rx-player
Version:
Canal+ HTML5 Video Player
366 lines (365 loc) • 14.3 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 parseContentComponent from "./ContentComponent";
import parseContentProtection from "./ContentProtection";
import { createRepresentationIntermediateRepresentation } from "./Representation";
import parseSegmentBase from "./SegmentBase";
import parseSegmentList from "./SegmentList";
import parseSegmentTemplate from "./SegmentTemplate";
import { parseBoolean, parseIntOrBoolean, parseMaybeDividedNumber, parseMPDFloat, parseMPDInteger, parseScheme, textContent, ValueParser, } from "./utils";
/**
* Parse child nodes from an AdaptationSet.
* @param {Array.<ITNode | string>} adaptationSetChildren - The AdaptationSet child nodes.
* @returns {Array.<Object>}
*/
function parseAdaptationSetChildren(adaptationSetChildren) {
const children = {
baseURLs: [],
representations: [],
};
const contentProtections = [];
let warnings = [];
for (let i = 0; i < adaptationSetChildren.length; i++) {
const currentNode = adaptationSetChildren[i];
if (typeof currentNode === "string") {
continue;
}
switch (currentNode.tagName) {
case "Accessibility":
if (children.accessibilities === undefined) {
children.accessibilities = [parseScheme(currentNode)];
}
else {
children.accessibilities.push(parseScheme(currentNode));
}
break;
case "BaseURL": {
const [baseURLObj, baseURLWarnings] = parseBaseURL(currentNode);
if (baseURLObj !== undefined) {
children.baseURLs.push(baseURLObj);
}
if (baseURLWarnings.length > 0) {
warnings = warnings.concat(baseURLWarnings);
}
break;
}
case "ContentComponent":
children.contentComponent = parseContentComponent(currentNode);
break;
case "EssentialProperty":
if (isNullOrUndefined(children.essentialProperties)) {
children.essentialProperties = [parseScheme(currentNode)];
}
else {
children.essentialProperties.push(parseScheme(currentNode));
}
break;
case "InbandEventStream":
if (children.inbandEventStreams === undefined) {
children.inbandEventStreams = [];
}
children.inbandEventStreams.push(parseScheme(currentNode));
break;
case "Label": {
const label = textContent(currentNode.children);
if (label !== null && label !== undefined) {
children.label = label;
}
break;
}
case "Representation": {
const [representation, representationWarnings] = createRepresentationIntermediateRepresentation(currentNode);
children.representations.push(representation);
if (representationWarnings.length > 0) {
warnings = warnings.concat(representationWarnings);
}
break;
}
case "Role":
if (isNullOrUndefined(children.roles)) {
children.roles = [parseScheme(currentNode)];
}
else {
children.roles.push(parseScheme(currentNode));
}
break;
case "SupplementalProperty":
if (isNullOrUndefined(children.supplementalProperties)) {
children.supplementalProperties = [parseScheme(currentNode)];
}
else {
children.supplementalProperties.push(parseScheme(currentNode));
}
break;
case "SegmentBase": {
const [segmentBase, segmentBaseWarnings] = parseSegmentBase(currentNode);
children.segmentBase = segmentBase;
if (segmentBaseWarnings.length > 0) {
warnings = warnings.concat(segmentBaseWarnings);
}
break;
}
case "SegmentList": {
const [segmentList, segmentListWarnings] = parseSegmentList(currentNode);
children.segmentList = segmentList;
if (segmentListWarnings.length > 0) {
warnings = warnings.concat(segmentListWarnings);
}
break;
}
case "SegmentTemplate": {
const [segmentTemplate, segmentTemplateWarnings] = parseSegmentTemplate(currentNode);
children.segmentTemplate = segmentTemplate;
if (segmentTemplateWarnings.length > 0) {
warnings = warnings.concat(segmentTemplateWarnings);
}
break;
}
case "ContentProtection": {
const [contentProtection, contentProtectionWarnings] = parseContentProtection(currentNode);
if (contentProtectionWarnings.length > 0) {
warnings = warnings.concat(contentProtectionWarnings);
}
if (contentProtection !== undefined) {
contentProtections.push(contentProtection);
}
break;
}
// case "Rating":
// children.rating = currentNode;
// break;
// case "Viewpoint":
// children.viewpoint = currentNode;
// break;
}
}
if (contentProtections.length > 0) {
children.contentProtections = contentProtections;
}
return [children, warnings];
}
/**
* Parse every attributes from an AdaptationSet root element into a simple JS
* object.
* @param {Object} root - The AdaptationSet root element.
* @returns {Array.<Object>}
*/
function parseAdaptationSetAttributes(root) {
const parsedAdaptation = {};
const warnings = [];
const parseValue = ValueParser(parsedAdaptation, warnings);
for (const attributeName of Object.keys(root.attributes)) {
const attributeVal = root.attributes[attributeName];
if (isNullOrUndefined(attributeVal)) {
continue;
}
switch (attributeName) {
case "id":
parsedAdaptation.id = attributeVal;
break;
case "group":
parseValue(attributeVal, {
asKey: "group",
parser: parseMPDInteger,
dashName: "group",
});
break;
case "lang":
parsedAdaptation.language = attributeVal;
break;
case "contentType":
parsedAdaptation.contentType = attributeVal;
break;
case "par":
parsedAdaptation.par = attributeVal;
break;
case "minBandwidth":
parseValue(attributeVal, {
asKey: "minBitrate",
parser: parseMPDInteger,
dashName: "minBandwidth",
});
break;
case "maxBandwidth":
parseValue(attributeVal, {
asKey: "maxBitrate",
parser: parseMPDInteger,
dashName: "maxBandwidth",
});
break;
case "minWidth":
parseValue(attributeVal, {
asKey: "minWidth",
parser: parseMPDInteger,
dashName: "minWidth",
});
break;
case "maxWidth":
parseValue(attributeVal, {
asKey: "maxWidth",
parser: parseMPDInteger,
dashName: "maxWidth",
});
break;
case "minHeight":
parseValue(attributeVal, {
asKey: "minHeight",
parser: parseMPDInteger,
dashName: "minHeight",
});
break;
case "maxHeight":
parseValue(attributeVal, {
asKey: "maxHeight",
parser: parseMPDInteger,
dashName: "maxHeight",
});
break;
case "minFrameRate":
parseValue(attributeVal, {
asKey: "minFrameRate",
parser: parseMaybeDividedNumber,
dashName: "minFrameRate",
});
break;
case "maxFrameRate":
parseValue(attributeVal, {
asKey: "maxFrameRate",
parser: parseMaybeDividedNumber,
dashName: "maxFrameRate",
});
break;
case "selectionPriority":
parseValue(attributeVal, {
asKey: "selectionPriority",
parser: parseMPDInteger,
dashName: "selectionPriority",
});
break;
case "segmentAlignment":
parseValue(attributeVal, {
asKey: "segmentAlignment",
parser: parseIntOrBoolean,
dashName: "segmentAlignment",
});
break;
case "subsegmentAlignment":
parseValue(attributeVal, {
asKey: "subsegmentAlignment",
parser: parseIntOrBoolean,
dashName: "subsegmentAlignment",
});
break;
case "bitstreamSwitching":
parseValue(attributeVal, {
asKey: "bitstreamSwitching",
parser: parseBoolean,
dashName: "bitstreamSwitching",
});
break;
case "audioSamplingRate":
parsedAdaptation.audioSamplingRate = attributeVal;
break;
case "codecs":
parsedAdaptation.codecs = attributeVal;
break;
case "scte214:supplementalCodecs":
parsedAdaptation.supplementalCodecs = attributeVal;
break;
case "codingDependency":
parseValue(attributeVal, {
asKey: "codingDependency",
parser: parseBoolean,
dashName: "codingDependency",
});
break;
case "frameRate":
parseValue(attributeVal, {
asKey: "frameRate",
parser: parseMaybeDividedNumber,
dashName: "frameRate",
});
break;
case "height":
parseValue(attributeVal, {
asKey: "height",
parser: parseMPDInteger,
dashName: "height",
});
break;
case "maxPlayoutRate":
parseValue(attributeVal, {
asKey: "maxPlayoutRate",
parser: parseMPDFloat,
dashName: "maxPlayoutRate",
});
break;
case "maximumSAPPeriod":
parseValue(attributeVal, {
asKey: "maximumSAPPeriod",
parser: parseMPDFloat,
dashName: "maximumSAPPeriod",
});
break;
case "mimeType":
parsedAdaptation.mimeType = attributeVal;
break;
case "profiles":
parsedAdaptation.profiles = attributeVal;
break;
case "segmentProfiles":
parsedAdaptation.segmentProfiles = attributeVal;
break;
case "width":
parseValue(attributeVal, {
asKey: "width",
parser: parseMPDInteger,
dashName: "width",
});
break;
case "availabilityTimeOffset":
parseValue(attributeVal, {
asKey: "availabilityTimeOffset",
parser: parseMPDFloat,
dashName: "availabilityTimeOffset",
});
break;
case "availabilityTimeComplete":
parseValue(attributeVal, {
asKey: "availabilityTimeComplete",
parser: parseBoolean,
dashName: "availabilityTimeComplete",
});
break;
}
}
return [parsedAdaptation, warnings];
}
/**
* Parse an AdaptationSet element into an AdaptationSet intermediate
* representation.
* @param {Object} adaptationSetElement - The AdaptationSet root element.
* @returns {Array.<Object>}
*/
export function createAdaptationSetIntermediateRepresentation(adaptationSetElement) {
const childNodes = adaptationSetElement.children;
const [children, childrenWarnings] = parseAdaptationSetChildren(childNodes);
const [attributes, attrsWarnings] = parseAdaptationSetAttributes(adaptationSetElement);
const warnings = childrenWarnings.concat(attrsWarnings);
return [{ children, attributes }, warnings];
}