rx-player
Version:
Canal+ HTML5 Video Player
224 lines (223 loc) • 9.07 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 parseBaseURL from "./BaseURL";
import parseContentProtection from "./ContentProtection";
import parseSegmentBase from "./SegmentBase";
import parseSegmentList from "./SegmentList";
import parseSegmentTemplate from "./SegmentTemplate";
import { MPDError, parseBoolean, parseMaybeDividedNumber, parseMPDFloat, parseMPDInteger, parseScheme, ValueParser, } from "./utils";
/**
* @param {NodeList} representationChildren
* @returns {Object}
*/
function parseRepresentationChildren(representationChildren) {
const children = {
baseURLs: [],
};
const contentProtections = [];
let warnings = [];
for (let i = 0; i < representationChildren.length; i++) {
if (representationChildren[i].nodeType === Node.ELEMENT_NODE) {
const currentElement = representationChildren[i];
switch (currentElement.nodeName) {
case "BaseURL": {
const [baseURLObj, baseURLWarnings] = parseBaseURL(currentElement);
if (baseURLObj !== undefined) {
children.baseURLs.push(baseURLObj);
}
warnings = warnings.concat(baseURLWarnings);
break;
}
case "InbandEventStream":
if (children.inbandEventStreams === undefined) {
children.inbandEventStreams = [];
}
children.inbandEventStreams.push(parseScheme(currentElement));
break;
case "SegmentBase": {
const [segmentBase, segmentBaseWarnings] = parseSegmentBase(currentElement);
children.segmentBase = segmentBase;
if (segmentBaseWarnings.length > 0) {
warnings = warnings.concat(segmentBaseWarnings);
}
break;
}
case "SegmentList": {
const [segmentList, segmentListWarnings] = parseSegmentList(currentElement);
warnings = warnings.concat(segmentListWarnings);
children.segmentList = segmentList;
break;
}
case "SegmentTemplate": {
const [segmentTemplate, segmentTemplateWarnings] = parseSegmentTemplate(currentElement);
warnings = warnings.concat(segmentTemplateWarnings);
children.segmentTemplate = segmentTemplate;
break;
}
case "ContentProtection": {
const [contentProtection, contentProtectionWarnings] = parseContentProtection(currentElement);
if (contentProtectionWarnings.length > 0) {
warnings = warnings.concat(contentProtectionWarnings);
}
if (contentProtection !== undefined) {
contentProtections.push(contentProtection);
}
break;
}
case "EssentialProperty":
if (isNullOrUndefined(children.essentialProperties)) {
children.essentialProperties = [parseScheme(currentElement)];
}
else {
children.essentialProperties.push(parseScheme(currentElement));
}
break;
case "SupplementalProperty":
if (isNullOrUndefined(children.supplementalProperties)) {
children.supplementalProperties = [parseScheme(currentElement)];
}
else {
children.supplementalProperties.push(parseScheme(currentElement));
}
break;
}
}
}
if (contentProtections.length > 0) {
children.contentProtections = contentProtections;
}
return [children, warnings];
}
/**
* @param {Element} representationElement
* @returns {Array}
*/
function parseRepresentationAttributes(representationElement) {
const attributes = {};
const warnings = [];
const parseValue = ValueParser(attributes, warnings);
for (let i = 0; i < representationElement.attributes.length; i++) {
const attr = representationElement.attributes[i];
switch (attr.name) {
case "audioSamplingRate":
attributes.audioSamplingRate = attr.value;
break;
case "bandwidth":
parseValue(attr.value, {
asKey: "bitrate",
parser: parseMPDInteger,
dashName: "bandwidth",
});
break;
case "codecs":
attributes.codecs = attr.value;
break;
case "codingDependency":
parseValue(attr.value, {
asKey: "codingDependency",
parser: parseBoolean,
dashName: "codingDependency",
});
break;
case "frameRate":
parseValue(attr.value, {
asKey: "frameRate",
parser: parseMaybeDividedNumber,
dashName: "frameRate",
});
break;
case "height":
parseValue(attr.value, {
asKey: "height",
parser: parseMPDInteger,
dashName: "height",
});
break;
case "id":
attributes.id = attr.value;
break;
case "maxPlayoutRate":
parseValue(attr.value, {
asKey: "maxPlayoutRate",
parser: parseMPDFloat,
dashName: "maxPlayoutRate",
});
break;
case "maximumSAPPeriod":
parseValue(attr.value, {
asKey: "maximumSAPPeriod",
parser: parseMPDFloat,
dashName: "maximumSAPPeriod",
});
break;
case "mimeType":
attributes.mimeType = attr.value;
break;
case "profiles":
attributes.profiles = attr.value;
break;
case "qualityRanking":
parseValue(attr.value, {
asKey: "qualityRanking",
parser: parseMPDInteger,
dashName: "qualityRanking",
});
break;
case "scte214:supplementalCodecs":
attributes.supplementalCodecs = attr.value;
break;
case "segmentProfiles":
attributes.segmentProfiles = attr.value;
break;
case "width":
parseValue(attr.value, {
asKey: "width",
parser: parseMPDInteger,
dashName: "width",
});
break;
case "availabilityTimeOffset":
parseValue(attr.value, {
asKey: "availabilityTimeOffset",
parser: parseMPDFloat,
dashName: "availabilityTimeOffset",
});
break;
case "availabilityTimeComplete":
parseValue(attr.value, {
asKey: "availabilityTimeComplete",
parser: parseBoolean,
dashName: "availabilityTimeComplete",
});
break;
}
}
if (attributes.bitrate === undefined) {
warnings.push(new MPDError("No bitrate found on a Representation"));
}
return [attributes, warnings];
}
/**
* @param {Element} representationElement
* @returns {Array}
*/
export function createRepresentationIntermediateRepresentation(representationElement) {
const [children, childrenWarnings] = parseRepresentationChildren(representationElement.childNodes);
const [attributes, attrsWarnings] = parseRepresentationAttributes(representationElement);
const warnings = childrenWarnings.concat(attrsWarnings);
return [{ children, attributes }, warnings];
}