@svta/common-media-library/dist/cjs/iso/bmff/parsers/emsg.js

A common library for media playback in JavaScript

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.emsg = emsg;
/**
 * Parse an EventMessageBox from an IsoView
 *
 * @param view - The IsoView to read data from
 *
 * @returns A parsed EventMessageBox
 *
 * @group ISOBMFF
 *
 * @beta
 */
function emsg(view) {
    const { readUint, readString, readData } = view;
    const result = { ...view.readFullBox() };
    if (result.version == 1) {
        result.timescale = readUint(4);
        result.presentationTime = readUint(8);
        result.eventDuration = readUint(4);
        result.id = readUint(4);
        result.schemeIdUri = readString(-1);
        result.value = readString(-1);
    }
    else {
        result.schemeIdUri = readString(-1);
        result.value = readString(-1);
        result.timescale = readUint(4);
        result.presentationTimeDelta = readUint(4);
        result.eventDuration = readUint(4);
        result.id = readUint(4);
    }
    result.messageData = readData(-1);
    return result;
}
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