rx-player
Version:
Canal+ HTML5 Video Player
102 lines (101 loc) • 3.42 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 { parseMPDInteger, ValueParser } from "./utils";
/**
* Parse the EventStream node to extract Event nodes and their
* content.
* @param {Element} element
* @returns {Array}
*/
export default function parseEventStream(element) {
const eventStreamIR = {
children: { events: [] },
attributes: {},
};
let warnings = [];
// 1 - Parse attributes
const parseValue = ValueParser(eventStreamIR.attributes, warnings);
for (let i = 0; i < element.attributes.length; i++) {
const attr = element.attributes[i];
switch (attr.name) {
case "schemeIdUri":
eventStreamIR.attributes.schemeIdUri = attr.value;
break;
case "timescale":
parseValue(attr.value, {
asKey: "timescale",
parser: parseMPDInteger,
dashName: "timescale",
});
break;
case "value":
eventStreamIR.attributes.value = attr.value;
break;
}
}
for (let i = 0; i < element.childNodes.length; i++) {
if (element.childNodes[i].nodeType === Node.ELEMENT_NODE) {
const currentElement = element.childNodes[i];
switch (currentElement.nodeName) {
case "Event": {
const [event, eventWarnings] = parseEvent(currentElement);
eventStreamIR.children.events.push(event);
if (eventWarnings.length > 0) {
warnings = warnings.concat(eventWarnings);
}
break;
}
}
}
}
return [eventStreamIR, warnings];
}
/**
* Parse `Event` Element, as found in EventStream nodes.
* @param {Element} element
* @returns {Array}
*/
function parseEvent(element) {
const eventIR = {
eventStreamData: element,
};
const warnings = [];
// 1 - Parse attributes
const parseValue = ValueParser(eventIR, warnings);
for (let i = 0; i < element.attributes.length; i++) {
const attr = element.attributes[i];
switch (attr.name) {
case "presentationTime":
parseValue(attr.value, {
asKey: "presentationTime",
parser: parseMPDInteger,
dashName: "presentationTime",
});
break;
case "duration":
parseValue(attr.value, {
asKey: "duration",
parser: parseMPDInteger,
dashName: "duration",
});
break;
case "id":
eventIR.id = attr.value;
break;
}
}
return [eventIR, warnings];
}