rx-player
Version:
Canal+ HTML5 Video Player
70 lines (69 loc) • 3.37 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 = getMaximumPosition;
var log_1 = require("../../../log");
var get_last_time_from_adaptation_1 = require("./get_last_time_from_adaptation");
/**
* @param {Array.<Object>} periods
* @returns {number | undefined}
*/
function getMaximumPosition(periods) {
for (var i = periods.length - 1; i >= 0; i--) {
var periodAdaptations = periods[i].adaptations;
var firstAudioAdaptationFromPeriod = periodAdaptations.audio === undefined ? undefined : periodAdaptations.audio[0];
var firstVideoAdaptationFromPeriod = periodAdaptations.video === undefined ? undefined : periodAdaptations.video[0];
if (firstAudioAdaptationFromPeriod !== undefined ||
firstVideoAdaptationFromPeriod !== undefined) {
// null == no segment
var maximumAudioPosition = null;
var maximumVideoPosition = null;
if (firstAudioAdaptationFromPeriod !== undefined) {
var lastPosition = (0, get_last_time_from_adaptation_1.default)(firstAudioAdaptationFromPeriod);
if (lastPosition === undefined) {
return { safe: undefined, unsafe: undefined };
}
maximumAudioPosition = lastPosition;
}
if (firstVideoAdaptationFromPeriod !== undefined) {
var lastPosition = (0, get_last_time_from_adaptation_1.default)(firstVideoAdaptationFromPeriod);
if (lastPosition === undefined) {
return { safe: undefined, unsafe: undefined };
}
maximumVideoPosition = lastPosition;
}
if ((firstAudioAdaptationFromPeriod !== undefined && maximumAudioPosition === null) ||
(firstVideoAdaptationFromPeriod !== undefined && maximumVideoPosition === null)) {
log_1.default.info("utils", "found Period with no segment. ", "Going to previous one to calculate last position");
return { safe: undefined, unsafe: undefined };
}
if (maximumVideoPosition !== null) {
if (maximumAudioPosition !== null) {
return {
safe: Math.min(maximumAudioPosition, maximumVideoPosition),
unsafe: Math.max(maximumAudioPosition, maximumVideoPosition),
};
}
return { safe: maximumVideoPosition, unsafe: maximumVideoPosition };
}
if (maximumAudioPosition !== null) {
return { safe: maximumAudioPosition, unsafe: maximumAudioPosition };
}
}
}
return { safe: undefined, unsafe: undefined };
}