From a4ab9a0a6cd22b11b52200b66c0417d9379e3960 Mon Sep 17 00:00:00 2001
From: panlinlin <648540858@qq.com>
Date: 星期日, 11 四月 2021 14:44:27 +0800
Subject: [PATCH] 集成rtc播放器
---
web_src/src/components/dialog/rtcPlayer.vue | 106
src/main/java/com/genersoft/iot/vmp/media/zlm/ZLMHttpHookListener.java | 40
web_src/src/components/dialog/devicePlayer.vue | 4
web_src/static/js/ZLMRTCClient.js | 7546 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
src/main/java/com/genersoft/iot/vmp/common/StreamInfo.java | 9
src/main/java/com/genersoft/iot/vmp/service/impl/MediaServiceImpl.java | 2
web_src/index.html | 3
7 files changed, 7,691 insertions(+), 19 deletions(-)
diff --git a/src/main/java/com/genersoft/iot/vmp/common/StreamInfo.java b/src/main/java/com/genersoft/iot/vmp/common/StreamInfo.java
index 1c24eb9..6def294 100644
--- a/src/main/java/com/genersoft/iot/vmp/common/StreamInfo.java
+++ b/src/main/java/com/genersoft/iot/vmp/common/StreamInfo.java
@@ -18,6 +18,7 @@
private String ws_ts;
private String rtmp;
private String rtsp;
+ private String rtc;
private JSONArray tracks;
public String getApp() {
@@ -139,4 +140,12 @@
public void setStreamId(String streamId) {
this.streamId = streamId;
}
+
+ public String getRtc() {
+ return rtc;
+ }
+
+ public void setRtc(String rtc) {
+ this.rtc = rtc;
+ }
}
diff --git a/src/main/java/com/genersoft/iot/vmp/media/zlm/ZLMHttpHookListener.java b/src/main/java/com/genersoft/iot/vmp/media/zlm/ZLMHttpHookListener.java
index 0065b21..878e016 100644
--- a/src/main/java/com/genersoft/iot/vmp/media/zlm/ZLMHttpHookListener.java
+++ b/src/main/java/com/genersoft/iot/vmp/media/zlm/ZLMHttpHookListener.java
@@ -4,6 +4,7 @@
import java.util.UUID;
import com.alibaba.fastjson.JSON;
+import com.alibaba.fastjson.JSONArray;
import com.genersoft.iot.vmp.common.StreamInfo;
import com.genersoft.iot.vmp.conf.MediaServerConfig;
import com.genersoft.iot.vmp.gb28181.bean.Device;
@@ -239,26 +240,33 @@
String app = json.getString("app");
String streamId = json.getString("stream");
String schema = json.getString("schema");
- boolean regist = json.getBoolean("regist");
+ JSONArray tracks = json.getJSONArray("tracks");
+ String regist = json.getString("regist");
+ if (tracks != null) {
+ System.out.println("222222" + schema);
+ }
+ if ("rtmp".equals(schema)){
- if ("rtp".equals(app) && !regist ) {
- StreamInfo streamInfo = redisCatchStorage.queryPlayByStreamId(streamId);
- if (streamInfo!=null){
- redisCatchStorage.stopPlay(streamInfo);
- storager.stopPlay(streamInfo.getDeviceID(), streamInfo.getChannelId());
- }else{
- streamInfo = redisCatchStorage.queryPlaybackByStreamId(streamId);
- redisCatchStorage.stopPlayback(streamInfo);
- }
- }else {
- if (!"rtp".equals(app) && "rtmp".equals(schema)){
- if (regist) {
- zlmMediaListManager.addMedia(app, streamId);
- }else {
- zlmMediaListManager.removeMedia(app, streamId);
+ if ("rtp".equals(app) && regist != null ) {
+ StreamInfo streamInfo = redisCatchStorage.queryPlayByStreamId(streamId);
+ if (streamInfo!=null){
+ redisCatchStorage.stopPlay(streamInfo);
+ storager.stopPlay(streamInfo.getDeviceID(), streamInfo.getChannelId());
+ }else{
+ streamInfo = redisCatchStorage.queryPlaybackByStreamId(streamId);
+ redisCatchStorage.stopPlayback(streamInfo);
+ }
+ }else {
+ if (!"rtp".equals(app) ){
+ if (regist == null) {
+ zlmMediaListManager.addMedia(app, streamId);
+ }else {
+ zlmMediaListManager.removeMedia(app, streamId);
+ }
}
}
}
+
JSONObject ret = new JSONObject();
ret.put("code", 0);
ret.put("msg", "success");
diff --git a/src/main/java/com/genersoft/iot/vmp/service/impl/MediaServiceImpl.java b/src/main/java/com/genersoft/iot/vmp/service/impl/MediaServiceImpl.java
index f721b90..3e0297a 100644
--- a/src/main/java/com/genersoft/iot/vmp/service/impl/MediaServiceImpl.java
+++ b/src/main/java/com/genersoft/iot/vmp/service/impl/MediaServiceImpl.java
@@ -42,6 +42,8 @@
streamInfoResult.setWs_fmp4(String.format("ws://%s:%s/%s/%s.live.mp4", mediaInfo.getWanIp(), mediaInfo.getHttpPort(), app, stream));
streamInfoResult.setTs(String.format("http://%s:%s/%s/%s.live.ts", mediaInfo.getWanIp(), mediaInfo.getHttpPort(), app, stream));
streamInfoResult.setWs_ts(String.format("ws://%s:%s/%s/%s.live.ts", mediaInfo.getWanIp(), mediaInfo.getHttpPort(), app, stream));
+ streamInfoResult.setRtc(String.format("http://%s:%s/index/api/webrtc?app=%s&stream=%s&type=play", mediaInfo.getWanIp(), mediaInfo.getHttpPort(), app, stream));
+
return streamInfoResult;
}
diff --git a/web_src/index.html b/web_src/index.html
index 8b26e72..9cdf57e 100644
--- a/web_src/index.html
+++ b/web_src/index.html
@@ -6,7 +6,8 @@
<title>鍥芥爣28181</title>
</head>
<body>
- <script type="text/javascript" src="./js/EasyWasmPlayer.js"></script>
+ <!-- <script type="text/javascript" src="./js/EasyWasmPlayer.js"></script> -->
+ <script type="text/javascript" src="/static/js/ZLMRTCClient.js"></script>
<script type="text/javascript" src="//api.map.baidu.com/api?v=2.0&ak=rk73w8dv1rkE4UdZsataG68VarhYQzrx&s=1"></script>
<div id="app"></div>
<!-- built files will be auto injected -->
diff --git a/web_src/src/components/dialog/devicePlayer.vue b/web_src/src/components/dialog/devicePlayer.vue
index 6780095..9edd504 100644
--- a/web_src/src/components/dialog/devicePlayer.vue
+++ b/web_src/src/components/dialog/devicePlayer.vue
@@ -136,7 +136,7 @@
</template>
<script>
-import player from '../dialog/player.vue'
+import player from '../dialog/rtcPlayer.vue'
export default {
name: 'devicePlayer',
props: {},
@@ -250,7 +250,7 @@
this.hasaudio = hasAudio;
this.isLoging = false;
- this.videoUrl = streamInfo.ws_flv;
+ this.videoUrl = streamInfo.rtc;
this.streamId = streamInfo.streamId;
this.app = streamInfo.app;
this.playFromStreamInfo(false, streamInfo)
diff --git a/web_src/src/components/dialog/rtcPlayer.vue b/web_src/src/components/dialog/rtcPlayer.vue
new file mode 100644
index 0000000..6208100
--- /dev/null
+++ b/web_src/src/components/dialog/rtcPlayer.vue
@@ -0,0 +1,106 @@
+<template>
+ <div id="rtcPlayer">
+ <video id='webRtcPlayerBox' controls autoplay style="text-align:left;">
+ Your browser is too old which doesn't support HTML5 video.
+ </video>
+ </div>
+</template>
+
+<script>
+export default {
+ name: 'rtcPlayer',
+ data() {
+ return {
+ webrtcPlayer: null
+ };
+ },
+ props: ['videoUrl', 'error', 'hasaudio'],
+ mounted () {
+ this.$nextTick(() =>{
+ console.log("鍒濆鍖栨椂鐨勫湴鍧�涓�: " + this.videoUrl)
+ this.play(this.videoUrl)
+ })
+ },
+ watch:{
+ videoUrl(newData, oldData){
+ this.pause();
+ this.play(newData);
+ },
+ immediate:true
+ },
+ methods: {
+ play: function (url) {
+ this.webrtcPlayer = new ZLMRTCClient.Endpoint({
+ element: document.getElementById('webRtcPlayerBox'),// video 鏍囩
+ debug: true,// 鏄惁鎵撳嵃鏃ュ織
+ zlmsdpUrl: url,//娴佸湴鍧�
+ simulecast: false,
+ useCamera: false,
+ audioEnable: false,
+ videoEnable: false,
+ recvOnly: true,
+ })
+ this.webrtcPlayer.on(ZLMRTCClient.Events.WEBRTC_ICE_CANDIDATE_ERROR,(e)=>{// ICE 鍗忓晢鍑洪敊
+ console.error('ICE 鍗忓晢鍑洪敊')
+ this.eventcallbacK("ICE ERROR", "ICE 鍗忓晢鍑洪敊")
+ });
+
+ this.webrtcPlayer.on(ZLMRTCClient.Events.WEBRTC_ON_REMOTE_STREAMS,(e)=>{//鑾峰彇鍒颁簡杩滅娴侊紝鍙互鎾斁
+ console.error('鎾斁鎴愬姛',e.streams)
+ this.eventcallbacK("playing", "鎾斁鎴愬姛")
+ });
+
+ this.webrtcPlayer.on(ZLMRTCClient.Events.WEBRTC_OFFER_ANWSER_EXCHANGE_FAILED,(e)=>{// offer anwser 浜ゆ崲澶辫触
+ console.error('offer anwser 浜ゆ崲澶辫触',e)
+ this.eventcallbacK("OFFER ANSWER ERROR ", "offer anwser 浜ゆ崲澶辫触")
+ if (e.code ==-400 && e.msg=="娴佷笉瀛樺湪"){
+ console.log("111111")
+ setTimeout(()=>{
+ this.webrtcPlayer.close();
+ this.play(url)
+ }, 100)
+
+ }
+ });
+
+ this.webrtcPlayer.on(ZLMRTCClient.Events.WEBRTC_ON_LOCAL_STREAM,(s)=>{// 鑾峰彇鍒颁簡鏈湴娴�
+
+ // document.getElementById('selfVideo').srcObject=s;
+ this.eventcallbacK("LOCAL STREAM", "鑾峰彇鍒颁簡鏈湴娴�")
+ });
+
+ },
+ pause: function () {
+ if (this.webrtcPlayer != null) {
+ this.webrtcPlayer.close();
+ this.webrtcPlayer = null;
+ }
+
+ },
+ eventcallbacK: function(type, message) {
+ console.log("player 浜嬩欢鍥炶皟")
+ console.log(type)
+ console.log(message)
+ }
+ },
+}
+</script>
+
+<style>
+ .LodingTitle {
+ min-width: 70px;
+ }
+ #rtcPlayer{
+ width: 100%;
+ }
+ #webRtcPlayerBox{
+ width: 100%;
+ max-height: 56vh;
+ background-color: #000;
+ }
+ /* 闅愯棌logo */
+ /* .iconqingxiLOGO {
+ display: none !important;
+ } */
+
+</style>
\ No newline at end of file
diff --git a/web_src/static/js/ZLMRTCClient.js b/web_src/static/js/ZLMRTCClient.js
new file mode 100644
index 0000000..a8fd2fa
--- /dev/null
+++ b/web_src/static/js/ZLMRTCClient.js
@@ -0,0 +1,7546 @@
+var ZLMRTCClient = (function (exports) {
+ 'use strict';
+
+ const Events$1 = {
+ WEBRTC_NOT_SUPPORT: 'WEBRTC_NOT_SUPPORT',
+ WEBRTC_ICE_CANDIDATE_ERROR: 'WEBRTC_ICE_CANDIDATE_ERROR',
+ WEBRTC_OFFER_ANWSER_EXCHANGE_FAILED: 'WEBRTC_OFFER_ANWSER_EXCHANGE_FAILED',
+ WEBRTC_ON_REMOTE_STREAMS: 'WEBRTC_ON_REMOTE_STREAMS',
+ WEBRTC_ON_LOCAL_STREAM: 'WEBRTC_ON_LOCAL_STREAM'
+ };
+
+ const VERSION = '1.0.1';
+ const BUILD_DATE = 'Mon Apr 05 2021 10:22:48 GMT+0800 (涓浗鏍囧噯鏃堕棿)';
+
+ // Copyright (C) <2018> Intel Corporation
+ //
+ // SPDX-License-Identifier: Apache-2.0
+ // eslint-disable-next-line require-jsdoc
+ function isFirefox() {
+ return window.navigator.userAgent.match('Firefox') !== null;
+ } // eslint-disable-next-line require-jsdoc
+
+ function isChrome() {
+ return window.navigator.userAgent.match('Chrome') !== null;
+ } // eslint-disable-next-line require-jsdoc
+
+ function isEdge() {
+ return window.navigator.userAgent.match(/Edge\/(\d+).(\d+)$/) !== null;
+ } // eslint-disable-next-line require-jsdoc
+
+ // Copyright (C) <2018> Intel Corporation
+ /**
+ * @class AudioSourceInfo
+ * @classDesc Source info about an audio track. Values: 'mic', 'screen-cast', 'file', 'mixed'.
+ * @memberOf Owt.Base
+ * @readonly
+ * @enum {string}
+ */
+
+ const AudioSourceInfo = {
+ MIC: 'mic',
+ SCREENCAST: 'screen-cast',
+ FILE: 'file',
+ MIXED: 'mixed'
+ };
+ /**
+ * @class VideoSourceInfo
+ * @classDesc Source info about a video track. Values: 'camera', 'screen-cast', 'file', 'mixed'.
+ * @memberOf Owt.Base
+ * @readonly
+ * @enum {string}
+ */
+
+ const VideoSourceInfo = {
+ CAMERA: 'camera',
+ SCREENCAST: 'screen-cast',
+ FILE: 'file',
+ MIXED: 'mixed'
+ };
+ /**
+ * @class TrackKind
+ * @classDesc Kind of a track. Values: 'audio' for audio track, 'video' for video track, 'av' for both audio and video tracks.
+ * @memberOf Owt.Base
+ * @readonly
+ * @enum {string}
+ */
+
+ const TrackKind = {
+ /**
+ * Audio tracks.
+ * @type string
+ */
+ AUDIO: 'audio',
+
+ /**
+ * Video tracks.
+ * @type string
+ */
+ VIDEO: 'video',
+
+ /**
+ * Both audio and video tracks.
+ * @type string
+ */
+ AUDIO_AND_VIDEO: 'av'
+ };
+ /**
+ * @class Resolution
+ * @memberOf Owt.Base
+ * @classDesc The Resolution defines the size of a rectangle.
+ * @constructor
+ * @param {number} width
+ * @param {number} height
+ */
+
+ class Resolution {
+ // eslint-disable-next-line require-jsdoc
+ constructor(width, height) {
+ /**
+ * @member {number} width
+ * @instance
+ * @memberof Owt.Base.Resolution
+ */
+ this.width = width;
+ /**
+ * @member {number} height
+ * @instance
+ * @memberof Owt.Base.Resolution
+ */
+
+ this.height = height;
+ }
+
+ }
+
+ /*
+ * 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.
+ */
+
+ let logDisabled_ = true;
+ let deprecationWarnings_ = true;
+
+ /**
+ * 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.
+ */
+ function extractVersion(uastring, expr, pos) {
+ const match = uastring.match(expr);
+ return match && match.length >= pos && parseInt(match[pos], 10);
+ }
+
+ // Wraps the peerconnection event eventNameToWrap in a function
+ // which returns the modified event object (or false to prevent
+ // the event).
+ function wrapPeerConnectionEvent(window, eventNameToWrap, wrapper) {
+ if (!window.RTCPeerConnection) {
+ return;
+ }
+ const proto = window.RTCPeerConnection.prototype;
+ const nativeAddEventListener = proto.addEventListener;
+ proto.addEventListener = function(nativeEventName, cb) {
+ if (nativeEventName !== eventNameToWrap) {
+ return nativeAddEventListener.apply(this, arguments);
+ }
+ const wrappedCallback = (e) => {
+ const modifiedEvent = wrapper(e);
+ if (modifiedEvent) {
+ if (cb.handleEvent) {
+ cb.handleEvent(modifiedEvent);
+ } else {
+ cb(modifiedEvent);
+ }
+ }
+ };
+ this._eventMap = this._eventMap || {};
+ if (!this._eventMap[eventNameToWrap]) {
+ this._eventMap[eventNameToWrap] = new Map();
+ }
+ this._eventMap[eventNameToWrap].set(cb, wrappedCallback);
+ return nativeAddEventListener.apply(this, [nativeEventName,
+ wrappedCallback]);
+ };
+
+ const nativeRemoveEventListener = proto.removeEventListener;
+ proto.removeEventListener = function(nativeEventName, cb) {
+ if (nativeEventName !== eventNameToWrap || !this._eventMap
+ || !this._eventMap[eventNameToWrap]) {
+ return nativeRemoveEventListener.apply(this, arguments);
+ }
+ if (!this._eventMap[eventNameToWrap].has(cb)) {
+ return nativeRemoveEventListener.apply(this, arguments);
+ }
+ const unwrappedCb = this._eventMap[eventNameToWrap].get(cb);
+ this._eventMap[eventNameToWrap].delete(cb);
+ if (this._eventMap[eventNameToWrap].size === 0) {
+ delete this._eventMap[eventNameToWrap];
+ }
+ if (Object.keys(this._eventMap).length === 0) {
+ delete this._eventMap;
+ }
+ return nativeRemoveEventListener.apply(this, [nativeEventName,
+ unwrappedCb]);
+ };
+
+ Object.defineProperty(proto, 'on' + eventNameToWrap, {
+ get() {
+ return this['_on' + eventNameToWrap];
+ },
+ set(cb) {
+ if (this['_on' + eventNameToWrap]) {
+ this.removeEventListener(eventNameToWrap,
+ this['_on' + eventNameToWrap]);
+ delete this['_on' + eventNameToWrap];
+ }
+ if (cb) {
+ this.addEventListener(eventNameToWrap,
+ this['_on' + eventNameToWrap] = cb);
+ }
+ },
+ enumerable: true,
+ configurable: true
+ });
+ }
+
+ function disableLog(bool) {
+ if (typeof bool !== 'boolean') {
+ return new Error('Argument type: ' + typeof bool +
+ '. Please use a boolean.');
+ }
+ logDisabled_ = bool;
+ return (bool) ? 'adapter.js logging disabled' :
+ 'adapter.js logging enabled';
+ }
+
+ /**
+ * Disable or enable deprecation warnings
+ * @param {!boolean} bool set to true to disable warnings.
+ */
+ function disableWarnings(bool) {
+ if (typeof bool !== 'boolean') {
+ return new Error('Argument type: ' + typeof bool +
+ '. Please use a boolean.');
+ }
+ deprecationWarnings_ = !bool;
+ return 'adapter.js deprecation warnings ' + (bool ? 'disabled' : 'enabled');
+ }
+
+ function log$1() {
+ if (typeof window === 'object') {
+ if (logDisabled_) {
+ return;
+ }
+ if (typeof console !== 'undefined' && typeof console.log === 'function') {
+ console.log.apply(console, arguments);
+ }
+ }
+ }
+
+ /**
+ * Shows a deprecation warning suggesting the modern and spec-compatible API.
+ */
+ function deprecated(oldMethod, newMethod) {
+ if (!deprecationWarnings_) {
+ return;
+ }
+ console.warn(oldMethod + ' is deprecated, please use ' + newMethod +
+ ' instead.');
+ }
+
+ /**
+ * Browser detector.
+ *
+ * @return {object} result containing browser and version
+ * properties.
+ */
+ function detectBrowser(window) {
+ // Returned result object.
+ const result = {browser: null, version: null};
+
+ // Fail early if it's not a browser
+ if (typeof window === 'undefined' || !window.navigator) {
+ result.browser = 'Not a browser.';
+ return result;
+ }
+
+ const {navigator} = window;
+
+ if (navigator.mozGetUserMedia) { // Firefox.
+ result.browser = 'firefox';
+ result.version = extractVersion(navigator.userAgent,
+ /Firefox\/(\d+)\./, 1);
+ } else if (navigator.webkitGetUserMedia ||
+ (window.isSecureContext === false && window.webkitRTCPeerConnection &&
+ !window.RTCIceGatherer)) {
+ // Chrome, Chromium, Webview, Opera.
+ // Version matches Chrome/WebRTC version.
+ // Chrome 74 removed webkitGetUserMedia on http as well so we need the
+ // more complicated fallback to webkitRTCPeerConnection.
+ result.browser = 'chrome';
+ result.version = extractVersion(navigator.userAgent,
+ /Chrom(e|ium)\/(\d+)\./, 2);
+ } else if (navigator.mediaDevices &&
+ navigator.userAgent.match(/Edge\/(\d+).(\d+)$/)) { // Edge.
+ result.browser = 'edge';
+ result.version = extractVersion(navigator.userAgent,
+ /Edge\/(\d+).(\d+)$/, 2);
+ } else if (window.RTCPeerConnection &&
+ navigator.userAgent.match(/AppleWebKit\/(\d+)\./)) { // Safari.
+ result.browser = 'safari';
+ result.version = extractVersion(navigator.userAgent,
+ /AppleWebKit\/(\d+)\./, 1);
+ result.supportsUnifiedPlan = window.RTCRtpTransceiver &&
+ 'currentDirection' in window.RTCRtpTransceiver.prototype;
+ } else { // Default fallthrough: not supported.
+ result.browser = 'Not a supported browser.';
+ return result;
+ }
+
+ return result;
+ }
+
+ /**
+ * Checks if something is an object.
+ *
+ * @param {*} val The something you want to check.
+ * @return true if val is an object, false otherwise.
+ */
+ function isObject$1(val) {
+ return Object.prototype.toString.call(val) === '[object Object]';
+ }
+
+ /**
+ * Remove all empty objects and undefined values
+ * from a nested object -- an enhanced and vanilla version
+ * of Lodash's `compact`.
+ */
+ function compactObject(data) {
+ if (!isObject$1(data)) {
+ return data;
+ }
+
+ return Object.keys(data).reduce(function(accumulator, key) {
+ const isObj = isObject$1(data[key]);
+ const value = isObj ? compactObject(data[key]) : data[key];
+ const isEmptyObject = isObj && !Object.keys(value).length;
+ if (value === undefined || isEmptyObject) {
+ return accumulator;
+ }
+ return Object.assign(accumulator, {[key]: value});
+ }, {});
+ }
+
+ /* iterates the stats graph recursively. */
+ function walkStats(stats, base, resultSet) {
+ if (!base || resultSet.has(base.id)) {
+ return;
+ }
+ resultSet.set(base.id, base);
+ Object.keys(base).forEach(name => {
+ if (name.endsWith('Id')) {
+ walkStats(stats, stats.get(base[name]), resultSet);
+ } else if (name.endsWith('Ids')) {
+ base[name].forEach(id => {
+ walkStats(stats, stats.get(id), resultSet);
+ });
+ }
+ });
+ }
+
+ /* filter getStats for a sender/receiver track. */
+ function filterStats(result, track, outbound) {
+ const streamStatsType = outbound ? 'outbound-rtp' : 'inbound-rtp';
+ const filteredResult = new Map();
+ if (track === null) {
+ return filteredResult;
+ }
+ const trackStats = [];
+ result.forEach(value => {
+ if (value.type === 'track' &&
+ value.trackIdentifier === track.id) {
+ trackStats.push(value);
+ }
+ });
+ trackStats.forEach(trackStat => {
+ result.forEach(stats => {
+ if (stats.type === streamStatsType && stats.trackId === trackStat.id) {
+ walkStats(result, stats, filteredResult);
+ }
+ });
+ });
+ return filteredResult;
+ }
+
+ /*
+ * 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.
+ */
+ const logging = log$1;
+
+ function shimGetUserMedia$3(window, browserDetails) {
+ const navigator = window && window.navigator;
+
+ if (!navigator.mediaDevices) {
+ return;
+ }
+
+ const constraintsToChrome_ = function(c) {
+ if (typeof c !== 'object' || c.mandatory || c.optional) {
+ return c;
+ }
+ const cc = {};
+ Object.keys(c).forEach(key => {
+ if (key === 'require' || key === 'advanced' || key === 'mediaSource') {
+ return;
+ }
+ const r = (typeof c[key] === 'object') ? c[key] : {ideal: c[key]};
+ if (r.exact !== undefined && typeof r.exact === 'number') {
+ r.min = r.max = r.exact;
+ }
+ const 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 || [];
+ let 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(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;
+ };
+
+ const shimConstraints_ = function(constraints, func) {
+ if (browserDetails.version >= 61) {
+ return func(constraints);
+ }
+ constraints = JSON.parse(JSON.stringify(constraints));
+ if (constraints && typeof constraints.audio === 'object') {
+ const remap = function(obj, a, b) {
+ if (a in obj && !(b in obj)) {
+ obj[b] = obj[a];
+ delete obj[a];
+ }
+ };
+ constraints = JSON.parse(JSON.stringify(constraints));
+ remap(constraints.audio, 'autoGainControl', 'googAutoGainControl');
+ remap(constraints.audio, 'noiseSuppression', 'googNoiseSuppression');
+ constraints.audio = constraintsToChrome_(constraints.audio);
+ }
+ if (constraints && typeof constraints.video === 'object') {
+ // Shim facingMode for mobile & surface pro.
+ let face = constraints.video.facingMode;
+ face = face && ((typeof face === 'object') ? face : {ideal: face});
+ const getSupportedFacingModeLies = browserDetails.version < 66;
+
+ if ((face && (face.exact === 'user' || face.exact === 'environment' ||
+ face.ideal === 'user' || face.ideal === 'environment')) &&
+ !(navigator.mediaDevices.getSupportedConstraints &&
+ navigator.mediaDevices.getSupportedConstraints().facingMode &&
+ !getSupportedFacingModeLies)) {
+ delete constraints.video.facingMode;
+ let matches;
+ if (face.exact === 'environment' || face.ideal === 'environment') {
+ matches = ['back', 'rear'];
+ } else if (face.exact === 'user' || face.ideal === 'user') {
+ matches = ['front'];
+ }
+ if (matches) {
+ // Look for matches in label, or use last cam for back (typical).
+ return navigator.mediaDevices.enumerateDevices()
+ .then(devices => {
+ devices = devices.filter(d => d.kind === 'videoinput');
+ let dev = devices.find(d => matches.some(match =>
+ d.label.toLowerCase().includes(match)));
+ if (!dev && devices.length && matches.includes('back')) {
+ dev = devices[devices.length - 1]; // more likely the back cam
+ }
+ if (dev) {
+ constraints.video.deviceId = face.exact ? {exact: dev.deviceId} :
+ {ideal: dev.deviceId};
+ }
+ constraints.video = constraintsToChrome_(constraints.video);
+ logging('chrome: ' + JSON.stringify(constraints));
+ return func(constraints);
+ });
+ }
+ }
+ constraints.video = constraintsToChrome_(constraints.video);
+ }
+ logging('chrome: ' + JSON.stringify(constraints));
+ return func(constraints);
+ };
+
+ const shimError_ = function(e) {
+ if (browserDetails.version >= 64) {
+ return e;
+ }
+ return {
+ name: {
+ PermissionDeniedError: 'NotAllowedError',
+ PermissionDismissedError: 'NotAllowedError',
+ InvalidStateError: 'NotAllowedError',
+ DevicesNotFoundError: 'NotFoundError',
+ ConstraintNotSatisfiedError: 'OverconstrainedError',
+ TrackStartError: 'NotReadableError',
+ MediaDeviceFailedDueToShutdown: 'NotAllowedError',
+ MediaDeviceKillSwitchOn: 'NotAllowedError',
+ TabCaptureError: 'AbortError',
+ ScreenCaptureError: 'AbortError',
+ DeviceCaptureError: 'AbortError'
+ }[e.name] || e.name,
+ message: e.message,
+ constraint: e.constraint || e.constraintName,
+ toString() {
+ return this.name + (this.message && ': ') + this.message;
+ }
+ };
+ };
+
+ const getUserMedia_ = function(constraints, onSuccess, onError) {
+ shimConstraints_(constraints, c => {
+ navigator.webkitGetUserMedia(c, onSuccess, e => {
+ if (onError) {
+ onError(shimError_(e));
+ }
+ });
+ });
+ };
+ navigator.getUserMedia = getUserMedia_.bind(navigator);
+
+ // Even though Chrome 45 has navigator.mediaDevices and a getUserMedia
+ // function which returns a Promise, it does not accept spec-style
+ // constraints.
+ if (navigator.mediaDevices.getUserMedia) {
+ const origGetUserMedia = navigator.mediaDevices.getUserMedia.
+ bind(navigator.mediaDevices);
+ navigator.mediaDevices.getUserMedia = function(cs) {
+ return shimConstraints_(cs, c => origGetUserMedia(c).then(stream => {
+ if (c.audio && !stream.getAudioTracks().length ||
+ c.video && !stream.getVideoTracks().length) {
+ stream.getTracks().forEach(track => {
+ track.stop();
+ });
+ throw new DOMException('', 'NotFoundError');
+ }
+ return stream;
+ }, e => Promise.reject(shimError_(e))));
+ };
+ }
+ }
+
+ /*
+ * Copyright (c) 2018 The adapter.js 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.
+ */
+ function shimGetDisplayMedia$2(window, getSourceId) {
+ if (window.navigator.mediaDevices &&
+ 'getDisplayMedia' in window.navigator.mediaDevices) {
+ return;
+ }
+ if (!(window.navigator.mediaDevices)) {
+ return;
+ }
+ // getSourceId is a function that returns a promise resolving with
+ // the sourceId of the screen/window/tab to be shared.
+ if (typeof getSourceId !== 'function') {
+ console.error('shimGetDisplayMedia: getSourceId argument is not ' +
+ 'a function');
+ return;
+ }
+ window.navigator.mediaDevices.getDisplayMedia =
+ function getDisplayMedia(constraints) {
+ return getSourceId(constraints)
+ .then(sourceId => {
+ const widthSpecified = constraints.video && constraints.video.width;
+ const heightSpecified = constraints.video &&
+ constraints.video.height;
+ const frameRateSpecified = constraints.video &&
+ constraints.video.frameRate;
+ constraints.video = {
+ mandatory: {
+ chromeMediaSource: 'desktop',
+ chromeMediaSourceId: sourceId,
+ maxFrameRate: frameRateSpecified || 3
+ }
+ };
+ if (widthSpecified) {
+ constraints.video.mandatory.maxWidth = widthSpecified;
+ }
+ if (heightSpecified) {
+ constraints.video.mandatory.maxHeight = heightSpecified;
+ }
+ return window.navigator.mediaDevices.getUserMedia(constraints);
+ });
+ };
+ }
+
+ /*
+ * 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.
+ */
+
+ function shimMediaStream(window) {
+ window.MediaStream = window.MediaStream || window.webkitMediaStream;
+ }
+
+ function shimOnTrack$1(window) {
+ if (typeof window === 'object' && window.RTCPeerConnection && !('ontrack' in
+ window.RTCPeerConnection.prototype)) {
+ Object.defineProperty(window.RTCPeerConnection.prototype, 'ontrack', {
+ get() {
+ return this._ontrack;
+ },
+ set(f) {
+ if (this._ontrack) {
+ this.removeEventListener('track', this._ontrack);
+ }
+ this.addEventListener('track', this._ontrack = f);
+ },
+ enumerable: true,
+ configurable: true
+ });
+ const origSetRemoteDescription =
+ window.RTCPeerConnection.prototype.setRemoteDescription;
+ window.RTCPeerConnection.prototype.setRemoteDescription =
+ function setRemoteDescription() {
+ if (!this._ontrackpoly) {
+ this._ontrackpoly = (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', te => {
+ let receiver;
+ if (window.RTCPeerConnection.prototype.getReceivers) {
+ receiver = this.getReceivers()
+ .find(r => r.track && r.track.id === te.track.id);
+ } else {
+ receiver = {track: te.track};
+ }
+
+ const event = new Event('track');
+ event.track = te.track;
+ event.receiver = receiver;
+ event.transceiver = {receiver};
+ event.streams = [e.stream];
+ this.dispatchEvent(event);
+ });
+ e.stream.getTracks().forEach(track => {
+ let receiver;
+ if (window.RTCPeerConnection.prototype.getReceivers) {
+ receiver = this.getReceivers()
+ .find(r => r.track && r.track.id === track.id);
+ } else {
+ receiver = {track};
+ }
+ const event = new Event('track');
+ event.track = track;
+ event.receiver = receiver;
+ event.transceiver = {receiver};
+ event.streams = [e.stream];
+ this.dispatchEvent(event);
+ });
+ };
+ this.addEventListener('addstream', this._ontrackpoly);
+ }
+ return origSetRemoteDescription.apply(this, arguments);
+ };
+ } else {
+ // even if RTCRtpTransceiver is in window, it is only used and
+ // emitted in unified-plan. Unfortunately this means we need
+ // to unconditionally wrap the event.
+ wrapPeerConnectionEvent(window, 'track', e => {
+ if (!e.transceiver) {
+ Object.defineProperty(e, 'transceiver',
+ {value: {receiver: e.receiver}});
+ }
+ return e;
+ });
+ }
+ }
+
+ function shimGetSendersWithDtmf(window) {
+ // Overrides addTrack/removeTrack, depends on shimAddTrackRemoveTrack.
+ if (typeof window === 'object' && window.RTCPeerConnection &&
+ !('getSenders' in window.RTCPeerConnection.prototype) &&
+ 'createDTMFSender' in window.RTCPeerConnection.prototype) {
+ const shimSenderWithDtmf = function(pc, track) {
+ return {
+ track,
+ get dtmf() {
+ if (this._dtmf === undefined) {
+ if (track.kind === 'audio') {
+ this._dtmf = pc.createDTMFSender(track);
+ } else {
+ this._dtmf = null;
+ }
+ }
+ return this._dtmf;
+ },
+ _pc: pc
+ };
+ };
+
+ // augment addTrack when getSenders is not available.
+ if (!window.RTCPeerConnection.prototype.getSenders) {
+ window.RTCPeerConnection.prototype.getSenders = function getSenders() {
+ this._senders = this._senders || [];
+ return this._senders.slice(); // return a copy of the internal state.
+ };
+ const origAddTrack = window.RTCPeerConnection.prototype.addTrack;
+ window.RTCPeerConnection.prototype.addTrack =
+ function addTrack(track, stream) {
+ let sender = origAddTrack.apply(this, arguments);
+ if (!sender) {
+ sender = shimSenderWithDtmf(this, track);
+ this._senders.push(sender);
+ }
+ return sender;
+ };
+
+ const origRemoveTrack = window.RTCPeerConnection.prototype.removeTrack;
+ window.RTCPeerConnection.prototype.removeTrack =
+ function removeTrack(sender) {
+ origRemoveTrack.apply(this, arguments);
+ const idx = this._senders.indexOf(sender);
+ if (idx !== -1) {
+ this._senders.splice(idx, 1);
+ }
+ };
+ }
+ const origAddStream = window.RTCPeerConnection.prototype.addStream;
+ window.RTCPeerConnection.prototype.addStream = function addStream(stream) {
+ this._senders = this._senders || [];
+ origAddStream.apply(this, [stream]);
+ stream.getTracks().forEach(track => {
+ this._senders.push(shimSenderWithDtmf(this, track));
+ });
+ };
+
+ const origRemoveStream = window.RTCPeerConnection.prototype.removeStream;
+ window.RTCPeerConnection.prototype.removeStream =
+ function removeStream(stream) {
+ this._senders = this._senders || [];
+ origRemoveStream.apply(this, [stream]);
+
+ stream.getTracks().forEach(track => {
+ const sender = this._senders.find(s => s.track === track);
+ if (sender) { // remove sender
+ this._senders.splice(this._senders.indexOf(sender), 1);
+ }
+ });
+ };
+ } else if (typeof window === 'object' && window.RTCPeerConnection &&
+ 'getSenders' in window.RTCPeerConnection.prototype &&
+ 'createDTMFSender' in window.RTCPeerConnection.prototype &&
+ window.RTCRtpSender &&
+ !('dtmf' in window.RTCRtpSender.prototype)) {
+ const origGetSenders = window.RTCPeerConnection.prototype.getSenders;
+ window.RTCPeerConnection.prototype.getSenders = function getSenders() {
+ const senders = origGetSenders.apply(this, []);
+ senders.forEach(sender => sender._pc = this);
+ return senders;
+ };
+
+ Object.defineProperty(window.RTCRtpSender.prototype, 'dtmf', {
+ get() {
+ if (this._dtmf === undefined) {
+ if (this.track.kind === 'audio') {
+ this._dtmf = this._pc.createDTMFSender(this.track);
+ } else {
+ this._dtmf = null;
+ }
+ }
+ return this._dtmf;
+ }
+ });
+ }
+ }
+
+ function shimGetStats(window) {
+ if (!window.RTCPeerConnection) {
+ return;
+ }
+
+ const origGetStats = window.RTCPeerConnection.prototype.getStats;
+ window.RTCPeerConnection.prototype.getStats = function getStats() {
+ const [selector, onSucc, onErr] = 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 selector !== 'function')) {
+ return origGetStats.apply(this, []);
+ }
+
+ const fixChromeStats_ = function(response) {
+ const standardReport = {};
+ const reports = response.result();
+ reports.forEach(report => {
+ const standardStats = {
+ id: report.id,
+ timestamp: report.timestamp,
+ type: {
+ localcandidate: 'local-candidate',
+ remotecandidate: 'remote-candidate'
+ }[report.type] || report.type
+ };
+ report.names().forEach(name => {
+ standardStats[name] = report.stat(name);
+ });
+ standardReport[standardStats.id] = standardStats;
+ });
+
+ return standardReport;
+ };
+
+ // shim getStats with maplike support
+ const makeMapStats = function(stats) {
+ return new Map(Object.keys(stats).map(key => [key, stats[key]]));
+ };
+
+ if (arguments.length >= 2) {
+ const successCallbackWrapper_ = function(response) {
+ onSucc(makeMapStats(fixChromeStats_(response)));
+ };
+
+ return origGetStats.apply(this, [successCallbackWrapper_,
+ selector]);
+ }
+
+ // promise-support
+ return new Promise((resolve, reject) => {
+ origGetStats.apply(this, [
+ function(response) {
+ resolve(makeMapStats(fixChromeStats_(response)));
+ }, reject]);
+ }).then(onSucc, onErr);
+ };
+ }
+
+ function shimSenderReceiverGetStats(window) {
+ if (!(typeof window === 'object' && window.RTCPeerConnection &&
+ window.RTCRtpSender && window.RTCRtpReceiver)) {
+ return;
+ }
+
+ // shim sender stats.
+ if (!('getStats' in window.RTCRtpSender.prototype)) {
+ const origGetSenders = window.RTCPeerConnection.prototype.getSenders;
+ if (origGetSenders) {
+ window.RTCPeerConnection.prototype.getSenders = function getSenders() {
+ const senders = origGetSenders.apply(this, []);
+ senders.forEach(sender => sender._pc = this);
+ return senders;
+ };
+ }
+
+ const origAddTrack = window.RTCPeerConnection.prototype.addTrack;
+ if (origAddTrack) {
+ window.RTCPeerConnection.prototype.addTrack = function addTrack() {
+ const sender = origAddTrack.apply(this, arguments);
+ sender._pc = this;
+ return sender;
+ };
+ }
+ window.RTCRtpSender.prototype.getStats = function getStats() {
+ const sender = this;
+ return this._pc.getStats().then(result =>
+ /* Note: this will include stats of all senders that
+ * send a track with the same id as sender.track as
+ * it is not possible to identify the RTCRtpSender.
+ */
+ filterStats(result, sender.track, true));
+ };
+ }
+
+ // shim receiver stats.
+ if (!('getStats' in window.RTCRtpReceiver.prototype)) {
+ const origGetReceivers = window.RTCPeerConnection.prototype.getReceivers;
+ if (origGetReceivers) {
+ window.RTCPeerConnection.prototype.getReceivers =
+ function getReceivers() {
+ const receivers = origGetReceivers.apply(this, []);
+ receivers.forEach(receiver => receiver._pc = this);
+ return receivers;
+ };
+ }
+ wrapPeerConnectionEvent(window, 'track', e => {
+ e.receiver._pc = e.srcElement;
+ return e;
+ });
+ window.RTCRtpReceiver.prototype.getStats = function getStats() {
+ const receiver = this;
+ return this._pc.getStats().then(result =>
+ filterStats(result, receiver.track, false));
+ };
+ }
+
+ if (!('getStats' in window.RTCRtpSender.prototype &&
+ 'getStats' in window.RTCRtpReceiver.prototype)) {
+ return;
+ }
+
+ // shim RTCPeerConnection.getStats(track).
+ const origGetStats = window.RTCPeerConnection.prototype.getStats;
+ window.RTCPeerConnection.prototype.getStats = function getStats() {
+ if (arguments.length > 0 &&
+ arguments[0] instanceof window.MediaStreamTrack) {
+ const track = arguments[0];
+ let sender;
+ let receiver;
+ let err;
+ this.getSenders().forEach(s => {
+ if (s.track === track) {
+ if (sender) {
+ err = true;
+ } else {
+ sender = s;
+ }
+ }
+ });
+ this.getReceivers().forEach(r => {
+ if (r.track === track) {
+ if (receiver) {
+ err = true;
+ } else {
+ receiver = r;
+ }
+ }
+ return r.track === track;
+ });
+ if (err || (sender && receiver)) {
+ return Promise.reject(new DOMException(
+ 'There are more than one sender or receiver for the track.',
+ 'InvalidAccessError'));
+ } else if (sender) {
+ return sender.getStats();
+ } else if (receiver) {
+ return receiver.getStats();
+ }
+ return Promise.reject(new DOMException(
+ 'There is no sender or receiver for the track.',
+ 'InvalidAccessError'));
+ }
+ return origGetStats.apply(this, arguments);
+ };
+ }
+
+ function shimAddTrackRemoveTrackWithNative(window) {
+ // shim addTrack/removeTrack with native variants in order to make
+ // the interactions with legacy getLocalStreams behave as in other browsers.
+ // Keeps a mapping stream.id => [stream, rtpsenders...]
+ window.RTCPeerConnection.prototype.getLocalStreams =
+ function getLocalStreams() {
+ this._shimmedLocalStreams = this._shimmedLocalStreams || {};
+ return Object.keys(this._shimmedLocalStreams)
+ .map(streamId => this._shimmedLocalStreams[streamId][0]);
+ };
+
+ const origAddTrack = window.RTCPeerConnection.prototype.addTrack;
+ window.RTCPeerConnection.prototype.addTrack =
+ function addTrack(track, stream) {
+ if (!stream) {
+ return origAddTrack.apply(this, arguments);
+ }
+ this._shimmedLocalStreams = this._shimmedLocalStreams || {};
+
+ const sender = origAddTrack.apply(this, arguments);
+ if (!this._shimmedLocalStreams[stream.id]) {
+ this._shimmedLocalStreams[stream.id] = [stream, sender];
+ } else if (this._shimmedLocalStreams[stream.id].indexOf(sender) === -1) {
+ this._shimmedLocalStreams[stream.id].push(sender);
+ }
+ return sender;
+ };
+
+ const origAddStream = window.RTCPeerConnection.prototype.addStream;
+ window.RTCPeerConnection.prototype.addStream = function addStream(stream) {
+ this._shimmedLocalStreams = this._shimmedLocalStreams || {};
+
+ stream.getTracks().forEach(track => {
+ const alreadyExists = this.getSenders().find(s => s.track === track);
+ if (alreadyExists) {
+ throw new DOMException('Track already exists.',
+ 'InvalidAccessError');
+ }
+ });
+ const existingSenders = this.getSenders();
+ origAddStream.apply(this, arguments);
+ const newSenders = this.getSenders()
+ .filter(newSender => existingSenders.indexOf(newSender) === -1);
+ this._shimmedLocalStreams[stream.id] = [stream].concat(newSenders);
+ };
+
+ const origRemoveStream = window.RTCPeerConnection.prototype.removeStream;
+ window.RTCPeerConnection.prototype.removeStream =
+ function removeStream(stream) {
+ this._shimmedLocalStreams = this._shimmedLocalStreams || {};
+ delete this._shimmedLocalStreams[stream.id];
+ return origRemoveStream.apply(this, arguments);
+ };
+
+ const origRemoveTrack = window.RTCPeerConnection.prototype.removeTrack;
+ window.RTCPeerConnection.prototype.removeTrack =
+ function removeTrack(sender) {
+ this._shimmedLocalStreams = this._shimmedLocalStreams || {};
+ if (sender) {
+ Object.keys(this._shimmedLocalStreams).forEach(streamId => {
+ const idx = this._shimmedLocalStreams[streamId].indexOf(sender);
+ if (idx !== -1) {
+ this._shimmedLocalStreams[streamId].splice(idx, 1);
+ }
+ if (this._shimmedLocalStreams[streamId].length === 1) {
+ delete this._shimmedLocalStreams[streamId];
+ }
+ });
+ }
+ return origRemoveTrack.apply(this, arguments);
+ };
+ }
+
+ function shimAddTrackRemoveTrack(window, browserDetails) {
+ if (!window.RTCPeerConnection) {
+ return;
+ }
+ // shim addTrack and removeTrack.
+ if (window.RTCPeerConnection.prototype.addTrack &&
+ browserDetails.version >= 65) {
+ return shimAddTrackRemoveTrackWithNative(window);
+ }
+
+ // also shim pc.getLocalStreams when addTrack is shimmed
+ // to return the original streams.
+ const origGetLocalStreams = window.RTCPeerConnection.prototype
+ .getLocalStreams;
+ window.RTCPeerConnection.prototype.getLocalStreams =
+ function getLocalStreams() {
+ const nativeStreams = origGetLocalStreams.apply(this);
+ this._reverseStreams = this._reverseStreams || {};
+ return nativeStreams.map(stream => this._reverseStreams[stream.id]);
+ };
+
+ const origAddStream = window.RTCPeerConnection.prototype.addStream;
+ window.RTCPeerConnection.prototype.addStream = function addStream(stream) {
+ this._streams = this._streams || {};
+ this._reverseStreams = this._reverseStreams || {};
+
+ stream.getTracks().forEach(track => {
+ const alreadyExists = this.getSenders().find(s => s.track === track);
+ if (alreadyExists) {
+ throw new DOMException('Track already exists.',
+ 'InvalidAccessError');
+ }
+ });
+ // Add identity mapping for consistency with addTrack.
+ // Unless this is being used with a stream from addTrack.
+ if (!this._reverseStreams[stream.id]) {
+ const newStream = new window.MediaStream(stream.getTracks());
+ this._streams[stream.id] = newStream;
+ this._reverseStreams[newStream.id] = stream;
+ stream = newStream;
+ }
+ origAddStream.apply(this, [stream]);
+ };
+
+ const origRemoveStream = window.RTCPeerConnection.prototype.removeStream;
+ window.RTCPeerConnection.prototype.removeStream =
+ function removeStream(stream) {
+ this._streams = this._streams || {};
+ this._reverseStreams = this._reverseStreams || {};
+
+ origRemoveStream.apply(this, [(this._streams[stream.id] || stream)]);
+ delete this._reverseStreams[(this._streams[stream.id] ?
+ this._streams[stream.id].id : stream.id)];
+ delete this._streams[stream.id];
+ };
+
+ window.RTCPeerConnection.prototype.addTrack =
+ function addTrack(track, stream) {
+ if (this.signalingState === 'closed') {
+ throw new DOMException(
+ 'The RTCPeerConnection\'s signalingState is \'closed\'.',
+ 'InvalidStateError');
+ }
+ const streams = [].slice.call(arguments, 1);
+ if (streams.length !== 1 ||
+ !streams[0].getTracks().find(t => t === track)) {
+ // this is not fully correct but all we can manage without
+ // [[associated MediaStreams]] internal slot.
+ throw new DOMException(
+ 'The adapter.js addTrack polyfill only supports a single ' +
+ ' stream which is associated with the specified track.',
+ 'NotSupportedError');
+ }
+
+ const alreadyExists = this.getSenders().find(s => s.track === track);
+ if (alreadyExists) {
+ throw new DOMException('Track already exists.',
+ 'InvalidAccessError');
+ }
+
+ this._streams = this._streams || {};
+ this._reverseStreams = this._reverseStreams || {};
+ const oldStream = this._streams[stream.id];
+ if (oldStream) {
+ // this is using odd Chrome behaviour, use with caution:
+ // https://bugs.chromium.org/p/webrtc/issues/detail?id=7815
+ // Note: we rely on the high-level addTrack/dtmf shim to
+ // create the sender with a dtmf sender.
+ oldStream.addTrack(track);
+
+ // Trigger ONN async.
+ Promise.resolve().then(() => {
+ this.dispatchEvent(new Event('negotiationneeded'));
+ });
+ } else {
+ const newStream = new window.MediaStream([track]);
+ this._streams[stream.id] = newStream;
+ this._reverseStreams[newStream.id] = stream;
+ this.addStream(newStream);
+ }
+ return this.getSenders().find(s => s.track === track);
+ };
+
+ // replace the internal stream id with the external one and
+ // vice versa.
+ function replaceInternalStreamId(pc, description) {
+ let sdp = description.sdp;
+ Object.keys(pc._reverseStreams || []).forEach(internalId => {
+ const externalStream = pc._reverseStreams[internalId];
+ const internalStream = pc._streams[externalStream.id];
+ sdp = sdp.replace(new RegExp(internalStream.id, 'g'),
+ externalStream.id);
+ });
+ return new RTCSessionDescription({
+ type: description.type,
+ sdp
+ });
+ }
+ function replaceExternalStreamId(pc, description) {
+ let sdp = description.sdp;
+ Object.keys(pc._reverseStreams || []).forEach(internalId => {
+ const externalStream = pc._reverseStreams[internalId];
+ const internalStream = pc._streams[externalStream.id];
+ sdp = sdp.replace(new RegExp(externalStream.id, 'g'),
+ internalStream.id);
+ });
+ return new RTCSessionDescription({
+ type: description.type,
+ sdp
+ });
+ }
+ ['createOffer', 'createAnswer'].forEach(function(method) {
+ const nativeMethod = window.RTCPeerConnection.prototype[method];
+ const methodObj = {[method]() {
+ const args = arguments;
+ const isLegacyCall = arguments.length &&
+ typeof arguments[0] === 'function';
+ if (isLegacyCall) {
+ return nativeMethod.apply(this, [
+ (description) => {
+ const desc = replaceInternalStreamId(this, description);
+ args[0].apply(null, [desc]);
+ },
+ (err) => {
+ if (args[1]) {
+ args[1].apply(null, err);
+ }
+ }, arguments[2]
+ ]);
+ }
+ return nativeMethod.apply(this, arguments)
+ .then(description => replaceInternalStreamId(this, description));
+ }};
+ window.RTCPeerConnection.prototype[method] = methodObj[method];
+ });
+
+ const origSetLocalDescription =
+ window.RTCPeerConnection.prototype.setLocalDescription;
+ window.RTCPeerConnection.prototype.setLocalDescription =
+ function setLocalDescription() {
+ if (!arguments.length || !arguments[0].type) {
+ return origSetLocalDescription.apply(this, arguments);
+ }
+ arguments[0] = replaceExternalStreamId(this, arguments[0]);
+ return origSetLocalDescription.apply(this, arguments);
+ };
+
+ // TODO: mangle getStats: https://w3c.github.io/webrtc-stats/#dom-rtcmediastreamstats-streamidentifier
+
+ const origLocalDescription = Object.getOwnPropertyDescriptor(
+ window.RTCPeerConnection.prototype, 'localDescription');
+ Object.defineProperty(window.RTCPeerConnection.prototype,
+ 'localDescription', {
+ get() {
+ const description = origLocalDescription.get.apply(this);
+ if (description.type === '') {
+ return description;
+ }
+ return replaceInternalStreamId(this, description);
+ }
+ });
+
+ window.RTCPeerConnection.prototype.removeTrack =
+ function removeTrack(sender) {
+ if (this.signalingState === 'closed') {
+ throw new DOMException(
+ 'The RTCPeerConnection\'s signalingState is \'closed\'.',
+ 'InvalidStateError');
+ }
+ // We can not yet check for sender instanceof RTCRtpSender
+ // since we shim RTPSender. So we check if sender._pc is set.
+ if (!sender._pc) {
+ throw new DOMException('Argument 1 of RTCPeerConnection.removeTrack ' +
+ 'does not implement interface RTCRtpSender.', 'TypeError');
+ }
+ const isLocal = sender._pc === this;
+ if (!isLocal) {
+ throw new DOMException('Sender was not created by this connection.',
+ 'InvalidAccessError');
+ }
+
+ // Search for the native stream the senders track belongs to.
+ this._streams = this._streams || {};
+ let stream;
+ Object.keys(this._streams).forEach(streamid => {
+ const hasTrack = this._streams[streamid].getTracks()
+ .find(track => sender.track === track);
+ if (hasTrack) {
+ stream = this._streams[streamid];
+ }
+ });
+
+ if (stream) {
+ if (stream.getTracks().length === 1) {
+ // if this is the last track of the stream, remove the stream. This
+ // takes care of any shimmed _senders.
+ this.removeStream(this._reverseStreams[stream.id]);
+ } else {
+ // relying on the same odd chrome behaviour as above.
+ stream.removeTrack(sender.track);
+ }
+ this.dispatchEvent(new Event('negotiationneeded'));
+ }
+ };
+ }
+
+ function shimPeerConnection$2(window, browserDetails) {
+ if (!window.RTCPeerConnection && window.webkitRTCPeerConnection) {
+ // very basic support for old versions.
+ window.RTCPeerConnection = window.webkitRTCPeerConnection;
+ }
+ if (!window.RTCPeerConnection) {
+ return;
+ }
+
+ // shim implicit creation of RTCSessionDescription/RTCIceCandidate
+ if (browserDetails.version < 53) {
+ ['setLocalDescription', 'setRemoteDescription', 'addIceCandidate']
+ .forEach(function(method) {
+ const nativeMethod = window.RTCPeerConnection.prototype[method];
+ const methodObj = {[method]() {
+ arguments[0] = new ((method === 'addIceCandidate') ?
+ window.RTCIceCandidate :
+ window.RTCSessionDescription)(arguments[0]);
+ return nativeMethod.apply(this, arguments);
+ }};
+ window.RTCPeerConnection.prototype[method] = methodObj[method];
+ });
+ }
+ }
+
+ // Attempt to fix ONN in plan-b mode.
+ function fixNegotiationNeeded(window, browserDetails) {
+ wrapPeerConnectionEvent(window, 'negotiationneeded', e => {
+ const pc = e.target;
+ if (browserDetails.version < 72 || (pc.getConfiguration &&
+ pc.getConfiguration().sdpSemantics === 'plan-b')) {
+ if (pc.signalingState !== 'stable') {
+ return;
+ }
+ }
+ return e;
+ });
+ }
+
+ var chromeShim = /*#__PURE__*/Object.freeze({
+ __proto__: null,
+ shimMediaStream: shimMediaStream,
+ shimOnTrack: shimOnTrack$1,
+ shimGetSendersWithDtmf: shimGetSendersWithDtmf,
+ shimGetStats: shimGetStats,
+ shimSenderReceiverGetStats: shimSenderReceiverGetStats,
+ shimAddTrackRemoveTrackWithNative: shimAddTrackRemoveTrackWithNative,
+ shimAddTrackRemoveTrack: shimAddTrackRemoveTrack,
+ shimPeerConnection: shimPeerConnection$2,
+ fixNegotiationNeeded: fixNegotiationNeeded,
+ shimGetUserMedia: shimGetUserMedia$3,
+ shimGetDisplayMedia: shimGetDisplayMedia$2
+ });
+
+ /*
+ * Copyright (c) 2018 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.
+ */
+ // Edge does not like
+ // 1) stun: filtered after 14393 unless ?transport=udp is present
+ // 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$1(iceServers, edgeVersion) {
+ let hasTurn = false;
+ iceServers = JSON.parse(JSON.stringify(iceServers));
+ return iceServers.filter(server => {
+ if (server && (server.urls || server.url)) {
+ let urls = server.urls || server.url;
+ if (server.url && !server.urls) {
+ deprecated('RTCIceServer.url', 'RTCIceServer.urls');
+ }
+ const isString = typeof urls === 'string';
+ if (isString) {
+ urls = [urls];
+ }
+ urls = urls.filter(url => {
+ // filter STUN unconditionally.
+ if (url.indexOf('stun:') === 0) {
+ return false;
+ }
+
+ const validTurn = url.startsWith('turn') &&
+ !url.startsWith('turn:[') &&
+ url.includes('transport=udp');
+ if (validTurn && !hasTurn) {
+ hasTurn = true;
+ return true;
+ }
+ return validTurn && !hasTurn;
+ });
+
+ delete server.url;
+ server.urls = isString ? urls[0] : urls;
+ return !!urls.length;
+ }
+ });
+ }
+
+ function createCommonjsModule(fn) {
+ var module = { exports: {} };
+ return fn(module, module.exports), module.exports;
+ }
+
+ /* eslint-env node */
+
+ var sdp = createCommonjsModule(function (module) {
+
+ // 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 the session description.
+ SDPUtils.getDescription = function(blob) {
+ var sections = SDPUtils.splitSections(blob);
+ return sections && sections[0];
+ };
+
+ // returns the individual media sections.
+ SDPUtils.getMediaSections = function(blob) {
+ var sections = SDPUtils.splitSections(blob);
+ sections.shift();
+ return sections;
+ };
+
+ // Returns lines that start with a certain prefix.
+ SDPUtils.matchPrefix = function(blob, prefix) {
+ return SDPUtils.splitLines(blob).filter(function(line) {
+ return line.indexOf(prefix) === 0;
+ });
+ };
+
+ // Parses an ICE candidate line. Sample input:
+ // candidate:702786350 2 udp 41819902 8.8.8.8 60769 typ relay raddr 8.8.8.8
+ // rport 55996"
+ SDPUtils.parseCandidate = function(line) {
+ var parts;
+ // Parse both variants.
+ if (line.indexOf('a=candidate:') === 0) {
+ parts = line.substring(12).split(' ');
+ } else {
+ parts = line.substring(10).split(' ');
+ }
+
+ var candidate = {
+ foundation: parts[0],
+ component: parseInt(parts[1], 10),
+ protocol: parts[2].toLowerCase(),
+ priority: parseInt(parts[3], 10),
+ ip: parts[4],
+ address: parts[4], // address is an alias for ip.
+ port: parseInt(parts[5], 10),
+ // skip parts[6] == 'typ'
+ type: parts[7]
+ };
+
+ for (var i = 8; i < parts.length; i += 2) {
+ switch (parts[i]) {
+ case 'raddr':
+ candidate.relatedAddress = parts[i + 1];
+ break;
+ case 'rport':
+ candidate.relatedPort = parseInt(parts[i + 1], 10);
+ break;
+ case 'tcptype':
+ candidate.tcpType = parts[i + 1];
+ break;
+ case 'ufrag':
+ candidate.ufrag = parts[i + 1]; // for backward compability.
+ candidate.usernameFragment = parts[i + 1];
+ break;
+ default: // extension handling, in particular ufrag
+ candidate[parts[i]] = parts[i + 1];
+ break;
+ }
+ }
+ return candidate;
+ };
+
+ // Translates a candidate object into SDP candidate attribute.
+ SDPUtils.writeCandidate = function(candidate) {
+ var sdp = [];
+ sdp.push(candidate.foundation);
+ sdp.push(candidate.component);
+ sdp.push(candidate.protocol.toUpperCase());
+ sdp.push(candidate.priority);
+ sdp.push(candidate.address || 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);
+ sdp.push('rport');
+ sdp.push(candidate.relatedPort);
+ }
+ if (candidate.tcpType && candidate.protocol.toLowerCase() === 'tcp') {
+ sdp.push('tcptype');
+ sdp.push(candidate.tcpType);
+ }
+ if (candidate.usernameFragment || candidate.ufrag) {
+ sdp.push('ufrag');
+ sdp.push(candidate.usernameFragment || candidate.ufrag);
+ }
+ return 'candidate:' + sdp.join(' ');
+ };
+
+ // Parses an ice-options line, returns an array of option tags.
+ // a=ice-options:foo bar
+ SDPUtils.parseIceOptions = function(line) {
+ return line.substr(14).split(' ');
+ };
+
+ // Parses an rtpmap line, returns RTCRtpCoddecParameters. Sample input:
+ // a=rtpmap:111 opus/48000/2
+ SDPUtils.parseRtpMap = function(line) {
+ var parts = line.substr(9).split(' ');
+ var parsed = {
+ payloadType: parseInt(parts.shift(), 10) // was: id
+ };
+
+ parts = parts[0].split('/');
+
+ parsed.name = parts[0];
+ parsed.clockRate = parseInt(parts[1], 10); // was: clockrate
+ parsed.channels = parts.length === 3 ? parseInt(parts[2], 10) : 1;
+ // legacy alias, got renamed back to channels in ORTC.
+ parsed.numChannels = parsed.channels;
+ 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;
+ }
+ var channels = codec.channels || codec.numChannels || 1;
+ return 'a=rtpmap:' + pt + ' ' + codec.name + '/' + codec.clockRate +
+ (channels !== 1 ? '/' + channels : '') + '\r\n';
+ };
+
+ // Parses an a=extmap line (headerextension from RFC 5285). Sample input:
+ // a=extmap:2 urn:ietf:params:rtp-hdrext:toffset
+ // a=extmap:2/sendonly urn:ietf:params:rtp-hdrext:toffset
+ SDPUtils.parseExtmap = function(line) {
+ var parts = line.substr(9).split(' ');
+ return {
+ id: parseInt(parts[0], 10),
+ direction: parts[0].indexOf('/') > 0 ? parts[0].split('/')[1] : 'sendrecv',
+ uri: parts[1]
+ };
+ };
+
+ // Generates a=extmap line from RTCRtpHeaderExtensionParameters or
+ // RTCRtpHeaderExtension.
+ SDPUtils.writeExtmap = function(headerExtension) {
+ return 'a=extmap:' + (headerExtension.id || headerExtension.preferredId) +
+ (headerExtension.direction && headerExtension.direction !== 'sendrecv'
+ ? '/' + headerExtension.direction
+ : '') +
+ ' ' + headerExtension.uri + '\r\n';
+ };
+
+ // Parses an ftmp line, returns dictionary. Sample input:
+ // a=fmtp:96 vbr=on;cng=on
+ // Also deals with vbr=on; cng=on
+ SDPUtils.parseFmtp = function(line) {
+ var parsed = {};
+ var kv;
+ var parts = line.substr(line.indexOf(' ') + 1).split(';');
+ for (var j = 0; j < parts.length; j++) {
+ kv = parts[j].trim().split('=');
+ parsed[kv[0].trim()] = kv[1];
+ }
+ return parsed;
+ };
+
+ // Generates an a=ftmp line from RTCRtpCodecCapability or RTCRtpCodecParameters.
+ SDPUtils.writeFmtp = function(codec) {
+ var line = '';
+ var pt = codec.payloadType;
+ if (codec.preferredPayloadType !== undefined) {
+ pt = codec.preferredPayloadType;
+ }
+ if (codec.parameters && Object.keys(codec.parameters).length) {
+ var params = [];
+ Object.keys(codec.parameters).forEach(function(param) {
+ if (codec.parameters[param]) {
+ params.push(param + '=' + codec.parameters[param]);
+ } else {
+ params.push(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;
+ };
+
+ SDPUtils.parseSsrcGroup = function(line) {
+ var parts = line.substr(13).split(' ');
+ return {
+ semantics: parts.shift(),
+ ssrcs: parts.map(function(ssrc) {
+ return parseInt(ssrc, 10);
+ })
+ };
+ };
+
+ // Extracts the MID (RFC 5888) from a media section.
+ // returns the MID or undefined if no mid line was found.
+ SDPUtils.getMid = function(mediaSection) {
+ var mid = SDPUtils.matchPrefix(mediaSection, 'a=mid:')[0];
+ if (mid) {
+ return mid.substr(6);
+ }
+ };
+
+ SDPUtils.parseFingerprint = function(line) {
+ var parts = line.substr(14).split(' ');
+ return {
+ algorithm: parts[0].toLowerCase(), // algorithm is case-sensitive in Edge.
+ value: parts[1]
+ };
+ };
+
+ // Extracts DTLS parameters from SDP media section or sessionpart.
+ // FIXME: for consistency with other functions this should only
+ // get the fingerprint line as input. See also getIceParameters.
+ SDPUtils.getDtlsParameters = function(mediaSection, sessionpart) {
+ var lines = SDPUtils.matchPrefix(mediaSection + sessionpart,
+ 'a=fingerprint:');
+ // Note: a=setup line is ignored since we use the 'auto' role.
+ // Note2: 'algorithm' is not case sensitive except in Edge.
+ return {
+ role: 'auto',
+ fingerprints: lines.map(SDPUtils.parseFingerprint)
+ };
+ };
+
+ // Serializes DTLS parameters to SDP.
+ SDPUtils.writeDtlsParameters = function(params, setupType) {
+ var sdp = 'a=setup:' + setupType + '\r\n';
+ params.fingerprints.forEach(function(fp) {
+ sdp += 'a=fingerprint:' + fp.algorithm + ' ' + fp.value + '\r\n';
+ });
+ return sdp;
+ };
+
+ // Parses a=crypto lines into
+ // https://rawgit.com/aboba/edgertc/master/msortc-rs4.html#dictionary-rtcsrtpsdesparameters-members
+ SDPUtils.parseCryptoLine = function(line) {
+ var parts = line.substr(9).split(' ');
+ return {
+ tag: parseInt(parts[0], 10),
+ cryptoSuite: parts[1],
+ keyParams: parts[2],
+ sessionParams: parts.slice(3),
+ };
+ };
+
+ SDPUtils.writeCryptoLine = function(parameters) {
+ return 'a=crypto:' + parameters.tag + ' ' +
+ parameters.cryptoSuite + ' ' +
+ (typeof parameters.keyParams === 'object'
+ ? SDPUtils.writeCryptoKeyParams(parameters.keyParams)
+ : parameters.keyParams) +
+ (parameters.sessionParams ? ' ' + parameters.sessionParams.join(' ') : '') +
+ '\r\n';
+ };
+
+ // Parses the crypto key parameters into
+ // https://rawgit.com/aboba/edgertc/master/msortc-rs4.html#rtcsrtpkeyparam*
+ SDPUtils.parseCryptoKeyParams = function(keyParams) {
+ if (keyParams.indexOf('inline:') !== 0) {
+ return null;
+ }
+ var parts = keyParams.substr(7).split('|');
+ return {
+ keyMethod: 'inline',
+ keySalt: parts[0],
+ lifeTime: parts[1],
+ mkiValue: parts[2] ? parts[2].split(':')[0] : undefined,
+ mkiLength: parts[2] ? parts[2].split(':')[1] : undefined,
+ };
+ };
+
+ SDPUtils.writeCryptoKeyParams = function(keyParams) {
+ return keyParams.keyMethod + ':'
+ + keyParams.keySalt +
+ (keyParams.lifeTime ? '|' + keyParams.lifeTime : '') +
+ (keyParams.mkiValue && keyParams.mkiLength
+ ? '|' + keyParams.mkiValue + ':' + keyParams.mkiLength
+ : '');
+ };
+
+ // Extracts all SDES paramters.
+ SDPUtils.getCryptoParameters = function(mediaSection, sessionpart) {
+ var lines = SDPUtils.matchPrefix(mediaSection + sessionpart,
+ 'a=crypto:');
+ return lines.map(SDPUtils.parseCryptoLine);
+ };
+
+ // 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 ufrag = SDPUtils.matchPrefix(mediaSection + sessionpart,
+ 'a=ice-ufrag:')[0];
+ var pwd = SDPUtils.matchPrefix(mediaSection + sessionpart,
+ 'a=ice-pwd:')[0];
+ if (!(ufrag && pwd)) {
+ return null;
+ }
+ return {
+ usernameFragment: ufrag.substr(12),
+ password: pwd.substr(10),
+ };
+ };
+
+ // 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;
+ }
+ }
+ }
+ 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';
+
+ if (caps.headerExtensions) {
+ 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.substr(17).split(' ');
+ 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)
+ };
+ if (primarySsrc && secondarySsrc) {
+ encParam.rtx = {ssrc: secondarySsrc};
+ }
+ encodingParameters.push(encParam);
+ if (hasRed) {
+ encParam = JSON.parse(JSON.stringify(encParam));
+ encParam.fec = {
+ ssrc: primarySsrc,
+ mechanism: hasUlpfec ? 'red+ulpfec' : 'red'
+ };
+ encodingParameters.push(encParam);
+ }
+ }
+ });
+ if (encodingParameters.length === 0 && primarySsrc) {
+ encodingParameters.push({
+ ssrc: primarySsrc
+ });
+ }
+
+ // we support both b=AS and b=TIAS but interpret AS as TIAS.
+ var bandwidth = SDPUtils.matchPrefix(mediaSection, 'b=');
+ if (bandwidth.length) {
+ if (bandwidth[0].indexOf('b=TIAS:') === 0) {
+ bandwidth = parseInt(bandwidth[0].substr(7), 10);
+ } else if (bandwidth[0].indexOf('b=AS:') === 0) {
+ // use formula from JSEP to convert b=AS to TIAS value.
+ bandwidth = parseInt(bandwidth[0].substr(5), 10) * 1000 * 0.95
+ - (50 * 40 * 8);
+ } else {
+ bandwidth = undefined;
+ }
+ encodingParameters.forEach(function(params) {
+ params.maxBitrate = bandwidth;
+ });
+ }
+ return encodingParameters;
+ };
+
+ // parses http://draft.ortc.org/#rtcrtcpparameters*
+ SDPUtils.parseRtcpParameters = function(mediaSection) {
+ var rtcpParameters = {};
+
+ // Gets the first SSRC. Note tha 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 attr褨bute.
+ // Note that Edge does not support unmuxed RTCP.
+ var mux = SDPUtils.matchPrefix(mediaSection, 'a=rtcp-mux');
+ rtcpParameters.mux = mux.length > 0;
+
+ return rtcpParameters;
+ };
+
+ // parses either a=msid: or a=ssrc:... msid lines and returns
+ // the id of the MediaStream and MediaStreamTrack.
+ SDPUtils.parseMsid = function(mediaSection) {
+ var parts;
+ var spec = SDPUtils.matchPrefix(mediaSection, 'a=msid:');
+ if (spec.length === 1) {
+ parts = spec[0].substr(7).split(' ');
+ return {stream: parts[0], track: parts[1]};
+ }
+ var planB = SDPUtils.matchPrefix(mediaSection, 'a=ssrc:')
+ .map(function(line) {
+ return SDPUtils.parseSsrcMedia(line);
+ })
+ .filter(function(msidParts) {
+ return msidParts.attribute === 'msid';
+ });
+ if (planB.length > 0) {
+ parts = planB[0].value.split(' ');
+ return {stream: parts[0], track: parts[1]};
+ }
+ };
+
+ // SCTP
+ // parses draft-ietf-mmusic-sctp-sdp-26 first and falls back
+ // to draft-ietf-mmusic-sctp-sdp-05
+ SDPUtils.parseSctpDescription = function(mediaSection) {
+ var mline = SDPUtils.parseMLine(mediaSection);
+ var maxSizeLine = SDPUtils.matchPrefix(mediaSection, 'a=max-message-size:');
+ var maxMessageSize;
+ if (maxSizeLine.length > 0) {
+ maxMessageSize = parseInt(maxSizeLine[0].substr(19), 10);
+ }
+ if (isNaN(maxMessageSize)) {
+ maxMessageSize = 65536;
+ }
+ var sctpPort = SDPUtils.matchPrefix(mediaSection, 'a=sctp-port:');
+ if (sctpPort.length > 0) {
+ return {
+ port: parseInt(sctpPort[0].substr(12), 10),
+ protocol: mline.fmt,
+ maxMessageSize: maxMessageSize
+ };
+ }
+ var sctpMapLines = SDPUtils.matchPrefix(mediaSection, 'a=sctpmap:');
+ if (sctpMapLines.length > 0) {
+ var parts = SDPUtils.matchPrefix(mediaSection, 'a=sctpmap:')[0]
+ .substr(10)
+ .split(' ');
+ return {
+ port: parseInt(parts[0], 10),
+ protocol: parts[1],
+ maxMessageSize: maxMessageSize
+ };
+ }
+ };
+
+ // SCTP
+ // outputs the draft-ietf-mmusic-sctp-sdp-26 version that all browsers
+ // support by now receiving in this format, unless we originally parsed
+ // as the draft-ietf-mmusic-sctp-sdp-05 format (indicated by the m-line
+ // protocol of DTLS/SCTP -- without UDP/ or TCP/)
+ SDPUtils.writeSctpDescription = function(media, sctp) {
+ var output = [];
+ if (media.protocol !== 'DTLS/SCTP') {
+ output = [
+ 'm=' + media.kind + ' 9 ' + media.protocol + ' ' + sctp.protocol + '\r\n',
+ 'c=IN IP4 0.0.0.0\r\n',
+ 'a=sctp-port:' + sctp.port + '\r\n'
+ ];
+ } else {
+ output = [
+ 'm=' + media.kind + ' 9 ' + media.protocol + ' ' + sctp.port + '\r\n',
+ 'c=IN IP4 0.0.0.0\r\n',
+ 'a=sctpmap:' + sctp.port + ' ' + sctp.protocol + ' 65535\r\n'
+ ];
+ }
+ if (sctp.maxMessageSize !== undefined) {
+ output.push('a=max-message-size:' + sctp.maxMessageSize + '\r\n');
+ }
+ return output.join('');
+ };
+
+ // Generate a session ID for SDP.
+ // https://tools.ietf.org/html/draft-ietf-rtcweb-jsep-20#section-5.2.1
+ // recommends using a cryptographically random +ve 64-bit value
+ // but right now this should be acceptable and within the right range
+ SDPUtils.generateSessionId = function() {
+ return Math.random().toString().substr(2, 21);
+ };
+
+ // Write boilder plate for start of SDP
+ // sessId argument is optional - if not supplied it will
+ // be generated randomly
+ // sessVersion is optional and defaults to 2
+ // sessUser is optional and defaults to 'thisisadapterortc'
+ SDPUtils.writeSessionBoilerplate = function(sessId, sessVer, sessUser) {
+ var sessionId;
+ var version = sessVer !== undefined ? sessVer : 2;
+ if (sessId) {
+ sessionId = sessId;
+ } else {
+ sessionId = SDPUtils.generateSessionId();
+ }
+ var user = sessUser || 'thisisadapterortc';
+ // FIXME: sess-id should be an NTP timestamp.
+ return 'v=0\r\n' +
+ 'o=' + user + ' ' + sessionId + ' ' + version +
+ ' IN IP4 127.0.0.1\r\n' +
+ 's=-\r\n' +
+ 't=0 0\r\n';
+ };
+
+ SDPUtils.writeMediaSection = function(transceiver, caps, type, stream) {
+ var sdp = SDPUtils.writeRtpDescription(transceiver.kind, caps);
+
+ // Map ICE parameters (ufrag, pwd) to SDP.
+ sdp += SDPUtils.writeIceParameters(
+ transceiver.iceGatherer.getLocalParameters());
+
+ // Map DTLS parameters to SDP.
+ sdp += SDPUtils.writeDtlsParameters(
+ transceiver.dtlsTransport.getLocalParameters(),
+ type === 'offer' ? 'actpass' : 'active');
+
+ sdp += 'a=mid:' + transceiver.mid + '\r\n';
+
+ if (transceiver.direction) {
+ sdp += 'a=' + transceiver.direction + '\r\n';
+ } else if (transceiver.rtpSender && transceiver.rtpReceiver) {
+ sdp += 'a=sendrecv\r\n';
+ } else if (transceiver.rtpSender) {
+ sdp += 'a=sendonly\r\n';
+ } else if (transceiver.rtpReceiver) {
+ sdp += 'a=recvonly\r\n';
+ } else {
+ sdp += 'a=inactive\r\n';
+ }
+
+ if (transceiver.rtpSender) {
+ // spec.
+ var msid = 'msid:' + stream.id + ' ' +
+ transceiver.rtpSender.track.id + '\r\n';
+ sdp += 'a=' + msid;
+
+ // for Chrome.
+ sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].ssrc +
+ ' ' + msid;
+ if (transceiver.sendEncodingParameters[0].rtx) {
+ sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].rtx.ssrc +
+ ' ' + msid;
+ sdp += 'a=ssrc-group:FID ' +
+ transceiver.sendEncodingParameters[0].ssrc + ' ' +
+ transceiver.sendEncodingParameters[0].rtx.ssrc +
+ '\r\n';
+ }
+ }
+ // FIXME: this should be written by writeRtpDescription.
+ sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].ssrc +
+ ' cname:' + SDPUtils.localCName + '\r\n';
+ if (transceiver.rtpSender && transceiver.sendEncodingParameters[0].rtx) {
+ sdp += 'a=ssrc:' + transceiver.sendEncodingParameters[0].rtx.ssrc +
+ ' cname:' + SDPUtils.localCName + '\r\n';
+ }
+ return sdp;
+ };
+
+ // Gets the direction from the mediaSection or the sessionpart.
+ SDPUtils.getDirection = function(mediaSection, sessionpart) {
+ // Look for sendrecv, sendonly, recvonly, inactive, default to sendrecv.
+ var lines = SDPUtils.splitLines(mediaSection);
+ for (var i = 0; i < lines.length; i++) {
+ switch (lines[i]) {
+ case 'a=sendrecv':
+ case 'a=sendonly':
+ case 'a=recvonly':
+ case 'a=inactive':
+ return lines[i].substr(2);
+ // FIXME: What should happen here?
+ }
+ }
+ if (sessionpart) {
+ return SDPUtils.getDirection(sessionpart);
+ }
+ return 'sendrecv';
+ };
+
+ SDPUtils.getKind = function(mediaSection) {
+ var lines = SDPUtils.splitLines(mediaSection);
+ var mline = lines[0].split(' ');
+ return mline[0].substr(2);
+ };
+
+ SDPUtils.isRejected = function(mediaSection) {
+ return mediaSection.split(' ', 2)[1] === '0';
+ };
+
+ SDPUtils.parseMLine = function(mediaSection) {
+ var lines = SDPUtils.splitLines(mediaSection);
+ var parts = lines[0].substr(2).split(' ');
+ return {
+ kind: parts[0],
+ port: parseInt(parts[1], 10),
+ protocol: parts[2],
+ fmt: parts.slice(3).join(' ')
+ };
+ };
+
+ SDPUtils.parseOLine = function(mediaSection) {
+ var line = SDPUtils.matchPrefix(mediaSection, 'o=')[0];
+ var parts = line.substr(2).split(' ');
+ return {
+ username: parts[0],
+ sessionId: parts[1],
+ sessionVersion: parseInt(parts[2], 10),
+ netType: parts[3],
+ addressType: parts[4],
+ address: parts[5]
+ };
+ };
+
+ // a very naive interpretation of a valid SDP.
+ SDPUtils.isValidSDP = function(blob) {
+ if (typeof blob !== 'string' || blob.length === 0) {
+ return false;
+ }
+ var lines = SDPUtils.splitLines(blob);
+ for (var i = 0; i < lines.length; i++) {
+ if (lines[i].length < 2 || lines[i].charAt(1) !== '=') {
+ return false;
+ }
+ // TODO: check the modifier a bit more.
+ }
+ return true;
+ };
+
+ // Expose public methods.
+ {
+ module.exports = SDPUtils;
+ }
+ });
+
+ /*
+ * Copyright (c) 2017 The WebRTC project authors. All Rights Reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree.
+ */
+
+
+
+ function fixStatsType(stat) {
+ return {
+ inboundrtp: 'inbound-rtp',
+ outboundrtp: 'outbound-rtp',
+ candidatepair: 'candidate-pair',
+ localcandidate: 'local-candidate',
+ remotecandidate: 'remote-candidate'
+ }[stat.type] || stat.type;
+ }
+
+ function writeMediaSection(transceiver, caps, type, stream, dtlsRole) {
+ var sdp$1 = sdp.writeRtpDescription(transceiver.kind, caps);
+
+ // Map ICE parameters (ufrag, pwd) to SDP.
+ sdp$1 += sdp.writeIceParameters(
+ transceiver.iceGatherer.getLocalParameters());
+
+ // Map DTLS parameters to SDP.
+ sdp$1 += sdp.writeDtlsParameters(
+ transceiver.dtlsTransport.getLocalParameters(),
+ type === 'offer' ? 'actpass' : dtlsRole || 'active');
+
+ sdp$1 += 'a=mid:' + transceiver.mid + '\r\n';
+
+ if (transceiver.rtpSender && transceiver.rtpReceiver) {
+ sdp$1 += 'a=sendrecv\r\n';
+ } else if (transceiver.rtpSender) {
+ sdp$1 += 'a=sendonly\r\n';
+ } else if (transceiver.rtpReceiver) {
+ sdp$1 += 'a=recvonly\r\n';
+ } else {
+ sdp$1 += 'a=inactive\r\n';
+ }
+
+ if (transceiver.rtpSender) {
+ var trackId = transceiver.rtpSender._initialTrackId ||
+ transceiver.rtpSender.track.id;
+ transceiver.rtpSender._initialTrackId = trackId;
+ // spec.
+ var msid = 'msid:' + (stream ? stream.id : '-') + ' ' +
+ trackId + '\r\n';
+ sdp$1 += 'a=' + msid;
+ // for Chrome. Legacy should no longer be required.
+ sdp$1 += 'a=ssrc:' + transceiver.sendEncodingParameters[0].ssrc +
+ ' ' + msid;
+
+ // RTX
+ if (transceiver.sendEncodingParameters[0].rtx) {
+ sdp$1 += 'a=ssrc:' + transceiver.sendEncodingParameters[0].rtx.ssrc +
+ ' ' + msid;
+ sdp$1 += 'a=ssrc-group:FID ' +
+ transceiver.sendEncodingParameters[0].ssrc + ' ' +
+ transceiver.sendEncodingParameters[0].rtx.ssrc +
+ '\r\n';
+ }
+ }
+ // FIXME: this should be written by writeRtpDescription.
+ sdp$1 += 'a=ssrc:' + transceiver.sendEncodingParameters[0].ssrc +
+ ' cname:' + sdp.localCName + '\r\n';
+ if (transceiver.rtpSender && transceiver.sendEncodingParameters[0].rtx) {
+ sdp$1 += 'a=ssrc:' + transceiver.sendEncodingParameters[0].rtx.ssrc +
+ ' cname:' + sdp.localCName + '\r\n';
+ }
+ return sdp$1;
+ }
+
+ // Edge does not like
+ // 1) stun: filtered after 14393 unless ?transport=udp is present
+ // 2) turn: that does not have all of turn:host:port?transport=udp
+ // 3) turn: with ipv6 addresses
+ // 4) turn: occurring muliple times
+ function filterIceServers(iceServers, edgeVersion) {
+ var hasTurn = false;
+ iceServers = JSON.parse(JSON.stringify(iceServers));
+ return iceServers.filter(function(server) {
+ if (server && (server.urls || server.url)) {
+ var urls = server.urls || server.url;
+ if (server.url && !server.urls) {
+ console.warn('RTCIceServer.url is deprecated! Use urls instead.');
+ }
+ var isString = typeof urls === 'string';
+ if (isString) {
+ urls = [urls];
+ }
+ urls = urls.filter(function(url) {
+ var validTurn = url.indexOf('turn:') === 0 &&
+ url.indexOf('transport=udp') !== -1 &&
+ url.indexOf('turn:[') === -1 &&
+ !hasTurn;
+
+ if (validTurn) {
+ hasTurn = true;
+ return true;
+ }
+ return url.indexOf('stun:') === 0 && edgeVersion >= 14393 &&
+ url.indexOf('?transport=udp') === -1;
+ });
+
+ delete server.url;
+ server.urls = isString ? urls[0] : urls;
+ return !!urls.length;
+ }
+ });
+ }
+
+ // Determines the intersection of local and remote capabilities.
+ function getCommonCapabilities(localCapabilities, remoteCapabilities) {
+ var commonCapabilities = {
+ codecs: [],
+ headerExtensions: [],
+ fecMechanisms: []
+ };
+
+ var findCodecByPayloadType = function(pt, codecs) {
+ pt = parseInt(pt, 10);
+ for (var i = 0; i < codecs.length; i++) {
+ if (codecs[i].payloadType === pt ||
+ codecs[i].preferredPayloadType === pt) {
+ return codecs[i];
+ }
+ }
+ };
+
+ var rtxCapabilityMatches = function(lRtx, rRtx, lCodecs, rCodecs) {
+ var lCodec = findCodecByPayloadType(lRtx.parameters.apt, lCodecs);
+ var rCodec = findCodecByPayloadType(rRtx.parameters.apt, rCodecs);
+ return lCodec && rCodec &&
+ lCodec.name.toLowerCase() === rCodec.name.toLowerCase();
+ };
+
+ localCapabilities.codecs.forEach(function(lCodec) {
+ for (var i = 0; i < remoteCapabilities.codecs.length; i++) {
+ var rCodec = remoteCapabilities.codecs[i];
+ if (lCodec.name.toLowerCase() === rCodec.name.toLowerCase() &&
+ lCodec.clockRate === rCodec.clockRate) {
+ if (lCodec.name.toLowerCase() === 'rtx' &&
+ lCodec.parameters && rCodec.parameters.apt) {
+ // for RTX we need to find the local rtx that has a apt
+ // which points to the same local codec as the remote one.
+ if (!rtxCapabilityMatches(lCodec, rCodec,
+ localCapabilities.codecs, remoteCapabilities.codecs)) {
+ continue;
+ }
+ }
+ rCodec = JSON.parse(JSON.stringify(rCodec)); // deepcopy
+ // number of channels is the highest common number of channels
+ rCodec.numChannels = Math.min(lCodec.numChannels,
+ rCodec.numChannels);
+ // push rCodec so we reply with offerer payload type
+ commonCapabilities.codecs.push(rCodec);
+
+ // determine common feedback mechanisms
+ rCodec.rtcpFeedback = rCodec.rtcpFeedback.filter(function(fb) {
+ for (var j = 0; j < lCodec.rtcpFeedback.length; j++) {
+ if (lCodec.rtcpFeedback[j].type === fb.type &&
+ lCodec.rtcpFeedback[j].parameter === fb.parameter) {
+ return true;
+ }
+ }
+ return false;
+ });
+ // FIXME: also need to determine .parameters
+ // see https://github.com/openpeer/ortc/issues/569
+ break;
+ }
+ }
+ });
+
+ localCapabilities.headerExtensions.forEach(function(lHeaderExtension) {
+ for (var i = 0; i < remoteCapabilities.headerExtensions.length;
+ i++) {
+ var rHeaderExtension = remoteCapabilities.headerExtensions[i];
+ if (lHeaderExtension.uri === rHeaderExtension.uri) {
+ commonCapabilities.headerExtensions.push(rHeaderExtension);
+ break;
+ }
+ }
+ });
+
+ // FIXME: fecMechanisms
+ return commonCapabilities;
+ }
+
+ // is action=setLocalDescription with type allowed in signalingState
+ function isActionAllowedInSignalingState(action, type, signalingState) {
+ return {
+ offer: {
+ setLocalDescription: ['stable', 'have-local-offer'],
+ setRemoteDescription: ['stable', 'have-remote-offer']
+ },
+ answer: {
+ setLocalDescription: ['have-remote-offer', 'have-local-pranswer'],
+ setRemoteDescription: ['have-local-offer', 'have-remote-pranswer']
+ }
+ }[type][action].indexOf(signalingState) !== -1;
+ }
+
+ function maybeAddCandidate(iceTransport, candidate) {
+ // Edge's internal representation adds some fields therefore
+ // not all field褧 are taken into account.
+ var alreadyAdded = iceTransport.getRemoteCandidates()
+ .find(function(remoteCandidate) {
+ return candidate.foundation === remoteCandidate.foundation &&
+ candidate.ip === remoteCandidate.ip &&
+ candidate.port === remoteCandidate.port &&
+ candidate.priority === remoteCandidate.priority &&
+ candidate.protocol === remoteCandidate.protocol &&
+ candidate.type === remoteCandidate.type;
+ });
+ if (!alreadyAdded) {
+ iceTransport.addRemoteCandidate(candidate);
+ }
+ return !alreadyAdded;
+ }
+
+
+ function makeError(name, description) {
+ var e = new Error(description);
+ e.name = name;
+ // legacy error codes from https://heycam.github.io/webidl/#idl-DOMException-error-names
+ e.code = {
+ NotSupportedError: 9,
+ InvalidStateError: 11,
+ InvalidAccessError: 15,
+ TypeError: undefined,
+ OperationError: undefined
+ }[name];
+ return e;
+ }
+
+ var rtcpeerconnection = function(window, edgeVersion) {
+ // https://w3c.github.io/mediacapture-main/#mediastream
+ // Helper function to add the track to the stream and
+ // dispatch the event ourselves.
+ function addTrackToStreamAndFireEvent(track, stream) {
+ stream.addTrack(track);
+ stream.dispatchEvent(new window.MediaStreamTrackEvent('addtrack',
+ {track: track}));
+ }
+
+ function removeTrackFromStreamAndFireEvent(track, stream) {
+ stream.removeTrack(track);
+ stream.dispatchEvent(new window.MediaStreamTrackEvent('removetrack',
+ {track: track}));
+ }
+
+ function fireAddTrack(pc, track, receiver, streams) {
+ var trackEvent = new Event('track');
+ trackEvent.track = track;
+ trackEvent.receiver = receiver;
+ trackEvent.transceiver = {receiver: receiver};
+ trackEvent.streams = streams;
+ window.setTimeout(function() {
+ pc._dispatchEvent('track', trackEvent);
+ });
+ }
+
+ var RTCPeerConnection = function(config) {
+ var pc = this;
+
+ var _eventTarget = document.createDocumentFragment();
+ ['addEventListener', 'removeEventListener', 'dispatchEvent']
+ .forEach(function(method) {
+ pc[method] = _eventTarget[method].bind(_eventTarget);
+ });
+
+ this.canTrickleIceCandidates = null;
+
+ this.needNegotiation = false;
+
+ this.localStreams = [];
+ this.remoteStreams = [];
+
+ this._localDescription = null;
+ this._remoteDescription = null;
+
+ this.signalingState = 'stable';
+ this.iceConnectionState = 'new';
+ this.connectionState = 'new';
+ this.iceGatheringState = 'new';
+
+ config = JSON.parse(JSON.stringify(config || {}));
+
+ this.usingBundle = config.bundlePolicy === 'max-bundle';
+ if (config.rtcpMuxPolicy === 'negotiate') {
+ throw(makeError('NotSupportedError',
+ 'rtcpMuxPolicy \'negotiate\' is not supported'));
+ } else if (!config.rtcpMuxPolicy) {
+ config.rtcpMuxPolicy = 'require';
+ }
+
+ switch (config.iceTransportPolicy) {
+ case 'all':
+ case 'relay':
+ break;
+ default:
+ config.iceTransportPolicy = 'all';
+ break;
+ }
+
+ switch (config.bundlePolicy) {
+ case 'balanced':
+ case 'max-compat':
+ case 'max-bundle':
+ break;
+ default:
+ config.bundlePolicy = 'balanced';
+ break;
+ }
+
+ config.iceServers = filterIceServers(config.iceServers || [], edgeVersion);
+
+ this._iceGatherers = [];
+ if (config.iceCandidatePoolSize) {
+ for (var i = config.iceCandidatePoolSize; i > 0; i--) {
+ this._iceGatherers.push(new window.RTCIceGatherer({
+ iceServers: config.iceServers,
+ gatherPolicy: config.iceTransportPolicy
+ }));
+ }
+ } else {
+ config.iceCandidatePoolSize = 0;
+ }
+
+ this._config = config;
+
+ // per-track iceGathers, iceTransports, dtlsTransports, rtpSenders, ...
+ // everything that is needed to describe a SDP m-line.
+ this.transceivers = [];
+
+ this._sdpSessionId = sdp.generateSessionId();
+ this._sdpSessionVersion = 0;
+
+ this._dtlsRole = undefined; // role for a=setup to use in answers.
+
+ this._isClosed = false;
+ };
+
+ Object.defineProperty(RTCPeerConnection.prototype, 'localDescription', {
+ configurable: true,
+ get: function() {
+ return this._localDescription;
+ }
+ });
+ Object.defineProperty(RTCPeerConnection.prototype, 'remoteDescription', {
+ configurable: true,
+ get: function() {
+ return this._remoteDescription;
+ }
+ });
+
+ // set up event handlers on prototype
+ RTCPeerConnection.prototype.onicecandidate = null;
+ RTCPeerConnection.prototype.onaddstream = null;
+ RTCPeerConnection.prototype.ontrack = null;
+ RTCPeerConnection.prototype.onremovestream = null;
+ RTCPeerConnection.prototype.onsignalingstatechange = null;
+ RTCPeerConnection.prototype.oniceconnectionstatechange = null;
+ RTCPeerConnection.prototype.onconnectionstatechange = null;
+ RTCPeerConnection.prototype.onicegatheringstatechange = null;
+ RTCPeerConnection.prototype.onnegotiationneeded = null;
+ RTCPeerConnection.prototype.ondatachannel = null;
+
+ RTCPeerConnection.prototype._dispatchEvent = function(name, event) {
+ if (this._isClosed) {
+ return;
+ }
+ this.dispatchEvent(event);
+ if (typeof this['on' + name] === 'function') {
+ this['on' + name](event);
+ }
+ };
+
+ RTCPeerConnection.prototype._emitGatheringStateChange = function() {
+ var event = new Event('icegatheringstatechange');
+ this._dispatchEvent('icegatheringstatechange', event);
+ };
+
+ RTCPeerConnection.prototype.getConfiguration = function() {
+ return this._config;
+ };
+
+ RTCPeerConnection.prototype.getLocalStreams = function() {
+ return this.localStreams;
+ };
+
+ RTCPeerConnection.prototype.getRemoteStreams = function() {
+ return this.remoteStreams;
+ };
+
+ // internal helper to create a transceiver object.
+ // (which is not yet the same as the WebRTC 1.0 transceiver)
+ RTCPeerConnection.prototype._createTransceiver = function(kind, doNotAdd) {
+ var hasBundleTransport = this.transceivers.length > 0;
+ var transceiver = {
+ track: null,
+ iceGatherer: null,
+ iceTransport: null,
+ dtlsTransport: null,
+ localCapabilities: null,
+ remoteCapabilities: null,
+ rtpSender: null,
+ rtpReceiver: null,
+ kind: kind,
+ mid: null,
+ sendEncodingParameters: null,
+ recvEncodingParameters: null,
+ stream: null,
+ associatedRemoteMediaStreams: [],
+ wantReceive: true
+ };
+ if (this.usingBundle && hasBundleTransport) {
+ transceiver.iceTransport = this.transceivers[0].iceTransport;
+ transceiver.dtlsTransport = this.transceivers[0].dtlsTransport;
+ } else {
+ var transports = this._createIceAndDtlsTransports();
+ transceiver.iceTransport = transports.iceTransport;
+ transceiver.dtlsTransport = transports.dtlsTransport;
+ }
+ if (!doNotAdd) {
+ this.transceivers.push(transceiver);
+ }
+ return transceiver;
+ };
+
+ RTCPeerConnection.prototype.addTrack = function(track, stream) {
+ if (this._isClosed) {
+ throw makeError('InvalidStateError',
+ 'Attempted to call addTrack on a closed peerconnection.');
+ }
+
+ var alreadyExists = this.transceivers.find(function(s) {
+ return s.track === track;
+ });
+
+ if (alreadyExists) {
+ throw makeError('InvalidAccessError', 'Track already exists.');
+ }
+
+ var transceiver;
+ for (var i = 0; i < this.transceivers.length; i++) {
+ if (!this.transceivers[i].track &&
+ this.transceivers[i].kind === track.kind) {
+ transceiver = this.transceivers[i];
+ }
+ }
+ if (!transceiver) {
+ transceiver = this._createTransceiver(track.kind);
+ }
+
+ this._maybeFireNegotiationNeeded();
+
+ if (this.localStreams.indexOf(stream) === -1) {
+ this.localStreams.push(stream);
+ }
+
+ transceiver.track = track;
+ transceiver.stream = stream;
+ transceiver.rtpSender = new window.RTCRtpSender(track,
+ transceiver.dtlsTransport);
+ return transceiver.rtpSender;
+ };
+
+ RTCPeerConnection.prototype.addStream = function(stream) {
+ var pc = this;
+ if (edgeVersion >= 15025) {
+ stream.getTracks().forEach(function(track) {
+ pc.addTrack(track, stream);
+ });
+ } else {
+ // Clone is necessary for local demos mostly, attaching directly
+ // to two different senders does not work (build 10547).
+ // Fixed in 15025 (or earlier)
+ var clonedStream = stream.clone();
+ stream.getTracks().forEach(function(track, idx) {
+ var clonedTrack = clonedStream.getTracks()[idx];
+ track.addEventListener('enabled', function(event) {
+ clonedTrack.enabled = event.enabled;
+ });
+ });
+ clonedStream.getTracks().forEach(function(track) {
+ pc.addTrack(track, clonedStream);
+ });
+ }
+ };
+
+ RTCPeerConnection.prototype.removeTrack = function(sender) {
+ if (this._isClosed) {
+ throw makeError('InvalidStateError',
+ 'Attempted to call removeTrack on a closed peerconnection.');
+ }
+
+ if (!(sender instanceof window.RTCRtpSender)) {
+ throw new TypeError('Argument 1 of RTCPeerConnection.removeTrack ' +
+ 'does not implement interface RTCRtpSender.');
+ }
+
+ var transceiver = this.transceivers.find(function(t) {
+ return t.rtpSender === sender;
+ });
+
+ if (!transceiver) {
+ throw makeError('InvalidAccessError',
+ 'Sender was not created by this connection.');
+ }
+ var stream = transceiver.stream;
+
+ transceiver.rtpSender.stop();
+ transceiver.rtpSender = null;
+ transceiver.track = null;
+ transceiver.stream = null;
+
+ // remove the stream from the set of local streams
+ var localStreams = this.transceivers.map(function(t) {
+ return t.stream;
+ });
+ if (localStreams.indexOf(stream) === -1 &&
+ this.localStreams.indexOf(stream) > -1) {
+ this.localStreams.splice(this.localStreams.indexOf(stream), 1);
+ }
+
+ this._maybeFireNegotiationNeeded();
+ };
+
+ RTCPeerConnection.prototype.removeStream = function(stream) {
+ var pc = this;
+ stream.getTracks().forEach(function(track) {
+ var sender = pc.getSenders().find(function(s) {
+ return s.track === track;
+ });
+ if (sender) {
+ pc.removeTrack(sender);
+ }
+ });
+ };
+
+ RTCPeerConnection.prototype.getSenders = function() {
+ return this.transceivers.filter(function(transceiver) {
+ return !!transceiver.rtpSender;
+ })
+ .map(function(transceiver) {
+ return transceiver.rtpSender;
+ });
+ };
+
+ RTCPeerConnection.prototype.getReceivers = function() {
+ return this.transceivers.filter(function(transceiver) {
+ return !!transceiver.rtpReceiver;
+ })
+ .map(function(transceiver) {
+ return transceiver.rtpReceiver;
+ });
+ };
+
+
+ RTCPeerConnection.prototype._createIceGatherer = function(sdpMLineIndex,
+ usingBundle) {
+ var pc = this;
+ if (usingBundle && sdpMLineIndex > 0) {
+ return this.transceivers[0].iceGatherer;
+ } else if (this._iceGatherers.length) {
+ return this._iceGatherers.shift();
+ }
+ var iceGatherer = new window.RTCIceGatherer({
+ iceServers: this._config.iceServers,
+ gatherPolicy: this._config.iceTransportPolicy
+ });
+ Object.defineProperty(iceGatherer, 'state',
+ {value: 'new', writable: true}
+ );
+
+ this.transceivers[sdpMLineIndex].bufferedCandidateEvents = [];
+ this.transceivers[sdpMLineIndex].bufferCandidates = function(event) {
+ var end = !event.candidate || Object.keys(event.candidate).length === 0;
+ // polyfill since RTCIceGatherer.state is not implemented in
+ // Edge 10547 yet.
+ iceGatherer.state = end ? 'completed' : 'gathering';
+ if (pc.transceivers[sdpMLineIndex].bufferedCandidateEvents !== null) {
+ pc.transceivers[sdpMLineIndex].bufferedCandidateEvents.push(event);
+ }
+ };
+ iceGatherer.addEventListener('localcandidate',
+ this.transceivers[sdpMLineIndex].bufferCandidates);
+ return iceGatherer;
+ };
+
+ // start gathering from an RTCIceGatherer.
+ RTCPeerConnection.prototype._gather = function(mid, sdpMLineIndex) {
+ var pc = this;
+ var iceGatherer = this.transceivers[sdpMLineIndex].iceGatherer;
+ if (iceGatherer.onlocalcandidate) {
+ return;
+ }
+ var bufferedCandidateEvents =
+ this.transceivers[sdpMLineIndex].bufferedCandidateEvents;
+ this.transceivers[sdpMLineIndex].bufferedCandidateEvents = null;
+ iceGatherer.removeEventListener('localcandidate',
+ this.transceivers[sdpMLineIndex].bufferCandidates);
+ iceGatherer.onlocalcandidate = function(evt) {
+ if (pc.usingBundle && sdpMLineIndex > 0) {
+ // if we know that we use bundle we can drop candidates with
+ // 褧dpMLineIndex > 0. If we don't do this then our state gets
+ // confused since we dispose the extra ice gatherer.
+ return;
+ }
+ var event = new Event('icecandidate');
+ event.candidate = {sdpMid: mid, sdpMLineIndex: sdpMLineIndex};
+
+ var cand = evt.candidate;
+ // Edge emits an empty object for RTCIceCandidateComplete鈥�
+ var end = !cand || Object.keys(cand).length === 0;
+ if (end) {
+ // polyfill since RTCIceGatherer.state is not implemented in
+ // Edge 10547 yet.
+ if (iceGatherer.state === 'new' || iceGatherer.state === 'gathering') {
+ iceGatherer.state = 'completed';
+ }
+ } else {
+ if (iceGatherer.state === 'new') {
+ iceGatherer.state = 'gathering';
+ }
+ // RTCIceCandidate doesn't have a component, needs to be added
+ cand.component = 1;
+ // also the usernameFragment. TODO: update SDP to take both variants.
+ cand.ufrag = iceGatherer.getLocalParameters().usernameFragment;
+
+ var serializedCandidate = sdp.writeCandidate(cand);
+ event.candidate = Object.assign(event.candidate,
+ sdp.parseCandidate(serializedCandidate));
+
+ event.candidate.candidate = serializedCandidate;
+ event.candidate.toJSON = function() {
+ return {
+ candidate: event.candidate.candidate,
+ sdpMid: event.candidate.sdpMid,
+ sdpMLineIndex: event.candidate.sdpMLineIndex,
+ usernameFragment: event.candidate.usernameFragment
+ };
+ };
+ }
+
+ // update local description.
+ var sections = sdp.getMediaSections(pc._localDescription.sdp);
+ if (!end) {
+ sections[event.candidate.sdpMLineIndex] +=
+ 'a=' + event.candidate.candidate + '\r\n';
+ } else {
+ sections[event.candidate.sdpMLineIndex] +=
+ 'a=end-of-candidates\r\n';
+ }
+ pc._localDescription.sdp =
+ sdp.getDescription(pc._localDescription.sdp) +
+ sections.join('');
+ var complete = pc.transceivers.every(function(transceiver) {
+ return transceiver.iceGatherer &&
+ transceiver.iceGatherer.state === 'completed';
+ });
+
+ if (pc.iceGatheringState !== 'gathering') {
+ pc.iceGatheringState = 'gathering';
+ pc._emitGatheringStateChange();
+ }
+
+ // Emit candidate. Also emit null candidate when all gatherers are
+ // complete.
+ if (!end) {
+ pc._dispatchEvent('icecandidate', event);
+ }
+ if (complete) {
+ pc._dispatchEvent('icecandidate', new Event('icecandidate'));
+ pc.iceGatheringState = 'complete';
+ pc._emitGatheringStateChange();
+ }
+ };
+
+ // emit already gathered candidates.
+ window.setTimeout(function() {
+ bufferedCandidateEvents.forEach(function(e) {
+ iceGatherer.onlocalcandidate(e);
+ });
+ }, 0);
+ };
+
+ // Create ICE transport and DTLS transport.
+ RTCPeerConnection.prototype._createIceAndDtlsTransports = function() {
+ var pc = this;
+ var iceTransport = new window.RTCIceTransport(null);
+ iceTransport.onicestatechange = function() {
+ pc._updateIceConnectionState();
+ pc._updateConnectionState();
+ };
+
+ var dtlsTransport = new window.RTCDtlsTransport(iceTransport);
+ dtlsTransport.ondtlsstatechange = function() {
+ pc._updateConnectionState();
+ };
+ dtlsTransport.onerror = function() {
+ // onerror does not set state to failed by itself.
+ Object.defineProperty(dtlsTransport, 'state',
+ {value: 'failed', writable: true});
+ pc._updateConnectionState();
+ };
+
+ return {
+ iceTransport: iceTransport,
+ dtlsTransport: dtlsTransport
+ };
+ };
+
+ // Destroy ICE gatherer, ICE transport and DTLS transport.
+ // Without triggering the callbacks.
+ RTCPeerConnection.prototype._disposeIceAndDtlsTransports = function(
+ sdpMLineIndex) {
+ var iceGatherer = this.transceivers[sdpMLineIndex].iceGatherer;
+ if (iceGatherer) {
+ delete iceGatherer.onlocalcandidate;
+ delete this.transceivers[sdpMLineIndex].iceGatherer;
+ }
+ var iceTransport = this.transceivers[sdpMLineIndex].iceTransport;
+ if (iceTransport) {
+ delete iceTransport.onicestatechange;
+ delete this.transceivers[sdpMLineIndex].iceTransport;
+ }
+ var dtlsTransport = this.transceivers[sdpMLineIndex].dtlsTransport;
+ if (dtlsTransport) {
+ delete dtlsTransport.ondtlsstatechange;
+ delete dtlsTransport.onerror;
+ delete this.transceivers[sdpMLineIndex].dtlsTransport;
+ }
+ };
+
+ // Start the RTP Sender and Receiver for a transceiver.
+ RTCPeerConnection.prototype._transceive = function(transceiver,
+ send, recv) {
+ var params = getCommonCapabilities(transceiver.localCapabilities,
+ transceiver.remoteCapabilities);
+ if (send && transceiver.rtpSender) {
+ params.encodings = transceiver.sendEncodingParameters;
+ params.rtcp = {
+ cname: sdp.localCName,
+ compound: transceiver.rtcpParameters.compound
+ };
+ if (transceiver.recvEncodingParameters.length) {
+ params.rtcp.ssrc = transceiver.recvEncodingParameters[0].ssrc;
+ }
+ transceiver.rtpSender.send(params);
+ }
+ if (recv && transceiver.rtpReceiver && params.codecs.length > 0) {
+ // remove RTX field in Edge 14942
+ if (transceiver.kind === 'video'
+ && transceiver.recvEncodingParameters
+ && edgeVersion < 15019) {
+ transceiver.recvEncodingParameters.forEach(function(p) {
+ delete p.rtx;
+ });
+ }
+ if (transceiver.recvEncodingParameters.length) {
+ params.encodings = transceiver.recvEncodingParameters;
+ } else {
+ params.encodings = [{}];
+ }
+ params.rtcp = {
+ compound: transceiver.rtcpParameters.compound
+ };
+ if (transceiver.rtcpParameters.cname) {
+ params.rtcp.cname = transceiver.rtcpParameters.cname;
+ }
+ if (transceiver.sendEncodingParameters.length) {
+ params.rtcp.ssrc = transceiver.sendEncodingParameters[0].ssrc;
+ }
+ transceiver.rtpReceiver.receive(params);
+ }
+ };
+
+ RTCPeerConnection.prototype.setLocalDescription = function(description) {
+ var pc = this;
+
+ // Note: pranswer is not supported.
+ if (['offer', 'answer'].indexOf(description.type) === -1) {
+ return Promise.reject(makeError('TypeError',
+ 'Unsupported type "' + description.type + '"'));
+ }
+
+ if (!isActionAllowedInSignalingState('setLocalDescription',
+ description.type, pc.signalingState) || pc._isClosed) {
+ return Promise.reject(makeError('InvalidStateError',
+ 'Can not set local ' + description.type +
+ ' in state ' + pc.signalingState));
+ }
+
+ var sections;
+ var sessionpart;
+ if (description.type === 'offer') {
+ // VERY limited support for SDP munging. Limited to:
+ // * changing the order of codecs
+ sections = sdp.splitSections(description.sdp);
+ sessionpart = sections.shift();
+ sections.forEach(function(mediaSection, sdpMLineIndex) {
+ var caps = sdp.parseRtpParameters(mediaSection);
+ pc.transceivers[sdpMLineIndex].localCapabilities = caps;
+ });
+
+ pc.transceivers.forEach(function(transceiver, sdpMLineIndex) {
+ pc._gather(transceiver.mid, sdpMLineIndex);
+ });
+ } else if (description.type === 'answer') {
+ sections = sdp.splitSections(pc._remoteDescription.sdp);
+ sessionpart = sections.shift();
+ var isIceLite = sdp.matchPrefix(sessionpart,
+ 'a=ice-lite').length > 0;
+ sections.forEach(function(mediaSection, sdpMLineIndex) {
+ var transceiver = pc.transceivers[sdpMLineIndex];
+ var iceGatherer = transceiver.iceGatherer;
+ var iceTransport = transceiver.iceTransport;
+ var dtlsTransport = transceiver.dtlsTransport;
+ var localCapabilities = transceiver.localCapabilities;
+ var remoteCapabilities = transceiver.remoteCapabilities;
+
+ // treat bundle-only as not-rejected.
+ var rejected = sdp.isRejected(mediaSection) &&
+ sdp.matchPrefix(mediaSection, 'a=bundle-only').length === 0;
+
+ if (!rejected && !transceiver.rejected) {
+ var remoteIceParameters = sdp.getIceParameters(
+ mediaSection, sessionpart);
+ var remoteDtlsParameters = sdp.getDtlsParameters(
+ mediaSection, sessionpart);
+ if (isIceLite) {
+ remoteDtlsParameters.role = 'server';
+ }
+
+ if (!pc.usingBundle || sdpMLineIndex === 0) {
+ pc._gather(transceiver.mid, sdpMLineIndex);
+ if (iceTransport.state === 'new') {
+ iceTransport.start(iceGatherer, remoteIceParameters,
+ isIceLite ? 'controlling' : 'controlled');
+ }
+ if (dtlsTransport.state === 'new') {
+ dtlsTransport.start(remoteDtlsParameters);
+ }
+ }
+
+ // Calculate intersection of capabilities.
+ var params = getCommonCapabilities(localCapabilities,
+ remoteCapabilities);
+
+ // Start the RTCRtpSender. The RTCRtpReceiver for this
+ // transceiver has already been started in setRemoteDescription.
+ pc._transceive(transceiver,
+ params.codecs.length > 0,
+ false);
+ }
+ });
+ }
+
+ pc._localDescription = {
+ type: description.type,
+ sdp: description.sdp
+ };
+ if (description.type === 'offer') {
+ pc._updateSignalingState('have-local-offer');
+ } else {
+ pc._updateSignalingState('stable');
+ }
+
+ return Promise.resolve();
+ };
+
+ RTCPeerConnection.prototype.setRemoteDescription = function(description) {
+ var pc = this;
+
+ // Note: pranswer is not supported.
+ if (['offer', 'answer'].indexOf(description.type) === -1) {
+ return Promise.reject(makeError('TypeError',
+ 'Unsupported type "' + description.type + '"'));
+ }
+
+ if (!isActionAllowedInSignalingState('setRemoteDescription',
+ description.type, pc.signalingState) || pc._isClosed) {
+ return Promise.reject(makeError('InvalidStateError',
+ 'Can not set remote ' + description.type +
+ ' in state ' + pc.signalingState));
+ }
+
+ var streams = {};
+ pc.remoteStreams.forEach(function(stream) {
+ streams[stream.id] = stream;
+ });
+ var receiverList = [];
+ var sections = sdp.splitSections(description.sdp);
+ var sessionpart = sections.shift();
+ var isIceLite = sdp.matchPrefix(sessionpart,
+ 'a=ice-lite').length > 0;
+ var usingBundle = sdp.matchPrefix(sessionpart,
+ 'a=group:BUNDLE ').length > 0;
+ pc.usingBundle = usingBundle;
+ var iceOptions = sdp.matchPrefix(sessionpart,
+ 'a=ice-options:')[0];
+ if (iceOptions) {
+ pc.canTrickleIceCandidates = iceOptions.substr(14).split(' ')
+ .indexOf('trickle') >= 0;
+ } else {
+ pc.canTrickleIceCandidates = false;
+ }
+
+ sections.forEach(function(mediaSection, sdpMLineIndex) {
+ var lines = sdp.splitLines(mediaSection);
+ var kind = sdp.getKind(mediaSection);
+ // treat bundle-only as not-rejected.
+ var rejected = sdp.isRejected(mediaSection) &&
+ sdp.matchPrefix(mediaSection, 'a=bundle-only').length === 0;
+ var protocol = lines[0].substr(2).split(' ')[2];
+
+ var direction = sdp.getDirection(mediaSection, sessionpart);
+ var remoteMsid = sdp.parseMsid(mediaSection);
+
+ var mid = sdp.getMid(mediaSection) || sdp.generateIdentifier();
+
+ // Reject datachannels which are not implemented yet.
+ if (rejected || (kind === 'application' && (protocol === 'DTLS/SCTP' ||
+ protocol === 'UDP/DTLS/SCTP'))) {
+ // TODO: this is dangerous in the case where a non-rejected m-line
+ // becomes rejected.
+ pc.transceivers[sdpMLineIndex] = {
+ mid: mid,
+ kind: kind,
+ protocol: protocol,
+ rejected: true
+ };
+ return;
+ }
+
+ if (!rejected && pc.transceivers[sdpMLineIndex] &&
+ pc.transceivers[sdpMLineIndex].rejected) {
+ // recycle a rejected transceiver.
+ pc.transceivers[sdpMLineIndex] = pc._createTransceiver(kind, true);
+ }
+
+ var transceiver;
+ var iceGatherer;
+ var iceTransport;
+ var dtlsTransport;
+ var rtpReceiver;
+ var sendEncodingParameters;
+ var recvEncodingParameters;
+ var localCapabilities;
+
+ var track;
+ // FIXME: ensure the mediaSection has rtcp-mux set.
+ var remoteCapabilities = sdp.parseRtpParameters(mediaSection);
+ var remoteIceParameters;
+ var remoteDtlsParameters;
+ if (!rejected) {
+ remoteIceParameters = sdp.getIceParameters(mediaSection,
+ sessionpart);
+ remoteDtlsParameters = sdp.getDtlsParameters(mediaSection,
+ sessionpart);
+ remoteDtlsParameters.role = 'client';
+ }
+ recvEncodingParameters =
+ sdp.parseRtpEncodingParameters(mediaSection);
+
+ var rtcpParameters = sdp.parseRtcpParameters(mediaSection);
+
+ var isComplete = sdp.matchPrefix(mediaSection,
+ 'a=end-of-candidates', sessionpart).length > 0;
+ var cands = sdp.matchPrefix(mediaSection, 'a=candidate:')
+ .map(function(cand) {
+ return sdp.parseCandidate(cand);
+ })
+ .filter(function(cand) {
+ return cand.component === 1;
+ });
+
+ // Check if we can use BUNDLE and dispose transports.
+ if ((description.type === 'offer' || description.type === 'answer') &&
+ !rejected && usingBundle && sdpMLineIndex > 0 &&
+ pc.transceivers[sdpMLineIndex]) {
+ pc._disposeIceAndDtlsTransports(sdpMLineIndex);
+ pc.transceivers[sdpMLineIndex].iceGatherer =
+ pc.transceivers[0].iceGatherer;
+ pc.transceivers[sdpMLineIndex].iceTransport =
+ pc.transceivers[0].iceTransport;
+ pc.transceivers[sdpMLineIndex].dtlsTransport =
+ pc.transceivers[0].dtlsTransport;
+ if (pc.transceivers[sdpMLineIndex].rtpSender) {
+ pc.transceivers[sdpMLineIndex].rtpSender.setTransport(
+ pc.transceivers[0].dtlsTransport);
+ }
+ if (pc.transceivers[sdpMLineIndex].rtpReceiver) {
+ pc.transceivers[sdpMLineIndex].rtpReceiver.setTransport(
+ pc.transceivers[0].dtlsTransport);
+ }
+ }
+ if (description.type === 'offer' && !rejected) {
+ transceiver = pc.transceivers[sdpMLineIndex] ||
+ pc._createTransceiver(kind);
+ transceiver.mid = mid;
+
+ if (!transceiver.iceGatherer) {
+ transceiver.iceGatherer = pc._createIceGatherer(sdpMLineIndex,
+ usingBundle);
+ }
+
+ if (cands.length && transceiver.iceTransport.state === 'new') {
+ if (isComplete && (!usingBundle || sdpMLineIndex === 0)) {
+ transceiver.iceTransport.setRemoteCandidates(cands);
+ } else {
+ cands.forEach(function(candidate) {
+ maybeAddCandidate(transceiver.iceTransport, candidate);
+ });
+ }
+ }
+
+ localCapabilities = window.RTCRtpReceiver.getCapabilities(kind);
+
+ // filter RTX until additional stuff needed for RTX is implemented
+ // in adapter.js
+ if (edgeVersion < 15019) {
+ localCapabilities.codecs = localCapabilities.codecs.filter(
+ function(codec) {
+ return codec.name !== 'rtx';
+ });
+ }
+
+ sendEncodingParameters = transceiver.sendEncodingParameters || [{
+ ssrc: (2 * sdpMLineIndex + 2) * 1001
+ }];
+
+ // TODO: rewrite to use http://w3c.github.io/webrtc-pc/#set-associated-remote-streams
+ var isNewTrack = false;
+ if (direction === 'sendrecv' || direction === 'sendonly') {
+ isNewTrack = !transceiver.rtpReceiver;
+ rtpReceiver = transceiver.rtpReceiver ||
+ new window.RTCRtpReceiver(transceiver.dtlsTransport, kind);
+
+ if (isNewTrack) {
+ var stream;
+ track = rtpReceiver.track;
+ // FIXME: does not work with Plan B.
+ if (remoteMsid && remoteMsid.stream === '-') ; else if (remoteMsid) {
+ if (!streams[remoteMsid.stream]) {
+ streams[remoteMsid.stream] = new window.MediaStream();
+ Object.defineProperty(streams[remoteMsid.stream], 'id', {
+ get: function() {
+ return remoteMsid.stream;
+ }
+ });
+ }
+ Object.defineProperty(track, 'id', {
+ get: function() {
+ return remoteMsid.track;
+ }
+ });
+ stream = streams[remoteMsid.stream];
+ } else {
+ if (!streams.default) {
+ streams.default = new window.MediaStream();
+ }
+ stream = streams.default;
+ }
+ if (stream) {
+ addTrackToStreamAndFireEvent(track, stream);
+ transceiver.associatedRemoteMediaStreams.push(stream);
+ }
+ receiverList.push([track, rtpReceiver, stream]);
+ }
+ } else if (transceiver.rtpReceiver && transceiver.rtpReceiver.track) {
+ transceiver.associatedRemoteMediaStreams.forEach(function(s) {
+ var nativeTrack = s.getTracks().find(function(t) {
+ return t.id === transceiver.rtpReceiver.track.id;
+ });
+ if (nativeTrack) {
+ removeTrackFromStreamAndFireEvent(nativeTrack, s);
+ }
+ });
+ transceiver.associatedRemoteMediaStreams = [];
+ }
+
+ transceiver.localCapabilities = localCapabilities;
+ transceiver.remoteCapabilities = remoteCapabilities;
+ transceiver.rtpReceiver = rtpReceiver;
+ transceiver.rtcpParameters = rtcpParameters;
+ transceiver.sendEncodingParameters = sendEncodingParameters;
+ transceiver.recvEncodingParameters = recvEncodingParameters;
+
+ // Start the RTCRtpReceiver now. The RTPSender is started in
+ // setLocalDescription.
+ pc._transceive(pc.transceivers[sdpMLineIndex],
+ false,
+ isNewTrack);
+ } else if (description.type === 'answer' && !rejected) {
+ transceiver = pc.transceivers[sdpMLineIndex];
+ iceGatherer = transceiver.iceGatherer;
+ iceTransport = transceiver.iceTransport;
+ dtlsTransport = transceiver.dtlsTransport;
+ rtpReceiver = transceiver.rtpReceiver;
+ sendEncodingParameters = transceiver.sendEncodingParameters;
+ localCapabilities = transceiver.localCapabilities;
+
+ pc.transceivers[sdpMLineIndex].recvEncodingParameters =
+ recvEncodingParameters;
+ pc.transceivers[sdpMLineIndex].remoteCapabilities =
+ remoteCapabilities;
+ pc.transceivers[sdpMLineIndex].rtcpParameters = rtcpParameters;
+
+ if (cands.length && iceTransport.state === 'new') {
+ if ((isIceLite || isComplete) &&
+ (!usingBundle || sdpMLineIndex === 0)) {
+ iceTransport.setRemoteCandidates(cands);
+ } else {
+ cands.forEach(function(candidate) {
+ maybeAddCandidate(transceiver.iceTransport, candidate);
+ });
+ }
+ }
+
+ if (!usingBundle || sdpMLineIndex === 0) {
+ if (iceTransport.state === 'new') {
+ iceTransport.start(iceGatherer, remoteIceParameters,
+ 'controlling');
+ }
+ if (dtlsTransport.state === 'new') {
+ dtlsTransport.start(remoteDtlsParameters);
+ }
+ }
+
+ // If the offer contained RTX but the answer did not,
+ // remove RTX from sendEncodingParameters.
+ var commonCapabilities = getCommonCapabilities(
+ transceiver.localCapabilities,
+ transceiver.remoteCapabilities);
+
+ var hasRtx = commonCapabilities.codecs.filter(function(c) {
+ return c.name.toLowerCase() === 'rtx';
+ }).length;
+ if (!hasRtx && transceiver.sendEncodingParameters[0].rtx) {
+ delete transceiver.sendEncodingParameters[0].rtx;
+ }
+
+ pc._transceive(transceiver,
+ direction === 'sendrecv' || direction === 'recvonly',
+ direction === 'sendrecv' || direction === 'sendonly');
+
+ // TODO: rewrite to use http://w3c.github.io/webrtc-pc/#set-associated-remote-streams
+ if (rtpReceiver &&
+ (direction === 'sendrecv' || direction === 'sendonly')) {
+ track = rtpReceiver.track;
+ if (remoteMsid) {
+ if (!streams[remoteMsid.stream]) {
+ streams[remoteMsid.stream] = new window.MediaStream();
+ }
+ addTrackToStreamAndFireEvent(track, streams[remoteMsid.stream]);
+ receiverList.push([track, rtpReceiver, streams[remoteMsid.stream]]);
+ } else {
+ if (!streams.default) {
+ streams.default = new window.MediaStream();
+ }
+ addTrackToStreamAndFireEvent(track, streams.default);
+ receiverList.push([track, rtpReceiver, streams.default]);
+ }
+ } else {
+ // FIXME: actually the receiver should be created later.
+ delete transceiver.rtpReceiver;
+ }
+ }
+ });
+
+ if (pc._dtlsRole === undefined) {
+ pc._dtlsRole = description.type === 'offer' ? 'active' : 'passive';
+ }
+
+ pc._remoteDescription = {
+ type: description.type,
+ sdp: description.sdp
+ };
+ if (description.type === 'offer') {
+ pc._updateSignalingState('have-remote-offer');
+ } else {
+ pc._updateSignalingState('stable');
+ }
+ Object.keys(streams).forEach(function(sid) {
+ var stream = streams[sid];
+ if (stream.getTracks().length) {
+ if (pc.remoteStreams.indexOf(stream) === -1) {
+ pc.remoteStreams.push(stream);
+ var event = new Event('addstream');
+ event.stream = stream;
+ window.setTimeout(function() {
+ pc._dispatchEvent('addstream', event);
+ });
+ }
+
+ receiverList.forEach(function(item) {
+ var track = item[0];
+ var receiver = item[1];
+ if (stream.id !== item[2].id) {
+ return;
+ }
+ fireAddTrack(pc, track, receiver, [stream]);
+ });
+ }
+ });
+ receiverList.forEach(function(item) {
+ if (item[2]) {
+ return;
+ }
+ fireAddTrack(pc, item[0], item[1], []);
+ });
+
+ // check whether addIceCandidate({}) was called within four seconds after
+ // setRemoteDescription.
+ window.setTimeout(function() {
+ if (!(pc && pc.transceivers)) {
+ return;
+ }
+ pc.transceivers.forEach(function(transceiver) {
+ if (transceiver.iceTransport &&
+ transceiver.iceTransport.state === 'new' &&
+ transceiver.iceTransport.getRemoteCandidates().length > 0) {
+ console.warn('Timeout for addRemoteCandidate. Consider sending ' +
+ 'an end-of-candidates notification');
+ transceiver.iceTransport.addRemoteCandidate({});
+ }
+ });
+ }, 4000);
+
+ return Promise.resolve();
+ };
+
+ RTCPeerConnection.prototype.close = function() {
+ this.transceivers.forEach(function(transceiver) {
+ /* not yet
+ if (transceiver.iceGatherer) {
+ transceiver.iceGatherer.close();
+ }
+ */
+ if (transceiver.iceTransport) {
+ transceiver.iceTransport.stop();
+ }
+ if (transceiver.dtlsTransport) {
+ transceiver.dtlsTransport.stop();
+ }
+ if (transceiver.rtpSender) {
+ transceiver.rtpSender.stop();
+ }
+ if (transceiver.rtpReceiver) {
+ transceiver.rtpReceiver.stop();
+ }
+ });
+ // FIXME: clean up tracks, local streams, remote streams, etc
+ this._isClosed = true;
+ this._updateSignalingState('closed');
+ };
+
+ // Update the signaling state.
+ RTCPeerConnection.prototype._updateSignalingState = function(newState) {
+ this.signalingState = newState;
+ var event = new Event('signalingstatechange');
+ this._dispatchEvent('signalingstatechange', event);
+ };
+
+ // Determine whether to fire the negotiationneeded event.
+ RTCPeerConnection.prototype._maybeFireNegotiationNeeded = function() {
+ var pc = this;
+ if (this.signalingState !== 'stable' || this.needNegotiation === true) {
+ return;
+ }
+ this.needNegotiation = true;
+ window.setTimeout(function() {
+ if (pc.needNegotiation) {
+ pc.needNegotiation = false;
+ var event = new Event('negotiationneeded');
+ pc._dispatchEvent('negotiationneeded', event);
+ }
+ }, 0);
+ };
+
+ // Update the ice connection state.
+ RTCPeerConnection.prototype._updateIceConnectionState = function() {
+ var newState;
+ var states = {
+ 'new': 0,
+ closed: 0,
+ checking: 0,
+ connected: 0,
+ completed: 0,
+ disconnected: 0,
+ failed: 0
+ };
+ this.transceivers.forEach(function(transceiver) {
+ if (transceiver.iceTransport && !transceiver.rejected) {
+ states[transceiver.iceTransport.state]++;
+ }
+ });
+
+ newState = 'new';
+ if (states.failed > 0) {
+ newState = 'failed';
+ } else if (states.checking > 0) {
+ newState = 'checking';
+ } else if (states.disconnected > 0) {
+ newState = 'disconnected';
+ } else if (states.new > 0) {
+ newState = 'new';
+ } else if (states.connected > 0) {
+ newState = 'connected';
+ } else if (states.completed > 0) {
+ newState = 'completed';
+ }
+
+ if (newState !== this.iceConnectionState) {
+ this.iceConnectionState = newState;
+ var event = new Event('iceconnectionstatechange');
+ this._dispatchEvent('iceconnectionstatechange', event);
+ }
+ };
+
+ // Update the connection state.
+ RTCPeerConnection.prototype._updateConnectionState = function() {
+ var newState;
+ var states = {
+ 'new': 0,
+ closed: 0,
+ connecting: 0,
+ connected: 0,
+ completed: 0,
+ disconnected: 0,
+ failed: 0
+ };
+ this.transceivers.forEach(function(transceiver) {
+ if (transceiver.iceTransport && transceiver.dtlsTransport &&
+ !transceiver.rejected) {
+ 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) {
+ newState = 'connecting';
+ } else if (states.disconnected > 0) {
+ newState = 'disconnected';
+ } else if (states.new > 0) {
+ newState = 'new';
+ } else if (states.connected > 0) {
+ newState = 'connected';
+ }
+
+ if (newState !== this.connectionState) {
+ this.connectionState = newState;
+ var event = new Event('connectionstatechange');
+ this._dispatchEvent('connectionstatechange', event);
+ }
+ };
+
+ RTCPeerConnection.prototype.createOffer = function() {
+ var pc = this;
+
+ if (pc._isClosed) {
+ return Promise.reject(makeError('InvalidStateError',
+ 'Can not call createOffer after close'));
+ }
+
+ var numAudioTracks = pc.transceivers.filter(function(t) {
+ return t.kind === 'audio';
+ }).length;
+ var numVideoTracks = pc.transceivers.filter(function(t) {
+ return t.kind === 'video';
+ }).length;
+
+ // Determine number of audio and video tracks we need to send/recv.
+ var offerOptions = arguments[0];
+ if (offerOptions) {
+ // Reject Chrome legacy constraints.
+ if (offerOptions.mandatory || offerOptions.optional) {
+ throw new TypeError(
+ 'Legacy mandatory/optional constraints not supported.');
+ }
+ if (offerOptions.offerToReceiveAudio !== undefined) {
+ if (offerOptions.offerToReceiveAudio === true) {
+ numAudioTracks = 1;
+ } else if (offerOptions.offerToReceiveAudio === false) {
+ numAudioTracks = 0;
+ } else {
+ numAudioTracks = offerOptions.offerToReceiveAudio;
+ }
+ }
+ if (offerOptions.offerToReceiveVideo !== undefined) {
+ if (offerOptions.offerToReceiveVideo === true) {
+ numVideoTracks = 1;
+ } else if (offerOptions.offerToReceiveVideo === false) {
+ numVideoTracks = 0;
+ } else {
+ numVideoTracks = offerOptions.offerToReceiveVideo;
+ }
+ }
+ }
+
+ pc.transceivers.forEach(function(transceiver) {
+ if (transceiver.kind === 'audio') {
+ numAudioTracks--;
+ if (numAudioTracks < 0) {
+ transceiver.wantReceive = false;
+ }
+ } else if (transceiver.kind === 'video') {
+ numVideoTracks--;
+ if (numVideoTracks < 0) {
+ transceiver.wantReceive = false;
+ }
+ }
+ });
+
+ // Create M-lines for recvonly streams.
+ while (numAudioTracks > 0 || numVideoTracks > 0) {
+ if (numAudioTracks > 0) {
+ pc._createTransceiver('audio');
+ numAudioTracks--;
+ }
+ if (numVideoTracks > 0) {
+ pc._createTransceiver('video');
+ numVideoTracks--;
+ }
+ }
+
+ var sdp$1 = sdp.writeSessionBoilerplate(pc._sdpSessionId,
+ pc._sdpSessionVersion++);
+ pc.transceivers.forEach(function(transceiver, sdpMLineIndex) {
+ // For each track, create an ice gatherer, ice transport,
+ // dtls transport, potentially rtpsender and rtpreceiver.
+ var track = transceiver.track;
+ var kind = transceiver.kind;
+ var mid = transceiver.mid || sdp.generateIdentifier();
+ transceiver.mid = mid;
+
+ if (!transceiver.iceGatherer) {
+ transceiver.iceGatherer = pc._createIceGatherer(sdpMLineIndex,
+ pc.usingBundle);
+ }
+
+ var localCapabilities = window.RTCRtpSender.getCapabilities(kind);
+ // filter RTX until additional stuff needed for RTX is implemented
+ // in adapter.js
+ if (edgeVersion < 15019) {
+ localCapabilities.codecs = localCapabilities.codecs.filter(
+ function(codec) {
+ return codec.name !== 'rtx';
+ });
+ }
+ localCapabilities.codecs.forEach(function(codec) {
+ // work around https://bugs.chromium.org/p/webrtc/issues/detail?id=6552
+ // by adding level-asymmetry-allowed=1
+ if (codec.name === 'H264' &&
+ codec.parameters['level-asymmetry-allowed'] === undefined) {
+ codec.parameters['level-asymmetry-allowed'] = '1';
+ }
+
+ // for subsequent offers, we might have to re-use the payload
+ // type of the last offer.
+ if (transceiver.remoteCapabilities &&
+ transceiver.remoteCapabilities.codecs) {
+ transceiver.remoteCapabilities.codecs.forEach(function(remoteCodec) {
+ if (codec.name.toLowerCase() === remoteCodec.name.toLowerCase() &&
+ codec.clockRate === remoteCodec.clockRate) {
+ codec.preferredPayloadType = remoteCodec.payloadType;
+ }
+ });
+ }
+ });
+ localCapabilities.headerExtensions.forEach(function(hdrExt) {
+ var remoteExtensions = transceiver.remoteCapabilities &&
+ transceiver.remoteCapabilities.headerExtensions || [];
+ remoteExtensions.forEach(function(rHdrExt) {
+ if (hdrExt.uri === rHdrExt.uri) {
+ hdrExt.id = rHdrExt.id;
+ }
+ });
+ });
+
+ // generate an ssrc now, to be used later in rtpSender.send
+ var sendEncodingParameters = transceiver.sendEncodingParameters || [{
+ ssrc: (2 * sdpMLineIndex + 1) * 1001
+ }];
+ if (track) {
+ // add RTX
+ if (edgeVersion >= 15019 && kind === 'video' &&
+ !sendEncodingParameters[0].rtx) {
+ sendEncodingParameters[0].rtx = {
+ ssrc: sendEncodingParameters[0].ssrc + 1
+ };
+ }
+ }
+
+ if (transceiver.wantReceive) {
+ transceiver.rtpReceiver = new window.RTCRtpReceiver(
+ transceiver.dtlsTransport, kind);
+ }
+
+ transceiver.localCapabilities = localCapabilities;
+ transceiver.sendEncodingParameters = sendEncodingParameters;
+ });
+
+ // always offer BUNDLE and dispose on return if not supported.
+ if (pc._config.bundlePolicy !== 'max-compat') {
+ sdp$1 += 'a=group:BUNDLE ' + pc.transceivers.map(function(t) {
+ return t.mid;
+ }).join(' ') + '\r\n';
+ }
+ sdp$1 += 'a=ice-options:trickle\r\n';
+
+ pc.transceivers.forEach(function(transceiver, sdpMLineIndex) {
+ sdp$1 += writeMediaSection(transceiver, transceiver.localCapabilities,
+ 'offer', transceiver.stream, pc._dtlsRole);
+ sdp$1 += 'a=rtcp-rsize\r\n';
+
+ if (transceiver.iceGatherer && pc.iceGatheringState !== 'new' &&
+ (sdpMLineIndex === 0 || !pc.usingBundle)) {
+ transceiver.iceGatherer.getLocalCandidates().forEach(function(cand) {
+ cand.component = 1;
+ sdp$1 += 'a=' + sdp.writeCandidate(cand) + '\r\n';
+ });
+
+ if (transceiver.iceGatherer.state === 'completed') {
+ sdp$1 += 'a=end-of-candidates\r\n';
+ }
+ }
+ });
+
+ var desc = new window.RTCSessionDescription({
+ type: 'offer',
+ sdp: sdp$1
+ });
+ return Promise.resolve(desc);
+ };
+
+ RTCPeerConnection.prototype.createAnswer = function() {
+ var pc = this;
+
+ if (pc._isClosed) {
+ return Promise.reject(makeError('InvalidStateError',
+ 'Can not call createAnswer after close'));
+ }
+
+ if (!(pc.signalingState === 'have-remote-offer' ||
+ pc.signalingState === 'have-local-pranswer')) {
+ return Promise.reject(makeError('InvalidStateError',
+ 'Can not call createAnswer in signalingState ' + pc.signalingState));
+ }
+
+ var sdp$1 = sdp.writeSessionBoilerplate(pc._sdpSessionId,
+ pc._sdpSessionVersion++);
+ if (pc.usingBundle) {
+ sdp$1 += 'a=group:BUNDLE ' + pc.transceivers.map(function(t) {
+ return t.mid;
+ }).join(' ') + '\r\n';
+ }
+ sdp$1 += 'a=ice-options:trickle\r\n';
+
+ var mediaSectionsInOffer = sdp.getMediaSections(
+ pc._remoteDescription.sdp).length;
+ pc.transceivers.forEach(function(transceiver, sdpMLineIndex) {
+ if (sdpMLineIndex + 1 > mediaSectionsInOffer) {
+ return;
+ }
+ if (transceiver.rejected) {
+ if (transceiver.kind === 'application') {
+ if (transceiver.protocol === 'DTLS/SCTP') { // legacy fmt
+ sdp$1 += 'm=application 0 DTLS/SCTP 5000\r\n';
+ } else {
+ sdp$1 += 'm=application 0 ' + transceiver.protocol +
+ ' webrtc-datachannel\r\n';
+ }
+ } else if (transceiver.kind === 'audio') {
+ sdp$1 += 'm=audio 0 UDP/TLS/RTP/SAVPF 0\r\n' +
+ 'a=rtpmap:0 PCMU/8000\r\n';
+ } else if (transceiver.kind === 'video') {
+ sdp$1 += 'm=video 0 UDP/TLS/RTP/SAVPF 120\r\n' +
+ 'a=rtpmap:120 VP8/90000\r\n';
+ }
+ sdp$1 += 'c=IN IP4 0.0.0.0\r\n' +
+ 'a=inactive\r\n' +
+ 'a=mid:' + transceiver.mid + '\r\n';
+ return;
+ }
+
+ // FIXME: look at direction.
+ if (transceiver.stream) {
+ var localTrack;
+ if (transceiver.kind === 'audio') {
+ localTrack = transceiver.stream.getAudioTracks()[0];
+ } else if (transceiver.kind === 'video') {
+ localTrack = transceiver.stream.getVideoTracks()[0];
+ }
+ if (localTrack) {
+ // add RTX
+ if (edgeVersion >= 15019 && transceiver.kind === 'video' &&
+ !transceiver.sendEncodingParameters[0].rtx) {
+ transceiver.sendEncodingParameters[0].rtx = {
+ ssrc: transceiver.sendEncodingParameters[0].ssrc + 1
+ };
+ }
+ }
+ }
+
+ // Calculate intersection of capabilities.
+ var commonCapabilities = getCommonCapabilities(
+ transceiver.localCapabilities,
+ transceiver.remoteCapabilities);
+
+ var hasRtx = commonCapabilities.codecs.filter(function(c) {
+ return c.name.toLowerCase() === 'rtx';
+ }).length;
+ if (!hasRtx && transceiver.sendEncodingParameters[0].rtx) {
+ delete transceiver.sendEncodingParameters[0].rtx;
+ }
+
+ sdp$1 += writeMediaSection(transceiver, commonCapabilities,
+ 'answer', transceiver.stream, pc._dtlsRole);
+ if (transceiver.rtcpParameters &&
+ transceiver.rtcpParameters.reducedSize) {
+ sdp$1 += 'a=rtcp-rsize\r\n';
+ }
+ });
+
+ var desc = new window.RTCSessionDescription({
+ type: 'answer',
+ sdp: sdp$1
+ });
+ return Promise.resolve(desc);
+ };
+
+ RTCPeerConnection.prototype.addIceCandidate = function(candidate) {
+ var pc = this;
+ var sections;
+ if (candidate && !(candidate.sdpMLineIndex !== undefined ||
+ candidate.sdpMid)) {
+ return Promise.reject(new TypeError('sdpMLineIndex or sdpMid required'));
+ }
+
+ // TODO: needs to go into ops queue.
+ return new Promise(function(resolve, reject) {
+ if (!pc._remoteDescription) {
+ return reject(makeError('InvalidStateError',
+ 'Can not add ICE candidate without a remote description'));
+ } else if (!candidate || candidate.candidate === '') {
+ for (var j = 0; j < pc.transceivers.length; j++) {
+ if (pc.transceivers[j].rejected) {
+ continue;
+ }
+ pc.transceivers[j].iceTransport.addRemoteCandidate({});
+ sections = sdp.getMediaSections(pc._remoteDescription.sdp);
+ sections[j] += 'a=end-of-candidates\r\n';
+ pc._remoteDescription.sdp =
+ sdp.getDescription(pc._remoteDescription.sdp) +
+ sections.join('');
+ if (pc.usingBundle) {
+ break;
+ }
+ }
+ } else {
+ var sdpMLineIndex = candidate.sdpMLineIndex;
+ if (candidate.sdpMid) {
+ for (var i = 0; i < pc.transceivers.length; i++) {
+ if (pc.transceivers[i].mid === candidate.sdpMid) {
+ sdpMLineIndex = i;
+ break;
+ }
+ }
+ }
+ var transceiver = pc.transceivers[sdpMLineIndex];
+ if (transceiver) {
+ if (transceiver.rejected) {
+ return resolve();
+ }
+ var cand = Object.keys(candidate.candidate).length > 0 ?
+ sdp.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 resolve();
+ }
+ // Ignore RTCP candidates, we assume RTCP-MUX.
+ if (cand.component && cand.component !== 1) {
+ return resolve();
+ }
+ // when using bundle, avoid adding candidates to the wrong
+ // ice transport. And avoid adding candidates added in the SDP.
+ if (sdpMLineIndex === 0 || (sdpMLineIndex > 0 &&
+ transceiver.iceTransport !== pc.transceivers[0].iceTransport)) {
+ if (!maybeAddCandidate(transceiver.iceTransport, cand)) {
+ return reject(makeError('OperationError',
+ 'Can not add ICE candidate'));
+ }
+ }
+
+ // update the remoteDescription.
+ var candidateString = candidate.candidate.trim();
+ if (candidateString.indexOf('a=') === 0) {
+ candidateString = candidateString.substr(2);
+ }
+ sections = sdp.getMediaSections(pc._remoteDescription.sdp);
+ sections[sdpMLineIndex] += 'a=' +
+ (cand.type ? candidateString : 'end-of-candidates')
+ + '\r\n';
+ pc._remoteDescription.sdp =
+ sdp.getDescription(pc._remoteDescription.sdp) +
+ sections.join('');
+ } else {
+ return reject(makeError('OperationError',
+ 'Can not add ICE candidate'));
+ }
+ }
+ resolve();
+ });
+ };
+
+ RTCPeerConnection.prototype.getStats = function(selector) {
+ if (selector && selector instanceof window.MediaStreamTrack) {
+ var senderOrReceiver = null;
+ this.transceivers.forEach(function(transceiver) {
+ if (transceiver.rtpSender &&
+ transceiver.rtpSender.track === selector) {
+ senderOrReceiver = transceiver.rtpSender;
+ } else if (transceiver.rtpReceiver &&
+ transceiver.rtpReceiver.track === selector) {
+ senderOrReceiver = transceiver.rtpReceiver;
+ }
+ });
+ if (!senderOrReceiver) {
+ throw makeError('InvalidAccessError', 'Invalid selector.');
+ }
+ return senderOrReceiver.getStats();
+ }
+
+ var promises = [];
+ this.transceivers.forEach(function(transceiver) {
+ ['rtpSender', 'rtpReceiver', 'iceGatherer', 'iceTransport',
+ 'dtlsTransport'].forEach(function(method) {
+ if (transceiver[method]) {
+ promises.push(transceiver[method].getStats());
+ }
+ });
+ });
+ return Promise.all(promises).then(function(allStats) {
+ var results = new Map();
+ allStats.forEach(function(stats) {
+ stats.forEach(function(stat) {
+ results.set(stat.id, stat);
+ });
+ });
+ return results;
+ });
+ };
+
+ // fix low-level stat names and return Map instead of object.
+ var ortcObjects = ['RTCRtpSender', 'RTCRtpReceiver', 'RTCIceGatherer',
+ 'RTCIceTransport', 'RTCDtlsTransport'];
+ ortcObjects.forEach(function(ortcObjectName) {
+ var obj = window[ortcObjectName];
+ if (obj && obj.prototype && obj.prototype.getStats) {
+ var nativeGetstats = obj.prototype.getStats;
+ obj.prototype.getStats = function() {
+ return nativeGetstats.apply(this)
+ .then(function(nativeStats) {
+ var mapStats = new Map();
+ Object.keys(nativeStats).forEach(function(id) {
+ nativeStats[id].type = fixStatsType(nativeStats[id]);
+ mapStats.set(id, nativeStats[id]);
+ });
+ return mapStats;
+ });
+ };
+ }
+ });
+
+ // legacy callback shims. Should be moved to adapter.js some days.
+ var methods = ['createOffer', 'createAnswer'];
+ methods.forEach(function(method) {
+ var nativeMethod = RTCPeerConnection.prototype[method];
+ RTCPeerConnection.prototype[method] = function() {
+ var args = arguments;
+ if (typeof args[0] === 'function' ||
+ typeof args[1] === 'function') { // legacy
+ return nativeMethod.apply(this, [arguments[2]])
+ .then(function(description) {
+ if (typeof args[0] === 'function') {
+ args[0].apply(null, [description]);
+ }
+ }, function(error) {
+ if (typeof args[1] === 'function') {
+ args[1].apply(null, [error]);
+ }
+ });
+ }
+ return nativeMethod.apply(this, arguments);
+ };
+ });
+
+ methods = ['setLocalDescription', 'setRemoteDescription', 'addIceCandidate'];
+ methods.forEach(function(method) {
+ var nativeMethod = RTCPeerConnection.prototype[method];
+ RTCPeerConnection.prototype[method] = function() {
+ var args = arguments;
+ if (typeof args[1] === 'function' ||
+ typeof args[2] === 'function') { // legacy
+ return nativeMethod.apply(this, arguments)
+ .then(function() {
+ if (typeof args[1] === 'function') {
+ args[1].apply(null);
+ }
+ }, function(error) {
+ if (typeof args[2] === 'function') {
+ args[2].apply(null, [error]);
+ }
+ });
+ }
+ return nativeMethod.apply(this, arguments);
+ };
+ });
+
+ // getStats is special. It doesn't have a spec legacy method yet we support
+ // getStats(something, cb) without error callbacks.
+ ['getStats'].forEach(function(method) {
+ var nativeMethod = RTCPeerConnection.prototype[method];
+ RTCPeerConnection.prototype[method] = function() {
+ var args = arguments;
+ if (typeof args[1] === 'function') {
+ return nativeMethod.apply(this, arguments)
+ .then(function() {
+ if (typeof args[1] === 'function') {
+ args[1].apply(null);
+ }
+ });
+ }
+ return nativeMethod.apply(this, arguments);
+ };
+ });
+
+ return RTCPeerConnection;
+ };
+
+ /*
+ * 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.
+ */
+
+ function shimGetUserMedia$2(window) {
+ const navigator = window && window.navigator;
+
+ const shimError_ = function(e) {
+ return {
+ name: {PermissionDeniedError: 'NotAllowedError'}[e.name] || e.name,
+ message: e.message,
+ constraint: e.constraint,
+ toString() {
+ return this.name;
+ }
+ };
+ };
+
+ // getUserMedia error shim.
+ const origGetUserMedia = navigator.mediaDevices.getUserMedia.
+ bind(navigator.mediaDevices);
+ navigator.mediaDevices.getUserMedia = function(c) {
+ return origGetUserMedia(c).catch(e => Promise.reject(shimError_(e)));
+ };
+ }
+
+ /*
+ * Copyright (c) 2018 The adapter.js 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.
+ */
+
+ function shimGetDisplayMedia$1(window) {
+ if (!('getDisplayMedia' in window.navigator)) {
+ return;
+ }
+ if (!(window.navigator.mediaDevices)) {
+ return;
+ }
+ if (window.navigator.mediaDevices &&
+ 'getDisplayMedia' in window.navigator.mediaDevices) {
+ return;
+ }
+ window.navigator.mediaDevices.getDisplayMedia =
+ window.navigator.getDisplayMedia.bind(window.navigator);
+ }
+
+ /*
+ * 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.
+ */
+
+ function shimPeerConnection$1(window, browserDetails) {
+ if (window.RTCIceGatherer) {
+ if (!window.RTCIceCandidate) {
+ window.RTCIceCandidate = function RTCIceCandidate(args) {
+ return args;
+ };
+ }
+ if (!window.RTCSessionDescription) {
+ window.RTCSessionDescription = function RTCSessionDescription(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) {
+ const origMSTEnabled = Object.getOwnPropertyDescriptor(
+ window.MediaStreamTrack.prototype, 'enabled');
+ Object.defineProperty(window.MediaStreamTrack.prototype, 'enabled', {
+ set(value) {
+ origMSTEnabled.set.call(this, value);
+ const ev = new Event('enabled');
+ ev.enabled = value;
+ this.dispatchEvent(ev);
+ }
+ });
+ }
+ }
+
+ // ORTC defines the DTMF sender a bit different.
+ // https://github.com/w3c/ortc/issues/714
+ if (window.RTCRtpSender && !('dtmf' in window.RTCRtpSender.prototype)) {
+ Object.defineProperty(window.RTCRtpSender.prototype, 'dtmf', {
+ get() {
+ if (this._dtmf === undefined) {
+ if (this.track.kind === 'audio') {
+ this._dtmf = new window.RTCDtmfSender(this);
+ } else if (this.track.kind === 'video') {
+ this._dtmf = null;
+ }
+ }
+ return this._dtmf;
+ }
+ });
+ }
+ // Edge currently only implements the RTCDtmfSender, not the
+ // RTCDTMFSender alias. See http://draft.ortc.org/#rtcdtmfsender2*
+ if (window.RTCDtmfSender && !window.RTCDTMFSender) {
+ window.RTCDTMFSender = window.RTCDtmfSender;
+ }
+
+ const RTCPeerConnectionShim = rtcpeerconnection(window,
+ browserDetails.version);
+ window.RTCPeerConnection = function RTCPeerConnection(config) {
+ if (config && config.iceServers) {
+ config.iceServers = filterIceServers$1(config.iceServers,
+ browserDetails.version);
+ log$1('ICE servers after filtering:', config.iceServers);
+ }
+ return new RTCPeerConnectionShim(config);
+ };
+ window.RTCPeerConnection.prototype = RTCPeerConnectionShim.prototype;
+ }
+
+ function shimReplaceTrack(window) {
+ // ORTC has replaceTrack -- https://github.com/w3c/ortc/issues/614
+ if (window.RTCRtpSender &&
+ !('replaceTrack' in window.RTCRtpSender.prototype)) {
+ window.RTCRtpSender.prototype.replaceTrack =
+ window.RTCRtpSender.prototype.setTrack;
+ }
+ }
+
+ var edgeShim = /*#__PURE__*/Object.freeze({
+ __proto__: null,
+ shimPeerConnection: shimPeerConnection$1,
+ shimReplaceTrack: shimReplaceTrack,
+ shimGetUserMedia: shimGetUserMedia$2,
+ shimGetDisplayMedia: shimGetDisplayMedia$1
+ });
+
+ /*
+ * 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.
+ */
+
+ function shimGetUserMedia$1(window, browserDetails) {
+ const navigator = window && window.navigator;
+ const MediaStreamTrack = window && window.MediaStreamTrack;
+
+ navigator.getUserMedia = function(constraints, onSuccess, onError) {
+ // Replace Firefox 44+'s deprecation warning with unprefixed version.
+ deprecated('navigator.getUserMedia',
+ 'navigator.mediaDevices.getUserMedia');
+ navigator.mediaDevices.getUserMedia(constraints).then(onSuccess, onError);
+ };
+
+ if (!(browserDetails.version > 55 &&
+ 'autoGainControl' in navigator.mediaDevices.getSupportedConstraints())) {
+ const remap = function(obj, a, b) {
+ if (a in obj && !(b in obj)) {
+ obj[b] = obj[a];
+ delete obj[a];
+ }
+ };
+
+ const nativeGetUserMedia = navigator.mediaDevices.getUserMedia.
+ bind(navigator.mediaDevices);
+ navigator.mediaDevices.getUserMedia = function(c) {
+ if (typeof c === 'object' && typeof c.audio === 'object') {
+ c = JSON.parse(JSON.stringify(c));
+ remap(c.audio, 'autoGainControl', 'mozAutoGainControl');
+ remap(c.audio, 'noiseSuppression', 'mozNoiseSuppression');
+ }
+ return nativeGetUserMedia(c);
+ };
+
+ if (MediaStreamTrack && MediaStreamTrack.prototype.getSettings) {
+ const nativeGetSettings = MediaStreamTrack.prototype.getSettings;
+ MediaStreamTrack.prototype.getSettings = function() {
+ const obj = nativeGetSettings.apply(this, arguments);
+ remap(obj, 'mozAutoGainControl', 'autoGainControl');
+ remap(obj, 'mozNoiseSuppression', 'noiseSuppression');
+ return obj;
+ };
+ }
+
+ if (MediaStreamTrack && MediaStreamTrack.prototype.applyConstraints) {
+ const nativeApplyConstraints =
+ MediaStreamTrack.prototype.applyConstraints;
+ MediaStreamTrack.prototype.applyConstraints = function(c) {
+ if (this.kind === 'audio' && typeof c === 'object') {
+ c = JSON.parse(JSON.stringify(c));
+ remap(c, 'autoGainControl', 'mozAutoGainControl');
+ remap(c, 'noiseSuppression', 'mozNoiseSuppression');
+ }
+ return nativeApplyConstraints.apply(this, [c]);
+ };
+ }
+ }
+ }
+
+ /*
+ * Copyright (c) 2018 The adapter.js 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.
+ */
+
+ function shimGetDisplayMedia(window, preferredMediaSource) {
+ if (window.navigator.mediaDevices &&
+ 'getDisplayMedia' in window.navigator.mediaDevices) {
+ return;
+ }
+ if (!(window.navigator.mediaDevices)) {
+ return;
+ }
+ window.navigator.mediaDevices.getDisplayMedia =
+ function getDisplayMedia(constraints) {
+ if (!(constraints && constraints.video)) {
+ const err = new DOMException('getDisplayMedia without video ' +
+ 'constraints is undefined');
+ err.name = 'NotFoundError';
+ // from https://heycam.github.io/webidl/#idl-DOMException-error-names
+ err.code = 8;
+ return Promise.reject(err);
+ }
+ if (constraints.video === true) {
+ constraints.video = {mediaSource: preferredMediaSource};
+ } else {
+ constraints.video.mediaSource = preferredMediaSource;
+ }
+ return window.navigator.mediaDevices.getUserMedia(constraints);
+ };
+ }
+
+ /*
+ * 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.
+ */
+
+ function shimOnTrack(window) {
+ if (typeof window === 'object' && window.RTCTrackEvent &&
+ ('receiver' in window.RTCTrackEvent.prototype) &&
+ !('transceiver' in window.RTCTrackEvent.prototype)) {
+ Object.defineProperty(window.RTCTrackEvent.prototype, 'transceiver', {
+ get() {
+ return {receiver: this.receiver};
+ }
+ });
+ }
+ }
+
+ function shimPeerConnection(window, browserDetails) {
+ if (typeof window !== 'object' ||
+ !(window.RTCPeerConnection || window.mozRTCPeerConnection)) {
+ return; // probably media.peerconnection.enabled=false in about:config
+ }
+ if (!window.RTCPeerConnection && window.mozRTCPeerConnection) {
+ // very basic support for old versions.
+ window.RTCPeerConnection = window.mozRTCPeerConnection;
+ }
+
+ if (browserDetails.version < 53) {
+ // shim away need for obsolete RTCIceCandidate/RTCSessionDescription.
+ ['setLocalDescription', 'setRemoteDescription', 'addIceCandidate']
+ .forEach(function(method) {
+ const nativeMethod = window.RTCPeerConnection.prototype[method];
+ const methodObj = {[method]() {
+ arguments[0] = new ((method === 'addIceCandidate') ?
+ window.RTCIceCandidate :
+ window.RTCSessionDescription)(arguments[0]);
+ return nativeMethod.apply(this, arguments);
+ }};
+ window.RTCPeerConnection.prototype[method] = methodObj[method];
+ });
+ }
+
+ const modernStatsTypes = {
+ inboundrtp: 'inbound-rtp',
+ outboundrtp: 'outbound-rtp',
+ candidatepair: 'candidate-pair',
+ localcandidate: 'local-candidate',
+ remotecandidate: 'remote-candidate'
+ };
+
+ const nativeGetStats = window.RTCPeerConnection.prototype.getStats;
+ window.RTCPeerConnection.prototype.getStats = function getStats() {
+ const [selector, onSucc, onErr] = arguments;
+ return nativeGetStats.apply(this, [selector || null])
+ .then(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(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((stat, i) => {
+ stats.set(i, Object.assign({}, stat, {
+ type: modernStatsTypes[stat.type] || stat.type
+ }));
+ });
+ }
+ }
+ return stats;
+ })
+ .then(onSucc, onErr);
+ };
+ }
+
+ function shimSenderGetStats(window) {
+ if (!(typeof window === 'object' && window.RTCPeerConnection &&
+ window.RTCRtpSender)) {
+ return;
+ }
+ if (window.RTCRtpSender && 'getStats' in window.RTCRtpSender.prototype) {
+ return;
+ }
+ const origGetSenders = window.RTCPeerConnection.prototype.getSenders;
+ if (origGetSenders) {
+ window.RTCPeerConnection.prototype.getSenders = function getSenders() {
+ const senders = origGetSenders.apply(this, []);
+ senders.forEach(sender => sender._pc = this);
+ return senders;
+ };
+ }
+
+ const origAddTrack = window.RTCPeerConnection.prototype.addTrack;
+ if (origAddTrack) {
+ window.RTCPeerConnection.prototype.addTrack = function addTrack() {
+ const sender = origAddTrack.apply(this, arguments);
+ sender._pc = this;
+ return sender;
+ };
+ }
+ window.RTCRtpSender.prototype.getStats = function getStats() {
+ return this.track ? this._pc.getStats(this.track) :
+ Promise.resolve(new Map());
+ };
+ }
+
+ function shimReceiverGetStats(window) {
+ if (!(typeof window === 'object' && window.RTCPeerConnection &&
+ window.RTCRtpSender)) {
+ return;
+ }
+ if (window.RTCRtpSender && 'getStats' in window.RTCRtpReceiver.prototype) {
+ return;
+ }
+ const origGetReceivers = window.RTCPeerConnection.prototype.getReceivers;
+ if (origGetReceivers) {
+ window.RTCPeerConnection.prototype.getReceivers = function getReceivers() {
+ const receivers = origGetReceivers.apply(this, []);
+ receivers.forEach(receiver => receiver._pc = this);
+ return receivers;
+ };
+ }
+ wrapPeerConnectionEvent(window, 'track', e => {
+ e.receiver._pc = e.srcElement;
+ return e;
+ });
+ window.RTCRtpReceiver.prototype.getStats = function getStats() {
+ return this._pc.getStats(this.track);
+ };
+ }
+
+ function shimRemoveStream(window) {
+ if (!window.RTCPeerConnection ||
+ 'removeStream' in window.RTCPeerConnection.prototype) {
+ return;
+ }
+ window.RTCPeerConnection.prototype.removeStream =
+ function removeStream(stream) {
+ deprecated('removeStream', 'removeTrack');
+ this.getSenders().forEach(sender => {
+ if (sender.track && stream.getTracks().includes(sender.track)) {
+ this.removeTrack(sender);
+ }
+ });
+ };
+ }
+
+ function shimRTCDataChannel(window) {
+ // rename DataChannel to RTCDataChannel (native fix in FF60):
+ // https://bugzilla.mozilla.org/show_bug.cgi?id=1173851
+ if (window.DataChannel && !window.RTCDataChannel) {
+ window.RTCDataChannel = window.DataChannel;
+ }
+ }
+
+ function shimAddTransceiver(window) {
+ // https://github.com/webrtcHacks/adapter/issues/998#issuecomment-516921647
+ // Firefox ignores the init sendEncodings options passed to addTransceiver
+ // https://bugzilla.mozilla.org/show_bug.cgi?id=1396918
+ if (!(typeof window === 'object' && window.RTCPeerConnection)) {
+ return;
+ }
+ const origAddTransceiver = window.RTCPeerConnection.prototype.addTransceiver;
+ if (origAddTransceiver) {
+ window.RTCPeerConnection.prototype.addTransceiver =
+ function addTransceiver() {
+ this.setParametersPromises = [];
+ const initParameters = arguments[1];
+ const shouldPerformCheck = initParameters &&
+ 'sendEncodings' in initParameters;
+ if (shouldPerformCheck) {
+ // If sendEncodings params are provided, validate grammar
+ initParameters.sendEncodings.forEach((encodingParam) => {
+ if ('rid' in encodingParam) {
+ const ridRegex = /^[a-z0-9]{0,16}$/i;
+ if (!ridRegex.test(encodingParam.rid)) {
+ throw new TypeError('Invalid RID value provided.');
+ }
+ }
+ if ('scaleResolutionDownBy' in encodingParam) {
+ if (!(parseFloat(encodingParam.scaleResolutionDownBy) >= 1.0)) {
+ throw new RangeError('scale_resolution_down_by must be >= 1.0');
+ }
+ }
+ if ('maxFramerate' in encodingParam) {
+ if (!(parseFloat(encodingParam.maxFramerate) >= 0)) {
+ throw new RangeError('max_framerate must be >= 0.0');
+ }
+ }
+ });
+ }
+ const transceiver = origAddTransceiver.apply(this, arguments);
+ if (shouldPerformCheck) {
+ // Check if the init options were applied. If not we do this in an
+ // asynchronous way and save the promise reference in a global object.
+ // This is an ugly hack, but at the same time is way more robust than
+ // checking the sender parameters before and after the createOffer
+ // Also note that after the createoffer we are not 100% sure that
+ // the params were asynchronously applied so we might miss the
+ // opportunity to recreate offer.
+ const {sender} = transceiver;
+ const params = sender.getParameters();
+ if (!('encodings' in params) ||
+ // Avoid being fooled by patched getParameters() below.
+ (params.encodings.length === 1 &&
+ Object.keys(params.encodings[0]).length === 0)) {
+ params.encodings = initParameters.sendEncodings;
+ sender.sendEncodings = initParameters.sendEncodings;
+ this.setParametersPromises.push(sender.setParameters(params)
+ .then(() => {
+ delete sender.sendEncodings;
+ }).catch(() => {
+ delete sender.sendEncodings;
+ })
+ );
+ }
+ }
+ return transceiver;
+ };
+ }
+ }
+
+ function shimGetParameters(window) {
+ if (!(typeof window === 'object' && window.RTCRtpSender)) {
+ return;
+ }
+ const origGetParameters = window.RTCRtpSender.prototype.getParameters;
+ if (origGetParameters) {
+ window.RTCRtpSender.prototype.getParameters =
+ function getParameters() {
+ const params = origGetParameters.apply(this, arguments);
+ if (!('encodings' in params)) {
+ params.encodings = [].concat(this.sendEncodings || [{}]);
+ }
+ return params;
+ };
+ }
+ }
+
+ function shimCreateOffer(window) {
+ // https://github.com/webrtcHacks/adapter/issues/998#issuecomment-516921647
+ // Firefox ignores the init sendEncodings options passed to addTransceiver
+ // https://bugzilla.mozilla.org/show_bug.cgi?id=1396918
+ if (!(typeof window === 'object' && window.RTCPeerConnection)) {
+ return;
+ }
+ const origCreateOffer = window.RTCPeerConnection.prototype.createOffer;
+ window.RTCPeerConnection.prototype.createOffer = function createOffer() {
+ if (this.setParametersPromises && this.setParametersPromises.length) {
+ return Promise.all(this.setParametersPromises)
+ .then(() => {
+ return origCreateOffer.apply(this, arguments);
+ })
+ .finally(() => {
+ this.setParametersPromises = [];
+ });
+ }
+ return origCreateOffer.apply(this, arguments);
+ };
+ }
+
+ function shimCreateAnswer(window) {
+ // https://github.com/webrtcHacks/adapter/issues/998#issuecomment-516921647
+ // Firefox ignores the init sendEncodings options passed to addTransceiver
+ // https://bugzilla.mozilla.org/show_bug.cgi?id=1396918
+ if (!(typeof window === 'object' && window.RTCPeerConnection)) {
+ return;
+ }
+ const origCreateAnswer = window.RTCPeerConnection.prototype.createAnswer;
+ window.RTCPeerConnection.prototype.createAnswer = function createAnswer() {
+ if (this.setParametersPromises && this.setParametersPromises.length) {
+ return Promise.all(this.setParametersPromises)
+ .then(() => {
+ return origCreateAnswer.apply(this, arguments);
+ })
+ .finally(() => {
+ this.setParametersPromises = [];
+ });
+ }
+ return origCreateAnswer.apply(this, arguments);
+ };
+ }
+
+ var firefoxShim = /*#__PURE__*/Object.freeze({
+ __proto__: null,
+ shimOnTrack: shimOnTrack,
+ shimPeerConnection: shimPeerConnection,
+ shimSenderGetStats: shimSenderGetStats,
+ shimReceiverGetStats: shimReceiverGetStats,
+ shimRemoveStream: shimRemoveStream,
+ shimRTCDataChannel: shimRTCDataChannel,
+ shimAddTransceiver: shimAddTransceiver,
+ shimGetParameters: shimGetParameters,
+ shimCreateOffer: shimCreateOffer,
+ shimCreateAnswer: shimCreateAnswer,
+ shimGetUserMedia: shimGetUserMedia$1,
+ shimGetDisplayMedia: shimGetDisplayMedia
+ });
+
+ /*
+ * 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.
+ */
+
+ function shimLocalStreamsAPI(window) {
+ if (typeof window !== 'object' || !window.RTCPeerConnection) {
+ return;
+ }
+ if (!('getLocalStreams' in window.RTCPeerConnection.prototype)) {
+ window.RTCPeerConnection.prototype.getLocalStreams =
+ function getLocalStreams() {
+ if (!this._localStreams) {
+ this._localStreams = [];
+ }
+ return this._localStreams;
+ };
+ }
+ if (!('addStream' in window.RTCPeerConnection.prototype)) {
+ const _addTrack = window.RTCPeerConnection.prototype.addTrack;
+ window.RTCPeerConnection.prototype.addStream = function addStream(stream) {
+ if (!this._localStreams) {
+ this._localStreams = [];
+ }
+ if (!this._localStreams.includes(stream)) {
+ this._localStreams.push(stream);
+ }
+ // Try to emulate Chrome's behaviour of adding in audio-video order.
+ // Safari orders by track id.
+ stream.getAudioTracks().forEach(track => _addTrack.call(this, track,
+ stream));
+ stream.getVideoTracks().forEach(track => _addTrack.call(this, track,
+ stream));
+ };
+
+ window.RTCPeerConnection.prototype.addTrack =
+ function addTrack(track, ...streams) {
+ if (streams) {
+ streams.forEach((stream) => {
+ if (!this._localStreams) {
+ this._localStreams = [stream];
+ } else if (!this._localStreams.includes(stream)) {
+ this._localStreams.push(stream);
+ }
+ });
+ }
+ return _addTrack.apply(this, arguments);
+ };
+ }
+ if (!('removeStream' in window.RTCPeerConnection.prototype)) {
+ window.RTCPeerConnection.prototype.removeStream =
+ function removeStream(stream) {
+ if (!this._localStreams) {
+ this._localStreams = [];
+ }
+ const index = this._localStreams.indexOf(stream);
+ if (index === -1) {
+ return;
+ }
+ this._localStreams.splice(index, 1);
+ const tracks = stream.getTracks();
+ this.getSenders().forEach(sender => {
+ if (tracks.includes(sender.track)) {
+ this.removeTrack(sender);
+ }
+ });
+ };
+ }
+ }
+
+ function shimRemoteStreamsAPI(window) {
+ if (typeof window !== 'object' || !window.RTCPeerConnection) {
+ return;
+ }
+ if (!('getRemoteStreams' in window.RTCPeerConnection.prototype)) {
+ window.RTCPeerConnection.prototype.getRemoteStreams =
+ function getRemoteStreams() {
+ return this._remoteStreams ? this._remoteStreams : [];
+ };
+ }
+ if (!('onaddstream' in window.RTCPeerConnection.prototype)) {
+ Object.defineProperty(window.RTCPeerConnection.prototype, 'onaddstream', {
+ get() {
+ return this._onaddstream;
+ },
+ set(f) {
+ if (this._onaddstream) {
+ this.removeEventListener('addstream', this._onaddstream);
+ this.removeEventListener('track', this._onaddstreampoly);
+ }
+ this.addEventListener('addstream', this._onaddstream = f);
+ this.addEventListener('track', this._onaddstreampoly = (e) => {
+ e.streams.forEach(stream => {
+ if (!this._remoteStreams) {
+ this._remoteStreams = [];
+ }
+ if (this._remoteStreams.includes(stream)) {
+ return;
+ }
+ this._remoteStreams.push(stream);
+ const event = new Event('addstream');
+ event.stream = stream;
+ this.dispatchEvent(event);
+ });
+ });
+ }
+ });
+ const origSetRemoteDescription =
+ window.RTCPeerConnection.prototype.setRemoteDescription;
+ window.RTCPeerConnection.prototype.setRemoteDescription =
+ function setRemoteDescription() {
+ const pc = this;
+ if (!this._onaddstreampoly) {
+ this.addEventListener('track', this._onaddstreampoly = function(e) {
+ e.streams.forEach(stream => {
+ if (!pc._remoteStreams) {
+ pc._remoteStreams = [];
+ }
+ if (pc._remoteStreams.indexOf(stream) >= 0) {
+ return;
+ }
+ pc._remoteStreams.push(stream);
+ const event = new Event('addstream');
+ event.stream = stream;
+ pc.dispatchEvent(event);
+ });
+ });
+ }
+ return origSetRemoteDescription.apply(pc, arguments);
+ };
+ }
+ }
+
+ function shimCallbacksAPI(window) {
+ if (typeof window !== 'object' || !window.RTCPeerConnection) {
+ return;
+ }
+ const prototype = window.RTCPeerConnection.prototype;
+ const origCreateOffer = prototype.createOffer;
+ const origCreateAnswer = prototype.createAnswer;
+ const setLocalDescription = prototype.setLocalDescription;
+ const setRemoteDescription = prototype.setRemoteDescription;
+ const addIceCandidate = prototype.addIceCandidate;
+
+ prototype.createOffer =
+ function createOffer(successCallback, failureCallback) {
+ const options = (arguments.length >= 2) ? arguments[2] : arguments[0];
+ const promise = origCreateOffer.apply(this, [options]);
+ if (!failureCallback) {
+ return promise;
+ }
+ promise.then(successCallback, failureCallback);
+ return Promise.resolve();
+ };
+
+ prototype.createAnswer =
+ function createAnswer(successCallback, failureCallback) {
+ const options = (arguments.length >= 2) ? arguments[2] : arguments[0];
+ const promise = origCreateAnswer.apply(this, [options]);
+ if (!failureCallback) {
+ return promise;
+ }
+ promise.then(successCallback, failureCallback);
+ return Promise.resolve();
+ };
+
+ let withCallback = function(description, successCallback, failureCallback) {
+ const promise = setLocalDescription.apply(this, [description]);
+ if (!failureCallback) {
+ return promise;
+ }
+ promise.then(successCallback, failureCallback);
+ return Promise.resolve();
+ };
+ prototype.setLocalDescription = withCallback;
+
+ withCallback = function(description, successCallback, failureCallback) {
+ const promise = setRemoteDescription.apply(this, [description]);
+ if (!failureCallback) {
+ return promise;
+ }
+ promise.then(successCallback, failureCallback);
+ return Promise.resolve();
+ };
+ prototype.setRemoteDescription = withCallback;
+
+ withCallback = function(candidate, successCallback, failureCallback) {
+ const promise = addIceCandidate.apply(this, [candidate]);
+ if (!failureCallback) {
+ return promise;
+ }
+ promise.then(successCallback, failureCallback);
+ return Promise.resolve();
+ };
+ prototype.addIceCandidate = withCallback;
+ }
+
+ function shimGetUserMedia(window) {
+ const navigator = window && window.navigator;
+
+ if (navigator.mediaDevices && navigator.mediaDevices.getUserMedia) {
+ // shim not needed in Safari 12.1
+ const mediaDevices = navigator.mediaDevices;
+ const _getUserMedia = mediaDevices.getUserMedia.bind(mediaDevices);
+ navigator.mediaDevices.getUserMedia = (constraints) => {
+ return _getUserMedia(shimConstraints(constraints));
+ };
+ }
+
+ if (!navigator.getUserMedia && navigator.mediaDevices &&
+ navigator.mediaDevices.getUserMedia) {
+ navigator.getUserMedia = function getUserMedia(constraints, cb, errcb) {
+ navigator.mediaDevices.getUserMedia(constraints)
+ .then(cb, errcb);
+ }.bind(navigator);
+ }
+ }
+
+ function shimConstraints(constraints) {
+ if (constraints && constraints.video !== undefined) {
+ return Object.assign({},
+ constraints,
+ {video: compactObject(constraints.video)}
+ );
+ }
+
+ return constraints;
+ }
+
+ function shimRTCIceServerUrls(window) {
+ if (!window.RTCPeerConnection) {
+ return;
+ }
+ // migrate from non-spec RTCIceServer.url to RTCIceServer.urls
+ const OrigPeerConnection = window.RTCPeerConnection;
+ window.RTCPeerConnection =
+ function RTCPeerConnection(pcConfig, pcConstraints) {
+ if (pcConfig && pcConfig.iceServers) {
+ const newIceServers = [];
+ for (let i = 0; i < pcConfig.iceServers.length; i++) {
+ let server = pcConfig.iceServers[i];
+ if (!server.hasOwnProperty('urls') &&
+ server.hasOwnProperty('url')) {
+ deprecated('RTCIceServer.url', 'RTCIceServer.urls');
+ server = JSON.parse(JSON.stringify(server));
+ server.urls = server.url;
+ delete server.url;
+ newIceServers.push(server);
+ } else {
+ newIceServers.push(pcConfig.iceServers[i]);
+ }
+ }
+ pcConfig.iceServers = newIceServers;
+ }
+ return new OrigPeerConnection(pcConfig, pcConstraints);
+ };
+ window.RTCPeerConnection.prototype = OrigPeerConnection.prototype;
+ // wrap static methods. Currently just generateCertificate.
+ if ('generateCertificate' in OrigPeerConnection) {
+ Object.defineProperty(window.RTCPeerConnection, 'generateCertificate', {
+ get() {
+ return OrigPeerConnection.generateCertificate;
+ }
+ });
+ }
+ }
+
+ function shimTrackEventTransceiver(window) {
+ // Add event.transceiver member over deprecated event.receiver
+ if (typeof window === 'object' && window.RTCTrackEvent &&
+ 'receiver' in window.RTCTrackEvent.prototype &&
+ !('transceiver' in window.RTCTrackEvent.prototype)) {
+ Object.defineProperty(window.RTCTrackEvent.prototype, 'transceiver', {
+ get() {
+ return {receiver: this.receiver};
+ }
+ });
+ }
+ }
+
+ function shimCreateOfferLegacy(window) {
+ const origCreateOffer = window.RTCPeerConnection.prototype.createOffer;
+ window.RTCPeerConnection.prototype.createOffer =
+ function createOffer(offerOptions) {
+ if (offerOptions) {
+ if (typeof offerOptions.offerToReceiveAudio !== 'undefined') {
+ // support bit values
+ offerOptions.offerToReceiveAudio =
+ !!offerOptions.offerToReceiveAudio;
+ }
+ const audioTransceiver = this.getTransceivers().find(transceiver =>
+ transceiver.receiver.track.kind === 'audio');
+ if (offerOptions.offerToReceiveAudio === false && audioTransceiver) {
+ if (audioTransceiver.direction === 'sendrecv') {
+ if (audioTransceiver.setDirection) {
+ audioTransceiver.setDirection('sendonly');
+ } else {
+ audioTransceiver.direction = 'sendonly';
+ }
+ } else if (audioTransceiver.direction === 'recvonly') {
+ if (audioTransceiver.setDirection) {
+ audioTransceiver.setDirection('inactive');
+ } else {
+ audioTransceiver.direction = 'inactive';
+ }
+ }
+ } else if (offerOptions.offerToReceiveAudio === true &&
+ !audioTransceiver) {
+ this.addTransceiver('audio');
+ }
+
+ if (typeof offerOptions.offerToReceiveVideo !== 'undefined') {
+ // support bit values
+ offerOptions.offerToReceiveVideo =
+ !!offerOptions.offerToReceiveVideo;
+ }
+ const videoTransceiver = this.getTransceivers().find(transceiver =>
+ transceiver.receiver.track.kind === 'video');
+ if (offerOptions.offerToReceiveVideo === false && videoTransceiver) {
+ if (videoTransceiver.direction === 'sendrecv') {
+ if (videoTransceiver.setDirection) {
+ videoTransceiver.setDirection('sendonly');
+ } else {
+ videoTransceiver.direction = 'sendonly';
+ }
+ } else if (videoTransceiver.direction === 'recvonly') {
+ if (videoTransceiver.setDirection) {
+ videoTransceiver.setDirection('inactive');
+ } else {
+ videoTransceiver.direction = 'inactive';
+ }
+ }
+ } else if (offerOptions.offerToReceiveVideo === true &&
+ !videoTransceiver) {
+ this.addTransceiver('video');
+ }
+ }
+ return origCreateOffer.apply(this, arguments);
+ };
+ }
+
+ function shimAudioContext(window) {
+ if (typeof window !== 'object' || window.AudioContext) {
+ return;
+ }
+ window.AudioContext = window.webkitAudioContext;
+ }
+
+ var safariShim = /*#__PURE__*/Object.freeze({
+ __proto__: null,
+ shimLocalStreamsAPI: shimLocalStreamsAPI,
+ shimRemoteStreamsAPI: shimRemoteStreamsAPI,
+ shimCallbacksAPI: shimCallbacksAPI,
+ shimGetUserMedia: shimGetUserMedia,
+ shimConstraints: shimConstraints,
+ shimRTCIceServerUrls: shimRTCIceServerUrls,
+ shimTrackEventTransceiver: shimTrackEventTransceiver,
+ shimCreateOfferLegacy: shimCreateOfferLegacy,
+ shimAudioContext: shimAudioContext
+ });
+
+ /*
+ * Copyright (c) 2017 The WebRTC project authors. All Rights Reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree.
+ */
+
+ function shimRTCIceCandidate(window) {
+ // foundation is arbitrarily chosen as an indicator for full support for
+ // https://w3c.github.io/webrtc-pc/#rtcicecandidate-interface
+ if (!window.RTCIceCandidate || (window.RTCIceCandidate && 'foundation' in
+ window.RTCIceCandidate.prototype)) {
+ return;
+ }
+
+ const NativeRTCIceCandidate = window.RTCIceCandidate;
+ window.RTCIceCandidate = function RTCIceCandidate(args) {
+ // Remove the a= which shouldn't be part of the candidate string.
+ if (typeof args === 'object' && args.candidate &&
+ args.candidate.indexOf('a=') === 0) {
+ args = JSON.parse(JSON.stringify(args));
+ args.candidate = args.candidate.substr(2);
+ }
+
+ if (args.candidate && args.candidate.length) {
+ // Augment the native candidate with the parsed fields.
+ const nativeCandidate = new NativeRTCIceCandidate(args);
+ const parsedCandidate = sdp.parseCandidate(args.candidate);
+ const augmentedCandidate = Object.assign(nativeCandidate,
+ parsedCandidate);
+
+ // Add a serializer that does not serialize the extra attributes.
+ augmentedCandidate.toJSON = function toJSON() {
+ return {
+ candidate: augmentedCandidate.candidate,
+ sdpMid: augmentedCandidate.sdpMid,
+ sdpMLineIndex: augmentedCandidate.sdpMLineIndex,
+ usernameFragment: augmentedCandidate.usernameFragment,
+ };
+ };
+ return augmentedCandidate;
+ }
+ return new NativeRTCIceCandidate(args);
+ };
+ window.RTCIceCandidate.prototype = NativeRTCIceCandidate.prototype;
+
+ // Hook up the augmented candidate in onicecandidate and
+ // addEventListener('icecandidate', ...)
+ wrapPeerConnectionEvent(window, 'icecandidate', e => {
+ if (e.candidate) {
+ Object.defineProperty(e, 'candidate', {
+ value: new window.RTCIceCandidate(e.candidate),
+ writable: 'false'
+ });
+ }
+ return e;
+ });
+ }
+
+ function shimMaxMessageSize(window, browserDetails) {
+ if (!window.RTCPeerConnection) {
+ return;
+ }
+
+ if (!('sctp' in window.RTCPeerConnection.prototype)) {
+ Object.defineProperty(window.RTCPeerConnection.prototype, 'sctp', {
+ get() {
+ return typeof this._sctp === 'undefined' ? null : this._sctp;
+ }
+ });
+ }
+
+ const sctpInDescription = function(description) {
+ if (!description || !description.sdp) {
+ return false;
+ }
+ const sections = sdp.splitSections(description.sdp);
+ sections.shift();
+ return sections.some(mediaSection => {
+ const mLine = sdp.parseMLine(mediaSection);
+ return mLine && mLine.kind === 'application'
+ && mLine.protocol.indexOf('SCTP') !== -1;
+ });
+ };
+
+ const getRemoteFirefoxVersion = function(description) {
+ // TODO: Is there a better solution for detecting Firefox?
+ const match = description.sdp.match(/mozilla...THIS_IS_SDPARTA-(\d+)/);
+ if (match === null || match.length < 2) {
+ return -1;
+ }
+ const version = parseInt(match[1], 10);
+ // Test for NaN (yes, this is ugly)
+ return version !== version ? -1 : version;
+ };
+
+ const getCanSendMaxMessageSize = function(remoteIsFirefox) {
+ // Every implementation we know can send at least 64 KiB.
+ // Note: Although Chrome is technically able to send up to 256 KiB, the
+ // data does not reach the other peer reliably.
+ // See: https://bugs.chromium.org/p/webrtc/issues/detail?id=8419
+ let canSendMaxMessageSize = 65536;
+ if (browserDetails.browser === 'firefox') {
+ if (browserDetails.version < 57) {
+ if (remoteIsFirefox === -1) {
+ // FF < 57 will send in 16 KiB chunks using the deprecated PPID
+ // fragmentation.
+ canSendMaxMessageSize = 16384;
+ } else {
+ // However, other FF (and RAWRTC) can reassemble PPID-fragmented
+ // messages. Thus, supporting ~2 GiB when sending.
+ canSendMaxMessageSize = 2147483637;
+ }
+ } else if (browserDetails.version < 60) {
+ // Currently, all FF >= 57 will reset the remote maximum message size
+ // to the default value when a data channel is created at a later
+ // stage. :(
+ // See: https://bugzilla.mozilla.org/show_bug.cgi?id=1426831
+ canSendMaxMessageSize =
+ browserDetails.version === 57 ? 65535 : 65536;
+ } else {
+ // FF >= 60 supports sending ~2 GiB
+ canSendMaxMessageSize = 2147483637;
+ }
+ }
+ return canSendMaxMessageSize;
+ };
+
+ const getMaxMessageSize = function(description, remoteIsFirefox) {
+ // Note: 65536 bytes is the default value from the SDP spec. Also,
+ // every implementation we know supports receiving 65536 bytes.
+ let maxMessageSize = 65536;
+
+ // FF 57 has a slightly incorrect default remote max message size, so
+ // we need to adjust it here to avoid a failure when sending.
+ // See: https://bugzilla.mozilla.org/show_bug.cgi?id=1425697
+ if (browserDetails.browser === 'firefox'
+ && browserDetails.version === 57) {
+ maxMessageSize = 65535;
+ }
+
+ const match = sdp.matchPrefix(description.sdp,
+ 'a=max-message-size:');
+ if (match.length > 0) {
+ maxMessageSize = parseInt(match[0].substr(19), 10);
+ } else if (browserDetails.browser === 'firefox' &&
+ remoteIsFirefox !== -1) {
+ // If the maximum message size is not present in the remote SDP and
+ // both local and remote are Firefox, the remote peer can receive
+ // ~2 GiB.
+ maxMessageSize = 2147483637;
+ }
+ return maxMessageSize;
+ };
+
+ const origSetRemoteDescription =
+ window.RTCPeerConnection.prototype.setRemoteDescription;
+ window.RTCPeerConnection.prototype.setRemoteDescription =
+ function setRemoteDescription() {
+ this._sctp = null;
+ // Chrome decided to not expose .sctp in plan-b mode.
+ // As usual, adapter.js has to do an 'ugly worakaround'
+ // to cover up the mess.
+ if (browserDetails.browser === 'chrome' && browserDetails.version >= 76) {
+ const {sdpSemantics} = this.getConfiguration();
+ if (sdpSemantics === 'plan-b') {
+ Object.defineProperty(this, 'sctp', {
+ get() {
+ return typeof this._sctp === 'undefined' ? null : this._sctp;
+ },
+ enumerable: true,
+ configurable: true,
+ });
+ }
+ }
+
+ if (sctpInDescription(arguments[0])) {
+ // Check if the remote is FF.
+ const isFirefox = getRemoteFirefoxVersion(arguments[0]);
+
+ // Get the maximum message size the local peer is capable of sending
+ const canSendMMS = getCanSendMaxMessageSize(isFirefox);
+
+ // Get the maximum message size of the remote peer.
+ const remoteMMS = getMaxMessageSize(arguments[0], isFirefox);
+
+ // Determine final maximum message size
+ let maxMessageSize;
+ if (canSendMMS === 0 && remoteMMS === 0) {
+ maxMessageSize = Number.POSITIVE_INFINITY;
+ } else if (canSendMMS === 0 || remoteMMS === 0) {
+ maxMessageSize = Math.max(canSendMMS, remoteMMS);
+ } else {
+ maxMessageSize = Math.min(canSendMMS, remoteMMS);
+ }
+
+ // Create a dummy RTCSctpTransport object and the 'maxMessageSize'
+ // attribute.
+ const sctp = {};
+ Object.defineProperty(sctp, 'maxMessageSize', {
+ get() {
+ return maxMessageSize;
+ }
+ });
+ this._sctp = sctp;
+ }
+
+ return origSetRemoteDescription.apply(this, arguments);
+ };
+ }
+
+ function shimSendThrowTypeError(window) {
+ if (!(window.RTCPeerConnection &&
+ 'createDataChannel' in window.RTCPeerConnection.prototype)) {
+ return;
+ }
+
+ // Note: Although Firefox >= 57 has a native implementation, the maximum
+ // message size can be reset for all data channels at a later stage.
+ // See: https://bugzilla.mozilla.org/show_bug.cgi?id=1426831
+
+ function wrapDcSend(dc, pc) {
+ const origDataChannelSend = dc.send;
+ dc.send = function send() {
+ const data = arguments[0];
+ const length = data.length || data.size || data.byteLength;
+ if (dc.readyState === 'open' &&
+ pc.sctp && length > pc.sctp.maxMessageSize) {
+ throw new TypeError('Message too large (can send a maximum of ' +
+ pc.sctp.maxMessageSize + ' bytes)');
+ }
+ return origDataChannelSend.apply(dc, arguments);
+ };
+ }
+ const origCreateDataChannel =
+ window.RTCPeerConnection.prototype.createDataChannel;
+ window.RTCPeerConnection.prototype.createDataChannel =
+ function createDataChannel() {
+ const dataChannel = origCreateDataChannel.apply(this, arguments);
+ wrapDcSend(dataChannel, this);
+ return dataChannel;
+ };
+ wrapPeerConnectionEvent(window, 'datachannel', e => {
+ wrapDcSend(e.channel, e.target);
+ return e;
+ });
+ }
+
+
+ /* shims RTCConnectionState by pretending it is the same as iceConnectionState.
+ * See https://bugs.chromium.org/p/webrtc/issues/detail?id=6145#c12
+ * for why this is a valid hack in Chrome. In Firefox it is slightly incorrect
+ * since DTLS failures would be hidden. See
+ * https://bugzilla.mozilla.org/show_bug.cgi?id=1265827
+ * for the Firefox tracking bug.
+ */
+ function shimConnectionState(window) {
+ if (!window.RTCPeerConnection ||
+ 'connectionState' in window.RTCPeerConnection.prototype) {
+ return;
+ }
+ const proto = window.RTCPeerConnection.prototype;
+ Object.defineProperty(proto, 'connectionState', {
+ get() {
+ return {
+ completed: 'connected',
+ checking: 'connecting'
+ }[this.iceConnectionState] || this.iceConnectionState;
+ },
+ enumerable: true,
+ configurable: true
+ });
+ Object.defineProperty(proto, 'onconnectionstatechange', {
+ get() {
+ return this._onconnectionstatechange || null;
+ },
+ set(cb) {
+ if (this._onconnectionstatechange) {
+ this.removeEventListener('connectionstatechange',
+ this._onconnectionstatechange);
+ delete this._onconnectionstatechange;
+ }
+ if (cb) {
+ this.addEventListener('connectionstatechange',
+ this._onconnectionstatechange = cb);
+ }
+ },
+ enumerable: true,
+ configurable: true
+ });
+
+ ['setLocalDescription', 'setRemoteDescription'].forEach((method) => {
+ const origMethod = proto[method];
+ proto[method] = function() {
+ if (!this._connectionstatechangepoly) {
+ this._connectionstatechangepoly = e => {
+ const pc = e.target;
+ if (pc._lastConnectionState !== pc.connectionState) {
+ pc._lastConnectionState = pc.connectionState;
+ const newEvent = new Event('connectionstatechange', e);
+ pc.dispatchEvent(newEvent);
+ }
+ return e;
+ };
+ this.addEventListener('iceconnectionstatechange',
+ this._connectionstatechangepoly);
+ }
+ return origMethod.apply(this, arguments);
+ };
+ });
+ }
+
+ function removeExtmapAllowMixed(window, browserDetails) {
+ /* remove a=extmap-allow-mixed for webrtc.org < M71 */
+ if (!window.RTCPeerConnection) {
+ return;
+ }
+ if (browserDetails.browser === 'chrome' && browserDetails.version >= 71) {
+ return;
+ }
+ if (browserDetails.browser === 'safari' && browserDetails.version >= 605) {
+ return;
+ }
+ const nativeSRD = window.RTCPeerConnection.prototype.setRemoteDescription;
+ window.RTCPeerConnection.prototype.setRemoteDescription =
+ function setRemoteDescription(desc) {
+ if (desc && desc.sdp && desc.sdp.indexOf('\na=extmap-allow-mixed') !== -1) {
+ const sdp = desc.sdp.split('\n').filter((line) => {
+ return line.trim() !== 'a=extmap-allow-mixed';
+ }).join('\n');
+ // Safari enforces read-only-ness of RTCSessionDescription fields.
+ if (window.RTCSessionDescription &&
+ desc instanceof window.RTCSessionDescription) {
+ arguments[0] = new window.RTCSessionDescription({
+ type: desc.type,
+ sdp,
+ });
+ } else {
+ desc.sdp = sdp;
+ }
+ }
+ return nativeSRD.apply(this, arguments);
+ };
+ }
+
+ function shimAddIceCandidateNullOrEmpty(window, browserDetails) {
+ // Support for addIceCandidate(null or undefined)
+ // as well as addIceCandidate({candidate: "", ...})
+ // https://bugs.chromium.org/p/chromium/issues/detail?id=978582
+ // Note: must be called before other polyfills which change the signature.
+ if (!(window.RTCPeerConnection && window.RTCPeerConnection.prototype)) {
+ return;
+ }
+ const nativeAddIceCandidate =
+ window.RTCPeerConnection.prototype.addIceCandidate;
+ if (!nativeAddIceCandidate || nativeAddIceCandidate.length === 0) {
+ return;
+ }
+ window.RTCPeerConnection.prototype.addIceCandidate =
+ function addIceCandidate() {
+ if (!arguments[0]) {
+ if (arguments[1]) {
+ arguments[1].apply(null);
+ }
+ return Promise.resolve();
+ }
+ // Firefox 68+ emits and processes {candidate: "", ...}, ignore
+ // in older versions.
+ // Native support for ignoring exists for Chrome M77+.
+ // Safari ignores as well, exact version unknown but works in the same
+ // version that also ignores addIceCandidate(null).
+ if (((browserDetails.browser === 'chrome' && browserDetails.version < 78)
+ || (browserDetails.browser === 'firefox'
+ && browserDetails.version < 68)
+ || (browserDetails.browser === 'safari'))
+ && arguments[0] && arguments[0].candidate === '') {
+ return Promise.resolve();
+ }
+ return nativeAddIceCandidate.apply(this, arguments);
+ };
+ }
+
+ var commonShim = /*#__PURE__*/Object.freeze({
+ __proto__: null,
+ shimRTCIceCandidate: shimRTCIceCandidate,
+ shimMaxMessageSize: shimMaxMessageSize,
+ shimSendThrowTypeError: shimSendThrowTypeError,
+ shimConnectionState: shimConnectionState,
+ removeExtmapAllowMixed: removeExtmapAllowMixed,
+ shimAddIceCandidateNullOrEmpty: shimAddIceCandidateNullOrEmpty
+ });
+
+ /*
+ * 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.
+ */
+
+ // Shimming starts here.
+ function adapterFactory({window} = {}, options = {
+ shimChrome: true,
+ shimFirefox: true,
+ shimEdge: true,
+ shimSafari: true,
+ }) {
+ // Utils.
+ const logging = log$1;
+ const browserDetails = detectBrowser(window);
+
+ const adapter = {
+ browserDetails,
+ commonShim,
+ extractVersion: extractVersion,
+ disableLog: disableLog,
+ disableWarnings: disableWarnings
+ };
+
+ // Shim browser if found.
+ switch (browserDetails.browser) {
+ case 'chrome':
+ if (!chromeShim || !shimPeerConnection$2 ||
+ !options.shimChrome) {
+ logging('Chrome shim is not included in this adapter release.');
+ return adapter;
+ }
+ if (browserDetails.version === null) {
+ logging('Chrome shim can not determine version, not shimming.');
+ return adapter;
+ }
+ logging('adapter.js shimming chrome.');
+ // Export to the adapter global object visible in the browser.
+ adapter.browserShim = chromeShim;
+
+ // Must be called before shimPeerConnection.
+ shimAddIceCandidateNullOrEmpty(window, browserDetails);
+
+ shimGetUserMedia$3(window, browserDetails);
+ shimMediaStream(window);
+ shimPeerConnection$2(window, browserDetails);
+ shimOnTrack$1(window);
+ shimAddTrackRemoveTrack(window, browserDetails);
+ shimGetSendersWithDtmf(window);
+ shimGetStats(window);
+ shimSenderReceiverGetStats(window);
+ fixNegotiationNeeded(window, browserDetails);
+
+ shimRTCIceCandidate(window);
+ shimConnectionState(window);
+ shimMaxMessageSize(window, browserDetails);
+ shimSendThrowTypeError(window);
+ removeExtmapAllowMixed(window, browserDetails);
+ break;
+ case 'firefox':
+ if (!firefoxShim || !shimPeerConnection ||
+ !options.shimFirefox) {
+ logging('Firefox shim is not included in this adapter release.');
+ return adapter;
+ }
+ logging('adapter.js shimming firefox.');
+ // Export to the adapter global object visible in the browser.
+ adapter.browserShim = firefoxShim;
+
+ // Must be called before shimPeerConnection.
+ shimAddIceCandidateNullOrEmpty(window, browserDetails);
+
+ shimGetUserMedia$1(window, browserDetails);
+ shimPeerConnection(window, browserDetails);
+ shimOnTrack(window);
+ shimRemoveStream(window);
+ shimSenderGetStats(window);
+ shimReceiverGetStats(window);
+ shimRTCDataChannel(window);
+ shimAddTransceiver(window);
+ shimGetParameters(window);
+ shimCreateOffer(window);
+ shimCreateAnswer(window);
+
+ shimRTCIceCandidate(window);
+ shimConnectionState(window);
+ shimMaxMessageSize(window, browserDetails);
+ shimSendThrowTypeError(window);
+ break;
+ case 'edge':
+ if (!edgeShim || !shimPeerConnection$1 || !options.shimEdge) {
+ logging('MS edge shim is not included in this adapter release.');
+ return adapter;
+ }
+ logging('adapter.js shimming edge.');
+ // Export to the adapter global object visible in the browser.
+ adapter.browserShim = edgeShim;
+
+ shimGetUserMedia$2(window);
+ shimGetDisplayMedia$1(window);
+ shimPeerConnection$1(window, browserDetails);
+ shimReplaceTrack(window);
+
+ // the edge shim implements the full RTCIceCandidate object.
+
+ shimMaxMessageSize(window, browserDetails);
+ shimSendThrowTypeError(window);
+ break;
+ case 'safari':
+ if (!safariShim || !options.shimSafari) {
+ logging('Safari shim is not included in this adapter release.');
+ return adapter;
+ }
+ logging('adapter.js shimming safari.');
+ // Export to the adapter global object visible in the browser.
+ adapter.browserShim = safariShim;
+
+ // Must be called before shimCallbackAPI.
+ shimAddIceCandidateNullOrEmpty(window, browserDetails);
+
+ shimRTCIceServerUrls(window);
+ shimCreateOfferLegacy(window);
+ shimCallbacksAPI(window);
+ shimLocalStreamsAPI(window);
+ shimRemoteStreamsAPI(window);
+ shimTrackEventTransceiver(window);
+ shimGetUserMedia(window);
+ shimAudioContext(window);
+
+ shimRTCIceCandidate(window);
+ shimMaxMessageSize(window, browserDetails);
+ shimSendThrowTypeError(window);
+ removeExtmapAllowMixed(window, browserDetails);
+ break;
+ default:
+ logging('Unsupported browser!');
+ break;
+ }
+
+ return adapter;
+ }
+
+ /*
+ * 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.
+ */
+
+ adapterFactory({window: typeof window === 'undefined' ? undefined : window});
+
+ /**
+ * @class AudioTrackConstraints
+ * @classDesc Constraints for creating an audio MediaStreamTrack.
+ * @memberof Owt.Base
+ * @constructor
+ * @param {Owt.Base.AudioSourceInfo} source Source info of this audio track.
+ */
+
+ class AudioTrackConstraints {
+ // eslint-disable-next-line require-jsdoc
+ constructor(source) {
+ if (!Object.values(AudioSourceInfo).some(v => v === source)) {
+ throw new TypeError('Invalid source.');
+ }
+ /**
+ * @member {string} source
+ * @memberof Owt.Base.AudioTrackConstraints
+ * @desc Values could be "mic", "screen-cast", "file" or "mixed".
+ * @instance
+ */
+
+
+ this.source = source;
+ /**
+ * @member {string} deviceId
+ * @memberof Owt.Base.AudioTrackConstraints
+ * @desc Do not provide deviceId if source is not "mic".
+ * @instance
+ * @see https://w3c.github.io/mediacapture-main/#def-constraint-deviceId
+ */
+
+ this.deviceId = undefined;
+ }
+
+ }
+ /**
+ * @class VideoTrackConstraints
+ * @classDesc Constraints for creating a video MediaStreamTrack.
+ * @memberof Owt.Base
+ * @constructor
+ * @param {Owt.Base.VideoSourceInfo} source Source info of this video track.
+ */
+
+ class VideoTrackConstraints {
+ // eslint-disable-next-line require-jsdoc
+ constructor(source) {
+ if (!Object.values(VideoSourceInfo).some(v => v === source)) {
+ throw new TypeError('Invalid source.');
+ }
+ /**
+ * @member {string} source
+ * @memberof Owt.Base.VideoTrackConstraints
+ * @desc Values could be "camera", "screen-cast", "file" or "mixed".
+ * @instance
+ */
+
+
+ this.source = source;
+ /**
+ * @member {string} deviceId
+ * @memberof Owt.Base.VideoTrackConstraints
+ * @desc Do not provide deviceId if source is not "camera".
+ * @instance
+ * @see https://w3c.github.io/mediacapture-main/#def-constraint-deviceId
+ */
+
+ this.deviceId = undefined;
+ /**
+ * @member {Owt.Base.Resolution} resolution
+ * @memberof Owt.Base.VideoTrackConstraints
+ * @instance
+ */
+
+ this.resolution = undefined;
+ /**
+ * @member {number} frameRate
+ * @memberof Owt.Base.VideoTrackConstraints
+ * @instance
+ */
+
+ this.frameRate = undefined;
+ }
+
+ }
+ /**
+ * @class StreamConstraints
+ * @classDesc Constraints for creating a MediaStream from screen mic and camera.
+ * @memberof Owt.Base
+ * @constructor
+ * @param {?Owt.Base.AudioTrackConstraints} audioConstraints
+ * @param {?Owt.Base.VideoTrackConstraints} videoConstraints
+ */
+
+ class StreamConstraints {
+ // eslint-disable-next-line require-jsdoc
+ constructor(audioConstraints = false, videoConstraints = false) {
+ /**
+ * @member {Owt.Base.MediaStreamTrackDeviceConstraintsForAudio} audio
+ * @memberof Owt.Base.MediaStreamDeviceConstraints
+ * @instance
+ */
+ this.audio = audioConstraints;
+ /**
+ * @member {Owt.Base.MediaStreamTrackDeviceConstraintsForVideo} Video
+ * @memberof Owt.Base.MediaStreamDeviceConstraints
+ * @instance
+ */
+
+ this.video = videoConstraints;
+ }
+
+ } // eslint-disable-next-line require-jsdoc
+
+ function isVideoConstrainsForScreenCast(constraints) {
+ return typeof constraints.video === 'object' && constraints.video.source === VideoSourceInfo.SCREENCAST;
+ }
+ /**
+ * @class MediaStreamFactory
+ * @classDesc A factory to create MediaStream. You can also create MediaStream by yourself.
+ * @memberof Owt.Base
+ */
+
+
+ class MediaStreamFactory {
+ /**
+ * @function createMediaStream
+ * @static
+ * @desc Create a MediaStream with given constraints. If you want to create a MediaStream for screen cast, please make sure both audio and video's source are "screen-cast".
+ * @memberof Owt.Base.MediaStreamFactory
+ * @return {Promise<MediaStream, Error>} Return a promise that is resolved when stream is successfully created, or rejected if one of the following error happened:
+ * - One or more parameters cannot be satisfied.
+ * - Specified device is busy.
+ * - Cannot obtain necessary permission or operation is canceled by user.
+ * - Video source is screen cast, while audio source is not.
+ * - Audio source is screen cast, while video source is disabled.
+ * @param {Owt.Base.StreamConstraints} constraints
+ */
+ static createMediaStream(constraints) {
+ if (typeof constraints !== 'object' || !constraints.audio && !constraints.video) {
+ return Promise.reject(new TypeError('Invalid constrains'));
+ }
+
+ if (!isVideoConstrainsForScreenCast(constraints) && typeof constraints.audio === 'object' && constraints.audio.source === AudioSourceInfo.SCREENCAST) {
+ return Promise.reject(new TypeError('Cannot share screen without video.'));
+ }
+
+ if (isVideoConstrainsForScreenCast(constraints) && !isChrome() && !isFirefox()) {
+ return Promise.reject(new TypeError('Screen sharing only supports Chrome and Firefox.'));
+ }
+
+ if (isVideoConstrainsForScreenCast(constraints) && typeof constraints.audio === 'object' && constraints.audio.source !== AudioSourceInfo.SCREENCAST) {
+ return Promise.reject(new TypeError('Cannot capture video from screen cast while capture audio from' + ' other source.'));
+ } // Check and convert constraints.
+
+
+ if (!constraints.audio && !constraints.video) {
+ return Promise.reject(new TypeError('At least one of audio and video must be requested.'));
+ }
+
+ const mediaConstraints = Object.create({});
+
+ if (typeof constraints.audio === 'object' && constraints.audio.source === AudioSourceInfo.MIC) {
+ mediaConstraints.audio = Object.create({});
+
+ if (isEdge()) {
+ mediaConstraints.audio.deviceId = constraints.audio.deviceId;
+ } else {
+ mediaConstraints.audio.deviceId = {
+ exact: constraints.audio.deviceId
+ };
+ }
+ } else {
+ if (constraints.audio.source === AudioSourceInfo.SCREENCAST) {
+ mediaConstraints.audio = true;
+ } else {
+ mediaConstraints.audio = constraints.audio;
+ }
+ }
+
+ if (typeof constraints.video === 'object') {
+ mediaConstraints.video = Object.create({});
+
+ if (typeof constraints.video.frameRate === 'number') {
+ mediaConstraints.video.frameRate = constraints.video.frameRate;
+ }
+
+ if (constraints.video.resolution && constraints.video.resolution.width && constraints.video.resolution.height) {
+ if (constraints.video.source === VideoSourceInfo.SCREENCAST) {
+ mediaConstraints.video.width = constraints.video.resolution.width;
+ mediaConstraints.video.height = constraints.video.resolution.height;
+ } else {
+ mediaConstraints.video.width = Object.create({});
+ mediaConstraints.video.width.exact = constraints.video.resolution.width;
+ mediaConstraints.video.height = Object.create({});
+ mediaConstraints.video.height.exact = constraints.video.resolution.height;
+ }
+ }
+
+ if (typeof constraints.video.deviceId === 'string') {
+ mediaConstraints.video.deviceId = {
+ exact: constraints.video.deviceId
+ };
+ }
+
+ if (isFirefox() && constraints.video.source === VideoSourceInfo.SCREENCAST) {
+ mediaConstraints.video.mediaSource = 'screen';
+ }
+ } else {
+ mediaConstraints.video = constraints.video;
+ }
+
+ if (isVideoConstrainsForScreenCast(constraints)) {
+ return navigator.mediaDevices.getDisplayMedia(mediaConstraints);
+ } else {
+ return navigator.mediaDevices.getUserMedia(mediaConstraints);
+ }
+ }
+
+ }
+
+ // Copyright (C) <2018> Intel Corporation
+
+ var media = /*#__PURE__*/Object.freeze({
+ __proto__: null,
+ AudioTrackConstraints: AudioTrackConstraints,
+ VideoTrackConstraints: VideoTrackConstraints,
+ StreamConstraints: StreamConstraints,
+ MediaStreamFactory: MediaStreamFactory,
+ AudioSourceInfo: AudioSourceInfo,
+ VideoSourceInfo: VideoSourceInfo,
+ TrackKind: TrackKind,
+ Resolution: Resolution
+ });
+
+ let logger;
+ let errorLogger;
+ function setLogger() {
+ /*eslint-disable */
+ logger = console.log;
+ errorLogger = console.error;
+ /*eslint-enable */
+ }
+ function log(message, ...optionalParams) {
+ if (logger) {
+ logger(message, ...optionalParams);
+ }
+ }
+ function error(message, ...optionalParams) {
+ if (errorLogger) {
+ errorLogger(message, ...optionalParams);
+ }
+ }
+
+ class Event$1 {
+ constructor(type) {
+ this.listener = {};
+ this.type = type | '';
+ }
+
+ on(event, fn) {
+ if (!this.listener[event]) {
+ this.listener[event] = [];
+ }
+
+ this.listener[event].push(fn);
+ return true;
+ }
+
+ off(event, fn) {
+ if (this.listener[event]) {
+ var index = this.listener[event].indexOf(fn);
+
+ if (index > -1) {
+ this.listener[event].splice(index, 1);
+ }
+
+ return true;
+ }
+
+ return false;
+ }
+
+ offAll() {
+ this.listener = {};
+ }
+
+ dispatch(event, data) {
+ if (this.listener[event]) {
+ this.listener[event].map(each => {
+ each.apply(null, [data]);
+ });
+ return true;
+ }
+
+ return false;
+ }
+
+ }
+
+ var bind = function bind(fn, thisArg) {
+ return function wrap() {
+ var args = new Array(arguments.length);
+ for (var i = 0; i < args.length; i++) {
+ args[i] = arguments[i];
+ }
+ return fn.apply(thisArg, args);
+ };
+ };
+
+ /*global toString:true*/
+
+ // utils is a library of generic helper functions non-specific to axios
+
+ var toString = Object.prototype.toString;
+
+ /**
+ * Determine if a value is an Array
+ *
+ * @param {Object} val The value to test
+ * @returns {boolean} True if value is an Array, otherwise false
+ */
+ function isArray(val) {
+ return toString.call(val) === '[object Array]';
+ }
+
+ /**
+ * Determine if a value is undefined
+ *
+ * @param {Object} val The value to test
+ * @returns {boolean} True if the value is undefined, otherwise false
+ */
+ function isUndefined(val) {
+ return typeof val === 'undefined';
+ }
+
+ /**
+ * Determine if a value is a Buffer
+ *
+ * @param {Object} val The value to test
+ * @returns {boolean} True if value is a Buffer, otherwise false
+ */
+ function isBuffer(val) {
+ return val !== null && !isUndefined(val) && val.constructor !== null && !isUndefined(val.constructor)
+ && typeof val.constructor.isBuffer === 'function' && val.constructor.isBuffer(val);
+ }
+
+ /**
+ * Determine if a value is an ArrayBuffer
+ *
+ * @param {Object} val The value to test
+ * @returns {boolean} True if value is an ArrayBuffer, otherwise false
+ */
+ function isArrayBuffer(val) {
+ return toString.call(val) === '[object ArrayBuffer]';
+ }
+
+ /**
+ * Determine if a value is a FormData
+ *
+ * @param {Object} val The value to test
+ * @returns {boolean} True if value is an FormData, otherwise false
+ */
+ function isFormData(val) {
+ return (typeof FormData !== 'undefined') && (val instanceof FormData);
+ }
+
+ /**
+ * Determine if a value is a view on an ArrayBuffer
+ *
+ * @param {Object} val The value to test
+ * @returns {boolean} True if value is a view on an ArrayBuffer, otherwise false
+ */
+ function isArrayBufferView(val) {
+ var result;
+ if ((typeof ArrayBuffer !== 'undefined') && (ArrayBuffer.isView)) {
+ result = ArrayBuffer.isView(val);
+ } else {
+ result = (val) && (val.buffer) && (val.buffer instanceof ArrayBuffer);
+ }
+ return result;
+ }
+
+ /**
+ * Determine if a value is a String
+ *
+ * @param {Object} val The value to test
+ * @returns {boolean} True if value is a String, otherwise false
+ */
+ function isString(val) {
+ return typeof val === 'string';
+ }
+
+ /**
+ * Determine if a value is a Number
+ *
+ * @param {Object} val The value to test
+ * @returns {boolean} True if value is a Number, otherwise false
+ */
+ function isNumber(val) {
+ return typeof val === 'number';
+ }
+
+ /**
+ * Determine if a value is an Object
+ *
+ * @param {Object} val The value to test
+ * @returns {boolean} True if value is an Object, otherwise false
+ */
+ function isObject(val) {
+ return val !== null && typeof val === 'object';
+ }
+
+ /**
+ * Determine if a value is a plain Object
+ *
+ * @param {Object} val The value to test
+ * @return {boolean} True if value is a plain Object, otherwise false
+ */
+ function isPlainObject(val) {
+ if (toString.call(val) !== '[object Object]') {
+ return false;
+ }
+
+ var prototype = Object.getPrototypeOf(val);
+ return prototype === null || prototype === Object.prototype;
+ }
+
+ /**
+ * Determine if a value is a Date
+ *
+ * @param {Object} val The value to test
+ * @returns {boolean} True if value is a Date, otherwise false
+ */
+ function isDate(val) {
+ return toString.call(val) === '[object Date]';
+ }
+
+ /**
+ * Determine if a value is a File
+ *
+ * @param {Object} val The value to test
+ * @returns {boolean} True if value is a File, otherwise false
+ */
+ function isFile(val) {
+ return toString.call(val) === '[object File]';
+ }
+
+ /**
+ * Determine if a value is a Blob
+ *
+ * @param {Object} val The value to test
+ * @returns {boolean} True if value is a Blob, otherwise false
+ */
+ function isBlob(val) {
+ return toString.call(val) === '[object Blob]';
+ }
+
+ /**
+ * Determine if a value is a Function
+ *
+ * @param {Object} val The value to test
+ * @returns {boolean} True if value is a Function, otherwise false
+ */
+ function isFunction(val) {
+ return toString.call(val) === '[object Function]';
+ }
+
+ /**
+ * Determine if a value is a Stream
+ *
+ * @param {Object} val The value to test
+ * @returns {boolean} True if value is a Stream, otherwise false
+ */
+ function isStream(val) {
+ return isObject(val) && isFunction(val.pipe);
+ }
+
+ /**
+ * Determine if a value is a URLSearchParams object
+ *
+ * @param {Object} val The value to test
+ * @returns {boolean} True if value is a URLSearchParams object, otherwise false
+ */
+ function isURLSearchParams(val) {
+ return typeof URLSearchParams !== 'undefined' && val instanceof URLSearchParams;
+ }
+
+ /**
+ * Trim excess whitespace off the beginning and end of a string
+ *
+ * @param {String} str The String to trim
+ * @returns {String} The String freed of excess whitespace
+ */
+ function trim(str) {
+ return str.replace(/^\s*/, '').replace(/\s*$/, '');
+ }
+
+ /**
+ * Determine if we're running in a standard browser environment
+ *
+ * This allows axios to run in a web worker, and react-native.
+ * Both environments support XMLHttpRequest, but not fully standard globals.
+ *
+ * web workers:
+ * typeof window -> undefined
+ * typeof document -> undefined
+ *
+ * react-native:
+ * navigator.product -> 'ReactNative'
+ * nativescript
+ * navigator.product -> 'NativeScript' or 'NS'
+ */
+ function isStandardBrowserEnv() {
+ if (typeof navigator !== 'undefined' && (navigator.product === 'ReactNative' ||
+ navigator.product === 'NativeScript' ||
+ navigator.product === 'NS')) {
+ return false;
+ }
+ return (
+ typeof window !== 'undefined' &&
+ typeof document !== 'undefined'
+ );
+ }
+
+ /**
+ * Iterate over an Array or an Object invoking a function for each item.
+ *
+ * If `obj` is an Array callback will be called passing
+ * the value, index, and complete array for each item.
+ *
+ * If 'obj' is an Object callback will be called passing
+ * the value, key, and complete object for each property.
+ *
+ * @param {Object|Array} obj The object to iterate
+ * @param {Function} fn The callback to invoke for each item
+ */
+ function forEach(obj, fn) {
+ // Don't bother if no value provided
+ if (obj === null || typeof obj === 'undefined') {
+ return;
+ }
+
+ // Force an array if not already something iterable
+ if (typeof obj !== 'object') {
+ /*eslint no-param-reassign:0*/
+ obj = [obj];
+ }
+
+ if (isArray(obj)) {
+ // Iterate over array values
+ for (var i = 0, l = obj.length; i < l; i++) {
+ fn.call(null, obj[i], i, obj);
+ }
+ } else {
+ // Iterate over object keys
+ for (var key in obj) {
+ if (Object.prototype.hasOwnProperty.call(obj, key)) {
+ fn.call(null, obj[key], key, obj);
+ }
+ }
+ }
+ }
+
+ /**
+ * Accepts varargs expecting each argument to be an object, then
+ * immutably merges the properties of each object and returns result.
+ *
+ * When multiple objects contain the same key the later object in
+ * the arguments list will take precedence.
+ *
+ * Example:
+ *
+ * ```js
+ * var result = merge({foo: 123}, {foo: 456});
+ * console.log(result.foo); // outputs 456
+ * ```
+ *
+ * @param {Object} obj1 Object to merge
+ * @returns {Object} Result of all merge properties
+ */
+ function merge(/* obj1, obj2, obj3, ... */) {
+ var result = {};
+ function assignValue(val, key) {
+ if (isPlainObject(result[key]) && isPlainObject(val)) {
+ result[key] = merge(result[key], val);
+ } else if (isPlainObject(val)) {
+ result[key] = merge({}, val);
+ } else if (isArray(val)) {
+ result[key] = val.slice();
+ } else {
+ result[key] = val;
+ }
+ }
+
+ for (var i = 0, l = arguments.length; i < l; i++) {
+ forEach(arguments[i], assignValue);
+ }
+ return result;
+ }
+
+ /**
+ * Extends object a by mutably adding to it the properties of object b.
+ *
+ * @param {Object} a The object to be extended
+ * @param {Object} b The object to copy properties from
+ * @param {Object} thisArg The object to bind function to
+ * @return {Object} The resulting value of object a
+ */
+ function extend(a, b, thisArg) {
+ forEach(b, function assignValue(val, key) {
+ if (thisArg && typeof val === 'function') {
+ a[key] = bind(val, thisArg);
+ } else {
+ a[key] = val;
+ }
+ });
+ return a;
+ }
+
+ /**
+ * Remove byte order marker. This catches EF BB BF (the UTF-8 BOM)
+ *
+ * @param {string} content with BOM
+ * @return {string} content value without BOM
+ */
+ function stripBOM(content) {
+ if (content.charCodeAt(0) === 0xFEFF) {
+ content = content.slice(1);
+ }
+ return content;
+ }
+
+ var utils = {
+ isArray: isArray,
+ isArrayBuffer: isArrayBuffer,
+ isBuffer: isBuffer,
+ isFormData: isFormData,
+ isArrayBufferView: isArrayBufferView,
+ isString: isString,
+ isNumber: isNumber,
+ isObject: isObject,
+ isPlainObject: isPlainObject,
+ isUndefined: isUndefined,
+ isDate: isDate,
+ isFile: isFile,
+ isBlob: isBlob,
+ isFunction: isFunction,
+ isStream: isStream,
+ isURLSearchParams: isURLSearchParams,
+ isStandardBrowserEnv: isStandardBrowserEnv,
+ forEach: forEach,
+ merge: merge,
+ extend: extend,
+ trim: trim,
+ stripBOM: stripBOM
+ };
+
+ function encode(val) {
+ return encodeURIComponent(val).
+ replace(/%3A/gi, ':').
+ replace(/%24/g, '$').
+ replace(/%2C/gi, ',').
+ replace(/%20/g, '+').
+ replace(/%5B/gi, '[').
+ replace(/%5D/gi, ']');
+ }
+
+ /**
+ * Build a URL by appending params to the end
+ *
+ * @param {string} url The base of the url (e.g., http://www.google.com)
+ * @param {object} [params] The params to be appended
+ * @returns {string} The formatted url
+ */
+ var buildURL = function buildURL(url, params, paramsSerializer) {
+ /*eslint no-param-reassign:0*/
+ if (!params) {
+ return url;
+ }
+
+ var serializedParams;
+ if (paramsSerializer) {
+ serializedParams = paramsSerializer(params);
+ } else if (utils.isURLSearchParams(params)) {
+ serializedParams = params.toString();
+ } else {
+ var parts = [];
+
+ utils.forEach(params, function serialize(val, key) {
+ if (val === null || typeof val === 'undefined') {
+ return;
+ }
+
+ if (utils.isArray(val)) {
+ key = key + '[]';
+ } else {
+ val = [val];
+ }
+
+ utils.forEach(val, function parseValue(v) {
+ if (utils.isDate(v)) {
+ v = v.toISOString();
+ } else if (utils.isObject(v)) {
+ v = JSON.stringify(v);
+ }
+ parts.push(encode(key) + '=' + encode(v));
+ });
+ });
+
+ serializedParams = parts.join('&');
+ }
+
+ if (serializedParams) {
+ var hashmarkIndex = url.indexOf('#');
+ if (hashmarkIndex !== -1) {
+ url = url.slice(0, hashmarkIndex);
+ }
+
+ url += (url.indexOf('?') === -1 ? '?' : '&') + serializedParams;
+ }
+
+ return url;
+ };
+
+ function InterceptorManager() {
+ this.handlers = [];
+ }
+
+ /**
+ * Add a new interceptor to the stack
+ *
+ * @param {Function} fulfilled The function to handle `then` for a `Promise`
+ * @param {Function} rejected The function to handle `reject` for a `Promise`
+ *
+ * @return {Number} An ID used to remove interceptor later
+ */
+ InterceptorManager.prototype.use = function use(fulfilled, rejected) {
+ this.handlers.push({
+ fulfilled: fulfilled,
+ rejected: rejected
+ });
+ return this.handlers.length - 1;
+ };
+
+ /**
+ * Remove an interceptor from the stack
+ *
+ * @param {Number} id The ID that was returned by `use`
+ */
+ InterceptorManager.prototype.eject = function eject(id) {
+ if (this.handlers[id]) {
+ this.handlers[id] = null;
+ }
+ };
+
+ /**
+ * Iterate over all the registered interceptors
+ *
+ * This method is particularly useful for skipping over any
+ * interceptors that may have become `null` calling `eject`.
+ *
+ * @param {Function} fn The function to call for each interceptor
+ */
+ InterceptorManager.prototype.forEach = function forEach(fn) {
+ utils.forEach(this.handlers, function forEachHandler(h) {
+ if (h !== null) {
+ fn(h);
+ }
+ });
+ };
+
+ var InterceptorManager_1 = InterceptorManager;
+
+ /**
+ * Transform the data for a request or a response
+ *
+ * @param {Object|String} data The data to be transformed
+ * @param {Array} headers The headers for the request or response
+ * @param {Array|Function} fns A single function or Array of functions
+ * @returns {*} The resulting transformed data
+ */
+ var transformData = function transformData(data, headers, fns) {
+ /*eslint no-param-reassign:0*/
+ utils.forEach(fns, function transform(fn) {
+ data = fn(data, headers);
+ });
+
+ return data;
+ };
+
+ var isCancel = function isCancel(value) {
+ return !!(value && value.__CANCEL__);
+ };
+
+ var normalizeHeaderName = function normalizeHeaderName(headers, normalizedName) {
+ utils.forEach(headers, function processHeader(value, name) {
+ if (name !== normalizedName && name.toUpperCase() === normalizedName.toUpperCase()) {
+ headers[normalizedName] = value;
+ delete headers[name];
+ }
+ });
+ };
+
+ /**
+ * Update an Error with the specified config, error code, and response.
+ *
+ * @param {Error} error The error to update.
+ * @param {Object} config The config.
+ * @param {string} [code] The error code (for example, 'ECONNABORTED').
+ * @param {Object} [request] The request.
+ * @param {Object} [response] The response.
+ * @returns {Error} The error.
+ */
+ var enhanceError = function enhanceError(error, config, code, request, response) {
+ error.config = config;
+ if (code) {
+ error.code = code;
+ }
+
+ error.request = request;
+ error.response = response;
+ error.isAxiosError = true;
+
+ error.toJSON = function toJSON() {
+ return {
+ // Standard
+ message: this.message,
+ name: this.name,
+ // Microsoft
+ description: this.description,
+ number: this.number,
+ // Mozilla
+ fileName: this.fileName,
+ lineNumber: this.lineNumber,
+ columnNumber: this.columnNumber,
+ stack: this.stack,
+ // Axios
+ config: this.config,
+ code: this.code
+ };
+ };
+ return error;
+ };
+
+ /**
+ * Create an Error with the specified message, config, error code, request and response.
+ *
+ * @param {string} message The error message.
+ * @param {Object} config The config.
+ * @param {string} [code] The error code (for example, 'ECONNABORTED').
+ * @param {Object} [request] The request.
+ * @param {Object} [response] The response.
+ * @returns {Error} The created error.
+ */
+ var createError = function createError(message, config, code, request, response) {
+ var error = new Error(message);
+ return enhanceError(error, config, code, request, response);
+ };
+
+ /**
+ * Resolve or reject a Promise based on response status.
+ *
+ * @param {Function} resolve A function that resolves the promise.
+ * @param {Function} reject A function that rejects the promise.
+ * @param {object} response The response.
+ */
+ var settle = function settle(resolve, reject, response) {
+ var validateStatus = response.config.validateStatus;
+ if (!response.status || !validateStatus || validateStatus(response.status)) {
+ resolve(response);
+ } else {
+ reject(createError(
+ 'Request failed with status code ' + response.status,
+ response.config,
+ null,
+ response.request,
+ response
+ ));
+ }
+ };
+
+ var cookies = (
+ utils.isStandardBrowserEnv() ?
+
+ // Standard browser envs support document.cookie
+ (function standardBrowserEnv() {
+ return {
+ write: function write(name, value, expires, path, domain, secure) {
+ var cookie = [];
+ cookie.push(name + '=' + encodeURIComponent(value));
+
+ if (utils.isNumber(expires)) {
+ cookie.push('expires=' + new Date(expires).toGMTString());
+ }
+
+ if (utils.isString(path)) {
+ cookie.push('path=' + path);
+ }
+
+ if (utils.isString(domain)) {
+ cookie.push('domain=' + domain);
+ }
+
+ if (secure === true) {
+ cookie.push('secure');
+ }
+
+ document.cookie = cookie.join('; ');
+ },
+
+ read: function read(name) {
+ var match = document.cookie.match(new RegExp('(^|;\\s*)(' + name + ')=([^;]*)'));
+ return (match ? decodeURIComponent(match[3]) : null);
+ },
+
+ remove: function remove(name) {
+ this.write(name, '', Date.now() - 86400000);
+ }
+ };
+ })() :
+
+ // Non standard browser env (web workers, react-native) lack needed support.
+ (function nonStandardBrowserEnv() {
+ return {
+ write: function write() {},
+ read: function read() { return null; },
+ remove: function remove() {}
+ };
+ })()
+ );
+
+ /**
+ * Determines whether the specified URL is absolute
+ *
+ * @param {string} url The URL to test
+ * @returns {boolean} True if the specified URL is absolute, otherwise false
+ */
+ var isAbsoluteURL = function isAbsoluteURL(url) {
+ // A URL is considered absolute if it begins with "<scheme>://" or "//" (protocol-relative URL).
+ // RFC 3986 defines scheme name as a sequence of characters beginning with a letter and followed
+ // by any combination of letters, digits, plus, period, or hyphen.
+ return /^([a-z][a-z\d\+\-\.]*:)?\/\//i.test(url);
+ };
+
+ /**
+ * Creates a new URL by combining the specified URLs
+ *
+ * @param {string} baseURL The base URL
+ * @param {string} relativeURL The relative URL
+ * @returns {string} The combined URL
+ */
+ var combineURLs = function combineURLs(baseURL, relativeURL) {
+ return relativeURL
+ ? baseURL.replace(/\/+$/, '') + '/' + relativeURL.replace(/^\/+/, '')
+ : baseURL;
+ };
+
+ /**
+ * Creates a new URL by combining the baseURL with the requestedURL,
+ * only when the requestedURL is not already an absolute URL.
+ * If the requestURL is absolute, this function returns the requestedURL untouched.
+ *
+ * @param {string} baseURL The base URL
+ * @param {string} requestedURL Absolute or relative URL to combine
+ * @returns {string} The combined full path
+ */
+ var buildFullPath = function buildFullPath(baseURL, requestedURL) {
+ if (baseURL && !isAbsoluteURL(requestedURL)) {
+ return combineURLs(baseURL, requestedURL);
+ }
+ return requestedURL;
+ };
+
+ // Headers whose duplicates are ignored by node
+ // c.f. https://nodejs.org/api/http.html#http_message_headers
+ var ignoreDuplicateOf = [
+ 'age', 'authorization', 'content-length', 'content-type', 'etag',
+ 'expires', 'from', 'host', 'if-modified-since', 'if-unmodified-since',
+ 'last-modified', 'location', 'max-forwards', 'proxy-authorization',
+ 'referer', 'retry-after', 'user-agent'
+ ];
+
+ /**
+ * Parse headers into an object
+ *
+ * ```
+ * Date: Wed, 27 Aug 2014 08:58:49 GMT
+ * Content-Type: application/json
+ * Connection: keep-alive
+ * Transfer-Encoding: chunked
+ * ```
+ *
+ * @param {String} headers Headers needing to be parsed
+ * @returns {Object} Headers parsed into an object
+ */
+ var parseHeaders = function parseHeaders(headers) {
+ var parsed = {};
+ var key;
+ var val;
+ var i;
+
+ if (!headers) { return parsed; }
+
+ utils.forEach(headers.split('\n'), function parser(line) {
+ i = line.indexOf(':');
+ key = utils.trim(line.substr(0, i)).toLowerCase();
+ val = utils.trim(line.substr(i + 1));
+
+ if (key) {
+ if (parsed[key] && ignoreDuplicateOf.indexOf(key) >= 0) {
+ return;
+ }
+ if (key === 'set-cookie') {
+ parsed[key] = (parsed[key] ? parsed[key] : []).concat([val]);
+ } else {
+ parsed[key] = parsed[key] ? parsed[key] + ', ' + val : val;
+ }
+ }
+ });
+
+ return parsed;
+ };
+
+ var isURLSameOrigin = (
+ utils.isStandardBrowserEnv() ?
+
+ // Standard browser envs have full support of the APIs needed to test
+ // whether the request URL is of the same origin as current location.
+ (function standardBrowserEnv() {
+ var msie = /(msie|trident)/i.test(navigator.userAgent);
+ var urlParsingNode = document.createElement('a');
+ var originURL;
+
+ /**
+ * Parse a URL to discover it's components
+ *
+ * @param {String} url The URL to be parsed
+ * @returns {Object}
+ */
+ function resolveURL(url) {
+ var href = url;
+
+ if (msie) {
+ // IE needs attribute set twice to normalize properties
+ urlParsingNode.setAttribute('href', href);
+ href = urlParsingNode.href;
+ }
+
+ urlParsingNode.setAttribute('href', href);
+
+ // urlParsingNode provides the UrlUtils interface - http://url.spec.whatwg.org/#urlutils
+ return {
+ href: urlParsingNode.href,
+ protocol: urlParsingNode.protocol ? urlParsingNode.protocol.replace(/:$/, '') : '',
+ host: urlParsingNode.host,
+ search: urlParsingNode.search ? urlParsingNode.search.replace(/^\?/, '') : '',
+ hash: urlParsingNode.hash ? urlParsingNode.hash.replace(/^#/, '') : '',
+ hostname: urlParsingNode.hostname,
+ port: urlParsingNode.port,
+ pathname: (urlParsingNode.pathname.charAt(0) === '/') ?
+ urlParsingNode.pathname :
+ '/' + urlParsingNode.pathname
+ };
+ }
+
+ originURL = resolveURL(window.location.href);
+
+ /**
+ * Determine if a URL shares the same origin as the current location
+ *
+ * @param {String} requestURL The URL to test
+ * @returns {boolean} True if URL shares the same origin, otherwise false
+ */
+ return function isURLSameOrigin(requestURL) {
+ var parsed = (utils.isString(requestURL)) ? resolveURL(requestURL) : requestURL;
+ return (parsed.protocol === originURL.protocol &&
+ parsed.host === originURL.host);
+ };
+ })() :
+
+ // Non standard browser envs (web workers, react-native) lack needed support.
+ (function nonStandardBrowserEnv() {
+ return function isURLSameOrigin() {
+ return true;
+ };
+ })()
+ );
+
+ var xhr = function xhrAdapter(config) {
+ return new Promise(function dispatchXhrRequest(resolve, reject) {
+ var requestData = config.data;
+ var requestHeaders = config.headers;
+
+ if (utils.isFormData(requestData)) {
+ delete requestHeaders['Content-Type']; // Let the browser set it
+ }
+
+ var request = new XMLHttpRequest();
+
+ // HTTP basic authentication
+ if (config.auth) {
+ var username = config.auth.username || '';
+ var password = config.auth.password ? unescape(encodeURIComponent(config.auth.password)) : '';
+ requestHeaders.Authorization = 'Basic ' + btoa(username + ':' + password);
+ }
+
+ var fullPath = buildFullPath(config.baseURL, config.url);
+ request.open(config.method.toUpperCase(), buildURL(fullPath, config.params, config.paramsSerializer), true);
+
+ // Set the request timeout in MS
+ request.timeout = config.timeout;
+
+ // Listen for ready state
+ request.onreadystatechange = function handleLoad() {
+ if (!request || request.readyState !== 4) {
+ return;
+ }
+
+ // The request errored out and we didn't get a response, this will be
+ // handled by onerror instead
+ // With one exception: request that using file: protocol, most browsers
+ // will return status as 0 even though it's a successful request
+ if (request.status === 0 && !(request.responseURL && request.responseURL.indexOf('file:') === 0)) {
+ return;
+ }
+
+ // Prepare the response
+ var responseHeaders = 'getAllResponseHeaders' in request ? parseHeaders(request.getAllResponseHeaders()) : null;
+ var responseData = !config.responseType || config.responseType === 'text' ? request.responseText : request.response;
+ var response = {
+ data: responseData,
+ status: request.status,
+ statusText: request.statusText,
+ headers: responseHeaders,
+ config: config,
+ request: request
+ };
+
+ settle(resolve, reject, response);
+
+ // Clean up request
+ request = null;
+ };
+
+ // Handle browser request cancellation (as opposed to a manual cancellation)
+ request.onabort = function handleAbort() {
+ if (!request) {
+ return;
+ }
+
+ reject(createError('Request aborted', config, 'ECONNABORTED', request));
+
+ // Clean up request
+ request = null;
+ };
+
+ // Handle low level network errors
+ request.onerror = function handleError() {
+ // Real errors are hidden from us by the browser
+ // onerror should only fire if it's a network error
+ reject(createError('Network Error', config, null, request));
+
+ // Clean up request
+ request = null;
+ };
+
+ // Handle timeout
+ request.ontimeout = function handleTimeout() {
+ var timeoutErrorMessage = 'timeout of ' + config.timeout + 'ms exceeded';
+ if (config.timeoutErrorMessage) {
+ timeoutErrorMessage = config.timeoutErrorMessage;
+ }
+ reject(createError(timeoutErrorMessage, config, 'ECONNABORTED',
+ request));
+
+ // Clean up request
+ request = null;
+ };
+
+ // Add xsrf header
+ // This is only done if running in a standard browser environment.
+ // Specifically not if we're in a web worker, or react-native.
+ if (utils.isStandardBrowserEnv()) {
+ // Add xsrf header
+ var xsrfValue = (config.withCredentials || isURLSameOrigin(fullPath)) && config.xsrfCookieName ?
+ cookies.read(config.xsrfCookieName) :
+ undefined;
+
+ if (xsrfValue) {
+ requestHeaders[config.xsrfHeaderName] = xsrfValue;
+ }
+ }
+
+ // Add headers to the request
+ if ('setRequestHeader' in request) {
+ utils.forEach(requestHeaders, function setRequestHeader(val, key) {
+ if (typeof requestData === 'undefined' && key.toLowerCase() === 'content-type') {
+ // Remove Content-Type if data is undefined
+ delete requestHeaders[key];
+ } else {
+ // Otherwise add header to the request
+ request.setRequestHeader(key, val);
+ }
+ });
+ }
+
+ // Add withCredentials to request if needed
+ if (!utils.isUndefined(config.withCredentials)) {
+ request.withCredentials = !!config.withCredentials;
+ }
+
+ // Add responseType to request if needed
+ if (config.responseType) {
+ try {
+ request.responseType = config.responseType;
+ } catch (e) {
+ // Expected DOMException thrown by browsers not compatible XMLHttpRequest Level 2.
+ // But, this can be suppressed for 'json' type as it can be parsed by default 'transformResponse' function.
+ if (config.responseType !== 'json') {
+ throw e;
+ }
+ }
+ }
+
+ // Handle progress if needed
+ if (typeof config.onDownloadProgress === 'function') {
+ request.addEventListener('progress', config.onDownloadProgress);
+ }
+
+ // Not all browsers support upload events
+ if (typeof config.onUploadProgress === 'function' && request.upload) {
+ request.upload.addEventListener('progress', config.onUploadProgress);
+ }
+
+ if (config.cancelToken) {
+ // Handle cancellation
+ config.cancelToken.promise.then(function onCanceled(cancel) {
+ if (!request) {
+ return;
+ }
+
+ request.abort();
+ reject(cancel);
+ // Clean up request
+ request = null;
+ });
+ }
+
+ if (!requestData) {
+ requestData = null;
+ }
+
+ // Send the request
+ request.send(requestData);
+ });
+ };
+
+ var DEFAULT_CONTENT_TYPE = {
+ 'Content-Type': 'application/x-www-form-urlencoded'
+ };
+
+ function setContentTypeIfUnset(headers, value) {
+ if (!utils.isUndefined(headers) && utils.isUndefined(headers['Content-Type'])) {
+ headers['Content-Type'] = value;
+ }
+ }
+
+ function getDefaultAdapter() {
+ var adapter;
+ if (typeof XMLHttpRequest !== 'undefined') {
+ // For browsers use XHR adapter
+ adapter = xhr;
+ } else if (typeof process !== 'undefined' && Object.prototype.toString.call(process) === '[object process]') {
+ // For node use HTTP adapter
+ adapter = xhr;
+ }
+ return adapter;
+ }
+
+ var defaults = {
+ adapter: getDefaultAdapter(),
+
+ transformRequest: [function transformRequest(data, headers) {
+ normalizeHeaderName(headers, 'Accept');
+ normalizeHeaderName(headers, 'Content-Type');
+ if (utils.isFormData(data) ||
+ utils.isArrayBuffer(data) ||
+ utils.isBuffer(data) ||
+ utils.isStream(data) ||
+ utils.isFile(data) ||
+ utils.isBlob(data)
+ ) {
+ return data;
+ }
+ if (utils.isArrayBufferView(data)) {
+ return data.buffer;
+ }
+ if (utils.isURLSearchParams(data)) {
+ setContentTypeIfUnset(headers, 'application/x-www-form-urlencoded;charset=utf-8');
+ return data.toString();
+ }
+ if (utils.isObject(data)) {
+ setContentTypeIfUnset(headers, 'application/json;charset=utf-8');
+ return JSON.stringify(data);
+ }
+ return data;
+ }],
+
+ transformResponse: [function transformResponse(data) {
+ /*eslint no-param-reassign:0*/
+ if (typeof data === 'string') {
+ try {
+ data = JSON.parse(data);
+ } catch (e) { /* Ignore */ }
+ }
+ return data;
+ }],
+
+ /**
+ * A timeout in milliseconds to abort a request. If set to 0 (default) a
+ * timeout is not created.
+ */
+ timeout: 0,
+
+ xsrfCookieName: 'XSRF-TOKEN',
+ xsrfHeaderName: 'X-XSRF-TOKEN',
+
+ maxContentLength: -1,
+ maxBodyLength: -1,
+
+ validateStatus: function validateStatus(status) {
+ return status >= 200 && status < 300;
+ }
+ };
+
+ defaults.headers = {
+ common: {
+ 'Accept': 'application/json, text/plain, */*'
+ }
+ };
+
+ utils.forEach(['delete', 'get', 'head'], function forEachMethodNoData(method) {
+ defaults.headers[method] = {};
+ });
+
+ utils.forEach(['post', 'put', 'patch'], function forEachMethodWithData(method) {
+ defaults.headers[method] = utils.merge(DEFAULT_CONTENT_TYPE);
+ });
+
+ var defaults_1 = defaults;
+
+ /**
+ * Throws a `Cancel` if cancellation has been requested.
+ */
+ function throwIfCancellationRequested(config) {
+ if (config.cancelToken) {
+ config.cancelToken.throwIfRequested();
+ }
+ }
+
+ /**
+ * Dispatch a request to the server using the configured adapter.
+ *
+ * @param {object} config The config that is to be used for the request
+ * @returns {Promise} The Promise to be fulfilled
+ */
+ var dispatchRequest = function dispatchRequest(config) {
+ throwIfCancellationRequested(config);
+
+ // Ensure headers exist
+ config.headers = config.headers || {};
+
+ // Transform request data
+ config.data = transformData(
+ config.data,
+ config.headers,
+ config.transformRequest
+ );
+
+ // Flatten headers
+ config.headers = utils.merge(
+ config.headers.common || {},
+ config.headers[config.method] || {},
+ config.headers
+ );
+
+ utils.forEach(
+ ['delete', 'get', 'head', 'post', 'put', 'patch', 'common'],
+ function cleanHeaderConfig(method) {
+ delete config.headers[method];
+ }
+ );
+
+ var adapter = config.adapter || defaults_1.adapter;
+
+ return adapter(config).then(function onAdapterResolution(response) {
+ throwIfCancellationRequested(config);
+
+ // Transform response data
+ response.data = transformData(
+ response.data,
+ response.headers,
+ config.transformResponse
+ );
+
+ return response;
+ }, function onAdapterRejection(reason) {
+ if (!isCancel(reason)) {
+ throwIfCancellationRequested(config);
+
+ // Transform response data
+ if (reason && reason.response) {
+ reason.response.data = transformData(
+ reason.response.data,
+ reason.response.headers,
+ config.transformResponse
+ );
+ }
+ }
+
+ return Promise.reject(reason);
+ });
+ };
+
+ /**
+ * Config-specific merge-function which creates a new config-object
+ * by merging two configuration objects together.
+ *
+ * @param {Object} config1
+ * @param {Object} config2
+ * @returns {Object} New object resulting from merging config2 to config1
+ */
+ var mergeConfig = function mergeConfig(config1, config2) {
+ // eslint-disable-next-line no-param-reassign
+ config2 = config2 || {};
+ var config = {};
+
+ var valueFromConfig2Keys = ['url', 'method', 'data'];
+ var mergeDeepPropertiesKeys = ['headers', 'auth', 'proxy', 'params'];
+ var defaultToConfig2Keys = [
+ 'baseURL', 'transformRequest', 'transformResponse', 'paramsSerializer',
+ 'timeout', 'timeoutMessage', 'withCredentials', 'adapter', 'responseType', 'xsrfCookieName',
+ 'xsrfHeaderName', 'onUploadProgress', 'onDownloadProgress', 'decompress',
+ 'maxContentLength', 'maxBodyLength', 'maxRedirects', 'transport', 'httpAgent',
+ 'httpsAgent', 'cancelToken', 'socketPath', 'responseEncoding'
+ ];
+ var directMergeKeys = ['validateStatus'];
+
+ function getMergedValue(target, source) {
+ if (utils.isPlainObject(target) && utils.isPlainObject(source)) {
+ return utils.merge(target, source);
+ } else if (utils.isPlainObject(source)) {
+ return utils.merge({}, source);
+ } else if (utils.isArray(source)) {
+ return source.slice();
+ }
+ return source;
+ }
+
+ function mergeDeepProperties(prop) {
+ if (!utils.isUndefined(config2[prop])) {
+ config[prop] = getMergedValue(config1[prop], config2[prop]);
+ } else if (!utils.isUndefined(config1[prop])) {
+ config[prop] = getMergedValue(undefined, config1[prop]);
+ }
+ }
+
+ utils.forEach(valueFromConfig2Keys, function valueFromConfig2(prop) {
+ if (!utils.isUndefined(config2[prop])) {
+ config[prop] = getMergedValue(undefined, config2[prop]);
+ }
+ });
+
+ utils.forEach(mergeDeepPropertiesKeys, mergeDeepProperties);
+
+ utils.forEach(defaultToConfig2Keys, function defaultToConfig2(prop) {
+ if (!utils.isUndefined(config2[prop])) {
+ config[prop] = getMergedValue(undefined, config2[prop]);
+ } else if (!utils.isUndefined(config1[prop])) {
+ config[prop] = getMergedValue(undefined, config1[prop]);
+ }
+ });
+
+ utils.forEach(directMergeKeys, function merge(prop) {
+ if (prop in config2) {
+ config[prop] = getMergedValue(config1[prop], config2[prop]);
+ } else if (prop in config1) {
+ config[prop] = getMergedValue(undefined, config1[prop]);
+ }
+ });
+
+ var axiosKeys = valueFromConfig2Keys
+ .concat(mergeDeepPropertiesKeys)
+ .concat(defaultToConfig2Keys)
+ .concat(directMergeKeys);
+
+ var otherKeys = Object
+ .keys(config1)
+ .concat(Object.keys(config2))
+ .filter(function filterAxiosKeys(key) {
+ return axiosKeys.indexOf(key) === -1;
+ });
+
+ utils.forEach(otherKeys, mergeDeepProperties);
+
+ return config;
+ };
+
+ /**
+ * Create a new instance of Axios
+ *
+ * @param {Object} instanceConfig The default config for the instance
+ */
+ function Axios(instanceConfig) {
+ this.defaults = instanceConfig;
+ this.interceptors = {
+ request: new InterceptorManager_1(),
+ response: new InterceptorManager_1()
+ };
+ }
+
+ /**
+ * Dispatch a request
+ *
+ * @param {Object} config The config specific for this request (merged with this.defaults)
+ */
+ Axios.prototype.request = function request(config) {
+ /*eslint no-param-reassign:0*/
+ // Allow for axios('example/url'[, config]) a la fetch API
+ if (typeof config === 'string') {
+ config = arguments[1] || {};
+ config.url = arguments[0];
+ } else {
+ config = config || {};
+ }
+
+ config = mergeConfig(this.defaults, config);
+
+ // Set config.method
+ if (config.method) {
+ config.method = config.method.toLowerCase();
+ } else if (this.defaults.method) {
+ config.method = this.defaults.method.toLowerCase();
+ } else {
+ config.method = 'get';
+ }
+
+ // Hook up interceptors middleware
+ var chain = [dispatchRequest, undefined];
+ var promise = Promise.resolve(config);
+
+ this.interceptors.request.forEach(function unshiftRequestInterceptors(interceptor) {
+ chain.unshift(interceptor.fulfilled, interceptor.rejected);
+ });
+
+ this.interceptors.response.forEach(function pushResponseInterceptors(interceptor) {
+ chain.push(interceptor.fulfilled, interceptor.rejected);
+ });
+
+ while (chain.length) {
+ promise = promise.then(chain.shift(), chain.shift());
+ }
+
+ return promise;
+ };
+
+ Axios.prototype.getUri = function getUri(config) {
+ config = mergeConfig(this.defaults, config);
+ return buildURL(config.url, config.params, config.paramsSerializer).replace(/^\?/, '');
+ };
+
+ // Provide aliases for supported request methods
+ utils.forEach(['delete', 'get', 'head', 'options'], function forEachMethodNoData(method) {
+ /*eslint func-names:0*/
+ Axios.prototype[method] = function(url, config) {
+ return this.request(mergeConfig(config || {}, {
+ method: method,
+ url: url,
+ data: (config || {}).data
+ }));
+ };
+ });
+
+ utils.forEach(['post', 'put', 'patch'], function forEachMethodWithData(method) {
+ /*eslint func-names:0*/
+ Axios.prototype[method] = function(url, data, config) {
+ return this.request(mergeConfig(config || {}, {
+ method: method,
+ url: url,
+ data: data
+ }));
+ };
+ });
+
+ var Axios_1 = Axios;
+
+ /**
+ * A `Cancel` is an object that is thrown when an operation is canceled.
+ *
+ * @class
+ * @param {string=} message The message.
+ */
+ function Cancel(message) {
+ this.message = message;
+ }
+
+ Cancel.prototype.toString = function toString() {
+ return 'Cancel' + (this.message ? ': ' + this.message : '');
+ };
+
+ Cancel.prototype.__CANCEL__ = true;
+
+ var Cancel_1 = Cancel;
+
+ /**
+ * A `CancelToken` is an object that can be used to request cancellation of an operation.
+ *
+ * @class
+ * @param {Function} executor The executor function.
+ */
+ function CancelToken(executor) {
+ if (typeof executor !== 'function') {
+ throw new TypeError('executor must be a function.');
+ }
+
+ var resolvePromise;
+ this.promise = new Promise(function promiseExecutor(resolve) {
+ resolvePromise = resolve;
+ });
+
+ var token = this;
+ executor(function cancel(message) {
+ if (token.reason) {
+ // Cancellation has already been requested
+ return;
+ }
+
+ token.reason = new Cancel_1(message);
+ resolvePromise(token.reason);
+ });
+ }
+
+ /**
+ * Throws a `Cancel` if cancellation has been requested.
+ */
+ CancelToken.prototype.throwIfRequested = function throwIfRequested() {
+ if (this.reason) {
+ throw this.reason;
+ }
+ };
+
+ /**
+ * Returns an object that contains a new `CancelToken` and a function that, when called,
+ * cancels the `CancelToken`.
+ */
+ CancelToken.source = function source() {
+ var cancel;
+ var token = new CancelToken(function executor(c) {
+ cancel = c;
+ });
+ return {
+ token: token,
+ cancel: cancel
+ };
+ };
+
+ var CancelToken_1 = CancelToken;
+
+ /**
+ * Syntactic sugar for invoking a function and expanding an array for arguments.
+ *
+ * Common use case would be to use `Function.prototype.apply`.
+ *
+ * ```js
+ * function f(x, y, z) {}
+ * var args = [1, 2, 3];
+ * f.apply(null, args);
+ * ```
+ *
+ * With `spread` this example can be re-written.
+ *
+ * ```js
+ * spread(function(x, y, z) {})([1, 2, 3]);
+ * ```
+ *
+ * @param {Function} callback
+ * @returns {Function}
+ */
+ var spread = function spread(callback) {
+ return function wrap(arr) {
+ return callback.apply(null, arr);
+ };
+ };
+
+ /**
+ * Determines whether the payload is an error thrown by Axios
+ *
+ * @param {*} payload The value to test
+ * @returns {boolean} True if the payload is an error thrown by Axios, otherwise false
+ */
+ var isAxiosError = function isAxiosError(payload) {
+ return (typeof payload === 'object') && (payload.isAxiosError === true);
+ };
+
+ /**
+ * Create an instance of Axios
+ *
+ * @param {Object} defaultConfig The default config for the instance
+ * @return {Axios} A new instance of Axios
+ */
+ function createInstance(defaultConfig) {
+ var context = new Axios_1(defaultConfig);
+ var instance = bind(Axios_1.prototype.request, context);
+
+ // Copy axios.prototype to instance
+ utils.extend(instance, Axios_1.prototype, context);
+
+ // Copy context to instance
+ utils.extend(instance, context);
+
+ return instance;
+ }
+
+ // Create the default instance to be exported
+ var axios$1 = createInstance(defaults_1);
+
+ // Expose Axios class to allow class inheritance
+ axios$1.Axios = Axios_1;
+
+ // Factory for creating new instances
+ axios$1.create = function create(instanceConfig) {
+ return createInstance(mergeConfig(axios$1.defaults, instanceConfig));
+ };
+
+ // Expose Cancel & CancelToken
+ axios$1.Cancel = Cancel_1;
+ axios$1.CancelToken = CancelToken_1;
+ axios$1.isCancel = isCancel;
+
+ // Expose all/spread
+ axios$1.all = function all(promises) {
+ return Promise.all(promises);
+ };
+ axios$1.spread = spread;
+
+ // Expose isAxiosError
+ axios$1.isAxiosError = isAxiosError;
+
+ var axios_1 = axios$1;
+
+ // Allow use of default import syntax in TypeScript
+ var _default = axios$1;
+ axios_1.default = _default;
+
+ var axios = axios_1;
+
+ class RTCEndpoint extends Event$1 {
+ constructor(options) {
+ super('RTCPusherPlayer');
+ this.TAG = '[RTCPusherPlayer]';
+ let defaults = {
+ element: '',
+ // html video element
+ debug: false,
+ // if output debug log
+ zlmsdpUrl: '',
+ simulecast: false,
+ useCamera: true,
+ audioEnable: true,
+ videoEnable: true,
+ recvOnly: false
+ };
+ this.options = Object.assign({}, defaults, options);
+
+ if (this.options.debug) {
+ setLogger();
+ }
+
+ this.e = {
+ onicecandidate: this._onIceCandidate.bind(this),
+ ontrack: this._onTrack.bind(this),
+ onicecandidateerror: this._onIceCandidateError.bind(this)
+ };
+ this._remoteStream = null;
+ this._localStream = null;
+ this.pc = new RTCPeerConnection(null);
+ this.pc.onicecandidate = this.e.onicecandidate;
+ this.pc.onicecandidateerror = this.e.onicecandidateerror;
+ this.pc.ontrack = this.e.ontrack;
+ if (!this.options.recvOnly && (this.options.audioEnable || this.options.videoEnable)) this.start();else this.receive();
+ }
+
+ receive() {
+
+ const AudioTransceiverInit = {
+ direction: 'recvonly',
+ sendEncodings: []
+ };
+ const VideoTransceiverInit = {
+ direction: 'recvonly',
+ sendEncodings: []
+ };
+ this.pc.addTransceiver('audio', AudioTransceiverInit);
+ this.pc.addTransceiver('video', VideoTransceiverInit);
+ this.pc.createOffer().then(desc => {
+ log(this.TAG, 'offer:', desc.sdp);
+ this.pc.setLocalDescription(desc).then(() => {
+ axios({
+ method: 'post',
+ url: this.options.zlmsdpUrl,
+ responseType: 'json',
+ data: desc.sdp,
+ headers: {
+ 'Content-Type': 'text/plain;charset=utf-8'
+ }
+ }).then(response => {
+ let ret = response.data; //JSON.parse(response.data);
+
+ if (ret.code != 0) {
+ // mean failed for offer/anwser exchange
+ this.dispatch(Events$1.WEBRTC_OFFER_ANWSER_EXCHANGE_FAILED, ret);
+ return;
+ }
+
+ let anwser = {};
+ anwser.sdp = ret.sdp;
+ anwser.type = 'answer';
+ log(this.TAG, 'answer:', ret.sdp);
+ this.pc.setRemoteDescription(anwser).then(() => {
+ log(this.TAG, 'set remote sucess');
+ }).catch(e => {
+ error(this.TAG, e);
+ });
+ });
+ });
+ }).catch(e => {
+ error(this.TAG, e);
+ });
+ }
+
+ start() {
+ let videoConstraints = false;
+ let audioConstraints = false;
+
+ if (this.options.useCamera) {
+ if (this.options.videoEnable) videoConstraints = new VideoTrackConstraints(VideoSourceInfo.CAMERA);
+ if (this.options.audioEnable) audioConstraints = new AudioTrackConstraints(AudioSourceInfo.MIC);
+ } else {
+ if (this.options.videoEnable) {
+ videoConstraints = new VideoTrackConstraints(VideoSourceInfo.SCREENCAST);
+ if (this.options.audioEnable) audioConstraints = new AudioTrackConstraints(AudioSourceInfo.SCREENCAST);
+ } else {
+ if (this.options.audioEnable) audioConstraints = new AudioTrackConstraints(AudioSourceInfo.MIC);else {
+ // error shared display media not only audio
+ error(this.TAG, 'error paramter');
+ }
+ }
+ }
+
+ MediaStreamFactory.createMediaStream(new StreamConstraints(audioConstraints, videoConstraints)).then(stream => {
+ this._localStream = stream;
+ this.dispatch(Events$1.WEBRTC_ON_LOCAL_STREAM, stream);
+ const AudioTransceiverInit = {
+ direction: 'sendrecv',
+ sendEncodings: []
+ };
+ const VideoTransceiverInit = {
+ direction: 'sendrecv',
+ sendEncodings: []
+ };
+
+ if (this.options.simulecast && stream.getVideoTracks().length > 0) {
+ VideoTransceiverInit.sendEncodings = [{
+ rid: 'q',
+ active: true,
+ scaleResolutionDownBy: 4.0
+ }, {
+ rid: 'h',
+ active: true,
+ scaleResolutionDownBy: 2.0
+ }, {
+ rid: 'f',
+ active: true
+ }];
+ }
+
+ if (stream.getAudioTracks().length > 0) {
+ this.pc.addTransceiver(stream.getAudioTracks()[0], AudioTransceiverInit);
+ } else {
+ AudioTransceiverInit.direction = 'recvonly';
+ this.pc.addTransceiver('audio', AudioTransceiverInit);
+ }
+
+ if (stream.getVideoTracks().length > 0) {
+ this.pc.addTransceiver(stream.getVideoTracks()[0], VideoTransceiverInit);
+ } else {
+ VideoTransceiverInit.direction = 'recvonly';
+ this.pc.addTransceiver('video', VideoTransceiverInit);
+ }
+ /*
+ stream.getTracks().forEach((track,idx)=>{
+ debug.log(this.TAG,track);
+ this.pc.addTrack(track);
+ });
+ */
+
+
+ this.pc.createOffer().then(desc => {
+ log(this.TAG, 'offer:', desc.sdp);
+ this.pc.setLocalDescription(desc).then(() => {
+ axios({
+ method: 'post',
+ url: this.options.zlmsdpUrl,
+ responseType: 'json',
+ data: desc.sdp,
+ headers: {
+ 'Content-Type': 'text/plain;charset=utf-8'
+ }
+ }).then(response => {
+ let ret = response.data; //JSON.parse(response.data);
+
+ if (ret.code != 0) {
+ // mean failed for offer/anwser exchange
+ this.dispatch(Events$1.WEBRTC_OFFER_ANWSER_EXCHANGE_FAILED, ret);
+ return;
+ }
+
+ let anwser = {};
+ anwser.sdp = ret.sdp;
+ anwser.type = 'answer';
+ log(this.TAG, 'answer:', ret.sdp);
+ this.pc.setRemoteDescription(anwser).then(() => {
+ log(this.TAG, 'set remote sucess');
+ }).catch(e => {
+ error(this.TAG, e);
+ });
+ });
+ });
+ }).catch(e => {
+ error(this.TAG, e);
+ });
+ }).catch(e => {
+ error(this.TAG, e);
+ }); //const offerOptions = {};
+
+ /*
+ if (typeof this.pc.addTransceiver === 'function') {
+ // |direction| seems not working on Safari.
+ this.pc.addTransceiver('audio', { direction: 'recvonly' });
+ this.pc.addTransceiver('video', { direction: 'recvonly' });
+ } else {
+ offerOptions.offerToReceiveAudio = true;
+ offerOptions.offerToReceiveVideo = true;
+ }
+ */
+ }
+
+ _onIceCandidate(event) {
+ if (event.candidate) {
+ log('Remote ICE candidate: \n ' + event.candidate.candidate); // Send the candidate to the remote peer
+ }
+ }
+
+ _onTrack(event) {
+ if (this.options.element && event.streams && event.streams.length > 0) {
+ this.options.element.srcObject = event.streams[0];
+ this._remoteStream = event.streams[0];
+ this.dispatch(Events$1.WEBRTC_ON_REMOTE_STREAMS, event);
+ } else {
+ error('element pararm is failed');
+ }
+ }
+
+ _onIceCandidateError(event) {
+ this.dispatch(Events$1.WEBRTC_ICE_CANDIDATE_ERROR, event);
+ }
+
+ close() {
+ if (this.pc) {
+ this.pc.close();
+ this.pc = null;
+ }
+
+ if (this.options) {
+ this.options = null;
+ }
+
+ if (this._localStream) {
+ this._localStream.getTracks().forEach((track, idx) => {
+ track.stop();
+ });
+ }
+
+ if (this._remoteStream) {
+ this._remoteStream.getTracks().forEach((track, idx) => {
+ track.stop();
+ });
+ }
+ }
+
+ get remoteStream() {
+ return this._remoteStream;
+ }
+
+ get localStream() {
+ return this._localStream;
+ }
+
+ }
+
+ console.log('build date:', BUILD_DATE);
+ console.log('version:', VERSION);
+ const Events = Events$1;
+ const Media = media;
+ const Endpoint = RTCEndpoint;
+
+ exports.Endpoint = Endpoint;
+ exports.Events = Events;
+ exports.Media = Media;
+
+ Object.defineProperty(exports, '__esModule', { value: true });
+
+ return exports;
+
+}({}));
+//# sourceMappingURL=ZLMRTCClient.js.map
--
Gitblit v1.8.0