rx-player
Version:
Canal+ HTML5 Video Player
67 lines (66 loc) • 2.66 kB
JavaScript
;
/**
* Copyright 2015 CANAL+ Group
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
Object.defineProperty(exports, "__esModule", { value: true });
exports.default = _addSegmentInfos;
var index_helpers_1 = require("../../utils/index_helpers");
/**
* Add a new segment to the index.
*
* /!\ Mutate the given index
* @param {Array.<Object>} timeline
* @param {number} timescale
* @param {Object} newSegment
* @param {Object} currentSegment
* @returns {Boolean} - true if the segment has been added
*/
function _addSegmentInfos(timeline, timescale, newSegment, currentSegment) {
var timelineLength = timeline.length;
var last = timeline[timelineLength - 1];
var scaledNewSegment = newSegment.timescale === timescale
? { time: newSegment.time, duration: newSegment.duration }
: {
time: (newSegment.time / newSegment.timescale) * timescale,
duration: (newSegment.duration / newSegment.timescale) * timescale,
};
// in some circumstances, the new segment information are only duration
// information that we could use to deduct the start of the next segment.
// This is the case where the new segment are associated to a current
// segment and have the same start.
// However, we prefer to be sure of the duration of the new segments
// before adding such segments.
var shouldDeductNextSegment = currentSegment.time === scaledNewSegment.time;
if (shouldDeductNextSegment) {
return false;
}
else if (scaledNewSegment.time >= (0, index_helpers_1.getIndexSegmentEnd)(last, null)) {
// if the given timing has a timestamp after the timeline end we
// just need to push a new element in the timeline, or increase
// the @r attribute of the last element.
if (last.duration === scaledNewSegment.duration) {
last.repeatCount++;
}
else {
timeline.push({
duration: scaledNewSegment.duration,
start: scaledNewSegment.time,
repeatCount: 0,
});
}
return true;
}
return false;
}