msc-node
Version:
mediasoup client side Node.js library
87 lines (86 loc) • 3.25 kB
JavaScript
;
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.mangleRtpParameters = exports.getCapabilities = void 0;
const utils = __importStar(require("../../utils"));
/**
* Normalize ORTC based Edge's RTCRtpReceiver.getCapabilities() to produce a full
* compliant ORTC RTCRtpCapabilities.
*/
function getCapabilities() {
const nativeCaps = RTCRtpReceiver.getCapabilities();
const caps = utils.clone(nativeCaps, {});
for (const codec of caps.codecs) {
// Rename numChannels to channels.
codec.channels = codec.numChannels;
delete codec.numChannels;
// Add mimeType.
codec.mimeType = codec.mimeType || `${codec.kind}/${codec.name}`;
// NOTE: Edge sets some numeric parameters as string rather than number. Fix them.
if (codec.parameters) {
const parameters = codec.parameters;
if (parameters.apt) {
parameters.apt = Number(parameters.apt);
}
if (parameters['packetization-mode']) {
parameters['packetization-mode'] = Number(parameters['packetization-mode']);
}
}
// Delete emty parameter String in rtcpFeedback.
for (const feedback of codec.rtcpFeedback || []) {
if (!feedback.parameter) {
feedback.parameter = '';
}
}
}
return caps;
}
exports.getCapabilities = getCapabilities;
/**
* Generate RTCRtpParameters as ORTC based Edge likes.
*/
function mangleRtpParameters(rtpParameters) {
const params = utils.clone(rtpParameters, {});
// Rename mid to muxId.
if (params.mid) {
params.muxId = params.mid;
delete params.mid;
}
for (const codec of params.codecs) {
// Rename channels to numChannels.
if (codec.channels) {
codec.numChannels = codec.channels;
delete codec.channels;
}
// Add codec.name (requried by Edge).
if (codec.mimeType && !codec.name) {
codec.name = codec.mimeType.split('/')[1];
}
// Remove mimeType.
delete codec.mimeType;
}
return params;
}
exports.mangleRtpParameters = mangleRtpParameters;