App-MHFS
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share/public_html/static/hls.js view on Meta::CPAN
if (!this._url && this.relurl) {
this._url = url_toolkit_default.a.buildAbsoluteURL(this.baseurl, this.relurl, { alwaysNormalize: true });
}
return this._url;
},
set: function set(value) {
this._url = value;
}
}, {
key: 'programDateTime',
get: function get() {
if (!this._programDateTime && this.rawProgramDateTime) {
this._programDateTime = new Date(Date.parse(this.rawProgramDateTime));
}
return this._programDateTime;
}
}, {
key: 'byteRange',
get: function get() {
if (!this._byteRange && !this.rawByteRange) {
return [];
}
if (this._byteRange) {
return this._byteRange;
share/public_html/static/hls.js view on Meta::CPAN
frag.start = totalduration;
frag.levelkey = levelkey;
frag.sn = sn;
frag.level = id;
frag.cc = cc;
frag.urlId = levelUrlId;
frag.baseurl = baseurl;
// avoid sliced strings https://github.com/video-dev/hls.js/issues/939
frag.relurl = (' ' + result[3]).slice(1);
if (level.programDateTime) {
if (prevFrag) {
if (frag.rawProgramDateTime) {
// PDT discontinuity found
frag.pdt = Date.parse(frag.rawProgramDateTime);
} else {
// Contiguous fragment
frag.pdt = prevFrag.pdt + prevFrag.duration * 1000;
}
} else {
// First fragment
frag.pdt = Date.parse(level.programDateTime);
}
frag.endPdt = frag.pdt + frag.duration * 1000;
}
level.fragments.push(frag);
prevFrag = frag;
totalduration += frag.duration;
frag = new loader_fragment();
}
share/public_html/static/hls.js view on Meta::CPAN
frag.rawByteRange = (' ' + result[4]).slice(1);
if (prevFrag) {
var lastByteRangeEndOffset = prevFrag.byteRangeEndOffset;
if (lastByteRangeEndOffset) {
frag.lastByteRangeEndOffset = lastByteRangeEndOffset;
}
}
} else if (result[5]) {
// PROGRAM-DATE-TIME
// avoid sliced strings https://github.com/video-dev/hls.js/issues/939
frag.rawProgramDateTime = (' ' + result[5]).slice(1);
frag.tagList.push(['PROGRAM-DATE-TIME', frag.rawProgramDateTime]);
if (level.programDateTime === undefined) {
level.programDateTime = new Date(new Date(Date.parse(result[5])) - 1000 * totalduration);
}
} else {
result = result[0].match(LEVEL_PLAYLIST_REGEX_SLOW);
for (i = 1; i < result.length; i++) {
if (result[i] !== undefined) {
break;
}
}
// avoid sliced strings https://github.com/video-dev/hls.js/issues/939
share/public_html/static/hls.js view on Meta::CPAN
// Attempt to align the level by using the last level - find the last frag matching the current CC and use it's PTS
// as a reference
function alignDiscontinuities(lastFrag, lastLevel, details) {
if (shouldAlignOnDiscontinuities(lastFrag, lastLevel, details)) {
var referenceFrag = findDiscontinuousReferenceFrag(lastLevel.details, details);
if (referenceFrag) {
logger["b" /* logger */].log('Adjusting PTS using last level due to CC increase within current level');
adjustPts(referenceFrag.start, details);
}
}
// try to align using programDateTime attribute (if available)
if (details.PTSKnown === false && lastLevel && lastLevel.details && lastLevel.details.fragments && lastLevel.details.fragments.length) {
// if last level sliding is 1000 and its first frag PROGRAM-DATE-TIME is 2017-08-20 1:10:00 AM
// and if new details first frag PROGRAM DATE-TIME is 2017-08-20 1:10:08 AM
// then we can deduce that playlist B sliding is 1000+8 = 1008s
var lastPDT = lastLevel.details.programDateTime;
var newPDT = details.programDateTime;
// date diff is in ms. frag.start is in seconds
var sliding = (newPDT - lastPDT) / 1000 + lastLevel.details.fragments[0].start;
if (!isNaN(sliding)) {
logger["b" /* logger */].log('adjusting PTS using programDateTime delta, sliding:' + sliding.toFixed(3));
adjustPts(sliding, details);
}
}
}
// CONCATENATED MODULE: ./src/task-loop.js
function task_loop__classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
function task_loop__possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
function task_loop__inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.cre...
share/public_html/static/hls.js view on Meta::CPAN
* @param {number} [bufferEnd = 0] - The end of the contiguous buffered range the playhead is currently within
* @param {*} levelDetails - An object containing the parsed and computed properties of the currently playing level
* @returns {number} nextPdt - The computed PDT
*/
function calculateNextPDT() {
var start = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 0;
var bufferEnd = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 0;
var levelDetails = arguments[2];
var pdt = 0;
if (levelDetails.programDateTime) {
var parsedDateInt = Date.parse(levelDetails.programDateTime);
if (!isNaN(parsedDateInt)) {
pdt = bufferEnd * 1000 + parsedDateInt - 1000 * start;
}
}
return pdt;
}
/**
* Finds the first fragment whose endPDT value exceeds the given PDT.
* @param {Array<Fragment>} fragments - The array of candidate fragments
share/public_html/static/hls.js view on Meta::CPAN
if (levelDetails.PTSKnown && bufferEnd > end && media && media.readyState) {
return null;
}
if (this.startFragRequested && !levelDetails.PTSKnown) {
/* we are switching level on live playlist, but we don't have any PTS info for that quality level ...
try to load frag matching with next SN.
even if SN are not synchronized between playlists, loading this frag will help us
compute playlist sliding and find the right one after in case it was not the right consecutive one */
if (fragPrevious) {
if (!levelDetails.programDateTime) {
// Uses buffer and sequence number to calculate switch segment (required if using EXT-X-DISCONTINUITY-SEQUENCE)
var targetSN = fragPrevious.sn + 1;
if (targetSN >= levelDetails.startSN && targetSN <= levelDetails.endSN) {
var fragNext = fragments[targetSN - levelDetails.startSN];
if (fragPrevious.cc === fragNext.cc) {
frag = fragNext;
logger["b" /* logger */].log('live playlist, switching playlist, load frag with next SN: ' + frag.sn);
}
}
// next frag SN not available (or not with same continuity counter)
share/public_html/static/hls.js view on Meta::CPAN
StreamController.prototype._findFragment = function _findFragment(start, fragPrevious, fragLen, fragments, bufferEnd, end, levelDetails) {
var config = this.hls.config;
var fragBySN = function fragBySN() {
return findFragmentBySN(fragPrevious, fragments, bufferEnd, end, config.maxFragLookUpTolerance);
};
var frag = void 0;
var foundFrag = void 0;
if (bufferEnd < end) {
if (!levelDetails.programDateTime) {
// Uses buffer and sequence number to calculate switch segment (required if using EXT-X-DISCONTINUITY-SEQUENCE)
foundFrag = findFragmentBySN(fragPrevious, fragments, bufferEnd, end, config.maxFragLookUpTolerance);
} else {
// Relies on PDT in order to switch bitrates (Support EXT-X-DISCONTINUITY without EXT-X-DISCONTINUITY-SEQUENCE)
foundFrag = findFragmentByPDT(fragments, calculateNextPDT(start, bufferEnd, levelDetails));
if (!foundFrag || fragment_finders_fragmentWithinToleranceTest(bufferEnd, config.maxFragLookUpTolerance, foundFrag)) {
// Fall back to SN order if finding by PDT returns a frag which won't fit within the stream
// fragmentWithToleranceTest returns 0 if the frag is within tolerance; 1 or -1 otherwise
logger["b" /* logger */].warn('Frag found by PDT search did not fit within tolerance; falling back to finding by SN');
foundFrag = fragBySN();
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