From 9cdda723cc90492cd4ac1fb32d31e5077293a2b9 Mon Sep 17 00:00:00 2001 From: Justin Worthe Date: Sun, 12 Nov 2017 13:12:35 +0200 Subject: Added loading and error indications for web UI --- web/adapter.js | 4469 -------------------------------------------------------- 1 file changed, 4469 deletions(-) delete mode 100644 web/adapter.js (limited to 'web/adapter.js') diff --git a/web/adapter.js b/web/adapter.js deleted file mode 100644 index 6bfa37b..0000000 --- a/web/adapter.js +++ /dev/null @@ -1,4469 +0,0 @@ -(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= 14393 && - url.indexOf('?transport=udp') === -1; - }); - - 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; -} - -function maybeAddCandidate(iceTransport, candidate) { - // Edge's internal representation adds some fields therefore - // not all fieldѕ are taken into account. - var alreadyAdded = iceTransport.getRemoteCandidates() - .find(function(remoteCandidate) { - return candidate.foundation === remoteCandidate.foundation && - candidate.ip === remoteCandidate.ip && - candidate.port === remoteCandidate.port && - candidate.priority === remoteCandidate.priority && - candidate.protocol === remoteCandidate.protocol && - candidate.type === remoteCandidate.type; - }); - if (!alreadyAdded) { - iceTransport.addRemoteCandidate(candidate); - } - return !alreadyAdded; -} - -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.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.needNegotiation = false; - - this.localStreams = []; - this.remoteStreams = []; - - this.localDescription = null; - this.remoteDescription = null; - - this.signalingState = 'stable'; - this.iceConnectionState = 'new'; - this.iceGatheringState = 'new'; - - config = JSON.parse(JSON.stringify(config || {})); - - this.usingBundle = config.bundlePolicy === 'max-bundle'; - if (config.rtcpMuxPolicy === 'negotiate') { - var e = new Error('rtcpMuxPolicy \'negotiate\' is not supported'); - e.name = 'NotSupportedError'; - throw(e); - } else if (!config.rtcpMuxPolicy) { - config.rtcpMuxPolicy = 'require'; - } - - switch (config.iceTransportPolicy) { - case 'all': - case 'relay': - break; - default: - config.iceTransportPolicy = 'all'; - break; - } - - switch (config.bundlePolicy) { - case 'balanced': - case 'max-compat': - case 'max-bundle': - break; - default: - config.bundlePolicy = 'balanced'; - break; - } - - config.iceServers = filterIceServers(config.iceServers || [], edgeVersion); - - this._iceGatherers = []; - if (config.iceCandidatePoolSize) { - for (var i = config.iceCandidatePoolSize; i > 0; i--) { - this._iceGatherers = new window.RTCIceGatherer({ - iceServers: config.iceServers, - gatherPolicy: config.iceTransportPolicy - }); - } - } else { - config.iceCandidatePoolSize = 0; - } - - this._config = config; - - // per-track iceGathers, iceTransports, dtlsTransports, rtpSenders, ... - // everything that is needed to describe a SDP m-line. - this.transceivers = []; - - this._sdpSessionId = SDPUtils.generateSessionId(); - this._sdpSessionVersion = 0; - - this._dtlsRole = undefined; // role for a=setup to use in answers. - }; - - RTCPeerConnection.prototype._emitGatheringStateChange = function() { - var event = new Event('icegatheringstatechange'); - this.dispatchEvent(event); - if (typeof this.onicegatheringstatechange === 'function') { - this.onicegatheringstatechange(event); - } - }; - - RTCPeerConnection.prototype.getConfiguration = function() { - return this._config; - }; - - RTCPeerConnection.prototype.getLocalStreams = function() { - return this.localStreams; - }; - - RTCPeerConnection.prototype.getRemoteStreams = function() { - return this.remoteStreams; - }; - - // 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); - } - - this._maybeFireNegotiationNeeded(); - - if (this.localStreams.indexOf(stream) === -1) { - this.localStreams.push(stream); - } - - transceiver.track = track; - transceiver.stream = stream; - transceiver.rtpSender = new window.RTCRtpSender(track, - transceiver.dtlsTransport); - return transceiver.rtpSender; - }; - - RTCPeerConnection.prototype.addStream = function(stream) { - var self = this; - if (edgeVersion >= 15025) { - 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); - }); - } - }; - - 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; - }); - }; - - - RTCPeerConnection.prototype._createIceGatherer = function(sdpMLineIndex, - usingBundle) { - var self = this; - if (usingBundle && sdpMLineIndex > 0) { - return this.transceivers[0].iceGatherer; - } else if (this._iceGatherers.length) { - return this._iceGatherers.shift(); - } - var iceGatherer = new window.RTCIceGatherer({ - iceServers: this._config.iceServers, - gatherPolicy: this._config.iceTransportPolicy - }); - Object.defineProperty(iceGatherer, 'state', - {value: 'new', writable: true} - ); - - this.transceivers[sdpMLineIndex].candidates = []; - this.transceivers[sdpMLineIndex].bufferCandidates = function(event) { - var end = !event.candidate || Object.keys(event.candidate).length === 0; - // polyfill since RTCIceGatherer.state is not implemented in - // Edge 10547 yet. - iceGatherer.state = end ? 'completed' : 'gathering'; - if (self.transceivers[sdpMLineIndex].candidates !== null) { - self.transceivers[sdpMLineIndex].candidates.push(event.candidate); - } - }; - iceGatherer.addEventListener('localcandidate', - this.transceivers[sdpMLineIndex].bufferCandidates); - return iceGatherer; - }; - - // start gathering from an RTCIceGatherer. - RTCPeerConnection.prototype._gather = function(mid, sdpMLineIndex) { - var self = this; - var iceGatherer = this.transceivers[sdpMLineIndex].iceGatherer; - if (iceGatherer.onlocalcandidate) { - return; - } - var candidates = this.transceivers[sdpMLineIndex].candidates; - this.transceivers[sdpMLineIndex].candidates = null; - iceGatherer.removeEventListener('localcandidate', - this.transceivers[sdpMLineIndex].bufferCandidates); - iceGatherer.onlocalcandidate = function(evt) { - if (self.usingBundle && sdpMLineIndex > 0) { - // if we know that we use bundle we can drop candidates with - // ѕdpMLineIndex > 0. If we don't do this then our state gets - // confused since we dispose the extra ice gatherer. - return; - } - var event = new Event('icecandidate'); - event.candidate = {sdpMid: mid, sdpMLineIndex: sdpMLineIndex}; - - var cand = evt.candidate; - // Edge emits an empty object for RTCIceCandidateComplete‥ - var end = !cand || Object.keys(cand).length === 0; - if (end) { - // polyfill since RTCIceGatherer.state is not implemented in - // Edge 10547 yet. - if (iceGatherer.state === 'new' || iceGatherer.state === 'gathering') { - iceGatherer.state = 'completed'; - } - } else { - if (iceGatherer.state === 'new') { - iceGatherer.state = 'gathering'; - } - // 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 complete = self.transceivers.every(function(transceiver) { - return transceiver.iceGatherer && - transceiver.iceGatherer.state === 'completed'; - }); - - if (self.iceGatheringState !== 'gathering') { - self.iceGatheringState = 'gathering'; - self._emitGatheringStateChange(); - } - - // Emit candidate. Also emit null candidate when all gatherers are - // complete. - if (!end) { - self.dispatchEvent(event); - if (typeof self.onicecandidate === 'function') { - self.onicecandidate(event); - } - } - if (complete) { - self.dispatchEvent(new Event('icecandidate')); - if (typeof self.onicecandidate === 'function') { - self.onicecandidate(new Event('icecandidate')); - } - self.iceGatheringState = 'complete'; - self._emitGatheringStateChange(); - } - }; - - // emit already gathered candidates. - window.setTimeout(function() { - candidates.forEach(function(candidate) { - var e = new Event('RTCIceGatherEvent'); - e.candidate = candidate; - iceGatherer.onlocalcandidate(e); - }); - }, 0); - }; - - // 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.ondtlsstatechange; - 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 && params.codecs.length > 0) { - // 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; - var args = arguments; - - if (!isActionAllowedInSignalingState('setLocalDescription', - description.type, this.signalingState)) { - return new Promise(function(resolve, reject) { - var e = new Error('Can not set local ' + description.type + - ' in state ' + self.signalingState); - e.name = 'InvalidStateError'; - if (args.length > 2 && typeof args[2] === 'function') { - args[2].apply(null, [e]); - } - reject(e); - }); - } - - var sections; - var sessionpart; - if (description.type === 'offer') { - // 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.transceivers[sdpMLineIndex].localCapabilities = caps; - }); - - this.transceivers.forEach(function(transceiver, sdpMLineIndex) { - self._gather(transceiver.mid, sdpMLineIndex); - }); - } 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; - - // treat bundle-only as not-rejected. - var rejected = SDPUtils.isRejected(mediaSection) && - !SDPUtils.matchPrefix(mediaSection, 'a=bundle-only').length === 1; - - 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) { - self._gather(transceiver.mid, sdpMLineIndex); - if (iceTransport.state === 'new') { - iceTransport.start(iceGatherer, remoteIceParameters, - isIceLite ? 'controlling' : 'controlled'); - } - if (dtlsTransport.state === 'new') { - 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 cb = arguments.length > 1 && typeof arguments[1] === 'function' && - arguments[1]; - return new Promise(function(resolve) { - if (cb) { - cb.apply(null); - } - resolve(); - }); - }; - - RTCPeerConnection.prototype.setRemoteDescription = function(description) { - var self = this; - var args = arguments; - - if (!isActionAllowedInSignalingState('setRemoteDescription', - description.type, this.signalingState)) { - return new Promise(function(resolve, reject) { - var e = new Error('Can not set remote ' + description.type + - ' in state ' + self.signalingState); - e.name = 'InvalidStateError'; - if (args.length > 2 && typeof args[2] === 'function') { - args[2].apply(null, [e]); - } - reject(e); - }); - } - - var streams = {}; - this.remoteStreams.forEach(function(stream) { - streams[stream.id] = stream; - }); - 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); - // treat bundle-only as not-rejected. - var rejected = SDPUtils.isRejected(mediaSection) && - !SDPUtils.matchPrefix(mediaSection, 'a=bundle-only').length === 1; - 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; - }); - - // 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 = self._createIceGatherer(sdpMLineIndex, - usingBundle); - } - - if (cands.length && transceiver.iceTransport.state === 'new') { - if (isComplete && (!usingBundle || sdpMLineIndex === 0)) { - transceiver.iceTransport.setRemoteCandidates(cands); - } else { - cands.forEach(function(candidate) { - maybeAddCandidate(transceiver.iceTransport, candidate); - }); - } - } - - 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 = transceiver.sendEncodingParameters || [{ - ssrc: (2 * sdpMLineIndex + 2) * 1001 - }]; - - var isNewTrack = false; - if (direction === 'sendrecv' || direction === 'sendonly') { - isNewTrack = !transceiver.rtpReceiver; - rtpReceiver = transceiver.rtpReceiver || - new window.RTCRtpReceiver(transceiver.dtlsTransport, kind); - - if (isNewTrack) { - var stream; - 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; - } - }); - stream = streams[remoteMsid.stream]; - } else { - if (!streams.default) { - streams.default = new window.MediaStream(); - } - stream = streams.default; - } - stream.addTrack(track); - receiverList.push([track, rtpReceiver, stream]); - } - } - - 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, - isNewTrack); - } 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 (cands.length && iceTransport.state === 'new') { - if ((isIceLite || isComplete) && - (!usingBundle || sdpMLineIndex === 0)) { - iceTransport.setRemoteCandidates(cands); - } else { - cands.forEach(function(candidate) { - maybeAddCandidate(transceiver.iceTransport, candidate); - }); - } - } - - if (!usingBundle || sdpMLineIndex === 0) { - if (iceTransport.state === 'new') { - iceTransport.start(iceGatherer, remoteIceParameters, - 'controlling'); - } - if (dtlsTransport.state === 'new') { - 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; - } - } - }); - - if (this._dtlsRole === undefined) { - this._dtlsRole = description.type === 'offer' ? 'active' : 'passive'; - } - - 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) { - if (self.remoteStreams.indexOf(stream) === -1) { - self.remoteStreams.push(stream); - var event = new Event('addstream'); - event.stream = stream; - window.setTimeout(function() { - self.dispatchEvent(event); - if (typeof self.onaddstream === 'function') { - self.onaddstream(event); - } - }); - } - - 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.transceiver = {receiver: receiver}; - trackEvent.streams = [stream]; - window.setTimeout(function() { - self.dispatchEvent(trackEvent); - if (typeof self.ontrack === 'function') { - self.ontrack(trackEvent); - } - }); - }); - } - }); - - // 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); - - return new Promise(function(resolve) { - if (args.length > 1 && typeof args[1] === 'function') { - args[1].apply(null); - } - 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 (typeof this.onsignalingstatechange === 'function') { - 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 (typeof self.onnegotiationneeded === 'function') { - self.onnegotiationneeded(event); - } - }, 0); - }; - - // Update the connection state. - RTCPeerConnection.prototype._updateConnectionState = function() { - 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 !== this.iceConnectionState) { - this.iceConnectionState = newState; - var event = new Event('iceconnectionstatechange'); - this.dispatchEvent(event); - if (typeof this.oniceconnectionstatechange === 'function') { - this.oniceconnectionstatechange(event); - } - } - }; - - RTCPeerConnection.prototype.createOffer = function() { - var self = this; - var args = arguments; - - 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--; - } - } - - var sdp = SDPUtils.writeSessionBoilerplate(this._sdpSessionId, - this._sdpSessionVersion++); - this.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._createIceGatherer(sdpMLineIndex, - self.usingBundle); - } - - 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 = transceiver.sendEncodingParameters || [{ - ssrc: (2 * sdpMLineIndex + 1) * 1001 - }]; - if (track) { - // add RTX - if (edgeVersion >= 15019 && kind === 'video' && - !sendEncodingParameters[0].rtx) { - sendEncodingParameters[0].rtx = { - ssrc: sendEncodingParameters[0].ssrc + 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 ' + this.transceivers.map(function(t) { - return t.mid; - }).join(' ') + '\r\n'; - } - sdp += 'a=ice-options:trickle\r\n'; - - this.transceivers.forEach(function(transceiver, sdpMLineIndex) { - sdp += writeMediaSection(transceiver, transceiver.localCapabilities, - 'offer', transceiver.stream, self._dtlsRole); - sdp += 'a=rtcp-rsize\r\n'; - - if (transceiver.iceGatherer && self.iceGatheringState !== 'new' && - (sdpMLineIndex === 0 || !self.usingBundle)) { - transceiver.iceGatherer.getLocalCandidates().forEach(function(cand) { - cand.component = 1; - sdp += 'a=' + SDPUtils.writeCandidate(cand) + '\r\n'; - }); - - if (transceiver.iceGatherer.state === 'completed') { - sdp += 'a=end-of-candidates\r\n'; - } - } - }); - - var desc = new window.RTCSessionDescription({ - type: 'offer', - sdp: sdp - }); - return new Promise(function(resolve) { - if (args.length > 0 && typeof args[0] === 'function') { - args[0].apply(null, [desc]); - resolve(); - return; - } - resolve(desc); - }); - }; - - RTCPeerConnection.prototype.createAnswer = function() { - var self = this; - var args = arguments; - - var sdp = SDPUtils.writeSessionBoilerplate(this._sdpSessionId, - this._sdpSessionVersion++); - if (this.usingBundle) { - sdp += 'a=group:BUNDLE ' + this.transceivers.map(function(t) { - return t.mid; - }).join(' ') + '\r\n'; - } - var mediaSectionsInOffer = SDPUtils.splitSections( - this.remoteDescription.sdp).length - 1; - this.transceivers.forEach(function(transceiver, sdpMLineIndex) { - if (sdpMLineIndex + 1 > mediaSectionsInOffer) { - return; - } - 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) { - transceiver.sendEncodingParameters[0].rtx = { - ssrc: transceiver.sendEncodingParameters[0].ssrc + 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 += writeMediaSection(transceiver, commonCapabilities, - 'answer', transceiver.stream, self._dtlsRole); - if (transceiver.rtcpParameters && - transceiver.rtcpParameters.reducedSize) { - sdp += 'a=rtcp-rsize\r\n'; - } - }); - - var desc = new window.RTCSessionDescription({ - type: 'answer', - sdp: sdp - }); - return new Promise(function(resolve) { - if (args.length > 0 && typeof args[0] === 'function') { - args[0].apply(null, [desc]); - resolve(); - return; - } - resolve(desc); - }); - }; - - RTCPeerConnection.prototype.addIceCandidate = function(candidate) { - var err; - var sections; - if (!candidate || candidate.candidate === '') { - for (var j = 0; j < this.transceivers.length; j++) { - if (this.transceivers[j].isDatachannel) { - continue; - } - this.transceivers[j].iceTransport.addRemoteCandidate({}); - sections = SDPUtils.splitSections(this.remoteDescription.sdp); - sections[j + 1] += 'a=end-of-candidates\r\n'; - this.remoteDescription.sdp = sections.join(''); - if (this.usingBundle) { - break; - } - } - } else if (!(candidate.sdpMLineIndex !== undefined || candidate.sdpMid)) { - throw new TypeError('sdpMLineIndex or sdpMid required'); - } else if (!this.remoteDescription) { - err = new Error('Can not add ICE candidate without ' + - 'a remote description'); - err.name = 'InvalidStateError'; - } else { - var sdpMLineIndex = candidate.sdpMLineIndex; - if (candidate.sdpMid) { - for (var i = 0; i < this.transceivers.length; i++) { - if (this.transceivers[i].mid === candidate.sdpMid) { - sdpMLineIndex = i; - break; - } - } - } - var transceiver = this.transceivers[sdpMLineIndex]; - if (transceiver) { - if (transceiver.isDatachannel) { - return Promise.resolve(); - } - 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) { - return Promise.resolve(); - } - // when using bundle, avoid adding candidates to the wrong - // ice transport. And avoid adding candidates added in the SDP. - if (sdpMLineIndex === 0 || (sdpMLineIndex > 0 && - transceiver.iceTransport !== this.transceivers[0].iceTransport)) { - if (!maybeAddCandidate(transceiver.iceTransport, cand)) { - err = new Error('Can not add ICE candidate'); - err.name = 'OperationError'; - } - } - - if (!err) { - // update the remoteDescription. - var candidateString = candidate.candidate.trim(); - if (candidateString.indexOf('a=') === 0) { - candidateString = candidateString.substr(2); - } - sections = SDPUtils.splitSections(this.remoteDescription.sdp); - sections[sdpMLineIndex + 1] += 'a=' + - (cand.type ? candidateString : 'end-of-candidates') - + '\r\n'; - this.remoteDescription.sdp = sections.join(''); - } - } else { - err = new Error('Can not add ICE candidate'); - err.name = 'OperationError'; - } - } - var args = arguments; - return new Promise(function(resolve, reject) { - if (err) { - if (args.length > 2 && typeof args[2] === 'function') { - args[2].apply(null, [err]); - } - reject(err); - } else { - if (args.length > 1 && typeof args[1] === 'function') { - args[1].apply(null); - } - 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) { - cb.apply(null, results); - } - resolve(results); - }); - }); - }; - return RTCPeerConnection; -}; - -},{"sdp":2}],2:[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; - case 'ufrag': - candidate.ufrag = parts[i + 1]; // for backward compability. - candidate.usernameFragment = 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: 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 attrіbute. - // Note that Edge does not support unmuxed RTCP. - var mux = SDPUtils.matchPrefix(mediaSection, 'a=rtcp-mux'); - rtcpParameters.mux = mux.length > 0; - - return rtcpParameters; -}; - -// parses either a=msid: or a=ssrc:... msid lines 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 -// sessVersion is optional and defaults to 2 -SDPUtils.writeSessionBoilerplate = function(sessId, sessVer) { - var sessionId; - var version = sessVer !== undefined ? sessVer : 2; - if (sessId) { - sessionId = sessId; - } else { - sessionId = SDPUtils.generateSessionId(); - } - // FIXME: sess-id should be an NTP timestamp. - return 'v=0\r\n' + - 'o=thisisadapterortc ' + sessionId + ' ' + version + ' 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'; -}; - -SDPUtils.parseMLine = function(mediaSection) { - var lines = SDPUtils.splitLines(mediaSection); - var mline = lines[0].split(' '); - return { - kind: mline[0].substr(2), - port: parseInt(mline[1], 10), - protocol: mline[2], - fmt: mline.slice(3).join(' ') - }; -}; - -// Expose public methods. -if (typeof module === 'object') { - module.exports = SDPUtils; -} - -},{}],3:[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":4}],4:[function(require,module,exports){ -/* - * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved. - * - * Use of this source code is governed by a BSD-style license - * that can be found in the LICENSE file in the root of the source - * tree. - */ - /* eslint-env node */ - -'use strict'; - -var utils = require('./utils'); -// Shimming starts here. -module.exports = function(dependencies, opts) { - var window = dependencies && dependencies.window; - - var options = { - shimChrome: true, - shimFirefox: true, - shimEdge: true, - shimSafari: true, - }; - - for (var key in opts) { - if (hasOwnProperty.call(opts, key)) { - options[key] = opts[key]; - } - } - - // 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; - var commonShim = require('./common_shim') || null; - - // Shim browser if found. - switch (browserDetails.browser) { - case 'chrome': - if (!chromeShim || !chromeShim.shimPeerConnection || - !options.shimChrome) { - 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; - commonShim.shimCreateObjectURL(window); - - chromeShim.shimGetUserMedia(window); - chromeShim.shimMediaStream(window); - chromeShim.shimSourceObject(window); - chromeShim.shimPeerConnection(window); - chromeShim.shimOnTrack(window); - chromeShim.shimAddTrackRemoveTrack(window); - chromeShim.shimGetSendersWithDtmf(window); - - commonShim.shimRTCIceCandidate(window); - break; - case 'firefox': - if (!firefoxShim || !firefoxShim.shimPeerConnection || - !options.shimFirefox) { - 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; - commonShim.shimCreateObjectURL(window); - - firefoxShim.shimGetUserMedia(window); - firefoxShim.shimSourceObject(window); - firefoxShim.shimPeerConnection(window); - firefoxShim.shimOnTrack(window); - firefoxShim.shimRemoveStream(window); - - commonShim.shimRTCIceCandidate(window); - break; - case 'edge': - if (!edgeShim || !edgeShim.shimPeerConnection || !options.shimEdge) { - 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; - commonShim.shimCreateObjectURL(window); - - edgeShim.shimGetUserMedia(window); - edgeShim.shimPeerConnection(window); - edgeShim.shimReplaceTrack(window); - - // the edge shim implements the full RTCIceCandidate object. - break; - case 'safari': - if (!safariShim || !options.shimSafari) { - 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; - commonShim.shimCreateObjectURL(window); - - safariShim.shimRTCIceServerUrls(window); - safariShim.shimCallbacksAPI(window); - safariShim.shimLocalStreamsAPI(window); - safariShim.shimRemoteStreamsAPI(window); - safariShim.shimTrackEventTransceiver(window); - safariShim.shimGetUserMedia(window); - safariShim.shimCreateOfferLegacy(window); - - commonShim.shimRTCIceCandidate(window); - break; - default: - logging('Unsupported browser!'); - break; - } - - return adapter; -}; - -},{"./chrome/chrome_shim":5,"./common_shim":7,"./edge/edge_shim":8,"./firefox/firefox_shim":10,"./safari/safari_shim":12,"./utils":13}],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; - -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) { - if (this._ontrack) { - this.removeEventListener('track', this._ontrack); - } - this.addEventListener('track', this._ontrack = f); - } - }); - var origSetRemoteDescription = - window.RTCPeerConnection.prototype.setRemoteDescription; - window.RTCPeerConnection.prototype.setRemoteDescription = function() { - var pc = this; - if (!pc._ontrackpoly) { - pc._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 = pc.getReceivers().find(function(r) { - return r.track && r.track.id === te.track.id; - }); - } else { - receiver = {track: te.track}; - } - - var event = new Event('track'); - event.track = te.track; - event.receiver = receiver; - event.transceiver = {receiver: receiver}; - event.streams = [e.stream]; - pc.dispatchEvent(event); - }); - e.stream.getTracks().forEach(function(track) { - var receiver; - if (window.RTCPeerConnection.prototype.getReceivers) { - receiver = pc.getReceivers().find(function(r) { - return r.track && r.track.id === track.id; - }); - } else { - receiver = {track: track}; - } - var event = new Event('track'); - event.track = track; - event.receiver = receiver; - event.transceiver = {receiver: receiver}; - event.streams = [e.stream]; - pc.dispatchEvent(event); - }); - }; - pc.addEventListener('addstream', pc._ontrackpoly); - } - return origSetRemoteDescription.apply(pc, arguments); - }; - } - }, - - shimGetSendersWithDtmf: function(window) { - // Overrides addTrack/removeTrack, depends on shimAddTrackRemoveTrack. - if (typeof window === 'object' && window.RTCPeerConnection && - !('getSenders' in window.RTCPeerConnection.prototype) && - 'createDTMFSender' in window.RTCPeerConnection.prototype) { - var shimSenderWithDtmf = function(pc, track) { - return { - 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: pc - }; - }; - - // augment addTrack when getSenders is not available. - if (!window.RTCPeerConnection.prototype.getSenders) { - window.RTCPeerConnection.prototype.getSenders = function() { - this._senders = this._senders || []; - return this._senders.slice(); // return a copy of the internal state. - }; - var origAddTrack = window.RTCPeerConnection.prototype.addTrack; - window.RTCPeerConnection.prototype.addTrack = function(track, stream) { - var pc = this; - var sender = origAddTrack.apply(pc, arguments); - if (!sender) { - sender = shimSenderWithDtmf(pc, track); - pc._senders.push(sender); - } - return sender; - }; - - var origRemoveTrack = window.RTCPeerConnection.prototype.removeTrack; - window.RTCPeerConnection.prototype.removeTrack = function(sender) { - var pc = this; - origRemoveTrack.apply(pc, arguments); - var idx = pc._senders.indexOf(sender); - if (idx !== -1) { - pc._senders.splice(idx, 1); - } - }; - } - var origAddStream = window.RTCPeerConnection.prototype.addStream; - 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(shimSenderWithDtmf(pc, track)); - }); - }; - - var origRemoveStream = window.RTCPeerConnection.prototype.removeStream; - 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); - }); - } - }); - } - } - }, - - shimAddTrackRemoveTrack: function(window) { - var browserDetails = utils.detectBrowser(window); - // shim addTrack and removeTrack. - if (window.RTCPeerConnection.prototype.addTrack && - browserDetails.version >= 63) { - return; - } - - // also shim pc.getLocalStreams when addTrack is shimmed - // to return the original streams. - var origGetLocalStreams = window.RTCPeerConnection.prototype - .getLocalStreams; - window.RTCPeerConnection.prototype.getLocalStreams = function() { - var self = this; - var nativeStreams = origGetLocalStreams.apply(this); - self._reverseStreams = self._reverseStreams || {}; - return nativeStreams.map(function(stream) { - return self._reverseStreams[stream.id]; - }); - }; - - var origAddStream = window.RTCPeerConnection.prototype.addStream; - window.RTCPeerConnection.prototype.addStream = function(stream) { - var pc = this; - pc._streams = pc._streams || {}; - pc._reverseStreams = pc._reverseStreams || {}; - - stream.getTracks().forEach(function(track) { - var alreadyExists = pc.getSenders().find(function(s) { - return s.track === track; - }); - if (alreadyExists) { - throw new DOMException('Track already exists.', - 'InvalidAccessError'); - } - }); - // Add identity mapping for consistency with addTrack. - // Unless this is being used with a stream from addTrack. - if (!pc._reverseStreams[stream.id]) { - var newStream = new window.MediaStream(stream.getTracks()); - pc._streams[stream.id] = newStream; - pc._reverseStreams[newStream.id] = stream; - stream = newStream; - } - origAddStream.apply(pc, [stream]); - }; - - var origRemoveStream = window.RTCPeerConnection.prototype.removeStream; - window.RTCPeerConnection.prototype.removeStream = function(stream) { - var pc = this; - pc._streams = pc._streams || {}; - pc._reverseStreams = pc._reverseStreams || {}; - - origRemoveStream.apply(pc, [(pc._streams[stream.id] || stream)]); - delete pc._reverseStreams[(pc._streams[stream.id] ? - pc._streams[stream.id].id : stream.id)]; - delete pc._streams[stream.id]; - }; - - 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'); - } - - var alreadyExists = pc.getSenders().find(function(s) { - return s.track === track; - }); - if (alreadyExists) { - throw new DOMException('Track already exists.', - 'InvalidAccessError'); - } - - pc._streams = pc._streams || {}; - pc._reverseStreams = pc._reverseStreams || {}; - var oldStream = pc._streams[stream.id]; - if (oldStream) { - // this is using odd Chrome behaviour, use with caution: - // https://bugs.chromium.org/p/webrtc/issues/detail?id=7815 - // Note: we rely on the high-level addTrack/dtmf shim to - // create the sender with a dtmf sender. - oldStream.addTrack(track); - - // Trigger ONN async. - Promise.resolve().then(function() { - pc.dispatchEvent(new Event('negotiationneeded')); - }); - } else { - var newStream = new window.MediaStream([track]); - pc._streams[stream.id] = newStream; - pc._reverseStreams[newStream.id] = stream; - pc.addStream(newStream); - } - return pc.getSenders().find(function(s) { - return s.track === track; - }); - }; - - // replace the internal stream id with the external one and - // vice versa. - function replaceInternalStreamId(pc, description) { - var sdp = description.sdp; - Object.keys(pc._reverseStreams || []).forEach(function(internalId) { - var externalStream = pc._reverseStreams[internalId]; - var internalStream = pc._streams[externalStream.id]; - sdp = sdp.replace(new RegExp(internalStream.id, 'g'), - externalStream.id); - }); - return new RTCSessionDescription({ - type: description.type, - sdp: sdp - }); - } - function replaceExternalStreamId(pc, description) { - var sdp = description.sdp; - Object.keys(pc._reverseStreams || []).forEach(function(internalId) { - var externalStream = pc._reverseStreams[internalId]; - var internalStream = pc._streams[externalStream.id]; - sdp = sdp.replace(new RegExp(externalStream.id, 'g'), - internalStream.id); - }); - return new RTCSessionDescription({ - type: description.type, - sdp: sdp - }); - } - ['createOffer', 'createAnswer'].forEach(function(method) { - var nativeMethod = window.RTCPeerConnection.prototype[method]; - window.RTCPeerConnection.prototype[method] = function() { - var pc = this; - var args = arguments; - var isLegacyCall = arguments.length && - typeof arguments[0] === 'function'; - if (isLegacyCall) { - return nativeMethod.apply(pc, [ - function(description) { - var desc = replaceInternalStreamId(pc, description); - args[0].apply(null, [desc]); - }, - function(err) { - if (args[1]) { - args[1].apply(null, err); - } - }, arguments[2] - ]); - } - return nativeMethod.apply(pc, arguments) - .then(function(description) { - return replaceInternalStreamId(pc, description); - }); - }; - }); - - var origSetLocalDescription = - window.RTCPeerConnection.prototype.setLocalDescription; - window.RTCPeerConnection.prototype.setLocalDescription = function() { - var pc = this; - if (!arguments.length || !arguments[0].type) { - return origSetLocalDescription.apply(pc, arguments); - } - arguments[0] = replaceExternalStreamId(pc, arguments[0]); - return origSetLocalDescription.apply(pc, arguments); - }; - - // TODO: mangle getStats: https://w3c.github.io/webrtc-stats/#dom-rtcmediastreamstats-streamidentifier - - var origLocalDescription = Object.getOwnPropertyDescriptor( - window.RTCPeerConnection.prototype, 'localDescription'); - Object.defineProperty(window.RTCPeerConnection.prototype, - 'localDescription', { - get: function() { - var pc = this; - var description = origLocalDescription.get.apply(this); - if (description.type === '') { - return description; - } - return replaceInternalStreamId(pc, description); - } - }); - - window.RTCPeerConnection.prototype.removeTrack = function(sender) { - var pc = this; - if (pc.signalingState === 'closed') { - throw new DOMException( - 'The RTCPeerConnection\'s signalingState is \'closed\'.', - 'InvalidStateError'); - } - // We can not yet check for sender instanceof RTCRtpSender - // since we shim RTPSender. So we check if sender._pc is set. - if (!sender._pc) { - throw new DOMException('Argument 1 of RTCPeerConnection.removeTrack ' + - 'does not implement interface RTCRtpSender.', 'TypeError'); - } - var isLocal = sender._pc === pc; - if (!isLocal) { - throw new DOMException('Sender was not created by this connection.', - 'InvalidAccessError'); - } - - // Search for the native stream the senders track belongs to. - pc._streams = pc._streams || {}; - var stream; - Object.keys(pc._streams).forEach(function(streamid) { - var hasTrack = pc._streams[streamid].getTracks().find(function(track) { - return sender.track === track; - }); - if (hasTrack) { - stream = pc._streams[streamid]; - } - }); - - if (stream) { - if (stream.getTracks().length === 1) { - // if this is the last track of the stream, remove the stream. This - // takes care of any shimmed _senders. - pc.removeStream(pc._reverseStreams[stream.id]); - } else { - // relying on the same odd chrome behaviour as above. - stream.removeTrack(sender.track); - } - pc.dispatchEvent(new Event('negotiationneeded')); - } - }; - }, - - 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')) { - utils.deprecated('RTCIceServer.url', 'RTCIceServer.urls'); - 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, - shimAddTrackRemoveTrack: chromeShim.shimAddTrackRemoveTrack, - shimGetSendersWithDtmf: chromeShim.shimGetSendersWithDtmf, - shimSourceObject: chromeShim.shimSourceObject, - shimPeerConnection: chromeShim.shimPeerConnection, - shimGetUserMedia: require('./getusermedia') -}; - -},{"../utils.js":13,"./getusermedia":6}],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.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) { - if (browserDetails.version >= 61) { - return func(constraints); - } - 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 < 66; - - 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) { - if (onError) { - 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":13}],7:[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'); -var utils = require('./utils'); - -// Wraps the peerconnection event eventNameToWrap in a function -// which returns the modified event object. -function wrapPeerConnectionEvent(window, eventNameToWrap, wrapper) { - if (!window.RTCPeerConnection) { - return; - } - var proto = window.RTCPeerConnection.prototype; - var nativeAddEventListener = proto.addEventListener; - proto.addEventListener = function(nativeEventName, cb) { - if (nativeEventName !== eventNameToWrap) { - return nativeAddEventListener.apply(this, arguments); - } - var wrappedCallback = function(e) { - cb(wrapper(e)); - }; - this._eventMap = this._eventMap || {}; - this._eventMap[cb] = wrappedCallback; - return nativeAddEventListener.apply(this, [nativeEventName, - wrappedCallback]); - }; - - var nativeRemoveEventListener = proto.removeEventListener; - proto.removeEventListener = function(nativeEventName, cb) { - if (nativeEventName !== eventNameToWrap || !this._eventMap - || !this._eventMap[cb]) { - return nativeRemoveEventListener.apply(this, arguments); - } - var unwrappedCb = this._eventMap[cb]; - delete this._eventMap[cb]; - return nativeRemoveEventListener.apply(this, [nativeEventName, - unwrappedCb]); - }; - - Object.defineProperty(proto, 'on' + eventNameToWrap, { - get: function() { - return this['_on' + eventNameToWrap]; - }, - set: function(cb) { - if (this['_on' + eventNameToWrap]) { - this.removeEventListener(eventNameToWrap, - this['_on' + eventNameToWrap]); - delete this['_on' + eventNameToWrap]; - } - if (cb) { - this.addEventListener(eventNameToWrap, - this['_on' + eventNameToWrap] = cb); - } - } - }); -} - -module.exports = { - shimRTCIceCandidate: function(window) { - // foundation is arbitrarily chosen as an indicator for full support for - // https://w3c.github.io/webrtc-pc/#rtcicecandidate-interface - if (window.RTCIceCandidate && 'foundation' in - window.RTCIceCandidate.prototype) { - return; - } - - var NativeRTCIceCandidate = window.RTCIceCandidate; - window.RTCIceCandidate = function(args) { - // Remove the a= which shouldn't be part of the candidate string. - if (typeof args === 'object' && args.candidate && - args.candidate.indexOf('a=') === 0) { - args = JSON.parse(JSON.stringify(args)); - args.candidate = args.candidate.substr(2); - } - - // Augment the native candidate with the parsed fields. - var nativeCandidate = new NativeRTCIceCandidate(args); - var parsedCandidate = SDPUtils.parseCandidate(args.candidate); - var augmentedCandidate = Object.assign(nativeCandidate, - parsedCandidate); - - // Add a serializer that does not serialize the extra attributes. - augmentedCandidate.toJSON = function() { - return { - candidate: augmentedCandidate.candidate, - sdpMid: augmentedCandidate.sdpMid, - sdpMLineIndex: augmentedCandidate.sdpMLineIndex, - usernameFragment: augmentedCandidate.usernameFragment, - }; - }; - return augmentedCandidate; - }; - - // Hook up the augmented candidate in onicecandidate and - // addEventListener('icecandidate', ...) - wrapPeerConnectionEvent(window, 'icecandidate', function(e) { - if (e.candidate) { - Object.defineProperty(e, 'candidate', { - value: new window.RTCIceCandidate(e.candidate), - writable: 'false' - }); - } - return e; - }); - }, - - // 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 && - URL.createObjectURL && URL.revokeObjectURL)) { - // 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); - }; - } -}; - -},{"./utils":13,"sdp":2}],8:[function(require,module,exports){ -/* - * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved. - * - * Use of this source code is governed by a BSD-style license - * that can be found in the LICENSE file in the root of the source - * tree. - */ - /* eslint-env node */ -'use strict'; - -var 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); - } - }); - } - } - - // ORTC defines the DTMF sender a bit different. - // https://github.com/w3c/ortc/issues/714 - if (window.RTCRtpSender && !('dtmf' in window.RTCRtpSender.prototype)) { - Object.defineProperty(window.RTCRtpSender.prototype, 'dtmf', { - get: function() { - if (this._dtmf === undefined) { - if (this.track.kind === 'audio') { - this._dtmf = new window.RTCDtmfSender(this); - } else if (this.track.kind === 'video') { - this._dtmf = null; - } - } - return this._dtmf; - } - }); - } - - 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":13,"./getusermedia":9,"rtcpeerconnection-shim":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'; - -// 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)); - }); - }; -}; - -},{}],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 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.transceiver = {receiver: event.receiver}; - event.streams = [e.stream]; - this.dispatchEvent(event); - }.bind(this)); - }.bind(this)); - } - }); - } - if (typeof window === 'object' && window.RTCTrackEvent && - ('receiver' in window.RTCTrackEvent.prototype) && - !('transceiver' in window.RTCTrackEvent.prototype)) { - Object.defineProperty(window.RTCTrackEvent.prototype, 'transceiver', { - get: function() { - return {receiver: this.receiver}; - } - }); - } - }, - - 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); - }; - }, - - shimRemoveStream: function(window) { - if ('removeStream' in window.RTCPeerConnection.prototype) { - return; - } - window.RTCPeerConnection.prototype.removeStream = function(stream) { - utils.deprecated('removeStream', 'removeTrack'); - this.getSenders().forEach(function(sender) { - if (sender.track && stream.getTracks().indexOf(sender.track) !== -1) { - this.removeTrack(sender); - } - }); - }; - } -}; - -// Expose public methods. -module.exports = { - shimOnTrack: firefoxShim.shimOnTrack, - shimSourceObject: firefoxShim.shimSourceObject, - shimPeerConnection: firefoxShim.shimPeerConnection, - shimRemoveStream: firefoxShim.shimRemoveStream, - shimGetUserMedia: require('./getusermedia') -}; - -},{"../utils":13,"./getusermedia":11}],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. - */ - /* 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. - utils.deprecated('navigator.getUserMedia', - 'navigator.mediaDevices.getUserMedia'); - navigator.mediaDevices.getUserMedia(constraints).then(onSuccess, onError); - }; -}; - -},{"../utils":13}],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. - */ -'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. - if ('generateCertificate' in window.RTCPeerConnection) { - Object.defineProperty(window.RTCPeerConnection, 'generateCertificate', { - get: function() { - return OrigPeerConnection.generateCertificate; - } - }); - } - }, - shimTrackEventTransceiver: function(window) { - // Add event.transceiver member over deprecated event.receiver - if (typeof window === 'object' && window.RTCPeerConnection && - ('receiver' in window.RTCTrackEvent.prototype) && - // can't check 'transceiver' in window.RTCTrackEvent.prototype, as it is - // defined for some reason even when window.RTCTransceiver is not. - !window.RTCTransceiver) { - Object.defineProperty(window.RTCTrackEvent.prototype, 'transceiver', { - get: function() { - return {receiver: this.receiver}; - } - }); - } - }, - - shimCreateOfferLegacy: function(window) { - var origCreateOffer = window.RTCPeerConnection.prototype.createOffer; - window.RTCPeerConnection.prototype.createOffer = function(offerOptions) { - var pc = this; - if (offerOptions) { - var audioTransceiver = pc.getTransceivers().find(function(transceiver) { - return transceiver.sender.track && - transceiver.sender.track.kind === 'audio'; - }); - if (offerOptions.offerToReceiveAudio === false && audioTransceiver) { - if (audioTransceiver.direction === 'sendrecv') { - audioTransceiver.setDirection('sendonly'); - } else if (audioTransceiver.direction === 'recvonly') { - audioTransceiver.setDirection('inactive'); - } - } else if (offerOptions.offerToReceiveAudio === true && - !audioTransceiver) { - pc.addTransceiver('audio'); - } - - var videoTransceiver = pc.getTransceivers().find(function(transceiver) { - return transceiver.sender.track && - transceiver.sender.track.kind === 'video'; - }); - if (offerOptions.offerToReceiveVideo === false && videoTransceiver) { - if (videoTransceiver.direction === 'sendrecv') { - videoTransceiver.setDirection('sendonly'); - } else if (videoTransceiver.direction === 'recvonly') { - videoTransceiver.setDirection('inactive'); - } - } else if (offerOptions.offerToReceiveVideo === true && - !videoTransceiver) { - pc.addTransceiver('video'); - } - } - return origCreateOffer.apply(pc, arguments); - }; - } -}; - -// Expose public methods. -module.exports = { - shimCallbacksAPI: safariShim.shimCallbacksAPI, - shimLocalStreamsAPI: safariShim.shimLocalStreamsAPI, - shimRemoteStreamsAPI: safariShim.shimRemoteStreamsAPI, - shimGetUserMedia: safariShim.shimGetUserMedia, - shimRTCIceServerUrls: safariShim.shimRTCIceServerUrls, - shimTrackEventTransceiver: safariShim.shimTrackEventTransceiver, - shimCreateOfferLegacy: safariShim.shimCreateOfferLegacy - // TODO - // shimPeerConnection: safariShim.shimPeerConnection -}; - -},{"../utils":13}],13:[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; - }, - -}; - -// 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) -}; - -},{}]},{},[3])(3) -}); \ No newline at end of file -- cgit v1.2.3