Index: tools/perf/page_sets/webrtc_cases/adapter.js |
diff --git a/tools/perf/page_sets/webrtc_cases/adapter.js b/tools/perf/page_sets/webrtc_cases/adapter.js |
new file mode 100644 |
index 0000000000000000000000000000000000000000..3af94d044c96bbd96e33d9414aef64c275df2472 |
--- /dev/null |
+++ b/tools/perf/page_sets/webrtc_cases/adapter.js |
@@ -0,0 +1,3035 @@ |
+/* |
+ * Copyright 2017 The Chromium Authors. All rights reserved. |
+ * Use of this source code is governed by a BSD-style license that can be |
+ * found in the LICENSE file. |
+ */ |
+(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.adapter = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){ |
+ /* eslint-env node */ |
+'use strict'; |
+ |
+// SDP helpers. |
+var SDPUtils = {}; |
+ |
+// Generate an alphanumeric identifier for cname or mids. |
+// TODO: use UUIDs instead? https://gist.github.com/jed/982883 |
+SDPUtils.generateIdentifier = function() { |
+ return Math.random().toString(36).substr(2, 10); |
+}; |
+ |
+// The RTCP CNAME used by all peerconnections from the same JS. |
+SDPUtils.localCName = SDPUtils.generateIdentifier(); |
+ |
+// Splits SDP into lines, dealing with both CRLF and LF. |
+SDPUtils.splitLines = function(blob) { |
+ return blob.trim().split('\n').map(function(line) { |
+ return line.trim(); |
+ }); |
+}; |
+// Splits SDP into sessionpart and mediasections. Ensures CRLF. |
+SDPUtils.splitSections = function(blob) { |
+ var parts = blob.split('\nm='); |
+ return parts.map(function(part, index) { |
+ return (index > 0 ? 'm=' + part : part).trim() + '\r\n'; |
+ }); |
+}; |
+ |
+// Returns lines that start with a certain prefix. |
+SDPUtils.matchPrefix = function(blob, prefix) { |
+ return SDPUtils.splitLines(blob).filter(function(line) { |
+ return line.indexOf(prefix) === 0; |
+ }); |
+}; |
+ |
+// Parses an ICE candidate line. Sample input: |
+// candidate:702786350 2 udp 41819902 8.8.8.8 60769 typ relay raddr 8.8.8.8 |
+// rport 55996" |
+SDPUtils.parseCandidate = function(line) { |
+ var parts; |
+ // Parse both variants. |
+ if (line.indexOf('a=candidate:') === 0) { |
+ parts = line.substring(12).split(' '); |
+ } else { |
+ parts = line.substring(10).split(' '); |
+ } |
+ |
+ var candidate = { |
+ foundation: parts[0], |
+ component: parts[1], |
+ protocol: parts[2].toLowerCase(), |
+ priority: parseInt(parts[3], 10), |
+ ip: parts[4], |
+ port: parseInt(parts[5], 10), |
+ // skip parts[6] == 'typ' |
+ type: parts[7] |
+ }; |
+ |
+ for (var i = 8; i < parts.length; i += 2) { |
+ switch (parts[i]) { |
+ case 'raddr': |
+ candidate.relatedAddress = parts[i + 1]; |
+ break; |
+ case 'rport': |
+ candidate.relatedPort = parseInt(parts[i + 1], 10); |
+ break; |
+ case 'tcptype': |
+ candidate.tcpType = parts[i + 1]; |
+ break; |
+ default: // Unknown extensions are silently ignored. |
+ 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); |
+ } |
+ return 'candidate:' + sdp.join(' '); |
+}; |
+ |
+// 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 |
+SDPUtils.parseExtmap = function(line) { |
+ var parts = line.substr(9).split(' '); |
+ return { |
+ id: parseInt(parts[0], 10), |
+ uri: parts[1] |
+ }; |
+}; |
+ |
+// Generates a=extmap line from RTCRtpHeaderExtensionParameters or |
+// RTCRtpHeaderExtension. |
+SDPUtils.writeExtmap = function(headerExtension) { |
+ return 'a=extmap:' + (headerExtension.id || headerExtension.preferredId) + |
+ ' ' + 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 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.splitLines(mediaSection); |
+ // Search in session part, too. |
+ lines = lines.concat(SDPUtils.splitLines(sessionpart)); |
+ var fpLine = lines.filter(function(line) { |
+ return line.indexOf('a=fingerprint:') === 0; |
+ })[0].substr(14); |
+ // Note: a=setup line is ignored since we use the 'auto' role. |
+ var dtlsParameters = { |
+ role: 'auto', |
+ fingerprints: [{ |
+ algorithm: fpLine.split(' ')[0], |
+ value: fpLine.split(' ')[1] |
+ }] |
+ }; |
+ return dtlsParameters; |
+}; |
+ |
+// Serializes DTLS parameters to SDP. |
+SDPUtils.writeDtlsParameters = function(params, setupType) { |
+ var sdp = 'a=setup:' + setupType + '\r\n'; |
+ params.fingerprints.forEach(function(fp) { |
+ sdp += 'a=fingerprint:' + fp.algorithm + ' ' + fp.value + '\r\n'; |
+ }); |
+ return sdp; |
+}; |
+// Parses ICE information from SDP media section or sessionpart. |
+// FIXME: for consistency with other functions this should only |
+// get the ice-ufrag and ice-pwd lines as input. |
+SDPUtils.getIceParameters = function(mediaSection, sessionpart) { |
+ var lines = SDPUtils.splitLines(mediaSection); |
+ // Search in session part, too. |
+ lines = lines.concat(SDPUtils.splitLines(sessionpart)); |
+ var iceParameters = { |
+ usernameFragment: lines.filter(function(line) { |
+ return line.indexOf('a=ice-ufrag:') === 0; |
+ })[0].substr(12), |
+ password: lines.filter(function(line) { |
+ return line.indexOf('a=ice-pwd:') === 0; |
+ })[0].substr(10) |
+ }; |
+ return iceParameters; |
+}; |
+ |
+// Serializes ICE parameters to SDP. |
+SDPUtils.writeIceParameters = function(params) { |
+ return 'a=ice-ufrag:' + params.usernameFragment + '\r\n' + |
+ 'a=ice-pwd:' + params.password + '\r\n'; |
+}; |
+ |
+// Parses the SDP media section and returns RTCRtpParameters. |
+SDPUtils.parseRtpParameters = function(mediaSection) { |
+ var description = { |
+ codecs: [], |
+ headerExtensions: [], |
+ fecMechanisms: [], |
+ rtcp: [] |
+ }; |
+ var lines = SDPUtils.splitLines(mediaSection); |
+ var mline = lines[0].split(' '); |
+ for (var i = 3; i < mline.length; i++) { // find all codecs from mline[3..] |
+ var pt = mline[i]; |
+ var rtpmapline = SDPUtils.matchPrefix( |
+ mediaSection, 'a=rtpmap:' + pt + ' ')[0]; |
+ if (rtpmapline) { |
+ var codec = SDPUtils.parseRtpMap(rtpmapline); |
+ var fmtps = SDPUtils.matchPrefix( |
+ mediaSection, 'a=fmtp:' + pt + ' '); |
+ // Only the first a=fmtp:<pt> is considered. |
+ codec.parameters = fmtps.length ? SDPUtils.parseFmtp(fmtps[0]) : {}; |
+ codec.rtcpFeedback = SDPUtils.matchPrefix( |
+ mediaSection, 'a=rtcp-fb:' + pt + ' ') |
+ .map(SDPUtils.parseRtcpFb); |
+ description.codecs.push(codec); |
+ // parse FEC mechanisms from rtpmap lines. |
+ switch (codec.name.toUpperCase()) { |
+ case 'RED': |
+ case 'ULPFEC': |
+ description.fecMechanisms.push(codec.name.toUpperCase()); |
+ break; |
+ default: // only RED and ULPFEC are recognized as FEC mechanisms. |
+ break; |
+ } |
+ } |
+ } |
+ SDPUtils.matchPrefix(mediaSection, 'a=extmap:').forEach(function(line) { |
+ description.headerExtensions.push(SDPUtils.parseExtmap(line)); |
+ }); |
+ // FIXME: parse rtcp. |
+ return description; |
+}; |
+ |
+// Generates parts of the SDP media section describing the capabilities / |
+// parameters. |
+SDPUtils.writeRtpDescription = function(kind, caps) { |
+ var sdp = ''; |
+ |
+ // Build the mline. |
+ sdp += 'm=' + kind + ' '; |
+ sdp += caps.codecs.length > 0 ? '9' : '0'; // reject if no codecs. |
+ sdp += ' UDP/TLS/RTP/SAVPF '; |
+ sdp += caps.codecs.map(function(codec) { |
+ if (codec.preferredPayloadType !== undefined) { |
+ return codec.preferredPayloadType; |
+ } |
+ return codec.payloadType; |
+ }).join(' ') + '\r\n'; |
+ |
+ sdp += 'c=IN IP4 0.0.0.0\r\n'; |
+ sdp += 'a=rtcp:9 IN IP4 0.0.0.0\r\n'; |
+ |
+ // Add a=rtpmap lines for each codec. Also fmtp and rtcp-fb. |
+ caps.codecs.forEach(function(codec) { |
+ sdp += SDPUtils.writeRtpMap(codec); |
+ sdp += SDPUtils.writeFmtp(codec); |
+ sdp += SDPUtils.writeRtcpFb(codec); |
+ }); |
+ var maxptime = 0; |
+ caps.codecs.forEach(function(codec) { |
+ if (codec.maxptime > maxptime) { |
+ maxptime = codec.maxptime; |
+ } |
+ }); |
+ if (maxptime > 0) { |
+ sdp += 'a=maxptime:' + maxptime + '\r\n'; |
+ } |
+ sdp += 'a=rtcp-mux\r\n'; |
+ |
+ caps.headerExtensions.forEach(function(extension) { |
+ sdp += SDPUtils.writeExtmap(extension); |
+ }); |
+ // FIXME: write fecMechanisms. |
+ return sdp; |
+}; |
+ |
+// Parses the SDP media section and returns an array of |
+// RTCRtpEncodingParameters. |
+SDPUtils.parseRtpEncodingParameters = function(mediaSection) { |
+ var encodingParameters = []; |
+ var description = SDPUtils.parseRtpParameters(mediaSection); |
+ var hasRed = description.fecMechanisms.indexOf('RED') !== -1; |
+ var hasUlpfec = description.fecMechanisms.indexOf('ULPFEC') !== -1; |
+ |
+ // filter a=ssrc:... cname:, ignore PlanB-msid |
+ var ssrcs = SDPUtils.matchPrefix(mediaSection, 'a=ssrc:') |
+ .map(function(line) { |
+ return SDPUtils.parseSsrcMedia(line); |
+ }) |
+ .filter(function(parts) { |
+ return parts.attribute === 'cname'; |
+ }); |
+ var primarySsrc = ssrcs.length > 0 && ssrcs[0].ssrc; |
+ var secondarySsrc; |
+ |
+ var flows = SDPUtils.matchPrefix(mediaSection, 'a=ssrc-group:FID') |
+ .map(function(line) { |
+ var parts = line.split(' '); |
+ parts.shift(); |
+ return parts.map(function(part) { |
+ return parseInt(part, 10); |
+ }); |
+ }); |
+ if (flows.length > 0 && flows[0].length > 1 && flows[0][0] === primarySsrc) { |
+ secondarySsrc = flows[0][1]; |
+ } |
+ |
+ description.codecs.forEach(function(codec) { |
+ if (codec.name.toUpperCase() === 'RTX' && codec.parameters.apt) { |
+ var encParam = { |
+ ssrc: primarySsrc, |
+ codecPayloadType: parseInt(codec.parameters.apt, 10), |
+ rtx: { |
+ ssrc: secondarySsrc |
+ } |
+ }; |
+ encodingParameters.push(encParam); |
+ if (hasRed) { |
+ encParam = JSON.parse(JSON.stringify(encParam)); |
+ encParam.fec = { |
+ ssrc: secondarySsrc, |
+ mechanism: hasUlpfec ? 'red+ulpfec' : 'red' |
+ }; |
+ encodingParameters.push(encParam); |
+ } |
+ } |
+ }); |
+ if (encodingParameters.length === 0 && primarySsrc) { |
+ encodingParameters.push({ |
+ ssrc: primarySsrc |
+ }); |
+ } |
+ |
+ // we support both b=AS and b=TIAS but interpret AS as TIAS. |
+ var bandwidth = SDPUtils.matchPrefix(mediaSection, 'b='); |
+ if (bandwidth.length) { |
+ if (bandwidth[0].indexOf('b=TIAS:') === 0) { |
+ bandwidth = parseInt(bandwidth[0].substr(7), 10); |
+ } else if (bandwidth[0].indexOf('b=AS:') === 0) { |
+ bandwidth = parseInt(bandwidth[0].substr(5), 10); |
+ } |
+ encodingParameters.forEach(function(params) { |
+ params.maxBitrate = bandwidth; |
+ }); |
+ } |
+ return encodingParameters; |
+}; |
+ |
+// parses http://draft.ortc.org/#rtcrtcpparameters* |
+SDPUtils.parseRtcpParameters = function(mediaSection) { |
+ var rtcpParameters = {}; |
+ |
+ var cname; |
+ // Gets the first SSRC. Note that with RTX there might be multiple |
+ // SSRCs. |
+ var remoteSsrc = SDPUtils.matchPrefix(mediaSection, 'a=ssrc:') |
+ .map(function(line) { |
+ return SDPUtils.parseSsrcMedia(line); |
+ }) |
+ .filter(function(obj) { |
+ return obj.attribute === 'cname'; |
+ })[0]; |
+ if (remoteSsrc) { |
+ rtcpParameters.cname = remoteSsrc.value; |
+ rtcpParameters.ssrc = remoteSsrc.ssrc; |
+ } |
+ |
+ // Edge uses the compound attribute instead of reducedSize |
+ // compound is !reducedSize |
+ var rsize = SDPUtils.matchPrefix(mediaSection, 'a=rtcp-rsize'); |
+ rtcpParameters.reducedSize = rsize.length > 0; |
+ rtcpParameters.compound = rsize.length === 0; |
+ |
+ // parses the rtcp-mux attrіbute. |
+ // Note that Edge does not support unmuxed RTCP. |
+ var mux = SDPUtils.matchPrefix(mediaSection, 'a=rtcp-mux'); |
+ rtcpParameters.mux = mux.length > 0; |
+ |
+ return rtcpParameters; |
+}; |
+ |
+// parses either a=msid: or a=ssrc:... msid lines an returns |
+// the id of the MediaStream and MediaStreamTrack. |
+SDPUtils.parseMsid = function(mediaSection) { |
+ var parts; |
+ var spec = SDPUtils.matchPrefix(mediaSection, 'a=msid:'); |
+ if (spec.length === 1) { |
+ parts = spec[0].substr(7).split(' '); |
+ return {stream: parts[0], track: parts[1]}; |
+ } |
+ var planB = SDPUtils.matchPrefix(mediaSection, 'a=ssrc:') |
+ .map(function(line) { |
+ return SDPUtils.parseSsrcMedia(line); |
+ }) |
+ .filter(function(parts) { |
+ return parts.attribute === 'msid'; |
+ }); |
+ if (planB.length > 0) { |
+ parts = planB[0].value.split(' '); |
+ return {stream: parts[0], track: parts[1]}; |
+ } |
+}; |
+ |
+SDPUtils.writeSessionBoilerplate = function() { |
+ // FIXME: sess-id should be an NTP timestamp. |
+ return 'v=0\r\n' + |
+ 'o=thisisadapterortc 8169639915646943137 2 IN IP4 127.0.0.1\r\n' + |
+ 's=-\r\n' + |
+ 't=0 0\r\n'; |
+}; |
+ |
+SDPUtils.writeMediaSection = function(transceiver, caps, type, stream) { |
+ var sdp = SDPUtils.writeRtpDescription(transceiver.kind, caps); |
+ |
+ // Map ICE parameters (ufrag, pwd) to SDP. |
+ sdp += SDPUtils.writeIceParameters( |
+ transceiver.iceGatherer.getLocalParameters()); |
+ |
+ // Map DTLS parameters to SDP. |
+ sdp += SDPUtils.writeDtlsParameters( |
+ transceiver.dtlsTransport.getLocalParameters(), |
+ type === 'offer' ? 'actpass' : 'active'); |
+ |
+ sdp += 'a=mid:' + transceiver.mid + '\r\n'; |
+ |
+ if (transceiver.rtpSender && transceiver.rtpReceiver) { |
+ sdp += 'a=sendrecv\r\n'; |
+ } else if (transceiver.rtpSender) { |
+ sdp += 'a=sendonly\r\n'; |
+ } else if (transceiver.rtpReceiver) { |
+ sdp += 'a=recvonly\r\n'; |
+ } else { |
+ sdp += 'a=inactive\r\n'; |
+ } |
+ |
+ if (transceiver.rtpSender) { |
+ // spec. |
+ var msid = 'msid:' + stream.id + ' ' + |
+ transceiver.rtpSender.track.id + '\r\n'; |
+ sdp += 'a=' + msid; |
+ |
+ // for Chrome. |
+ sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].ssrc + |
+ ' ' + msid; |
+ if (transceiver.sendEncodingParameters[0].rtx) { |
+ sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].rtx.ssrc + |
+ ' ' + msid; |
+ sdp += 'a=ssrc-group:FID ' + |
+ transceiver.sendEncodingParameters[0].ssrc + ' ' + |
+ transceiver.sendEncodingParameters[0].rtx.ssrc + |
+ '\r\n'; |
+ } |
+ } |
+ // FIXME: this should be written by writeRtpDescription. |
+ sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].ssrc + |
+ ' cname:' + SDPUtils.localCName + '\r\n'; |
+ if (transceiver.rtpSender && transceiver.sendEncodingParameters[0].rtx) { |
+ sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].rtx.ssrc + |
+ ' cname:' + SDPUtils.localCName + '\r\n'; |
+ } |
+ return sdp; |
+}; |
+ |
+// Gets the direction from the mediaSection or the sessionpart. |
+SDPUtils.getDirection = function(mediaSection, sessionpart) { |
+ // Look for sendrecv, sendonly, recvonly, inactive, default to sendrecv. |
+ var lines = SDPUtils.splitLines(mediaSection); |
+ for (var i = 0; i < lines.length; i++) { |
+ switch (lines[i]) { |
+ case 'a=sendrecv': |
+ case 'a=sendonly': |
+ case 'a=recvonly': |
+ case 'a=inactive': |
+ return lines[i].substr(2); |
+ default: |
+ // FIXME: What should happen here? |
+ } |
+ } |
+ if (sessionpart) { |
+ return SDPUtils.getDirection(sessionpart); |
+ } |
+ return 'sendrecv'; |
+}; |
+ |
+SDPUtils.getKind = function(mediaSection) { |
+ var lines = SDPUtils.splitLines(mediaSection); |
+ var mline = lines[0].split(' '); |
+ return mline[0].substr(2); |
+}; |
+ |
+SDPUtils.isRejected = function(mediaSection) { |
+ return mediaSection.split(' ', 2)[1] === '0'; |
+}; |
+ |
+// Expose public methods. |
+module.exports = SDPUtils; |
+ |
+},{}],2:[function(require,module,exports){ |
+/* |
+ * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved. |
+ * |
+ * Use of this source code is governed by a BSD-style license |
+ * that can be found in the LICENSE file in the root of the source |
+ * tree. |
+ */ |
+ /* eslint-env node */ |
+ |
+'use strict'; |
+ |
+// Shimming starts here. |
+(function() { |
+ // Utils. |
+ var utils = require('./utils'); |
+ var logging = utils.log; |
+ var browserDetails = utils.browserDetails; |
+ // Export to the adapter global object visible in the browser. |
+ module.exports.browserDetails = browserDetails; |
+ module.exports.extractVersion = utils.extractVersion; |
+ module.exports.disableLog = utils.disableLog; |
+ |
+ // Uncomment the line below if you want logging to occur, including logging |
+ // for the switch statement below. Can also be turned on in the browser via |
+ // adapter.disableLog(false), but then logging from the switch statement below |
+ // will not appear. |
+ // require('./utils').disableLog(false); |
+ |
+ // Browser shims. |
+ var chromeShim = require('./chrome/chrome_shim') || null; |
+ var edgeShim = require('./edge/edge_shim') || null; |
+ var firefoxShim = require('./firefox/firefox_shim') || null; |
+ var safariShim = require('./safari/safari_shim') || null; |
+ |
+ // Shim browser if found. |
+ switch (browserDetails.browser) { |
+ case 'chrome': |
+ if (!chromeShim || !chromeShim.shimPeerConnection) { |
+ logging('Chrome shim is not included in this adapter release.'); |
+ return; |
+ } |
+ logging('adapter.js shimming chrome.'); |
+ // Export to the adapter global object visible in the browser. |
+ module.exports.browserShim = chromeShim; |
+ |
+ chromeShim.shimGetUserMedia(); |
+ chromeShim.shimMediaStream(); |
+ utils.shimCreateObjectURL(); |
+ chromeShim.shimSourceObject(); |
+ chromeShim.shimPeerConnection(); |
+ chromeShim.shimOnTrack(); |
+ chromeShim.shimGetSendersWithDtmf(); |
+ break; |
+ case 'firefox': |
+ if (!firefoxShim || !firefoxShim.shimPeerConnection) { |
+ logging('Firefox shim is not included in this adapter release.'); |
+ return; |
+ } |
+ logging('adapter.js shimming firefox.'); |
+ // Export to the adapter global object visible in the browser. |
+ module.exports.browserShim = firefoxShim; |
+ |
+ firefoxShim.shimGetUserMedia(); |
+ utils.shimCreateObjectURL(); |
+ firefoxShim.shimSourceObject(); |
+ firefoxShim.shimPeerConnection(); |
+ firefoxShim.shimOnTrack(); |
+ break; |
+ case 'edge': |
+ if (!edgeShim || !edgeShim.shimPeerConnection) { |
+ logging('MS edge shim is not included in this adapter release.'); |
+ return; |
+ } |
+ logging('adapter.js shimming edge.'); |
+ // Export to the adapter global object visible in the browser. |
+ module.exports.browserShim = edgeShim; |
+ |
+ edgeShim.shimGetUserMedia(); |
+ utils.shimCreateObjectURL(); |
+ edgeShim.shimPeerConnection(); |
+ break; |
+ case 'safari': |
+ if (!safariShim) { |
+ logging('Safari shim is not included in this adapter release.'); |
+ return; |
+ } |
+ logging('adapter.js shimming safari.'); |
+ // Export to the adapter global object visible in the browser. |
+ module.exports.browserShim = safariShim; |
+ |
+ safariShim.shimGetUserMedia(); |
+ break; |
+ default: |
+ logging('Unsupported browser!'); |
+ } |
+})(); |
+ |
+},{"./chrome/chrome_shim":3,"./edge/edge_shim":5,"./firefox/firefox_shim":7,"./safari/safari_shim":9,"./utils":10}],3:[function(require,module,exports){ |
+ |
+/* |
+ * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved. |
+ * |
+ * Use of this source code is governed by a BSD-style license |
+ * that can be found in the LICENSE file in the root of the source |
+ * tree. |
+ */ |
+ /* eslint-env node */ |
+'use strict'; |
+var logging = require('../utils.js').log; |
+var browserDetails = require('../utils.js').browserDetails; |
+ |
+var chromeShim = { |
+ shimMediaStream: function() { |
+ window.MediaStream = window.MediaStream || window.webkitMediaStream; |
+ }, |
+ |
+ shimOnTrack: function() { |
+ if (typeof window === 'object' && window.RTCPeerConnection && !('ontrack' in |
+ window.RTCPeerConnection.prototype)) { |
+ Object.defineProperty(window.RTCPeerConnection.prototype, 'ontrack', { |
+ get: function() { |
+ return this._ontrack; |
+ }, |
+ set: function(f) { |
+ var self = this; |
+ if (this._ontrack) { |
+ this.removeEventListener('track', this._ontrack); |
+ this.removeEventListener('addstream', this._ontrackpoly); |
+ } |
+ this.addEventListener('track', this._ontrack = f); |
+ this.addEventListener('addstream', this._ontrackpoly = function(e) { |
+ // onaddstream does not fire when a track is added to an existing |
+ // stream. But stream.onaddtrack is implemented so we use that. |
+ e.stream.addEventListener('addtrack', function(te) { |
+ var event = new Event('track'); |
+ event.track = te.track; |
+ event.receiver = {track: te.track}; |
+ event.streams = [e.stream]; |
+ self.dispatchEvent(event); |
+ }); |
+ e.stream.getTracks().forEach(function(track) { |
+ var event = new Event('track'); |
+ event.track = track; |
+ event.receiver = {track: track}; |
+ event.streams = [e.stream]; |
+ this.dispatchEvent(event); |
+ }.bind(this)); |
+ }.bind(this)); |
+ } |
+ }); |
+ } |
+ }, |
+ |
+ shimGetSendersWithDtmf: function() { |
+ if (typeof window === 'object' && window.RTCPeerConnection && |
+ !('getSenders' in RTCPeerConnection.prototype) && |
+ 'createDTMFSender' in RTCPeerConnection.prototype) { |
+ RTCPeerConnection.prototype.getSenders = function() { |
+ return this._senders; |
+ }; |
+ var origAddStream = RTCPeerConnection.prototype.addStream; |
+ var origRemoveStream = RTCPeerConnection.prototype.removeStream; |
+ |
+ RTCPeerConnection.prototype.addStream = function(stream) { |
+ var pc = this; |
+ pc._senders = pc._senders || []; |
+ origAddStream.apply(pc, [stream]); |
+ stream.getTracks().forEach(function(track) { |
+ pc._senders.push({ |
+ track: track, |
+ get dtmf() { |
+ if (this._dtmf === undefined) { |
+ if (track.kind === 'audio') { |
+ this._dtmf = pc.createDTMFSender(track); |
+ } else { |
+ this._dtmf = null; |
+ } |
+ } |
+ return this._dtmf; |
+ } |
+ }); |
+ }); |
+ }; |
+ |
+ RTCPeerConnection.prototype.removeStream = function(stream) { |
+ var pc = this; |
+ pc._senders = pc._senders || []; |
+ origRemoveStream.apply(pc, [stream]); |
+ stream.getTracks().forEach(function(track) { |
+ var sender = pc._senders.find(function(s) { |
+ return s.track === track; |
+ }); |
+ if (sender) { |
+ pc._senders.splice(pc._senders.indexOf(sender), 1); // remove sender |
+ } |
+ }); |
+ }; |
+ } |
+ }, |
+ |
+ shimSourceObject: function() { |
+ if (typeof window === 'object') { |
+ if (window.HTMLMediaElement && |
+ !('srcObject' in window.HTMLMediaElement.prototype)) { |
+ // Shim the srcObject property, once, when HTMLMediaElement is found. |
+ Object.defineProperty(window.HTMLMediaElement.prototype, 'srcObject', { |
+ get: function() { |
+ return this._srcObject; |
+ }, |
+ set: function(stream) { |
+ var self = this; |
+ // Use _srcObject as a private property for this shim |
+ this._srcObject = stream; |
+ if (this.src) { |
+ URL.revokeObjectURL(this.src); |
+ } |
+ |
+ if (!stream) { |
+ this.src = ''; |
+ return undefined; |
+ } |
+ this.src = URL.createObjectURL(stream); |
+ // We need to recreate the blob url when a track is added or |
+ // removed. Doing it manually since we want to avoid a recursion. |
+ stream.addEventListener('addtrack', function() { |
+ if (self.src) { |
+ URL.revokeObjectURL(self.src); |
+ } |
+ self.src = URL.createObjectURL(stream); |
+ }); |
+ stream.addEventListener('removetrack', function() { |
+ if (self.src) { |
+ URL.revokeObjectURL(self.src); |
+ } |
+ self.src = URL.createObjectURL(stream); |
+ }); |
+ } |
+ }); |
+ } |
+ } |
+ }, |
+ |
+ shimPeerConnection: function() { |
+ // The RTCPeerConnection object. |
+ if (!window.RTCPeerConnection) { |
+ window.RTCPeerConnection = function(pcConfig, pcConstraints) { |
+ // Translate iceTransportPolicy to iceTransports, |
+ // see https://code.google.com/p/webrtc/issues/detail?id=4869 |
+ // this was fixed in M56 along with unprefixing RTCPeerConnection. |
+ logging('PeerConnection'); |
+ if (pcConfig && pcConfig.iceTransportPolicy) { |
+ pcConfig.iceTransports = pcConfig.iceTransportPolicy; |
+ } |
+ |
+ return new webkitRTCPeerConnection(pcConfig, pcConstraints); |
+ }; |
+ window.RTCPeerConnection.prototype = webkitRTCPeerConnection.prototype; |
+ // wrap static methods. Currently just generateCertificate. |
+ if (webkitRTCPeerConnection.generateCertificate) { |
+ Object.defineProperty(window.RTCPeerConnection, 'generateCertificate', { |
+ get: function() { |
+ return webkitRTCPeerConnection.generateCertificate; |
+ } |
+ }); |
+ } |
+ } |
+ |
+ var origGetStats = RTCPeerConnection.prototype.getStats; |
+ RTCPeerConnection.prototype.getStats = function(selector, |
+ successCallback, errorCallback) { |
+ var self = this; |
+ var args = arguments; |
+ |
+ // If selector is a function then we are in the old style stats so just |
+ // pass back the original getStats format to avoid breaking old users. |
+ if (arguments.length > 0 && typeof selector === 'function') { |
+ return origGetStats.apply(this, arguments); |
+ } |
+ |
+ // When spec-style getStats is supported, return those when called with |
+ // either no arguments or the selector argument is null. |
+ if (origGetStats.length === 0 && (arguments.length === 0 || |
+ typeof arguments[0] !== 'function')) { |
+ return origGetStats.apply(this, []); |
+ } |
+ |
+ var fixChromeStats_ = function(response) { |
+ var standardReport = {}; |
+ var reports = response.result(); |
+ reports.forEach(function(report) { |
+ var standardStats = { |
+ id: report.id, |
+ timestamp: report.timestamp, |
+ type: { |
+ localcandidate: 'local-candidate', |
+ remotecandidate: 'remote-candidate' |
+ }[report.type] || report.type |
+ }; |
+ report.names().forEach(function(name) { |
+ standardStats[name] = report.stat(name); |
+ }); |
+ standardReport[standardStats.id] = standardStats; |
+ }); |
+ |
+ return standardReport; |
+ }; |
+ |
+ // shim getStats with maplike support |
+ var makeMapStats = function(stats) { |
+ return new Map(Object.keys(stats).map(function(key) { |
+ return[key, stats[key]]; |
+ })); |
+ }; |
+ |
+ if (arguments.length >= 2) { |
+ var successCallbackWrapper_ = function(response) { |
+ args[1](makeMapStats(fixChromeStats_(response))); |
+ }; |
+ |
+ return origGetStats.apply(this, [successCallbackWrapper_, |
+ arguments[0]]); |
+ } |
+ |
+ // promise-support |
+ return new Promise(function(resolve, reject) { |
+ origGetStats.apply(self, [ |
+ function(response) { |
+ resolve(makeMapStats(fixChromeStats_(response))); |
+ }, reject]); |
+ }).then(successCallback, errorCallback); |
+ }; |
+ |
+ // add promise support -- natively available in Chrome 51 |
+ if (browserDetails.version < 51) { |
+ ['setLocalDescription', 'setRemoteDescription', 'addIceCandidate'] |
+ .forEach(function(method) { |
+ var nativeMethod = RTCPeerConnection.prototype[method]; |
+ RTCPeerConnection.prototype[method] = function() { |
+ var args = arguments; |
+ var self = this; |
+ var promise = new Promise(function(resolve, reject) { |
+ nativeMethod.apply(self, [args[0], resolve, reject]); |
+ }); |
+ if (args.length < 2) { |
+ return promise; |
+ } |
+ return promise.then(function() { |
+ args[1].apply(null, []); |
+ }, |
+ function(err) { |
+ if (args.length >= 3) { |
+ args[2].apply(null, [err]); |
+ } |
+ }); |
+ }; |
+ }); |
+ } |
+ |
+ // promise support for createOffer and createAnswer. Available (without |
+ // bugs) since M52: crbug/619289 |
+ if (browserDetails.version < 52) { |
+ ['createOffer', 'createAnswer'].forEach(function(method) { |
+ var nativeMethod = RTCPeerConnection.prototype[method]; |
+ RTCPeerConnection.prototype[method] = function() { |
+ var self = this; |
+ if (arguments.length < 1 || (arguments.length === 1 && |
+ typeof arguments[0] === 'object')) { |
+ var opts = arguments.length === 1 ? arguments[0] : undefined; |
+ return new Promise(function(resolve, reject) { |
+ nativeMethod.apply(self, [resolve, reject, opts]); |
+ }); |
+ } |
+ return nativeMethod.apply(this, arguments); |
+ }; |
+ }); |
+ } |
+ |
+ // shim implicit creation of RTCSessionDescription/RTCIceCandidate |
+ ['setLocalDescription', 'setRemoteDescription', 'addIceCandidate'] |
+ .forEach(function(method) { |
+ var nativeMethod = RTCPeerConnection.prototype[method]; |
+ RTCPeerConnection.prototype[method] = function() { |
+ arguments[0] = new ((method === 'addIceCandidate') ? |
+ RTCIceCandidate : RTCSessionDescription)(arguments[0]); |
+ return nativeMethod.apply(this, arguments); |
+ }; |
+ }); |
+ |
+ // support for addIceCandidate(null or undefined) |
+ var nativeAddIceCandidate = |
+ RTCPeerConnection.prototype.addIceCandidate; |
+ RTCPeerConnection.prototype.addIceCandidate = function() { |
+ if (!arguments[0]) { |
+ if (arguments[1]) { |
+ arguments[1].apply(null); |
+ } |
+ return Promise.resolve(); |
+ } |
+ return nativeAddIceCandidate.apply(this, arguments); |
+ }; |
+ } |
+}; |
+ |
+ |
+// Expose public methods. |
+module.exports = { |
+ shimMediaStream: chromeShim.shimMediaStream, |
+ shimOnTrack: chromeShim.shimOnTrack, |
+ shimGetSendersWithDtmf: chromeShim.shimGetSendersWithDtmf, |
+ shimSourceObject: chromeShim.shimSourceObject, |
+ shimPeerConnection: chromeShim.shimPeerConnection, |
+ shimGetUserMedia: require('./getusermedia') |
+}; |
+ |
+},{"../utils.js":10,"./getusermedia":4}],4:[function(require,module,exports){ |
+/* |
+ * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved. |
+ * |
+ * Use of this source code is governed by a BSD-style license |
+ * that can be found in the LICENSE file in the root of the source |
+ * tree. |
+ */ |
+ /* eslint-env node */ |
+'use strict'; |
+var logging = require('../utils.js').log; |
+var browserDetails = require('../utils.js').browserDetails; |
+ |
+// Expose public methods. |
+module.exports = function() { |
+ var constraintsToChrome_ = function(c) { |
+ if (typeof c !== 'object' || c.mandatory || c.optional) { |
+ return c; |
+ } |
+ var cc = {}; |
+ Object.keys(c).forEach(function(key) { |
+ if (key === 'require' || key === 'advanced' || key === 'mediaSource') { |
+ return; |
+ } |
+ var r = (typeof c[key] === 'object') ? c[key] : {ideal: c[key]}; |
+ if (r.exact !== undefined && typeof r.exact === 'number') { |
+ r.min = r.max = r.exact; |
+ } |
+ var oldname_ = function(prefix, name) { |
+ if (prefix) { |
+ return prefix + name.charAt(0).toUpperCase() + name.slice(1); |
+ } |
+ return (name === 'deviceId') ? 'sourceId' : name; |
+ }; |
+ if (r.ideal !== undefined) { |
+ cc.optional = cc.optional || []; |
+ var oc = {}; |
+ if (typeof r.ideal === 'number') { |
+ oc[oldname_('min', key)] = r.ideal; |
+ cc.optional.push(oc); |
+ oc = {}; |
+ oc[oldname_('max', key)] = r.ideal; |
+ cc.optional.push(oc); |
+ } else { |
+ oc[oldname_('', key)] = r.ideal; |
+ cc.optional.push(oc); |
+ } |
+ } |
+ if (r.exact !== undefined && typeof r.exact !== 'number') { |
+ cc.mandatory = cc.mandatory || {}; |
+ cc.mandatory[oldname_('', key)] = r.exact; |
+ } else { |
+ ['min', 'max'].forEach(function(mix) { |
+ if (r[mix] !== undefined) { |
+ cc.mandatory = cc.mandatory || {}; |
+ cc.mandatory[oldname_(mix, key)] = r[mix]; |
+ } |
+ }); |
+ } |
+ }); |
+ if (c.advanced) { |
+ cc.optional = (cc.optional || []).concat(c.advanced); |
+ } |
+ return cc; |
+ }; |
+ |
+ var shimConstraints_ = function(constraints, func) { |
+ constraints = JSON.parse(JSON.stringify(constraints)); |
+ if (constraints && constraints.audio) { |
+ constraints.audio = constraintsToChrome_(constraints.audio); |
+ } |
+ if (constraints && typeof constraints.video === 'object') { |
+ // Shim facingMode for mobile, where it defaults to "user". |
+ var face = constraints.video.facingMode; |
+ face = face && ((typeof face === 'object') ? face : {ideal: face}); |
+ var getSupportedFacingModeLies = browserDetails.version < 59; |
+ |
+ 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; |
+ if (face.exact === 'environment' || face.ideal === 'environment') { |
+ // Look for "back" in label, or use last cam (typically back cam). |
+ return navigator.mediaDevices.enumerateDevices() |
+ .then(function(devices) { |
+ devices = devices.filter(function(d) { |
+ return d.kind === 'videoinput'; |
+ }); |
+ var back = devices.find(function(d) { |
+ return d.label.toLowerCase().indexOf('back') !== -1; |
+ }) || (devices.length && devices[devices.length - 1]); |
+ if (back) { |
+ constraints.video.deviceId = face.exact ? {exact: back.deviceId} : |
+ {ideal: back.deviceId}; |
+ } |
+ constraints.video = constraintsToChrome_(constraints.video); |
+ logging('chrome: ' + JSON.stringify(constraints)); |
+ return func(constraints); |
+ }); |
+ } |
+ } |
+ constraints.video = constraintsToChrome_(constraints.video); |
+ } |
+ logging('chrome: ' + JSON.stringify(constraints)); |
+ return func(constraints); |
+ }; |
+ |
+ var shimError_ = function(e) { |
+ return { |
+ name: { |
+ PermissionDeniedError: 'NotAllowedError', |
+ ConstraintNotSatisfiedError: 'OverconstrainedError' |
+ }[e.name] || e.name, |
+ message: e.message, |
+ constraint: e.constraintName, |
+ toString: function() { |
+ return this.name + (this.message && ': ') + this.message; |
+ } |
+ }; |
+ }; |
+ |
+ var getUserMedia_ = function(constraints, onSuccess, onError) { |
+ shimConstraints_(constraints, function(c) { |
+ navigator.webkitGetUserMedia(c, onSuccess, function(e) { |
+ onError(shimError_(e)); |
+ }); |
+ }); |
+ }; |
+ |
+ navigator.getUserMedia = getUserMedia_; |
+ |
+ // Returns the result of getUserMedia as a Promise. |
+ var getUserMediaPromise_ = function(constraints) { |
+ return new Promise(function(resolve, reject) { |
+ navigator.getUserMedia(constraints, resolve, reject); |
+ }); |
+ }; |
+ |
+ if (!navigator.mediaDevices) { |
+ navigator.mediaDevices = { |
+ getUserMedia: getUserMediaPromise_, |
+ enumerateDevices: function() { |
+ return new Promise(function(resolve) { |
+ var kinds = {audio: 'audioinput', video: 'videoinput'}; |
+ return MediaStreamTrack.getSources(function(devices) { |
+ resolve(devices.map(function(device) { |
+ return {label: device.label, |
+ kind: kinds[device.kind], |
+ deviceId: device.id, |
+ groupId: ''}; |
+ })); |
+ }); |
+ }); |
+ }, |
+ getSupportedConstraints: function() { |
+ return { |
+ deviceId: true, echoCancellation: true, facingMode: true, |
+ frameRate: true, height: true, width: true |
+ }; |
+ } |
+ }; |
+ } |
+ |
+ // A shim for getUserMedia method on the mediaDevices object. |
+ // TODO(KaptenJansson) remove once implemented in Chrome stable. |
+ if (!navigator.mediaDevices.getUserMedia) { |
+ navigator.mediaDevices.getUserMedia = function(constraints) { |
+ return getUserMediaPromise_(constraints); |
+ }; |
+ } else { |
+ // Even though Chrome 45 has navigator.mediaDevices and a getUserMedia |
+ // function which returns a Promise, it does not accept spec-style |
+ // constraints. |
+ var origGetUserMedia = navigator.mediaDevices.getUserMedia. |
+ bind(navigator.mediaDevices); |
+ navigator.mediaDevices.getUserMedia = function(cs) { |
+ return shimConstraints_(cs, function(c) { |
+ return origGetUserMedia(c).then(function(stream) { |
+ if (c.audio && !stream.getAudioTracks().length || |
+ c.video && !stream.getVideoTracks().length) { |
+ stream.getTracks().forEach(function(track) { |
+ track.stop(); |
+ }); |
+ throw new DOMException('', 'NotFoundError'); |
+ } |
+ return stream; |
+ }, function(e) { |
+ return Promise.reject(shimError_(e)); |
+ }); |
+ }); |
+ }; |
+ } |
+ |
+ // Dummy devicechange event methods. |
+ // TODO(KaptenJansson) remove once implemented in Chrome stable. |
+ if (typeof navigator.mediaDevices.addEventListener === 'undefined') { |
+ navigator.mediaDevices.addEventListener = function() { |
+ logging('Dummy mediaDevices.addEventListener called.'); |
+ }; |
+ } |
+ if (typeof navigator.mediaDevices.removeEventListener === 'undefined') { |
+ navigator.mediaDevices.removeEventListener = function() { |
+ logging('Dummy mediaDevices.removeEventListener called.'); |
+ }; |
+ } |
+}; |
+ |
+},{"../utils.js":10}],5:[function(require,module,exports){ |
+/* |
+ * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved. |
+ * |
+ * Use of this source code is governed by a BSD-style license |
+ * that can be found in the LICENSE file in the root of the source |
+ * tree. |
+ */ |
+ /* eslint-env node */ |
+'use strict'; |
+ |
+var SDPUtils = require('sdp'); |
+var browserDetails = require('../utils').browserDetails; |
+ |
+// sort tracks such that they follow an a-v-a-v... |
+// pattern. |
+function sortTracks(tracks) { |
+ var audioTracks = tracks.filter(function(track) { |
+ return track.kind === 'audio'; |
+ }); |
+ var videoTracks = tracks.filter(function(track) { |
+ return track.kind === 'video'; |
+ }); |
+ tracks = []; |
+ while (audioTracks.length || videoTracks.length) { |
+ if (audioTracks.length) { |
+ tracks.push(audioTracks.shift()); |
+ } |
+ if (videoTracks.length) { |
+ tracks.push(videoTracks.shift()); |
+ } |
+ } |
+ return tracks; |
+} |
+ |
+// Edge does not like |
+// 1) stun: |
+// 2) turn: that does not have all of turn:host:port?transport=udp |
+// 3) turn: with ipv6 addresses |
+// 4) turn: occurring muliple times |
+function filterIceServers(iceServers) { |
+ var hasTurn = false; |
+ iceServers = JSON.parse(JSON.stringify(iceServers)); |
+ return iceServers.filter(function(server) { |
+ if (server && (server.urls || server.url)) { |
+ var urls = server.urls || server.url; |
+ var isString = typeof urls === 'string'; |
+ if (isString) { |
+ urls = [urls]; |
+ } |
+ urls = urls.filter(function(url) { |
+ var validTurn = url.indexOf('turn:') === 0 && |
+ url.indexOf('transport=udp') !== -1 && |
+ url.indexOf('turn:[') === -1 && |
+ !hasTurn; |
+ |
+ if (validTurn) { |
+ hasTurn = true; |
+ return true; |
+ } |
+ return url.indexOf('stun:') === 0 && |
+ browserDetails.version >= 14393; |
+ }); |
+ |
+ delete server.url; |
+ server.urls = isString ? urls[0] : urls; |
+ return !!urls.length; |
+ } |
+ return false; |
+ }); |
+} |
+ |
+var edgeShim = { |
+ shimPeerConnection: function() { |
+ if (window.RTCIceGatherer) { |
+ // ORTC defines an RTCIceCandidate object but no constructor. |
+ // Not implemented in Edge. |
+ if (!window.RTCIceCandidate) { |
+ window.RTCIceCandidate = function(args) { |
+ return args; |
+ }; |
+ } |
+ // ORTC does not have a session description object but |
+ // other browsers (i.e. Chrome) that will support both PC and ORTC |
+ // in the future might have this defined already. |
+ if (!window.RTCSessionDescription) { |
+ window.RTCSessionDescription = function(args) { |
+ return args; |
+ }; |
+ } |
+ // this adds an additional event listener to MediaStrackTrack that signals |
+ // when a tracks enabled property was changed. Workaround for a bug in |
+ // addStream, see below. No longer required in 15025+ |
+ if (browserDetails.version < 15025) { |
+ var origMSTEnabled = Object.getOwnPropertyDescriptor( |
+ MediaStreamTrack.prototype, 'enabled'); |
+ Object.defineProperty(MediaStreamTrack.prototype, 'enabled', { |
+ set: function(value) { |
+ origMSTEnabled.set.call(this, value); |
+ var ev = new Event('enabled'); |
+ ev.enabled = value; |
+ this.dispatchEvent(ev); |
+ } |
+ }); |
+ } |
+ } |
+ |
+ window.RTCPeerConnection = function(config) { |
+ var self = this; |
+ |
+ var _eventTarget = document.createDocumentFragment(); |
+ ['addEventListener', 'removeEventListener', 'dispatchEvent'] |
+ .forEach(function(method) { |
+ self[method] = _eventTarget[method].bind(_eventTarget); |
+ }); |
+ |
+ this.onicecandidate = null; |
+ this.onaddstream = null; |
+ this.ontrack = null; |
+ this.onremovestream = null; |
+ this.onsignalingstatechange = null; |
+ this.oniceconnectionstatechange = null; |
+ this.onicegatheringstatechange = null; |
+ this.onnegotiationneeded = null; |
+ this.ondatachannel = null; |
+ |
+ this.localStreams = []; |
+ this.remoteStreams = []; |
+ this.getLocalStreams = function() { |
+ return self.localStreams; |
+ }; |
+ this.getRemoteStreams = function() { |
+ return self.remoteStreams; |
+ }; |
+ |
+ this.localDescription = new RTCSessionDescription({ |
+ type: '', |
+ sdp: '' |
+ }); |
+ this.remoteDescription = new RTCSessionDescription({ |
+ type: '', |
+ sdp: '' |
+ }); |
+ this.signalingState = 'stable'; |
+ this.iceConnectionState = 'new'; |
+ this.iceGatheringState = 'new'; |
+ |
+ this.iceOptions = { |
+ gatherPolicy: 'all', |
+ iceServers: [] |
+ }; |
+ if (config && config.iceTransportPolicy) { |
+ switch (config.iceTransportPolicy) { |
+ case 'all': |
+ case 'relay': |
+ this.iceOptions.gatherPolicy = config.iceTransportPolicy; |
+ break; |
+ default: |
+ // don't set iceTransportPolicy. |
+ break; |
+ } |
+ } |
+ this.usingBundle = config && config.bundlePolicy === 'max-bundle'; |
+ |
+ if (config && config.iceServers) { |
+ this.iceOptions.iceServers = filterIceServers(config.iceServers); |
+ } |
+ this._config = config; |
+ |
+ // per-track iceGathers, iceTransports, dtlsTransports, rtpSenders, ... |
+ // everything that is needed to describe a SDP m-line. |
+ this.transceivers = []; |
+ |
+ // since the iceGatherer is currently created in createOffer but we |
+ // must not emit candidates until after setLocalDescription we buffer |
+ // them in this array. |
+ this._localIceCandidatesBuffer = []; |
+ }; |
+ |
+ window.RTCPeerConnection.prototype._emitGatheringStateChange = function() { |
+ var event = new Event('icegatheringstatechange'); |
+ this.dispatchEvent(event); |
+ if (this.onicegatheringstatechange !== null) { |
+ this.onicegatheringstatechange(event); |
+ } |
+ }; |
+ |
+ window.RTCPeerConnection.prototype._emitBufferedCandidates = function() { |
+ var self = this; |
+ var sections = SDPUtils.splitSections(self.localDescription.sdp); |
+ // FIXME: need to apply ice candidates in a way which is async but |
+ // in-order |
+ this._localIceCandidatesBuffer.forEach(function(event) { |
+ var end = !event.candidate || Object.keys(event.candidate).length === 0; |
+ if (end) { |
+ for (var j = 1; j < sections.length; j++) { |
+ if (sections[j].indexOf('\r\na=end-of-candidates\r\n') === -1) { |
+ sections[j] += 'a=end-of-candidates\r\n'; |
+ } |
+ } |
+ } else { |
+ sections[event.candidate.sdpMLineIndex + 1] += |
+ 'a=' + event.candidate.candidate + '\r\n'; |
+ } |
+ self.localDescription.sdp = sections.join(''); |
+ self.dispatchEvent(event); |
+ if (self.onicecandidate !== null) { |
+ self.onicecandidate(event); |
+ } |
+ if (!event.candidate && self.iceGatheringState !== 'complete') { |
+ var complete = self.transceivers.every(function(transceiver) { |
+ return transceiver.iceGatherer && |
+ transceiver.iceGatherer.state === 'completed'; |
+ }); |
+ if (complete && self.iceGatheringStateChange !== 'complete') { |
+ self.iceGatheringState = 'complete'; |
+ self._emitGatheringStateChange(); |
+ } |
+ } |
+ }); |
+ this._localIceCandidatesBuffer = []; |
+ }; |
+ |
+ window.RTCPeerConnection.prototype.getConfiguration = function() { |
+ return this._config; |
+ }; |
+ |
+ window.RTCPeerConnection.prototype.addStream = function(stream) { |
+ if (browserDetails.version >= 15025) { |
+ this.localStreams.push(stream); |
+ } else { |
+ // Clone is necessary for local demos mostly, attaching directly |
+ // to two different senders does not work (build 10547). |
+ // Fixed in 15025 (or earlier) |
+ var clonedStream = stream.clone(); |
+ stream.getTracks().forEach(function(track, idx) { |
+ var clonedTrack = clonedStream.getTracks()[idx]; |
+ track.addEventListener('enabled', function(event) { |
+ clonedTrack.enabled = event.enabled; |
+ }); |
+ }); |
+ this.localStreams.push(clonedStream); |
+ } |
+ this._maybeFireNegotiationNeeded(); |
+ }; |
+ |
+ window.RTCPeerConnection.prototype.removeStream = function(stream) { |
+ var idx = this.localStreams.indexOf(stream); |
+ if (idx > -1) { |
+ this.localStreams.splice(idx, 1); |
+ this._maybeFireNegotiationNeeded(); |
+ } |
+ }; |
+ |
+ window.RTCPeerConnection.prototype.getSenders = function() { |
+ return this.transceivers.filter(function(transceiver) { |
+ return !!transceiver.rtpSender; |
+ }) |
+ .map(function(transceiver) { |
+ return transceiver.rtpSender; |
+ }); |
+ }; |
+ |
+ window.RTCPeerConnection.prototype.getReceivers = function() { |
+ return this.transceivers.filter(function(transceiver) { |
+ return !!transceiver.rtpReceiver; |
+ }) |
+ .map(function(transceiver) { |
+ return transceiver.rtpReceiver; |
+ }); |
+ }; |
+ |
+ // Determines the intersection of local and remote capabilities. |
+ window.RTCPeerConnection.prototype._getCommonCapabilities = |
+ function(localCapabilities, remoteCapabilities) { |
+ var commonCapabilities = { |
+ codecs: [], |
+ headerExtensions: [], |
+ fecMechanisms: [] |
+ }; |
+ |
+ var findCodecByPayloadType = function(pt, codecs) { |
+ pt = parseInt(pt, 10); |
+ for (var i = 0; i < codecs.length; i++) { |
+ if (codecs[i].payloadType === pt || |
+ codecs[i].preferredPayloadType === pt) { |
+ return codecs[i]; |
+ } |
+ } |
+ }; |
+ |
+ var rtxCapabilityMatches = function(lRtx, rRtx, lCodecs, rCodecs) { |
+ var lCodec = findCodecByPayloadType(lRtx.parameters.apt, lCodecs); |
+ var rCodec = findCodecByPayloadType(rRtx.parameters.apt, rCodecs); |
+ return lCodec && rCodec && |
+ lCodec.name.toLowerCase() === rCodec.name.toLowerCase(); |
+ }; |
+ |
+ localCapabilities.codecs.forEach(function(lCodec) { |
+ for (var i = 0; i < remoteCapabilities.codecs.length; i++) { |
+ var rCodec = remoteCapabilities.codecs[i]; |
+ if (lCodec.name.toLowerCase() === rCodec.name.toLowerCase() && |
+ lCodec.clockRate === rCodec.clockRate) { |
+ if (lCodec.name.toLowerCase() === 'rtx' && |
+ lCodec.parameters && rCodec.parameters.apt) { |
+ // for RTX we need to find the local rtx that has a apt |
+ // which points to the same local codec as the remote one. |
+ if (!rtxCapabilityMatches(lCodec, rCodec, |
+ localCapabilities.codecs, remoteCapabilities.codecs)) { |
+ continue; |
+ } |
+ } |
+ rCodec = JSON.parse(JSON.stringify(rCodec)); // deepcopy |
+ // number of channels is the highest common number of channels |
+ rCodec.numChannels = Math.min(lCodec.numChannels, |
+ rCodec.numChannels); |
+ // push rCodec so we reply with offerer payload type |
+ commonCapabilities.codecs.push(rCodec); |
+ |
+ // determine common feedback mechanisms |
+ rCodec.rtcpFeedback = rCodec.rtcpFeedback.filter(function(fb) { |
+ for (var j = 0; j < lCodec.rtcpFeedback.length; j++) { |
+ if (lCodec.rtcpFeedback[j].type === fb.type && |
+ lCodec.rtcpFeedback[j].parameter === fb.parameter) { |
+ return true; |
+ } |
+ } |
+ return false; |
+ }); |
+ // FIXME: also need to determine .parameters |
+ // see https://github.com/openpeer/ortc/issues/569 |
+ break; |
+ } |
+ } |
+ }); |
+ |
+ localCapabilities.headerExtensions |
+ .forEach(function(lHeaderExtension) { |
+ for (var i = 0; i < remoteCapabilities.headerExtensions.length; |
+ i++) { |
+ var rHeaderExtension = remoteCapabilities.headerExtensions[i]; |
+ if (lHeaderExtension.uri === rHeaderExtension.uri) { |
+ commonCapabilities.headerExtensions.push(rHeaderExtension); |
+ break; |
+ } |
+ } |
+ }); |
+ |
+ // FIXME: fecMechanisms |
+ return commonCapabilities; |
+ }; |
+ |
+ // Create ICE gatherer, ICE transport and DTLS transport. |
+ window.RTCPeerConnection.prototype._createIceAndDtlsTransports = |
+ function(mid, sdpMLineIndex) { |
+ var self = this; |
+ var iceGatherer = new RTCIceGatherer(self.iceOptions); |
+ var iceTransport = new RTCIceTransport(iceGatherer); |
+ iceGatherer.onlocalcandidate = function(evt) { |
+ var event = new Event('icecandidate'); |
+ event.candidate = {sdpMid: mid, sdpMLineIndex: sdpMLineIndex}; |
+ |
+ var cand = evt.candidate; |
+ var end = !cand || Object.keys(cand).length === 0; |
+ // Edge emits an empty object for RTCIceCandidateComplete‥ |
+ if (end) { |
+ // polyfill since RTCIceGatherer.state is not implemented in |
+ // Edge 10547 yet. |
+ if (iceGatherer.state === undefined) { |
+ iceGatherer.state = 'completed'; |
+ } |
+ } else { |
+ // RTCIceCandidate doesn't have a component, needs to be added |
+ cand.component = iceTransport.component === 'RTCP' ? 2 : 1; |
+ event.candidate.candidate = SDPUtils.writeCandidate(cand); |
+ } |
+ |
+ // update local description. |
+ var sections = SDPUtils.splitSections(self.localDescription.sdp); |
+ if (!end) { |
+ sections[event.candidate.sdpMLineIndex + 1] += |
+ 'a=' + event.candidate.candidate + '\r\n'; |
+ } else { |
+ sections[event.candidate.sdpMLineIndex + 1] += |
+ 'a=end-of-candidates\r\n'; |
+ } |
+ self.localDescription.sdp = sections.join(''); |
+ var transceivers = self._pendingOffer ? self._pendingOffer : |
+ self.transceivers; |
+ var complete = transceivers.every(function(transceiver) { |
+ return transceiver.iceGatherer && |
+ transceiver.iceGatherer.state === 'completed'; |
+ }); |
+ |
+ // Emit candidate if localDescription is set. |
+ // Also emits null candidate when all gatherers are complete. |
+ switch (self.iceGatheringState) { |
+ case 'new': |
+ if (!end) { |
+ self._localIceCandidatesBuffer.push(event); |
+ } |
+ if (end && complete) { |
+ self._localIceCandidatesBuffer.push( |
+ new Event('icecandidate')); |
+ } |
+ break; |
+ case 'gathering': |
+ self._emitBufferedCandidates(); |
+ if (!end) { |
+ self.dispatchEvent(event); |
+ if (self.onicecandidate !== null) { |
+ self.onicecandidate(event); |
+ } |
+ } |
+ if (complete) { |
+ self.dispatchEvent(new Event('icecandidate')); |
+ if (self.onicecandidate !== null) { |
+ self.onicecandidate(new Event('icecandidate')); |
+ } |
+ self.iceGatheringState = 'complete'; |
+ self._emitGatheringStateChange(); |
+ } |
+ break; |
+ case 'complete': |
+ // should not happen... currently! |
+ break; |
+ default: // no-op. |
+ break; |
+ } |
+ }; |
+ iceTransport.onicestatechange = function() { |
+ self._updateConnectionState(); |
+ }; |
+ |
+ var dtlsTransport = new RTCDtlsTransport(iceTransport); |
+ dtlsTransport.ondtlsstatechange = function() { |
+ self._updateConnectionState(); |
+ }; |
+ dtlsTransport.onerror = function() { |
+ // onerror does not set state to failed by itself. |
+ dtlsTransport.state = 'failed'; |
+ self._updateConnectionState(); |
+ }; |
+ |
+ return { |
+ iceGatherer: iceGatherer, |
+ iceTransport: iceTransport, |
+ dtlsTransport: dtlsTransport |
+ }; |
+ }; |
+ |
+ // Start the RTP Sender and Receiver for a transceiver. |
+ window.RTCPeerConnection.prototype._transceive = function(transceiver, |
+ send, recv) { |
+ var params = this._getCommonCapabilities(transceiver.localCapabilities, |
+ transceiver.remoteCapabilities); |
+ if (send && transceiver.rtpSender) { |
+ params.encodings = transceiver.sendEncodingParameters; |
+ params.rtcp = { |
+ cname: SDPUtils.localCName |
+ }; |
+ if (transceiver.recvEncodingParameters.length) { |
+ params.rtcp.ssrc = transceiver.recvEncodingParameters[0].ssrc; |
+ } |
+ transceiver.rtpSender.send(params); |
+ } |
+ if (recv && transceiver.rtpReceiver) { |
+ // remove RTX field in Edge 14942 |
+ if (transceiver.kind === 'video' |
+ && transceiver.recvEncodingParameters |
+ && browserDetails.version < 15019) { |
+ transceiver.recvEncodingParameters.forEach(function(p) { |
+ delete p.rtx; |
+ }); |
+ } |
+ params.encodings = transceiver.recvEncodingParameters; |
+ params.rtcp = { |
+ cname: transceiver.cname |
+ }; |
+ if (transceiver.sendEncodingParameters.length) { |
+ params.rtcp.ssrc = transceiver.sendEncodingParameters[0].ssrc; |
+ } |
+ transceiver.rtpReceiver.receive(params); |
+ } |
+ }; |
+ |
+ window.RTCPeerConnection.prototype.setLocalDescription = |
+ function(description) { |
+ var self = this; |
+ var sections; |
+ var sessionpart; |
+ if (description.type === 'offer') { |
+ // FIXME: What was the purpose of this empty if statement? |
+ // if (!this._pendingOffer) { |
+ // } else { |
+ if (this._pendingOffer) { |
+ // VERY limited support for SDP munging. Limited to: |
+ // * changing the order of codecs |
+ sections = SDPUtils.splitSections(description.sdp); |
+ sessionpart = sections.shift(); |
+ sections.forEach(function(mediaSection, sdpMLineIndex) { |
+ var caps = SDPUtils.parseRtpParameters(mediaSection); |
+ self._pendingOffer[sdpMLineIndex].localCapabilities = caps; |
+ }); |
+ this.transceivers = this._pendingOffer; |
+ delete this._pendingOffer; |
+ } |
+ } else if (description.type === 'answer') { |
+ sections = SDPUtils.splitSections(self.remoteDescription.sdp); |
+ sessionpart = sections.shift(); |
+ var isIceLite = SDPUtils.matchPrefix(sessionpart, |
+ 'a=ice-lite').length > 0; |
+ sections.forEach(function(mediaSection, sdpMLineIndex) { |
+ var transceiver = self.transceivers[sdpMLineIndex]; |
+ var iceGatherer = transceiver.iceGatherer; |
+ var iceTransport = transceiver.iceTransport; |
+ var dtlsTransport = transceiver.dtlsTransport; |
+ var localCapabilities = transceiver.localCapabilities; |
+ var remoteCapabilities = transceiver.remoteCapabilities; |
+ |
+ var rejected = mediaSection.split('\n', 1)[0] |
+ .split(' ', 2)[1] === '0'; |
+ |
+ if (!rejected && !transceiver.isDatachannel) { |
+ var remoteIceParameters = SDPUtils.getIceParameters( |
+ mediaSection, sessionpart); |
+ var remoteDtlsParameters = SDPUtils.getDtlsParameters( |
+ mediaSection, sessionpart); |
+ if (isIceLite) { |
+ remoteDtlsParameters.role = 'server'; |
+ } |
+ |
+ if (!self.usingBundle || sdpMLineIndex === 0) { |
+ iceTransport.start(iceGatherer, remoteIceParameters, |
+ isIceLite ? 'controlling' : 'controlled'); |
+ dtlsTransport.start(remoteDtlsParameters); |
+ } |
+ |
+ // Calculate intersection of capabilities. |
+ var params = self._getCommonCapabilities(localCapabilities, |
+ remoteCapabilities); |
+ |
+ // Start the RTCRtpSender. The RTCRtpReceiver for this |
+ // transceiver has already been started in setRemoteDescription. |
+ self._transceive(transceiver, |
+ params.codecs.length > 0, |
+ false); |
+ } |
+ }); |
+ } |
+ |
+ this.localDescription = { |
+ type: description.type, |
+ sdp: description.sdp |
+ }; |
+ switch (description.type) { |
+ case 'offer': |
+ this._updateSignalingState('have-local-offer'); |
+ break; |
+ case 'answer': |
+ this._updateSignalingState('stable'); |
+ break; |
+ default: |
+ throw new TypeError('unsupported type "' + description.type + |
+ '"'); |
+ } |
+ |
+ // If a success callback was provided, emit ICE candidates after it |
+ // has been executed. Otherwise, emit callback after the Promise is |
+ // resolved. |
+ var hasCallback = arguments.length > 1 && |
+ typeof arguments[1] === 'function'; |
+ if (hasCallback) { |
+ var cb = arguments[1]; |
+ window.setTimeout(function() { |
+ cb(); |
+ if (self.iceGatheringState === 'new') { |
+ self.iceGatheringState = 'gathering'; |
+ self._emitGatheringStateChange(); |
+ } |
+ self._emitBufferedCandidates(); |
+ }, 0); |
+ } |
+ var p = Promise.resolve(); |
+ p.then(function() { |
+ if (!hasCallback) { |
+ if (self.iceGatheringState === 'new') { |
+ self.iceGatheringState = 'gathering'; |
+ self._emitGatheringStateChange(); |
+ } |
+ // Usually candidates will be emitted earlier. |
+ window.setTimeout(self._emitBufferedCandidates.bind(self), 500); |
+ } |
+ }); |
+ return p; |
+ }; |
+ |
+ window.RTCPeerConnection.prototype.setRemoteDescription = |
+ function(description) { |
+ var self = this; |
+ var stream = new MediaStream(); |
+ var receiverList = []; |
+ var sections = SDPUtils.splitSections(description.sdp); |
+ var sessionpart = sections.shift(); |
+ var isIceLite = SDPUtils.matchPrefix(sessionpart, |
+ 'a=ice-lite').length > 0; |
+ this.usingBundle = SDPUtils.matchPrefix(sessionpart, |
+ 'a=group:BUNDLE ').length > 0; |
+ sections.forEach(function(mediaSection, sdpMLineIndex) { |
+ var lines = SDPUtils.splitLines(mediaSection); |
+ var mline = lines[0].substr(2).split(' '); |
+ var kind = mline[0]; |
+ var rejected = mline[1] === '0'; |
+ var direction = SDPUtils.getDirection(mediaSection, sessionpart); |
+ |
+ var mid = SDPUtils.matchPrefix(mediaSection, 'a=mid:'); |
+ if (mid.length) { |
+ mid = mid[0].substr(6); |
+ } else { |
+ mid = SDPUtils.generateIdentifier(); |
+ } |
+ |
+ // Reject datachannels which are not implemented yet. |
+ if (kind === 'application' && mline[2] === 'DTLS/SCTP') { |
+ self.transceivers[sdpMLineIndex] = { |
+ mid: mid, |
+ isDatachannel: true |
+ }; |
+ return; |
+ } |
+ |
+ var transceiver; |
+ var iceGatherer; |
+ var iceTransport; |
+ var dtlsTransport; |
+ var rtpSender; |
+ var rtpReceiver; |
+ var sendEncodingParameters; |
+ var recvEncodingParameters; |
+ var localCapabilities; |
+ |
+ var track; |
+ // FIXME: ensure the mediaSection has rtcp-mux set. |
+ var remoteCapabilities = SDPUtils.parseRtpParameters(mediaSection); |
+ var remoteIceParameters; |
+ var remoteDtlsParameters; |
+ if (!rejected) { |
+ remoteIceParameters = SDPUtils.getIceParameters(mediaSection, |
+ sessionpart); |
+ remoteDtlsParameters = SDPUtils.getDtlsParameters(mediaSection, |
+ sessionpart); |
+ remoteDtlsParameters.role = 'client'; |
+ } |
+ recvEncodingParameters = |
+ SDPUtils.parseRtpEncodingParameters(mediaSection); |
+ |
+ var 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) { |
+ cname = remoteSsrc.value; |
+ } |
+ |
+ var isComplete = SDPUtils.matchPrefix(mediaSection, |
+ 'a=end-of-candidates', sessionpart).length > 0; |
+ var cands = SDPUtils.matchPrefix(mediaSection, 'a=candidate:') |
+ .map(function(cand) { |
+ return SDPUtils.parseCandidate(cand); |
+ }) |
+ .filter(function(cand) { |
+ return cand.component === '1'; |
+ }); |
+ if (description.type === 'offer' && !rejected) { |
+ var transports = self.usingBundle && sdpMLineIndex > 0 ? { |
+ iceGatherer: self.transceivers[0].iceGatherer, |
+ iceTransport: self.transceivers[0].iceTransport, |
+ dtlsTransport: self.transceivers[0].dtlsTransport |
+ } : self._createIceAndDtlsTransports(mid, sdpMLineIndex); |
+ |
+ if (isComplete && (!self.usingBundle || sdpMLineIndex === 0)) { |
+ transports.iceTransport.setRemoteCandidates(cands); |
+ } |
+ |
+ localCapabilities = RTCRtpReceiver.getCapabilities(kind); |
+ |
+ // filter RTX until additional stuff needed for RTX is implemented |
+ // in adapter.js |
+ if (browserDetails.version < 15019) { |
+ localCapabilities.codecs = localCapabilities.codecs.filter( |
+ function(codec) { |
+ return codec.name !== 'rtx'; |
+ }); |
+ } |
+ |
+ sendEncodingParameters = [{ |
+ ssrc: (2 * sdpMLineIndex + 2) * 1001 |
+ }]; |
+ |
+ if (direction === 'sendrecv' || direction === 'sendonly') { |
+ rtpReceiver = new RTCRtpReceiver(transports.dtlsTransport, |
+ kind); |
+ |
+ track = rtpReceiver.track; |
+ receiverList.push([track, rtpReceiver]); |
+ // FIXME: not correct when there are multiple streams but that |
+ // is not currently supported in this shim. |
+ stream.addTrack(track); |
+ } |
+ |
+ // FIXME: look at direction. |
+ if (self.localStreams.length > 0 && |
+ self.localStreams[0].getTracks().length >= sdpMLineIndex) { |
+ var localTrack; |
+ if (kind === 'audio') { |
+ localTrack = self.localStreams[0].getAudioTracks()[0]; |
+ } else if (kind === 'video') { |
+ localTrack = self.localStreams[0].getVideoTracks()[0]; |
+ } |
+ if (localTrack) { |
+ // add RTX |
+ if (browserDetails.version >= 15019 && kind === 'video') { |
+ sendEncodingParameters[0].rtx = { |
+ ssrc: (2 * sdpMLineIndex + 2) * 1001 + 1 |
+ }; |
+ } |
+ rtpSender = new RTCRtpSender(localTrack, |
+ transports.dtlsTransport); |
+ } |
+ } |
+ |
+ self.transceivers[sdpMLineIndex] = { |
+ iceGatherer: transports.iceGatherer, |
+ iceTransport: transports.iceTransport, |
+ dtlsTransport: transports.dtlsTransport, |
+ localCapabilities: localCapabilities, |
+ remoteCapabilities: remoteCapabilities, |
+ rtpSender: rtpSender, |
+ rtpReceiver: rtpReceiver, |
+ kind: kind, |
+ mid: mid, |
+ cname: cname, |
+ sendEncodingParameters: sendEncodingParameters, |
+ recvEncodingParameters: recvEncodingParameters |
+ }; |
+ // Start the RTCRtpReceiver now. The RTPSender is started in |
+ // setLocalDescription. |
+ self._transceive(self.transceivers[sdpMLineIndex], |
+ false, |
+ direction === 'sendrecv' || direction === 'sendonly'); |
+ } else if (description.type === 'answer' && !rejected) { |
+ transceiver = self.transceivers[sdpMLineIndex]; |
+ iceGatherer = transceiver.iceGatherer; |
+ iceTransport = transceiver.iceTransport; |
+ dtlsTransport = transceiver.dtlsTransport; |
+ rtpSender = transceiver.rtpSender; |
+ rtpReceiver = transceiver.rtpReceiver; |
+ sendEncodingParameters = transceiver.sendEncodingParameters; |
+ localCapabilities = transceiver.localCapabilities; |
+ |
+ self.transceivers[sdpMLineIndex].recvEncodingParameters = |
+ recvEncodingParameters; |
+ self.transceivers[sdpMLineIndex].remoteCapabilities = |
+ remoteCapabilities; |
+ self.transceivers[sdpMLineIndex].cname = cname; |
+ |
+ if ((isIceLite || isComplete) && cands.length) { |
+ iceTransport.setRemoteCandidates(cands); |
+ } |
+ if (!self.usingBundle || sdpMLineIndex === 0) { |
+ iceTransport.start(iceGatherer, remoteIceParameters, |
+ 'controlling'); |
+ dtlsTransport.start(remoteDtlsParameters); |
+ } |
+ |
+ self._transceive(transceiver, |
+ direction === 'sendrecv' || direction === 'recvonly', |
+ direction === 'sendrecv' || direction === 'sendonly'); |
+ |
+ if (rtpReceiver && |
+ (direction === 'sendrecv' || direction === 'sendonly')) { |
+ track = rtpReceiver.track; |
+ receiverList.push([track, rtpReceiver]); |
+ stream.addTrack(track); |
+ } else { |
+ // FIXME: actually the receiver should be created later. |
+ delete transceiver.rtpReceiver; |
+ } |
+ } |
+ }); |
+ |
+ this.remoteDescription = { |
+ type: description.type, |
+ sdp: description.sdp |
+ }; |
+ switch (description.type) { |
+ case 'offer': |
+ this._updateSignalingState('have-remote-offer'); |
+ break; |
+ case 'answer': |
+ this._updateSignalingState('stable'); |
+ break; |
+ default: |
+ throw new TypeError('unsupported type "' + description.type + |
+ '"'); |
+ } |
+ if (stream.getTracks().length) { |
+ self.remoteStreams.push(stream); |
+ window.setTimeout(function() { |
+ var event = new Event('addstream'); |
+ event.stream = stream; |
+ self.dispatchEvent(event); |
+ if (self.onaddstream !== null) { |
+ window.setTimeout(function() { |
+ self.onaddstream(event); |
+ }, 0); |
+ } |
+ |
+ receiverList.forEach(function(item) { |
+ var track = item[0]; |
+ var receiver = item[1]; |
+ var trackEvent = new Event('track'); |
+ trackEvent.track = track; |
+ trackEvent.receiver = receiver; |
+ trackEvent.streams = [stream]; |
+ self.dispatchEvent(trackEvent); |
+ if (self.ontrack !== null) { |
+ window.setTimeout(function() { |
+ self.ontrack(trackEvent); |
+ }, 0); |
+ } |
+ }); |
+ }, 0); |
+ } |
+ if (arguments.length > 1 && typeof arguments[1] === 'function') { |
+ window.setTimeout(arguments[1], 0); |
+ } |
+ return Promise.resolve(); |
+ }; |
+ |
+ window.RTCPeerConnection.prototype.close = function() { |
+ this.transceivers.forEach(function(transceiver) { |
+ /* not yet |
+ if (transceiver.iceGatherer) { |
+ transceiver.iceGatherer.close(); |
+ } |
+ */ |
+ if (transceiver.iceTransport) { |
+ transceiver.iceTransport.stop(); |
+ } |
+ if (transceiver.dtlsTransport) { |
+ transceiver.dtlsTransport.stop(); |
+ } |
+ if (transceiver.rtpSender) { |
+ transceiver.rtpSender.stop(); |
+ } |
+ if (transceiver.rtpReceiver) { |
+ transceiver.rtpReceiver.stop(); |
+ } |
+ }); |
+ // FIXME: clean up tracks, local streams, remote streams, etc |
+ this._updateSignalingState('closed'); |
+ }; |
+ |
+ // Update the signaling state. |
+ window.RTCPeerConnection.prototype._updateSignalingState = |
+ function(newState) { |
+ this.signalingState = newState; |
+ var event = new Event('signalingstatechange'); |
+ this.dispatchEvent(event); |
+ if (this.onsignalingstatechange !== null) { |
+ this.onsignalingstatechange(event); |
+ } |
+ }; |
+ |
+ // Determine whether to fire the negotiationneeded event. |
+ window.RTCPeerConnection.prototype._maybeFireNegotiationNeeded = |
+ function() { |
+ // Fire away (for now). |
+ var event = new Event('negotiationneeded'); |
+ this.dispatchEvent(event); |
+ if (this.onnegotiationneeded !== null) { |
+ this.onnegotiationneeded(event); |
+ } |
+ }; |
+ |
+ // Update the connection state. |
+ window.RTCPeerConnection.prototype._updateConnectionState = function() { |
+ var self = this; |
+ var newState; |
+ var states = { |
+ 'new': 0, |
+ closed: 0, |
+ connecting: 0, |
+ checking: 0, |
+ connected: 0, |
+ completed: 0, |
+ failed: 0 |
+ }; |
+ this.transceivers.forEach(function(transceiver) { |
+ states[transceiver.iceTransport.state]++; |
+ states[transceiver.dtlsTransport.state]++; |
+ }); |
+ // ICETransport.completed and connected are the same for this purpose. |
+ states.connected += states.completed; |
+ |
+ newState = 'new'; |
+ if (states.failed > 0) { |
+ newState = 'failed'; |
+ } else if (states.connecting > 0 || states.checking > 0) { |
+ newState = 'connecting'; |
+ } else if (states.disconnected > 0) { |
+ newState = 'disconnected'; |
+ } else if (states.new > 0) { |
+ newState = 'new'; |
+ } else if (states.connected > 0 || states.completed > 0) { |
+ newState = 'connected'; |
+ } |
+ |
+ if (newState !== self.iceConnectionState) { |
+ self.iceConnectionState = newState; |
+ var event = new Event('iceconnectionstatechange'); |
+ this.dispatchEvent(event); |
+ if (this.oniceconnectionstatechange !== null) { |
+ this.oniceconnectionstatechange(event); |
+ } |
+ } |
+ }; |
+ |
+ window.RTCPeerConnection.prototype.createOffer = function() { |
+ var self = this; |
+ if (this._pendingOffer) { |
+ throw new Error('createOffer called while there is a pending offer.'); |
+ } |
+ var offerOptions; |
+ if (arguments.length === 1 && typeof arguments[0] !== 'function') { |
+ offerOptions = arguments[0]; |
+ } else if (arguments.length === 3) { |
+ offerOptions = arguments[2]; |
+ } |
+ |
+ var tracks = []; |
+ var numAudioTracks = 0; |
+ var numVideoTracks = 0; |
+ // Default to sendrecv. |
+ if (this.localStreams.length) { |
+ numAudioTracks = this.localStreams[0].getAudioTracks().length; |
+ numVideoTracks = this.localStreams[0].getVideoTracks().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) { |
+ numAudioTracks = offerOptions.offerToReceiveAudio; |
+ } |
+ if (offerOptions.offerToReceiveVideo !== undefined) { |
+ numVideoTracks = offerOptions.offerToReceiveVideo; |
+ } |
+ } |
+ if (this.localStreams.length) { |
+ // Push local streams. |
+ this.localStreams[0].getTracks().forEach(function(track) { |
+ tracks.push({ |
+ kind: track.kind, |
+ track: track, |
+ wantReceive: track.kind === 'audio' ? |
+ numAudioTracks > 0 : numVideoTracks > 0 |
+ }); |
+ if (track.kind === 'audio') { |
+ numAudioTracks--; |
+ } else if (track.kind === 'video') { |
+ numVideoTracks--; |
+ } |
+ }); |
+ } |
+ // Create M-lines for recvonly streams. |
+ while (numAudioTracks > 0 || numVideoTracks > 0) { |
+ if (numAudioTracks > 0) { |
+ tracks.push({ |
+ kind: 'audio', |
+ wantReceive: true |
+ }); |
+ numAudioTracks--; |
+ } |
+ if (numVideoTracks > 0) { |
+ tracks.push({ |
+ kind: 'video', |
+ wantReceive: true |
+ }); |
+ numVideoTracks--; |
+ } |
+ } |
+ // reorder tracks |
+ tracks = sortTracks(tracks); |
+ |
+ var sdp = SDPUtils.writeSessionBoilerplate(); |
+ var transceivers = []; |
+ tracks.forEach(function(mline, sdpMLineIndex) { |
+ // For each track, create an ice gatherer, ice transport, |
+ // dtls transport, potentially rtpsender and rtpreceiver. |
+ var track = mline.track; |
+ var kind = mline.kind; |
+ var mid = SDPUtils.generateIdentifier(); |
+ |
+ var transports = self.usingBundle && sdpMLineIndex > 0 ? { |
+ iceGatherer: transceivers[0].iceGatherer, |
+ iceTransport: transceivers[0].iceTransport, |
+ dtlsTransport: transceivers[0].dtlsTransport |
+ } : self._createIceAndDtlsTransports(mid, sdpMLineIndex); |
+ |
+ var localCapabilities = RTCRtpSender.getCapabilities(kind); |
+ // filter RTX until additional stuff needed for RTX is implemented |
+ // in adapter.js |
+ if (browserDetails.version < 15019) { |
+ localCapabilities.codecs = localCapabilities.codecs.filter( |
+ function(codec) { |
+ return codec.name !== 'rtx'; |
+ }); |
+ } |
+ localCapabilities.codecs.forEach(function(codec) { |
+ // work around https://bugs.chromium.org/p/webrtc/issues/detail?id=6552 |
+ // by adding level-asymmetry-allowed=1 |
+ if (codec.name === 'H264' && |
+ codec.parameters['level-asymmetry-allowed'] === undefined) { |
+ codec.parameters['level-asymmetry-allowed'] = '1'; |
+ } |
+ }); |
+ |
+ var rtpSender; |
+ var rtpReceiver; |
+ |
+ // generate an ssrc now, to be used later in rtpSender.send |
+ var sendEncodingParameters = [{ |
+ ssrc: (2 * sdpMLineIndex + 1) * 1001 |
+ }]; |
+ if (track) { |
+ // add RTX |
+ if (browserDetails.version >= 15019 && kind === 'video') { |
+ sendEncodingParameters[0].rtx = { |
+ ssrc: (2 * sdpMLineIndex + 1) * 1001 + 1 |
+ }; |
+ } |
+ rtpSender = new RTCRtpSender(track, transports.dtlsTransport); |
+ } |
+ |
+ if (mline.wantReceive) { |
+ rtpReceiver = new RTCRtpReceiver(transports.dtlsTransport, kind); |
+ } |
+ |
+ transceivers[sdpMLineIndex] = { |
+ iceGatherer: transports.iceGatherer, |
+ iceTransport: transports.iceTransport, |
+ dtlsTransport: transports.dtlsTransport, |
+ localCapabilities: localCapabilities, |
+ remoteCapabilities: null, |
+ rtpSender: rtpSender, |
+ rtpReceiver: rtpReceiver, |
+ kind: kind, |
+ mid: mid, |
+ sendEncodingParameters: sendEncodingParameters, |
+ recvEncodingParameters: null |
+ }; |
+ }); |
+ if (this.usingBundle) { |
+ sdp += 'a=group:BUNDLE ' + transceivers.map(function(t) { |
+ return t.mid; |
+ }).join(' ') + '\r\n'; |
+ } |
+ tracks.forEach(function(mline, sdpMLineIndex) { |
+ var transceiver = transceivers[sdpMLineIndex]; |
+ sdp += SDPUtils.writeMediaSection(transceiver, |
+ transceiver.localCapabilities, 'offer', self.localStreams[0]); |
+ }); |
+ |
+ this._pendingOffer = transceivers; |
+ var desc = new RTCSessionDescription({ |
+ type: 'offer', |
+ sdp: sdp |
+ }); |
+ if (arguments.length && typeof arguments[0] === 'function') { |
+ window.setTimeout(arguments[0], 0, desc); |
+ } |
+ return Promise.resolve(desc); |
+ }; |
+ |
+ window.RTCPeerConnection.prototype.createAnswer = function() { |
+ var self = this; |
+ |
+ var sdp = SDPUtils.writeSessionBoilerplate(); |
+ if (this.usingBundle) { |
+ sdp += 'a=group:BUNDLE ' + this.transceivers.map(function(t) { |
+ return t.mid; |
+ }).join(' ') + '\r\n'; |
+ } |
+ this.transceivers.forEach(function(transceiver) { |
+ if (transceiver.isDatachannel) { |
+ sdp += 'm=application 0 DTLS/SCTP 5000\r\n' + |
+ 'c=IN IP4 0.0.0.0\r\n' + |
+ 'a=mid:' + transceiver.mid + '\r\n'; |
+ return; |
+ } |
+ // Calculate intersection of capabilities. |
+ var commonCapabilities = self._getCommonCapabilities( |
+ transceiver.localCapabilities, |
+ transceiver.remoteCapabilities); |
+ |
+ sdp += SDPUtils.writeMediaSection(transceiver, commonCapabilities, |
+ 'answer', self.localStreams[0]); |
+ }); |
+ |
+ var desc = new RTCSessionDescription({ |
+ type: 'answer', |
+ sdp: sdp |
+ }); |
+ if (arguments.length && typeof arguments[0] === 'function') { |
+ window.setTimeout(arguments[0], 0, desc); |
+ } |
+ return Promise.resolve(desc); |
+ }; |
+ |
+ window.RTCPeerConnection.prototype.addIceCandidate = function(candidate) { |
+ if (!candidate) { |
+ for (var j = 0; j < this.transceivers.length; j++) { |
+ this.transceivers[j].iceTransport.addRemoteCandidate({}); |
+ if (this.usingBundle) { |
+ return Promise.resolve(); |
+ } |
+ } |
+ } else { |
+ var mLineIndex = candidate.sdpMLineIndex; |
+ if (candidate.sdpMid) { |
+ for (var i = 0; i < this.transceivers.length; i++) { |
+ if (this.transceivers[i].mid === candidate.sdpMid) { |
+ mLineIndex = i; |
+ break; |
+ } |
+ } |
+ } |
+ var transceiver = this.transceivers[mLineIndex]; |
+ if (transceiver) { |
+ var cand = Object.keys(candidate.candidate).length > 0 ? |
+ SDPUtils.parseCandidate(candidate.candidate) : {}; |
+ // Ignore Chrome's invalid candidates since Edge does not like them. |
+ if (cand.protocol === 'tcp' && (cand.port === 0 || cand.port === 9)) { |
+ return Promise.resolve(); |
+ } |
+ // Ignore RTCP candidates, we assume RTCP-MUX. |
+ if (cand.component !== '1') { |
+ return Promise.resolve(); |
+ } |
+ transceiver.iceTransport.addRemoteCandidate(cand); |
+ |
+ // update the remoteDescription. |
+ var sections = SDPUtils.splitSections(this.remoteDescription.sdp); |
+ sections[mLineIndex + 1] += (cand.type ? candidate.candidate.trim() |
+ : 'a=end-of-candidates') + '\r\n'; |
+ this.remoteDescription.sdp = sections.join(''); |
+ } |
+ } |
+ if (arguments.length > 1 && typeof arguments[1] === 'function') { |
+ window.setTimeout(arguments[1], 0); |
+ } |
+ return Promise.resolve(); |
+ }; |
+ |
+ window.RTCPeerConnection.prototype.getStats = function() { |
+ var promises = []; |
+ this.transceivers.forEach(function(transceiver) { |
+ ['rtpSender', 'rtpReceiver', 'iceGatherer', 'iceTransport', |
+ 'dtlsTransport'].forEach(function(method) { |
+ if (transceiver[method]) { |
+ promises.push(transceiver[method].getStats()); |
+ } |
+ }); |
+ }); |
+ var cb = arguments.length > 1 && typeof arguments[1] === 'function' && |
+ arguments[1]; |
+ var fixStatsType = function(stat) { |
+ return { |
+ inboundrtp: 'inbound-rtp', |
+ outboundrtp: 'outbound-rtp', |
+ candidatepair: 'candidate-pair', |
+ localcandidate: 'local-candidate', |
+ remotecandidate: 'remote-candidate' |
+ }[stat.type] || stat.type; |
+ }; |
+ return new Promise(function(resolve) { |
+ // shim getStats with maplike support |
+ var results = new Map(); |
+ Promise.all(promises).then(function(res) { |
+ res.forEach(function(result) { |
+ Object.keys(result).forEach(function(id) { |
+ result[id].type = fixStatsType(result[id]); |
+ results.set(id, result[id]); |
+ }); |
+ }); |
+ if (cb) { |
+ window.setTimeout(cb, 0, results); |
+ } |
+ resolve(results); |
+ }); |
+ }); |
+ }; |
+ } |
+}; |
+ |
+// Expose public methods. |
+module.exports = { |
+ shimPeerConnection: edgeShim.shimPeerConnection, |
+ shimGetUserMedia: require('./getusermedia') |
+}; |
+ |
+},{"../utils":10,"./getusermedia":6,"sdp":1}],6:[function(require,module,exports){ |
+/* |
+ * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved. |
+ * |
+ * Use of this source code is governed by a BSD-style license |
+ * that can be found in the LICENSE file in the root of the source |
+ * tree. |
+ */ |
+ /* eslint-env node */ |
+'use strict'; |
+ |
+// Expose public methods. |
+module.exports = function() { |
+ var shimError_ = function(e) { |
+ return { |
+ name: {PermissionDeniedError: 'NotAllowedError'}[e.name] || e.name, |
+ message: e.message, |
+ constraint: e.constraint, |
+ toString: function() { |
+ return this.name; |
+ } |
+ }; |
+ }; |
+ |
+ // getUserMedia error shim. |
+ var origGetUserMedia = navigator.mediaDevices.getUserMedia. |
+ bind(navigator.mediaDevices); |
+ navigator.mediaDevices.getUserMedia = function(c) { |
+ return origGetUserMedia(c).catch(function(e) { |
+ return Promise.reject(shimError_(e)); |
+ }); |
+ }; |
+}; |
+ |
+},{}],7:[function(require,module,exports){ |
+/* |
+ * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved. |
+ * |
+ * Use of this source code is governed by a BSD-style license |
+ * that can be found in the LICENSE file in the root of the source |
+ * tree. |
+ */ |
+ /* eslint-env node */ |
+'use strict'; |
+ |
+var browserDetails = require('../utils').browserDetails; |
+ |
+var firefoxShim = { |
+ shimOnTrack: function() { |
+ if (typeof window === 'object' && window.RTCPeerConnection && !('ontrack' in |
+ window.RTCPeerConnection.prototype)) { |
+ Object.defineProperty(window.RTCPeerConnection.prototype, 'ontrack', { |
+ get: function() { |
+ return this._ontrack; |
+ }, |
+ set: function(f) { |
+ if (this._ontrack) { |
+ this.removeEventListener('track', this._ontrack); |
+ this.removeEventListener('addstream', this._ontrackpoly); |
+ } |
+ this.addEventListener('track', this._ontrack = f); |
+ this.addEventListener('addstream', this._ontrackpoly = function(e) { |
+ e.stream.getTracks().forEach(function(track) { |
+ var event = new Event('track'); |
+ event.track = track; |
+ event.receiver = {track: track}; |
+ event.streams = [e.stream]; |
+ this.dispatchEvent(event); |
+ }.bind(this)); |
+ }.bind(this)); |
+ } |
+ }); |
+ } |
+ }, |
+ |
+ shimSourceObject: function() { |
+ // Firefox has supported mozSrcObject since FF22, unprefixed in 42. |
+ if (typeof window === 'object') { |
+ if (window.HTMLMediaElement && |
+ !('srcObject' in window.HTMLMediaElement.prototype)) { |
+ // Shim the srcObject property, once, when HTMLMediaElement is found. |
+ Object.defineProperty(window.HTMLMediaElement.prototype, 'srcObject', { |
+ get: function() { |
+ return this.mozSrcObject; |
+ }, |
+ set: function(stream) { |
+ this.mozSrcObject = stream; |
+ } |
+ }); |
+ } |
+ } |
+ }, |
+ |
+ shimPeerConnection: function() { |
+ if (typeof window !== 'object' || !(window.RTCPeerConnection || |
+ window.mozRTCPeerConnection)) { |
+ return; // probably media.peerconnection.enabled=false in about:config |
+ } |
+ // The RTCPeerConnection object. |
+ if (!window.RTCPeerConnection) { |
+ window.RTCPeerConnection = function(pcConfig, pcConstraints) { |
+ if (browserDetails.version < 38) { |
+ // .urls is not supported in FF < 38. |
+ // create RTCIceServers with a single url. |
+ if (pcConfig && pcConfig.iceServers) { |
+ var newIceServers = []; |
+ for (var i = 0; i < pcConfig.iceServers.length; i++) { |
+ var server = pcConfig.iceServers[i]; |
+ if (server.hasOwnProperty('urls')) { |
+ for (var j = 0; j < server.urls.length; j++) { |
+ var newServer = { |
+ url: server.urls[j] |
+ }; |
+ if (server.urls[j].indexOf('turn') === 0) { |
+ newServer.username = server.username; |
+ newServer.credential = server.credential; |
+ } |
+ newIceServers.push(newServer); |
+ } |
+ } else { |
+ newIceServers.push(pcConfig.iceServers[i]); |
+ } |
+ } |
+ pcConfig.iceServers = newIceServers; |
+ } |
+ } |
+ return new mozRTCPeerConnection(pcConfig, pcConstraints); |
+ }; |
+ window.RTCPeerConnection.prototype = mozRTCPeerConnection.prototype; |
+ |
+ // wrap static methods. Currently just generateCertificate. |
+ if (mozRTCPeerConnection.generateCertificate) { |
+ Object.defineProperty(window.RTCPeerConnection, 'generateCertificate', { |
+ get: function() { |
+ return mozRTCPeerConnection.generateCertificate; |
+ } |
+ }); |
+ } |
+ |
+ window.RTCSessionDescription = mozRTCSessionDescription; |
+ window.RTCIceCandidate = mozRTCIceCandidate; |
+ } |
+ |
+ // shim away need for obsolete RTCIceCandidate/RTCSessionDescription. |
+ ['setLocalDescription', 'setRemoteDescription', 'addIceCandidate'] |
+ .forEach(function(method) { |
+ var nativeMethod = RTCPeerConnection.prototype[method]; |
+ RTCPeerConnection.prototype[method] = function() { |
+ arguments[0] = new ((method === 'addIceCandidate') ? |
+ RTCIceCandidate : RTCSessionDescription)(arguments[0]); |
+ return nativeMethod.apply(this, arguments); |
+ }; |
+ }); |
+ |
+ // support for addIceCandidate(null or undefined) |
+ var nativeAddIceCandidate = |
+ RTCPeerConnection.prototype.addIceCandidate; |
+ RTCPeerConnection.prototype.addIceCandidate = function() { |
+ if (!arguments[0]) { |
+ if (arguments[1]) { |
+ arguments[1].apply(null); |
+ } |
+ return Promise.resolve(); |
+ } |
+ return nativeAddIceCandidate.apply(this, arguments); |
+ }; |
+ |
+ // shim getStats with maplike support |
+ var makeMapStats = function(stats) { |
+ var map = new Map(); |
+ Object.keys(stats).forEach(function(key) { |
+ map.set(key, stats[key]); |
+ map[key] = stats[key]; |
+ }); |
+ return map; |
+ }; |
+ |
+ var modernStatsTypes = { |
+ inboundrtp: 'inbound-rtp', |
+ outboundrtp: 'outbound-rtp', |
+ candidatepair: 'candidate-pair', |
+ localcandidate: 'local-candidate', |
+ remotecandidate: 'remote-candidate' |
+ }; |
+ |
+ var nativeGetStats = RTCPeerConnection.prototype.getStats; |
+ RTCPeerConnection.prototype.getStats = function(selector, onSucc, onErr) { |
+ return nativeGetStats.apply(this, [selector || null]) |
+ .then(function(stats) { |
+ if (browserDetails.version < 48) { |
+ stats = makeMapStats(stats); |
+ } |
+ if (browserDetails.version < 53 && !onSucc) { |
+ // Shim only promise getStats with spec-hyphens in type names |
+ // Leave callback version alone; misc old uses of forEach before Map |
+ try { |
+ stats.forEach(function(stat) { |
+ stat.type = modernStatsTypes[stat.type] || stat.type; |
+ }); |
+ } catch (e) { |
+ if (e.name !== 'TypeError') { |
+ throw e; |
+ } |
+ // Avoid TypeError: "type" is read-only, in old versions. 34-43ish |
+ stats.forEach(function(stat, i) { |
+ stats.set(i, Object.assign({}, stat, { |
+ type: modernStatsTypes[stat.type] || stat.type |
+ })); |
+ }); |
+ } |
+ } |
+ return stats; |
+ }) |
+ .then(onSucc, onErr); |
+ }; |
+ } |
+}; |
+ |
+// Expose public methods. |
+module.exports = { |
+ shimOnTrack: firefoxShim.shimOnTrack, |
+ shimSourceObject: firefoxShim.shimSourceObject, |
+ shimPeerConnection: firefoxShim.shimPeerConnection, |
+ shimGetUserMedia: require('./getusermedia') |
+}; |
+ |
+},{"../utils":10,"./getusermedia":8}],8:[function(require,module,exports){ |
+/* |
+ * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved. |
+ * |
+ * Use of this source code is governed by a BSD-style license |
+ * that can be found in the LICENSE file in the root of the source |
+ * tree. |
+ */ |
+ /* eslint-env node */ |
+'use strict'; |
+ |
+var logging = require('../utils').log; |
+var browserDetails = require('../utils').browserDetails; |
+ |
+// Expose public methods. |
+module.exports = function() { |
+ var shimError_ = function(e) { |
+ return { |
+ name: { |
+ SecurityError: 'NotAllowedError', |
+ PermissionDeniedError: 'NotAllowedError' |
+ }[e.name] || e.name, |
+ message: { |
+ 'The operation is insecure.': 'The request is not allowed by the ' + |
+ 'user agent or the platform in the current context.' |
+ }[e.message] || e.message, |
+ constraint: e.constraint, |
+ toString: function() { |
+ return this.name + (this.message && ': ') + this.message; |
+ } |
+ }; |
+ }; |
+ |
+ // getUserMedia constraints shim. |
+ var getUserMedia_ = function(constraints, onSuccess, onError) { |
+ var constraintsToFF37_ = function(c) { |
+ if (typeof c !== 'object' || c.require) { |
+ return c; |
+ } |
+ var require = []; |
+ Object.keys(c).forEach(function(key) { |
+ if (key === 'require' || key === 'advanced' || key === 'mediaSource') { |
+ return; |
+ } |
+ var r = c[key] = (typeof c[key] === 'object') ? |
+ c[key] : {ideal: c[key]}; |
+ if (r.min !== undefined || |
+ r.max !== undefined || r.exact !== undefined) { |
+ require.push(key); |
+ } |
+ if (r.exact !== undefined) { |
+ if (typeof r.exact === 'number') { |
+ r. min = r.max = r.exact; |
+ } else { |
+ c[key] = r.exact; |
+ } |
+ delete r.exact; |
+ } |
+ if (r.ideal !== undefined) { |
+ c.advanced = c.advanced || []; |
+ var oc = {}; |
+ if (typeof r.ideal === 'number') { |
+ oc[key] = {min: r.ideal, max: r.ideal}; |
+ } else { |
+ oc[key] = r.ideal; |
+ } |
+ c.advanced.push(oc); |
+ delete r.ideal; |
+ if (!Object.keys(r).length) { |
+ delete c[key]; |
+ } |
+ } |
+ }); |
+ if (require.length) { |
+ c.require = require; |
+ } |
+ return c; |
+ }; |
+ constraints = JSON.parse(JSON.stringify(constraints)); |
+ if (browserDetails.version < 38) { |
+ logging('spec: ' + JSON.stringify(constraints)); |
+ if (constraints.audio) { |
+ constraints.audio = constraintsToFF37_(constraints.audio); |
+ } |
+ if (constraints.video) { |
+ constraints.video = constraintsToFF37_(constraints.video); |
+ } |
+ logging('ff37: ' + JSON.stringify(constraints)); |
+ } |
+ return navigator.mozGetUserMedia(constraints, onSuccess, function(e) { |
+ onError(shimError_(e)); |
+ }); |
+ }; |
+ |
+ // Returns the result of getUserMedia as a Promise. |
+ var getUserMediaPromise_ = function(constraints) { |
+ return new Promise(function(resolve, reject) { |
+ getUserMedia_(constraints, resolve, reject); |
+ }); |
+ }; |
+ |
+ // Shim for mediaDevices on older versions. |
+ if (!navigator.mediaDevices) { |
+ navigator.mediaDevices = {getUserMedia: getUserMediaPromise_, |
+ addEventListener: function() { }, |
+ removeEventListener: function() { } |
+ }; |
+ } |
+ navigator.mediaDevices.enumerateDevices = |
+ navigator.mediaDevices.enumerateDevices || function() { |
+ return new Promise(function(resolve) { |
+ var infos = [ |
+ {kind: 'audioinput', deviceId: 'default', label: '', groupId: ''}, |
+ {kind: 'videoinput', deviceId: 'default', label: '', groupId: ''} |
+ ]; |
+ resolve(infos); |
+ }); |
+ }; |
+ |
+ if (browserDetails.version < 41) { |
+ // Work around http://bugzil.la/1169665 |
+ var orgEnumerateDevices = |
+ navigator.mediaDevices.enumerateDevices.bind(navigator.mediaDevices); |
+ navigator.mediaDevices.enumerateDevices = function() { |
+ return orgEnumerateDevices().then(undefined, function(e) { |
+ if (e.name === 'NotFoundError') { |
+ return []; |
+ } |
+ throw e; |
+ }); |
+ }; |
+ } |
+ if (browserDetails.version < 49) { |
+ var origGetUserMedia = navigator.mediaDevices.getUserMedia. |
+ bind(navigator.mediaDevices); |
+ navigator.mediaDevices.getUserMedia = function(c) { |
+ return origGetUserMedia(c).then(function(stream) { |
+ // Work around https://bugzil.la/802326 |
+ if (c.audio && !stream.getAudioTracks().length || |
+ c.video && !stream.getVideoTracks().length) { |
+ stream.getTracks().forEach(function(track) { |
+ track.stop(); |
+ }); |
+ throw new DOMException('The object can not be found here.', |
+ 'NotFoundError'); |
+ } |
+ return stream; |
+ }, function(e) { |
+ return Promise.reject(shimError_(e)); |
+ }); |
+ }; |
+ } |
+ navigator.getUserMedia = function(constraints, onSuccess, onError) { |
+ if (browserDetails.version < 44) { |
+ return getUserMedia_(constraints, onSuccess, onError); |
+ } |
+ // Replace Firefox 44+'s deprecation warning with unprefixed version. |
+ console.warn('navigator.getUserMedia has been replaced by ' + |
+ 'navigator.mediaDevices.getUserMedia'); |
+ navigator.mediaDevices.getUserMedia(constraints).then(onSuccess, onError); |
+ }; |
+}; |
+ |
+},{"../utils":10}],9:[function(require,module,exports){ |
+/* |
+ * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved. |
+ * |
+ * Use of this source code is governed by a BSD-style license |
+ * that can be found in the LICENSE file in the root of the source |
+ * tree. |
+ */ |
+'use strict'; |
+var safariShim = { |
+ // TODO: DrAlex, should be here, double check against LayoutTests |
+ // shimOnTrack: function() { }, |
+ |
+ // TODO: once the back-end for the mac port is done, add. |
+ // TODO: check for webkitGTK+ |
+ // shimPeerConnection: function() { }, |
+ |
+ shimGetUserMedia: function() { |
+ if (!navigator.getUserMedia) { |
+ if (navigator.webkitGetUserMedia) { |
+ navigator.getUserMedia = navigator.webkitGetUserMedia.bind(navigator); |
+ } else if (navigator.mediaDevices && |
+ navigator.mediaDevices.getUserMedia) { |
+ navigator.getUserMedia = function(constraints, cb, errcb) { |
+ navigator.mediaDevices.getUserMedia(constraints) |
+ .then(cb, errcb); |
+ }.bind(navigator); |
+ } |
+ } |
+ } |
+}; |
+ |
+// Expose public methods. |
+module.exports = { |
+ shimGetUserMedia: safariShim.shimGetUserMedia |
+ // TODO |
+ // shimOnTrack: safariShim.shimOnTrack, |
+ // shimPeerConnection: safariShim.shimPeerConnection |
+}; |
+ |
+},{}],10:[function(require,module,exports){ |
+/* |
+ * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved. |
+ * |
+ * Use of this source code is governed by a BSD-style license |
+ * that can be found in the LICENSE file in the root of the source |
+ * tree. |
+ */ |
+ /* eslint-env node */ |
+'use strict'; |
+ |
+var logDisabled_ = true; |
+ |
+// Utility methods. |
+var utils = { |
+ disableLog: function(bool) { |
+ if (typeof bool !== 'boolean') { |
+ return new Error('Argument type: ' + typeof bool + |
+ '. Please use a boolean.'); |
+ } |
+ logDisabled_ = bool; |
+ return (bool) ? 'adapter.js logging disabled' : |
+ 'adapter.js logging enabled'; |
+ }, |
+ |
+ log: function() { |
+ if (typeof window === 'object') { |
+ if (logDisabled_) { |
+ return; |
+ } |
+ if (typeof console !== 'undefined' && typeof console.log === 'function') { |
+ console.log.apply(console, arguments); |
+ } |
+ } |
+ }, |
+ |
+ /** |
+ * Extract browser version out of the provided user agent string. |
+ * |
+ * @param {!string} uastring userAgent string. |
+ * @param {!string} expr Regular expression used as match criteria. |
+ * @param {!number} pos position in the version string to be returned. |
+ * @return {!number} browser version. |
+ */ |
+ extractVersion: function(uastring, expr, pos) { |
+ var match = uastring.match(expr); |
+ return match && match.length >= pos && parseInt(match[pos], 10); |
+ }, |
+ |
+ /** |
+ * Browser detector. |
+ * |
+ * @return {object} result containing browser and version |
+ * properties. |
+ */ |
+ detectBrowser: function() { |
+ // Returned result object. |
+ var result = {}; |
+ result.browser = null; |
+ result.version = null; |
+ |
+ // Fail early if it's not a browser |
+ if (typeof window === 'undefined' || !window.navigator) { |
+ result.browser = 'Not a browser.'; |
+ return result; |
+ } |
+ |
+ // Firefox. |
+ if (navigator.mozGetUserMedia) { |
+ result.browser = 'firefox'; |
+ result.version = this.extractVersion(navigator.userAgent, |
+ /Firefox\/(\d+)\./, 1); |
+ } else if (navigator.webkitGetUserMedia) { |
+ // Chrome, Chromium, Webview, Opera, all use the chrome shim for now |
+ if (window.webkitRTCPeerConnection) { |
+ result.browser = 'chrome'; |
+ result.version = this.extractVersion(navigator.userAgent, |
+ /Chrom(e|ium)\/(\d+)\./, 2); |
+ } else { // Safari (in an unpublished version) or unknown webkit-based. |
+ if (navigator.userAgent.match(/Version\/(\d+).(\d+)/)) { |
+ result.browser = 'safari'; |
+ result.version = this.extractVersion(navigator.userAgent, |
+ /AppleWebKit\/(\d+)\./, 1); |
+ } else { // unknown webkit-based browser. |
+ result.browser = 'Unsupported webkit-based browser ' + |
+ 'with GUM support but no WebRTC support.'; |
+ return result; |
+ } |
+ } |
+ } else if (navigator.mediaDevices && |
+ navigator.userAgent.match(/Edge\/(\d+).(\d+)$/)) { // Edge. |
+ result.browser = 'edge'; |
+ result.version = this.extractVersion(navigator.userAgent, |
+ /Edge\/(\d+).(\d+)$/, 2); |
+ } else if (navigator.mediaDevices && |
+ navigator.userAgent.match(/AppleWebKit\/(\d+)\./)) { |
+ // Safari, with webkitGetUserMedia removed. |
+ result.browser = 'safari'; |
+ result.version = this.extractVersion(navigator.userAgent, |
+ /AppleWebKit\/(\d+)\./, 1); |
+ } else { // Default fallthrough: not supported. |
+ result.browser = 'Not a supported browser.'; |
+ return result; |
+ } |
+ |
+ return result; |
+ }, |
+ |
+ // shimCreateObjectURL must be called before shimSourceObject to avoid loop. |
+ |
+ shimCreateObjectURL: function() { |
+ if (!(typeof window === 'object' && window.HTMLMediaElement && |
+ 'srcObject' in window.HTMLMediaElement.prototype)) { |
+ // Only shim CreateObjectURL using srcObject if srcObject exists. |
+ return undefined; |
+ } |
+ |
+ var nativeCreateObjectURL = URL.createObjectURL.bind(URL); |
+ var nativeRevokeObjectURL = URL.revokeObjectURL.bind(URL); |
+ var streams = new Map(), newId = 0; |
+ |
+ URL.createObjectURL = function(stream) { |
+ if ('getTracks' in stream) { |
+ var url = 'polyblob:' + (++newId); |
+ streams.set(url, stream); |
+ console.log('URL.createObjectURL(stream) is deprecated! ' + |
+ 'Use elem.srcObject = stream instead!'); |
+ return url; |
+ } |
+ return nativeCreateObjectURL(stream); |
+ }; |
+ URL.revokeObjectURL = function(url) { |
+ nativeRevokeObjectURL(url); |
+ streams.delete(url); |
+ }; |
+ |
+ var dsc = Object.getOwnPropertyDescriptor(window.HTMLMediaElement.prototype, |
+ 'src'); |
+ Object.defineProperty(window.HTMLMediaElement.prototype, 'src', { |
+ get: function() { |
+ return dsc.get.apply(this); |
+ }, |
+ set: function(url) { |
+ this.srcObject = streams.get(url) || null; |
+ return dsc.set.apply(this, [url]); |
+ } |
+ }); |
+ |
+ var nativeSetAttribute = HTMLMediaElement.prototype.setAttribute; |
+ HTMLMediaElement.prototype.setAttribute = function() { |
+ if (arguments.length === 2 && |
+ ('' + arguments[0]).toLowerCase() === 'src') { |
+ this.srcObject = streams.get(arguments[1]) || null; |
+ } |
+ return nativeSetAttribute.apply(this, arguments); |
+ }; |
+ } |
+}; |
+ |
+// Export. |
+module.exports = { |
+ log: utils.log, |
+ disableLog: utils.disableLog, |
+ browserDetails: utils.detectBrowser(), |
+ extractVersion: utils.extractVersion, |
+ shimCreateObjectURL: utils.shimCreateObjectURL, |
+ detectBrowser: utils.detectBrowser.bind(utils) |
+}; |
+ |
+},{}]},{},[2])(2) |
+}); |