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React Native Janus Gateway
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/* | |
The MIT License (MIT) | |
Copyright (c) 2016 Meetecho | |
Permission is hereby granted, free of charge, to any person obtaining | |
a copy of this software and associated documentation files (the "Software"), | |
to deal in the Software without restriction, including without limitation | |
the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
and/or sell copies of the Software, and to permit persons to whom the | |
Software is furnished to do so, subject to the following conditions: | |
The above copyright notice and this permission notice shall be included | |
in all copies or substantial portions of the Software. | |
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS | |
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR | |
OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, | |
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | |
OTHER DEALINGS IN THE SOFTWARE. | |
*/ | |
import { | |
RTCPeerConnection, | |
RTCSessionDescription, | |
RTCRtpSender, | |
mediaDevices, | |
} from 'react-native-webrtc'; | |
let adapter = { | |
browserDetails: { | |
browser: 'react-native', | |
}, | |
}; | |
let globalTrack; | |
// List of sessions | |
Janus.sessions = {}; | |
Janus.isExtensionEnabled = function() { | |
if(mediaDevices && mediaDevices.getDisplayMedia) { | |
// No need for the extension, getDisplayMedia is supported | |
return true; | |
} | |
if(window.navigator.userAgent.match('Chrome')) { | |
var chromever = parseInt(window.navigator.userAgent.match(/Chrome\/(.*) /)[1], 10); | |
var maxver = 33; | |
if(window.navigator.userAgent.match('Linux')) | |
maxver = 35; // "known" crash in chrome 34 and 35 on linux | |
if(chromever >= 26 && chromever <= maxver) { | |
// Older versions of Chrome don't support this extension-based approach, so lie | |
return true; | |
} | |
return Janus.extension.isInstalled(); | |
} else { | |
// Firefox of others, no need for the extension (but this doesn't mean it will work) | |
return true; | |
} | |
}; | |
var defaultExtension = { | |
// Screensharing Chrome Extension ID | |
extensionId: 'hapfgfdkleiggjjpfpenajgdnfckjpaj', | |
isInstalled: function() { return document.querySelector('#janus-extension-installed') !== null; }, | |
getScreen: function (callback) { | |
var pending = window.setTimeout(function () { | |
var error = new Error('NavigatorUserMediaError'); | |
error.name = 'The required Chrome extension is not installed: click <a href="#">here</a> to install it. (NOTE: this will need you to refresh the page)'; | |
return callback(error); | |
}, 1000); | |
this.cache[pending] = callback; | |
window.postMessage({ type: 'janusGetScreen', id: pending }, '*'); | |
}, | |
init: function () { | |
var cache = {}; | |
this.cache = cache; | |
// Wait for events from the Chrome Extension | |
/* window.addEventListener('message', function (event) { | |
if(event.origin != window.location.origin) | |
return; | |
if(event.data.type == 'janusGotScreen' && cache[event.data.id]) { | |
var callback = cache[event.data.id]; | |
delete cache[event.data.id]; | |
if (event.data.sourceId === '') { | |
// user canceled | |
var error = new Error('NavigatorUserMediaError'); | |
error.name = 'You cancelled the request for permission, giving up...'; | |
callback(error); | |
} else { | |
callback(null, event.data.sourceId); | |
} | |
} else if (event.data.type == 'janusGetScreenPending') { | |
console.log('clearing ', event.data.id); | |
window.clearTimeout(event.data.id); | |
} | |
});*/ | |
} | |
}; | |
Janus.useDefaultDependencies = function (deps) { | |
var f = (deps && deps.fetch) || fetch; | |
var p = (deps && deps.Promise) || Promise; | |
var socketCls = (deps && deps.WebSocket) || WebSocket; | |
return { | |
newWebSocket: function(server, proto) { return new socketCls(server, proto); }, | |
extension: (deps && deps.extension) || defaultExtension, | |
isArray: function(arr) { return Array.isArray(arr); }, | |
webRTCAdapter: (deps && deps.adapter) || adapter, | |
httpAPICall: function(url, options) { | |
var fetchOptions = { | |
method: options.verb, | |
headers: { | |
'Accept': 'application/json, text/plain, */*' | |
}, | |
cache: 'no-cache' | |
}; | |
if(options.verb === "POST") { | |
fetchOptions.headers['Content-Type'] = 'application/json'; | |
} | |
if(options.withCredentials !== undefined) { | |
fetchOptions.credentials = options.withCredentials === true ? 'include' : (options.withCredentials ? options.withCredentials : 'omit'); | |
} | |
if(options.body) { | |
fetchOptions.body = JSON.stringify(options.body); | |
} | |
var fetching = f(url, fetchOptions).catch(function(error) { | |
return p.reject({message: 'Probably a network error, is the server down?', error: error}); | |
}); | |
/* | |
* fetch() does not natively support timeouts. | |
* Work around this by starting a timeout manually, and racing it agains the fetch() to see which thing resolves first. | |
*/ | |
if(options.timeout) { | |
var timeout = new p(function(resolve, reject) { | |
var timerId = setTimeout(function() { | |
clearTimeout(timerId); | |
return reject({message: 'Request timed out', timeout: options.timeout}); | |
}, options.timeout); | |
}); | |
fetching = p.race([fetching, timeout]); | |
} | |
fetching.then(function(response) { | |
if(response.ok) { | |
if(typeof(options.success) === typeof(Janus.noop)) { | |
return response.json().then(function(parsed) { | |
options.success(parsed); | |
}).catch(function(error) { | |
return p.reject({message: 'Failed to parse response body', error: error, response: response}); | |
}); | |
} | |
} | |
else { | |
return p.reject({message: 'API call failed', response: response}); | |
} | |
}).catch(function(error) { | |
if(typeof(options.error) === typeof(Janus.noop)) { | |
options.error(error.message || '<< internal error >>', error); | |
} | |
}); | |
return fetching; | |
} | |
} | |
}; | |
Janus.noop = function() {}; | |
Janus.dataChanDefaultLabel = "JanusDataChannel"; | |
// Note: in the future we may want to change this, e.g., as was | |
// attempted in https://github.com/meetecho/janus-gateway/issues/1670 | |
Janus.endOfCandidates = null; | |
// Stop all tracks from a given stream | |
Janus.stopAllTracks = function(stream) { | |
try { | |
// Try a MediaStreamTrack.stop() for each track | |
var tracks = stream.getTracks(); | |
for(var mst of tracks) { | |
Janus.log(mst); | |
if(mst) { | |
mst.stop(); | |
} | |
} | |
} catch(e) { | |
// Do nothing if this fails | |
} | |
} | |
// Initialization | |
Janus.init = function(options) { | |
options = options || {}; | |
options.callback = (typeof options.callback == "function") ? options.callback : Janus.noop; | |
if(Janus.initDone) { | |
// Already initialized | |
options.callback(); | |
} else { | |
if(typeof console == "undefined" || typeof console.log == "undefined") { | |
console = { log: function() {} }; | |
} | |
// Console logging (all debugging disabled by default) | |
Janus.trace = Janus.noop; | |
Janus.debug = Janus.noop; | |
Janus.vdebug = Janus.noop; | |
Janus.log = Janus.noop; | |
Janus.warn = Janus.noop; | |
Janus.error = Janus.noop; | |
if(options.debug === true || options.debug === "all") { | |
// Enable all debugging levels | |
Janus.trace = console.trace.bind(console); | |
Janus.debug = console.debug.bind(console); | |
Janus.vdebug = console.debug.bind(console); | |
Janus.log = console.log.bind(console); | |
Janus.warn = console.warn.bind(console); | |
Janus.error = console.error.bind(console); | |
} else if(Array.isArray(options.debug)) { | |
for(var d of options.debug) { | |
switch(d) { | |
case "trace": | |
Janus.trace = console.trace.bind(console); | |
break; | |
case "debug": | |
Janus.debug = console.debug.bind(console); | |
break; | |
case "vdebug": | |
Janus.vdebug = console.debug.bind(console); | |
break; | |
case "log": | |
Janus.log = console.log.bind(console); | |
break; | |
case "warn": | |
Janus.warn = console.warn.bind(console); | |
break; | |
case "error": | |
Janus.error = console.error.bind(console); | |
break; | |
default: | |
console.error("Unknown debugging option '" + d + "' (supported: 'trace', 'debug', 'vdebug', 'log', warn', 'error')"); | |
break; | |
} | |
} | |
} | |
Janus.log("Initializing library"); | |
//var usedDependencies = options.dependencies || Janus.useDefaultDependencies(); | |
var usedDependencies = Janus.useDefaultDependencies(); | |
Janus.isArray = usedDependencies.isArray; | |
Janus.webRTCAdapter = usedDependencies.webRTCAdapter; | |
Janus.httpAPICall = usedDependencies.httpAPICall; | |
Janus.newWebSocket = usedDependencies.newWebSocket; | |
Janus.extension = usedDependencies.extension; | |
Janus.extension.init(); | |
// Helper method to enumerate devices | |
Janus.listDevices = function(callback, config) { | |
callback = (typeof callback == "function") ? callback : Janus.noop; | |
if (config == null) config = { audio: true, video: true }; | |
if(Janus.isGetUserMediaAvailable()) { | |
mediaDevices.getUserMedia(config) | |
.then(function(stream) { | |
mediaDevices.enumerateDevices().then(function(devices) { | |
Janus.debug(devices); | |
callback(devices); | |
// Get rid of the now useless stream | |
Janus.stopAllTracks(stream) | |
}); | |
}) | |
.catch(function(err) { | |
Janus.error(err); | |
callback([]); | |
}); | |
} else { | |
Janus.warn("mediaDevices unavailable"); | |
callback([]); | |
} | |
}; | |
// Helper methods to attach/reattach a stream to a video element (previously part of adapter.js) | |
Janus.attachMediaStream = function(element, stream) { | |
try { | |
element.srcObject = stream; | |
} catch (e) { | |
try { | |
element.src = URL.createObjectURL(stream); | |
} catch (e) { | |
Janus.error("Error attaching stream to element"); | |
} | |
} | |
}; | |
Janus.reattachMediaStream = function(to, from) { | |
try { | |
to.srcObject = from.srcObject; | |
} catch (e) { | |
try { | |
to.src = from.src; | |
} catch (e) { | |
Janus.error("Error reattaching stream to element"); | |
} | |
} | |
}; | |
// Detect tab close: make sure we don't loose existing onbeforeunload handlers | |
// (note: for iOS we need to subscribe to a different event, 'pagehide', see | |
// https://gist.github.com/thehunmonkgroup/6bee8941a49b86be31a787fe8f4b8cfe) | |
var iOS = ['iPad', 'iPhone', 'iPod'].indexOf(navigator.platform) >= 0; | |
var eventName = iOS ? 'pagehide' : 'beforeunload'; | |
var oldOBF = window["on" + eventName]; | |
/* window.addEventListener(eventName, function(event) { | |
Janus.log("Closing window"); | |
for(var s in Janus.sessions) { | |
if(Janus.sessions[s] && Janus.sessions[s].destroyOnUnload) { | |
Janus.log("Destroying session " + s); | |
Janus.sessions[s].destroy({unload: true, notifyDestroyed: false}); | |
} | |
} | |
if(oldOBF && typeof oldOBF == "function") { | |
oldOBF(); | |
} | |
});*/ | |
// If this is a Safari Technology Preview, check if VP8 is supported | |
Janus.safariVp8 = false; | |
// Check if this browser supports Unified Plan and transceivers | |
// Based on https://codepen.io/anon/pen/ZqLwWV?editors=0010 | |
Janus.unifiedPlan = false; | |
if(!window.RTCRtpTransceiver || !('currentDirection' in RTCRtpTransceiver.prototype)) { | |
// Safari supports addTransceiver() but not Unified Plan when | |
// currentDirection is not defined (see codepen above). | |
Janus.unifiedPlan = false; | |
} else { | |
// Check if addTransceiver() throws an exception | |
var tempPc = new RTCPeerConnection(); | |
try { | |
tempPc.addTransceiver('audio'); | |
Janus.unifiedPlan = true; | |
} catch (e) {} | |
tempPc.close(); | |
} | |
Janus.initDone = true; | |
options.callback(); | |
} | |
}; | |
// Helper method to check whether WebRTC is supported by this browser | |
Janus.isWebrtcSupported = function() { | |
return true; | |
}; | |
// Helper method to check whether devices can be accessed by this browser (e.g., not possible via plain HTTP) | |
Janus.isGetUserMediaAvailable = function() { | |
return mediaDevices && mediaDevices.getUserMedia; | |
}; | |
// Helper method to create random identifiers (e.g., transaction) | |
Janus.randomString = function(len) { | |
var charSet = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789'; | |
var randomString = ''; | |
for (var i = 0; i < len; i++) { | |
var randomPoz = Math.floor(Math.random() * charSet.length); | |
randomString += charSet.substring(randomPoz,randomPoz+1); | |
} | |
return randomString; | |
}; | |
function Janus(gatewayCallbacks) { | |
gatewayCallbacks = gatewayCallbacks || {}; | |
gatewayCallbacks.success = (typeof gatewayCallbacks.success == "function") ? gatewayCallbacks.success : Janus.noop; | |
gatewayCallbacks.error = (typeof gatewayCallbacks.error == "function") ? gatewayCallbacks.error : Janus.noop; | |
gatewayCallbacks.destroyed = (typeof gatewayCallbacks.destroyed == "function") ? gatewayCallbacks.destroyed : Janus.noop; | |
if(!Janus.initDone) { | |
gatewayCallbacks.error("Library not initialized"); | |
return {}; | |
} | |
if(!Janus.isWebrtcSupported()) { | |
gatewayCallbacks.error("WebRTC not supported by this browser"); | |
return {}; | |
} | |
Janus.log("Library initialized: " + Janus.initDone); | |
if(!gatewayCallbacks.server) { | |
gatewayCallbacks.error("Invalid server url"); | |
return {}; | |
} | |
var websockets = false; | |
var ws = null; | |
var wsHandlers = {}; | |
var wsKeepaliveTimeoutId = null; | |
var servers = null; | |
var serversIndex = 0; | |
var server = gatewayCallbacks.server; | |
if(Janus.isArray(server)) { | |
Janus.log("Multiple servers provided (" + server.length + "), will use the first that works"); | |
server = null; | |
servers = gatewayCallbacks.server; | |
Janus.debug(servers); | |
} else { | |
if(server.indexOf("ws") === 0) { | |
websockets = true; | |
Janus.log("Using WebSockets to contact Janus: " + server); | |
} else { | |
websockets = false; | |
Janus.log("Using REST API to contact Janus: " + server); | |
} | |
} | |
var iceServers = gatewayCallbacks.iceServers || [{urls: "stun:stun.l.google.com:19302"}]; | |
var iceTransportPolicy = gatewayCallbacks.iceTransportPolicy; | |
var bundlePolicy = gatewayCallbacks.bundlePolicy; | |
// Whether IPv6 candidates should be gathered | |
var ipv6Support = (gatewayCallbacks.ipv6 === true); | |
// Whether we should enable the withCredentials flag for XHR requests | |
var withCredentials = false; | |
if(gatewayCallbacks.withCredentials !== undefined && gatewayCallbacks.withCredentials !== null) | |
withCredentials = gatewayCallbacks.withCredentials === true; | |
// Optional max events | |
var maxev = 10; | |
if(gatewayCallbacks.max_poll_events !== undefined && gatewayCallbacks.max_poll_events !== null) | |
maxev = gatewayCallbacks.max_poll_events; | |
if(maxev < 1) | |
maxev = 1; | |
// Token to use (only if the token based authentication mechanism is enabled) | |
var token = null; | |
if(gatewayCallbacks.token !== undefined && gatewayCallbacks.token !== null) | |
token = gatewayCallbacks.token; | |
// API secret to use (only if the shared API secret is enabled) | |
var apisecret = null; | |
if(gatewayCallbacks.apisecret !== undefined && gatewayCallbacks.apisecret !== null) | |
apisecret = gatewayCallbacks.apisecret; | |
// Whether we should destroy this session when onbeforeunload is called | |
this.destroyOnUnload = true; | |
if(gatewayCallbacks.destroyOnUnload !== undefined && gatewayCallbacks.destroyOnUnload !== null) | |
this.destroyOnUnload = (gatewayCallbacks.destroyOnUnload === true); | |
// Some timeout-related values | |
var keepAlivePeriod = 25000; | |
if(gatewayCallbacks.keepAlivePeriod !== undefined && gatewayCallbacks.keepAlivePeriod !== null) | |
keepAlivePeriod = gatewayCallbacks.keepAlivePeriod; | |
if(isNaN(keepAlivePeriod)) | |
keepAlivePeriod = 25000; | |
var longPollTimeout = 60000; | |
if(gatewayCallbacks.longPollTimeout !== undefined && gatewayCallbacks.longPollTimeout !== null) | |
longPollTimeout = gatewayCallbacks.longPollTimeout; | |
if(isNaN(longPollTimeout)) | |
longPollTimeout = 60000; | |
// overrides for default maxBitrate values for simulcasting | |
function getMaxBitrates(simulcastMaxBitrates) { | |
var maxBitrates = { | |
high: 900000, | |
medium: 300000, | |
low: 100000, | |
}; | |
if (simulcastMaxBitrates !== undefined && simulcastMaxBitrates !== null) { | |
if (simulcastMaxBitrates.high) | |
maxBitrates.high = simulcastMaxBitrates.high; | |
if (simulcastMaxBitrates.medium) | |
maxBitrates.medium = simulcastMaxBitrates.medium; | |
if (simulcastMaxBitrates.low) | |
maxBitrates.low = simulcastMaxBitrates.low; | |
} | |
return maxBitrates; | |
} | |
var connected = false; | |
var sessionId = null; | |
var pluginHandles = {}; | |
var that = this; | |
var retries = 0; | |
var transactions = {}; | |
createSession(gatewayCallbacks); | |
// Public methods | |
this.getServer = function() { return server; }; | |
this.isConnected = function() { return connected; }; | |
this.reconnect = function(callbacks) { | |
callbacks = callbacks || {}; | |
callbacks.success = (typeof callbacks.success == "function") ? callbacks.success : Janus.noop; | |
callbacks.error = (typeof callbacks.error == "function") ? callbacks.error : Janus.noop; | |
callbacks["reconnect"] = true; | |
createSession(callbacks); | |
}; | |
this.getSessionId = function() { return sessionId; }; | |
this.getInfo = function(callbacks) { getInfo(callbacks); }; | |
this.destroy = function(callbacks) { destroySession(callbacks); }; | |
this.attach = function(callbacks) { createHandle(callbacks); }; | |
function eventHandler() { | |
if(sessionId == null) | |
return; | |
Janus.debug('Long poll...'); | |
if(!connected) { | |
Janus.warn("Is the server down? (connected=false)"); | |
return; | |
} | |
var longpoll = server + "/" + sessionId + "?rid=" + new Date().getTime(); | |
if(maxev) | |
longpoll = longpoll + "&maxev=" + maxev; | |
if(token) | |
longpoll = longpoll + "&token=" + encodeURIComponent(token); | |
if(apisecret) | |
longpoll = longpoll + "&apisecret=" + encodeURIComponent(apisecret); | |
Janus.httpAPICall(longpoll, { | |
verb: 'GET', | |
withCredentials: withCredentials, | |
success: handleEvent, | |
timeout: longPollTimeout, | |
error: function(textStatus, errorThrown) { | |
Janus.error(textStatus + ":", errorThrown); | |
retries++; | |
if(retries > 3) { | |
// Did we just lose the server? :-( | |
connected = false; | |
gatewayCallbacks.error("Lost connection to the server (is it down?)"); | |
return; | |
} | |
eventHandler(); | |
} | |
}); | |
} | |
// Private event handler: this will trigger plugin callbacks, if set | |
function handleEvent(json, skipTimeout) { | |
retries = 0; | |
if(!websockets && sessionId !== undefined && sessionId !== null && skipTimeout !== true) | |
eventHandler(); | |
if(!websockets && Janus.isArray(json)) { | |
// We got an array: it means we passed a maxev > 1, iterate on all objects | |
for(var i=0; i<json.length; i++) { | |
handleEvent(json[i], true); | |
} | |
return; | |
} | |
if(json["janus"] === "keepalive") { | |
// Nothing happened | |
Janus.vdebug("Got a keepalive on session " + sessionId); | |
return; | |
} else if(json["janus"] === "server_info") { | |
// Just info on the Janus instance | |
Janus.debug("Got info on the Janus instance"); | |
Janus.debug(json); | |
var transaction = json["transaction"]; | |
if(transaction) { | |
var reportSuccess = transactions[transaction]; | |
if(reportSuccess) | |
reportSuccess(json); | |
delete transactions[transaction]; | |
} | |
return; | |
} else if(json["janus"] === "ack") { | |
// Just an ack, we can probably ignore | |
Janus.debug("Got an ack on session " + sessionId); | |
Janus.debug(json); | |
var transaction = json["transaction"]; | |
if(transaction) { | |
var reportSuccess = transactions[transaction]; | |
if(reportSuccess) | |
reportSuccess(json); | |
delete transactions[transaction]; | |
} | |
return; | |
} else if(json["janus"] === "success") { | |
// Success! | |
Janus.debug("Got a success on session " + sessionId); | |
Janus.debug(json); | |
var transaction = json["transaction"]; | |
if(transaction) { | |
var reportSuccess = transactions[transaction]; | |
if(reportSuccess) | |
reportSuccess(json); | |
delete transactions[transaction]; | |
} | |
return; | |
} else if(json["janus"] === "trickle") { | |
// We got a trickle candidate from Janus | |
var sender = json["sender"]; | |
if(!sender) { | |
Janus.warn("Missing sender..."); | |
return; | |
} | |
var pluginHandle = pluginHandles[sender]; | |
if(!pluginHandle) { | |
Janus.debug("This handle is not attached to this session"); | |
return; | |
} | |
var candidate = json["candidate"]; | |
Janus.debug("Got a trickled candidate on session " + sessionId); | |
Janus.debug(candidate); | |
var config = pluginHandle.webrtcStuff; | |
if(config.pc && config.remoteSdp) { | |
// Add candidate right now | |
Janus.debug("Adding remote candidate:", candidate); | |
if(!candidate || candidate.completed === true) { | |
// end-of-candidates | |
config.pc.addIceCandidate(Janus.endOfCandidates); | |
} else { | |
// New candidate | |
config.pc.addIceCandidate(candidate); | |
} | |
} else { | |
// We didn't do setRemoteDescription (trickle got here before the offer?) | |
Janus.debug("We didn't do setRemoteDescription (trickle got here before the offer?), caching candidate"); | |
if(!config.candidates) | |
config.candidates = []; | |
config.candidates.push(candidate); | |
Janus.debug(config.candidates); | |
} | |
} else if(json["janus"] === "webrtcup") { | |
// The PeerConnection with the server is up! Notify this | |
Janus.debug("Got a webrtcup event on session " + sessionId); | |
Janus.debug(json); | |
var sender = json["sender"]; | |
if(!sender) { | |
Janus.warn("Missing sender..."); | |
return; | |
} | |
var pluginHandle = pluginHandles[sender]; | |
if(!pluginHandle) { | |
Janus.debug("This handle is not attached to this session"); | |
return; | |
} | |
pluginHandle.webrtcState(true); | |
return; | |
} else if(json["janus"] === "hangup") { | |
console.log("HANNG UP => ", json); | |
// A plugin asked the core to hangup a PeerConnection on one of our handles | |
Janus.debug("Got a hangup event on session " + sessionId); | |
Janus.debug(json); | |
console.log("HANNG UP"); | |
var sender = json["sender"]; | |
if(!sender) { | |
Janus.warn("Missing sender..."); | |
return; | |
} | |
var pluginHandle = pluginHandles[sender]; | |
if(!pluginHandle) { | |
Janus.debug("This handle is not attached to this session"); | |
return; | |
} | |
pluginHandle.webrtcState(false, json["reason"]); | |
pluginHandle.hangup(); | |
} else if(json["janus"] === "detached") { | |
// A plugin asked the core to detach one of our handles | |
Janus.debug("Got a detached event on session " + sessionId); | |
Janus.debug(json); | |
var sender = json["sender"]; | |
if(!sender) { | |
Janus.warn("Missing sender..."); | |
return; | |
} | |
var pluginHandle = pluginHandles[sender]; | |
if(!pluginHandle) { | |
// Don't warn here because destroyHandle causes this situation. | |
return; | |
} | |
pluginHandle.detached = true; | |
pluginHandle.ondetached(); | |
pluginHandle.detach(); | |
} else if(json["janus"] === "media") { | |
// Media started/stopped flowing | |
Janus.debug("Got a media event on session " + sessionId); | |
Janus.debug(json); | |
var sender = json["sender"]; | |
if(!sender) { | |
Janus.warn("Missing sender..."); | |
return; | |
} | |
var pluginHandle = pluginHandles[sender]; | |
if(!pluginHandle) { | |
Janus.debug("This handle is not attached to this session"); | |
return; | |
} | |
pluginHandle.mediaState(json["type"], json["receiving"]); | |
} else if(json["janus"] === "slowlink") { | |
Janus.debug("Got a slowlink event on session " + sessionId); | |
Janus.debug(json); | |
// Trouble uplink or downlink | |
var sender = json["sender"]; | |
if(!sender) { | |
Janus.warn("Missing sender..."); | |
return; | |
} | |
var pluginHandle = pluginHandles[sender]; | |
if(!pluginHandle) { | |
Janus.debug("This handle is not attached to this session"); | |
return; | |
} | |
pluginHandle.slowLink(json["uplink"], json["lost"]); | |
} else if(json["janus"] === "error") { | |
// Oops, something wrong happened | |
Janus.error("Ooops: " + json["error"].code + " " + json["error"].reason); // FIXME | |
Janus.debug(json); | |
var transaction = json["transaction"]; | |
if(transaction) { | |
var reportSuccess = transactions[transaction]; | |
if(reportSuccess) { | |
reportSuccess(json); | |
} | |
delete transactions[transaction]; | |
} | |
return; | |
} else if(json["janus"] === "event") { | |
Janus.debug("Got a plugin event on session " + sessionId); | |
Janus.debug(json); | |
var sender = json["sender"]; | |
if(!sender) { | |
Janus.warn("Missing sender..."); | |
return; | |
} | |
var plugindata = json["plugindata"]; | |
if(!plugindata) { | |
Janus.warn("Missing plugindata..."); | |
return; | |
} | |
Janus.debug(" -- Event is coming from " + sender + " (" + plugindata["plugin"] + ")"); | |
var data = plugindata["data"]; | |
Janus.debug(data); | |
var pluginHandle = pluginHandles[sender]; | |
if(!pluginHandle) { | |
Janus.warn("This handle is not attached to this session"); | |
return; | |
} | |
var jsep = json["jsep"]; | |
if(jsep) { | |
Janus.debug("Handling SDP as well..."); | |
Janus.debug(jsep); | |
} | |
var callback = pluginHandle.onmessage; | |
if(callback) { | |
Janus.debug("Notifying application..."); | |
// Send to callback specified when attaching plugin handle | |
callback(data, jsep); | |
} else { | |
// Send to generic callback (?) | |
Janus.debug("No provided notification callback"); | |
} | |
} else if(json["janus"] === "timeout") { | |
Janus.error("Timeout on session " + sessionId); | |
Janus.debug(json); | |
if (websockets) { | |
ws.close(3504, "Gateway timeout"); | |
} | |
return; | |
} else { | |
Janus.warn("Unknown message/event '" + json["janus"] + "' on session " + sessionId); | |
Janus.debug(json); | |
} | |
} | |
// Private helper to send keep-alive messages on WebSockets | |
function keepAlive() { | |
if(!server || !websockets || !connected) | |
return; | |
wsKeepaliveTimeoutId = setTimeout(keepAlive, keepAlivePeriod); | |
var request = { "janus": "keepalive", "session_id": sessionId, "transaction": Janus.randomString(12) }; | |
if(token) | |
request["token"] = token; | |
if(apisecret) | |
request["apisecret"] = apisecret; | |
ws.send(JSON.stringify(request)); | |
} | |
// Private method to create a session | |
function createSession(callbacks) { | |
var transaction = Janus.randomString(12); | |
var request = { "janus": "create", "transaction": transaction }; | |
if(callbacks["reconnect"]) { | |
// We're reconnecting, claim the session | |
connected = false; | |
request["janus"] = "claim"; | |
request["session_id"] = sessionId; | |
// If we were using websockets, ignore the old connection | |
if(ws) { | |
ws.onopen = null; | |
ws.onerror = null; | |
ws.onclose = null; | |
if(wsKeepaliveTimeoutId) { | |
clearTimeout(wsKeepaliveTimeoutId); | |
wsKeepaliveTimeoutId = null; | |
} | |
} | |
} | |
if(token) | |
request["token"] = token; | |
if(apisecret) | |
request["apisecret"] = apisecret; | |
if(!server && Janus.isArray(servers)) { | |
// We still need to find a working server from the list we were given | |
server = servers[serversIndex]; | |
if(server.indexOf("ws") === 0) { | |
websockets = true; | |
Janus.log("Server #" + (serversIndex+1) + ": trying WebSockets to contact Janus (" + server + ")"); | |
} else { | |
websockets = false; | |
Janus.log("Server #" + (serversIndex+1) + ": trying REST API to contact Janus (" + server + ")"); | |
} | |
} | |
if(websockets) { | |
ws = Janus.newWebSocket(server, 'janus-protocol'); | |
wsHandlers = { | |
'error': function() { | |
Janus.error("Error connecting to the Janus WebSockets server... " + server); | |
if (Janus.isArray(servers) && !callbacks["reconnect"]) { | |
serversIndex++; | |
if (serversIndex === servers.length) { | |
// We tried all the servers the user gave us and they all failed | |
callbacks.error("Error connecting to any of the provided Janus servers: Is the server down?"); | |
return; | |
} | |
// Let's try the next server | |
server = null; | |
setTimeout(function() { | |
createSession(callbacks); | |
}, 200); | |
return; | |
} | |
callbacks.error("Error connecting to the Janus WebSockets server: Is the server down?"); | |
}, | |
'open': function() { | |
// We need to be notified about the success | |
transactions[transaction] = function(json) { | |
Janus.debug(json); | |
if (json["janus"] !== "success") { | |
Janus.error("Ooops: " + json["error"].code + " " + json["error"].reason); // FIXME | |
callbacks.error(json["error"].reason); | |
return; | |
} | |
wsKeepaliveTimeoutId = setTimeout(keepAlive, keepAlivePeriod); | |
connected = true; | |
sessionId = json["session_id"] ? json["session_id"] : json.data["id"]; | |
if(callbacks["reconnect"]) { | |
Janus.log("Claimed session: " + sessionId); | |
} else { | |
Janus.log("Created session: " + sessionId); | |
} | |
Janus.sessions[sessionId] = that; | |
callbacks.success(); | |
}; | |
ws.send(JSON.stringify(request)); | |
}, | |
'message': function(event) { | |
handleEvent(JSON.parse(event.data)); | |
}, | |
'close': function() { | |
if (!server || !connected) { | |
return; | |
} | |
connected = false; | |
// FIXME What if this is called when the page is closed? | |
gatewayCallbacks.error("Lost connection to the server (is it down?)"); | |
} | |
}; | |
for(var eventName in wsHandlers) { | |
ws.addEventListener(eventName, wsHandlers[eventName]); | |
} | |
return; | |
} | |
Janus.httpAPICall(server, { | |
verb: 'POST', | |
withCredentials: withCredentials, | |
body: request, | |
success: function(json) { | |
Janus.debug(json); | |
if(json["janus"] !== "success") { | |
Janus.error("Ooops: " + json["error"].code + " " + json["error"].reason); // FIXME | |
callbacks.error(json["error"].reason); | |
return; | |
} | |
connected = true; | |
sessionId = json["session_id"] ? json["session_id"] : json.data["id"]; | |
if(callbacks["reconnect"]) { | |
Janus.log("Claimed session: " + sessionId); | |
} else { | |
Janus.log("Created session: " + sessionId); | |
} | |
Janus.sessions[sessionId] = that; | |
eventHandler(); | |
callbacks.success(); | |
}, | |
error: function(textStatus, errorThrown) { | |
Janus.error(textStatus + ":", errorThrown); // FIXME | |
if(Janus.isArray(servers) && !callbacks["reconnect"]) { | |
serversIndex++; | |
if(serversIndex === servers.length) { | |
// We tried all the servers the user gave us and they all failed | |
callbacks.error("Error connecting to any of the provided Janus servers: Is the server down?"); | |
return; | |
} | |
// Let's try the next server | |
server = null; | |
setTimeout(function() { createSession(callbacks); }, 200); | |
return; | |
} | |
if(errorThrown === "") | |
callbacks.error(textStatus + ": Is the server down?"); | |
else | |
callbacks.error(textStatus + ": " + errorThrown); | |
} | |
}); | |
} | |
// Private method to get info on the server | |
function getInfo(callbacks) { | |
callbacks = callbacks || {}; | |
// FIXME This method triggers a success even when we fail | |
callbacks.success = (typeof callbacks.success == "function") ? callbacks.success : Janus.noop; | |
callbacks.error = (typeof callbacks.error == "function") ? callbacks.error : Janus.noop; | |
Janus.log("Getting info on Janus instance"); | |
if(!connected) { | |
Janus.warn("Is the server down? (connected=false)"); | |
callbacks.error("Is the server down? (connected=false)"); | |
return; | |
} | |
// We just need to send an "info" request | |
var transaction = Janus.randomString(12); | |
var request = { "janus": "info", "transaction": transaction }; | |
if(token) | |
request["token"] = token; | |
if(apisecret) | |
request["apisecret"] = apisecret; | |
if(websockets) { | |
transactions[transaction] = function(json) { | |
Janus.log("Server info:"); | |
Janus.debug(json); | |
if(json["janus"] !== "server_info") { | |
Janus.error("Ooops: " + json["error"].code + " " + json["error"].reason); // FIXME | |
} | |
callbacks.success(json); | |
} | |
ws.send(JSON.stringify(request)); | |
return; | |
} | |
Janus.httpAPICall(server, { | |
verb: 'POST', | |
withCredentials: withCredentials, | |
body: request, | |
success: function(json) { | |
Janus.log("Server info:"); | |
Janus.debug(json); | |
if(json["janus"] !== "server_info") { | |
Janus.error("Ooops: " + json["error"].code + " " + json["error"].reason); // FIXME | |
} | |
callbacks.success(json); | |
}, | |
error: function(textStatus, errorThrown) { | |
Janus.error(textStatus + ":", errorThrown); // FIXME | |
if(errorThrown === "") | |
callbacks.error(textStatus + ": Is the server down?"); | |
else | |
callbacks.error(textStatus + ": " + errorThrown); | |
} | |
}); | |
} | |
// Private method to destroy a session | |
function destroySession(callbacks) { | |
callbacks = callbacks || {}; | |
// FIXME This method triggers a success even when we fail | |
callbacks.success = (typeof callbacks.success == "function") ? callbacks.success : Janus.noop; | |
callbacks.error = (typeof callbacks.error == "function") ? callbacks.error : Janus.noop; | |
var unload = (callbacks.unload === true); | |
var notifyDestroyed = true; | |
if(callbacks.notifyDestroyed !== undefined && callbacks.notifyDestroyed !== null) | |
notifyDestroyed = (callbacks.notifyDestroyed === true); | |
var cleanupHandles = (callbacks.cleanupHandles === true); | |
Janus.log("Destroying session " + sessionId + " (unload=" + unload + ")"); | |
if(!sessionId) { | |
Janus.warn("No session to destroy"); | |
callbacks.success(); | |
if(notifyDestroyed) | |
gatewayCallbacks.destroyed(); | |
return; | |
} | |
if(cleanupHandles) { | |
for(var handleId in pluginHandles) | |
destroyHandle(handleId, { noRequest: true }); | |
} | |
if(!connected) { | |
Janus.warn("Is the server down? (connected=false)"); | |
sessionId = null; | |
callbacks.success(); | |
return; | |
} | |
// No need to destroy all handles first, Janus will do that itself | |
var request = { "janus": "destroy", "transaction": Janus.randomString(12) }; | |
if(token) | |
request["token"] = token; | |
if(apisecret) | |
request["apisecret"] = apisecret; | |
if(unload) { | |
// We're unloading the page: use sendBeacon for HTTP instead, | |
// or just close the WebSocket connection if we're using that | |
if(websockets) { | |
ws.onclose = null; | |
ws.close(); | |
ws = null; | |
} else { | |
navigator.sendBeacon(server + "/" + sessionId, JSON.stringify(request)); | |
} | |
Janus.log("Destroyed session:"); | |
sessionId = null; | |
connected = false; | |
callbacks.success(); | |
if(notifyDestroyed) | |
gatewayCallbacks.destroyed(); | |
return; | |
} | |
if(websockets) { | |
request["session_id"] = sessionId; | |
var unbindWebSocket = function() { | |
for(var eventName in wsHandlers) { | |
ws.removeEventListener(eventName, wsHandlers[eventName]); | |
} | |
ws.removeEventListener('message', onUnbindMessage); | |
ws.removeEventListener('error', onUnbindError); | |
if(wsKeepaliveTimeoutId) { | |
clearTimeout(wsKeepaliveTimeoutId); | |
} | |
ws.close(); | |
}; | |
var onUnbindMessage = function(event){ | |
var data = JSON.parse(event.data); | |
if(data.session_id == request.session_id && data.transaction == request.transaction) { | |
unbindWebSocket(); | |
callbacks.success(); | |
if(notifyDestroyed) | |
gatewayCallbacks.destroyed(); | |
} | |
}; | |
var onUnbindError = function(event) { | |
unbindWebSocket(); | |
callbacks.error("Failed to destroy the server: Is the server down?"); | |
if(notifyDestroyed) | |
gatewayCallbacks.destroyed(); | |
}; | |
ws.addEventListener('message', onUnbindMessage); | |
ws.addEventListener('error', onUnbindError); | |
if (ws.readyState === 1) { | |
ws.send(JSON.stringify(request)); | |
} else { | |
onUnbindError(); | |
} | |
return; | |
} | |
Janus.httpAPICall(server + "/" + sessionId, { | |
verb: 'POST', | |
withCredentials: withCredentials, | |
body: request, | |
success: function(json) { | |
Janus.log("Destroyed session:"); | |
Janus.debug(json); | |
sessionId = null; | |
connected = false; | |
if(json["janus"] !== "success") { | |
Janus.error("Ooops: " + json["error"].code + " " + json["error"].reason); // FIXME | |
} | |
callbacks.success(); | |
if(notifyDestroyed) | |
gatewayCallbacks.destroyed(); | |
}, | |
error: function(textStatus, errorThrown) { | |
Janus.error(textStatus + ":", errorThrown); // FIXME | |
// Reset everything anyway | |
sessionId = null; | |
connected = false; | |
callbacks.success(); | |
if(notifyDestroyed) | |
gatewayCallbacks.destroyed(); | |
} | |
}); | |
} | |
// Private method to create a plugin handle | |
function createHandle(callbacks) { | |
callbacks = callbacks || {}; | |
callbacks.success = (typeof callbacks.success == "function") ? callbacks.success : Janus.noop; | |
callbacks.error = (typeof callbacks.error == "function") ? callbacks.error : Janus.noop; | |
callbacks.consentDialog = (typeof callbacks.consentDialog == "function") ? callbacks.consentDialog : Janus.noop; | |
callbacks.iceState = (typeof callbacks.iceState == "function") ? callbacks.iceState : Janus.noop; | |
callbacks.mediaState = (typeof callbacks.mediaState == "function") ? callbacks.mediaState : Janus.noop; | |
callbacks.webrtcState = (typeof callbacks.webrtcState == "function") ? callbacks.webrtcState : Janus.noop; | |
callbacks.slowLink = (typeof callbacks.slowLink == "function") ? callbacks.slowLink : Janus.noop; | |
callbacks.onmessage = (typeof callbacks.onmessage == "function") ? callbacks.onmessage : Janus.noop; | |
callbacks.onlocalstream = (typeof callbacks.onlocalstream == "function") ? callbacks.onlocalstream : Janus.noop; | |
callbacks.onremotestream = (typeof callbacks.onremotestream == "function") ? callbacks.onremotestream : Janus.noop; | |
callbacks.ondata = (typeof callbacks.ondata == "function") ? callbacks.ondata : Janus.noop; | |
callbacks.ondataopen = (typeof callbacks.ondataopen == "function") ? callbacks.ondataopen : Janus.noop; | |
callbacks.oncleanup = (typeof callbacks.oncleanup == "function") ? callbacks.oncleanup : Janus.noop; | |
callbacks.ondetached = (typeof callbacks.ondetached == "function") ? callbacks.ondetached : Janus.noop; | |
if(!connected) { | |
Janus.warn("Is the server down? (connected=false)"); | |
callbacks.error("Is the server down? (connected=false)"); | |
return; | |
} | |
var plugin = callbacks.plugin; | |
if(!plugin) { | |
Janus.error("Invalid plugin"); | |
callbacks.error("Invalid plugin"); | |
return; | |
} | |
var opaqueId = callbacks.opaqueId; | |
var handleToken = callbacks.token ? callbacks.token : token; | |
var transaction = Janus.randomString(12); | |
var request = { "janus": "attach", "plugin": plugin, "opaque_id": opaqueId, "transaction": transaction }; | |
if(handleToken) | |
request["token"] = handleToken; | |
if(apisecret) | |
request["apisecret"] = apisecret; | |
if(websockets) { | |
transactions[transaction] = function(json) { | |
Janus.debug(json); | |
if(json["janus"] !== "success") { | |
Janus.error("Ooops: " + json["error"].code + " " + json["error"].reason); // FIXME | |
callbacks.error("Ooops: " + json["error"].code + " " + json["error"].reason); | |
return; | |
} | |
var handleId = json.data["id"]; | |
Janus.log("Created handle: " + handleId); | |
var pluginHandle = | |
{ | |
session : that, | |
plugin : plugin, | |
id : handleId, | |
token : handleToken, | |
detached : false, | |
webrtcStuff : { | |
started : false, | |
myStream : null, | |
streamExternal : false, | |
remoteStream : null, | |
mySdp : null, | |
mediaConstraints : null, | |
pc : null, | |
dataChannel : {}, | |
dtmfSender : null, | |
trickle : true, | |
iceDone : false, | |
volume : { | |
value : null, | |
timer : null | |
}, | |
bitrate : { | |
value : null, | |
bsnow : null, | |
bsbefore : null, | |
tsnow : null, | |
tsbefore : null, | |
timer : null | |
} | |
}, | |
getId : function() { return handleId; }, | |
getPlugin : function() { return plugin; }, | |
getVolume : function() { return getVolume(handleId, true); }, | |
getRemoteVolume : function() { return getVolume(handleId, true); }, | |
getLocalVolume : function() { return getVolume(handleId, false); }, | |
isAudioMuted : function() { return isMuted(handleId, false); }, | |
muteAudio : function() { return mute(handleId, false, true); }, | |
unmuteAudio : function() { return mute(handleId, false, false); }, | |
isVideoMuted : function() { return isMuted(handleId, true); }, | |
muteVideo : function() { return mute(handleId, true, true); }, | |
unmuteVideo : function() { return mute(handleId, true, false); }, | |
getBitrate : function() { return getBitrate(handleId); }, | |
send : function(callbacks) { sendMessage(handleId, callbacks); }, | |
data : function(callbacks) { sendData(handleId, callbacks); }, | |
dtmf : function(callbacks) { sendDtmf(handleId, callbacks); }, | |
consentDialog : callbacks.consentDialog, | |
iceState : callbacks.iceState, | |
mediaState : callbacks.mediaState, | |
webrtcState : callbacks.webrtcState, | |
slowLink : callbacks.slowLink, | |
onmessage : callbacks.onmessage, | |
createOffer : function(callbacks) { prepareWebrtc(handleId, true, callbacks); }, | |
createAnswer : function(callbacks) { prepareWebrtc(handleId, false, callbacks); }, | |
handleRemoteJsep : function(callbacks) { prepareWebrtcPeer(handleId, callbacks); }, | |
onlocalstream : callbacks.onlocalstream, | |
onremotestream : callbacks.onremotestream, | |
ondata : callbacks.ondata, | |
ondataopen : callbacks.ondataopen, | |
oncleanup : callbacks.oncleanup, | |
ondetached : callbacks.ondetached, | |
hangup : function(sendRequest) { cleanupWebrtc(handleId, sendRequest === true); }, | |
detach : function(callbacks) { destroyHandle(handleId, callbacks); }, | |
soundMute: function(val) {soundMute(handleId, val)} | |
}; | |
pluginHandles[handleId] = pluginHandle; | |
callbacks.success(pluginHandle); | |
}; | |
request["session_id"] = sessionId; | |
ws.send(JSON.stringify(request)); | |
return; | |
} | |
Janus.httpAPICall(server + "/" + sessionId, { | |
verb: 'POST', | |
withCredentials: withCredentials, | |
body: request, | |
success: function(json) { | |
Janus.debug(json); | |
if(json["janus"] !== "success") { | |
Janus.error("Ooops: " + json["error"].code + " " + json["error"].reason); // FIXME | |
callbacks.error("Ooops: " + json["error"].code + " " + json["error"].reason); | |
return; | |
} | |
var handleId = json.data["id"]; | |
Janus.log("Created handle: " + handleId); | |
var pluginHandle = | |
{ | |
session : that, | |
plugin : plugin, | |
id : handleId, | |
token : handleToken, | |
detached : false, | |
webrtcStuff : { | |
started : false, | |
myStream : null, | |
streamExternal : false, | |
remoteStream : null, | |
mySdp : null, | |
mediaConstraints : null, | |
pc : null, | |
dataChannel : {}, | |
dtmfSender : null, | |
trickle : true, | |
iceDone : false, | |
volume : { | |
value : null, | |
timer : null | |
}, | |
bitrate : { | |
value : null, | |
bsnow : null, | |
bsbefore : null, | |
tsnow : null, | |
tsbefore : null, | |
timer : null | |
} | |
}, | |
getId : function() { return handleId; }, | |
getPlugin : function() { return plugin; }, | |
getVolume : function() { return getVolume(handleId, true); }, | |
getRemoteVolume : function() { return getVolume(handleId, true); }, | |
getLocalVolume : function() { return getVolume(handleId, false); }, | |
isAudioMuted : function() { return isMuted(handleId, false); }, | |
muteAudio : function() { return mute(handleId, false, true); }, | |
unmuteAudio : function() { return mute(handleId, false, false); }, | |
isVideoMuted : function() { return isMuted(handleId, true); }, | |
muteVideo : function() { return mute(handleId, true, true); }, | |
unmuteVideo : function() { return mute(handleId, true, false); }, | |
getBitrate : function() { return getBitrate(handleId); }, | |
send : function(callbacks) { sendMessage(handleId, callbacks); }, | |
data : function(callbacks) { sendData(handleId, callbacks); }, | |
dtmf : function(callbacks) { sendDtmf(handleId, callbacks); }, | |
consentDialog : callbacks.consentDialog, | |
iceState : callbacks.iceState, | |
mediaState : callbacks.mediaState, | |
webrtcState : callbacks.webrtcState, | |
slowLink : callbacks.slowLink, | |
onmessage : callbacks.onmessage, | |
createOffer : function(callbacks) { prepareWebrtc(handleId, true, callbacks); }, | |
createAnswer : function(callbacks) { prepareWebrtc(handleId, false, callbacks); }, | |
handleRemoteJsep : function(callbacks) { prepareWebrtcPeer(handleId, callbacks); }, | |
onlocalstream : callbacks.onlocalstream, | |
onremotestream : callbacks.onremotestream, | |
ondata : callbacks.ondata, | |
ondataopen : callbacks.ondataopen, | |
oncleanup : callbacks.oncleanup, | |
ondetached : callbacks.ondetached, | |
hangup : function(sendRequest) { cleanupWebrtc(handleId, sendRequest === true); }, | |
detach : function(callbacks) { destroyHandle(handleId, callbacks); }, | |
soundMute: function(val) {soundMute(handleId, val)} | |
} | |
pluginHandles[handleId] = pluginHandle; | |
callbacks.success(pluginHandle); | |
}, | |
error: function(textStatus, errorThrown) { | |
Janus.error(textStatus + ":", errorThrown); // FIXME | |
if(errorThrown === "") | |
callbacks.error(textStatus + ": Is the server down?"); | |
else | |
callbacks.error(textStatus + ": " + errorThrown); | |
} | |
}); | |
} | |
// Private method to send a message | |
function sendMessage(handleId, callbacks) { | |
callbacks = callbacks || {}; | |
callbacks.success = (typeof callbacks.success == "function") ? callbacks.success : Janus.noop; | |
callbacks.error = (typeof callbacks.error == "function") ? callbacks.error : Janus.noop; | |
if(!connected) { | |
Janus.warn("Is the server down? (connected=false)"); | |
callbacks.error("Is the server down? (connected=false)"); | |
return; | |
} | |
var pluginHandle = pluginHandles[handleId]; | |
if(!pluginHandle || !pluginHandle.webrtcStuff) { | |
Janus.warn("Invalid handle"); | |
callbacks.error("Invalid handle"); | |
return; | |
} | |
var message = callbacks.message; | |
var jsep = callbacks.jsep; | |
var transaction = Janus.randomString(12); | |
var request = { "janus": "message", "body": message, "transaction": transaction }; | |
if(pluginHandle.token) | |
request["token"] = pluginHandle.token; | |
if(apisecret) | |
request["apisecret"] = apisecret; | |
if(jsep) { | |
request.jsep = { | |
type: jsep.type, | |
sdp: jsep.sdp | |
}; | |
if(jsep.e2ee) | |
request.jsep.e2ee = true; | |
} | |
Janus.debug("Sending message to plugin (handle=" + handleId + "):"); | |
Janus.debug(request); | |
if(websockets) { | |
request["session_id"] = sessionId; | |
request["handle_id"] = handleId; | |
transactions[transaction] = function(json) { | |
Janus.debug("Message sent!"); | |
Janus.debug(json); | |
if(json["janus"] === "success") { | |
// We got a success, must have been a synchronous transaction | |
var plugindata = json["plugindata"]; | |
if(!plugindata) { | |
Janus.warn("Request succeeded, but missing plugindata..."); | |
callbacks.success(); | |
return; | |
} | |
Janus.log("Synchronous transaction successful (" + plugindata["plugin"] + ")"); | |
var data = plugindata["data"]; | |
Janus.debug(data); | |
callbacks.success(data); | |
return; | |
} else if(json["janus"] !== "ack") { | |
// Not a success and not an ack, must be an error | |
if(json["error"]) { | |
Janus.error("Ooops: " + json["error"].code + " " + json["error"].reason); // FIXME | |
callbacks.error(json["error"].code + " " + json["error"].reason); | |
} else { | |
Janus.error("Unknown error"); // FIXME | |
callbacks.error("Unknown error"); | |
} | |
return; | |
} | |
// If we got here, the plugin decided to handle the request asynchronously | |
callbacks.success(); | |
}; | |
ws.send(JSON.stringify(request)); | |
return; | |
} | |
Janus.httpAPICall(server + "/" + sessionId + "/" + handleId, { | |
verb: 'POST', | |
withCredentials: withCredentials, | |
body: request, | |
success: function(json) { | |
Janus.debug("Message sent!"); | |
Janus.debug(json); | |
if(json["janus"] === "success") { | |
// We got a success, must have been a synchronous transaction | |
var plugindata = json["plugindata"]; | |
if(!plugindata) { | |
Janus.warn("Request succeeded, but missing plugindata..."); | |
callbacks.success(); | |
return; | |
} | |
Janus.log("Synchronous transaction successful (" + plugindata["plugin"] + ")"); | |
var data = plugindata["data"]; | |
Janus.debug(data); | |
callbacks.success(data); | |
return; | |
} else if(json["janus"] !== "ack") { | |
// Not a success and not an ack, must be an error | |
if(json["error"]) { | |
Janus.error("Ooops: " + json["error"].code + " " + json["error"].reason); // FIXME | |
callbacks.error(json["error"].code + " " + json["error"].reason); | |
} else { | |
Janus.error("Unknown error"); // FIXME | |
callbacks.error("Unknown error"); | |
} | |
return; | |
} | |
// If we got here, the plugin decided to handle the request asynchronously | |
callbacks.success(); | |
}, | |
error: function(textStatus, errorThrown) { | |
Janus.error(textStatus + ":", errorThrown); // FIXME | |
callbacks.error(textStatus + ": " + errorThrown); | |
} | |
}); | |
} | |
// Private method to send a trickle candidate | |
function sendTrickleCandidate(handleId, candidate) { | |
if(!connected) { | |
Janus.warn("Is the server down? (connected=false)"); | |
return; | |
} | |
var pluginHandle = pluginHandles[handleId]; | |
if(!pluginHandle || !pluginHandle.webrtcStuff) { | |
Janus.warn("Invalid handle"); | |
return; | |
} | |
var request = { "janus": "trickle", "candidate": candidate, "transaction": Janus.randomString(12) }; | |
if(pluginHandle.token) | |
request["token"] = pluginHandle.token; | |
if(apisecret) | |
request["apisecret"] = apisecret; | |
Janus.vdebug("Sending trickle candidate (handle=" + handleId + "):"); | |
Janus.vdebug(request); | |
if(websockets) { | |
request["session_id"] = sessionId; | |
request["handle_id"] = handleId; | |
ws.send(JSON.stringify(request)); | |
return; | |
} | |
Janus.httpAPICall(server + "/" + sessionId + "/" + handleId, { | |
verb: 'POST', | |
withCredentials: withCredentials, | |
body: request, | |
success: function(json) { | |
Janus.vdebug("Candidate sent!"); | |
Janus.vdebug(json); | |
if(json["janus"] !== "ack") { | |
Janus.error("Ooops: " + json["error"].code + " " + json["error"].reason); // FIXME | |
return; | |
} | |
}, | |
error: function(textStatus, errorThrown) { | |
Janus.error(textStatus + ":", errorThrown); // FIXME | |
} | |
}); | |
} | |
// Private method to create a data channel | |
function createDataChannel(handleId, dclabel, dcprotocol, incoming, pendingData) { | |
var pluginHandle = pluginHandles[handleId]; | |
if(!pluginHandle || !pluginHandle.webrtcStuff) { | |
Janus.warn("Invalid handle"); | |
return; | |
} | |
var config = pluginHandle.webrtcStuff; | |
var onDataChannelMessage = function(event) { | |
Janus.log('Received message on data channel:', event); | |
var label = event.target.label; | |
pluginHandle.ondata(event.data, label); | |
}; | |
var onDataChannelStateChange = function(event) { | |
Janus.log('Received state change on data channel:', event); | |
var label = event.target.label; | |
var protocol = event.target.protocol; | |
var dcState = config.dataChannel[label] ? config.dataChannel[label].readyState : "null"; | |
Janus.log('State change on <' + label + '> data channel: ' + dcState); | |
if(dcState === 'open') { | |
// Any pending messages to send? | |
if(config.dataChannel[label].pending && config.dataChannel[label].pending.length > 0) { | |
Janus.log("Sending pending messages on <" + label + ">:", config.dataChannel[label].pending.length); | |
for(var data of config.dataChannel[label].pending) { | |
Janus.log("Sending data on data channel <" + label + ">"); | |
Janus.debug(data); | |
config.dataChannel[label].send(data); | |
} | |
config.dataChannel[label].pending = []; | |
} | |
// Notify the open data channel | |
pluginHandle.ondataopen(label, protocol); | |
} | |
}; | |
var onDataChannelError = function(error) { | |
Janus.error('Got error on data channel:', error); | |
// TODO | |
}; | |
if(!incoming) { | |
// FIXME Add options (ordered, maxRetransmits, etc.) | |
var dcoptions = { ordered: true }; | |
if(dcprotocol) | |
dcoptions.protocol = dcprotocol; | |
config.dataChannel[dclabel] = config.pc.createDataChannel(dclabel, dcoptions); | |
} else { | |
// The channel was created by Janus | |
config.dataChannel[dclabel] = incoming; | |
} | |
config.dataChannel[dclabel].onmessage = onDataChannelMessage; | |
config.dataChannel[dclabel].onopen = onDataChannelStateChange; | |
config.dataChannel[dclabel].onclose = onDataChannelStateChange; | |
config.dataChannel[dclabel].onerror = onDataChannelError; | |
config.dataChannel[dclabel].pending = []; | |
if(pendingData) | |
config.dataChannel[dclabel].pending.push(pendingData); | |
} | |
// Private method to send a data channel message | |
function sendData(handleId, callbacks) { | |
callbacks = callbacks || {}; | |
callbacks.success = (typeof callbacks.success == "function") ? callbacks.success : Janus.noop; | |
callbacks.error = (typeof callbacks.error == "function") ? callbacks.error : Janus.noop; | |
var pluginHandle = pluginHandles[handleId]; | |
if(!pluginHandle || !pluginHandle.webrtcStuff) { | |
Janus.warn("Invalid handle"); | |
callbacks.error("Invalid handle"); | |
return; | |
} | |
var config = pluginHandle.webrtcStuff; | |
var data = callbacks.text || callbacks.data; | |
if(!data) { | |
Janus.warn("Invalid data"); | |
callbacks.error("Invalid data"); | |
return; | |
} | |
var label = callbacks.label ? callbacks.label : Janus.dataChanDefaultLabel; | |
if(!config.dataChannel[label]) { | |
// Create new data channel and wait for it to open | |
createDataChannel(handleId, label, callbacks.protocol, false, data, callbacks.protocol); | |
callbacks.success(); | |
return; | |
} | |
if(config.dataChannel[label].readyState !== "open") { | |
config.dataChannel[label].pending.push(data); | |
callbacks.success(); | |
return; | |
} | |
Janus.log("Sending data on data channel <" + label + ">"); | |
Janus.debug(data); | |
config.dataChannel[label].send(data); | |
callbacks.success(); | |
} | |
// Private method to send a DTMF tone | |
function sendDtmf(handleId, callbacks) { | |
callbacks = callbacks || {}; | |
callbacks.success = (typeof callbacks.success == "function") ? callbacks.success : Janus.noop; | |
callbacks.error = (typeof callbacks.error == "function") ? callbacks.error : Janus.noop; | |
var pluginHandle = pluginHandles[handleId]; | |
if(!pluginHandle || !pluginHandle.webrtcStuff) { | |
Janus.warn("Invalid handle"); | |
callbacks.error("Invalid handle"); | |
return; | |
} | |
var config = pluginHandle.webrtcStuff; | |
if(!config.dtmfSender) { | |
// Create the DTMF sender the proper way, if possible | |
if(config.pc) { | |
var senders = config.pc.getSenders(); | |
var audioSender = senders.find(function(sender) { | |
return sender.track && sender.track.kind === 'audio'; | |
}); | |
if(!audioSender) { | |
Janus.warn("Invalid DTMF configuration (no audio track)"); | |
callbacks.error("Invalid DTMF configuration (no audio track)"); | |
return; | |
} | |
config.dtmfSender = audioSender.dtmf; | |
if(config.dtmfSender) { | |
Janus.log("Created DTMF Sender"); | |
config.dtmfSender.ontonechange = function(tone) { Janus.debug("Sent DTMF tone: " + tone.tone); }; | |
} | |
} | |
if(!config.dtmfSender) { | |
Janus.warn("Invalid DTMF configuration"); | |
callbacks.error("Invalid DTMF configuration"); | |
return; | |
} | |
} | |
var dtmf = callbacks.dtmf; | |
if(!dtmf) { | |
Janus.warn("Invalid DTMF parameters"); | |
callbacks.error("Invalid DTMF parameters"); | |
return; | |
} | |
var tones = dtmf.tones; | |
if(!tones) { | |
Janus.warn("Invalid DTMF string"); | |
callbacks.error("Invalid DTMF string"); | |
return; | |
} | |
var duration = (typeof dtmf.duration === 'number') ? dtmf.duration : 500; // We choose 500ms as the default duration for a tone | |
var gap = (typeof dtmf.gap === 'number') ? dtmf.gap : 50; // We choose 50ms as the default gap between tones | |
Janus.debug("Sending DTMF string " + tones + " (duration " + duration + "ms, gap " + gap + "ms)"); | |
config.dtmfSender.insertDTMF(tones, duration, gap); | |
callbacks.success(); | |
} | |
// Private method to destroy a plugin handle | |
function destroyHandle(handleId, callbacks) { | |
callbacks = callbacks || {}; | |
callbacks.success = (typeof callbacks.success == "function") ? callbacks.success : Janus.noop; | |
callbacks.error = (typeof callbacks.error == "function") ? callbacks.error : Janus.noop; | |
var noRequest = (callbacks.noRequest === true); | |
Janus.log("Destroying handle " + handleId + " (only-locally=" + noRequest + ")"); | |
cleanupWebrtc(handleId); | |
var pluginHandle = pluginHandles[handleId]; | |
if(!pluginHandle || pluginHandle.detached) { | |
// Plugin was already detached by Janus, calling detach again will return a handle not found error, so just exit here | |
delete pluginHandles[handleId]; | |
callbacks.success(); | |
return; | |
} | |
if(noRequest) { | |
// We're only removing the handle locally | |
delete pluginHandles[handleId]; | |
callbacks.success(); | |
return; | |
} | |
if(!connected) { | |
Janus.warn("Is the server down? (connected=false)"); | |
callbacks.error("Is the server down? (connected=false)"); | |
return; | |
} | |
var request = { "janus": "detach", "transaction": Janus.randomString(12) }; | |
if(pluginHandle.token) | |
request["token"] = pluginHandle.token; | |
if(apisecret) | |
request["apisecret"] = apisecret; | |
if(websockets) { | |
request["session_id"] = sessionId; | |
request["handle_id"] = handleId; | |
ws.send(JSON.stringify(request)); | |
delete pluginHandles[handleId]; | |
callbacks.success(); | |
return; | |
} | |
Janus.httpAPICall(server + "/" + sessionId + "/" + handleId, { | |
verb: 'POST', | |
withCredentials: withCredentials, | |
body: request, | |
success: function(json) { | |
Janus.log("Destroyed handle:"); | |
Janus.debug(json); | |
if(json["janus"] !== "success") { | |
Janus.error("Ooops: " + json["error"].code + " " + json["error"].reason); // FIXME | |
} | |
delete pluginHandles[handleId]; | |
callbacks.success(); | |
}, | |
error: function(textStatus, errorThrown) { | |
Janus.error(textStatus + ":", errorThrown); // FIXME | |
// We cleanup anyway | |
delete pluginHandles[handleId]; | |
callbacks.success(); | |
} | |
}); | |
} | |
// WebRTC stuff | |
function streamsDone(handleId, jsep, media, callbacks, stream) { | |
console.log("streamsDone streamsDone"); | |
console.log("streamsDone:", stream); | |
Janus.debug("streamsDone:", stream); | |
if(stream) { | |
Janus.debug(" -- Audio tracks:", stream.getAudioTracks()); | |
Janus.debug(" -- Video tracks:", stream.getVideoTracks()); | |
} | |
var pluginHandle = pluginHandles[handleId]; | |
if(!pluginHandle || !pluginHandle.webrtcStuff) { | |
Janus.warn("Invalid handle"); | |
// Close all tracks if the given stream has been created internally | |
if(!callbacks.stream) { | |
Janus.stopAllTracks(stream); | |
} | |
callbacks.error("Invalid handle"); | |
return; | |
} | |
var config = pluginHandle.webrtcStuff; | |
Janus.debug("streamsDone:", stream); | |
if(stream) { | |
Janus.debug(" -- Audio tracks:", stream.getAudioTracks()); | |
Janus.debug(" -- Video tracks:", stream.getVideoTracks()); | |
} | |
// We're now capturing the new stream: check if we're updating or if it's a new thing | |
var addTracks = false; | |
console.log("MYSTREAM", config.myStream); | |
if(!config.myStream || !media.update || config.streamExternal) { | |
config.myStream = stream; | |
addTracks = true; | |
} else { | |
// We only need to update the existing stream | |
if(((!media.update && isAudioSendEnabled(media)) || (media.update && (media.addAudio || media.replaceAudio))) && | |
stream.getAudioTracks() && stream.getAudioTracks().length) { | |
config.myStream.addTrack(stream.getAudioTracks()[0]); | |
if(Janus.unifiedPlan) { | |
// Use Transceivers | |
Janus.log((media.replaceAudio ? "Replacing" : "Adding") + " audio track:", stream.getAudioTracks()[0]); | |
var audioTransceiver = null; | |
var transceivers = config.pc.getTransceivers(); | |
if(transceivers && transceivers.length > 0) { | |
for(var t of transceivers) { | |
if((t.sender && t.sender.track && t.sender.track.kind === "audio") || | |
(t.receiver && t.receiver.track && t.receiver.track.kind === "audio")) { | |
audioTransceiver = t; | |
break; | |
} | |
} | |
} | |
if(audioTransceiver && audioTransceiver.sender) { | |
audioTransceiver.sender.replaceTrack(stream.getAudioTracks()[0]); | |
} else { | |
config.myStream.addTrack(stream.getAudioTracks()[0], stream); | |
} | |
} else { | |
Janus.log((media.replaceAudio ? "Replacing" : "Adding") + " audio track:", stream.getAudioTracks()[0]); | |
config.myStream.addTrack(stream.getAudioTracks()[0], stream); | |
} | |
} | |
if(((!media.update && isVideoSendEnabled(media)) || (media.update && (media.addVideo || media.replaceVideo))) && | |
stream.getVideoTracks() && stream.getVideoTracks().length) { | |
config.myStream.addTrack(stream.getVideoTracks()[0]); | |
if(Janus.unifiedPlan) { | |
// Use Transceivers | |
Janus.log((media.replaceVideo ? "Replacing" : "Adding") + " video track:", stream.getVideoTracks()[0]); | |
var videoTransceiver = null; | |
var transceivers = config.pc.getTransceivers(); | |
if(transceivers && transceivers.length > 0) { | |
for(var t of transceivers) { | |
if((t.sender && t.sender.track && t.sender.track.kind === "video") || | |
(t.receiver && t.receiver.track && t.receiver.track.kind === "video")) { | |
videoTransceiver = t; | |
break; | |
} | |
} | |
} | |
if(videoTransceiver && videoTransceiver.sender) { | |
videoTransceiver.sender.replaceTrack(stream.getVideoTracks()[0]); | |
} else { | |
config.myStream.addTrack(stream.getVideoTracks()[0], stream); | |
} | |
} else { | |
Janus.log((media.replaceVideo ? "Replacing" : "Adding") + " video track:", stream.getVideoTracks()[0]); | |
config.myStream.addTrack(stream.getVideoTracks()[0], stream); | |
} | |
} | |
} | |
// If we still need to create a PeerConnection, let's do that | |
console.log("config.pc", config.pc) | |
if(!config.pc) { | |
var pc_config = {"iceServers": iceServers, "iceTransportPolicy": iceTransportPolicy, "bundlePolicy": bundlePolicy}; | |
var pc_constraints = { | |
"optional": [{"DtlsSrtpKeyAgreement": true}] | |
}; | |
if(ipv6Support) { | |
pc_constraints.optional.push({"googIPv6":true}); | |
} | |
// Any custom constraint to add? | |
if(callbacks.rtcConstraints && typeof callbacks.rtcConstraints === 'object') { | |
Janus.debug("Adding custom PeerConnection constraints:", callbacks.rtcConstraints); | |
for(var i in callbacks.rtcConstraints) { | |
pc_constraints.optional.push(callbacks.rtcConstraints[i]); | |
} | |
} | |
// Check if a sender or receiver transform has been provided | |
if(RTCRtpSender && RTCRtpSender.prototype.createEncodedAudioStreams && | |
RTCRtpSender.prototype.createEncodedVideoStreams && | |
(callbacks.senderTransforms || callbacks.receiverTransforms)) { | |
config.senderTransforms = callbacks.senderTransforms; | |
config.receiverTransforms = callbacks.receiverTransforms; | |
pc_config["forceEncodedAudioInsertableStreams"] = true; | |
pc_config["forceEncodedVideoInsertableStreams"] = true; | |
pc_config["encodedInsertableStreams"] = true; | |
} | |
Janus.log("Creating PeerConnection"); | |
Janus.debug(pc_constraints); | |
config.pc = new RTCPeerConnection(pc_config, pc_constraints); | |
Janus.debug(config.pc); | |
if(config.pc.getStats) { // FIXME | |
config.volume = {}; | |
config.bitrate.value = "0 kbits/sec"; | |
} | |
Janus.log("Preparing local SDP and gathering candidates (trickle=" + config.trickle + ")"); | |
config.pc.oniceconnectionstatechange = function(e) { | |
if(config.pc) | |
pluginHandle.iceState(config.pc.iceConnectionState); | |
}; | |
config.pc.onicecandidate = function(event) { | |
if (!event.candidate) { | |
Janus.log("End of candidates."); | |
config.iceDone = true; | |
if(config.trickle === true) { | |
// Notify end of candidates | |
sendTrickleCandidate(handleId, {"completed": true}); | |
} else { | |
// No trickle, time to send the complete SDP (including all candidates) | |
sendSDP(handleId, callbacks); | |
} | |
} else { | |
// JSON.stringify doesn't work on some WebRTC objects anymore | |
// See https://code.google.com/p/chromium/issues/detail?id=467366 | |
var candidate = { | |
"candidate": event.candidate.candidate, | |
"sdpMid": event.candidate.sdpMid, | |
"sdpMLineIndex": event.candidate.sdpMLineIndex | |
}; | |
if(config.trickle === true) { | |
// Send candidate | |
sendTrickleCandidate(handleId, candidate); | |
} | |
} | |
}; | |
config.pc.ontrack = function(event) { | |
Janus.log("Handling Remote Track"); | |
Janus.debug(event); | |
if(!event.streams) | |
return; | |
config.remoteStream = event.streams[0]; | |
pluginHandle.onremotestream(config.remoteStream); | |
if(event.track.onended) | |
return; | |
if(config.receiverTransforms) { | |
var receiverStreams = null; | |
if(event.track.kind === "audio" && config.receiverTransforms["audio"]) { | |
receiverStreams = event.receiver.createEncodedAudioStreams(); | |
} else if(event.track.kind === "video" && config.receiverTransforms["video"]) { | |
receiverStreams = event.receiver.createEncodedVideoStreams(); | |
} | |
if(receiverStreams) { | |
receiverStreams.readableStream | |
.pipeThrough(config.receiverTransforms[event.track.kind]) | |
.pipeTo(receiverStreams.writableStream); | |
} | |
} | |
var trackMutedTimeoutId = null; | |
Janus.log("Adding onended callback to track:", event.track); | |
event.track.onended = function(ev) { | |
Janus.log("Remote track removed:", ev); | |
if(config.remoteStream) { | |
clearTimeout(trackMutedTimeoutId); | |
config.remoteStream.removeTrack(ev.target); | |
pluginHandle.onremotestream(config.remoteStream); | |
} | |
}; | |
event.track.onmute = function(ev) { | |
Janus.log("Remote track muted:", ev); | |
if(config.remoteStream && trackMutedTimeoutId == null) { | |
trackMutedTimeoutId = setTimeout(function() { | |
Janus.log("Removing remote track"); | |
if (config.remoteStream) { | |
config.remoteStream.removeTrack(ev.target); | |
pluginHandle.onremotestream(config.remoteStream); | |
} | |
trackMutedTimeoutId = null; | |
// Chrome seems to raise mute events only at multiples of 834ms; | |
// we set the timeout to three times this value (rounded to 840ms) | |
}, 3 * 840); | |
} | |
}; | |
event.track.onunmute = function(ev) { | |
Janus.log("Remote track flowing again:", ev); | |
if(trackMutedTimeoutId != null) { | |
clearTimeout(trackMutedTimeoutId); | |
trackMutedTimeoutId = null; | |
} else { | |
try { | |
config.remoteStream.addTrack(ev.target); | |
pluginHandle.onremotestream(config.remoteStream); | |
} catch(e) { | |
Janus.error(e); | |
}; | |
} | |
}; | |
}; | |
} | |
if(addTracks && stream) { | |
Janus.log('Adding local stream'); | |
var simulcast2 = (callbacks.simulcast2 === true); | |
stream.getTracks().forEach(function(track) { | |
Janus.log('Adding local track:', track); | |
if(!simulcast2) { | |
var sender = config.pc.addStram(stream); | |
if(sender && config.senderTransforms) { | |
var senderStreams = null; | |
if(sender.track.kind === "audio" && config.senderTransforms["audio"]) { | |
senderStreams = sender.createEncodedAudioStreams(); | |
} else if(sender.track.kind === "video" && config.senderTransforms["video"]) { | |
senderStreams = sender.createEncodedVideoStreams(); | |
} | |
if(senderStreams) { | |
senderStreams.readableStream | |
.pipeThrough(config.senderTransforms[sender.track.kind]) | |
.pipeTo(senderStreams.writableStream); | |
} | |
} | |
} else { | |
if(track.kind === "audio") { | |
config.remoteStream.addTrack(track, stream); | |
} else { | |
Janus.log('Enabling rid-based simulcasting:', track); | |
var maxBitrates = getMaxBitrates(callbacks.simulcastMaxBitrates); | |
config.remoteStream.addTransceiver(track, { | |
direction: "sendrecv", | |
streams: [stream], | |
sendEncodings: [ | |
{ rid: "h", active: true, maxBitrate: maxBitrates.high }, | |
{ rid: "m", active: true, maxBitrate: maxBitrates.medium, scaleResolutionDownBy: 2 }, | |
{ rid: "l", active: true, maxBitrate: maxBitrates.low, scaleResolutionDownBy: 4 } | |
] | |
}); | |
} | |
} | |
}); | |
} | |
// Any data channel to create? | |
if(isDataEnabled(media) && !config.dataChannel[Janus.dataChanDefaultLabel]) { | |
Janus.log("Creating default data channel"); | |
createDataChannel(handleId, Janus.dataChanDefaultLabel, null, false); | |
config.pc.ondatachannel = function(event) { | |
Janus.log("Data channel created by Janus:", event); | |
createDataChannel(handleId, event.channel.label, event.channel.protocol, event.channel); | |
}; | |
} | |
// If there's a new local stream, let's notify the application | |
if(config.myStream) { | |
pluginHandle.onlocalstream(config.myStream); | |
} | |
// Create offer/answer now | |
if(!jsep) { | |
createOffer(handleId, media, callbacks); | |
} else { | |
config.pc.setRemoteDescription(jsep) | |
.then(function() { | |
Janus.log("Remote description accepted!"); | |
config.remoteSdp = jsep.sdp; | |
// Any trickle candidate we cached? | |
if(config.candidates && config.candidates.length > 0) { | |
for(var i = 0; i< config.candidates.length; i++) { | |
var candidate = config.candidates[i]; | |
Janus.debug("Adding remote candidate:", candidate); | |
if(!candidate || candidate.completed === true) { | |
// end-of-candidates | |
config.pc.addIceCandidate(Janus.endOfCandidates); | |
} else { | |
// New candidate | |
config.pc.addIceCandidate(candidate); | |
} | |
} | |
config.candidates = []; | |
} | |
// Create the answer now | |
createAnswer(handleId, media, callbacks); | |
}, callbacks.error); | |
} | |
} | |
function prepareWebrtc(handleId, offer, callbacks) { | |
callbacks = callbacks || {}; | |
callbacks.success = (typeof callbacks.success == "function") ? callbacks.success : Janus.noop; | |
callbacks.error = (typeof callbacks.error == "function") ? callbacks.error : webrtcError; | |
var jsep = callbacks.jsep; | |
if(offer && jsep) { | |
Janus.error("Provided a JSEP to a createOffer"); | |
callbacks.error("Provided a JSEP to a createOffer"); | |
return; | |
} else if(!offer && (!jsep || !jsep.type || !jsep.sdp)) { | |
Janus.error("A valid JSEP is required for createAnswer"); | |
callbacks.error("A valid JSEP is required for createAnswer"); | |
return; | |
} | |
/* Check that callbacks.media is a (not null) Object */ | |
callbacks.media = (typeof callbacks.media === 'object' && callbacks.media) ? callbacks.media : { audio: true, video: true }; | |
var media = callbacks.media; | |
var pluginHandle = pluginHandles[handleId]; | |
if(!pluginHandle || !pluginHandle.webrtcStuff) { | |
Janus.warn("Invalid handle"); | |
callbacks.error("Invalid handle"); | |
return; | |
} | |
var config = pluginHandle.webrtcStuff; | |
config.trickle = isTrickleEnabled(callbacks.trickle); | |
// Are we updating a session? | |
if(!config.pc) { | |
// Nope, new PeerConnection | |
media.update = false; | |
media.keepAudio = false; | |
media.keepVideo = false; | |
} else { | |
Janus.log("Updating existing media session"); | |
media.update = true; | |
// Check if there's anything to add/remove/replace, or if we | |
// can go directly to preparing the new SDP offer or answer | |
if(callbacks.stream) { | |
// External stream: is this the same as the one we were using before? | |
if(callbacks.stream !== config.myStream) { | |
Janus.log("Renegotiation involves a new external stream"); | |
} | |
} else { | |
// Check if there are changes on audio | |
if(media.addAudio) { | |
media.keepAudio = false; | |
media.replaceAudio = false; | |
media.removeAudio = false; | |
media.audioSend = true; | |
if(config.myStream && config.myStream.getAudioTracks() && config.myStream.getAudioTracks().length) { | |
Janus.error("Can't add audio stream, there already is one"); | |
callbacks.error("Can't add audio stream, there already is one"); | |
return; | |
} | |
} else if(media.removeAudio) { | |
media.keepAudio = false; | |
media.replaceAudio = false; | |
media.addAudio = false; | |
media.audioSend = false; | |
} else if(media.replaceAudio) { | |
media.keepAudio = false; | |
media.addAudio = false; | |
media.removeAudio = false; | |
media.audioSend = true; | |
} | |
if(!config.myStream) { | |
// No media stream: if we were asked to replace, it's actually an "add" | |
if(media.replaceAudio) { | |
media.keepAudio = false; | |
media.replaceAudio = false; | |
media.addAudio = true; | |
media.audioSend = true; | |
} | |
if(isAudioSendEnabled(media)) { | |
media.keepAudio = false; | |
media.addAudio = true; | |
} | |
} else { | |
if(!config.myStream.getAudioTracks() || config.myStream.getAudioTracks().length === 0) { | |
// No audio track: if we were asked to replace, it's actually an "add" | |
if(media.replaceAudio) { | |
media.keepAudio = false; | |
media.replaceAudio = false; | |
media.addAudio = true; | |
media.audioSend = true; | |
} | |
if(isAudioSendEnabled(media)) { | |
media.keepAudio = false; | |
media.addAudio = true; | |
} | |
} else { | |
// We have an audio track: should we keep it as it is? | |
if(isAudioSendEnabled(media) && | |
!media.removeAudio && !media.replaceAudio) { | |
media.keepAudio = true; | |
} | |
} | |
} | |
// Check if there are changes on video | |
if(media.addVideo) { | |
media.keepVideo = false; | |
media.replaceVideo = false; | |
media.removeVideo = false; | |
media.videoSend = true; | |
if(config.myStream && config.myStream.getVideoTracks() && config.myStream.getVideoTracks().length) { | |
Janus.error("Can't add video stream, there already is one"); | |
callbacks.error("Can't add video stream, there already is one"); | |
return; | |
} | |
} else if(media.removeVideo) { | |
media.keepVideo = false; | |
media.replaceVideo = false; | |
media.addVideo = false; | |
media.videoSend = false; | |
} else if(media.replaceVideo) { | |
media.keepVideo = false; | |
media.addVideo = false; | |
media.removeVideo = false; | |
media.videoSend = true; | |
} | |
if(!config.myStream) { | |
// No media stream: if we were asked to replace, it's actually an "add" | |
if(media.replaceVideo) { | |
media.keepVideo = false; | |
media.replaceVideo = false; | |
media.addVideo = true; | |
media.videoSend = true; | |
} | |
if(isVideoSendEnabled(media)) { | |
media.keepVideo = false; | |
media.addVideo = true; | |
} | |
} else { | |
if(!config.myStream.getVideoTracks() || config.myStream.getVideoTracks().length === 0) { | |
// No video track: if we were asked to replace, it's actually an "add" | |
if(media.replaceVideo) { | |
media.keepVideo = false; | |
media.replaceVideo = false; | |
media.addVideo = true; | |
media.videoSend = true; | |
} | |
if(isVideoSendEnabled(media)) { | |
media.keepVideo = false; | |
media.addVideo = true; | |
} | |
} else { | |
// We have a video track: should we keep it as it is? | |
if(isVideoSendEnabled(media) && !media.removeVideo && !media.replaceVideo) { | |
media.keepVideo = true; | |
} | |
} | |
} | |
// Data channels can only be added | |
if(media.addData) { | |
media.data = true; | |
} | |
} | |
// If we're updating and keeping all tracks, let's skip the getUserMedia part | |
if((isAudioSendEnabled(media) && media.keepAudio) && | |
(isVideoSendEnabled(media) && media.keepVideo)) { | |
pluginHandle.consentDialog(false); | |
streamsDone(handleId, jsep, media, callbacks, config.myStream); | |
return; | |
} | |
} | |
// If we're updating, check if we need to remove/replace one of the tracks | |
if(media.update && !config.streamExternal) { | |
if(media.removeAudio || media.replaceAudio) { | |
if(config.myStream && config.myStream.getAudioTracks() && config.myStream.getAudioTracks().length) { | |
var at = config.myStream.getAudioTracks()[0]; | |
Janus.log("Removing audio track:", at); | |
config.myStream.removeTrack(at); | |
try { | |
at.stop(); | |
} catch(e) {} | |
} | |
if(config.pc.getSenders() && config.pc.getSenders().length) { | |
var ra = true; | |
if(media.replaceAudio && Janus.unifiedPlan) { | |
// We can use replaceTrack | |
ra = false; | |
} | |
if(ra) { | |
for(var asnd of config.pc.getSenders()) { | |
if(asnd && asnd.track && asnd.track.kind === "audio") { | |
Janus.log("Removing audio sender:", asnd); | |
config.pc.removeTrack(asnd); | |
} | |
} | |
} | |
} | |
} | |
if(media.removeVideo || media.replaceVideo) { | |
if(config.myStream && config.myStream.getVideoTracks() && config.myStream.getVideoTracks().length) { | |
var vt = config.myStream.getVideoTracks()[0]; | |
Janus.log("Removing video track:", vt); | |
config.myStream.removeTrack(vt); | |
try { | |
vt.stop(); | |
} catch(e) {} | |
} | |
if(config.pc.getSenders() && config.pc.getSenders().length) { | |
var rv = true; | |
if(media.replaceVideo && Janus.unifiedPlan) { | |
// We can use replaceTrack | |
rv = false; | |
} | |
if(rv) { | |
for(var vsnd of config.pc.getSenders()) { | |
if(vsnd && vsnd.track && vsnd.track.kind === "video") { | |
Janus.log("Removing video sender:", vsnd); | |
config.pc.removeTrack(vsnd); | |
} | |
} | |
} | |
} | |
} | |
} | |
// Was a MediaStream object passed, or do we need to take care of that? | |
if(callbacks.stream) { | |
var stream = callbacks.stream; | |
Janus.log("MediaStream provided by the application"); | |
Janus.debug(stream); | |
// If this is an update, let's check if we need to release the previous stream | |
if(media.update) { | |
if(config.myStream && config.myStream !== callbacks.stream && !config.streamExternal) { | |
// We're replacing a stream we captured ourselves with an external one | |
Janus.stopAllTracks(config.myStream); | |
config.myStream = null; | |
} | |
} | |
// Skip the getUserMedia part | |
config.streamExternal = true; | |
pluginHandle.consentDialog(false); | |
streamsDone(handleId, jsep, media, callbacks, stream); | |
return; | |
} | |
if(isAudioSendEnabled(media) || isVideoSendEnabled(media)) { | |
if(!Janus.isGetUserMediaAvailable()) { | |
callbacks.error("getUserMedia not available"); | |
return; | |
} | |
var constraints = { mandatory: {}, optional: []}; | |
pluginHandle.consentDialog(true); | |
var audioSupport = isAudioSendEnabled(media); | |
if(audioSupport && media && typeof media.audio === 'object') | |
audioSupport = media.audio; | |
var videoSupport = isVideoSendEnabled(media); | |
if(videoSupport && media) { | |
var simulcast = (callbacks.simulcast === true); | |
var simulcast2 = (callbacks.simulcast2 === true); | |
if((simulcast || simulcast2) && !jsep && !media.video) | |
media.video = "hires"; | |
if(media.video && media.video != 'screen' && media.video != 'window') { | |
if(typeof media.video === 'object') { | |
videoSupport = media.video; | |
} else { | |
var width = 0; | |
var height = 0, maxHeight = 0; | |
if(media.video === 'lowres') { | |
// Small resolution, 4:3 | |
height = 240; | |
maxHeight = 240; | |
width = 320; | |
} else if(media.video === 'lowres-16:9') { | |
// Small resolution, 16:9 | |
height = 180; | |
maxHeight = 180; | |
width = 320; | |
} else if(media.video === 'hires' || media.video === 'hires-16:9' || media.video === 'hdres') { | |
// High(HD) resolution is only 16:9 | |
height = 720; | |
maxHeight = 720; | |
width = 1280; | |
} else if(media.video === 'fhdres') { | |
// Full HD resolution is only 16:9 | |
height = 1080; | |
maxHeight = 1080; | |
width = 1920; | |
} else if(media.video === '4kres') { | |
// 4K resolution is only 16:9 | |
height = 2160; | |
maxHeight = 2160; | |
width = 3840; | |
} else if(media.video === 'stdres') { | |
// Normal resolution, 4:3 | |
height = 480; | |
maxHeight = 480; | |
width = 640; | |
} else if(media.video === 'stdres-16:9') { | |
// Normal resolution, 16:9 | |
height = 360; | |
maxHeight = 360; | |
width = 640; | |
} else { | |
Janus.log("Default video setting is stdres 4:3"); | |
height = 480; | |
maxHeight = 480; | |
width = 640; | |
} | |
Janus.log("Adding media constraint:", media.video); | |
videoSupport = { | |
'height': {'ideal': height}, | |
'width': {'ideal': width} | |
}; | |
Janus.log("Adding video constraint:", videoSupport); | |
} | |
} else if(media.video === 'screen' || media.video === 'window') { | |
if(mediaDevices && mediaDevices.getDisplayMedia) { | |
// The new experimental getDisplayMedia API is available, let's use that | |
// https://groups.google.com/forum/#!topic/discuss-webrtc/Uf0SrR4uxzk | |
// https://webrtchacks.com/chrome-screensharing-getdisplaymedia/ | |
constraints.video = {}; | |
if(media.screenshareFrameRate) { | |
constraints.video.frameRate = media.screenshareFrameRate; | |
} | |
if(media.screenshareHeight) { | |
constraints.video.height = media.screenshareHeight; | |
} | |
if(media.screenshareWidth) { | |
constraints.video.width = media.screenshareWidth; | |
} | |
constraints.audio = media.captureDesktopAudio; | |
mediaDevices.getDisplayMedia(constraints) | |
.then(function(stream) { | |
pluginHandle.consentDialog(false); | |
if(isAudioSendEnabled(media) && !media.keepAudio) { | |
mediaDevices.getUserMedia({ audio: true, video: true }) | |
.then(function (audioStream) { | |
stream.addTrack(audioStream.getAudioTracks()[0]); | |
streamsDone(handleId, jsep, media, callbacks, stream); | |
}) | |
} else { | |
streamsDone(handleId, jsep, media, callbacks, stream); | |
} | |
}, function (error) { | |
pluginHandle.consentDialog(false); | |
callbacks.error(error); | |
}); | |
return; | |
} | |
// We're going to try and use the extension for Chrome 34+, the old approach | |
// for older versions of Chrome, or the experimental support in Firefox 33+ | |
function callbackUserMedia (error, stream) { | |
pluginHandle.consentDialog(false); | |
if(error) { | |
callbacks.error(error); | |
} else { | |
streamsDone(handleId, jsep, media, callbacks, stream); | |
} | |
} | |
function getScreenMedia(constraints, gsmCallback, useAudio) { | |
Janus.log("Adding media constraint (screen capture)"); | |
Janus.debug(constraints); | |
mediaDevices.getUserMedia(constraints) | |
.then(function(stream) { | |
if(useAudio) { | |
mediaDevices.getUserMedia({ audio: true, video: true }) | |
.then(function (audioStream) { | |
stream.addTrack(audioStream.getAudioTracks()[0]); | |
gsmCallback(null, stream); | |
}) | |
} else { | |
gsmCallback(null, stream); | |
} | |
}) | |
.catch(function(error) { pluginHandle.consentDialog(false); gsmCallback(error); }); | |
} | |
if(Janus.webRTCAdapter.browserDetails.browser === 'chrome') { | |
var chromever = Janus.webRTCAdapter.browserDetails.version; | |
var maxver = 33; | |
if(window.navigator.userAgent.match('Linux')) | |
maxver = 35; // "known" crash in chrome 34 and 35 on linux | |
if(chromever >= 26 && chromever <= maxver) { | |
// Chrome 26->33 requires some awkward chrome://flags manipulation | |
constraints = { | |
video: { | |
mandatory: { | |
googLeakyBucket: true, | |
maxWidth: window.screen.width, | |
maxHeight: window.screen.height, | |
minFrameRate: media.screenshareFrameRate, | |
maxFrameRate: media.screenshareFrameRate, | |
chromeMediaSource: 'screen' | |
} | |
}, | |
audio: isAudioSendEnabled(media) && !media.keepAudio | |
}; | |
getScreenMedia(constraints, callbackUserMedia); | |
} else { | |
// Chrome 34+ requires an extension | |
Janus.extension.getScreen(function (error, sourceId) { | |
if (error) { | |
pluginHandle.consentDialog(false); | |
return callbacks.error(error); | |
} | |
constraints = { | |
audio: false, | |
video: { | |
mandatory: { | |
chromeMediaSource: 'desktop', | |
maxWidth: window.screen.width, | |
maxHeight: window.screen.height, | |
minFrameRate: media.screenshareFrameRate, | |
maxFrameRate: media.screenshareFrameRate, | |
}, | |
optional: [ | |
{googLeakyBucket: true}, | |
{googTemporalLayeredScreencast: true} | |
] | |
} | |
}; | |
constraints.video.mandatory.chromeMediaSourceId = sourceId; | |
getScreenMedia(constraints, callbackUserMedia, | |
isAudioSendEnabled(media) && !media.keepAudio); | |
}); | |
} | |
} else if(Janus.webRTCAdapter.browserDetails.browser === 'firefox') { | |
if(Janus.webRTCAdapter.browserDetails.version >= 33) { | |
// Firefox 33+ has experimental support for screen sharing | |
constraints = { | |
video: { | |
mozMediaSource: media.video, | |
mediaSource: media.video | |
}, | |
audio: isAudioSendEnabled(media) && !media.keepAudio | |
}; | |
getScreenMedia(constraints, function (err, stream) { | |
callbackUserMedia(err, stream); | |
// Workaround for https://bugzilla.mozilla.org/show_bug.cgi?id=1045810 | |
if (!err) { | |
var lastTime = stream.currentTime; | |
var polly = window.setInterval(function () { | |
if(!stream) | |
window.clearInterval(polly); | |
if(stream.currentTime == lastTime) { | |
window.clearInterval(polly); | |
if(stream.onended) { | |
stream.onended(); | |
} | |
} | |
lastTime = stream.currentTime; | |
}, 500); | |
} | |
}); | |
} else { | |
var error = new Error('NavigatorUserMediaError'); | |
error.name = 'Your version of Firefox does not support screen sharing, please install Firefox 33 (or more recent versions)'; | |
pluginHandle.consentDialog(false); | |
callbacks.error(error); | |
return; | |
} | |
} | |
return; | |
} | |
} | |
// If we got here, we're not screensharing | |
if(!media || media.video !== 'screen') { | |
// Check whether all media sources are actually available or not | |
mediaDevices.enumerateDevices().then(function(devices) { | |
var audioExist = devices.some(function(device) { | |
return device.kind === 'audioinput'; | |
}), | |
videoExist = isScreenSendEnabled(media) || devices.some(function(device) { | |
return device.kind === 'videoinput'; | |
}); | |
// Check whether a missing device is really a problem | |
var audioSend = isAudioSendEnabled(media); | |
var videoSend = isVideoSendEnabled(media); | |
var needAudioDevice = isAudioSendRequired(media); | |
var needVideoDevice = isVideoSendRequired(media); | |
if(audioSend || videoSend || needAudioDevice || needVideoDevice) { | |
// We need to send either audio or video | |
var haveAudioDevice = audioSend ? audioExist : false; | |
var haveVideoDevice = videoSend ? videoExist : false; | |
if(!haveAudioDevice && !haveVideoDevice) { | |
// FIXME Should we really give up, or just assume recvonly for both? | |
pluginHandle.consentDialog(false); | |
callbacks.error('No capture device found'); | |
return false; | |
} else if(!haveAudioDevice && needAudioDevice) { | |
pluginHandle.consentDialog(false); | |
callbacks.error('Audio capture is required, but no capture device found'); | |
return false; | |
} else if(!haveVideoDevice && needVideoDevice) { | |
pluginHandle.consentDialog(false); | |
callbacks.error('Video capture is required, but no capture device found'); | |
return false; | |
} | |
} | |
var gumConstraints = { | |
audio: (audioExist && !media.keepAudio) ? audioSupport : false, | |
video: (videoExist && !media.keepVideo) ? videoSupport : false | |
}; | |
Janus.debug("getUserMedia constraints", gumConstraints); | |
if (!gumConstraints.audio && !gumConstraints.video) { | |
pluginHandle.consentDialog(false); | |
streamsDone(handleId, jsep, media, callbacks, stream); | |
} else { | |
mediaDevices.getUserMedia(gumConstraints) | |
.then(function(stream) { | |
pluginHandle.consentDialog(false); | |
streamsDone(handleId, jsep, media, callbacks, stream); | |
}).catch(function(error) { | |
pluginHandle.consentDialog(false); | |
callbacks.error({code: error.code, name: error.name, message: error.message}); | |
}); | |
} | |
}) | |
.catch(function(error) { | |
pluginHandle.consentDialog(false); | |
callbacks.error(error); | |
}); | |
} | |
} else { | |
// No need to do a getUserMedia, create offer/answer right away | |
streamsDone(handleId, jsep, media, callbacks); | |
} | |
} | |
function prepareWebrtcPeer(handleId, callbacks) { | |
callbacks = callbacks || {}; | |
callbacks.success = (typeof callbacks.success == "function") ? callbacks.success : Janus.noop; | |
callbacks.error = (typeof callbacks.error == "function") ? callbacks.error : webrtcError; | |
var jsep = callbacks.jsep; | |
var pluginHandle = pluginHandles[handleId]; | |
if(!pluginHandle || !pluginHandle.webrtcStuff) { | |
Janus.warn("Invalid handle"); | |
callbacks.error("Invalid handle"); | |
return; | |
} | |
var config = pluginHandle.webrtcStuff; | |
if(jsep) { | |
if(!config.pc) { | |
Janus.warn("Wait, no PeerConnection?? if this is an answer, use createAnswer and not handleRemoteJsep"); | |
callbacks.error("No PeerConnection: if this is an answer, use createAnswer and not handleRemoteJsep"); | |
return; | |
} | |
config.pc.setRemoteDescription(jsep) | |
.then(function() { | |
Janus.log("Remote description accepted!"); | |
config.remoteSdp = jsep.sdp; | |
// Any trickle candidate we cached? | |
if(config.candidates && config.candidates.length > 0) { | |
for(var i = 0; i< config.candidates.length; i++) { | |
var candidate = config.candidates[i]; | |
Janus.debug("Adding remote candidate:", candidate); | |
if(!candidate || candidate.completed === true) { | |
// end-of-candidates | |
config.pc.addIceCandidate(Janus.endOfCandidates); | |
} else { | |
// New candidate | |
config.pc.addIceCandidate(candidate); | |
} | |
} | |
config.candidates = []; | |
} | |
// Done | |
callbacks.success(); | |
}, callbacks.error); | |
} else { | |
callbacks.error("Invalid JSEP"); | |
} | |
} | |
function createOffer(handleId, media, callbacks) { | |
callbacks = callbacks || {}; | |
callbacks.success = (typeof callbacks.success == "function") ? callbacks.success : Janus.noop; | |
callbacks.error = (typeof callbacks.error == "function") ? callbacks.error : Janus.noop; | |
callbacks.customizeSdp = (typeof callbacks.customizeSdp == "function") ? callbacks.customizeSdp : Janus.noop; | |
var pluginHandle = pluginHandles[handleId]; | |
if(!pluginHandle || !pluginHandle.webrtcStuff) { | |
Janus.warn("Invalid handle"); | |
callbacks.error("Invalid handle"); | |
return; | |
} | |
var config = pluginHandle.webrtcStuff; | |
var simulcast = (callbacks.simulcast === true); | |
if(!simulcast) { | |
Janus.log("Creating offer (iceDone=" + config.iceDone + ")"); | |
} else { | |
Janus.log("Creating offer (iceDone=" + config.iceDone + ", simulcast=" + simulcast + ")"); | |
} | |
// https://code.google.com/p/webrtc/issues/detail?id=3508 | |
var mediaConstraints = {}; | |
if(Janus.unifiedPlan) { | |
// We can use Transceivers | |
var audioTransceiver = null, videoTransceiver = null; | |
var transceivers = config.pc.getTransceivers(); | |
if(transceivers && transceivers.length > 0) { | |
for(var t of transceivers) { | |
if((t.sender && t.sender.track && t.sender.track.kind === "audio") || | |
(t.receiver && t.receiver.track && t.receiver.track.kind === "audio")) { | |
if(!audioTransceiver) { | |
audioTransceiver = t; | |
} | |
continue; | |
} | |
if((t.sender && t.sender.track && t.sender.track.kind === "video") || | |
(t.receiver && t.receiver.track && t.receiver.track.kind === "video")) { | |
if(!videoTransceiver) { | |
videoTransceiver = t; | |
} | |
continue; | |
} | |
} | |
} | |
// Handle audio (and related changes, if any) | |
var audioSend = isAudioSendEnabled(media); | |
var audioRecv = isAudioRecvEnabled(media); | |
if(!audioSend && !audioRecv) { | |
// Audio disabled: have we removed it? | |
if(media.removeAudio && audioTransceiver) { | |
if (audioTransceiver.setDirection) { | |
audioTransceiver.setDirection("inactive"); | |
} else { | |
audioTransceiver.direction = "inactive"; | |
} | |
Janus.log("Setting audio transceiver to inactive:", audioTransceiver); | |
} | |
} else { | |
// Take care of audio m-line | |
if(audioSend && audioRecv) { | |
if(audioTransceiver) { | |
if (audioTransceiver.setDirection) { | |
audioTransceiver.setDirection("sendrecv"); | |
} else { | |
audioTransceiver.direction = "sendrecv"; | |
} | |
Janus.log("Setting audio transceiver to sendrecv:", audioTransceiver); | |
} | |
} else if(audioSend && !audioRecv) { | |
if(audioTransceiver) { | |
if (audioTransceiver.setDirection) { | |
audioTransceiver.setDirection("sendonly"); | |
} else { | |
audioTransceiver.direction = "sendonly"; | |
} | |
Janus.log("Setting audio transceiver to sendonly:", audioTransceiver); | |
} | |
} else if(!audioSend && audioRecv) { | |
if(audioTransceiver) { | |
if (audioTransceiver.setDirection) { | |
audioTransceiver.setDirection("recvonly"); | |
} else { | |
audioTransceiver.direction = "recvonly"; | |
} | |
Janus.log("Setting audio transceiver to recvonly:", audioTransceiver); | |
} else { | |
// In theory, this is the only case where we might not have a transceiver yet | |
audioTransceiver = config.pc.addTransceiver("audio", { direction: "recvonly" }); | |
Janus.log("Adding recvonly audio transceiver:", audioTransceiver); | |
} | |
} | |
} | |
// Handle video (and related changes, if any) | |
var videoSend = isVideoSendEnabled(media); | |
var videoRecv = isVideoRecvEnabled(media); | |
if(!videoSend && !videoRecv) { | |
// Video disabled: have we removed it? | |
if(media.removeVideo && videoTransceiver) { | |
if (videoTransceiver.setDirection) { | |
videoTransceiver.setDirection("inactive"); | |
} else { | |
videoTransceiver.direction = "inactive"; | |
} | |
Janus.log("Setting video transceiver to inactive:", videoTransceiver); | |
} | |
} else { | |
// Take care of video m-line | |
if(videoSend && videoRecv) { | |
if(videoTransceiver) { | |
if (videoTransceiver.setDirection) { | |
videoTransceiver.setDirection("sendrecv"); | |
} else { | |
videoTransceiver.direction = "sendrecv"; | |
} | |
Janus.log("Setting video transceiver to sendrecv:", videoTransceiver); | |
} | |
} else if(videoSend && !videoRecv) { | |
if(videoTransceiver) { | |
if (videoTransceiver.setDirection) { | |
videoTransceiver.setDirection("sendonly"); | |
} else { | |
videoTransceiver.direction = "sendonly"; | |
} | |
Janus.log("Setting video transceiver to sendonly:", videoTransceiver); | |
} | |
} else if(!videoSend && videoRecv) { | |
if(videoTransceiver) { | |
if (videoTransceiver.setDirection) { | |
videoTransceiver.setDirection("recvonly"); | |
} else { | |
videoTransceiver.direction = "recvonly"; | |
} | |
Janus.log("Setting video transceiver to recvonly:", videoTransceiver); | |
} else { | |
// In theory, this is the only case where we might not have a transceiver yet | |
videoTransceiver = config.pc.addTransceiver("video", { direction: "recvonly" }); | |
Janus.log("Adding recvonly video transceiver:", videoTransceiver); | |
} | |
} | |
} | |
} else { | |
mediaConstraints["offerToReceiveAudio"] = isAudioRecvEnabled(media); | |
mediaConstraints["offerToReceiveVideo"] = isVideoRecvEnabled(media); | |
} | |
var iceRestart = (callbacks.iceRestart === true); | |
if(iceRestart) { | |
mediaConstraints["iceRestart"] = true; | |
} | |
Janus.debug(mediaConstraints); | |
// Check if this is Firefox and we've been asked to do simulcasting | |
var sendVideo = isVideoSendEnabled(media); | |
if(sendVideo && simulcast && Janus.webRTCAdapter.browserDetails.browser === "firefox") { | |
// FIXME Based on https://gist.github.com/voluntas/088bc3cc62094730647b | |
Janus.log("Enabling Simulcasting for Firefox (RID)"); | |
var sender = config.pc.getSenders().find(function(s) {return s.track.kind === "video"}); | |
if(sender) { | |
var parameters = sender.getParameters(); | |
if(!parameters) { | |
parameters = {}; | |
} | |
var maxBitrates = getMaxBitrates(callbacks.simulcastMaxBitrates); | |
parameters.encodings = [ | |
{ rid: "h", active: true, maxBitrate: maxBitrates.high }, | |
{ rid: "m", active: true, maxBitrate: maxBitrates.medium, scaleResolutionDownBy: 2 }, | |
{ rid: "l", active: true, maxBitrate: maxBitrates.low, scaleResolutionDownBy: 4 } | |
]; | |
sender.setParameters(parameters); | |
} | |
} | |
config.pc.createOffer(mediaConstraints) | |
.then(function(offer) { | |
Janus.debug(offer); | |
// JSON.stringify doesn't work on some WebRTC objects anymore | |
// See https://code.google.com/p/chromium/issues/detail?id=467366 | |
var jsep = { | |
"type": offer.type, | |
"sdp": offer.sdp | |
}; | |
callbacks.customizeSdp(jsep); | |
offer.sdp = jsep.sdp; | |
Janus.log("Setting local description"); | |
if(sendVideo && simulcast) { | |
// This SDP munging only works with Chrome (Safari STP may support it too) | |
if(Janus.webRTCAdapter.browserDetails.browser === "chrome" || | |
Janus.webRTCAdapter.browserDetails.browser === "safari") { | |
Janus.log("Enabling Simulcasting for Chrome (SDP munging)"); | |
offer.sdp = mungeSdpForSimulcasting(offer.sdp); | |
} else if(Janus.webRTCAdapter.browserDetails.browser !== "firefox") { | |
Janus.warn("simulcast=true, but this is not Chrome nor Firefox, ignoring"); | |
} | |
} | |
config.mySdp = offer.sdp; | |
config.pc.setLocalDescription(offer) | |
.catch(callbacks.error); | |
config.mediaConstraints = mediaConstraints; | |
if(!config.iceDone && !config.trickle) { | |
// Don't do anything until we have all candidates | |
Janus.log("Waiting for all candidates..."); | |
return; | |
} | |
// If transforms are present, notify Janus that the media is end-to-end encrypted | |
if(config.senderTransforms || config.receiverTransforms) { | |
offer["e2ee"] = true; | |
} | |
callbacks.success(offer); | |
}, callbacks.error); | |
} | |
function createAnswer(handleId, media, callbacks) { | |
callbacks = callbacks || {}; | |
callbacks.success = (typeof callbacks.success == "function") ? callbacks.success : Janus.noop; | |
callbacks.error = (typeof callbacks.error == "function") ? callbacks.error : Janus.noop; | |
callbacks.customizeSdp = (typeof callbacks.customizeSdp == "function") ? callbacks.customizeSdp : Janus.noop; | |
var pluginHandle = pluginHandles[handleId]; | |
if(!pluginHandle || !pluginHandle.webrtcStuff) { | |
Janus.warn("Invalid handle"); | |
callbacks.error("Invalid handle"); | |
return; | |
} | |
var config = pluginHandle.webrtcStuff; | |
var simulcast = (callbacks.simulcast === true); | |
if(!simulcast) { | |
Janus.log("Creating answer (iceDone=" + config.iceDone + ")"); | |
} else { | |
Janus.log("Creating answer (iceDone=" + config.iceDone + ", simulcast=" + simulcast + ")"); | |
} | |
var mediaConstraints = null; | |
if(Janus.unifiedPlan) { | |
// We can use Transceivers | |
mediaConstraints = {}; | |
var audioTransceiver = null, videoTransceiver = null; | |
var transceivers = config.pc.getTransceivers(); | |
if(transceivers && transceivers.length > 0) { | |
for(var t of transceivers) { | |
if((t.sender && t.sender.track && t.sender.track.kind === "audio") || | |
(t.receiver && t.receiver.track && t.receiver.track.kind === "audio")) { | |
if(!audioTransceiver) | |
audioTransceiver = t; | |
continue; | |
} | |
if((t.sender && t.sender.track && t.sender.track.kind === "video") || | |
(t.receiver && t.receiver.track && t.receiver.track.kind === "video")) { | |
if(!videoTransceiver) | |
videoTransceiver = t; | |
continue; | |
} | |
} | |
} | |
// Handle audio (and related changes, if any) | |
var audioSend = isAudioSendEnabled(media); | |
var audioRecv = isAudioRecvEnabled(media); | |
if(!audioSend && !audioRecv) { | |
// Audio disabled: have we removed it? | |
if(media.removeAudio && audioTransceiver) { | |
try { | |
if (audioTransceiver.setDirection) { | |
audioTransceiver.setDirection("inactive"); | |
} else { | |
audioTransceiver.direction = "inactive"; | |
} | |
Janus.log("Setting audio transceiver to inactive:", audioTransceiver); | |
} catch(e) { | |
Janus.error(e); | |
} | |
} | |
} else { | |
// Take care of audio m-line | |
if(audioSend && audioRecv) { | |
if(audioTransceiver) { | |
try { | |
if (audioTransceiver.setDirection) { | |
audioTransceiver.setDirection("sendrecv"); | |
} else { | |
audioTransceiver.direction = "sendrecv"; | |
} | |
Janus.log("Setting audio transceiver to sendrecv:", audioTransceiver); | |
} catch(e) { | |
Janus.error(e); | |
} | |
} | |
} else if(audioSend && !audioRecv) { | |
try { | |
if(audioTransceiver) { | |
if (audioTransceiver.setDirection) { | |
audioTransceiver.setDirection("sendonly"); | |
} else { | |
audioTransceiver.direction = "sendonly"; | |
} | |
Janus.log("Setting audio transceiver to sendonly:", audioTransceiver); | |
} | |
} catch(e) { | |
Janus.error(e); | |
} | |
} else if(!audioSend && audioRecv) { | |
if(audioTransceiver) { | |
try { | |
if (audioTransceiver.setDirection) { | |
audioTransceiver.setDirection("recvonly"); | |
} else { | |
audioTransceiver.direction = "recvonly"; | |
} | |
Janus.log("Setting audio transceiver to recvonly:", audioTransceiver); | |
} catch(e) { | |
Janus.error(e); | |
} | |
} else { | |
// In theory, this is the only case where we might not have a transceiver yet | |
audioTransceiver = config.pc.addTransceiver("audio", { direction: "recvonly" }); | |
Janus.log("Adding recvonly audio transceiver:", audioTransceiver); | |
} | |
} | |
} | |
// Handle video (and related changes, if any) | |
var videoSend = isVideoSendEnabled(media); | |
var videoRecv = isVideoRecvEnabled(media); | |
if(!videoSend && !videoRecv) { | |
// Video disabled: have we removed it? | |
if(media.removeVideo && videoTransceiver) { | |
try { | |
if (videoTransceiver.setDirection) { | |
videoTransceiver.setDirection("inactive"); | |
} else { | |
videoTransceiver.direction = "inactive"; | |
} | |
Janus.log("Setting video transceiver to inactive:", videoTransceiver); | |
} catch(e) { | |
Janus.error(e); | |
} | |
} | |
} else { | |
// Take care of video m-line | |
if(videoSend && videoRecv) { | |
if(videoTransceiver) { | |
try { | |
if (videoTransceiver.setDirection) { | |
videoTransceiver.setDirection("sendrecv"); | |
} else { | |
videoTransceiver.direction = "sendrecv"; | |
} | |
Janus.log("Setting video transceiver to sendrecv:", videoTransceiver); | |
} catch(e) { | |
Janus.error(e); | |
} | |
} | |
} else if(videoSend && !videoRecv) { | |
if(videoTransceiver) { | |
try { | |
if (videoTransceiver.setDirection) { | |
videoTransceiver.setDirection("sendonly"); | |
} else { | |
videoTransceiver.direction = "sendonly"; | |
} | |
Janus.log("Setting video transceiver to sendonly:", videoTransceiver); | |
} catch(e) { | |
Janus.error(e); | |
} | |
} | |
} else if(!videoSend && videoRecv) { | |
if(videoTransceiver) { | |
try { | |
if (videoTransceiver.setDirection) { | |
videoTransceiver.setDirection("recvonly"); | |
} else { | |
videoTransceiver.direction = "recvonly"; | |
} | |
Janus.log("Setting video transceiver to recvonly:", videoTransceiver); | |
} catch(e) { | |
Janus.error(e); | |
} | |
} else { | |
// In theory, this is the only case where we might not have a transceiver yet | |
videoTransceiver = config.pc.addTransceiver("video", { direction: "recvonly" }); | |
Janus.log("Adding recvonly video transceiver:", videoTransceiver); | |
} | |
} | |
} | |
} else { | |
if(Janus.webRTCAdapter.browserDetails.browser === "firefox" || Janus.webRTCAdapter.browserDetails.browser === "edge") { | |
mediaConstraints = { | |
offerToReceiveAudio: isAudioRecvEnabled(media), | |
offerToReceiveVideo: isVideoRecvEnabled(media) | |
}; | |
} else { | |
mediaConstraints = { | |
mandatory: { | |
OfferToReceiveAudio: isAudioRecvEnabled(media), | |
OfferToReceiveVideo: isVideoRecvEnabled(media) | |
} | |
}; | |
} | |
} | |
Janus.debug(mediaConstraints); | |
// Check if this is Firefox and we've been asked to do simulcasting | |
var sendVideo = isVideoSendEnabled(media); | |
if(sendVideo && simulcast && Janus.webRTCAdapter.browserDetails.browser === "firefox") { | |
// FIXME Based on https://gist.github.com/voluntas/088bc3cc62094730647b | |
Janus.log("Enabling Simulcasting for Firefox (RID)"); | |
var sender = config.pc.getSenders()[1]; | |
Janus.log(sender); | |
var parameters = sender.getParameters(); | |
Janus.log(parameters); | |
var maxBitrates = getMaxBitrates(callbacks.simulcastMaxBitrates); | |
sender.setParameters({encodings: [ | |
{ rid: "high", active: true, priority: "high", maxBitrate: maxBitrates.high }, | |
{ rid: "medium", active: true, priority: "medium", maxBitrate: maxBitrates.medium }, | |
{ rid: "low", active: true, priority: "low", maxBitrate: maxBitrates.low } | |
]}); | |
} | |
config.pc.createAnswer(mediaConstraints) | |
.then(function(answer) { | |
Janus.debug(answer); | |
// JSON.stringify doesn't work on some WebRTC objects anymore | |
// See https://code.google.com/p/chromium/issues/detail?id=467366 | |
var jsep = { | |
"type": answer.type, | |
"sdp": answer.sdp | |
}; | |
callbacks.customizeSdp(jsep); | |
answer.sdp = jsep.sdp; | |
Janus.log("Setting local description"); | |
if(sendVideo && simulcast) { | |
// This SDP munging only works with Chrome | |
if(Janus.webRTCAdapter.browserDetails.browser === "chrome") { | |
// FIXME Apparently trying to simulcast when answering breaks video in Chrome... | |
//~ Janus.log("Enabling Simulcasting for Chrome (SDP munging)"); | |
//~ answer.sdp = mungeSdpForSimulcasting(answer.sdp); | |
Janus.warn("simulcast=true, but this is an answer, and video breaks in Chrome if we enable it"); | |
} else if(Janus.webRTCAdapter.browserDetails.browser !== "firefox") { | |
Janus.warn("simulcast=true, but this is not Chrome nor Firefox, ignoring"); | |
} | |
} | |
config.mySdp = answer.sdp; | |
config.pc.setLocalDescription(answer) | |
.catch(callbacks.error); | |
config.mediaConstraints = mediaConstraints; | |
if(!config.iceDone && !config.trickle) { | |
// Don't do anything until we have all candidates | |
Janus.log("Waiting for all candidates..."); | |
return; | |
} | |
// If transforms are present, notify Janus that the media is end-to-end encrypted | |
if(config.senderTransforms || config.receiverTransforms) { | |
answer["e2ee"] = true; | |
} | |
callbacks.success(answer); | |
}, callbacks.error); | |
} | |
function sendSDP(handleId, callbacks) { | |
callbacks = callbacks || {}; | |
callbacks.success = (typeof callbacks.success == "function") ? callbacks.success : Janus.noop; | |
callbacks.error = (typeof callbacks.error == "function") ? callbacks.error : Janus.noop; | |
var pluginHandle = pluginHandles[handleId]; | |
if(!pluginHandle || !pluginHandle.webrtcStuff) { | |
Janus.warn("Invalid handle, not sending anything"); | |
return; | |
} | |
var config = pluginHandle.webrtcStuff; | |
Janus.log("Sending offer/answer SDP..."); | |
if(!config.mySdp) { | |
Janus.warn("Local SDP instance is invalid, not sending anything..."); | |
return; | |
} | |
config.mySdp = { | |
"type": config.pc.localDescription.type, | |
"sdp": config.pc.localDescription.sdp | |
}; | |
if(config.trickle === false) | |
config.mySdp["trickle"] = false; | |
Janus.debug(callbacks); | |
config.sdpSent = true; | |
callbacks.success(config.mySdp); | |
} | |
function getVolume(handleId, remote) { | |
var pluginHandle = pluginHandles[handleId]; | |
if(!pluginHandle || !pluginHandle.webrtcStuff) { | |
Janus.warn("Invalid handle"); | |
return 0; | |
} | |
var stream = remote ? "remote" : "local"; | |
var config = pluginHandle.webrtcStuff; | |
if(!config.volume[stream]) | |
config.volume[stream] = { value: 0 }; | |
// Start getting the volume, if audioLevel in getStats is supported (apparently | |
// they're only available in Chrome/Safari right now: https://webrtc-stats.callstats.io/) | |
if(config.pc.getStats && (Janus.webRTCAdapter.browserDetails.browser === "chrome" || | |
Janus.webRTCAdapter.browserDetails.browser === "safari")) { | |
if(remote && !config.remoteStream) { | |
Janus.warn("Remote stream unavailable"); | |
return 0; | |
} else if(!remote && !config.myStream) { | |
Janus.warn("Local stream unavailable"); | |
return 0; | |
} | |
if(!config.volume[stream].timer) { | |
Janus.log("Starting " + stream + " volume monitor"); | |
config.volume[stream].timer = setInterval(function() { | |
config.pc.getStats() | |
.then(function(stats) { | |
stats.forEach(function (res) { | |
if(!res || res.kind !== "audio") | |
return; | |
if((remote && !res.remoteSource) || (!remote && res.type !== "media-source")) | |
return; | |
config.volume[stream].value = (res.audioLevel ? res.audioLevel : 0); | |
}); | |
}); | |
}, 200); | |
return 0; // We don't have a volume to return yet | |
} | |
return config.volume[stream].value; | |
} else { | |
// audioInputLevel and audioOutputLevel seem only available in Chrome? audioLevel | |
// seems to be available on Chrome and Firefox, but they don't seem to work | |
Janus.warn("Getting the " + stream + " volume unsupported by browser"); | |
return 0; | |
} | |
} | |
function isMuted(handleId, video) { | |
var pluginHandle = pluginHandles[handleId]; | |
if(!pluginHandle || !pluginHandle.webrtcStuff) { | |
Janus.warn("Invalid handle"); | |
return true; | |
} | |
var config = pluginHandle.webrtcStuff; | |
if(!config.pc) { | |
Janus.warn("Invalid PeerConnection"); | |
return true; | |
} | |
if(!config.myStream) { | |
Janus.warn("Invalid local MediaStream"); | |
return true; | |
} | |
if(video) { | |
// Check video track | |
if(!config.myStream.getVideoTracks() || config.myStream.getVideoTracks().length === 0) { | |
Janus.warn("No video track"); | |
return true; | |
} | |
return !config.myStream.getVideoTracks()[0].enabled; | |
} else { | |
// Check audio track | |
if(!config.myStream.getAudioTracks() || config.myStream.getAudioTracks().length === 0) { | |
Janus.warn("No audio track"); | |
return true; | |
} | |
return !config.myStream.getAudioTracks()[0].enabled; | |
} | |
} | |
function mute(handleId, video, mute) { | |
var pluginHandle = pluginHandles[handleId]; | |
if(!pluginHandle || !pluginHandle.webrtcStuff) { | |
Janus.warn("Invalid handle"); | |
return false; | |
} | |
var config = pluginHandle.webrtcStuff; | |
if(!config.pc) { | |
Janus.warn("Invalid PeerConnection"); | |
return false; | |
} | |
if(!config.myStream) { | |
Janus.warn("Invalid local MediaStream"); | |
return false; | |
} | |
if(video) { | |
// Mute/unmute video track | |
if(!config.myStream.getVideoTracks() || config.myStream.getVideoTracks().length === 0) { | |
Janus.warn("No video track"); | |
return false; | |
} | |
config.myStream.getVideoTracks()[0].enabled = !mute; | |
return true; | |
} else { | |
// Mute/unmute audio track | |
if(!config.myStream.getAudioTracks() || config.myStream.getAudioTracks().length === 0) { | |
Janus.warn("No audio track"); | |
return false; | |
} | |
config.myStream.getAudioTracks()[0].enabled = !mute; | |
return true; | |
} | |
} | |
function getBitrate(handleId) { | |
var pluginHandle = pluginHandles[handleId]; | |
if(!pluginHandle || !pluginHandle.webrtcStuff) { | |
Janus.warn("Invalid handle"); | |
return "Invalid handle"; | |
} | |
var config = pluginHandle.webrtcStuff; | |
if(!config.pc) | |
return "Invalid PeerConnection"; | |
// Start getting the bitrate, if getStats is supported | |
if(config.pc.getStats) { | |
if(!config.bitrate.timer) { | |
Janus.log("Starting bitrate timer (via getStats)"); | |
config.bitrate.timer = setInterval(function() { | |
config.pc.getStats() | |
.then(function(stats) { | |
stats.forEach(function (res) { | |
if(!res) | |
return; | |
var inStats = false; | |
// Check if these are statistics on incoming media | |
if((res.mediaType === "video" || res.id.toLowerCase().indexOf("video") > -1) && | |
res.type === "inbound-rtp" && res.id.indexOf("rtcp") < 0) { | |
// New stats | |
inStats = true; | |
} else if(res.type == 'ssrc' && res.bytesReceived && | |
(res.googCodecName === "VP8" || res.googCodecName === "")) { | |
// Older Chromer versions | |
inStats = true; | |
} | |
// Parse stats now | |
if(inStats) { | |
config.bitrate.bsnow = res.bytesReceived; | |
config.bitrate.tsnow = res.timestamp; | |
if(config.bitrate.bsbefore === null || config.bitrate.tsbefore === null) { | |
// Skip this round | |
config.bitrate.bsbefore = config.bitrate.bsnow; | |
config.bitrate.tsbefore = config.bitrate.tsnow; | |
} else { | |
// Calculate bitrate | |
var timePassed = config.bitrate.tsnow - config.bitrate.tsbefore; | |
if(Janus.webRTCAdapter.browserDetails.browser === "safari") | |
timePassed = timePassed/1000; // Apparently the timestamp is in microseconds, in Safari | |
var bitRate = Math.round((config.bitrate.bsnow - config.bitrate.bsbefore) * 8 / timePassed); | |
if(Janus.webRTCAdapter.browserDetails.browser === "safari") | |
bitRate = parseInt(bitRate/1000); | |
config.bitrate.value = bitRate + ' kbits/sec'; | |
//~ Janus.log("Estimated bitrate is " + config.bitrate.value); | |
config.bitrate.bsbefore = config.bitrate.bsnow; | |
config.bitrate.tsbefore = config.bitrate.tsnow; | |
} | |
} | |
}); | |
}); | |
}, 1000); | |
return "0 kbits/sec"; // We don't have a bitrate value yet | |
} | |
return config.bitrate.value; | |
} else { | |
Janus.warn("Getting the video bitrate unsupported by browser"); | |
return "Feature unsupported by browser"; | |
} | |
} | |
function webrtcError(error) { | |
Janus.error("WebRTC error:", error); | |
} | |
function cleanupWebrtc(handleId, hangupRequest) { | |
Janus.log("Cleaning WebRTC stuff"); | |
var pluginHandle = pluginHandles[handleId]; | |
if(!pluginHandle) { | |
// Nothing to clean | |
return; | |
} | |
var config = pluginHandle.webrtcStuff; | |
if(config) { | |
if(hangupRequest === true) { | |
// Send a hangup request (we don't really care about the response) | |
var request = { "janus": "hangup", "transaction": Janus.randomString(12) }; | |
if(pluginHandle.token) | |
request["token"] = pluginHandle.token; | |
if(apisecret) | |
request["apisecret"] = apisecret; | |
Janus.debug("Sending hangup request (handle=" + handleId + "):"); | |
Janus.debug(request); | |
if(websockets) { | |
request["session_id"] = sessionId; | |
request["handle_id"] = handleId; | |
ws.send(JSON.stringify(request)); | |
} else { | |
Janus.httpAPICall(server + "/" + sessionId + "/" + handleId, { | |
verb: 'POST', | |
withCredentials: withCredentials, | |
body: request | |
}); | |
} | |
} | |
// Cleanup stack | |
config.remoteStream = null; | |
if(config.volume) { | |
if(config.volume["local"] && config.volume["local"].timer) | |
clearInterval(config.volume["local"].timer); | |
if(config.volume["remote"] && config.volume["remote"].timer) | |
clearInterval(config.volume["remote"].timer); | |
} | |
config.volume = {}; | |
if(config.bitrate.timer) | |
clearInterval(config.bitrate.timer); | |
config.bitrate.timer = null; | |
config.bitrate.bsnow = null; | |
config.bitrate.bsbefore = null; | |
config.bitrate.tsnow = null; | |
config.bitrate.tsbefore = null; | |
config.bitrate.value = null; | |
if(!config.streamExternal && config.myStream) { | |
Janus.log("Stopping local stream tracks"); | |
Janus.stopAllTracks(config.myStream); | |
} | |
config.streamExternal = false; | |
config.myStream = null; | |
// Close PeerConnection | |
try { | |
config.pc.close(); | |
} catch(e) { | |
// Do nothing | |
} | |
config.pc = null; | |
config.candidates = null; | |
config.mySdp = null; | |
config.remoteSdp = null; | |
config.iceDone = false; | |
config.dataChannel = {}; | |
config.dtmfSender = null; | |
config.senderTransforms = null; | |
config.receiverTransforms = null; | |
} | |
pluginHandle.oncleanup(); | |
} | |
// Helper method to munge an SDP to enable simulcasting (Chrome only) | |
function mungeSdpForSimulcasting(sdp) { | |
// Let's munge the SDP to add the attributes for enabling simulcasting | |
// (based on https://gist.github.com/ggarber/a19b4c33510028b9c657) | |
var lines = sdp.split("\r\n"); | |
var video = false; | |
var ssrc = [ -1 ], ssrc_fid = [ -1 ]; | |
var cname = null, msid = null, mslabel = null, label = null; | |
var insertAt = -1; | |
for(var i=0; i<lines.length; i++) { | |
var mline = lines[i].match(/m=(\w+) */); | |
if(mline) { | |
var medium = mline[1]; | |
if(medium === "video") { | |
// New video m-line: make sure it's the first one | |
if(ssrc[0] < 0) { | |
video = true; | |
} else { | |
// We're done, let's add the new attributes here | |
insertAt = i; | |
break; | |
} | |
} else { | |
// New non-video m-line: do we have what we were looking for? | |
if(ssrc[0] > -1) { | |
// We're done, let's add the new attributes here | |
insertAt = i; | |
break; | |
} | |
} | |
continue; | |
} | |
if(!video) | |
continue; | |
var fid = lines[i].match(/a=ssrc-group:FID (\d+) (\d+)/); | |
if(fid) { | |
ssrc[0] = fid[1]; | |
ssrc_fid[0] = fid[2]; | |
lines.splice(i, 1); i--; | |
continue; | |
} | |
if(ssrc[0]) { | |
var match = lines[i].match('a=ssrc:' + ssrc[0] + ' cname:(.+)') | |
if(match) { | |
cname = match[1]; | |
} | |
match = lines[i].match('a=ssrc:' + ssrc[0] + ' msid:(.+)') | |
if(match) { | |
msid = match[1]; | |
} | |
match = lines[i].match('a=ssrc:' + ssrc[0] + ' mslabel:(.+)') | |
if(match) { | |
mslabel = match[1]; | |
} | |
match = lines[i].match('a=ssrc:' + ssrc[0] + ' label:(.+)') | |
if(match) { | |
label = match[1]; | |
} | |
if(lines[i].indexOf('a=ssrc:' + ssrc_fid[0]) === 0) { | |
lines.splice(i, 1); i--; | |
continue; | |
} | |
if(lines[i].indexOf('a=ssrc:' + ssrc[0]) === 0) { | |
lines.splice(i, 1); i--; | |
continue; | |
} | |
} | |
if(lines[i].length == 0) { | |
lines.splice(i, 1); i--; | |
continue; | |
} | |
} | |
if(ssrc[0] < 0) { | |
// Couldn't find a FID attribute, let's just take the first video SSRC we find | |
insertAt = -1; | |
video = false; | |
for(var i=0; i<lines.length; i++) { | |
var mline = lines[i].match(/m=(\w+) */); | |
if(mline) { | |
var medium = mline[1]; | |
if(medium === "video") { | |
// New video m-line: make sure it's the first one | |
if(ssrc[0] < 0) { | |
video = true; | |
} else { | |
// We're done, let's add the new attributes here | |
insertAt = i; | |
break; | |
} | |
} else { | |
// New non-video m-line: do we have what we were looking for? | |
if(ssrc[0] > -1) { | |
// We're done, let's add the new attributes here | |
insertAt = i; | |
break; | |
} | |
} | |
continue; | |
} | |
if(!video) | |
continue; | |
if(ssrc[0] < 0) { | |
var value = lines[i].match(/a=ssrc:(\d+)/); | |
if(value) { | |
ssrc[0] = value[1]; | |
lines.splice(i, 1); i--; | |
continue; | |
} | |
} else { | |
var match = lines[i].match('a=ssrc:' + ssrc[0] + ' cname:(.+)') | |
if(match) { | |
cname = match[1]; | |
} | |
match = lines[i].match('a=ssrc:' + ssrc[0] + ' msid:(.+)') | |
if(match) { | |
msid = match[1]; | |
} | |
match = lines[i].match('a=ssrc:' + ssrc[0] + ' mslabel:(.+)') | |
if(match) { | |
mslabel = match[1]; | |
} | |
match = lines[i].match('a=ssrc:' + ssrc[0] + ' label:(.+)') | |
if(match) { | |
label = match[1]; | |
} | |
if(lines[i].indexOf('a=ssrc:' + ssrc_fid[0]) === 0) { | |
lines.splice(i, 1); i--; | |
continue; | |
} | |
if(lines[i].indexOf('a=ssrc:' + ssrc[0]) === 0) { | |
lines.splice(i, 1); i--; | |
continue; | |
} | |
} | |
if(lines[i].length === 0) { | |
lines.splice(i, 1); i--; | |
continue; | |
} | |
} | |
} | |
if(ssrc[0] < 0) { | |
// Still nothing, let's just return the SDP we were asked to munge | |
Janus.warn("Couldn't find the video SSRC, simulcasting NOT enabled"); | |
return sdp; | |
} | |
if(insertAt < 0) { | |
// Append at the end | |
insertAt = lines.length; | |
} | |
// Generate a couple of SSRCs (for retransmissions too) | |
// Note: should we check if there are conflicts, here? | |
ssrc[1] = Math.floor(Math.random()*0xFFFFFFFF); | |
ssrc[2] = Math.floor(Math.random()*0xFFFFFFFF); | |
ssrc_fid[1] = Math.floor(Math.random()*0xFFFFFFFF); | |
ssrc_fid[2] = Math.floor(Math.random()*0xFFFFFFFF); | |
// Add attributes to the SDP | |
for(var i=0; i<ssrc.length; i++) { | |
if(cname) { | |
lines.splice(insertAt, 0, 'a=ssrc:' + ssrc[i] + ' cname:' + cname); | |
insertAt++; | |
} | |
if(msid) { | |
lines.splice(insertAt, 0, 'a=ssrc:' + ssrc[i] + ' msid:' + msid); | |
insertAt++; | |
} | |
if(mslabel) { | |
lines.splice(insertAt, 0, 'a=ssrc:' + ssrc[i] + ' mslabel:' + mslabel); | |
insertAt++; | |
} | |
if(label) { | |
lines.splice(insertAt, 0, 'a=ssrc:' + ssrc[i] + ' label:' + label); | |
insertAt++; | |
} | |
// Add the same info for the retransmission SSRC | |
if(cname) { | |
lines.splice(insertAt, 0, 'a=ssrc:' + ssrc_fid[i] + ' cname:' + cname); | |
insertAt++; | |
} | |
if(msid) { | |
lines.splice(insertAt, 0, 'a=ssrc:' + ssrc_fid[i] + ' msid:' + msid); | |
insertAt++; | |
} | |
if(mslabel) { | |
lines.splice(insertAt, 0, 'a=ssrc:' + ssrc_fid[i] + ' mslabel:' + mslabel); | |
insertAt++; | |
} | |
if(label) { | |
lines.splice(insertAt, 0, 'a=ssrc:' + ssrc_fid[i] + ' label:' + label); | |
insertAt++; | |
} | |
} | |
lines.splice(insertAt, 0, 'a=ssrc-group:FID ' + ssrc[2] + ' ' + ssrc_fid[2]); | |
lines.splice(insertAt, 0, 'a=ssrc-group:FID ' + ssrc[1] + ' ' + ssrc_fid[1]); | |
lines.splice(insertAt, 0, 'a=ssrc-group:FID ' + ssrc[0] + ' ' + ssrc_fid[0]); | |
lines.splice(insertAt, 0, 'a=ssrc-group:SIM ' + ssrc[0] + ' ' + ssrc[1] + ' ' + ssrc[2]); | |
sdp = lines.join("\r\n"); | |
if(!sdp.endsWith("\r\n")) | |
sdp += "\r\n"; | |
return sdp; | |
} | |
// Helper methods to parse a media object | |
function isAudioSendEnabled(media) { | |
Janus.debug("isAudioSendEnabled:", media); | |
if(!media) | |
return true; // Default | |
if(media.audio === false) | |
return false; // Generic audio has precedence | |
if(media.audioSend === undefined || media.audioSend === null) | |
return true; // Default | |
return (media.audioSend === true); | |
} | |
function isAudioSendRequired(media) { | |
Janus.debug("isAudioSendRequired:", media); | |
if(!media) | |
return false; // Default | |
if(media.audio === false || media.audioSend === false) | |
return false; // If we're not asking to capture audio, it's not required | |
if(media.failIfNoAudio === undefined || media.failIfNoAudio === null) | |
return false; // Default | |
return (media.failIfNoAudio === true); | |
} | |
function isAudioRecvEnabled(media) { | |
Janus.debug("isAudioRecvEnabled:", media); | |
if(!media) | |
return true; // Default | |
if(media.audio === false) | |
return false; // Generic audio has precedence | |
if(media.audioRecv === undefined || media.audioRecv === null) | |
return true; // Default | |
return (media.audioRecv === true); | |
} | |
function isVideoSendEnabled(media) { | |
Janus.debug("isVideoSendEnabled:", media); | |
if(!media) | |
return true; // Default | |
if(media.video === false) | |
return false; // Generic video has precedence | |
if(media.videoSend === undefined || media.videoSend === null) | |
return true; // Default | |
return (media.videoSend === true); | |
} | |
function isVideoSendRequired(media) { | |
Janus.debug("isVideoSendRequired:", media); | |
if(!media) | |
return false; // Default | |
if(media.video === false || media.videoSend === false) | |
return false; // If we're not asking to capture video, it's not required | |
if(media.failIfNoVideo === undefined || media.failIfNoVideo === null) | |
return false; // Default | |
return (media.failIfNoVideo === true); | |
} | |
function isVideoRecvEnabled(media) { | |
Janus.debug("isVideoRecvEnabled:", media); | |
if(!media) | |
return true; // Default | |
if(media.video === false) | |
return false; // Generic video has precedence | |
if(media.videoRecv === undefined || media.videoRecv === null) | |
return true; // Default | |
return (media.videoRecv === true); | |
} | |
function isScreenSendEnabled(media) { | |
Janus.debug("isScreenSendEnabled:", media); | |
if (!media) | |
return false; | |
if (typeof media.video !== 'object' || typeof media.video.mandatory !== 'object') | |
return false; | |
var constraints = media.video.mandatory; | |
if (constraints.chromeMediaSource) | |
return constraints.chromeMediaSource === 'desktop' || constraints.chromeMediaSource === 'screen'; | |
else if (constraints.mozMediaSource) | |
return constraints.mozMediaSource === 'window' || constraints.mozMediaSource === 'screen'; | |
else if (constraints.mediaSource) | |
return constraints.mediaSource === 'window' || constraints.mediaSource === 'screen'; | |
return false; | |
} | |
function isDataEnabled(media) { | |
Janus.debug("isDataEnabled:", media); | |
if(Janus.webRTCAdapter.browserDetails.browser === "edge") { | |
Janus.warn("Edge doesn't support data channels yet"); | |
return false; | |
} | |
if(media === undefined || media === null) | |
return false; // Default | |
return (media.data === true); | |
} | |
function isTrickleEnabled(trickle) { | |
Janus.debug("isTrickleEnabled:", trickle); | |
return (trickle === false) ? false : true; | |
} | |
function soundMute(handleId, addTrack) { | |
var pluginHandle = pluginHandles[handleId]; | |
} | |
} | |
module.exports = Janus; |
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