rx-player
Version:
Canal+ HTML5 Video Player
157 lines (156 loc) • 5.98 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.
*/
import isNullOrUndefined from "../../../../../utils/is_null_or_undefined";
import startsWith from "../../../../../utils/starts_with";
import { createAdaptationSetIntermediateRepresentation } from "./AdaptationSet";
import parseBaseURL from "./BaseURL";
import parseContentProtection from "./ContentProtection";
import { createEventStreamIntermediateRepresentation } from "./EventStream";
import parseSegmentTemplate from "./SegmentTemplate";
import { parseBoolean, parseDuration, ValueParser } from "./utils";
/**
* @param {Array.<Object | string>} periodChildren
* @param {string} fullMpd
* @returns {Array}
*/
function parsePeriodChildren(periodChildren, fullMpd) {
const baseURLs = [];
const adaptations = [];
let segmentTemplate;
const contentProtections = [];
let warnings = [];
const eventStreams = [];
for (let i = 0; i < periodChildren.length; i++) {
const currentElement = periodChildren[i];
if (typeof currentElement === "string") {
continue;
}
switch (currentElement.tagName) {
case "BaseURL": {
const [baseURLObj, baseURLWarnings] = parseBaseURL(currentElement);
if (baseURLObj !== undefined) {
baseURLs.push(baseURLObj);
}
warnings = warnings.concat(baseURLWarnings);
break;
}
case "AdaptationSet": {
const [adaptation, adaptationWarnings] = createAdaptationSetIntermediateRepresentation(currentElement);
adaptations.push(adaptation);
warnings = warnings.concat(adaptationWarnings);
break;
}
case "EventStream": {
const [eventStream, eventStreamWarnings] = createEventStreamIntermediateRepresentation(currentElement, fullMpd);
eventStreams.push(eventStream);
warnings = warnings.concat(eventStreamWarnings);
break;
}
case "SegmentTemplate": {
const [parsedSegmentTemplate, segmentTemplateWarnings] = parseSegmentTemplate(currentElement);
segmentTemplate = parsedSegmentTemplate;
if (segmentTemplateWarnings.length > 0) {
warnings = warnings.concat(segmentTemplateWarnings);
}
break;
}
case "ContentProtection": {
const [contentProtection, contentProtectionWarnings] = parseContentProtection(currentElement);
if (contentProtectionWarnings.length > 0) {
warnings = warnings.concat(contentProtectionWarnings);
}
if (contentProtection !== undefined) {
contentProtections.push(contentProtection);
}
break;
}
}
}
return [
{ baseURLs, adaptations, eventStreams, segmentTemplate, contentProtections },
warnings,
];
}
/**
* @param {Object} root
* @returns {Array}
*/
function parsePeriodAttributes(root) {
const res = {};
const warnings = [];
const parseValue = ValueParser(res, warnings);
for (const attributeName of Object.keys(root.attributes)) {
const attributeVal = root.attributes[attributeName];
if (isNullOrUndefined(attributeVal)) {
continue;
}
switch (attributeName) {
case "id":
res.id = attributeVal;
break;
case "start":
parseValue(attributeVal, {
asKey: "start",
parser: parseDuration,
dashName: "start",
});
break;
case "duration":
parseValue(attributeVal, {
asKey: "duration",
parser: parseDuration,
dashName: "duration",
});
break;
case "bitstreamSwitching":
parseValue(attributeVal, {
asKey: "bitstreamSwitching",
parser: parseBoolean,
dashName: "bitstreamSwitching",
});
break;
case "xlink:href":
res.xlinkHref = attributeVal;
break;
case "xlink:actuate":
res.xlinkActuate = attributeVal;
break;
default:
if (startsWith(attributeName, "xmlns:")) {
if (res.namespaces === undefined) {
res.namespaces = [];
}
res.namespaces.push({
key: attributeName.substring(6),
value: attributeVal,
});
}
break;
}
}
return [res, warnings];
}
/**
* @param {Object} periodElement
* @param {string} fullMpd
* @returns {Array}
*/
export function createPeriodIntermediateRepresentation(periodElement, fullMpd) {
const [children, childrenWarnings] = parsePeriodChildren(periodElement.children, fullMpd);
const [attributes, attrsWarnings] = parsePeriodAttributes(periodElement);
const warnings = childrenWarnings.concat(attrsWarnings);
return [{ children, attributes }, warnings];
}