3201 lines
111 KiB
JavaScript
3201 lines
111 KiB
JavaScript
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(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.adapter = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
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/* eslint-env node */
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'use strict';
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// SDP helpers.
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var SDPUtils = {};
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// Generate an alphanumeric identifier for cname or mids.
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// TODO: use UUIDs instead? https://gist.github.com/jed/982883
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SDPUtils.generateIdentifier = function() {
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return Math.random().toString(36).substr(2, 10);
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};
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// The RTCP CNAME used by all peerconnections from the same JS.
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SDPUtils.localCName = SDPUtils.generateIdentifier();
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// Splits SDP into lines, dealing with both CRLF and LF.
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SDPUtils.splitLines = function(blob) {
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return blob.trim().split('\n').map(function(line) {
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return line.trim();
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});
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};
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// Splits SDP into sessionpart and mediasections. Ensures CRLF.
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SDPUtils.splitSections = function(blob) {
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var parts = blob.split('\nm=');
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return parts.map(function(part, index) {
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return (index > 0 ? 'm=' + part : part).trim() + '\r\n';
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});
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};
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// Returns lines that start with a certain prefix.
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SDPUtils.matchPrefix = function(blob, prefix) {
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return SDPUtils.splitLines(blob).filter(function(line) {
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return line.indexOf(prefix) === 0;
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});
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};
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// Parses an ICE candidate line. Sample input:
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// candidate:702786350 2 udp 41819902 8.8.8.8 60769 typ relay raddr 8.8.8.8
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// rport 55996"
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SDPUtils.parseCandidate = function(line) {
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var parts;
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// Parse both variants.
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if (line.indexOf('a=candidate:') === 0) {
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parts = line.substring(12).split(' ');
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} else {
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parts = line.substring(10).split(' ');
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}
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var candidate = {
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foundation: parts[0],
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component: parts[1],
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protocol: parts[2].toLowerCase(),
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priority: parseInt(parts[3], 10),
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ip: parts[4],
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port: parseInt(parts[5], 10),
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// skip parts[6] == 'typ'
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type: parts[7]
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};
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for (var i = 8; i < parts.length; i += 2) {
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switch (parts[i]) {
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case 'raddr':
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candidate.relatedAddress = parts[i + 1];
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break;
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case 'rport':
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candidate.relatedPort = parseInt(parts[i + 1], 10);
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break;
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case 'tcptype':
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candidate.tcpType = parts[i + 1];
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break;
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default: // Unknown extensions are silently ignored.
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break;
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}
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}
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return candidate;
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};
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// Translates a candidate object into SDP candidate attribute.
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SDPUtils.writeCandidate = function(candidate) {
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var sdp = [];
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sdp.push(candidate.foundation);
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sdp.push(candidate.component);
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sdp.push(candidate.protocol.toUpperCase());
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sdp.push(candidate.priority);
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sdp.push(candidate.ip);
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sdp.push(candidate.port);
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var type = candidate.type;
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sdp.push('typ');
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sdp.push(type);
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if (type !== 'host' && candidate.relatedAddress &&
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candidate.relatedPort) {
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sdp.push('raddr');
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sdp.push(candidate.relatedAddress); // was: relAddr
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sdp.push('rport');
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sdp.push(candidate.relatedPort); // was: relPort
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}
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if (candidate.tcpType && candidate.protocol.toLowerCase() === 'tcp') {
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sdp.push('tcptype');
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sdp.push(candidate.tcpType);
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}
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return 'candidate:' + sdp.join(' ');
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};
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// Parses an rtpmap line, returns RTCRtpCoddecParameters. Sample input:
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// a=rtpmap:111 opus/48000/2
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SDPUtils.parseRtpMap = function(line) {
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var parts = line.substr(9).split(' ');
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var parsed = {
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payloadType: parseInt(parts.shift(), 10) // was: id
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};
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parts = parts[0].split('/');
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parsed.name = parts[0];
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parsed.clockRate = parseInt(parts[1], 10); // was: clockrate
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// was: channels
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parsed.numChannels = parts.length === 3 ? parseInt(parts[2], 10) : 1;
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return parsed;
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};
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// Generate an a=rtpmap line from RTCRtpCodecCapability or
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// RTCRtpCodecParameters.
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SDPUtils.writeRtpMap = function(codec) {
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var pt = codec.payloadType;
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if (codec.preferredPayloadType !== undefined) {
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pt = codec.preferredPayloadType;
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}
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return 'a=rtpmap:' + pt + ' ' + codec.name + '/' + codec.clockRate +
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(codec.numChannels !== 1 ? '/' + codec.numChannels : '') + '\r\n';
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};
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// Parses an a=extmap line (headerextension from RFC 5285). Sample input:
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// a=extmap:2 urn:ietf:params:rtp-hdrext:toffset
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SDPUtils.parseExtmap = function(line) {
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var parts = line.substr(9).split(' ');
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return {
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id: parseInt(parts[0], 10),
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uri: parts[1]
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};
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};
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// Generates a=extmap line from RTCRtpHeaderExtensionParameters or
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// RTCRtpHeaderExtension.
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SDPUtils.writeExtmap = function(headerExtension) {
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return 'a=extmap:' + (headerExtension.id || headerExtension.preferredId) +
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' ' + headerExtension.uri + '\r\n';
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};
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// Parses an ftmp line, returns dictionary. Sample input:
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// a=fmtp:96 vbr=on;cng=on
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// Also deals with vbr=on; cng=on
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SDPUtils.parseFmtp = function(line) {
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var parsed = {};
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var kv;
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var parts = line.substr(line.indexOf(' ') + 1).split(';');
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for (var j = 0; j < parts.length; j++) {
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kv = parts[j].trim().split('=');
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parsed[kv[0].trim()] = kv[1];
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}
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return parsed;
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};
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// Generates an a=ftmp line from RTCRtpCodecCapability or RTCRtpCodecParameters.
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SDPUtils.writeFmtp = function(codec) {
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var line = '';
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var pt = codec.payloadType;
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if (codec.preferredPayloadType !== undefined) {
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pt = codec.preferredPayloadType;
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}
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if (codec.parameters && Object.keys(codec.parameters).length) {
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var params = [];
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Object.keys(codec.parameters).forEach(function(param) {
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params.push(param + '=' + codec.parameters[param]);
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});
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line += 'a=fmtp:' + pt + ' ' + params.join(';') + '\r\n';
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}
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return line;
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};
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// Parses an rtcp-fb line, returns RTCPRtcpFeedback object. Sample input:
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// a=rtcp-fb:98 nack rpsi
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SDPUtils.parseRtcpFb = function(line) {
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var parts = line.substr(line.indexOf(' ') + 1).split(' ');
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return {
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type: parts.shift(),
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parameter: parts.join(' ')
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};
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};
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// Generate a=rtcp-fb lines from RTCRtpCodecCapability or RTCRtpCodecParameters.
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SDPUtils.writeRtcpFb = function(codec) {
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var lines = '';
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var pt = codec.payloadType;
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if (codec.preferredPayloadType !== undefined) {
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pt = codec.preferredPayloadType;
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}
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if (codec.rtcpFeedback && codec.rtcpFeedback.length) {
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// FIXME: special handling for trr-int?
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codec.rtcpFeedback.forEach(function(fb) {
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lines += 'a=rtcp-fb:' + pt + ' ' + fb.type +
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(fb.parameter && fb.parameter.length ? ' ' + fb.parameter : '') +
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'\r\n';
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});
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}
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return lines;
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};
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// Parses an RFC 5576 ssrc media attribute. Sample input:
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// a=ssrc:3735928559 cname:something
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SDPUtils.parseSsrcMedia = function(line) {
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var sp = line.indexOf(' ');
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var parts = {
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ssrc: parseInt(line.substr(7, sp - 7), 10)
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};
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var colon = line.indexOf(':', sp);
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if (colon > -1) {
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parts.attribute = line.substr(sp + 1, colon - sp - 1);
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parts.value = line.substr(colon + 1);
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} else {
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parts.attribute = line.substr(sp + 1);
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}
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return parts;
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};
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// Extracts DTLS parameters from SDP media section or sessionpart.
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// FIXME: for consistency with other functions this should only
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// get the fingerprint line as input. See also getIceParameters.
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SDPUtils.getDtlsParameters = function(mediaSection, sessionpart) {
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var lines = SDPUtils.splitLines(mediaSection);
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// Search in session part, too.
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lines = lines.concat(SDPUtils.splitLines(sessionpart));
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var fpLine = lines.filter(function(line) {
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return line.indexOf('a=fingerprint:') === 0;
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})[0].substr(14);
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// Note: a=setup line is ignored since we use the 'auto' role.
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// Note2: 'algorithm' is not case sensitive except in Edge.
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var dtlsParameters = {
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role: 'auto',
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fingerprints: [{
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algorithm: fpLine.split(' ')[0].toLowerCase(),
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value: fpLine.split(' ')[1]
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}]
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};
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return dtlsParameters;
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};
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// Serializes DTLS parameters to SDP.
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SDPUtils.writeDtlsParameters = function(params, setupType) {
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var sdp = 'a=setup:' + setupType + '\r\n';
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params.fingerprints.forEach(function(fp) {
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sdp += 'a=fingerprint:' + fp.algorithm + ' ' + fp.value + '\r\n';
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});
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return sdp;
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};
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// Parses ICE information from SDP media section or sessionpart.
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// FIXME: for consistency with other functions this should only
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// get the ice-ufrag and ice-pwd lines as input.
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SDPUtils.getIceParameters = function(mediaSection, sessionpart) {
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var lines = SDPUtils.splitLines(mediaSection);
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// Search in session part, too.
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lines = lines.concat(SDPUtils.splitLines(sessionpart));
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var iceParameters = {
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usernameFragment: lines.filter(function(line) {
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return line.indexOf('a=ice-ufrag:') === 0;
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})[0].substr(12),
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password: lines.filter(function(line) {
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return line.indexOf('a=ice-pwd:') === 0;
|
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})[0].substr(10)
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};
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return iceParameters;
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};
|
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// Serializes ICE parameters to SDP.
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SDPUtils.writeIceParameters = function(params) {
|
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return 'a=ice-ufrag:' + params.usernameFragment + '\r\n' +
|
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'a=ice-pwd:' + params.password + '\r\n';
|
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};
|
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|
|||
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// Parses the SDP media section and returns RTCRtpParameters.
|
|||
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SDPUtils.parseRtpParameters = function(mediaSection) {
|
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var description = {
|
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codecs: [],
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|||
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headerExtensions: [],
|
|||
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fecMechanisms: [],
|
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rtcp: []
|
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};
|
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var lines = SDPUtils.splitLines(mediaSection);
|
|||
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var mline = lines[0].split(' ');
|
|||
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for (var i = 3; i < mline.length; i++) { // find all codecs from mline[3..]
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|||
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var pt = mline[i];
|
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var rtpmapline = SDPUtils.matchPrefix(
|
|||
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mediaSection, 'a=rtpmap:' + pt + ' ')[0];
|
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if (rtpmapline) {
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var codec = SDPUtils.parseRtpMap(rtpmapline);
|
|||
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var fmtps = SDPUtils.matchPrefix(
|
|||
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mediaSection, 'a=fmtp:' + pt + ' ');
|
|||
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// Only the first a=fmtp:<pt> is considered.
|
|||
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codec.parameters = fmtps.length ? SDPUtils.parseFmtp(fmtps[0]) : {};
|
|||
|
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codec.rtcpFeedback = SDPUtils.matchPrefix(
|
|||
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mediaSection, 'a=rtcp-fb:' + pt + ' ')
|
|||
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.map(SDPUtils.parseRtcpFb);
|
|||
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description.codecs.push(codec);
|
|||
|
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// parse FEC mechanisms from rtpmap lines.
|
|||
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switch (codec.name.toUpperCase()) {
|
|||
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case 'RED':
|
|||
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case 'ULPFEC':
|
|||
|
|
description.fecMechanisms.push(codec.name.toUpperCase());
|
|||
|
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break;
|
|||
|
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default: // only RED and ULPFEC are recognized as FEC mechanisms.
|
|||
|
|
break;
|
|||
|
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}
|
|||
|
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}
|
|||
|
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}
|
|||
|
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SDPUtils.matchPrefix(mediaSection, 'a=extmap:').forEach(function(line) {
|
|||
|
|
description.headerExtensions.push(SDPUtils.parseExtmap(line));
|
|||
|
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});
|
|||
|
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// FIXME: parse rtcp.
|
|||
|
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return description;
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
// Generates parts of the SDP media section describing the capabilities /
|
|||
|
|
// parameters.
|
|||
|
|
SDPUtils.writeRtpDescription = function(kind, caps) {
|
|||
|
|
var sdp = '';
|
|||
|
|
|
|||
|
|
// Build the mline.
|
|||
|
|
sdp += 'm=' + kind + ' ';
|
|||
|
|
sdp += caps.codecs.length > 0 ? '9' : '0'; // reject if no codecs.
|
|||
|
|
sdp += ' UDP/TLS/RTP/SAVPF ';
|
|||
|
|
sdp += caps.codecs.map(function(codec) {
|
|||
|
|
if (codec.preferredPayloadType !== undefined) {
|
|||
|
|
return codec.preferredPayloadType;
|
|||
|
|
}
|
|||
|
|
return codec.payloadType;
|
|||
|
|
}).join(' ') + '\r\n';
|
|||
|
|
|
|||
|
|
sdp += 'c=IN IP4 0.0.0.0\r\n';
|
|||
|
|
sdp += 'a=rtcp:9 IN IP4 0.0.0.0\r\n';
|
|||
|
|
|
|||
|
|
// Add a=rtpmap lines for each codec. Also fmtp and rtcp-fb.
|
|||
|
|
caps.codecs.forEach(function(codec) {
|
|||
|
|
sdp += SDPUtils.writeRtpMap(codec);
|
|||
|
|
sdp += SDPUtils.writeFmtp(codec);
|
|||
|
|
sdp += SDPUtils.writeRtcpFb(codec);
|
|||
|
|
});
|
|||
|
|
var maxptime = 0;
|
|||
|
|
caps.codecs.forEach(function(codec) {
|
|||
|
|
if (codec.maxptime > maxptime) {
|
|||
|
|
maxptime = codec.maxptime;
|
|||
|
|
}
|
|||
|
|
});
|
|||
|
|
if (maxptime > 0) {
|
|||
|
|
sdp += 'a=maxptime:' + maxptime + '\r\n';
|
|||
|
|
}
|
|||
|
|
sdp += 'a=rtcp-mux\r\n';
|
|||
|
|
|
|||
|
|
caps.headerExtensions.forEach(function(extension) {
|
|||
|
|
sdp += SDPUtils.writeExtmap(extension);
|
|||
|
|
});
|
|||
|
|
// FIXME: write fecMechanisms.
|
|||
|
|
return sdp;
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
// Parses the SDP media section and returns an array of
|
|||
|
|
// RTCRtpEncodingParameters.
|
|||
|
|
SDPUtils.parseRtpEncodingParameters = function(mediaSection) {
|
|||
|
|
var encodingParameters = [];
|
|||
|
|
var description = SDPUtils.parseRtpParameters(mediaSection);
|
|||
|
|
var hasRed = description.fecMechanisms.indexOf('RED') !== -1;
|
|||
|
|
var hasUlpfec = description.fecMechanisms.indexOf('ULPFEC') !== -1;
|
|||
|
|
|
|||
|
|
// filter a=ssrc:... cname:, ignore PlanB-msid
|
|||
|
|
var ssrcs = SDPUtils.matchPrefix(mediaSection, 'a=ssrc:')
|
|||
|
|
.map(function(line) {
|
|||
|
|
return SDPUtils.parseSsrcMedia(line);
|
|||
|
|
})
|
|||
|
|
.filter(function(parts) {
|
|||
|
|
return parts.attribute === 'cname';
|
|||
|
|
});
|
|||
|
|
var primarySsrc = ssrcs.length > 0 && ssrcs[0].ssrc;
|
|||
|
|
var secondarySsrc;
|
|||
|
|
|
|||
|
|
var flows = SDPUtils.matchPrefix(mediaSection, 'a=ssrc-group:FID')
|
|||
|
|
.map(function(line) {
|
|||
|
|
var parts = line.split(' ');
|
|||
|
|
parts.shift();
|
|||
|
|
return parts.map(function(part) {
|
|||
|
|
return parseInt(part, 10);
|
|||
|
|
});
|
|||
|
|
});
|
|||
|
|
if (flows.length > 0 && flows[0].length > 1 && flows[0][0] === primarySsrc) {
|
|||
|
|
secondarySsrc = flows[0][1];
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
description.codecs.forEach(function(codec) {
|
|||
|
|
if (codec.name.toUpperCase() === 'RTX' && codec.parameters.apt) {
|
|||
|
|
var encParam = {
|
|||
|
|
ssrc: primarySsrc,
|
|||
|
|
codecPayloadType: parseInt(codec.parameters.apt, 10),
|
|||
|
|
rtx: {
|
|||
|
|
ssrc: secondarySsrc
|
|||
|
|
}
|
|||
|
|
};
|
|||
|
|
encodingParameters.push(encParam);
|
|||
|
|
if (hasRed) {
|
|||
|
|
encParam = JSON.parse(JSON.stringify(encParam));
|
|||
|
|
encParam.fec = {
|
|||
|
|
ssrc: secondarySsrc,
|
|||
|
|
mechanism: hasUlpfec ? 'red+ulpfec' : 'red'
|
|||
|
|
};
|
|||
|
|
encodingParameters.push(encParam);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
});
|
|||
|
|
if (encodingParameters.length === 0 && primarySsrc) {
|
|||
|
|
encodingParameters.push({
|
|||
|
|
ssrc: primarySsrc
|
|||
|
|
});
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// we support both b=AS and b=TIAS but interpret AS as TIAS.
|
|||
|
|
var bandwidth = SDPUtils.matchPrefix(mediaSection, 'b=');
|
|||
|
|
if (bandwidth.length) {
|
|||
|
|
if (bandwidth[0].indexOf('b=TIAS:') === 0) {
|
|||
|
|
bandwidth = parseInt(bandwidth[0].substr(7), 10);
|
|||
|
|
} else if (bandwidth[0].indexOf('b=AS:') === 0) {
|
|||
|
|
bandwidth = parseInt(bandwidth[0].substr(5), 10);
|
|||
|
|
}
|
|||
|
|
encodingParameters.forEach(function(params) {
|
|||
|
|
params.maxBitrate = bandwidth;
|
|||
|
|
});
|
|||
|
|
}
|
|||
|
|
return encodingParameters;
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
// parses http://draft.ortc.org/#rtcrtcpparameters*
|
|||
|
|
SDPUtils.parseRtcpParameters = function(mediaSection) {
|
|||
|
|
var rtcpParameters = {};
|
|||
|
|
|
|||
|
|
var cname;
|
|||
|
|
// Gets the first SSRC. Note that with RTX there might be multiple
|
|||
|
|
// SSRCs.
|
|||
|
|
var remoteSsrc = SDPUtils.matchPrefix(mediaSection, 'a=ssrc:')
|
|||
|
|
.map(function(line) {
|
|||
|
|
return SDPUtils.parseSsrcMedia(line);
|
|||
|
|
})
|
|||
|
|
.filter(function(obj) {
|
|||
|
|
return obj.attribute === 'cname';
|
|||
|
|
})[0];
|
|||
|
|
if (remoteSsrc) {
|
|||
|
|
rtcpParameters.cname = remoteSsrc.value;
|
|||
|
|
rtcpParameters.ssrc = remoteSsrc.ssrc;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// Edge uses the compound attribute instead of reducedSize
|
|||
|
|
// compound is !reducedSize
|
|||
|
|
var rsize = SDPUtils.matchPrefix(mediaSection, 'a=rtcp-rsize');
|
|||
|
|
rtcpParameters.reducedSize = rsize.length > 0;
|
|||
|
|
rtcpParameters.compound = rsize.length === 0;
|
|||
|
|
|
|||
|
|
// parses the rtcp-mux attrіbute.
|
|||
|
|
// Note that Edge does not support unmuxed RTCP.
|
|||
|
|
var mux = SDPUtils.matchPrefix(mediaSection, 'a=rtcp-mux');
|
|||
|
|
rtcpParameters.mux = mux.length > 0;
|
|||
|
|
|
|||
|
|
return rtcpParameters;
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
// parses either a=msid: or a=ssrc:... msid lines an returns
|
|||
|
|
// the id of the MediaStream and MediaStreamTrack.
|
|||
|
|
SDPUtils.parseMsid = function(mediaSection) {
|
|||
|
|
var parts;
|
|||
|
|
var spec = SDPUtils.matchPrefix(mediaSection, 'a=msid:');
|
|||
|
|
if (spec.length === 1) {
|
|||
|
|
parts = spec[0].substr(7).split(' ');
|
|||
|
|
return {stream: parts[0], track: parts[1]};
|
|||
|
|
}
|
|||
|
|
var planB = SDPUtils.matchPrefix(mediaSection, 'a=ssrc:')
|
|||
|
|
.map(function(line) {
|
|||
|
|
return SDPUtils.parseSsrcMedia(line);
|
|||
|
|
})
|
|||
|
|
.filter(function(parts) {
|
|||
|
|
return parts.attribute === 'msid';
|
|||
|
|
});
|
|||
|
|
if (planB.length > 0) {
|
|||
|
|
parts = planB[0].value.split(' ');
|
|||
|
|
return {stream: parts[0], track: parts[1]};
|
|||
|
|
}
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
SDPUtils.writeSessionBoilerplate = function() {
|
|||
|
|
// FIXME: sess-id should be an NTP timestamp.
|
|||
|
|
return 'v=0\r\n' +
|
|||
|
|
'o=thisisadapterortc 8169639915646943137 2 IN IP4 127.0.0.1\r\n' +
|
|||
|
|
's=-\r\n' +
|
|||
|
|
't=0 0\r\n';
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
SDPUtils.writeMediaSection = function(transceiver, caps, type, stream) {
|
|||
|
|
var sdp = SDPUtils.writeRtpDescription(transceiver.kind, caps);
|
|||
|
|
|
|||
|
|
// Map ICE parameters (ufrag, pwd) to SDP.
|
|||
|
|
sdp += SDPUtils.writeIceParameters(
|
|||
|
|
transceiver.iceGatherer.getLocalParameters());
|
|||
|
|
|
|||
|
|
// Map DTLS parameters to SDP.
|
|||
|
|
sdp += SDPUtils.writeDtlsParameters(
|
|||
|
|
transceiver.dtlsTransport.getLocalParameters(),
|
|||
|
|
type === 'offer' ? 'actpass' : 'active');
|
|||
|
|
|
|||
|
|
sdp += 'a=mid:' + transceiver.mid + '\r\n';
|
|||
|
|
|
|||
|
|
if (transceiver.rtpSender && transceiver.rtpReceiver) {
|
|||
|
|
sdp += 'a=sendrecv\r\n';
|
|||
|
|
} else if (transceiver.rtpSender) {
|
|||
|
|
sdp += 'a=sendonly\r\n';
|
|||
|
|
} else if (transceiver.rtpReceiver) {
|
|||
|
|
sdp += 'a=recvonly\r\n';
|
|||
|
|
} else {
|
|||
|
|
sdp += 'a=inactive\r\n';
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if (transceiver.rtpSender) {
|
|||
|
|
// spec.
|
|||
|
|
var msid = 'msid:' + stream.id + ' ' +
|
|||
|
|
transceiver.rtpSender.track.id + '\r\n';
|
|||
|
|
sdp += 'a=' + msid;
|
|||
|
|
|
|||
|
|
// for Chrome.
|
|||
|
|
sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].ssrc +
|
|||
|
|
' ' + msid;
|
|||
|
|
if (transceiver.sendEncodingParameters[0].rtx) {
|
|||
|
|
sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].rtx.ssrc +
|
|||
|
|
' ' + msid;
|
|||
|
|
sdp += 'a=ssrc-group:FID ' +
|
|||
|
|
transceiver.sendEncodingParameters[0].ssrc + ' ' +
|
|||
|
|
transceiver.sendEncodingParameters[0].rtx.ssrc +
|
|||
|
|
'\r\n';
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
// FIXME: this should be written by writeRtpDescription.
|
|||
|
|
sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].ssrc +
|
|||
|
|
' cname:' + SDPUtils.localCName + '\r\n';
|
|||
|
|
if (transceiver.rtpSender && transceiver.sendEncodingParameters[0].rtx) {
|
|||
|
|
sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].rtx.ssrc +
|
|||
|
|
' cname:' + SDPUtils.localCName + '\r\n';
|
|||
|
|
}
|
|||
|
|
return sdp;
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
// Gets the direction from the mediaSection or the sessionpart.
|
|||
|
|
SDPUtils.getDirection = function(mediaSection, sessionpart) {
|
|||
|
|
// Look for sendrecv, sendonly, recvonly, inactive, default to sendrecv.
|
|||
|
|
var lines = SDPUtils.splitLines(mediaSection);
|
|||
|
|
for (var i = 0; i < lines.length; i++) {
|
|||
|
|
switch (lines[i]) {
|
|||
|
|
case 'a=sendrecv':
|
|||
|
|
case 'a=sendonly':
|
|||
|
|
case 'a=recvonly':
|
|||
|
|
case 'a=inactive':
|
|||
|
|
return lines[i].substr(2);
|
|||
|
|
default:
|
|||
|
|
// FIXME: What should happen here?
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
if (sessionpart) {
|
|||
|
|
return SDPUtils.getDirection(sessionpart);
|
|||
|
|
}
|
|||
|
|
return 'sendrecv';
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
SDPUtils.getKind = function(mediaSection) {
|
|||
|
|
var lines = SDPUtils.splitLines(mediaSection);
|
|||
|
|
var mline = lines[0].split(' ');
|
|||
|
|
return mline[0].substr(2);
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
SDPUtils.isRejected = function(mediaSection) {
|
|||
|
|
return mediaSection.split(' ', 2)[1] === '0';
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
// Expose public methods.
|
|||
|
|
module.exports = SDPUtils;
|
|||
|
|
|
|||
|
|
},{}],2:[function(require,module,exports){
|
|||
|
|
/*
|
|||
|
|
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
|
|||
|
|
*
|
|||
|
|
* Use of this source code is governed by a BSD-style license
|
|||
|
|
* that can be found in the LICENSE file in the root of the source
|
|||
|
|
* tree.
|
|||
|
|
*/
|
|||
|
|
/* eslint-env node */
|
|||
|
|
|
|||
|
|
'use strict';
|
|||
|
|
|
|||
|
|
// Shimming starts here.
|
|||
|
|
(function() {
|
|||
|
|
// Utils.
|
|||
|
|
var utils = require('./utils');
|
|||
|
|
var logging = utils.log;
|
|||
|
|
var browserDetails = utils.browserDetails;
|
|||
|
|
// Export to the adapter global object visible in the browser.
|
|||
|
|
module.exports.browserDetails = browserDetails;
|
|||
|
|
module.exports.extractVersion = utils.extractVersion;
|
|||
|
|
module.exports.disableLog = utils.disableLog;
|
|||
|
|
|
|||
|
|
// Uncomment the line below if you want logging to occur, including logging
|
|||
|
|
// for the switch statement below. Can also be turned on in the browser via
|
|||
|
|
// adapter.disableLog(false), but then logging from the switch statement below
|
|||
|
|
// will not appear.
|
|||
|
|
// require('./utils').disableLog(false);
|
|||
|
|
|
|||
|
|
// Browser shims.
|
|||
|
|
var chromeShim = require('./chrome/chrome_shim') || null;
|
|||
|
|
var edgeShim = require('./edge/edge_shim') || null;
|
|||
|
|
var firefoxShim = require('./firefox/firefox_shim') || null;
|
|||
|
|
var safariShim = require('./safari/safari_shim') || null;
|
|||
|
|
|
|||
|
|
// Shim browser if found.
|
|||
|
|
switch (browserDetails.browser) {
|
|||
|
|
case 'chrome':
|
|||
|
|
if (!chromeShim || !chromeShim.shimPeerConnection) {
|
|||
|
|
logging('Chrome shim is not included in this adapter release.');
|
|||
|
|
return;
|
|||
|
|
}
|
|||
|
|
logging('adapter.js shimming chrome.');
|
|||
|
|
// Export to the adapter global object visible in the browser.
|
|||
|
|
module.exports.browserShim = chromeShim;
|
|||
|
|
|
|||
|
|
chromeShim.shimGetUserMedia();
|
|||
|
|
chromeShim.shimMediaStream();
|
|||
|
|
utils.shimCreateObjectURL();
|
|||
|
|
chromeShim.shimSourceObject();
|
|||
|
|
chromeShim.shimPeerConnection();
|
|||
|
|
chromeShim.shimOnTrack();
|
|||
|
|
chromeShim.shimGetSendersWithDtmf();
|
|||
|
|
break;
|
|||
|
|
case 'firefox':
|
|||
|
|
if (!firefoxShim || !firefoxShim.shimPeerConnection) {
|
|||
|
|
logging('Firefox shim is not included in this adapter release.');
|
|||
|
|
return;
|
|||
|
|
}
|
|||
|
|
logging('adapter.js shimming firefox.');
|
|||
|
|
// Export to the adapter global object visible in the browser.
|
|||
|
|
module.exports.browserShim = firefoxShim;
|
|||
|
|
|
|||
|
|
firefoxShim.shimGetUserMedia();
|
|||
|
|
utils.shimCreateObjectURL();
|
|||
|
|
firefoxShim.shimSourceObject();
|
|||
|
|
firefoxShim.shimPeerConnection();
|
|||
|
|
firefoxShim.shimOnTrack();
|
|||
|
|
break;
|
|||
|
|
case 'edge':
|
|||
|
|
if (!edgeShim || !edgeShim.shimPeerConnection) {
|
|||
|
|
logging('MS edge shim is not included in this adapter release.');
|
|||
|
|
return;
|
|||
|
|
}
|
|||
|
|
logging('adapter.js shimming edge.');
|
|||
|
|
// Export to the adapter global object visible in the browser.
|
|||
|
|
module.exports.browserShim = edgeShim;
|
|||
|
|
|
|||
|
|
edgeShim.shimGetUserMedia();
|
|||
|
|
utils.shimCreateObjectURL();
|
|||
|
|
edgeShim.shimPeerConnection();
|
|||
|
|
edgeShim.shimReplaceTrack();
|
|||
|
|
break;
|
|||
|
|
case 'safari':
|
|||
|
|
if (!safariShim) {
|
|||
|
|
logging('Safari shim is not included in this adapter release.');
|
|||
|
|
return;
|
|||
|
|
}
|
|||
|
|
logging('adapter.js shimming safari.');
|
|||
|
|
// Export to the adapter global object visible in the browser.
|
|||
|
|
module.exports.browserShim = safariShim;
|
|||
|
|
|
|||
|
|
safariShim.shimOnAddStream();
|
|||
|
|
safariShim.shimGetUserMedia();
|
|||
|
|
break;
|
|||
|
|
default:
|
|||
|
|
logging('Unsupported browser!');
|
|||
|
|
}
|
|||
|
|
})();
|
|||
|
|
|
|||
|
|
},{"./chrome/chrome_shim":3,"./edge/edge_shim":5,"./firefox/firefox_shim":7,"./safari/safari_shim":9,"./utils":10}],3:[function(require,module,exports){
|
|||
|
|
|
|||
|
|
/*
|
|||
|
|
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
|
|||
|
|
*
|
|||
|
|
* Use of this source code is governed by a BSD-style license
|
|||
|
|
* that can be found in the LICENSE file in the root of the source
|
|||
|
|
* tree.
|
|||
|
|
*/
|
|||
|
|
/* eslint-env node */
|
|||
|
|
'use strict';
|
|||
|
|
var logging = require('../utils.js').log;
|
|||
|
|
var browserDetails = require('../utils.js').browserDetails;
|
|||
|
|
|
|||
|
|
var chromeShim = {
|
|||
|
|
shimMediaStream: function() {
|
|||
|
|
window.MediaStream = window.MediaStream || window.webkitMediaStream;
|
|||
|
|
},
|
|||
|
|
|
|||
|
|
shimOnTrack: function() {
|
|||
|
|
if (typeof window === 'object' && window.RTCPeerConnection && !('ontrack' in
|
|||
|
|
window.RTCPeerConnection.prototype)) {
|
|||
|
|
Object.defineProperty(window.RTCPeerConnection.prototype, 'ontrack', {
|
|||
|
|
get: function() {
|
|||
|
|
return this._ontrack;
|
|||
|
|
},
|
|||
|
|
set: function(f) {
|
|||
|
|
var self = this;
|
|||
|
|
if (this._ontrack) {
|
|||
|
|
this.removeEventListener('track', this._ontrack);
|
|||
|
|
this.removeEventListener('addstream', this._ontrackpoly);
|
|||
|
|
}
|
|||
|
|
this.addEventListener('track', this._ontrack = f);
|
|||
|
|
this.addEventListener('addstream', this._ontrackpoly = function(e) {
|
|||
|
|
// onaddstream does not fire when a track is added to an existing
|
|||
|
|
// stream. But stream.onaddtrack is implemented so we use that.
|
|||
|
|
e.stream.addEventListener('addtrack', function(te) {
|
|||
|
|
var event = new Event('track');
|
|||
|
|
event.track = te.track;
|
|||
|
|
event.receiver = {track: te.track};
|
|||
|
|
event.streams = [e.stream];
|
|||
|
|
self.dispatchEvent(event);
|
|||
|
|
});
|
|||
|
|
e.stream.getTracks().forEach(function(track) {
|
|||
|
|
var event = new Event('track');
|
|||
|
|
event.track = track;
|
|||
|
|
event.receiver = {track: track};
|
|||
|
|
event.streams = [e.stream];
|
|||
|
|
this.dispatchEvent(event);
|
|||
|
|
}.bind(this));
|
|||
|
|
}.bind(this));
|
|||
|
|
}
|
|||
|
|
});
|
|||
|
|
}
|
|||
|
|
},
|
|||
|
|
|
|||
|
|
shimGetSendersWithDtmf: function() {
|
|||
|
|
if (typeof window === 'object' && window.RTCPeerConnection &&
|
|||
|
|
!('getSenders' in RTCPeerConnection.prototype) &&
|
|||
|
|
'createDTMFSender' in RTCPeerConnection.prototype) {
|
|||
|
|
RTCPeerConnection.prototype.getSenders = function() {
|
|||
|
|
return this._senders;
|
|||
|
|
};
|
|||
|
|
var origAddStream = RTCPeerConnection.prototype.addStream;
|
|||
|
|
var origRemoveStream = RTCPeerConnection.prototype.removeStream;
|
|||
|
|
|
|||
|
|
RTCPeerConnection.prototype.addStream = function(stream) {
|
|||
|
|
var pc = this;
|
|||
|
|
pc._senders = pc._senders || [];
|
|||
|
|
origAddStream.apply(pc, [stream]);
|
|||
|
|
stream.getTracks().forEach(function(track) {
|
|||
|
|
pc._senders.push({
|
|||
|
|
track: track,
|
|||
|
|
get dtmf() {
|
|||
|
|
if (this._dtmf === undefined) {
|
|||
|
|
if (track.kind === 'audio') {
|
|||
|
|
this._dtmf = pc.createDTMFSender(track);
|
|||
|
|
} else {
|
|||
|
|
this._dtmf = null;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
return this._dtmf;
|
|||
|
|
}
|
|||
|
|
});
|
|||
|
|
});
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
RTCPeerConnection.prototype.removeStream = function(stream) {
|
|||
|
|
var pc = this;
|
|||
|
|
pc._senders = pc._senders || [];
|
|||
|
|
origRemoveStream.apply(pc, [stream]);
|
|||
|
|
stream.getTracks().forEach(function(track) {
|
|||
|
|
var sender = pc._senders.find(function(s) {
|
|||
|
|
return s.track === track;
|
|||
|
|
});
|
|||
|
|
if (sender) {
|
|||
|
|
pc._senders.splice(pc._senders.indexOf(sender), 1); // remove sender
|
|||
|
|
}
|
|||
|
|
});
|
|||
|
|
};
|
|||
|
|
}
|
|||
|
|
},
|
|||
|
|
|
|||
|
|
shimSourceObject: function() {
|
|||
|
|
if (typeof window === 'object') {
|
|||
|
|
if (window.HTMLMediaElement &&
|
|||
|
|
!('srcObject' in window.HTMLMediaElement.prototype)) {
|
|||
|
|
// Shim the srcObject property, once, when HTMLMediaElement is found.
|
|||
|
|
Object.defineProperty(window.HTMLMediaElement.prototype, 'srcObject', {
|
|||
|
|
get: function() {
|
|||
|
|
return this._srcObject;
|
|||
|
|
},
|
|||
|
|
set: function(stream) {
|
|||
|
|
var self = this;
|
|||
|
|
// Use _srcObject as a private property for this shim
|
|||
|
|
this._srcObject = stream;
|
|||
|
|
if (this.src) {
|
|||
|
|
URL.revokeObjectURL(this.src);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if (!stream) {
|
|||
|
|
this.src = '';
|
|||
|
|
return undefined;
|
|||
|
|
}
|
|||
|
|
this.src = URL.createObjectURL(stream);
|
|||
|
|
// We need to recreate the blob url when a track is added or
|
|||
|
|
// removed. Doing it manually since we want to avoid a recursion.
|
|||
|
|
stream.addEventListener('addtrack', function() {
|
|||
|
|
if (self.src) {
|
|||
|
|
URL.revokeObjectURL(self.src);
|
|||
|
|
}
|
|||
|
|
self.src = URL.createObjectURL(stream);
|
|||
|
|
});
|
|||
|
|
stream.addEventListener('removetrack', function() {
|
|||
|
|
if (self.src) {
|
|||
|
|
URL.revokeObjectURL(self.src);
|
|||
|
|
}
|
|||
|
|
self.src = URL.createObjectURL(stream);
|
|||
|
|
});
|
|||
|
|
}
|
|||
|
|
});
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
},
|
|||
|
|
|
|||
|
|
shimPeerConnection: function() {
|
|||
|
|
// The RTCPeerConnection object.
|
|||
|
|
if (!window.RTCPeerConnection) {
|
|||
|
|
window.RTCPeerConnection = function(pcConfig, pcConstraints) {
|
|||
|
|
// Translate iceTransportPolicy to iceTransports,
|
|||
|
|
// see https://code.google.com/p/webrtc/issues/detail?id=4869
|
|||
|
|
// this was fixed in M56 along with unprefixing RTCPeerConnection.
|
|||
|
|
logging('PeerConnection');
|
|||
|
|
if (pcConfig && pcConfig.iceTransportPolicy) {
|
|||
|
|
pcConfig.iceTransports = pcConfig.iceTransportPolicy;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
return new webkitRTCPeerConnection(pcConfig, pcConstraints);
|
|||
|
|
};
|
|||
|
|
window.RTCPeerConnection.prototype = webkitRTCPeerConnection.prototype;
|
|||
|
|
// wrap static methods. Currently just generateCertificate.
|
|||
|
|
if (webkitRTCPeerConnection.generateCertificate) {
|
|||
|
|
Object.defineProperty(window.RTCPeerConnection, 'generateCertificate', {
|
|||
|
|
get: function() {
|
|||
|
|
return webkitRTCPeerConnection.generateCertificate;
|
|||
|
|
}
|
|||
|
|
});
|
|||
|
|
}
|
|||
|
|
} else {
|
|||
|
|
// migrate from non-spec RTCIceServer.url to RTCIceServer.urls
|
|||
|
|
var OrigPeerConnection = RTCPeerConnection;
|
|||
|
|
window.RTCPeerConnection = function(pcConfig, pcConstraints) {
|
|||
|
|
if (pcConfig && pcConfig.iceServers) {
|
|||
|
|
var newIceServers = [];
|
|||
|
|
for (var i = 0; i < pcConfig.iceServers.length; i++) {
|
|||
|
|
var server = pcConfig.iceServers[i];
|
|||
|
|
if (!server.hasOwnProperty('urls') &&
|
|||
|
|
server.hasOwnProperty('url')) {
|
|||
|
|
console.warn('RTCIceServer.url is deprecated! Use urls instead.');
|
|||
|
|
server = JSON.parse(JSON.stringify(server));
|
|||
|
|
server.urls = server.url;
|
|||
|
|
newIceServers.push(server);
|
|||
|
|
} else {
|
|||
|
|
newIceServers.push(pcConfig.iceServers[i]);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
pcConfig.iceServers = newIceServers;
|
|||
|
|
}
|
|||
|
|
return new OrigPeerConnection(pcConfig, pcConstraints);
|
|||
|
|
};
|
|||
|
|
window.RTCPeerConnection.prototype = OrigPeerConnection.prototype;
|
|||
|
|
// wrap static methods. Currently just generateCertificate.
|
|||
|
|
Object.defineProperty(window.RTCPeerConnection, 'generateCertificate', {
|
|||
|
|
get: function() {
|
|||
|
|
return OrigPeerConnection.generateCertificate;
|
|||
|
|
}
|
|||
|
|
});
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
var origGetStats = RTCPeerConnection.prototype.getStats;
|
|||
|
|
RTCPeerConnection.prototype.getStats = function(selector,
|
|||
|
|
successCallback, errorCallback) {
|
|||
|
|
var self = this;
|
|||
|
|
var args = arguments;
|
|||
|
|
|
|||
|
|
// If selector is a function then we are in the old style stats so just
|
|||
|
|
// pass back the original getStats format to avoid breaking old users.
|
|||
|
|
if (arguments.length > 0 && typeof selector === 'function') {
|
|||
|
|
return origGetStats.apply(this, arguments);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// When spec-style getStats is supported, return those when called with
|
|||
|
|
// either no arguments or the selector argument is null.
|
|||
|
|
if (origGetStats.length === 0 && (arguments.length === 0 ||
|
|||
|
|
typeof arguments[0] !== 'function')) {
|
|||
|
|
return origGetStats.apply(this, []);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
var fixChromeStats_ = function(response) {
|
|||
|
|
var standardReport = {};
|
|||
|
|
var reports = response.result();
|
|||
|
|
reports.forEach(function(report) {
|
|||
|
|
var standardStats = {
|
|||
|
|
id: report.id,
|
|||
|
|
timestamp: report.timestamp,
|
|||
|
|
type: {
|
|||
|
|
localcandidate: 'local-candidate',
|
|||
|
|
remotecandidate: 'remote-candidate'
|
|||
|
|
}[report.type] || report.type
|
|||
|
|
};
|
|||
|
|
report.names().forEach(function(name) {
|
|||
|
|
standardStats[name] = report.stat(name);
|
|||
|
|
});
|
|||
|
|
standardReport[standardStats.id] = standardStats;
|
|||
|
|
});
|
|||
|
|
|
|||
|
|
return standardReport;
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
// shim getStats with maplike support
|
|||
|
|
var makeMapStats = function(stats) {
|
|||
|
|
return new Map(Object.keys(stats).map(function(key) {
|
|||
|
|
return[key, stats[key]];
|
|||
|
|
}));
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
if (arguments.length >= 2) {
|
|||
|
|
var successCallbackWrapper_ = function(response) {
|
|||
|
|
args[1](makeMapStats(fixChromeStats_(response)));
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
return origGetStats.apply(this, [successCallbackWrapper_,
|
|||
|
|
arguments[0]]);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// promise-support
|
|||
|
|
return new Promise(function(resolve, reject) {
|
|||
|
|
origGetStats.apply(self, [
|
|||
|
|
function(response) {
|
|||
|
|
resolve(makeMapStats(fixChromeStats_(response)));
|
|||
|
|
}, reject]);
|
|||
|
|
}).then(successCallback, errorCallback);
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
// add promise support -- natively available in Chrome 51
|
|||
|
|
if (browserDetails.version < 51) {
|
|||
|
|
['setLocalDescription', 'setRemoteDescription', 'addIceCandidate']
|
|||
|
|
.forEach(function(method) {
|
|||
|
|
var nativeMethod = RTCPeerConnection.prototype[method];
|
|||
|
|
RTCPeerConnection.prototype[method] = function() {
|
|||
|
|
var args = arguments;
|
|||
|
|
var self = this;
|
|||
|
|
var promise = new Promise(function(resolve, reject) {
|
|||
|
|
nativeMethod.apply(self, [args[0], resolve, reject]);
|
|||
|
|
});
|
|||
|
|
if (args.length < 2) {
|
|||
|
|
return promise;
|
|||
|
|
}
|
|||
|
|
return promise.then(function() {
|
|||
|
|
args[1].apply(null, []);
|
|||
|
|
},
|
|||
|
|
function(err) {
|
|||
|
|
if (args.length >= 3) {
|
|||
|
|
args[2].apply(null, [err]);
|
|||
|
|
}
|
|||
|
|
});
|
|||
|
|
};
|
|||
|
|
});
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// promise support for createOffer and createAnswer. Available (without
|
|||
|
|
// bugs) since M52: crbug/619289
|
|||
|
|
if (browserDetails.version < 52) {
|
|||
|
|
['createOffer', 'createAnswer'].forEach(function(method) {
|
|||
|
|
var nativeMethod = RTCPeerConnection.prototype[method];
|
|||
|
|
RTCPeerConnection.prototype[method] = function() {
|
|||
|
|
var self = this;
|
|||
|
|
if (arguments.length < 1 || (arguments.length === 1 &&
|
|||
|
|
typeof arguments[0] === 'object')) {
|
|||
|
|
var opts = arguments.length === 1 ? arguments[0] : undefined;
|
|||
|
|
return new Promise(function(resolve, reject) {
|
|||
|
|
nativeMethod.apply(self, [resolve, reject, opts]);
|
|||
|
|
});
|
|||
|
|
}
|
|||
|
|
return nativeMethod.apply(this, arguments);
|
|||
|
|
};
|
|||
|
|
});
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// shim implicit creation of RTCSessionDescription/RTCIceCandidate
|
|||
|
|
['setLocalDescription', 'setRemoteDescription', 'addIceCandidate']
|
|||
|
|
.forEach(function(method) {
|
|||
|
|
var nativeMethod = RTCPeerConnection.prototype[method];
|
|||
|
|
RTCPeerConnection.prototype[method] = function() {
|
|||
|
|
arguments[0] = new ((method === 'addIceCandidate') ?
|
|||
|
|
RTCIceCandidate : RTCSessionDescription)(arguments[0]);
|
|||
|
|
return nativeMethod.apply(this, arguments);
|
|||
|
|
};
|
|||
|
|
});
|
|||
|
|
|
|||
|
|
// support for addIceCandidate(null or undefined)
|
|||
|
|
var nativeAddIceCandidate =
|
|||
|
|
RTCPeerConnection.prototype.addIceCandidate;
|
|||
|
|
RTCPeerConnection.prototype.addIceCandidate = function() {
|
|||
|
|
if (!arguments[0]) {
|
|||
|
|
if (arguments[1]) {
|
|||
|
|
arguments[1].apply(null);
|
|||
|
|
}
|
|||
|
|
return Promise.resolve();
|
|||
|
|
}
|
|||
|
|
return nativeAddIceCandidate.apply(this, arguments);
|
|||
|
|
};
|
|||
|
|
}
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
|
|||
|
|
// Expose public methods.
|
|||
|
|
module.exports = {
|
|||
|
|
shimMediaStream: chromeShim.shimMediaStream,
|
|||
|
|
shimOnTrack: chromeShim.shimOnTrack,
|
|||
|
|
shimGetSendersWithDtmf: chromeShim.shimGetSendersWithDtmf,
|
|||
|
|
shimSourceObject: chromeShim.shimSourceObject,
|
|||
|
|
shimPeerConnection: chromeShim.shimPeerConnection,
|
|||
|
|
shimGetUserMedia: require('./getusermedia')
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
},{"../utils.js":10,"./getusermedia":4}],4:[function(require,module,exports){
|
|||
|
|
/*
|
|||
|
|
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
|
|||
|
|
*
|
|||
|
|
* Use of this source code is governed by a BSD-style license
|
|||
|
|
* that can be found in the LICENSE file in the root of the source
|
|||
|
|
* tree.
|
|||
|
|
*/
|
|||
|
|
/* eslint-env node */
|
|||
|
|
'use strict';
|
|||
|
|
var logging = require('../utils.js').log;
|
|||
|
|
var browserDetails = require('../utils.js').browserDetails;
|
|||
|
|
|
|||
|
|
// Expose public methods.
|
|||
|
|
module.exports = function() {
|
|||
|
|
var constraintsToChrome_ = function(c) {
|
|||
|
|
if (typeof c !== 'object' || c.mandatory || c.optional) {
|
|||
|
|
return c;
|
|||
|
|
}
|
|||
|
|
var cc = {};
|
|||
|
|
Object.keys(c).forEach(function(key) {
|
|||
|
|
if (key === 'require' || key === 'advanced' || key === 'mediaSource') {
|
|||
|
|
return;
|
|||
|
|
}
|
|||
|
|
var r = (typeof c[key] === 'object') ? c[key] : {ideal: c[key]};
|
|||
|
|
if (r.exact !== undefined && typeof r.exact === 'number') {
|
|||
|
|
r.min = r.max = r.exact;
|
|||
|
|
}
|
|||
|
|
var oldname_ = function(prefix, name) {
|
|||
|
|
if (prefix) {
|
|||
|
|
return prefix + name.charAt(0).toUpperCase() + name.slice(1);
|
|||
|
|
}
|
|||
|
|
return (name === 'deviceId') ? 'sourceId' : name;
|
|||
|
|
};
|
|||
|
|
if (r.ideal !== undefined) {
|
|||
|
|
cc.optional = cc.optional || [];
|
|||
|
|
var oc = {};
|
|||
|
|
if (typeof r.ideal === 'number') {
|
|||
|
|
oc[oldname_('min', key)] = r.ideal;
|
|||
|
|
cc.optional.push(oc);
|
|||
|
|
oc = {};
|
|||
|
|
oc[oldname_('max', key)] = r.ideal;
|
|||
|
|
cc.optional.push(oc);
|
|||
|
|
} else {
|
|||
|
|
oc[oldname_('', key)] = r.ideal;
|
|||
|
|
cc.optional.push(oc);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
if (r.exact !== undefined && typeof r.exact !== 'number') {
|
|||
|
|
cc.mandatory = cc.mandatory || {};
|
|||
|
|
cc.mandatory[oldname_('', key)] = r.exact;
|
|||
|
|
} else {
|
|||
|
|
['min', 'max'].forEach(function(mix) {
|
|||
|
|
if (r[mix] !== undefined) {
|
|||
|
|
cc.mandatory = cc.mandatory || {};
|
|||
|
|
cc.mandatory[oldname_(mix, key)] = r[mix];
|
|||
|
|
}
|
|||
|
|
});
|
|||
|
|
}
|
|||
|
|
});
|
|||
|
|
if (c.advanced) {
|
|||
|
|
cc.optional = (cc.optional || []).concat(c.advanced);
|
|||
|
|
}
|
|||
|
|
return cc;
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
var shimConstraints_ = function(constraints, func) {
|
|||
|
|
constraints = JSON.parse(JSON.stringify(constraints));
|
|||
|
|
if (constraints && constraints.audio) {
|
|||
|
|
constraints.audio = constraintsToChrome_(constraints.audio);
|
|||
|
|
}
|
|||
|
|
if (constraints && typeof constraints.video === 'object') {
|
|||
|
|
// Shim facingMode for mobile & surface pro.
|
|||
|
|
var face = constraints.video.facingMode;
|
|||
|
|
face = face && ((typeof face === 'object') ? face : {ideal: face});
|
|||
|
|
var getSupportedFacingModeLies = browserDetails.version < 61;
|
|||
|
|
|
|||
|
|
if ((face && (face.exact === 'user' || face.exact === 'environment' ||
|
|||
|
|
face.ideal === 'user' || face.ideal === 'environment')) &&
|
|||
|
|
!(navigator.mediaDevices.getSupportedConstraints &&
|
|||
|
|
navigator.mediaDevices.getSupportedConstraints().facingMode &&
|
|||
|
|
!getSupportedFacingModeLies)) {
|
|||
|
|
delete constraints.video.facingMode;
|
|||
|
|
var match;
|
|||
|
|
if (face.exact === 'environment' || face.ideal === 'environment') {
|
|||
|
|
match = 'back';
|
|||
|
|
} else if (face.exact === 'user' || face.ideal === 'user') {
|
|||
|
|
match = 'front';
|
|||
|
|
}
|
|||
|
|
if (match) {
|
|||
|
|
// Look for match in label.
|
|||
|
|
return navigator.mediaDevices.enumerateDevices()
|
|||
|
|
.then(function(devices) {
|
|||
|
|
devices = devices.filter(function(d) {
|
|||
|
|
return d.kind === 'videoinput';
|
|||
|
|
});
|
|||
|
|
var dev = devices.find(function(d) {
|
|||
|
|
return d.label.toLowerCase().indexOf(match) !== -1;
|
|||
|
|
});
|
|||
|
|
if (dev) {
|
|||
|
|
constraints.video.deviceId = face.exact ? {exact: dev.deviceId} :
|
|||
|
|
{ideal: dev.deviceId};
|
|||
|
|
}
|
|||
|
|
constraints.video = constraintsToChrome_(constraints.video);
|
|||
|
|
logging('chrome: ' + JSON.stringify(constraints));
|
|||
|
|
return func(constraints);
|
|||
|
|
});
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
constraints.video = constraintsToChrome_(constraints.video);
|
|||
|
|
}
|
|||
|
|
logging('chrome: ' + JSON.stringify(constraints));
|
|||
|
|
return func(constraints);
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
var shimError_ = function(e) {
|
|||
|
|
return {
|
|||
|
|
name: {
|
|||
|
|
PermissionDeniedError: 'NotAllowedError',
|
|||
|
|
ConstraintNotSatisfiedError: 'OverconstrainedError'
|
|||
|
|
}[e.name] || e.name,
|
|||
|
|
message: e.message,
|
|||
|
|
constraint: e.constraintName,
|
|||
|
|
toString: function() {
|
|||
|
|
return this.name + (this.message && ': ') + this.message;
|
|||
|
|
}
|
|||
|
|
};
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
var getUserMedia_ = function(constraints, onSuccess, onError) {
|
|||
|
|
shimConstraints_(constraints, function(c) {
|
|||
|
|
navigator.webkitGetUserMedia(c, onSuccess, function(e) {
|
|||
|
|
onError(shimError_(e));
|
|||
|
|
});
|
|||
|
|
});
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
navigator.getUserMedia = getUserMedia_;
|
|||
|
|
|
|||
|
|
// Returns the result of getUserMedia as a Promise.
|
|||
|
|
var getUserMediaPromise_ = function(constraints) {
|
|||
|
|
return new Promise(function(resolve, reject) {
|
|||
|
|
navigator.getUserMedia(constraints, resolve, reject);
|
|||
|
|
});
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
if (!navigator.mediaDevices) {
|
|||
|
|
navigator.mediaDevices = {
|
|||
|
|
getUserMedia: getUserMediaPromise_,
|
|||
|
|
enumerateDevices: function() {
|
|||
|
|
return new Promise(function(resolve) {
|
|||
|
|
var kinds = {audio: 'audioinput', video: 'videoinput'};
|
|||
|
|
return MediaStreamTrack.getSources(function(devices) {
|
|||
|
|
resolve(devices.map(function(device) {
|
|||
|
|
return {label: device.label,
|
|||
|
|
kind: kinds[device.kind],
|
|||
|
|
deviceId: device.id,
|
|||
|
|
groupId: ''};
|
|||
|
|
}));
|
|||
|
|
});
|
|||
|
|
});
|
|||
|
|
},
|
|||
|
|
getSupportedConstraints: function() {
|
|||
|
|
return {
|
|||
|
|
deviceId: true, echoCancellation: true, facingMode: true,
|
|||
|
|
frameRate: true, height: true, width: true
|
|||
|
|
};
|
|||
|
|
}
|
|||
|
|
};
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// A shim for getUserMedia method on the mediaDevices object.
|
|||
|
|
// TODO(KaptenJansson) remove once implemented in Chrome stable.
|
|||
|
|
if (!navigator.mediaDevices.getUserMedia) {
|
|||
|
|
navigator.mediaDevices.getUserMedia = function(constraints) {
|
|||
|
|
return getUserMediaPromise_(constraints);
|
|||
|
|
};
|
|||
|
|
} else {
|
|||
|
|
// Even though Chrome 45 has navigator.mediaDevices and a getUserMedia
|
|||
|
|
// function which returns a Promise, it does not accept spec-style
|
|||
|
|
// constraints.
|
|||
|
|
var origGetUserMedia = navigator.mediaDevices.getUserMedia.
|
|||
|
|
bind(navigator.mediaDevices);
|
|||
|
|
navigator.mediaDevices.getUserMedia = function(cs) {
|
|||
|
|
return shimConstraints_(cs, function(c) {
|
|||
|
|
return origGetUserMedia(c).then(function(stream) {
|
|||
|
|
if (c.audio && !stream.getAudioTracks().length ||
|
|||
|
|
c.video && !stream.getVideoTracks().length) {
|
|||
|
|
stream.getTracks().forEach(function(track) {
|
|||
|
|
track.stop();
|
|||
|
|
});
|
|||
|
|
throw new DOMException('', 'NotFoundError');
|
|||
|
|
}
|
|||
|
|
return stream;
|
|||
|
|
}, function(e) {
|
|||
|
|
return Promise.reject(shimError_(e));
|
|||
|
|
});
|
|||
|
|
});
|
|||
|
|
};
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// Dummy devicechange event methods.
|
|||
|
|
// TODO(KaptenJansson) remove once implemented in Chrome stable.
|
|||
|
|
if (typeof navigator.mediaDevices.addEventListener === 'undefined') {
|
|||
|
|
navigator.mediaDevices.addEventListener = function() {
|
|||
|
|
logging('Dummy mediaDevices.addEventListener called.');
|
|||
|
|
};
|
|||
|
|
}
|
|||
|
|
if (typeof navigator.mediaDevices.removeEventListener === 'undefined') {
|
|||
|
|
navigator.mediaDevices.removeEventListener = function() {
|
|||
|
|
logging('Dummy mediaDevices.removeEventListener called.');
|
|||
|
|
};
|
|||
|
|
}
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
},{"../utils.js":10}],5:[function(require,module,exports){
|
|||
|
|
/*
|
|||
|
|
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
|
|||
|
|
*
|
|||
|
|
* Use of this source code is governed by a BSD-style license
|
|||
|
|
* that can be found in the LICENSE file in the root of the source
|
|||
|
|
* tree.
|
|||
|
|
*/
|
|||
|
|
/* eslint-env node */
|
|||
|
|
'use strict';
|
|||
|
|
|
|||
|
|
var SDPUtils = require('sdp');
|
|||
|
|
var browserDetails = require('../utils').browserDetails;
|
|||
|
|
|
|||
|
|
// sort tracks such that they follow an a-v-a-v...
|
|||
|
|
// pattern.
|
|||
|
|
function sortTracks(tracks) {
|
|||
|
|
var audioTracks = tracks.filter(function(track) {
|
|||
|
|
return track.kind === 'audio';
|
|||
|
|
});
|
|||
|
|
var videoTracks = tracks.filter(function(track) {
|
|||
|
|
return track.kind === 'video';
|
|||
|
|
});
|
|||
|
|
tracks = [];
|
|||
|
|
while (audioTracks.length || videoTracks.length) {
|
|||
|
|
if (audioTracks.length) {
|
|||
|
|
tracks.push(audioTracks.shift());
|
|||
|
|
}
|
|||
|
|
if (videoTracks.length) {
|
|||
|
|
tracks.push(videoTracks.shift());
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
return tracks;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// Edge does not like
|
|||
|
|
// 1) stun:
|
|||
|
|
// 2) turn: that does not have all of turn:host:port?transport=udp
|
|||
|
|
// 3) turn: with ipv6 addresses
|
|||
|
|
// 4) turn: occurring muliple times
|
|||
|
|
function filterIceServers(iceServers) {
|
|||
|
|
var hasTurn = false;
|
|||
|
|
iceServers = JSON.parse(JSON.stringify(iceServers));
|
|||
|
|
return iceServers.filter(function(server) {
|
|||
|
|
if (server && (server.urls || server.url)) {
|
|||
|
|
var urls = server.urls || server.url;
|
|||
|
|
if (server.url && !server.urls) {
|
|||
|
|
console.warn('RTCIceServer.url is deprecated! Use urls instead.');
|
|||
|
|
}
|
|||
|
|
var isString = typeof urls === 'string';
|
|||
|
|
if (isString) {
|
|||
|
|
urls = [urls];
|
|||
|
|
}
|
|||
|
|
urls = urls.filter(function(url) {
|
|||
|
|
var validTurn = url.indexOf('turn:') === 0 &&
|
|||
|
|
url.indexOf('transport=udp') !== -1 &&
|
|||
|
|
url.indexOf('turn:[') === -1 &&
|
|||
|
|
!hasTurn;
|
|||
|
|
|
|||
|
|
if (validTurn) {
|
|||
|
|
hasTurn = true;
|
|||
|
|
return true;
|
|||
|
|
}
|
|||
|
|
return url.indexOf('stun:') === 0 &&
|
|||
|
|
browserDetails.version >= 14393;
|
|||
|
|
});
|
|||
|
|
|
|||
|
|
delete server.url;
|
|||
|
|
server.urls = isString ? urls[0] : urls;
|
|||
|
|
return !!urls.length;
|
|||
|
|
}
|
|||
|
|
return false;
|
|||
|
|
});
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
var edgeShim = {
|
|||
|
|
shimPeerConnection: function() {
|
|||
|
|
if (window.RTCIceGatherer) {
|
|||
|
|
// ORTC defines an RTCIceCandidate object but no constructor.
|
|||
|
|
// Not implemented in Edge.
|
|||
|
|
if (!window.RTCIceCandidate) {
|
|||
|
|
window.RTCIceCandidate = function(args) {
|
|||
|
|
return args;
|
|||
|
|
};
|
|||
|
|
}
|
|||
|
|
// ORTC does not have a session description object but
|
|||
|
|
// other browsers (i.e. Chrome) that will support both PC and ORTC
|
|||
|
|
// in the future might have this defined already.
|
|||
|
|
if (!window.RTCSessionDescription) {
|
|||
|
|
window.RTCSessionDescription = function(args) {
|
|||
|
|
return args;
|
|||
|
|
};
|
|||
|
|
}
|
|||
|
|
// this adds an additional event listener to MediaStrackTrack that signals
|
|||
|
|
// when a tracks enabled property was changed. Workaround for a bug in
|
|||
|
|
// addStream, see below. No longer required in 15025+
|
|||
|
|
if (browserDetails.version < 15025) {
|
|||
|
|
var origMSTEnabled = Object.getOwnPropertyDescriptor(
|
|||
|
|
MediaStreamTrack.prototype, 'enabled');
|
|||
|
|
Object.defineProperty(MediaStreamTrack.prototype, 'enabled', {
|
|||
|
|
set: function(value) {
|
|||
|
|
origMSTEnabled.set.call(this, value);
|
|||
|
|
var ev = new Event('enabled');
|
|||
|
|
ev.enabled = value;
|
|||
|
|
this.dispatchEvent(ev);
|
|||
|
|
}
|
|||
|
|
});
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
window.RTCPeerConnection = function(config) {
|
|||
|
|
var self = this;
|
|||
|
|
|
|||
|
|
var _eventTarget = document.createDocumentFragment();
|
|||
|
|
['addEventListener', 'removeEventListener', 'dispatchEvent']
|
|||
|
|
.forEach(function(method) {
|
|||
|
|
self[method] = _eventTarget[method].bind(_eventTarget);
|
|||
|
|
});
|
|||
|
|
|
|||
|
|
this.onicecandidate = null;
|
|||
|
|
this.onaddstream = null;
|
|||
|
|
this.ontrack = null;
|
|||
|
|
this.onremovestream = null;
|
|||
|
|
this.onsignalingstatechange = null;
|
|||
|
|
this.oniceconnectionstatechange = null;
|
|||
|
|
this.onicegatheringstatechange = null;
|
|||
|
|
this.onnegotiationneeded = null;
|
|||
|
|
this.ondatachannel = null;
|
|||
|
|
this.canTrickleIceCandidates = null;
|
|||
|
|
|
|||
|
|
this.localStreams = [];
|
|||
|
|
this.remoteStreams = [];
|
|||
|
|
this.getLocalStreams = function() {
|
|||
|
|
return self.localStreams;
|
|||
|
|
};
|
|||
|
|
this.getRemoteStreams = function() {
|
|||
|
|
return self.remoteStreams;
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
this.localDescription = new RTCSessionDescription({
|
|||
|
|
type: '',
|
|||
|
|
sdp: ''
|
|||
|
|
});
|
|||
|
|
this.remoteDescription = new RTCSessionDescription({
|
|||
|
|
type: '',
|
|||
|
|
sdp: ''
|
|||
|
|
});
|
|||
|
|
this.signalingState = 'stable';
|
|||
|
|
this.iceConnectionState = 'new';
|
|||
|
|
this.iceGatheringState = 'new';
|
|||
|
|
|
|||
|
|
this.iceOptions = {
|
|||
|
|
gatherPolicy: 'all',
|
|||
|
|
iceServers: []
|
|||
|
|
};
|
|||
|
|
if (config && config.iceTransportPolicy) {
|
|||
|
|
switch (config.iceTransportPolicy) {
|
|||
|
|
case 'all':
|
|||
|
|
case 'relay':
|
|||
|
|
this.iceOptions.gatherPolicy = config.iceTransportPolicy;
|
|||
|
|
break;
|
|||
|
|
default:
|
|||
|
|
// don't set iceTransportPolicy.
|
|||
|
|
break;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
this.usingBundle = config && config.bundlePolicy === 'max-bundle';
|
|||
|
|
|
|||
|
|
if (config && config.iceServers) {
|
|||
|
|
this.iceOptions.iceServers = filterIceServers(config.iceServers);
|
|||
|
|
}
|
|||
|
|
this._config = config || {};
|
|||
|
|
|
|||
|
|
// per-track iceGathers, iceTransports, dtlsTransports, rtpSenders, ...
|
|||
|
|
// everything that is needed to describe a SDP m-line.
|
|||
|
|
this.transceivers = [];
|
|||
|
|
|
|||
|
|
// since the iceGatherer is currently created in createOffer but we
|
|||
|
|
// must not emit candidates until after setLocalDescription we buffer
|
|||
|
|
// them in this array.
|
|||
|
|
this._localIceCandidatesBuffer = [];
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
window.RTCPeerConnection.prototype._emitGatheringStateChange = function() {
|
|||
|
|
var event = new Event('icegatheringstatechange');
|
|||
|
|
this.dispatchEvent(event);
|
|||
|
|
if (this.onicegatheringstatechange !== null) {
|
|||
|
|
this.onicegatheringstatechange(event);
|
|||
|
|
}
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
window.RTCPeerConnection.prototype._emitBufferedCandidates = function() {
|
|||
|
|
var self = this;
|
|||
|
|
var sections = SDPUtils.splitSections(self.localDescription.sdp);
|
|||
|
|
// FIXME: need to apply ice candidates in a way which is async but
|
|||
|
|
// in-order
|
|||
|
|
this._localIceCandidatesBuffer.forEach(function(event) {
|
|||
|
|
var end = !event.candidate || Object.keys(event.candidate).length === 0;
|
|||
|
|
if (end) {
|
|||
|
|
for (var j = 1; j < sections.length; j++) {
|
|||
|
|
if (sections[j].indexOf('\r\na=end-of-candidates\r\n') === -1) {
|
|||
|
|
sections[j] += 'a=end-of-candidates\r\n';
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
} else {
|
|||
|
|
sections[event.candidate.sdpMLineIndex + 1] +=
|
|||
|
|
'a=' + event.candidate.candidate + '\r\n';
|
|||
|
|
}
|
|||
|
|
self.localDescription.sdp = sections.join('');
|
|||
|
|
self.dispatchEvent(event);
|
|||
|
|
if (self.onicecandidate !== null) {
|
|||
|
|
self.onicecandidate(event);
|
|||
|
|
}
|
|||
|
|
if (!event.candidate && self.iceGatheringState !== 'complete') {
|
|||
|
|
var complete = self.transceivers.every(function(transceiver) {
|
|||
|
|
return transceiver.iceGatherer &&
|
|||
|
|
transceiver.iceGatherer.state === 'completed';
|
|||
|
|
});
|
|||
|
|
if (complete && self.iceGatheringStateChange !== 'complete') {
|
|||
|
|
self.iceGatheringState = 'complete';
|
|||
|
|
self._emitGatheringStateChange();
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
});
|
|||
|
|
this._localIceCandidatesBuffer = [];
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
window.RTCPeerConnection.prototype.getConfiguration = function() {
|
|||
|
|
return this._config;
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
window.RTCPeerConnection.prototype.addStream = function(stream) {
|
|||
|
|
if (browserDetails.version >= 15025) {
|
|||
|
|
this.localStreams.push(stream);
|
|||
|
|
} else {
|
|||
|
|
// Clone is necessary for local demos mostly, attaching directly
|
|||
|
|
// to two different senders does not work (build 10547).
|
|||
|
|
// Fixed in 15025 (or earlier)
|
|||
|
|
var clonedStream = stream.clone();
|
|||
|
|
stream.getTracks().forEach(function(track, idx) {
|
|||
|
|
var clonedTrack = clonedStream.getTracks()[idx];
|
|||
|
|
track.addEventListener('enabled', function(event) {
|
|||
|
|
clonedTrack.enabled = event.enabled;
|
|||
|
|
});
|
|||
|
|
});
|
|||
|
|
this.localStreams.push(clonedStream);
|
|||
|
|
}
|
|||
|
|
this._maybeFireNegotiationNeeded();
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
window.RTCPeerConnection.prototype.removeStream = function(stream) {
|
|||
|
|
var idx = this.localStreams.indexOf(stream);
|
|||
|
|
if (idx > -1) {
|
|||
|
|
this.localStreams.splice(idx, 1);
|
|||
|
|
this._maybeFireNegotiationNeeded();
|
|||
|
|
}
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
window.RTCPeerConnection.prototype.getSenders = function() {
|
|||
|
|
return this.transceivers.filter(function(transceiver) {
|
|||
|
|
return !!transceiver.rtpSender;
|
|||
|
|
})
|
|||
|
|
.map(function(transceiver) {
|
|||
|
|
return transceiver.rtpSender;
|
|||
|
|
});
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
window.RTCPeerConnection.prototype.getReceivers = function() {
|
|||
|
|
return this.transceivers.filter(function(transceiver) {
|
|||
|
|
return !!transceiver.rtpReceiver;
|
|||
|
|
})
|
|||
|
|
.map(function(transceiver) {
|
|||
|
|
return transceiver.rtpReceiver;
|
|||
|
|
});
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
// Determines the intersection of local and remote capabilities.
|
|||
|
|
window.RTCPeerConnection.prototype._getCommonCapabilities =
|
|||
|
|
function(localCapabilities, remoteCapabilities) {
|
|||
|
|
var commonCapabilities = {
|
|||
|
|
codecs: [],
|
|||
|
|
headerExtensions: [],
|
|||
|
|
fecMechanisms: []
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
var findCodecByPayloadType = function(pt, codecs) {
|
|||
|
|
pt = parseInt(pt, 10);
|
|||
|
|
for (var i = 0; i < codecs.length; i++) {
|
|||
|
|
if (codecs[i].payloadType === pt ||
|
|||
|
|
codecs[i].preferredPayloadType === pt) {
|
|||
|
|
return codecs[i];
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
var rtxCapabilityMatches = function(lRtx, rRtx, lCodecs, rCodecs) {
|
|||
|
|
var lCodec = findCodecByPayloadType(lRtx.parameters.apt, lCodecs);
|
|||
|
|
var rCodec = findCodecByPayloadType(rRtx.parameters.apt, rCodecs);
|
|||
|
|
return lCodec && rCodec &&
|
|||
|
|
lCodec.name.toLowerCase() === rCodec.name.toLowerCase();
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
localCapabilities.codecs.forEach(function(lCodec) {
|
|||
|
|
for (var i = 0; i < remoteCapabilities.codecs.length; i++) {
|
|||
|
|
var rCodec = remoteCapabilities.codecs[i];
|
|||
|
|
if (lCodec.name.toLowerCase() === rCodec.name.toLowerCase() &&
|
|||
|
|
lCodec.clockRate === rCodec.clockRate) {
|
|||
|
|
if (lCodec.name.toLowerCase() === 'rtx' &&
|
|||
|
|
lCodec.parameters && rCodec.parameters.apt) {
|
|||
|
|
// for RTX we need to find the local rtx that has a apt
|
|||
|
|
// which points to the same local codec as the remote one.
|
|||
|
|
if (!rtxCapabilityMatches(lCodec, rCodec,
|
|||
|
|
localCapabilities.codecs, remoteCapabilities.codecs)) {
|
|||
|
|
continue;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
rCodec = JSON.parse(JSON.stringify(rCodec)); // deepcopy
|
|||
|
|
// number of channels is the highest common number of channels
|
|||
|
|
rCodec.numChannels = Math.min(lCodec.numChannels,
|
|||
|
|
rCodec.numChannels);
|
|||
|
|
// push rCodec so we reply with offerer payload type
|
|||
|
|
commonCapabilities.codecs.push(rCodec);
|
|||
|
|
|
|||
|
|
// determine common feedback mechanisms
|
|||
|
|
rCodec.rtcpFeedback = rCodec.rtcpFeedback.filter(function(fb) {
|
|||
|
|
for (var j = 0; j < lCodec.rtcpFeedback.length; j++) {
|
|||
|
|
if (lCodec.rtcpFeedback[j].type === fb.type &&
|
|||
|
|
lCodec.rtcpFeedback[j].parameter === fb.parameter) {
|
|||
|
|
return true;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
return false;
|
|||
|
|
});
|
|||
|
|
// FIXME: also need to determine .parameters
|
|||
|
|
// see https://github.com/openpeer/ortc/issues/569
|
|||
|
|
break;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
});
|
|||
|
|
|
|||
|
|
localCapabilities.headerExtensions
|
|||
|
|
.forEach(function(lHeaderExtension) {
|
|||
|
|
for (var i = 0; i < remoteCapabilities.headerExtensions.length;
|
|||
|
|
i++) {
|
|||
|
|
var rHeaderExtension = remoteCapabilities.headerExtensions[i];
|
|||
|
|
if (lHeaderExtension.uri === rHeaderExtension.uri) {
|
|||
|
|
commonCapabilities.headerExtensions.push(rHeaderExtension);
|
|||
|
|
break;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
});
|
|||
|
|
|
|||
|
|
// FIXME: fecMechanisms
|
|||
|
|
return commonCapabilities;
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
// Create ICE gatherer, ICE transport and DTLS transport.
|
|||
|
|
window.RTCPeerConnection.prototype._createIceAndDtlsTransports =
|
|||
|
|
function(mid, sdpMLineIndex) {
|
|||
|
|
var self = this;
|
|||
|
|
var iceGatherer = new RTCIceGatherer(self.iceOptions);
|
|||
|
|
var iceTransport = new RTCIceTransport(iceGatherer);
|
|||
|
|
iceGatherer.onlocalcandidate = function(evt) {
|
|||
|
|
var event = new Event('icecandidate');
|
|||
|
|
event.candidate = {sdpMid: mid, sdpMLineIndex: sdpMLineIndex};
|
|||
|
|
|
|||
|
|
var cand = evt.candidate;
|
|||
|
|
var end = !cand || Object.keys(cand).length === 0;
|
|||
|
|
// Edge emits an empty object for RTCIceCandidateComplete‥
|
|||
|
|
if (end) {
|
|||
|
|
// polyfill since RTCIceGatherer.state is not implemented in
|
|||
|
|
// Edge 10547 yet.
|
|||
|
|
if (iceGatherer.state === undefined) {
|
|||
|
|
iceGatherer.state = 'completed';
|
|||
|
|
}
|
|||
|
|
} else {
|
|||
|
|
// RTCIceCandidate doesn't have a component, needs to be added
|
|||
|
|
cand.component = iceTransport.component === 'RTCP' ? 2 : 1;
|
|||
|
|
event.candidate.candidate = SDPUtils.writeCandidate(cand);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// update local description.
|
|||
|
|
var sections = SDPUtils.splitSections(self.localDescription.sdp);
|
|||
|
|
if (!end) {
|
|||
|
|
sections[event.candidate.sdpMLineIndex + 1] +=
|
|||
|
|
'a=' + event.candidate.candidate + '\r\n';
|
|||
|
|
} else {
|
|||
|
|
sections[event.candidate.sdpMLineIndex + 1] +=
|
|||
|
|
'a=end-of-candidates\r\n';
|
|||
|
|
}
|
|||
|
|
self.localDescription.sdp = sections.join('');
|
|||
|
|
var transceivers = self._pendingOffer ? self._pendingOffer :
|
|||
|
|
self.transceivers;
|
|||
|
|
var complete = transceivers.every(function(transceiver) {
|
|||
|
|
return transceiver.iceGatherer &&
|
|||
|
|
transceiver.iceGatherer.state === 'completed';
|
|||
|
|
});
|
|||
|
|
|
|||
|
|
// Emit candidate if localDescription is set.
|
|||
|
|
// Also emits null candidate when all gatherers are complete.
|
|||
|
|
switch (self.iceGatheringState) {
|
|||
|
|
case 'new':
|
|||
|
|
if (!end) {
|
|||
|
|
self._localIceCandidatesBuffer.push(event);
|
|||
|
|
}
|
|||
|
|
if (end && complete) {
|
|||
|
|
self._localIceCandidatesBuffer.push(
|
|||
|
|
new Event('icecandidate'));
|
|||
|
|
}
|
|||
|
|
break;
|
|||
|
|
case 'gathering':
|
|||
|
|
self._emitBufferedCandidates();
|
|||
|
|
if (!end) {
|
|||
|
|
self.dispatchEvent(event);
|
|||
|
|
if (self.onicecandidate !== null) {
|
|||
|
|
self.onicecandidate(event);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
if (complete) {
|
|||
|
|
self.dispatchEvent(new Event('icecandidate'));
|
|||
|
|
if (self.onicecandidate !== null) {
|
|||
|
|
self.onicecandidate(new Event('icecandidate'));
|
|||
|
|
}
|
|||
|
|
self.iceGatheringState = 'complete';
|
|||
|
|
self._emitGatheringStateChange();
|
|||
|
|
}
|
|||
|
|
break;
|
|||
|
|
case 'complete':
|
|||
|
|
// should not happen... currently!
|
|||
|
|
break;
|
|||
|
|
default: // no-op.
|
|||
|
|
break;
|
|||
|
|
}
|
|||
|
|
};
|
|||
|
|
iceTransport.onicestatechange = function() {
|
|||
|
|
self._updateConnectionState();
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
var dtlsTransport = new RTCDtlsTransport(iceTransport);
|
|||
|
|
dtlsTransport.ondtlsstatechange = function() {
|
|||
|
|
self._updateConnectionState();
|
|||
|
|
};
|
|||
|
|
dtlsTransport.onerror = function() {
|
|||
|
|
// onerror does not set state to failed by itself.
|
|||
|
|
dtlsTransport.state = 'failed';
|
|||
|
|
self._updateConnectionState();
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
return {
|
|||
|
|
iceGatherer: iceGatherer,
|
|||
|
|
iceTransport: iceTransport,
|
|||
|
|
dtlsTransport: dtlsTransport
|
|||
|
|
};
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
// Destroy ICE gatherer, ICE transport and DTLS transport.
|
|||
|
|
// Without triggering the callbacks.
|
|||
|
|
window.RTCPeerConnection.prototype._disposeIceAndDtlsTransports =
|
|||
|
|
function(sdpMLineIndex) {
|
|||
|
|
var iceGatherer = this.transceivers[sdpMLineIndex].iceGatherer;
|
|||
|
|
if (iceGatherer) {
|
|||
|
|
delete iceGatherer.onlocalcandidate;
|
|||
|
|
delete this.transceivers[sdpMLineIndex].iceGatherer;
|
|||
|
|
}
|
|||
|
|
var iceTransport = this.transceivers[sdpMLineIndex].iceTransport;
|
|||
|
|
if (iceTransport) {
|
|||
|
|
delete iceTransport.onicestatechange;
|
|||
|
|
delete this.transceivers[sdpMLineIndex].iceTransport;
|
|||
|
|
}
|
|||
|
|
var dtlsTransport = this.transceivers[sdpMLineIndex].dtlsTransport;
|
|||
|
|
if (dtlsTransport) {
|
|||
|
|
delete dtlsTransport.ondtlssttatechange;
|
|||
|
|
delete dtlsTransport.onerror;
|
|||
|
|
delete this.transceivers[sdpMLineIndex].dtlsTransport;
|
|||
|
|
}
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
|
|||
|
|
// Start the RTP Sender and Receiver for a transceiver.
|
|||
|
|
window.RTCPeerConnection.prototype._transceive = function(transceiver,
|
|||
|
|
send, recv) {
|
|||
|
|
var params = this._getCommonCapabilities(transceiver.localCapabilities,
|
|||
|
|
transceiver.remoteCapabilities);
|
|||
|
|
if (send && transceiver.rtpSender) {
|
|||
|
|
params.encodings = transceiver.sendEncodingParameters;
|
|||
|
|
params.rtcp = {
|
|||
|
|
cname: SDPUtils.localCName,
|
|||
|
|
compound: transceiver.rtcpParameters.compound
|
|||
|
|
};
|
|||
|
|
if (transceiver.recvEncodingParameters.length) {
|
|||
|
|
params.rtcp.ssrc = transceiver.recvEncodingParameters[0].ssrc;
|
|||
|
|
}
|
|||
|
|
transceiver.rtpSender.send(params);
|
|||
|
|
}
|
|||
|
|
if (recv && transceiver.rtpReceiver) {
|
|||
|
|
// remove RTX field in Edge 14942
|
|||
|
|
if (transceiver.kind === 'video'
|
|||
|
|
&& transceiver.recvEncodingParameters
|
|||
|
|
&& browserDetails.version < 15019) {
|
|||
|
|
transceiver.recvEncodingParameters.forEach(function(p) {
|
|||
|
|
delete p.rtx;
|
|||
|
|
});
|
|||
|
|
}
|
|||
|
|
params.encodings = transceiver.recvEncodingParameters;
|
|||
|
|
params.rtcp = {
|
|||
|
|
cname: transceiver.rtcpParameters.cname,
|
|||
|
|
compound: transceiver.rtcpParameters.compound
|
|||
|
|
};
|
|||
|
|
if (transceiver.sendEncodingParameters.length) {
|
|||
|
|
params.rtcp.ssrc = transceiver.sendEncodingParameters[0].ssrc;
|
|||
|
|
}
|
|||
|
|
transceiver.rtpReceiver.receive(params);
|
|||
|
|
}
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
window.RTCPeerConnection.prototype.setLocalDescription =
|
|||
|
|
function(description) {
|
|||
|
|
var self = this;
|
|||
|
|
var sections;
|
|||
|
|
var sessionpart;
|
|||
|
|
if (description.type === 'offer') {
|
|||
|
|
// FIXME: What was the purpose of this empty if statement?
|
|||
|
|
// if (!this._pendingOffer) {
|
|||
|
|
// } else {
|
|||
|
|
if (this._pendingOffer) {
|
|||
|
|
// VERY limited support for SDP munging. Limited to:
|
|||
|
|
// * changing the order of codecs
|
|||
|
|
sections = SDPUtils.splitSections(description.sdp);
|
|||
|
|
sessionpart = sections.shift();
|
|||
|
|
sections.forEach(function(mediaSection, sdpMLineIndex) {
|
|||
|
|
var caps = SDPUtils.parseRtpParameters(mediaSection);
|
|||
|
|
self._pendingOffer[sdpMLineIndex].localCapabilities = caps;
|
|||
|
|
});
|
|||
|
|
this.transceivers = this._pendingOffer;
|
|||
|
|
delete this._pendingOffer;
|
|||
|
|
}
|
|||
|
|
} else if (description.type === 'answer') {
|
|||
|
|
sections = SDPUtils.splitSections(self.remoteDescription.sdp);
|
|||
|
|
sessionpart = sections.shift();
|
|||
|
|
var isIceLite = SDPUtils.matchPrefix(sessionpart,
|
|||
|
|
'a=ice-lite').length > 0;
|
|||
|
|
sections.forEach(function(mediaSection, sdpMLineIndex) {
|
|||
|
|
var transceiver = self.transceivers[sdpMLineIndex];
|
|||
|
|
var iceGatherer = transceiver.iceGatherer;
|
|||
|
|
var iceTransport = transceiver.iceTransport;
|
|||
|
|
var dtlsTransport = transceiver.dtlsTransport;
|
|||
|
|
var localCapabilities = transceiver.localCapabilities;
|
|||
|
|
var remoteCapabilities = transceiver.remoteCapabilities;
|
|||
|
|
|
|||
|
|
var rejected = mediaSection.split('\n', 1)[0]
|
|||
|
|
.split(' ', 2)[1] === '0';
|
|||
|
|
|
|||
|
|
if (!rejected && !transceiver.isDatachannel) {
|
|||
|
|
var remoteIceParameters = SDPUtils.getIceParameters(
|
|||
|
|
mediaSection, sessionpart);
|
|||
|
|
var remoteDtlsParameters = SDPUtils.getDtlsParameters(
|
|||
|
|
mediaSection, sessionpart);
|
|||
|
|
if (isIceLite) {
|
|||
|
|
remoteDtlsParameters.role = 'server';
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if (!self.usingBundle || sdpMLineIndex === 0) {
|
|||
|
|
iceTransport.start(iceGatherer, remoteIceParameters,
|
|||
|
|
isIceLite ? 'controlling' : 'controlled');
|
|||
|
|
dtlsTransport.start(remoteDtlsParameters);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// Calculate intersection of capabilities.
|
|||
|
|
var params = self._getCommonCapabilities(localCapabilities,
|
|||
|
|
remoteCapabilities);
|
|||
|
|
|
|||
|
|
// Start the RTCRtpSender. The RTCRtpReceiver for this
|
|||
|
|
// transceiver has already been started in setRemoteDescription.
|
|||
|
|
self._transceive(transceiver,
|
|||
|
|
params.codecs.length > 0,
|
|||
|
|
false);
|
|||
|
|
}
|
|||
|
|
});
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
this.localDescription = {
|
|||
|
|
type: description.type,
|
|||
|
|
sdp: description.sdp
|
|||
|
|
};
|
|||
|
|
switch (description.type) {
|
|||
|
|
case 'offer':
|
|||
|
|
this._updateSignalingState('have-local-offer');
|
|||
|
|
break;
|
|||
|
|
case 'answer':
|
|||
|
|
this._updateSignalingState('stable');
|
|||
|
|
break;
|
|||
|
|
default:
|
|||
|
|
throw new TypeError('unsupported type "' + description.type +
|
|||
|
|
'"');
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// If a success callback was provided, emit ICE candidates after it
|
|||
|
|
// has been executed. Otherwise, emit callback after the Promise is
|
|||
|
|
// resolved.
|
|||
|
|
var hasCallback = arguments.length > 1 &&
|
|||
|
|
typeof arguments[1] === 'function';
|
|||
|
|
if (hasCallback) {
|
|||
|
|
var cb = arguments[1];
|
|||
|
|
window.setTimeout(function() {
|
|||
|
|
cb();
|
|||
|
|
if (self.iceGatheringState === 'new') {
|
|||
|
|
self.iceGatheringState = 'gathering';
|
|||
|
|
self._emitGatheringStateChange();
|
|||
|
|
}
|
|||
|
|
self._emitBufferedCandidates();
|
|||
|
|
}, 0);
|
|||
|
|
}
|
|||
|
|
var p = Promise.resolve();
|
|||
|
|
p.then(function() {
|
|||
|
|
if (!hasCallback) {
|
|||
|
|
if (self.iceGatheringState === 'new') {
|
|||
|
|
self.iceGatheringState = 'gathering';
|
|||
|
|
self._emitGatheringStateChange();
|
|||
|
|
}
|
|||
|
|
// Usually candidates will be emitted earlier.
|
|||
|
|
window.setTimeout(self._emitBufferedCandidates.bind(self), 500);
|
|||
|
|
}
|
|||
|
|
});
|
|||
|
|
return p;
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
window.RTCPeerConnection.prototype.setRemoteDescription =
|
|||
|
|
function(description) {
|
|||
|
|
var self = this;
|
|||
|
|
var streams = {};
|
|||
|
|
var receiverList = [];
|
|||
|
|
var sections = SDPUtils.splitSections(description.sdp);
|
|||
|
|
var sessionpart = sections.shift();
|
|||
|
|
var isIceLite = SDPUtils.matchPrefix(sessionpart,
|
|||
|
|
'a=ice-lite').length > 0;
|
|||
|
|
var usingBundle = SDPUtils.matchPrefix(sessionpart,
|
|||
|
|
'a=group:BUNDLE ').length > 0;
|
|||
|
|
var iceOptions = SDPUtils.matchPrefix(sessionpart,
|
|||
|
|
'a=ice-options:')[0];
|
|||
|
|
if (iceOptions) {
|
|||
|
|
this.canTrickleIceCandidates = iceOptions.substr(14).split(' ')
|
|||
|
|
.indexOf('trickle') >= 0;
|
|||
|
|
} else {
|
|||
|
|
this.canTrickleIceCandidates = false;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
sections.forEach(function(mediaSection, sdpMLineIndex) {
|
|||
|
|
var lines = SDPUtils.splitLines(mediaSection);
|
|||
|
|
var mline = lines[0].substr(2).split(' ');
|
|||
|
|
var kind = mline[0];
|
|||
|
|
var rejected = mline[1] === '0';
|
|||
|
|
var direction = SDPUtils.getDirection(mediaSection, sessionpart);
|
|||
|
|
var remoteMsid = SDPUtils.parseMsid(mediaSection);
|
|||
|
|
|
|||
|
|
var mid = SDPUtils.matchPrefix(mediaSection, 'a=mid:');
|
|||
|
|
if (mid.length) {
|
|||
|
|
mid = mid[0].substr(6);
|
|||
|
|
} else {
|
|||
|
|
mid = SDPUtils.generateIdentifier();
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// Reject datachannels which are not implemented yet.
|
|||
|
|
if (kind === 'application' && mline[2] === 'DTLS/SCTP') {
|
|||
|
|
self.transceivers[sdpMLineIndex] = {
|
|||
|
|
mid: mid,
|
|||
|
|
isDatachannel: true
|
|||
|
|
};
|
|||
|
|
return;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
var transceiver;
|
|||
|
|
var iceGatherer;
|
|||
|
|
var iceTransport;
|
|||
|
|
var dtlsTransport;
|
|||
|
|
var rtpSender;
|
|||
|
|
var rtpReceiver;
|
|||
|
|
var sendEncodingParameters;
|
|||
|
|
var recvEncodingParameters;
|
|||
|
|
var localCapabilities;
|
|||
|
|
|
|||
|
|
var track;
|
|||
|
|
// FIXME: ensure the mediaSection has rtcp-mux set.
|
|||
|
|
var remoteCapabilities = SDPUtils.parseRtpParameters(mediaSection);
|
|||
|
|
var remoteIceParameters;
|
|||
|
|
var remoteDtlsParameters;
|
|||
|
|
if (!rejected) {
|
|||
|
|
remoteIceParameters = SDPUtils.getIceParameters(mediaSection,
|
|||
|
|
sessionpart);
|
|||
|
|
remoteDtlsParameters = SDPUtils.getDtlsParameters(mediaSection,
|
|||
|
|
sessionpart);
|
|||
|
|
remoteDtlsParameters.role = 'client';
|
|||
|
|
}
|
|||
|
|
recvEncodingParameters =
|
|||
|
|
SDPUtils.parseRtpEncodingParameters(mediaSection);
|
|||
|
|
|
|||
|
|
var rtcpParameters = SDPUtils.parseRtcpParameters(mediaSection);
|
|||
|
|
|
|||
|
|
var isComplete = SDPUtils.matchPrefix(mediaSection,
|
|||
|
|
'a=end-of-candidates', sessionpart).length > 0;
|
|||
|
|
var cands = SDPUtils.matchPrefix(mediaSection, 'a=candidate:')
|
|||
|
|
.map(function(cand) {
|
|||
|
|
return SDPUtils.parseCandidate(cand);
|
|||
|
|
})
|
|||
|
|
.filter(function(cand) {
|
|||
|
|
return cand.component === '1';
|
|||
|
|
});
|
|||
|
|
if (description.type === 'offer' && !rejected) {
|
|||
|
|
var transports = usingBundle && sdpMLineIndex > 0 ? {
|
|||
|
|
iceGatherer: self.transceivers[0].iceGatherer,
|
|||
|
|
iceTransport: self.transceivers[0].iceTransport,
|
|||
|
|
dtlsTransport: self.transceivers[0].dtlsTransport
|
|||
|
|
} : self._createIceAndDtlsTransports(mid, sdpMLineIndex);
|
|||
|
|
|
|||
|
|
if (isComplete && (!usingBundle || sdpMLineIndex === 0)) {
|
|||
|
|
transports.iceTransport.setRemoteCandidates(cands);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
localCapabilities = RTCRtpReceiver.getCapabilities(kind);
|
|||
|
|
|
|||
|
|
// filter RTX until additional stuff needed for RTX is implemented
|
|||
|
|
// in adapter.js
|
|||
|
|
if (browserDetails.version < 15019) {
|
|||
|
|
localCapabilities.codecs = localCapabilities.codecs.filter(
|
|||
|
|
function(codec) {
|
|||
|
|
return codec.name !== 'rtx';
|
|||
|
|
});
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
sendEncodingParameters = [{
|
|||
|
|
ssrc: (2 * sdpMLineIndex + 2) * 1001
|
|||
|
|
}];
|
|||
|
|
|
|||
|
|
if (direction === 'sendrecv' || direction === 'sendonly') {
|
|||
|
|
rtpReceiver = new RTCRtpReceiver(transports.dtlsTransport,
|
|||
|
|
kind);
|
|||
|
|
|
|||
|
|
track = rtpReceiver.track;
|
|||
|
|
// FIXME: does not work with Plan B.
|
|||
|
|
if (remoteMsid) {
|
|||
|
|
if (!streams[remoteMsid.stream]) {
|
|||
|
|
streams[remoteMsid.stream] = new MediaStream();
|
|||
|
|
Object.defineProperty(streams[remoteMsid.stream], 'id', {
|
|||
|
|
get: function() {
|
|||
|
|
return remoteMsid.stream;
|
|||
|
|
}
|
|||
|
|
});
|
|||
|
|
}
|
|||
|
|
Object.defineProperty(track, 'id', {
|
|||
|
|
get: function() {
|
|||
|
|
return remoteMsid.track;
|
|||
|
|
}
|
|||
|
|
});
|
|||
|
|
streams[remoteMsid.stream].addTrack(track);
|
|||
|
|
receiverList.push([track, rtpReceiver,
|
|||
|
|
streams[remoteMsid.stream]]);
|
|||
|
|
} else {
|
|||
|
|
if (!streams.default) {
|
|||
|
|
streams.default = new MediaStream();
|
|||
|
|
}
|
|||
|
|
streams.default.addTrack(track);
|
|||
|
|
receiverList.push([track, rtpReceiver, streams.default]);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// FIXME: look at direction.
|
|||
|
|
if (self.localStreams.length > 0 &&
|
|||
|
|
self.localStreams[0].getTracks().length >= sdpMLineIndex) {
|
|||
|
|
var localTrack;
|
|||
|
|
if (kind === 'audio') {
|
|||
|
|
localTrack = self.localStreams[0].getAudioTracks()[0];
|
|||
|
|
} else if (kind === 'video') {
|
|||
|
|
localTrack = self.localStreams[0].getVideoTracks()[0];
|
|||
|
|
}
|
|||
|
|
if (localTrack) {
|
|||
|
|
// add RTX
|
|||
|
|
if (browserDetails.version >= 15019 && kind === 'video') {
|
|||
|
|
sendEncodingParameters[0].rtx = {
|
|||
|
|
ssrc: (2 * sdpMLineIndex + 2) * 1001 + 1
|
|||
|
|
};
|
|||
|
|
}
|
|||
|
|
rtpSender = new RTCRtpSender(localTrack,
|
|||
|
|
transports.dtlsTransport);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
self.transceivers[sdpMLineIndex] = {
|
|||
|
|
iceGatherer: transports.iceGatherer,
|
|||
|
|
iceTransport: transports.iceTransport,
|
|||
|
|
dtlsTransport: transports.dtlsTransport,
|
|||
|
|
localCapabilities: localCapabilities,
|
|||
|
|
remoteCapabilities: remoteCapabilities,
|
|||
|
|
rtpSender: rtpSender,
|
|||
|
|
rtpReceiver: rtpReceiver,
|
|||
|
|
kind: kind,
|
|||
|
|
mid: mid,
|
|||
|
|
rtcpParameters: rtcpParameters,
|
|||
|
|
sendEncodingParameters: sendEncodingParameters,
|
|||
|
|
recvEncodingParameters: recvEncodingParameters
|
|||
|
|
};
|
|||
|
|
// Start the RTCRtpReceiver now. The RTPSender is started in
|
|||
|
|
// setLocalDescription.
|
|||
|
|
self._transceive(self.transceivers[sdpMLineIndex],
|
|||
|
|
false,
|
|||
|
|
direction === 'sendrecv' || direction === 'sendonly');
|
|||
|
|
} else if (description.type === 'answer' && !rejected) {
|
|||
|
|
if (usingBundle && sdpMLineIndex > 0) {
|
|||
|
|
self._disposeIceAndDtlsTransports(sdpMLineIndex);
|
|||
|
|
self.transceivers[sdpMLineIndex].iceGatherer =
|
|||
|
|
self.transceivers[0].iceGatherer;
|
|||
|
|
self.transceivers[sdpMLineIndex].iceTransport =
|
|||
|
|
self.transceivers[0].iceTransport;
|
|||
|
|
self.transceivers[sdpMLineIndex].dtlsTransport =
|
|||
|
|
self.transceivers[0].dtlsTransport;
|
|||
|
|
}
|
|||
|
|
transceiver = self.transceivers[sdpMLineIndex];
|
|||
|
|
iceGatherer = transceiver.iceGatherer;
|
|||
|
|
iceTransport = transceiver.iceTransport;
|
|||
|
|
dtlsTransport = transceiver.dtlsTransport;
|
|||
|
|
rtpSender = transceiver.rtpSender;
|
|||
|
|
rtpReceiver = transceiver.rtpReceiver;
|
|||
|
|
sendEncodingParameters = transceiver.sendEncodingParameters;
|
|||
|
|
localCapabilities = transceiver.localCapabilities;
|
|||
|
|
|
|||
|
|
self.transceivers[sdpMLineIndex].recvEncodingParameters =
|
|||
|
|
recvEncodingParameters;
|
|||
|
|
self.transceivers[sdpMLineIndex].remoteCapabilities =
|
|||
|
|
remoteCapabilities;
|
|||
|
|
self.transceivers[sdpMLineIndex].rtcpParameters = rtcpParameters;
|
|||
|
|
|
|||
|
|
if ((isIceLite || isComplete) && cands.length) {
|
|||
|
|
iceTransport.setRemoteCandidates(cands);
|
|||
|
|
}
|
|||
|
|
if (!usingBundle || sdpMLineIndex === 0) {
|
|||
|
|
iceTransport.start(iceGatherer, remoteIceParameters,
|
|||
|
|
'controlling');
|
|||
|
|
dtlsTransport.start(remoteDtlsParameters);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
self._transceive(transceiver,
|
|||
|
|
direction === 'sendrecv' || direction === 'recvonly',
|
|||
|
|
direction === 'sendrecv' || direction === 'sendonly');
|
|||
|
|
|
|||
|
|
if (rtpReceiver &&
|
|||
|
|
(direction === 'sendrecv' || direction === 'sendonly')) {
|
|||
|
|
track = rtpReceiver.track;
|
|||
|
|
receiverList.push([track, rtpReceiver]);
|
|||
|
|
if (remoteMsid) {
|
|||
|
|
if (!streams[remoteMsid.stream]) {
|
|||
|
|
streams[remoteMsid.stream] = new MediaStream();
|
|||
|
|
}
|
|||
|
|
streams[remoteMsid.stream].addTrack(track);
|
|||
|
|
} else {
|
|||
|
|
if (!streams.default) {
|
|||
|
|
streams.default = new MediaStream();
|
|||
|
|
}
|
|||
|
|
streams.default.addTrack(track);
|
|||
|
|
}
|
|||
|
|
} else {
|
|||
|
|
// FIXME: actually the receiver should be created later.
|
|||
|
|
delete transceiver.rtpReceiver;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
});
|
|||
|
|
this.usingBundle = usingBundle;
|
|||
|
|
|
|||
|
|
this.remoteDescription = {
|
|||
|
|
type: description.type,
|
|||
|
|
sdp: description.sdp
|
|||
|
|
};
|
|||
|
|
switch (description.type) {
|
|||
|
|
case 'offer':
|
|||
|
|
this._updateSignalingState('have-remote-offer');
|
|||
|
|
break;
|
|||
|
|
case 'answer':
|
|||
|
|
this._updateSignalingState('stable');
|
|||
|
|
break;
|
|||
|
|
default:
|
|||
|
|
throw new TypeError('unsupported type "' + description.type +
|
|||
|
|
'"');
|
|||
|
|
}
|
|||
|
|
Object.keys(streams).forEach(function(sid) {
|
|||
|
|
var stream = streams[sid];
|
|||
|
|
if (stream.getTracks().length) {
|
|||
|
|
self.remoteStreams.push(stream);
|
|||
|
|
var event = new Event('addstream');
|
|||
|
|
event.stream = stream;
|
|||
|
|
self.dispatchEvent(event);
|
|||
|
|
if (self.onaddstream !== null) {
|
|||
|
|
window.setTimeout(function() {
|
|||
|
|
self.onaddstream(event);
|
|||
|
|
}, 0);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
receiverList.forEach(function(item) {
|
|||
|
|
var track = item[0];
|
|||
|
|
var receiver = item[1];
|
|||
|
|
if (stream.id !== item[2].id) {
|
|||
|
|
return;
|
|||
|
|
}
|
|||
|
|
var trackEvent = new Event('track');
|
|||
|
|
trackEvent.track = track;
|
|||
|
|
trackEvent.receiver = receiver;
|
|||
|
|
trackEvent.streams = [stream];
|
|||
|
|
self.dispatchEvent(trackEvent);
|
|||
|
|
if (self.ontrack !== null) {
|
|||
|
|
window.setTimeout(function() {
|
|||
|
|
self.ontrack(trackEvent);
|
|||
|
|
}, 0);
|
|||
|
|
}
|
|||
|
|
});
|
|||
|
|
}
|
|||
|
|
});
|
|||
|
|
if (arguments.length > 1 && typeof arguments[1] === 'function') {
|
|||
|
|
window.setTimeout(arguments[1], 0);
|
|||
|
|
}
|
|||
|
|
return Promise.resolve();
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
window.RTCPeerConnection.prototype.close = function() {
|
|||
|
|
this.transceivers.forEach(function(transceiver) {
|
|||
|
|
/* not yet
|
|||
|
|
if (transceiver.iceGatherer) {
|
|||
|
|
transceiver.iceGatherer.close();
|
|||
|
|
}
|
|||
|
|
*/
|
|||
|
|
if (transceiver.iceTransport) {
|
|||
|
|
transceiver.iceTransport.stop();
|
|||
|
|
}
|
|||
|
|
if (transceiver.dtlsTransport) {
|
|||
|
|
transceiver.dtlsTransport.stop();
|
|||
|
|
}
|
|||
|
|
if (transceiver.rtpSender) {
|
|||
|
|
transceiver.rtpSender.stop();
|
|||
|
|
}
|
|||
|
|
if (transceiver.rtpReceiver) {
|
|||
|
|
transceiver.rtpReceiver.stop();
|
|||
|
|
}
|
|||
|
|
});
|
|||
|
|
// FIXME: clean up tracks, local streams, remote streams, etc
|
|||
|
|
this._updateSignalingState('closed');
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
// Update the signaling state.
|
|||
|
|
window.RTCPeerConnection.prototype._updateSignalingState =
|
|||
|
|
function(newState) {
|
|||
|
|
this.signalingState = newState;
|
|||
|
|
var event = new Event('signalingstatechange');
|
|||
|
|
this.dispatchEvent(event);
|
|||
|
|
if (this.onsignalingstatechange !== null) {
|
|||
|
|
this.onsignalingstatechange(event);
|
|||
|
|
}
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
// Determine whether to fire the negotiationneeded event.
|
|||
|
|
window.RTCPeerConnection.prototype._maybeFireNegotiationNeeded =
|
|||
|
|
function() {
|
|||
|
|
// Fire away (for now).
|
|||
|
|
var event = new Event('negotiationneeded');
|
|||
|
|
this.dispatchEvent(event);
|
|||
|
|
if (this.onnegotiationneeded !== null) {
|
|||
|
|
this.onnegotiationneeded(event);
|
|||
|
|
}
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
// Update the connection state.
|
|||
|
|
window.RTCPeerConnection.prototype._updateConnectionState = function() {
|
|||
|
|
var self = this;
|
|||
|
|
var newState;
|
|||
|
|
var states = {
|
|||
|
|
'new': 0,
|
|||
|
|
closed: 0,
|
|||
|
|
connecting: 0,
|
|||
|
|
checking: 0,
|
|||
|
|
connected: 0,
|
|||
|
|
completed: 0,
|
|||
|
|
failed: 0
|
|||
|
|
};
|
|||
|
|
this.transceivers.forEach(function(transceiver) {
|
|||
|
|
states[transceiver.iceTransport.state]++;
|
|||
|
|
states[transceiver.dtlsTransport.state]++;
|
|||
|
|
});
|
|||
|
|
// ICETransport.completed and connected are the same for this purpose.
|
|||
|
|
states.connected += states.completed;
|
|||
|
|
|
|||
|
|
newState = 'new';
|
|||
|
|
if (states.failed > 0) {
|
|||
|
|
newState = 'failed';
|
|||
|
|
} else if (states.connecting > 0 || states.checking > 0) {
|
|||
|
|
newState = 'connecting';
|
|||
|
|
} else if (states.disconnected > 0) {
|
|||
|
|
newState = 'disconnected';
|
|||
|
|
} else if (states.new > 0) {
|
|||
|
|
newState = 'new';
|
|||
|
|
} else if (states.connected > 0 || states.completed > 0) {
|
|||
|
|
newState = 'connected';
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if (newState !== self.iceConnectionState) {
|
|||
|
|
self.iceConnectionState = newState;
|
|||
|
|
var event = new Event('iceconnectionstatechange');
|
|||
|
|
this.dispatchEvent(event);
|
|||
|
|
if (this.oniceconnectionstatechange !== null) {
|
|||
|
|
this.oniceconnectionstatechange(event);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
window.RTCPeerConnection.prototype.createOffer = function() {
|
|||
|
|
var self = this;
|
|||
|
|
if (this._pendingOffer) {
|
|||
|
|
throw new Error('createOffer called while there is a pending offer.');
|
|||
|
|
}
|
|||
|
|
var offerOptions;
|
|||
|
|
if (arguments.length === 1 && typeof arguments[0] !== 'function') {
|
|||
|
|
offerOptions = arguments[0];
|
|||
|
|
} else if (arguments.length === 3) {
|
|||
|
|
offerOptions = arguments[2];
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
var tracks = [];
|
|||
|
|
var numAudioTracks = 0;
|
|||
|
|
var numVideoTracks = 0;
|
|||
|
|
// Default to sendrecv.
|
|||
|
|
if (this.localStreams.length) {
|
|||
|
|
numAudioTracks = this.localStreams.reduce(function(numTracks, stream) {
|
|||
|
|
return numTracks + stream.getAudioTracks().length;
|
|||
|
|
}, 0);
|
|||
|
|
numVideoTracks = this.localStreams.reduce(function(numTracks, stream) {
|
|||
|
|
return numTracks + stream.getVideoTracks().length;
|
|||
|
|
}, 0);
|
|||
|
|
}
|
|||
|
|
// Determine number of audio and video tracks we need to send/recv.
|
|||
|
|
if (offerOptions) {
|
|||
|
|
// Reject Chrome legacy constraints.
|
|||
|
|
if (offerOptions.mandatory || offerOptions.optional) {
|
|||
|
|
throw new TypeError(
|
|||
|
|
'Legacy mandatory/optional constraints not supported.');
|
|||
|
|
}
|
|||
|
|
if (offerOptions.offerToReceiveAudio !== undefined) {
|
|||
|
|
numAudioTracks = offerOptions.offerToReceiveAudio;
|
|||
|
|
}
|
|||
|
|
if (offerOptions.offerToReceiveVideo !== undefined) {
|
|||
|
|
numVideoTracks = offerOptions.offerToReceiveVideo;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// Push local streams.
|
|||
|
|
this.localStreams.forEach(function(localStream) {
|
|||
|
|
localStream.getTracks().forEach(function(track) {
|
|||
|
|
tracks.push({
|
|||
|
|
kind: track.kind,
|
|||
|
|
track: track,
|
|||
|
|
stream: localStream,
|
|||
|
|
wantReceive: track.kind === 'audio' ?
|
|||
|
|
numAudioTracks > 0 : numVideoTracks > 0
|
|||
|
|
});
|
|||
|
|
if (track.kind === 'audio') {
|
|||
|
|
numAudioTracks--;
|
|||
|
|
} else if (track.kind === 'video') {
|
|||
|
|
numVideoTracks--;
|
|||
|
|
}
|
|||
|
|
});
|
|||
|
|
});
|
|||
|
|
|
|||
|
|
// Create M-lines for recvonly streams.
|
|||
|
|
while (numAudioTracks > 0 || numVideoTracks > 0) {
|
|||
|
|
if (numAudioTracks > 0) {
|
|||
|
|
tracks.push({
|
|||
|
|
kind: 'audio',
|
|||
|
|
wantReceive: true
|
|||
|
|
});
|
|||
|
|
numAudioTracks--;
|
|||
|
|
}
|
|||
|
|
if (numVideoTracks > 0) {
|
|||
|
|
tracks.push({
|
|||
|
|
kind: 'video',
|
|||
|
|
wantReceive: true
|
|||
|
|
});
|
|||
|
|
numVideoTracks--;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
// reorder tracks
|
|||
|
|
tracks = sortTracks(tracks);
|
|||
|
|
|
|||
|
|
var sdp = SDPUtils.writeSessionBoilerplate();
|
|||
|
|
var transceivers = [];
|
|||
|
|
tracks.forEach(function(mline, sdpMLineIndex) {
|
|||
|
|
// For each track, create an ice gatherer, ice transport,
|
|||
|
|
// dtls transport, potentially rtpsender and rtpreceiver.
|
|||
|
|
var track = mline.track;
|
|||
|
|
var kind = mline.kind;
|
|||
|
|
var mid = SDPUtils.generateIdentifier();
|
|||
|
|
|
|||
|
|
var transports = self.usingBundle && sdpMLineIndex > 0 ? {
|
|||
|
|
iceGatherer: transceivers[0].iceGatherer,
|
|||
|
|
iceTransport: transceivers[0].iceTransport,
|
|||
|
|
dtlsTransport: transceivers[0].dtlsTransport
|
|||
|
|
} : self._createIceAndDtlsTransports(mid, sdpMLineIndex);
|
|||
|
|
|
|||
|
|
var localCapabilities = RTCRtpSender.getCapabilities(kind);
|
|||
|
|
// filter RTX until additional stuff needed for RTX is implemented
|
|||
|
|
// in adapter.js
|
|||
|
|
if (browserDetails.version < 15019) {
|
|||
|
|
localCapabilities.codecs = localCapabilities.codecs.filter(
|
|||
|
|
function(codec) {
|
|||
|
|
return codec.name !== 'rtx';
|
|||
|
|
});
|
|||
|
|
}
|
|||
|
|
localCapabilities.codecs.forEach(function(codec) {
|
|||
|
|
// work around https://bugs.chromium.org/p/webrtc/issues/detail?id=6552
|
|||
|
|
// by adding level-asymmetry-allowed=1
|
|||
|
|
if (codec.name === 'H264' &&
|
|||
|
|
codec.parameters['level-asymmetry-allowed'] === undefined) {
|
|||
|
|
codec.parameters['level-asymmetry-allowed'] = '1';
|
|||
|
|
}
|
|||
|
|
});
|
|||
|
|
|
|||
|
|
var rtpSender;
|
|||
|
|
var rtpReceiver;
|
|||
|
|
|
|||
|
|
// generate an ssrc now, to be used later in rtpSender.send
|
|||
|
|
var sendEncodingParameters = [{
|
|||
|
|
ssrc: (2 * sdpMLineIndex + 1) * 1001
|
|||
|
|
}];
|
|||
|
|
if (track) {
|
|||
|
|
// add RTX
|
|||
|
|
if (browserDetails.version >= 15019 && kind === 'video') {
|
|||
|
|
sendEncodingParameters[0].rtx = {
|
|||
|
|
ssrc: (2 * sdpMLineIndex + 1) * 1001 + 1
|
|||
|
|
};
|
|||
|
|
}
|
|||
|
|
rtpSender = new RTCRtpSender(track, transports.dtlsTransport);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
if (mline.wantReceive) {
|
|||
|
|
rtpReceiver = new RTCRtpReceiver(transports.dtlsTransport, kind);
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
transceivers[sdpMLineIndex] = {
|
|||
|
|
iceGatherer: transports.iceGatherer,
|
|||
|
|
iceTransport: transports.iceTransport,
|
|||
|
|
dtlsTransport: transports.dtlsTransport,
|
|||
|
|
localCapabilities: localCapabilities,
|
|||
|
|
remoteCapabilities: null,
|
|||
|
|
rtpSender: rtpSender,
|
|||
|
|
rtpReceiver: rtpReceiver,
|
|||
|
|
kind: kind,
|
|||
|
|
mid: mid,
|
|||
|
|
sendEncodingParameters: sendEncodingParameters,
|
|||
|
|
recvEncodingParameters: null
|
|||
|
|
};
|
|||
|
|
});
|
|||
|
|
|
|||
|
|
// always offer BUNDLE and dispose on return if not supported.
|
|||
|
|
if (this._config.bundlePolicy !== 'max-compat') {
|
|||
|
|
sdp += 'a=group:BUNDLE ' + transceivers.map(function(t) {
|
|||
|
|
return t.mid;
|
|||
|
|
}).join(' ') + '\r\n';
|
|||
|
|
}
|
|||
|
|
sdp += 'a=ice-options:trickle\r\n';
|
|||
|
|
|
|||
|
|
tracks.forEach(function(mline, sdpMLineIndex) {
|
|||
|
|
var transceiver = transceivers[sdpMLineIndex];
|
|||
|
|
sdp += SDPUtils.writeMediaSection(transceiver,
|
|||
|
|
transceiver.localCapabilities, 'offer', mline.stream);
|
|||
|
|
sdp += 'a=rtcp-rsize\r\n';
|
|||
|
|
});
|
|||
|
|
|
|||
|
|
this._pendingOffer = transceivers;
|
|||
|
|
var desc = new RTCSessionDescription({
|
|||
|
|
type: 'offer',
|
|||
|
|
sdp: sdp
|
|||
|
|
});
|
|||
|
|
if (arguments.length && typeof arguments[0] === 'function') {
|
|||
|
|
window.setTimeout(arguments[0], 0, desc);
|
|||
|
|
}
|
|||
|
|
return Promise.resolve(desc);
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
window.RTCPeerConnection.prototype.createAnswer = function() {
|
|||
|
|
var self = this;
|
|||
|
|
|
|||
|
|
var sdp = SDPUtils.writeSessionBoilerplate();
|
|||
|
|
if (this.usingBundle) {
|
|||
|
|
sdp += 'a=group:BUNDLE ' + this.transceivers.map(function(t) {
|
|||
|
|
return t.mid;
|
|||
|
|
}).join(' ') + '\r\n';
|
|||
|
|
}
|
|||
|
|
this.transceivers.forEach(function(transceiver) {
|
|||
|
|
if (transceiver.isDatachannel) {
|
|||
|
|
sdp += 'm=application 0 DTLS/SCTP 5000\r\n' +
|
|||
|
|
'c=IN IP4 0.0.0.0\r\n' +
|
|||
|
|
'a=mid:' + transceiver.mid + '\r\n';
|
|||
|
|
return;
|
|||
|
|
}
|
|||
|
|
// Calculate intersection of capabilities.
|
|||
|
|
var commonCapabilities = self._getCommonCapabilities(
|
|||
|
|
transceiver.localCapabilities,
|
|||
|
|
transceiver.remoteCapabilities);
|
|||
|
|
|
|||
|
|
var hasRtx = commonCapabilities.codecs.filter(function(c) {
|
|||
|
|
return c.name.toLowerCase() === 'rtx';
|
|||
|
|
}).length;
|
|||
|
|
if (!hasRtx && transceiver.sendEncodingParameters[0].rtx) {
|
|||
|
|
delete transceiver.sendEncodingParameters[0].rtx;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
sdp += SDPUtils.writeMediaSection(transceiver, commonCapabilities,
|
|||
|
|
'answer', self.localStreams[0]);
|
|||
|
|
if (transceiver.rtcpParameters &&
|
|||
|
|
transceiver.rtcpParameters.reducedSize) {
|
|||
|
|
sdp += 'a=rtcp-rsize\r\n';
|
|||
|
|
}
|
|||
|
|
});
|
|||
|
|
|
|||
|
|
var desc = new RTCSessionDescription({
|
|||
|
|
type: 'answer',
|
|||
|
|
sdp: sdp
|
|||
|
|
});
|
|||
|
|
if (arguments.length && typeof arguments[0] === 'function') {
|
|||
|
|
window.setTimeout(arguments[0], 0, desc);
|
|||
|
|
}
|
|||
|
|
return Promise.resolve(desc);
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
window.RTCPeerConnection.prototype.addIceCandidate = function(candidate) {
|
|||
|
|
if (!candidate) {
|
|||
|
|
for (var j = 0; j < this.transceivers.length; j++) {
|
|||
|
|
this.transceivers[j].iceTransport.addRemoteCandidate({});
|
|||
|
|
if (this.usingBundle) {
|
|||
|
|
return Promise.resolve();
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
} else {
|
|||
|
|
var mLineIndex = candidate.sdpMLineIndex;
|
|||
|
|
if (candidate.sdpMid) {
|
|||
|
|
for (var i = 0; i < this.transceivers.length; i++) {
|
|||
|
|
if (this.transceivers[i].mid === candidate.sdpMid) {
|
|||
|
|
mLineIndex = i;
|
|||
|
|
break;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
var transceiver = this.transceivers[mLineIndex];
|
|||
|
|
if (transceiver) {
|
|||
|
|
var cand = Object.keys(candidate.candidate).length > 0 ?
|
|||
|
|
SDPUtils.parseCandidate(candidate.candidate) : {};
|
|||
|
|
// Ignore Chrome's invalid candidates since Edge does not like them.
|
|||
|
|
if (cand.protocol === 'tcp' && (cand.port === 0 || cand.port === 9)) {
|
|||
|
|
return Promise.resolve();
|
|||
|
|
}
|
|||
|
|
// Ignore RTCP candidates, we assume RTCP-MUX.
|
|||
|
|
if (cand.component !== '1') {
|
|||
|
|
return Promise.resolve();
|
|||
|
|
}
|
|||
|
|
transceiver.iceTransport.addRemoteCandidate(cand);
|
|||
|
|
|
|||
|
|
// update the remoteDescription.
|
|||
|
|
var sections = SDPUtils.splitSections(this.remoteDescription.sdp);
|
|||
|
|
sections[mLineIndex + 1] += (cand.type ? candidate.candidate.trim()
|
|||
|
|
: 'a=end-of-candidates') + '\r\n';
|
|||
|
|
this.remoteDescription.sdp = sections.join('');
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
if (arguments.length > 1 && typeof arguments[1] === 'function') {
|
|||
|
|
window.setTimeout(arguments[1], 0);
|
|||
|
|
}
|
|||
|
|
return Promise.resolve();
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
window.RTCPeerConnection.prototype.getStats = function() {
|
|||
|
|
var promises = [];
|
|||
|
|
this.transceivers.forEach(function(transceiver) {
|
|||
|
|
['rtpSender', 'rtpReceiver', 'iceGatherer', 'iceTransport',
|
|||
|
|
'dtlsTransport'].forEach(function(method) {
|
|||
|
|
if (transceiver[method]) {
|
|||
|
|
promises.push(transceiver[method].getStats());
|
|||
|
|
}
|
|||
|
|
});
|
|||
|
|
});
|
|||
|
|
var cb = arguments.length > 1 && typeof arguments[1] === 'function' &&
|
|||
|
|
arguments[1];
|
|||
|
|
var fixStatsType = function(stat) {
|
|||
|
|
return {
|
|||
|
|
inboundrtp: 'inbound-rtp',
|
|||
|
|
outboundrtp: 'outbound-rtp',
|
|||
|
|
candidatepair: 'candidate-pair',
|
|||
|
|
localcandidate: 'local-candidate',
|
|||
|
|
remotecandidate: 'remote-candidate'
|
|||
|
|
}[stat.type] || stat.type;
|
|||
|
|
};
|
|||
|
|
return new Promise(function(resolve) {
|
|||
|
|
// shim getStats with maplike support
|
|||
|
|
var results = new Map();
|
|||
|
|
Promise.all(promises).then(function(res) {
|
|||
|
|
res.forEach(function(result) {
|
|||
|
|
Object.keys(result).forEach(function(id) {
|
|||
|
|
result[id].type = fixStatsType(result[id]);
|
|||
|
|
results.set(id, result[id]);
|
|||
|
|
});
|
|||
|
|
});
|
|||
|
|
if (cb) {
|
|||
|
|
window.setTimeout(cb, 0, results);
|
|||
|
|
}
|
|||
|
|
resolve(results);
|
|||
|
|
});
|
|||
|
|
});
|
|||
|
|
};
|
|||
|
|
},
|
|||
|
|
shimReplaceTrack: function() {
|
|||
|
|
// ORTC has replaceTrack -- https://github.com/w3c/ortc/issues/614
|
|||
|
|
if (window.RTCRtpSender && !('replaceTrack' in RTCRtpSender.prototype)) {
|
|||
|
|
RTCRtpSender.prototype.replaceTrack = RTCRtpSender.prototype.setTrack;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
// Expose public methods.
|
|||
|
|
module.exports = {
|
|||
|
|
shimPeerConnection: edgeShim.shimPeerConnection,
|
|||
|
|
shimGetUserMedia: require('./getusermedia'),
|
|||
|
|
shimReplaceTrack: edgeShim.shimReplaceTrack
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
},{"../utils":10,"./getusermedia":6,"sdp":1}],6:[function(require,module,exports){
|
|||
|
|
/*
|
|||
|
|
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
|
|||
|
|
*
|
|||
|
|
* Use of this source code is governed by a BSD-style license
|
|||
|
|
* that can be found in the LICENSE file in the root of the source
|
|||
|
|
* tree.
|
|||
|
|
*/
|
|||
|
|
/* eslint-env node */
|
|||
|
|
'use strict';
|
|||
|
|
|
|||
|
|
// Expose public methods.
|
|||
|
|
module.exports = function() {
|
|||
|
|
var shimError_ = function(e) {
|
|||
|
|
return {
|
|||
|
|
name: {PermissionDeniedError: 'NotAllowedError'}[e.name] || e.name,
|
|||
|
|
message: e.message,
|
|||
|
|
constraint: e.constraint,
|
|||
|
|
toString: function() {
|
|||
|
|
return this.name;
|
|||
|
|
}
|
|||
|
|
};
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
// getUserMedia error shim.
|
|||
|
|
var origGetUserMedia = navigator.mediaDevices.getUserMedia.
|
|||
|
|
bind(navigator.mediaDevices);
|
|||
|
|
navigator.mediaDevices.getUserMedia = function(c) {
|
|||
|
|
return origGetUserMedia(c).catch(function(e) {
|
|||
|
|
return Promise.reject(shimError_(e));
|
|||
|
|
});
|
|||
|
|
};
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
},{}],7:[function(require,module,exports){
|
|||
|
|
/*
|
|||
|
|
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
|
|||
|
|
*
|
|||
|
|
* Use of this source code is governed by a BSD-style license
|
|||
|
|
* that can be found in the LICENSE file in the root of the source
|
|||
|
|
* tree.
|
|||
|
|
*/
|
|||
|
|
/* eslint-env node */
|
|||
|
|
'use strict';
|
|||
|
|
|
|||
|
|
var browserDetails = require('../utils').browserDetails;
|
|||
|
|
|
|||
|
|
var firefoxShim = {
|
|||
|
|
shimOnTrack: function() {
|
|||
|
|
if (typeof window === 'object' && window.RTCPeerConnection && !('ontrack' in
|
|||
|
|
window.RTCPeerConnection.prototype)) {
|
|||
|
|
Object.defineProperty(window.RTCPeerConnection.prototype, 'ontrack', {
|
|||
|
|
get: function() {
|
|||
|
|
return this._ontrack;
|
|||
|
|
},
|
|||
|
|
set: function(f) {
|
|||
|
|
if (this._ontrack) {
|
|||
|
|
this.removeEventListener('track', this._ontrack);
|
|||
|
|
this.removeEventListener('addstream', this._ontrackpoly);
|
|||
|
|
}
|
|||
|
|
this.addEventListener('track', this._ontrack = f);
|
|||
|
|
this.addEventListener('addstream', this._ontrackpoly = function(e) {
|
|||
|
|
e.stream.getTracks().forEach(function(track) {
|
|||
|
|
var event = new Event('track');
|
|||
|
|
event.track = track;
|
|||
|
|
event.receiver = {track: track};
|
|||
|
|
event.streams = [e.stream];
|
|||
|
|
this.dispatchEvent(event);
|
|||
|
|
}.bind(this));
|
|||
|
|
}.bind(this));
|
|||
|
|
}
|
|||
|
|
});
|
|||
|
|
}
|
|||
|
|
},
|
|||
|
|
|
|||
|
|
shimSourceObject: function() {
|
|||
|
|
// Firefox has supported mozSrcObject since FF22, unprefixed in 42.
|
|||
|
|
if (typeof window === 'object') {
|
|||
|
|
if (window.HTMLMediaElement &&
|
|||
|
|
!('srcObject' in window.HTMLMediaElement.prototype)) {
|
|||
|
|
// Shim the srcObject property, once, when HTMLMediaElement is found.
|
|||
|
|
Object.defineProperty(window.HTMLMediaElement.prototype, 'srcObject', {
|
|||
|
|
get: function() {
|
|||
|
|
return this.mozSrcObject;
|
|||
|
|
},
|
|||
|
|
set: function(stream) {
|
|||
|
|
this.mozSrcObject = stream;
|
|||
|
|
}
|
|||
|
|
});
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
},
|
|||
|
|
|
|||
|
|
shimPeerConnection: function() {
|
|||
|
|
if (typeof window !== 'object' || !(window.RTCPeerConnection ||
|
|||
|
|
window.mozRTCPeerConnection)) {
|
|||
|
|
return; // probably media.peerconnection.enabled=false in about:config
|
|||
|
|
}
|
|||
|
|
// The RTCPeerConnection object.
|
|||
|
|
if (!window.RTCPeerConnection) {
|
|||
|
|
window.RTCPeerConnection = function(pcConfig, pcConstraints) {
|
|||
|
|
if (browserDetails.version < 38) {
|
|||
|
|
// .urls is not supported in FF < 38.
|
|||
|
|
// create RTCIceServers with a single url.
|
|||
|
|
if (pcConfig && pcConfig.iceServers) {
|
|||
|
|
var newIceServers = [];
|
|||
|
|
for (var i = 0; i < pcConfig.iceServers.length; i++) {
|
|||
|
|
var server = pcConfig.iceServers[i];
|
|||
|
|
if (server.hasOwnProperty('urls')) {
|
|||
|
|
for (var j = 0; j < server.urls.length; j++) {
|
|||
|
|
var newServer = {
|
|||
|
|
url: server.urls[j]
|
|||
|
|
};
|
|||
|
|
if (server.urls[j].indexOf('turn') === 0) {
|
|||
|
|
newServer.username = server.username;
|
|||
|
|
newServer.credential = server.credential;
|
|||
|
|
}
|
|||
|
|
newIceServers.push(newServer);
|
|||
|
|
}
|
|||
|
|
} else {
|
|||
|
|
newIceServers.push(pcConfig.iceServers[i]);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
pcConfig.iceServers = newIceServers;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
return new mozRTCPeerConnection(pcConfig, pcConstraints);
|
|||
|
|
};
|
|||
|
|
window.RTCPeerConnection.prototype = mozRTCPeerConnection.prototype;
|
|||
|
|
|
|||
|
|
// wrap static methods. Currently just generateCertificate.
|
|||
|
|
if (mozRTCPeerConnection.generateCertificate) {
|
|||
|
|
Object.defineProperty(window.RTCPeerConnection, 'generateCertificate', {
|
|||
|
|
get: function() {
|
|||
|
|
return mozRTCPeerConnection.generateCertificate;
|
|||
|
|
}
|
|||
|
|
});
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
window.RTCSessionDescription = mozRTCSessionDescription;
|
|||
|
|
window.RTCIceCandidate = mozRTCIceCandidate;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// shim away need for obsolete RTCIceCandidate/RTCSessionDescription.
|
|||
|
|
['setLocalDescription', 'setRemoteDescription', 'addIceCandidate']
|
|||
|
|
.forEach(function(method) {
|
|||
|
|
var nativeMethod = RTCPeerConnection.prototype[method];
|
|||
|
|
RTCPeerConnection.prototype[method] = function() {
|
|||
|
|
arguments[0] = new ((method === 'addIceCandidate') ?
|
|||
|
|
RTCIceCandidate : RTCSessionDescription)(arguments[0]);
|
|||
|
|
return nativeMethod.apply(this, arguments);
|
|||
|
|
};
|
|||
|
|
});
|
|||
|
|
|
|||
|
|
// support for addIceCandidate(null or undefined)
|
|||
|
|
var nativeAddIceCandidate =
|
|||
|
|
RTCPeerConnection.prototype.addIceCandidate;
|
|||
|
|
RTCPeerConnection.prototype.addIceCandidate = function() {
|
|||
|
|
if (!arguments[0]) {
|
|||
|
|
if (arguments[1]) {
|
|||
|
|
arguments[1].apply(null);
|
|||
|
|
}
|
|||
|
|
return Promise.resolve();
|
|||
|
|
}
|
|||
|
|
return nativeAddIceCandidate.apply(this, arguments);
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
// shim getStats with maplike support
|
|||
|
|
var makeMapStats = function(stats) {
|
|||
|
|
var map = new Map();
|
|||
|
|
Object.keys(stats).forEach(function(key) {
|
|||
|
|
map.set(key, stats[key]);
|
|||
|
|
map[key] = stats[key];
|
|||
|
|
});
|
|||
|
|
return map;
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
var modernStatsTypes = {
|
|||
|
|
inboundrtp: 'inbound-rtp',
|
|||
|
|
outboundrtp: 'outbound-rtp',
|
|||
|
|
candidatepair: 'candidate-pair',
|
|||
|
|
localcandidate: 'local-candidate',
|
|||
|
|
remotecandidate: 'remote-candidate'
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
var nativeGetStats = RTCPeerConnection.prototype.getStats;
|
|||
|
|
RTCPeerConnection.prototype.getStats = function(selector, onSucc, onErr) {
|
|||
|
|
return nativeGetStats.apply(this, [selector || null])
|
|||
|
|
.then(function(stats) {
|
|||
|
|
if (browserDetails.version < 48) {
|
|||
|
|
stats = makeMapStats(stats);
|
|||
|
|
}
|
|||
|
|
if (browserDetails.version < 53 && !onSucc) {
|
|||
|
|
// Shim only promise getStats with spec-hyphens in type names
|
|||
|
|
// Leave callback version alone; misc old uses of forEach before Map
|
|||
|
|
try {
|
|||
|
|
stats.forEach(function(stat) {
|
|||
|
|
stat.type = modernStatsTypes[stat.type] || stat.type;
|
|||
|
|
});
|
|||
|
|
} catch (e) {
|
|||
|
|
if (e.name !== 'TypeError') {
|
|||
|
|
throw e;
|
|||
|
|
}
|
|||
|
|
// Avoid TypeError: "type" is read-only, in old versions. 34-43ish
|
|||
|
|
stats.forEach(function(stat, i) {
|
|||
|
|
stats.set(i, Object.assign({}, stat, {
|
|||
|
|
type: modernStatsTypes[stat.type] || stat.type
|
|||
|
|
}));
|
|||
|
|
});
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
return stats;
|
|||
|
|
})
|
|||
|
|
.then(onSucc, onErr);
|
|||
|
|
};
|
|||
|
|
}
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
// Expose public methods.
|
|||
|
|
module.exports = {
|
|||
|
|
shimOnTrack: firefoxShim.shimOnTrack,
|
|||
|
|
shimSourceObject: firefoxShim.shimSourceObject,
|
|||
|
|
shimPeerConnection: firefoxShim.shimPeerConnection,
|
|||
|
|
shimGetUserMedia: require('./getusermedia')
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
},{"../utils":10,"./getusermedia":8}],8:[function(require,module,exports){
|
|||
|
|
/*
|
|||
|
|
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
|
|||
|
|
*
|
|||
|
|
* Use of this source code is governed by a BSD-style license
|
|||
|
|
* that can be found in the LICENSE file in the root of the source
|
|||
|
|
* tree.
|
|||
|
|
*/
|
|||
|
|
/* eslint-env node */
|
|||
|
|
'use strict';
|
|||
|
|
|
|||
|
|
var logging = require('../utils').log;
|
|||
|
|
var browserDetails = require('../utils').browserDetails;
|
|||
|
|
|
|||
|
|
// Expose public methods.
|
|||
|
|
module.exports = function() {
|
|||
|
|
var shimError_ = function(e) {
|
|||
|
|
return {
|
|||
|
|
name: {
|
|||
|
|
NotSupportedError: 'TypeError',
|
|||
|
|
SecurityError: 'NotAllowedError',
|
|||
|
|
PermissionDeniedError: 'NotAllowedError'
|
|||
|
|
}[e.name] || e.name,
|
|||
|
|
message: {
|
|||
|
|
'The operation is insecure.': 'The request is not allowed by the ' +
|
|||
|
|
'user agent or the platform in the current context.'
|
|||
|
|
}[e.message] || e.message,
|
|||
|
|
constraint: e.constraint,
|
|||
|
|
toString: function() {
|
|||
|
|
return this.name + (this.message && ': ') + this.message;
|
|||
|
|
}
|
|||
|
|
};
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
// getUserMedia constraints shim.
|
|||
|
|
var getUserMedia_ = function(constraints, onSuccess, onError) {
|
|||
|
|
var constraintsToFF37_ = function(c) {
|
|||
|
|
if (typeof c !== 'object' || c.require) {
|
|||
|
|
return c;
|
|||
|
|
}
|
|||
|
|
var require = [];
|
|||
|
|
Object.keys(c).forEach(function(key) {
|
|||
|
|
if (key === 'require' || key === 'advanced' || key === 'mediaSource') {
|
|||
|
|
return;
|
|||
|
|
}
|
|||
|
|
var r = c[key] = (typeof c[key] === 'object') ?
|
|||
|
|
c[key] : {ideal: c[key]};
|
|||
|
|
if (r.min !== undefined ||
|
|||
|
|
r.max !== undefined || r.exact !== undefined) {
|
|||
|
|
require.push(key);
|
|||
|
|
}
|
|||
|
|
if (r.exact !== undefined) {
|
|||
|
|
if (typeof r.exact === 'number') {
|
|||
|
|
r. min = r.max = r.exact;
|
|||
|
|
} else {
|
|||
|
|
c[key] = r.exact;
|
|||
|
|
}
|
|||
|
|
delete r.exact;
|
|||
|
|
}
|
|||
|
|
if (r.ideal !== undefined) {
|
|||
|
|
c.advanced = c.advanced || [];
|
|||
|
|
var oc = {};
|
|||
|
|
if (typeof r.ideal === 'number') {
|
|||
|
|
oc[key] = {min: r.ideal, max: r.ideal};
|
|||
|
|
} else {
|
|||
|
|
oc[key] = r.ideal;
|
|||
|
|
}
|
|||
|
|
c.advanced.push(oc);
|
|||
|
|
delete r.ideal;
|
|||
|
|
if (!Object.keys(r).length) {
|
|||
|
|
delete c[key];
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
});
|
|||
|
|
if (require.length) {
|
|||
|
|
c.require = require;
|
|||
|
|
}
|
|||
|
|
return c;
|
|||
|
|
};
|
|||
|
|
constraints = JSON.parse(JSON.stringify(constraints));
|
|||
|
|
if (browserDetails.version < 38) {
|
|||
|
|
logging('spec: ' + JSON.stringify(constraints));
|
|||
|
|
if (constraints.audio) {
|
|||
|
|
constraints.audio = constraintsToFF37_(constraints.audio);
|
|||
|
|
}
|
|||
|
|
if (constraints.video) {
|
|||
|
|
constraints.video = constraintsToFF37_(constraints.video);
|
|||
|
|
}
|
|||
|
|
logging('ff37: ' + JSON.stringify(constraints));
|
|||
|
|
}
|
|||
|
|
return navigator.mozGetUserMedia(constraints, onSuccess, function(e) {
|
|||
|
|
onError(shimError_(e));
|
|||
|
|
});
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
// Returns the result of getUserMedia as a Promise.
|
|||
|
|
var getUserMediaPromise_ = function(constraints) {
|
|||
|
|
return new Promise(function(resolve, reject) {
|
|||
|
|
getUserMedia_(constraints, resolve, reject);
|
|||
|
|
});
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
// Shim for mediaDevices on older versions.
|
|||
|
|
if (!navigator.mediaDevices) {
|
|||
|
|
navigator.mediaDevices = {getUserMedia: getUserMediaPromise_,
|
|||
|
|
addEventListener: function() { },
|
|||
|
|
removeEventListener: function() { }
|
|||
|
|
};
|
|||
|
|
}
|
|||
|
|
navigator.mediaDevices.enumerateDevices =
|
|||
|
|
navigator.mediaDevices.enumerateDevices || function() {
|
|||
|
|
return new Promise(function(resolve) {
|
|||
|
|
var infos = [
|
|||
|
|
{kind: 'audioinput', deviceId: 'default', label: '', groupId: ''},
|
|||
|
|
{kind: 'videoinput', deviceId: 'default', label: '', groupId: ''}
|
|||
|
|
];
|
|||
|
|
resolve(infos);
|
|||
|
|
});
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
if (browserDetails.version < 41) {
|
|||
|
|
// Work around http://bugzil.la/1169665
|
|||
|
|
var orgEnumerateDevices =
|
|||
|
|
navigator.mediaDevices.enumerateDevices.bind(navigator.mediaDevices);
|
|||
|
|
navigator.mediaDevices.enumerateDevices = function() {
|
|||
|
|
return orgEnumerateDevices().then(undefined, function(e) {
|
|||
|
|
if (e.name === 'NotFoundError') {
|
|||
|
|
return [];
|
|||
|
|
}
|
|||
|
|
throw e;
|
|||
|
|
});
|
|||
|
|
};
|
|||
|
|
}
|
|||
|
|
if (browserDetails.version < 49) {
|
|||
|
|
var origGetUserMedia = navigator.mediaDevices.getUserMedia.
|
|||
|
|
bind(navigator.mediaDevices);
|
|||
|
|
navigator.mediaDevices.getUserMedia = function(c) {
|
|||
|
|
return origGetUserMedia(c).then(function(stream) {
|
|||
|
|
// Work around https://bugzil.la/802326
|
|||
|
|
if (c.audio && !stream.getAudioTracks().length ||
|
|||
|
|
c.video && !stream.getVideoTracks().length) {
|
|||
|
|
stream.getTracks().forEach(function(track) {
|
|||
|
|
track.stop();
|
|||
|
|
});
|
|||
|
|
throw new DOMException('The object can not be found here.',
|
|||
|
|
'NotFoundError');
|
|||
|
|
}
|
|||
|
|
return stream;
|
|||
|
|
}, function(e) {
|
|||
|
|
return Promise.reject(shimError_(e));
|
|||
|
|
});
|
|||
|
|
};
|
|||
|
|
}
|
|||
|
|
navigator.getUserMedia = function(constraints, onSuccess, onError) {
|
|||
|
|
if (browserDetails.version < 44) {
|
|||
|
|
return getUserMedia_(constraints, onSuccess, onError);
|
|||
|
|
}
|
|||
|
|
// Replace Firefox 44+'s deprecation warning with unprefixed version.
|
|||
|
|
console.warn('navigator.getUserMedia has been replaced by ' +
|
|||
|
|
'navigator.mediaDevices.getUserMedia');
|
|||
|
|
navigator.mediaDevices.getUserMedia(constraints).then(onSuccess, onError);
|
|||
|
|
};
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
},{"../utils":10}],9:[function(require,module,exports){
|
|||
|
|
/*
|
|||
|
|
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
|
|||
|
|
*
|
|||
|
|
* Use of this source code is governed by a BSD-style license
|
|||
|
|
* that can be found in the LICENSE file in the root of the source
|
|||
|
|
* tree.
|
|||
|
|
*/
|
|||
|
|
'use strict';
|
|||
|
|
var safariShim = {
|
|||
|
|
// TODO: DrAlex, should be here, double check against LayoutTests
|
|||
|
|
|
|||
|
|
// TODO: once the back-end for the mac port is done, add.
|
|||
|
|
// TODO: check for webkitGTK+
|
|||
|
|
// shimPeerConnection: function() { },
|
|||
|
|
|
|||
|
|
shimOnAddStream: function() {
|
|||
|
|
if (typeof window === 'object' && window.RTCPeerConnection &&
|
|||
|
|
!('onaddstream' in window.RTCPeerConnection.prototype)) {
|
|||
|
|
Object.defineProperty(window.RTCPeerConnection.prototype, 'onaddstream', {
|
|||
|
|
get: function() {
|
|||
|
|
return this._onaddstream;
|
|||
|
|
},
|
|||
|
|
set: function(f) {
|
|||
|
|
if (this._onaddstream) {
|
|||
|
|
this.removeEventListener('addstream', this._onaddstream);
|
|||
|
|
this.removeEventListener('track', this._onaddstreampoly);
|
|||
|
|
}
|
|||
|
|
this.addEventListener('addstream', this._onaddstream = f);
|
|||
|
|
this.addEventListener('track', this._onaddstreampoly = function(e) {
|
|||
|
|
var stream = e.streams[0];
|
|||
|
|
if (!this._streams) {
|
|||
|
|
this._streams = [];
|
|||
|
|
}
|
|||
|
|
if (this._streams.indexOf(stream) >= 0) {
|
|||
|
|
return;
|
|||
|
|
}
|
|||
|
|
this._streams.push(stream);
|
|||
|
|
var event = new Event('addstream');
|
|||
|
|
event.stream = e.streams[0];
|
|||
|
|
this.dispatchEvent(event);
|
|||
|
|
}.bind(this));
|
|||
|
|
}
|
|||
|
|
});
|
|||
|
|
}
|
|||
|
|
},
|
|||
|
|
|
|||
|
|
shimGetUserMedia: function() {
|
|||
|
|
if (!navigator.getUserMedia) {
|
|||
|
|
if (navigator.webkitGetUserMedia) {
|
|||
|
|
navigator.getUserMedia = navigator.webkitGetUserMedia.bind(navigator);
|
|||
|
|
} else if (navigator.mediaDevices &&
|
|||
|
|
navigator.mediaDevices.getUserMedia) {
|
|||
|
|
navigator.getUserMedia = function(constraints, cb, errcb) {
|
|||
|
|
navigator.mediaDevices.getUserMedia(constraints)
|
|||
|
|
.then(cb, errcb);
|
|||
|
|
}.bind(navigator);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
// Expose public methods.
|
|||
|
|
module.exports = {
|
|||
|
|
shimOnAddStream: safariShim.shimOnAddStream,
|
|||
|
|
shimGetUserMedia: safariShim.shimGetUserMedia
|
|||
|
|
// TODO
|
|||
|
|
// shimPeerConnection: safariShim.shimPeerConnection
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
},{}],10:[function(require,module,exports){
|
|||
|
|
/*
|
|||
|
|
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
|
|||
|
|
*
|
|||
|
|
* Use of this source code is governed by a BSD-style license
|
|||
|
|
* that can be found in the LICENSE file in the root of the source
|
|||
|
|
* tree.
|
|||
|
|
*/
|
|||
|
|
/* eslint-env node */
|
|||
|
|
'use strict';
|
|||
|
|
|
|||
|
|
var logDisabled_ = true;
|
|||
|
|
|
|||
|
|
// Utility methods.
|
|||
|
|
var utils = {
|
|||
|
|
disableLog: function(bool) {
|
|||
|
|
if (typeof bool !== 'boolean') {
|
|||
|
|
return new Error('Argument type: ' + typeof bool +
|
|||
|
|
'. Please use a boolean.');
|
|||
|
|
}
|
|||
|
|
logDisabled_ = bool;
|
|||
|
|
return (bool) ? 'adapter.js logging disabled' :
|
|||
|
|
'adapter.js logging enabled';
|
|||
|
|
},
|
|||
|
|
|
|||
|
|
log: function() {
|
|||
|
|
if (typeof window === 'object') {
|
|||
|
|
if (logDisabled_) {
|
|||
|
|
return;
|
|||
|
|
}
|
|||
|
|
if (typeof console !== 'undefined' && typeof console.log === 'function') {
|
|||
|
|
console.log.apply(console, arguments);
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
},
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* Extract browser version out of the provided user agent string.
|
|||
|
|
*
|
|||
|
|
* @param {!string} uastring userAgent string.
|
|||
|
|
* @param {!string} expr Regular expression used as match criteria.
|
|||
|
|
* @param {!number} pos position in the version string to be returned.
|
|||
|
|
* @return {!number} browser version.
|
|||
|
|
*/
|
|||
|
|
extractVersion: function(uastring, expr, pos) {
|
|||
|
|
var match = uastring.match(expr);
|
|||
|
|
return match && match.length >= pos && parseInt(match[pos], 10);
|
|||
|
|
},
|
|||
|
|
|
|||
|
|
/**
|
|||
|
|
* Browser detector.
|
|||
|
|
*
|
|||
|
|
* @return {object} result containing browser and version
|
|||
|
|
* properties.
|
|||
|
|
*/
|
|||
|
|
detectBrowser: function() {
|
|||
|
|
// Returned result object.
|
|||
|
|
var result = {};
|
|||
|
|
result.browser = null;
|
|||
|
|
result.version = null;
|
|||
|
|
|
|||
|
|
// Fail early if it's not a browser
|
|||
|
|
if (typeof window === 'undefined' || !window.navigator) {
|
|||
|
|
result.browser = 'Not a browser.';
|
|||
|
|
return result;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
// Firefox.
|
|||
|
|
if (navigator.mozGetUserMedia) {
|
|||
|
|
result.browser = 'firefox';
|
|||
|
|
result.version = this.extractVersion(navigator.userAgent,
|
|||
|
|
/Firefox\/(\d+)\./, 1);
|
|||
|
|
} else if (navigator.webkitGetUserMedia) {
|
|||
|
|
// Chrome, Chromium, Webview, Opera, all use the chrome shim for now
|
|||
|
|
if (window.webkitRTCPeerConnection) {
|
|||
|
|
result.browser = 'chrome';
|
|||
|
|
result.version = this.extractVersion(navigator.userAgent,
|
|||
|
|
/Chrom(e|ium)\/(\d+)\./, 2);
|
|||
|
|
} else { // Safari (in an unpublished version) or unknown webkit-based.
|
|||
|
|
if (navigator.userAgent.match(/Version\/(\d+).(\d+)/)) {
|
|||
|
|
result.browser = 'safari';
|
|||
|
|
result.version = this.extractVersion(navigator.userAgent,
|
|||
|
|
/AppleWebKit\/(\d+)\./, 1);
|
|||
|
|
} else { // unknown webkit-based browser.
|
|||
|
|
result.browser = 'Unsupported webkit-based browser ' +
|
|||
|
|
'with GUM support but no WebRTC support.';
|
|||
|
|
return result;
|
|||
|
|
}
|
|||
|
|
}
|
|||
|
|
} else if (navigator.mediaDevices &&
|
|||
|
|
navigator.userAgent.match(/Edge\/(\d+).(\d+)$/)) { // Edge.
|
|||
|
|
result.browser = 'edge';
|
|||
|
|
result.version = this.extractVersion(navigator.userAgent,
|
|||
|
|
/Edge\/(\d+).(\d+)$/, 2);
|
|||
|
|
} else if (navigator.mediaDevices &&
|
|||
|
|
navigator.userAgent.match(/AppleWebKit\/(\d+)\./)) {
|
|||
|
|
// Safari, with webkitGetUserMedia removed.
|
|||
|
|
result.browser = 'safari';
|
|||
|
|
result.version = this.extractVersion(navigator.userAgent,
|
|||
|
|
/AppleWebKit\/(\d+)\./, 1);
|
|||
|
|
} else { // Default fallthrough: not supported.
|
|||
|
|
result.browser = 'Not a supported browser.';
|
|||
|
|
return result;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
return result;
|
|||
|
|
},
|
|||
|
|
|
|||
|
|
// shimCreateObjectURL must be called before shimSourceObject to avoid loop.
|
|||
|
|
|
|||
|
|
shimCreateObjectURL: function() {
|
|||
|
|
if (!(typeof window === 'object' && window.HTMLMediaElement &&
|
|||
|
|
'srcObject' in window.HTMLMediaElement.prototype)) {
|
|||
|
|
// Only shim CreateObjectURL using srcObject if srcObject exists.
|
|||
|
|
return undefined;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
var nativeCreateObjectURL = URL.createObjectURL.bind(URL);
|
|||
|
|
var nativeRevokeObjectURL = URL.revokeObjectURL.bind(URL);
|
|||
|
|
var streams = new Map(), newId = 0;
|
|||
|
|
|
|||
|
|
URL.createObjectURL = function(stream) {
|
|||
|
|
if ('getTracks' in stream) {
|
|||
|
|
var url = 'polyblob:' + (++newId);
|
|||
|
|
streams.set(url, stream);
|
|||
|
|
console.log('URL.createObjectURL(stream) is deprecated! ' +
|
|||
|
|
'Use elem.srcObject = stream instead!');
|
|||
|
|
return url;
|
|||
|
|
}
|
|||
|
|
return nativeCreateObjectURL(stream);
|
|||
|
|
};
|
|||
|
|
URL.revokeObjectURL = function(url) {
|
|||
|
|
nativeRevokeObjectURL(url);
|
|||
|
|
streams.delete(url);
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
var dsc = Object.getOwnPropertyDescriptor(window.HTMLMediaElement.prototype,
|
|||
|
|
'src');
|
|||
|
|
Object.defineProperty(window.HTMLMediaElement.prototype, 'src', {
|
|||
|
|
get: function() {
|
|||
|
|
return dsc.get.apply(this);
|
|||
|
|
},
|
|||
|
|
set: function(url) {
|
|||
|
|
this.srcObject = streams.get(url) || null;
|
|||
|
|
return dsc.set.apply(this, [url]);
|
|||
|
|
}
|
|||
|
|
});
|
|||
|
|
|
|||
|
|
var nativeSetAttribute = HTMLMediaElement.prototype.setAttribute;
|
|||
|
|
HTMLMediaElement.prototype.setAttribute = function() {
|
|||
|
|
if (arguments.length === 2 &&
|
|||
|
|
('' + arguments[0]).toLowerCase() === 'src') {
|
|||
|
|
this.srcObject = streams.get(arguments[1]) || null;
|
|||
|
|
}
|
|||
|
|
return nativeSetAttribute.apply(this, arguments);
|
|||
|
|
};
|
|||
|
|
}
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
// Export.
|
|||
|
|
module.exports = {
|
|||
|
|
log: utils.log,
|
|||
|
|
disableLog: utils.disableLog,
|
|||
|
|
browserDetails: utils.detectBrowser(),
|
|||
|
|
extractVersion: utils.extractVersion,
|
|||
|
|
shimCreateObjectURL: utils.shimCreateObjectURL,
|
|||
|
|
detectBrowser: utils.detectBrowser.bind(utils)
|
|||
|
|
};
|
|||
|
|
|
|||
|
|
},{}]},{},[2])(2)
|
|||
|
|
});
|