+++ /dev/null
-(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){
- /* eslint-env node */
-'use strict';
-
-// SDP helpers.
-var SDPUtils = {};
-
-// Generate an alphanumeric identifier for cname or mids.
-// TODO: use UUIDs instead? https://gist.github.com/jed/982883
-SDPUtils.generateIdentifier = function() {
- return Math.random().toString(36).substr(2, 10);
-};
-
-// The RTCP CNAME used by all peerconnections from the same JS.
-SDPUtils.localCName = SDPUtils.generateIdentifier();
-
-// Splits SDP into lines, dealing with both CRLF and LF.
-SDPUtils.splitLines = function(blob) {
- return blob.trim().split('\n').map(function(line) {
- return line.trim();
- });
-};
-// Splits SDP into sessionpart and mediasections. Ensures CRLF.
-SDPUtils.splitSections = function(blob) {
- var parts = blob.split('\nm=');
- return parts.map(function(part, index) {
- return (index > 0 ? 'm=' + part : part).trim() + '\r\n';
- });
-};
-
-// Returns lines that start with a certain prefix.
-SDPUtils.matchPrefix = function(blob, prefix) {
- return SDPUtils.splitLines(blob).filter(function(line) {
- return line.indexOf(prefix) === 0;
- });
-};
-
-// Parses an ICE candidate line. Sample input:
-// candidate:702786350 2 udp 41819902 8.8.8.8 60769 typ relay raddr 8.8.8.8
-// rport 55996"
-SDPUtils.parseCandidate = function(line) {
- var parts;
- // Parse both variants.
- if (line.indexOf('a=candidate:') === 0) {
- parts = line.substring(12).split(' ');
- } else {
- parts = line.substring(10).split(' ');
- }
-
- var candidate = {
- foundation: parts[0],
- component: parseInt(parts[1], 10),
- protocol: parts[2].toLowerCase(),
- priority: parseInt(parts[3], 10),
- ip: parts[4],
- port: parseInt(parts[5], 10),
- // skip parts[6] == 'typ'
- type: parts[7]
- };
-
- for (var i = 8; i < parts.length; i += 2) {
- switch (parts[i]) {
- case 'raddr':
- candidate.relatedAddress = parts[i + 1];
- break;
- case 'rport':
- candidate.relatedPort = parseInt(parts[i + 1], 10);
- break;
- case 'tcptype':
- candidate.tcpType = parts[i + 1];
- break;
- default: // extension handling, in particular ufrag
- candidate[parts[i]] = parts[i + 1];
- break;
- }
- }
- return candidate;
-};
-
-// Translates a candidate object into SDP candidate attribute.
-SDPUtils.writeCandidate = function(candidate) {
- var sdp = [];
- sdp.push(candidate.foundation);
- sdp.push(candidate.component);
- sdp.push(candidate.protocol.toUpperCase());
- sdp.push(candidate.priority);
- sdp.push(candidate.ip);
- sdp.push(candidate.port);
-
- var type = candidate.type;
- sdp.push('typ');
- sdp.push(type);
- if (type !== 'host' && candidate.relatedAddress &&
- candidate.relatedPort) {
- sdp.push('raddr');
- sdp.push(candidate.relatedAddress); // was: relAddr
- sdp.push('rport');
- sdp.push(candidate.relatedPort); // was: relPort
- }
- if (candidate.tcpType && candidate.protocol.toLowerCase() === 'tcp') {
- sdp.push('tcptype');
- sdp.push(candidate.tcpType);
- }
- if (candidate.ufrag) {
- sdp.push('ufrag');
- sdp.push(candidate.ufrag);
- }
- return 'candidate:' + sdp.join(' ');
-};
-
-// Parses an ice-options line, returns an array of option tags.
-// a=ice-options:foo bar
-SDPUtils.parseIceOptions = function(line) {
- return line.substr(14).split(' ');
-}
-
-// Parses an rtpmap line, returns RTCRtpCoddecParameters. Sample input:
-// a=rtpmap:111 opus/48000/2
-SDPUtils.parseRtpMap = function(line) {
- var parts = line.substr(9).split(' ');
- var parsed = {
- payloadType: parseInt(parts.shift(), 10) // was: id
- };
-
- parts = parts[0].split('/');
-
- parsed.name = parts[0];
- parsed.clockRate = parseInt(parts[1], 10); // was: clockrate
- // was: channels
- parsed.numChannels = parts.length === 3 ? parseInt(parts[2], 10) : 1;
- return parsed;
-};
-
-// Generate an a=rtpmap line from RTCRtpCodecCapability or
-// RTCRtpCodecParameters.
-SDPUtils.writeRtpMap = function(codec) {
- var pt = codec.payloadType;
- if (codec.preferredPayloadType !== undefined) {
- pt = codec.preferredPayloadType;
- }
- return 'a=rtpmap:' + pt + ' ' + codec.name + '/' + codec.clockRate +
- (codec.numChannels !== 1 ? '/' + codec.numChannels : '') + '\r\n';
-};
-
-// Parses an a=extmap line (headerextension from RFC 5285). Sample input:
-// a=extmap:2 urn:ietf:params:rtp-hdrext:toffset
-// a=extmap:2/sendonly urn:ietf:params:rtp-hdrext:toffset
-SDPUtils.parseExtmap = function(line) {
- var parts = line.substr(9).split(' ');
- return {
- id: parseInt(parts[0], 10),
- direction: parts[0].indexOf('/') > 0 ? parts[0].split('/')[1] : 'sendrecv',
- uri: parts[1]
- };
-};
-
-// Generates a=extmap line from RTCRtpHeaderExtensionParameters or
-// RTCRtpHeaderExtension.
-SDPUtils.writeExtmap = function(headerExtension) {
- return 'a=extmap:' + (headerExtension.id || headerExtension.preferredId) +
- (headerExtension.direction && headerExtension.direction !== 'sendrecv'
- ? '/' + headerExtension.direction
- : '') +
- ' ' + headerExtension.uri + '\r\n';
-};
-
-// Parses an ftmp line, returns dictionary. Sample input:
-// a=fmtp:96 vbr=on;cng=on
-// Also deals with vbr=on; cng=on
-SDPUtils.parseFmtp = function(line) {
- var parsed = {};
- var kv;
- var parts = line.substr(line.indexOf(' ') + 1).split(';');
- for (var j = 0; j < parts.length; j++) {
- kv = parts[j].trim().split('=');
- parsed[kv[0].trim()] = kv[1];
- }
- return parsed;
-};
-
-// Generates an a=ftmp line from RTCRtpCodecCapability or RTCRtpCodecParameters.
-SDPUtils.writeFmtp = function(codec) {
- var line = '';
- var pt = codec.payloadType;
- if (codec.preferredPayloadType !== undefined) {
- pt = codec.preferredPayloadType;
- }
- if (codec.parameters && Object.keys(codec.parameters).length) {
- var params = [];
- Object.keys(codec.parameters).forEach(function(param) {
- params.push(param + '=' + codec.parameters[param]);
- });
- line += 'a=fmtp:' + pt + ' ' + params.join(';') + '\r\n';
- }
- return line;
-};
-
-// Parses an rtcp-fb line, returns RTCPRtcpFeedback object. Sample input:
-// a=rtcp-fb:98 nack rpsi
-SDPUtils.parseRtcpFb = function(line) {
- var parts = line.substr(line.indexOf(' ') + 1).split(' ');
- return {
- type: parts.shift(),
- parameter: parts.join(' ')
- };
-};
-// Generate a=rtcp-fb lines from RTCRtpCodecCapability or RTCRtpCodecParameters.
-SDPUtils.writeRtcpFb = function(codec) {
- var lines = '';
- var pt = codec.payloadType;
- if (codec.preferredPayloadType !== undefined) {
- pt = codec.preferredPayloadType;
- }
- if (codec.rtcpFeedback && codec.rtcpFeedback.length) {
- // FIXME: special handling for trr-int?
- codec.rtcpFeedback.forEach(function(fb) {
- lines += 'a=rtcp-fb:' + pt + ' ' + fb.type +
- (fb.parameter && fb.parameter.length ? ' ' + fb.parameter : '') +
- '\r\n';
- });
- }
- return lines;
-};
-
-// Parses an RFC 5576 ssrc media attribute. Sample input:
-// a=ssrc:3735928559 cname:something
-SDPUtils.parseSsrcMedia = function(line) {
- var sp = line.indexOf(' ');
- var parts = {
- ssrc: parseInt(line.substr(7, sp - 7), 10)
- };
- var colon = line.indexOf(':', sp);
- if (colon > -1) {
- parts.attribute = line.substr(sp + 1, colon - sp - 1);
- parts.value = line.substr(colon + 1);
- } else {
- parts.attribute = line.substr(sp + 1);
- }
- return parts;
-};
-
-// Extracts the MID (RFC 5888) from a media section.
-// returns the MID or undefined if no mid line was found.
-SDPUtils.getMid = function(mediaSection) {
- var mid = SDPUtils.matchPrefix(mediaSection, 'a=mid:')[0];
- if (mid) {
- return mid.substr(6);
- }
-}
-
-SDPUtils.parseFingerprint = function(line) {
- var parts = line.substr(14).split(' ');
- return {
- algorithm: parts[0].toLowerCase(), // algorithm is case-sensitive in Edge.
- value: parts[1]
- };
-};
-
-// Extracts DTLS parameters from SDP media section or sessionpart.
-// FIXME: for consistency with other functions this should only
-// get the fingerprint line as input. See also getIceParameters.
-SDPUtils.getDtlsParameters = function(mediaSection, sessionpart) {
- var lines = SDPUtils.matchPrefix(mediaSection + sessionpart,
- 'a=fingerprint:');
- // Note: a=setup line is ignored since we use the 'auto' role.
- // Note2: 'algorithm' is not case sensitive except in Edge.
- return {
- role: 'auto',
- fingerprints: lines.map(SDPUtils.parseFingerprint)
- };
-};
-
-// Serializes DTLS parameters to SDP.
-SDPUtils.writeDtlsParameters = function(params, setupType) {
- var sdp = 'a=setup:' + setupType + '\r\n';
- params.fingerprints.forEach(function(fp) {
- sdp += 'a=fingerprint:' + fp.algorithm + ' ' + fp.value + '\r\n';
- });
- return sdp;
-};
-// Parses ICE information from SDP media section or sessionpart.
-// FIXME: for consistency with other functions this should only
-// get the ice-ufrag and ice-pwd lines as input.
-SDPUtils.getIceParameters = function(mediaSection, sessionpart) {
- var lines = SDPUtils.splitLines(mediaSection);
- // Search in session part, too.
- lines = lines.concat(SDPUtils.splitLines(sessionpart));
- var iceParameters = {
- usernameFragment: lines.filter(function(line) {
- return line.indexOf('a=ice-ufrag:') === 0;
- })[0].substr(12),
- password: lines.filter(function(line) {
- return line.indexOf('a=ice-pwd:') === 0;
- })[0].substr(10)
- };
- return iceParameters;
-};
-
-// Serializes ICE parameters to SDP.
-SDPUtils.writeIceParameters = function(params) {
- return 'a=ice-ufrag:' + params.usernameFragment + '\r\n' +
- 'a=ice-pwd:' + params.password + '\r\n';
-};
-
-// Parses the SDP media section and returns RTCRtpParameters.
-SDPUtils.parseRtpParameters = function(mediaSection) {
- var description = {
- codecs: [],
- headerExtensions: [],
- fecMechanisms: [],
- rtcp: []
- };
- var lines = SDPUtils.splitLines(mediaSection);
- var mline = lines[0].split(' ');
- for (var i = 3; i < mline.length; i++) { // find all codecs from mline[3..]
- var pt = mline[i];
- var rtpmapline = SDPUtils.matchPrefix(
- mediaSection, 'a=rtpmap:' + pt + ' ')[0];
- if (rtpmapline) {
- var codec = SDPUtils.parseRtpMap(rtpmapline);
- var fmtps = SDPUtils.matchPrefix(
- mediaSection, 'a=fmtp:' + pt + ' ');
- // Only the first a=fmtp:<pt> is considered.
- codec.parameters = fmtps.length ? SDPUtils.parseFmtp(fmtps[0]) : {};
- codec.rtcpFeedback = SDPUtils.matchPrefix(
- mediaSection, 'a=rtcp-fb:' + pt + ' ')
- .map(SDPUtils.parseRtcpFb);
- description.codecs.push(codec);
- // parse FEC mechanisms from rtpmap lines.
- switch (codec.name.toUpperCase()) {
- case 'RED':
- case 'ULPFEC':
- description.fecMechanisms.push(codec.name.toUpperCase());
- break;
- default: // only RED and ULPFEC are recognized as FEC mechanisms.
- break;
- }
- }
- }
- SDPUtils.matchPrefix(mediaSection, 'a=extmap:').forEach(function(line) {
- description.headerExtensions.push(SDPUtils.parseExtmap(line));
- });
- // FIXME: parse rtcp.
- 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) {
- // use formula from JSEP to convert b=AS to TIAS value.
- bandwidth = parseInt(bandwidth[0].substr(5), 10) * 1000 * 0.95
- - (50 * 40 * 8);
- } else {
- bandwidth = undefined;
- }
- 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 attrŅbute.
- // 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 and 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]};
- }
-};
-
-// Generate a session ID for SDP.
-// https://tools.ietf.org/html/draft-ietf-rtcweb-jsep-20#section-5.2.1
-// recommends using a cryptographically random +ve 64-bit value
-// but right now this should be acceptable and within the right range
-SDPUtils.generateSessionId = function() {
- return Math.random().toString().substr(2, 21);
-};
-
-// Write boilder plate for start of SDP
-// sessId argument is optional - if not supplied it will
-// be generated randomly
-SDPUtils.writeSessionBoilerplate = function(sessId) {
- var sessionId;
- if (sessId) {
- sessionId = sessId;
- } else {
- sessionId = SDPUtils.generateSessionId();
- }
- // FIXME: sess-id should be an NTP timestamp.
- return 'v=0\r\n' +
- 'o=thisisadapterortc ' + sessionId + ' 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.direction) {
- sdp += 'a=' + transceiver.direction + '\r\n';
- } else 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){
-(function (global){
-/*
- * 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 adapterFactory = require('./adapter_factory.js');
-module.exports = adapterFactory({window: global.window});
-
-}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
-},{"./adapter_factory.js":3}],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';
-
-// Shimming starts here.
-module.exports = function(dependencies) {
- var window = dependencies && dependencies.window;
-
- // Utils.
- var utils = require('./utils');
- var logging = utils.log;
- var browserDetails = utils.detectBrowser(window);
-
- // Export to the adapter global object visible in the browser.
- var adapter = {
- browserDetails: browserDetails,
- extractVersion: utils.extractVersion,
- disableLog: utils.disableLog,
- disableWarnings: utils.disableWarnings
- };
-
- // 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 adapter;
- }
- logging('adapter.js shimming chrome.');
- // Export to the adapter global object visible in the browser.
- adapter.browserShim = chromeShim;
-
- chromeShim.shimGetUserMedia(window);
- chromeShim.shimMediaStream(window);
- utils.shimCreateObjectURL(window);
- chromeShim.shimSourceObject(window);
- chromeShim.shimPeerConnection(window);
- chromeShim.shimOnTrack(window);
- chromeShim.shimGetSendersWithDtmf(window);
- break;
- case 'firefox':
- if (!firefoxShim || !firefoxShim.shimPeerConnection) {
- logging('Firefox shim is not included in this adapter release.');
- return adapter;
- }
- logging('adapter.js shimming firefox.');
- // Export to the adapter global object visible in the browser.
- adapter.browserShim = firefoxShim;
-
- firefoxShim.shimGetUserMedia(window);
- utils.shimCreateObjectURL(window);
- firefoxShim.shimSourceObject(window);
- firefoxShim.shimPeerConnection(window);
- firefoxShim.shimOnTrack(window);
- break;
- case 'edge':
- if (!edgeShim || !edgeShim.shimPeerConnection) {
- logging('MS edge shim is not included in this adapter release.');
- return adapter;
- }
- logging('adapter.js shimming edge.');
- // Export to the adapter global object visible in the browser.
- adapter.browserShim = edgeShim;
-
- edgeShim.shimGetUserMedia(window);
- utils.shimCreateObjectURL(window);
- edgeShim.shimPeerConnection(window);
- edgeShim.shimReplaceTrack(window);
- break;
- case 'safari':
- if (!safariShim) {
- logging('Safari shim is not included in this adapter release.');
- return adapter;
- }
- logging('adapter.js shimming safari.');
- // Export to the adapter global object visible in the browser.
- adapter.browserShim = safariShim;
- // shim window.URL.createObjectURL Safari (technical preview)
- utils.shimCreateObjectURL(window);
- safariShim.shimRTCIceServerUrls(window);
- safariShim.shimCallbacksAPI(window);
- safariShim.shimLocalStreamsAPI(window);
- safariShim.shimRemoteStreamsAPI(window);
- safariShim.shimGetUserMedia(window);
- break;
- default:
- logging('Unsupported browser!');
- break;
- }
-
- return adapter;
-};
-
-},{"./chrome/chrome_shim":4,"./edge/edge_shim":6,"./firefox/firefox_shim":9,"./safari/safari_shim":11,"./utils":12}],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 utils = require('../utils.js');
-var logging = utils.log;
-
-var chromeShim = {
- shimMediaStream: function(window) {
- window.MediaStream = window.MediaStream || window.webkitMediaStream;
- },
-
- shimOnTrack: function(window) {
- 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 receiver;
- if (window.RTCPeerConnection.prototype.getReceivers) {
- receiver = self.getReceivers().find(function(r) {
- return r.track.id === te.track.id;
- });
- } else {
- receiver = {track: te.track};
- }
-
- var event = new Event('track');
- event.track = te.track;
- event.receiver = receiver;
- event.streams = [e.stream];
- self.dispatchEvent(event);
- });
- e.stream.getTracks().forEach(function(track) {
- var receiver;
- if (window.RTCPeerConnection.prototype.getReceivers) {
- receiver = self.getReceivers().find(function(r) {
- return r.track.id === track.id;
- });
- } else {
- receiver = {track: track};
- }
- var event = new Event('track');
- event.track = track;
- event.receiver = receiver;
- event.streams = [e.stream];
- this.dispatchEvent(event);
- }.bind(this));
- }.bind(this));
- }
- });
- }
- },
-
- shimGetSendersWithDtmf: function(window) {
- if (typeof window === 'object' && window.RTCPeerConnection &&
- !('getSenders' in window.RTCPeerConnection.prototype) &&
- 'createDTMFSender' in window.RTCPeerConnection.prototype) {
- window.RTCPeerConnection.prototype.getSenders = function() {
- return this._senders || [];
- };
- var origAddStream = window.RTCPeerConnection.prototype.addStream;
- var origRemoveStream = window.RTCPeerConnection.prototype.removeStream;
-
- if (!window.RTCPeerConnection.prototype.addTrack) {
- window.RTCPeerConnection.prototype.addTrack = function(track, stream) {
- var pc = this;
- if (pc.signalingState === 'closed') {
- throw new DOMException(
- 'The RTCPeerConnection\'s signalingState is \'closed\'.',
- 'InvalidStateError');
- }
- var streams = [].slice.call(arguments, 1);
- if (streams.length !== 1 ||
- !streams[0].getTracks().find(function(t) {
- return t === track;
- })) {
- // this is not fully correct but all we can manage without
- // [[associated MediaStreams]] internal slot.
- throw new DOMException(
- 'The adapter.js addTrack polyfill only supports a single ' +
- ' stream which is associated with the specified track.',
- 'NotSupportedError');
- }
-
- pc._senders = pc._senders || [];
- var alreadyExists = pc._senders.find(function(t) {
- return t.track === track;
- });
- if (alreadyExists) {
- throw new DOMException('Track already exists.',
- 'InvalidAccessError');
- }
-
- pc._streams = pc._streams || {};
- var oldStream = pc._streams[stream.id];
- if (oldStream) {
- oldStream.addTrack(track);
- pc.removeStream(oldStream);
- pc.addStream(oldStream);
- } else {
- var newStream = new window.MediaStream([track]);
- pc._streams[stream.id] = newStream;
- pc.addStream(newStream);
- }
-
- var sender = {
- track: track,
- get dtmf() {
- if (this._dtmf === undefined) {
- if (track.kind === 'audio') {
- this._dtmf = pc.createDTMFSender(track);
- } else {
- this._dtmf = null;
- }
- }
- return this._dtmf;
- }
- };
- pc._senders.push(sender);
- return sender;
- };
- }
- window.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;
- }
- });
- });
- };
-
- window.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
- }
- });
- };
- } else if (typeof window === 'object' && window.RTCPeerConnection &&
- 'getSenders' in window.RTCPeerConnection.prototype &&
- 'createDTMFSender' in window.RTCPeerConnection.prototype &&
- window.RTCRtpSender &&
- !('dtmf' in window.RTCRtpSender.prototype)) {
- var origGetSenders = window.RTCPeerConnection.prototype.getSenders;
- window.RTCPeerConnection.prototype.getSenders = function() {
- var pc = this;
- var senders = origGetSenders.apply(pc, []);
- senders.forEach(function(sender) {
- sender._pc = pc;
- });
- return senders;
- };
-
- Object.defineProperty(window.RTCRtpSender.prototype, 'dtmf', {
- get: function() {
- if (this._dtmf === undefined) {
- if (this.track.kind === 'audio') {
- this._dtmf = this._pc.createDTMFSender(this.track);
- } else {
- this._dtmf = null;
- }
- }
- return this._dtmf;
- },
- });
- }
- },
-
- shimSourceObject: function(window) {
- var URL = window && window.URL;
-
- 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(window) {
- var browserDetails = utils.detectBrowser(window);
-
- // 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 window.webkitRTCPeerConnection(pcConfig, pcConstraints);
- };
- window.RTCPeerConnection.prototype =
- window.webkitRTCPeerConnection.prototype;
- // wrap static methods. Currently just generateCertificate.
- if (window.webkitRTCPeerConnection.generateCertificate) {
- Object.defineProperty(window.RTCPeerConnection, 'generateCertificate', {
- get: function() {
- return window.webkitRTCPeerConnection.generateCertificate;
- }
- });
- }
- } else {
- // migrate from non-spec RTCIceServer.url to RTCIceServer.urls
- var OrigPeerConnection = window.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 = window.RTCPeerConnection.prototype.getStats;
- window.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 = window.RTCPeerConnection.prototype[method];
- window.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 = window.RTCPeerConnection.prototype[method];
- window.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 = window.RTCPeerConnection.prototype[method];
- window.RTCPeerConnection.prototype[method] = function() {
- arguments[0] = new ((method === 'addIceCandidate') ?
- window.RTCIceCandidate :
- window.RTCSessionDescription)(arguments[0]);
- return nativeMethod.apply(this, arguments);
- };
- });
-
- // support for addIceCandidate(null or undefined)
- var nativeAddIceCandidate =
- window.RTCPeerConnection.prototype.addIceCandidate;
- window.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":12,"./getusermedia":5}],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 utils = require('../utils.js');
-var logging = utils.log;
-
-// Expose public methods.
-module.exports = function(window) {
- var browserDetails = utils.detectBrowser(window);
- var navigator = window && window.navigator;
-
- 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 && typeof constraints.audio === 'object') {
- var remap = function(obj, a, b) {
- if (a in obj && !(b in obj)) {
- obj[b] = obj[a];
- delete obj[a];
- }
- };
- constraints = JSON.parse(JSON.stringify(constraints));
- remap(constraints.audio, 'autoGainControl', 'googAutoGainControl');
- remap(constraints.audio, 'noiseSuppression', 'googNoiseSuppression');
- 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 matches;
- if (face.exact === 'environment' || face.ideal === 'environment') {
- matches = ['back', 'rear'];
- } else if (face.exact === 'user' || face.ideal === 'user') {
- matches = ['front'];
- }
- if (matches) {
- // Look for matches in label, or use last cam for back (typical).
- return navigator.mediaDevices.enumerateDevices()
- .then(function(devices) {
- devices = devices.filter(function(d) {
- return d.kind === 'videoinput';
- });
- var dev = devices.find(function(d) {
- return matches.some(function(match) {
- return d.label.toLowerCase().indexOf(match) !== -1;
- });
- });
- if (!dev && devices.length && matches.indexOf('back') !== -1) {
- dev = devices[devices.length - 1]; // more likely the back cam
- }
- 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',
- InvalidStateError: 'NotReadableError',
- DevicesNotFoundError: 'NotFoundError',
- ConstraintNotSatisfiedError: 'OverconstrainedError',
- TrackStartError: 'NotReadableError',
- MediaDeviceFailedDueToShutdown: 'NotReadableError',
- MediaDeviceKillSwitchOn: 'NotReadableError'
- }[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 window.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":12}],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';
-
-var utils = require('../utils');
-var shimRTCPeerConnection = require('./rtcpeerconnection_shim');
-
-module.exports = {
- shimGetUserMedia: require('./getusermedia'),
- shimPeerConnection: function(window) {
- var browserDetails = utils.detectBrowser(window);
-
- 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(
- window.MediaStreamTrack.prototype, 'enabled');
- Object.defineProperty(window.MediaStreamTrack.prototype, 'enabled', {
- set: function(value) {
- origMSTEnabled.set.call(this, value);
- var ev = new Event('enabled');
- ev.enabled = value;
- this.dispatchEvent(ev);
- }
- });
- }
- }
- window.RTCPeerConnection =
- shimRTCPeerConnection(window, browserDetails.version);
- },
- shimReplaceTrack: function(window) {
- // ORTC has replaceTrack -- https://github.com/w3c/ortc/issues/614
- if (window.RTCRtpSender &&
- !('replaceTrack' in window.RTCRtpSender.prototype)) {
- window.RTCRtpSender.prototype.replaceTrack =
- window.RTCRtpSender.prototype.setTrack;
- }
- }
-};
-
-},{"../utils":12,"./getusermedia":7,"./rtcpeerconnection_shim":8}],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';
-
-// Expose public methods.
-module.exports = function(window) {
- var navigator = window && window.navigator;
-
- 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));
- });
- };
-};
-
-},{}],8:[function(require,module,exports){
-/*
- * Copyright (c) 2017 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');
-
-// 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, edgeVersion) {
- 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 && edgeVersion >= 14393;
- });
-
- delete server.url;
- server.urls = isString ? urls[0] : urls;
- return !!urls.length;
- }
- return false;
- });
-}
-
-// Determines the intersection of local and remote capabilities.
-function getCommonCapabilities(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;
-}
-
-// is action=setLocalDescription with type allowed in signalingState
-function isActionAllowedInSignalingState(action, type, signalingState) {
- return {
- offer: {
- setLocalDescription: ['stable', 'have-local-offer'],
- setRemoteDescription: ['stable', 'have-remote-offer']
- },
- answer: {
- setLocalDescription: ['have-remote-offer', 'have-local-pranswer'],
- setRemoteDescription: ['have-local-offer', 'have-remote-pranswer']
- }
- }[type][action].indexOf(signalingState) !== -1;
-}
-
-module.exports = function(window, edgeVersion) {
- var RTCPeerConnection = function(config) {
- var self = this;
-
- var _eventTarget = document.createDocumentFragment();
- ['addEventListener', 'removeEventListener', 'dispatchEvent']
- .forEach(function(method) {
- self[method] = _eventTarget[method].bind(_eventTarget);
- });
-
- this.needNegotiation = false;
-
- 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 window.RTCSessionDescription({
- type: '',
- sdp: ''
- });
- this.remoteDescription = new window.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,
- edgeVersion);
- }
- 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 = [];
-
- this._sdpSessionId = SDPUtils.generateSessionId();
- };
-
- RTCPeerConnection.prototype._emitGatheringStateChange = function() {
- var event = new Event('icegatheringstatechange');
- this.dispatchEvent(event);
- if (this.onicegatheringstatechange !== null) {
- this.onicegatheringstatechange(event);
- }
- };
-
- 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 = [];
- };
-
- RTCPeerConnection.prototype.getConfiguration = function() {
- return this._config;
- };
-
- // internal helper to create a transceiver object.
- // (whih is not yet the same as the WebRTC 1.0 transceiver)
- RTCPeerConnection.prototype._createTransceiver = function(kind) {
- var hasBundleTransport = this.transceivers.length > 0;
- var transceiver = {
- track: null,
- iceGatherer: null,
- iceTransport: null,
- dtlsTransport: null,
- localCapabilities: null,
- remoteCapabilities: null,
- rtpSender: null,
- rtpReceiver: null,
- kind: kind,
- mid: null,
- sendEncodingParameters: null,
- recvEncodingParameters: null,
- stream: null,
- wantReceive: true
- };
- if (this.usingBundle && hasBundleTransport) {
- transceiver.iceTransport = this.transceivers[0].iceTransport;
- transceiver.dtlsTransport = this.transceivers[0].dtlsTransport;
- } else {
- var transports = this._createIceAndDtlsTransports();
- transceiver.iceTransport = transports.iceTransport;
- transceiver.dtlsTransport = transports.dtlsTransport;
- }
- this.transceivers.push(transceiver);
- return transceiver;
- };
-
- RTCPeerConnection.prototype.addTrack = function(track, stream) {
- var transceiver;
- for (var i = 0; i < this.transceivers.length; i++) {
- if (!this.transceivers[i].track &&
- this.transceivers[i].kind === track.kind) {
- transceiver = this.transceivers[i];
- }
- }
- if (!transceiver) {
- transceiver = this._createTransceiver(track.kind);
- }
-
- transceiver.track = track;
- transceiver.stream = stream;
- transceiver.rtpSender = new window.RTCRtpSender(track,
- transceiver.dtlsTransport);
-
- this._maybeFireNegotiationNeeded();
- return transceiver.rtpSender;
- };
-
- RTCPeerConnection.prototype.addStream = function(stream) {
- var self = this;
- if (edgeVersion >= 15025) {
- this.localStreams.push(stream);
- stream.getTracks().forEach(function(track) {
- self.addTrack(track, 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;
- });
- });
- clonedStream.getTracks().forEach(function(track) {
- self.addTrack(track, clonedStream);
- });
- this.localStreams.push(clonedStream);
- }
- this._maybeFireNegotiationNeeded();
- };
-
- RTCPeerConnection.prototype.removeStream = function(stream) {
- var idx = this.localStreams.indexOf(stream);
- if (idx > -1) {
- this.localStreams.splice(idx, 1);
- this._maybeFireNegotiationNeeded();
- }
- };
-
- RTCPeerConnection.prototype.getSenders = function() {
- return this.transceivers.filter(function(transceiver) {
- return !!transceiver.rtpSender;
- })
- .map(function(transceiver) {
- return transceiver.rtpSender;
- });
- };
-
- RTCPeerConnection.prototype.getReceivers = function() {
- return this.transceivers.filter(function(transceiver) {
- return !!transceiver.rtpReceiver;
- })
- .map(function(transceiver) {
- return transceiver.rtpReceiver;
- });
- };
-
- // Create ICE gatherer and hook it up.
- RTCPeerConnection.prototype._createIceGatherer = function(mid,
- sdpMLineIndex) {
- var self = this;
- var iceGatherer = new window.RTCIceGatherer(self.iceOptions);
- 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 RTCIceCandidateCompleteâĨ
- 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 = 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;
- }
- };
- return iceGatherer;
- };
-
- // Create ICE transport and DTLS transport.
- RTCPeerConnection.prototype._createIceAndDtlsTransports = function() {
- var self = this;
- var iceTransport = new window.RTCIceTransport(null);
- iceTransport.onicestatechange = function() {
- self._updateConnectionState();
- };
-
- var dtlsTransport = new window.RTCDtlsTransport(iceTransport);
- dtlsTransport.ondtlsstatechange = function() {
- self._updateConnectionState();
- };
- dtlsTransport.onerror = function() {
- // onerror does not set state to failed by itself.
- Object.defineProperty(dtlsTransport, 'state',
- {value: 'failed', writable: true});
- self._updateConnectionState();
- };
-
- return {
- iceTransport: iceTransport,
- dtlsTransport: dtlsTransport
- };
- };
-
- // Destroy ICE gatherer, ICE transport and DTLS transport.
- // Without triggering the callbacks.
- 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.
- RTCPeerConnection.prototype._transceive = function(transceiver,
- send, recv) {
- var params = 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
- && edgeVersion < 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);
- }
- };
-
- RTCPeerConnection.prototype.setLocalDescription = function(description) {
- var self = this;
-
- if (!isActionAllowedInSignalingState('setLocalDescription',
- description.type, this.signalingState)) {
- var e = new Error('Can not set local ' + description.type +
- ' in state ' + this.signalingState);
- e.name = 'InvalidStateError';
- if (arguments.length > 2 && typeof arguments[2] === 'function') {
- window.setTimeout(arguments[2], 0, e);
- }
- return Promise.reject(e);
- }
-
- 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 = SDPUtils.isRejected(mediaSection);
-
- 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 = 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;
- };
-
- RTCPeerConnection.prototype.setRemoteDescription = function(description) {
- var self = this;
-
- if (!isActionAllowedInSignalingState('setRemoteDescription',
- description.type, this.signalingState)) {
- var e = new Error('Can not set remote ' + description.type +
- ' in state ' + this.signalingState);
- e.name = 'InvalidStateError';
- if (arguments.length > 2 && typeof arguments[2] === 'function') {
- window.setTimeout(arguments[2], 0, e);
- }
- return Promise.reject(e);
- }
-
- 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;
- this.usingBundle = usingBundle;
- 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 kind = SDPUtils.getKind(mediaSection);
- var rejected = SDPUtils.isRejected(mediaSection);
- var protocol = lines[0].substr(2).split(' ')[2];
-
- var direction = SDPUtils.getDirection(mediaSection, sessionpart);
- var remoteMsid = SDPUtils.parseMsid(mediaSection);
-
- var mid = SDPUtils.getMid(mediaSection) || SDPUtils.generateIdentifier();
-
- // Reject datachannels which are not implemented yet.
- if (kind === 'application' && protocol === 'DTLS/SCTP') {
- self.transceivers[sdpMLineIndex] = {
- mid: mid,
- isDatachannel: true
- };
- return;
- }
-
- var transceiver;
- var iceGatherer;
- var iceTransport;
- var dtlsTransport;
- 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' || cand.component === 1;
- });
-
- // Check if we can use BUNDLE and dispose transports.
- if ((description.type === 'offer' || description.type === 'answer') &&
- !rejected && usingBundle && sdpMLineIndex > 0 &&
- self.transceivers[sdpMLineIndex]) {
- 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;
- if (self.transceivers[sdpMLineIndex].rtpSender) {
- self.transceivers[sdpMLineIndex].rtpSender.setTransport(
- self.transceivers[0].dtlsTransport);
- }
- if (self.transceivers[sdpMLineIndex].rtpReceiver) {
- self.transceivers[sdpMLineIndex].rtpReceiver.setTransport(
- self.transceivers[0].dtlsTransport);
- }
- }
- if (description.type === 'offer' && !rejected) {
- transceiver = self.transceivers[sdpMLineIndex] ||
- self._createTransceiver(kind);
- transceiver.mid = mid;
-
- if (!transceiver.iceGatherer) {
- transceiver.iceGatherer = usingBundle && sdpMLineIndex > 0 ?
- self.transceivers[0].iceGatherer :
- self._createIceGatherer(mid, sdpMLineIndex);
- }
-
- if (isComplete && (!usingBundle || sdpMLineIndex === 0)) {
- transceiver.iceTransport.setRemoteCandidates(cands);
- }
-
- localCapabilities = window.RTCRtpReceiver.getCapabilities(kind);
-
- // filter RTX until additional stuff needed for RTX is implemented
- // in adapter.js
- if (edgeVersion < 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 window.RTCRtpReceiver(transceiver.dtlsTransport,
- kind);
-
- track = rtpReceiver.track;
- // FIXME: does not work with Plan B.
- if (remoteMsid) {
- if (!streams[remoteMsid.stream]) {
- streams[remoteMsid.stream] = new window.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 window.MediaStream();
- }
- streams.default.addTrack(track);
- receiverList.push([track, rtpReceiver, streams.default]);
- }
- }
-
- transceiver.localCapabilities = localCapabilities;
- transceiver.remoteCapabilities = remoteCapabilities;
- transceiver.rtpReceiver = rtpReceiver;
- transceiver.rtcpParameters = rtcpParameters;
- transceiver.sendEncodingParameters = sendEncodingParameters;
- transceiver.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) {
- transceiver = self.transceivers[sdpMLineIndex];
- iceGatherer = transceiver.iceGatherer;
- iceTransport = transceiver.iceTransport;
- dtlsTransport = transceiver.dtlsTransport;
- 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;
- if (remoteMsid) {
- if (!streams[remoteMsid.stream]) {
- streams[remoteMsid.stream] = new window.MediaStream();
- }
- streams[remoteMsid.stream].addTrack(track);
- receiverList.push([track, rtpReceiver, streams[remoteMsid.stream]]);
- } else {
- if (!streams.default) {
- streams.default = new window.MediaStream();
- }
- streams.default.addTrack(track);
- receiverList.push([track, rtpReceiver, streams.default]);
- }
- } else {
- // FIXME: actually the receiver should be created later.
- delete transceiver.rtpReceiver;
- }
- }
- });
-
- 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);
- }
- });
- }
- });
-
- // check whether addIceCandidate({}) was called within four seconds after
- // setRemoteDescription.
- window.setTimeout(function() {
- if (!(self && self.transceivers)) {
- return;
- }
- self.transceivers.forEach(function(transceiver) {
- if (transceiver.iceTransport &&
- transceiver.iceTransport.state === 'new' &&
- transceiver.iceTransport.getRemoteCandidates().length > 0) {
- console.warn('Timeout for addRemoteCandidate. Consider sending ' +
- 'an end-of-candidates notification');
- transceiver.iceTransport.addRemoteCandidate({});
- }
- });
- }, 4000);
-
- if (arguments.length > 1 && typeof arguments[1] === 'function') {
- window.setTimeout(arguments[1], 0);
- }
- return Promise.resolve();
- };
-
- 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.
- 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.
- RTCPeerConnection.prototype._maybeFireNegotiationNeeded = function() {
- var self = this;
- if (this.signalingState !== 'stable' || this.needNegotiation === true) {
- return;
- }
- this.needNegotiation = true;
- window.setTimeout(function() {
- if (self.needNegotiation === false) {
- return;
- }
- self.needNegotiation = false;
- var event = new Event('negotiationneeded');
- self.dispatchEvent(event);
- if (self.onnegotiationneeded !== null) {
- self.onnegotiationneeded(event);
- }
- }, 0);
- };
-
- // Update the connection state.
- RTCPeerConnection.prototype._updateConnectionState = function() {
- var self = this;
- var newState;
- var states = {
- 'new': 0,
- closed: 0,
- connecting: 0,
- checking: 0,
- connected: 0,
- completed: 0,
- disconnected: 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);
- }
- }
- };
-
- 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 numAudioTracks = this.transceivers.filter(function(t) {
- return t.kind === 'audio';
- }).length;
- var numVideoTracks = this.transceivers.filter(function(t) {
- return t.kind === 'video';
- }).length;
-
- // 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) {
- if (offerOptions.offerToReceiveAudio === true) {
- numAudioTracks = 1;
- } else if (offerOptions.offerToReceiveAudio === false) {
- numAudioTracks = 0;
- } else {
- numAudioTracks = offerOptions.offerToReceiveAudio;
- }
- }
- if (offerOptions.offerToReceiveVideo !== undefined) {
- if (offerOptions.offerToReceiveVideo === true) {
- numVideoTracks = 1;
- } else if (offerOptions.offerToReceiveVideo === false) {
- numVideoTracks = 0;
- } else {
- numVideoTracks = offerOptions.offerToReceiveVideo;
- }
- }
- }
-
- this.transceivers.forEach(function(transceiver) {
- if (transceiver.kind === 'audio') {
- numAudioTracks--;
- if (numAudioTracks < 0) {
- transceiver.wantReceive = false;
- }
- } else if (transceiver.kind === 'video') {
- numVideoTracks--;
- if (numVideoTracks < 0) {
- transceiver.wantReceive = false;
- }
- }
- });
-
- // Create M-lines for recvonly streams.
- while (numAudioTracks > 0 || numVideoTracks > 0) {
- if (numAudioTracks > 0) {
- this._createTransceiver('audio');
- numAudioTracks--;
- }
- if (numVideoTracks > 0) {
- this._createTransceiver('video');
- numVideoTracks--;
- }
- }
- // reorder tracks
- var transceivers = sortTracks(this.transceivers);
-
- var sdp = SDPUtils.writeSessionBoilerplate(this._sdpSessionId);
- transceivers.forEach(function(transceiver, sdpMLineIndex) {
- // For each track, create an ice gatherer, ice transport,
- // dtls transport, potentially rtpsender and rtpreceiver.
- var track = transceiver.track;
- var kind = transceiver.kind;
- var mid = SDPUtils.generateIdentifier();
- transceiver.mid = mid;
-
- if (!transceiver.iceGatherer) {
- transceiver.iceGatherer = self.usingBundle && sdpMLineIndex > 0 ?
- transceivers[0].iceGatherer :
- self._createIceGatherer(mid, sdpMLineIndex);
- }
-
- var localCapabilities = window.RTCRtpSender.getCapabilities(kind);
- // filter RTX until additional stuff needed for RTX is implemented
- // in adapter.js
- if (edgeVersion < 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';
- }
- });
-
- // generate an ssrc now, to be used later in rtpSender.send
- var sendEncodingParameters = [{
- ssrc: (2 * sdpMLineIndex + 1) * 1001
- }];
- if (track) {
- // add RTX
- if (edgeVersion >= 15019 && kind === 'video') {
- sendEncodingParameters[0].rtx = {
- ssrc: (2 * sdpMLineIndex + 1) * 1001 + 1
- };
- }
- }
-
- if (transceiver.wantReceive) {
- transceiver.rtpReceiver = new window.RTCRtpReceiver(
- transceiver.dtlsTransport,
- kind
- );
- }
-
- transceiver.localCapabilities = localCapabilities;
- transceiver.sendEncodingParameters = sendEncodingParameters;
- });
-
- // 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';
-
- transceivers.forEach(function(transceiver, sdpMLineIndex) {
- sdp += SDPUtils.writeMediaSection(transceiver,
- transceiver.localCapabilities, 'offer', transceiver.stream);
- sdp += 'a=rtcp-rsize\r\n';
- });
-
- this._pendingOffer = transceivers;
- var desc = new window.RTCSessionDescription({
- type: 'offer',
- sdp: sdp
- });
- if (arguments.length && typeof arguments[0] === 'function') {
- window.setTimeout(arguments[0], 0, desc);
- }
- return Promise.resolve(desc);
- };
-
- RTCPeerConnection.prototype.createAnswer = function() {
- var sdp = SDPUtils.writeSessionBoilerplate(this._sdpSessionId);
- if (this.usingBundle) {
- sdp += 'a=group:BUNDLE ' + this.transceivers.map(function(t) {
- return t.mid;
- }).join(' ') + '\r\n';
- }
- this.transceivers.forEach(function(transceiver, sdpMLineIndex) {
- 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;
- }
-
- // FIXME: look at direction.
- if (transceiver.stream) {
- var localTrack;
- if (transceiver.kind === 'audio') {
- localTrack = transceiver.stream.getAudioTracks()[0];
- } else if (transceiver.kind === 'video') {
- localTrack = transceiver.stream.getVideoTracks()[0];
- }
- if (localTrack) {
- // add RTX
- if (edgeVersion >= 15019 && transceiver.kind === 'video') {
- transceiver.sendEncodingParameters[0].rtx = {
- ssrc: (2 * sdpMLineIndex + 2) * 1001 + 1
- };
- }
- }
- }
-
- // Calculate intersection of capabilities.
- var commonCapabilities = 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', transceiver.stream);
- if (transceiver.rtcpParameters &&
- transceiver.rtcpParameters.reducedSize) {
- sdp += 'a=rtcp-rsize\r\n';
- }
- });
-
- var desc = new window.RTCSessionDescription({
- type: 'answer',
- sdp: sdp
- });
- if (arguments.length && typeof arguments[0] === 'function') {
- window.setTimeout(arguments[0], 0, desc);
- }
- return Promise.resolve(desc);
- };
-
- 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 &&
- !(cand.component === '1' || 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();
- };
-
- 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);
- });
- });
- };
- return RTCPeerConnection;
-};
-
-},{"sdp":1}],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.
- */
- /* eslint-env node */
-'use strict';
-
-var utils = require('../utils');
-
-var firefoxShim = {
- shimOnTrack: function(window) {
- 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(window) {
- // 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(window) {
- var browserDetails = utils.detectBrowser(window);
-
- 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 window.mozRTCPeerConnection(pcConfig, pcConstraints);
- };
- window.RTCPeerConnection.prototype =
- window.mozRTCPeerConnection.prototype;
-
- // wrap static methods. Currently just generateCertificate.
- if (window.mozRTCPeerConnection.generateCertificate) {
- Object.defineProperty(window.RTCPeerConnection, 'generateCertificate', {
- get: function() {
- return window.mozRTCPeerConnection.generateCertificate;
- }
- });
- }
-
- window.RTCSessionDescription = window.mozRTCSessionDescription;
- window.RTCIceCandidate = window.mozRTCIceCandidate;
- }
-
- // shim away need for obsolete RTCIceCandidate/RTCSessionDescription.
- ['setLocalDescription', 'setRemoteDescription', 'addIceCandidate']
- .forEach(function(method) {
- var nativeMethod = window.RTCPeerConnection.prototype[method];
- window.RTCPeerConnection.prototype[method] = function() {
- arguments[0] = new ((method === 'addIceCandidate') ?
- window.RTCIceCandidate :
- window.RTCSessionDescription)(arguments[0]);
- return nativeMethod.apply(this, arguments);
- };
- });
-
- // support for addIceCandidate(null or undefined)
- var nativeAddIceCandidate =
- window.RTCPeerConnection.prototype.addIceCandidate;
- window.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 = window.RTCPeerConnection.prototype.getStats;
- window.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":12,"./getusermedia":10}],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 utils = require('../utils');
-var logging = utils.log;
-
-// Expose public methods.
-module.exports = function(window) {
- var browserDetails = utils.detectBrowser(window);
- var navigator = window && window.navigator;
- var MediaStreamTrack = window && window.MediaStreamTrack;
-
- var shimError_ = function(e) {
- return {
- name: {
- InternalError: 'NotReadableError',
- NotSupportedError: 'TypeError',
- PermissionDeniedError: 'NotAllowedError',
- SecurityError: '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));
- });
- };
- }
- if (!(browserDetails.version > 55 &&
- 'autoGainControl' in navigator.mediaDevices.getSupportedConstraints())) {
- var remap = function(obj, a, b) {
- if (a in obj && !(b in obj)) {
- obj[b] = obj[a];
- delete obj[a];
- }
- };
-
- var nativeGetUserMedia = navigator.mediaDevices.getUserMedia.
- bind(navigator.mediaDevices);
- navigator.mediaDevices.getUserMedia = function(c) {
- if (typeof c === 'object' && typeof c.audio === 'object') {
- c = JSON.parse(JSON.stringify(c));
- remap(c.audio, 'autoGainControl', 'mozAutoGainControl');
- remap(c.audio, 'noiseSuppression', 'mozNoiseSuppression');
- }
- return nativeGetUserMedia(c);
- };
-
- if (MediaStreamTrack && MediaStreamTrack.prototype.getSettings) {
- var nativeGetSettings = MediaStreamTrack.prototype.getSettings;
- MediaStreamTrack.prototype.getSettings = function() {
- var obj = nativeGetSettings.apply(this, arguments);
- remap(obj, 'mozAutoGainControl', 'autoGainControl');
- remap(obj, 'mozNoiseSuppression', 'noiseSuppression');
- return obj;
- };
- }
-
- if (MediaStreamTrack && MediaStreamTrack.prototype.applyConstraints) {
- var nativeApplyConstraints = MediaStreamTrack.prototype.applyConstraints;
- MediaStreamTrack.prototype.applyConstraints = function(c) {
- if (this.kind === 'audio' && typeof c === 'object') {
- c = JSON.parse(JSON.stringify(c));
- remap(c, 'autoGainControl', 'mozAutoGainControl');
- remap(c, 'noiseSuppression', 'mozNoiseSuppression');
- }
- return nativeApplyConstraints.apply(this, [c]);
- };
- }
- }
- 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":12}],11:[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 utils = require('../utils');
-
-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() { },
-
- shimLocalStreamsAPI: function(window) {
- if (typeof window !== 'object' || !window.RTCPeerConnection) {
- return;
- }
- if (!('getLocalStreams' in window.RTCPeerConnection.prototype)) {
- window.RTCPeerConnection.prototype.getLocalStreams = function() {
- if (!this._localStreams) {
- this._localStreams = [];
- }
- return this._localStreams;
- };
- }
- if (!('getStreamById' in window.RTCPeerConnection.prototype)) {
- window.RTCPeerConnection.prototype.getStreamById = function(id) {
- var result = null;
- if (this._localStreams) {
- this._localStreams.forEach(function(stream) {
- if (stream.id === id) {
- result = stream;
- }
- });
- }
- if (this._remoteStreams) {
- this._remoteStreams.forEach(function(stream) {
- if (stream.id === id) {
- result = stream;
- }
- });
- }
- return result;
- };
- }
- if (!('addStream' in window.RTCPeerConnection.prototype)) {
- var _addTrack = window.RTCPeerConnection.prototype.addTrack;
- window.RTCPeerConnection.prototype.addStream = function(stream) {
- if (!this._localStreams) {
- this._localStreams = [];
- }
- if (this._localStreams.indexOf(stream) === -1) {
- this._localStreams.push(stream);
- }
- var self = this;
- stream.getTracks().forEach(function(track) {
- _addTrack.call(self, track, stream);
- });
- };
-
- window.RTCPeerConnection.prototype.addTrack = function(track, stream) {
- if (stream) {
- if (!this._localStreams) {
- this._localStreams = [stream];
- } else if (this._localStreams.indexOf(stream) === -1) {
- this._localStreams.push(stream);
- }
- }
- _addTrack.call(this, track, stream);
- };
- }
- if (!('removeStream' in window.RTCPeerConnection.prototype)) {
- window.RTCPeerConnection.prototype.removeStream = function(stream) {
- if (!this._localStreams) {
- this._localStreams = [];
- }
- var index = this._localStreams.indexOf(stream);
- if (index === -1) {
- return;
- }
- this._localStreams.splice(index, 1);
- var self = this;
- var tracks = stream.getTracks();
- this.getSenders().forEach(function(sender) {
- if (tracks.indexOf(sender.track) !== -1) {
- self.removeTrack(sender);
- }
- });
- };
- }
- },
- shimRemoteStreamsAPI: function(window) {
- if (typeof window !== 'object' || !window.RTCPeerConnection) {
- return;
- }
- if (!('getRemoteStreams' in window.RTCPeerConnection.prototype)) {
- window.RTCPeerConnection.prototype.getRemoteStreams = function() {
- return this._remoteStreams ? this._remoteStreams : [];
- };
- }
- if (!('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._remoteStreams) {
- this._remoteStreams = [];
- }
- if (this._remoteStreams.indexOf(stream) >= 0) {
- return;
- }
- this._remoteStreams.push(stream);
- var event = new Event('addstream');
- event.stream = e.streams[0];
- this.dispatchEvent(event);
- }.bind(this));
- }
- });
- }
- },
- shimCallbacksAPI: function(window) {
- if (typeof window !== 'object' || !window.RTCPeerConnection) {
- return;
- }
- var prototype = window.RTCPeerConnection.prototype;
- var createOffer = prototype.createOffer;
- var createAnswer = prototype.createAnswer;
- var setLocalDescription = prototype.setLocalDescription;
- var setRemoteDescription = prototype.setRemoteDescription;
- var addIceCandidate = prototype.addIceCandidate;
-
- prototype.createOffer = function(successCallback, failureCallback) {
- var options = (arguments.length >= 2) ? arguments[2] : arguments[0];
- var promise = createOffer.apply(this, [options]);
- if (!failureCallback) {
- return promise;
- }
- promise.then(successCallback, failureCallback);
- return Promise.resolve();
- };
-
- prototype.createAnswer = function(successCallback, failureCallback) {
- var options = (arguments.length >= 2) ? arguments[2] : arguments[0];
- var promise = createAnswer.apply(this, [options]);
- if (!failureCallback) {
- return promise;
- }
- promise.then(successCallback, failureCallback);
- return Promise.resolve();
- };
-
- var withCallback = function(description, successCallback, failureCallback) {
- var promise = setLocalDescription.apply(this, [description]);
- if (!failureCallback) {
- return promise;
- }
- promise.then(successCallback, failureCallback);
- return Promise.resolve();
- };
- prototype.setLocalDescription = withCallback;
-
- withCallback = function(description, successCallback, failureCallback) {
- var promise = setRemoteDescription.apply(this, [description]);
- if (!failureCallback) {
- return promise;
- }
- promise.then(successCallback, failureCallback);
- return Promise.resolve();
- };
- prototype.setRemoteDescription = withCallback;
-
- withCallback = function(candidate, successCallback, failureCallback) {
- var promise = addIceCandidate.apply(this, [candidate]);
- if (!failureCallback) {
- return promise;
- }
- promise.then(successCallback, failureCallback);
- return Promise.resolve();
- };
- prototype.addIceCandidate = withCallback;
- },
- shimGetUserMedia: function(window) {
- var navigator = window && window.navigator;
-
- 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);
- }
- }
- },
- shimRTCIceServerUrls: function(window) {
- // migrate from non-spec RTCIceServer.url to RTCIceServer.urls
- var OrigPeerConnection = window.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')) {
- utils.deprecated('RTCIceServer.url', 'RTCIceServer.urls');
- server = JSON.parse(JSON.stringify(server));
- server.urls = server.url;
- delete 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;
- }
- });
- }
-};
-
-// Expose public methods.
-module.exports = {
- shimCallbacksAPI: safariShim.shimCallbacksAPI,
- shimLocalStreamsAPI: safariShim.shimLocalStreamsAPI,
- shimRemoteStreamsAPI: safariShim.shimRemoteStreamsAPI,
- shimGetUserMedia: safariShim.shimGetUserMedia,
- shimRTCIceServerUrls: safariShim.shimRTCIceServerUrls
- // TODO
- // shimPeerConnection: safariShim.shimPeerConnection
-};
-
-},{"../utils":12}],12:[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;
-var deprecationWarnings_ = 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';
- },
-
- /**
- * Disable or enable deprecation warnings
- * @param {!boolean} bool set to true to disable warnings.
- */
- disableWarnings: function(bool) {
- if (typeof bool !== 'boolean') {
- return new Error('Argument type: ' + typeof bool +
- '. Please use a boolean.');
- }
- deprecationWarnings_ = !bool;
- return 'adapter.js deprecation warnings ' + (bool ? 'disabled' : 'enabled');
- },
-
- log: function() {
- if (typeof window === 'object') {
- if (logDisabled_) {
- return;
- }
- if (typeof console !== 'undefined' && typeof console.log === 'function') {
- console.log.apply(console, arguments);
- }
- }
- },
-
- /**
- * Shows a deprecation warning suggesting the modern and spec-compatible API.
- */
- deprecated: function(oldMethod, newMethod) {
- if (!deprecationWarnings_) {
- return;
- }
- console.warn(oldMethod + ' is deprecated, please use ' + newMethod +
- ' instead.');
- },
-
- /**
- * 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(window) {
- var navigator = window && window.navigator;
-
- // 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(window) {
- var URL = window && window.URL;
-
- 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);
- utils.deprecated('URL.createObjectURL(stream)',
- 'elem.srcObject = stream');
- 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 = window.HTMLMediaElement.prototype.setAttribute;
- window.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,
- deprecated: utils.deprecated,
- disableLog: utils.disableLog,
- disableWarnings: utils.disableWarnings,
- extractVersion: utils.extractVersion,
- shimCreateObjectURL: utils.shimCreateObjectURL,
- detectBrowser: utils.detectBrowser.bind(utils)
-};
-
-},{}]},{},[2])(2)
-});
\ No newline at end of file
projects / henge / kiak.git / commitdiff