state = 'SWITCHING_MEDIA';
// force a playlist switch
player.tech_.hls.playlists.media('media3.m3u8');
standardXHRResponse(requests.shift()); // segment 0
player.tech_.hls.sourceBuffer.trigger('updateend');
equal(requests.length, 0, 'no requests outstanding');
equal(requests.length, 1, 'only the playlist request outstanding');
player.tech_.hls.checkBuffer_();
equal(requests.length, 0, 'delays segment fetching');
equal(requests.length, 1, 'delays segment fetching');
player.tech_.hls.playlists.state = 'LOADED_METADATA';
standardXHRResponse(requests.shift()); // media3
player.tech_.hls.checkBuffer_();
equal(requests.length, 1, 'resumes segment fetching');
});
......@@ -1841,52 +1743,24 @@ QUnit.skip('translates ID3 PTS values across discontinuities', function() {
equal(track.cues[1].endTime, 11, 'second cue ended at the correct time');
});
test('adjusts the segment offsets for out-of-buffer seeking', function() {
player.src({
src: 'manifest/media.m3u8',
type: 'application/vnd.apple.mpegurl'
});
openMediaSource(player);
standardXHRResponse(requests.shift()); // media
player.tech_.hls.sourceBuffer.buffered = function() {
return videojs.createTimeRange(0, 20);
};
equal(player.tech_.hls.mediaIndex, 0, 'starts at zero');
player.tech_.setCurrentTime(35);
clock.tick(1);
// drop the aborted segment
requests.shift();
equal(player.tech_.hls.mediaIndex, 3, 'moved the mediaIndex');
standardXHRResponse(requests.shift());
});
test('seeks between buffered time ranges', function() {
player.src({
src: 'manifest/media.m3u8',
src: 'media.m3u8',
type: 'application/vnd.apple.mpegurl'
});
openMediaSource(player);
standardXHRResponse(requests.shift()); // media
player.tech_.buffered = function() {
return {
length: 2,
ranges_: [[0, 10], [20, 30]],
start: function(i) {
return this.ranges_[i][0];
},
end: function(i) {
return this.ranges_[i][1];
}
};
return videojs.createTimeRange([[0, 10], [20, 30]]);
};
player.tech_.setCurrentTime(15);
clock.tick(1);
// drop the aborted segment
requests.shift();
equal(player.tech_.hls.mediaIndex, 1, 'updated the mediaIndex');
standardXHRResponse(requests.shift());
equal(requests[0].url,
absoluteUrl('media-00002.ts'),
'requested the correct segment');
});
test('does not modify the media index for in-buffer seeking', function() {
......@@ -1979,40 +1853,6 @@ test('duration is Infinity for live playlists', function() {
'duration is infinity');
});
test('updates the media index when a playlist reloads', function() {
player.src({
src: 'http://example.com/live-updating.m3u8',
type: 'application/vnd.apple.mpegurl'
});
openMediaSource(player);
player.tech_.trigger('play');
requests[0].respond(200, null,
'#EXTM3U\n' +
'#EXTINF:10,\n' +
'0.ts\n' +
'#EXTINF:10,\n' +
'1.ts\n' +
'#EXTINF:10,\n' +
'2.ts\n');
standardXHRResponse(requests[1]);
// play the stream until 2.ts is playing
player.tech_.hls.mediaIndex = 3;
// trigger a playlist refresh
player.tech_.hls.playlists.trigger('mediaupdatetimeout');
requests[2].respond(200, null,
'#EXTM3U\n' +
'#EXT-X-MEDIA-SEQUENCE:1\n' +
'#EXTINF:10,\n' +
'1.ts\n' +
'#EXTINF:10,\n' +
'2.ts\n' +
'#EXTINF:10,\n' +
'3.ts\n');
strictEqual(player.tech_.hls.mediaIndex, 2, 'mediaIndex is updated after the reload');
});
test('live playlist starts three target durations before live', function() {
var mediaPlaylist;
player.src({
......@@ -2040,30 +1880,11 @@ test('live playlist starts three target durations before live', function() {
player.tech_.trigger('play');
clock.tick(1);
mediaPlaylist = player.tech_.hls.playlists.media();
equal(player.tech_.hls.mediaIndex, 1, 'mediaIndex is updated at play');
equal(player.currentTime(), player.tech_.hls.seekable().end(0), 'seeked to the seekable end');
equal(requests.length, 1, 'begins buffering');
});
test('does not reset live currentTime if mediaIndex is one beyond the last available segment', function() {
var playlist = {
mediaSequence: 20,
targetDuration: 9,
segments: [{
duration: 3
}, {
duration: 3
}, {
duration: 3
}]
};
equal(playlist.segments.length,
videojs.Hls.translateMediaIndex(playlist.segments.length, playlist, playlist),
'did not change mediaIndex');
});
test('live playlist starts with correct currentTime value', function() {
player.src({
src: 'http://example.com/manifest/liveStart30sBefore.m3u8',
......@@ -2117,39 +1938,6 @@ test('resets the time to a seekable position when resuming a live stream ' +
player.tech_.trigger('seeked');
});
test('mediaIndex is zero before the first segment loads', function() {
window.manifests['first-seg-load'] =
'#EXTM3U\n' +
'#EXTINF:10,\n' +
'0.ts\n';
player.src({
src: 'http://example.com/first-seg-load.m3u8',
type: 'application/vnd.apple.mpegurl'
});
openMediaSource(player);
strictEqual(player.tech_.hls.mediaIndex, 0, 'mediaIndex is zero');
});
test('mediaIndex returns correctly at playlist boundaries', function() {
player.src({
src: 'http://example.com/master.m3u8',
type: 'application/vnd.apple.mpegurl'
});
openMediaSource(player);
standardXHRResponse(requests.shift()); // master
standardXHRResponse(requests.shift()); // media
strictEqual(player.tech_.hls.mediaIndex, 0, 'mediaIndex is zero at first segment');
// seek to end
player.tech_.setCurrentTime(40);
clock.tick(1);
strictEqual(player.tech_.hls.mediaIndex, 3, 'mediaIndex is 3 at last segment');
});
test('reloads out-of-date live playlists when switching variants', function() {
player.src({
src: 'http://example.com/master.m3u8',
......@@ -3209,4 +2997,42 @@ test('does not download segments if preload option set to none', function() {
equal(requests.length, 0, 'did not download any segments');
});
module('Buffer Inspection');
test('detects time range edges added by updates', function() {
var edges;
edges = videojs.Hls.bufferedAdditions_(videojs.createTimeRange([[0, 10]]),
videojs.createTimeRange([[0, 11]]));
deepEqual(edges, [{ end: 11 }], 'detected a forward addition');
edges = videojs.Hls.bufferedAdditions_(videojs.createTimeRange([[5, 10]]),
videojs.createTimeRange([[0, 10]]));
deepEqual(edges, [{ start: 0 }], 'detected a backward addition');
edges = videojs.Hls.bufferedAdditions_(videojs.createTimeRange([[5, 10]]),
videojs.createTimeRange([[0, 11]]));
deepEqual(edges, [
{ start: 0 }, { end: 11 }
], 'detected forward and backward additions');
edges = videojs.Hls.bufferedAdditions_(videojs.createTimeRange([[0, 10]]),
videojs.createTimeRange([[0, 10]]));
deepEqual(edges, [], 'detected no addition');
edges = videojs.Hls.bufferedAdditions_(videojs.createTimeRange([]),
videojs.createTimeRange([[0, 10]]));
deepEqual(edges, [
{ start: 0 },
{ end: 10 }
], 'detected an initial addition');
edges = videojs.Hls.bufferedAdditions_(videojs.createTimeRange([[0, 10]]),
videojs.createTimeRange([[0, 10], [20, 30]]));
deepEqual(edges, [
{ start: 20 },
{ end: 30}
], 'detected a non-contiguous addition');
});
})(window, window.videojs);
......