/**
* <blockquote class="info">
* Note that Edge browser does not support renegotiation.
* For MCU enabled Peer connections with <code>options.mcuUseRenegoRestart</code> set to <code>false</code>
* in the <a href="#method_init"><code>init()</code> method</a>, the restart functionality may differ, you
* may learn more about how to workaround it
* <a href="http://support.temasys.io/support/discussions/topics/12000002853">in this article here</a>.
* For restarts with Peers connecting from Android, iOS or C++ SDKs, restarts might not work as written in
* <a href="http://support.temasys.io/support/discussions/topics/12000005188">in this article here</a>.
* Note that this functionality should be used when Peer connection stream freezes during a connection.
* For a better user experience for only MCU enabled Peer connections, the functionality is throttled when invoked many
* times in less than the milliseconds interval configured in the <a href="#method_init"><code>init()</code> method</a>.
* </blockquote>
* Function that refreshes Peer connections to update with the current streaming.
* @method refreshConnection
* @param {String|Array} [targetPeerId] <blockquote class="info">
* Note that this is ignored if MCU is enabled for the App Key provided in
* <a href="#method_init"><code>init()</code> method</a>. <code>refreshConnection()</code> will "refresh"
* all Peer connections. See the <u>Event Sequence</u> for more information.</blockquote>
* The target Peer ID to refresh connection with.
* - When provided as an Array, it will refresh all connections with all the Peer IDs provided.
* - When not provided, it will refresh all the currently connected Peers in the Room.
* @param {Boolean} [iceRestart=false] <blockquote class="info">
* Note that this flag will not be honoured for MCU enabled Peer connections where
* <code>options.mcuUseRenegoRestart</code> flag is set to <code>false</code> as it is not necessary since for MCU
* "restart" case is to invoke <a href="#method_joinRoom"><code>joinRoom()</code> method</a> again, or that it is
* not supported by the MCU.</blockquote>
* The flag if ICE connections should restart when refreshing Peer connections.
* <small>This is used when ICE connection state is <code>FAILED</code> or <code>DISCONNECTED</code>, which state
* can be retrieved with the <a href="#event_iceConnectionState"><code>iceConnectionState</code> event</a>.</small>
* @param {JSON} [options] <blockquote class="info">
* Note that for MCU connections, the <code>bandwidth</code> or <code>googleXBandwidth</code>
* settings will override for all Peers or the current Room connection session settings.</blockquote>
* The custom Peer configuration settings.
* @param {JSON} [options.bandwidth] The configuration to set the maximum streaming bandwidth to send to Peers.
* <small>Object signature follows <a href="#method_joinRoom"><code>joinRoom()</code> method</a>
* <code>options.bandwidth</code> settings.</small>
* @param {JSON} [options.googleXBandwidth] The configuration to set the experimental google
* video streaming bandwidth sent to Peers.
* <small>Object signature follows <a href="#method_joinRoom"><code>joinRoom()</code> method</a>
* <code>options.googleXBandwidth</code> settings.</small>
* @param {Function} [callback] The callback function fired when request has completed.
* <small>Function parameters signature is <code>function (error, success)</code></small>
* <small>Function request completion is determined by the <a href="#event_peerRestart">
* <code>peerRestart</code> event</a> triggering <code>isSelfInitiateRestart</code> parameter payload
* value as <code>true</code> for all Peers targeted for request success.</small>
* @param {JSON} callback.error The error result in request.
* <small>Defined as <code>null</code> when there are no errors in request</small>
* @param {Array} callback.error.listOfPeers The list of Peer IDs targeted.
* @param {JSON} callback.error.refreshErrors The list of Peer connection refresh errors.
* @param {Error|String} callback.error.refreshErrors.#peerId The Peer connection refresh error associated
* with the Peer ID defined in <code>#peerId</code> property.
* <small>If <code>#peerId</code> value is <code>"self"</code>, it means that it is the error when there
* is no Peer connections to refresh with.</small>
* @param {JSON} callback.error.refreshSettings The list of Peer connection refresh settings.
* @param {JSON} callback.error.refreshSettings.#peerId The Peer connection refresh settings associated
* with the Peer ID defined in <code>#peerId</code> property.
* @param {Boolean} callback.error.refreshSettings.#peerId.iceRestart The flag if ICE restart is enabled for
* this Peer connection refresh session.
* @param {JSON} callback.error.refreshSettings.#peerId.customSettings The Peer connection custom settings.
* <small>Object signature follows <a href="#method_getPeersCustomSettings"><code>getPeersCustomSettings</code>
* method</a> returned per <code>#peerId</code> object.</small>
* @param {JSON} callback.success The success result in request.
* <small>Defined as <code>null</code> when there are errors in request</small>
* @param {Array} callback.success.listOfPeers The list of Peer IDs targeted.
* @param {JSON} callback.success.refreshSettings The list of Peer connection refresh settings.
* @param {JSON} callback.success.refreshSettings.#peerId The Peer connection refresh settings associated
* with the Peer ID defined in <code>#peerId</code> property.
* @param {Boolean} callback.success.refreshSettings.#peerId.iceRestart The flag if ICE restart is enabled for
* this Peer connection refresh session.
* @param {JSON} callback.success.refreshSettings.#peerId.customSettings The Peer connection custom settings.
* <small>Object signature follows <a href="#method_getPeersCustomSettings"><code>getPeersCustomSettings</code>
* method</a> returned per <code>#peerId</code> object.</small>
* @trigger <ol class="desc-seq">
* <li>Checks if MCU is enabled for App Key provided in <a href="#method_init"><code>init()</code> method</a><ol>
* <li>If MCU is enabled: <ol><li>If there are connected Peers in the Room: <ol>
* <li><a href="#event_peerRestart"><code>peerRestart</code> event</a> triggers parameter payload
* <code>isSelfInitiateRestart</code> value as <code>true</code> for all connected Peer connections.</li>
* <li><a href="#event_serverPeerRestart"><code>serverPeerRestart</code> event</a> triggers for
* connected MCU server Peer connection.</li></ol></li>
* <li>If <code>options.mcuUseRenegoRestart</code> value is <code>false</code> set in the
* <a href="#method_init"><code>init()</code> method</a>: <ol><li>
* Invokes <a href="#method_joinRoom"><code>joinRoom()</code> method</a> <small><code>refreshConnection()</code>
* will retain the User session information except the Peer ID will be a different assigned ID due to restarting the
* Room session.</small> <ol><li>If request has errors <ol><li><b>ABORT</b> and return error.
* </li></ol></li></ol></li></ol></li></ol></li>
* <li>Else: <ol><li>If there are connected Peers in the Room: <ol>
* <li>Refresh connections for all targeted Peers. <ol>
* <li>If Peer connection exists: <ol>
* <li><a href="#event_peerRestart"><code>peerRestart</code> event</a> triggers parameter payload
* <code>isSelfInitiateRestart</code> value as <code>true</code> for all targeted Peer connections.</li></ol></li>
* <li>Else: <ol><li><b>ABORT</b> and return error.</li></ol></li>
* </ol></li></ol></li></ol></ol></li></ol></li></ol>
* @example
* // Example 1: Refreshing a Peer connection
* function refreshFrozenVideoStream (peerId) {
* skylinkDemo.refreshConnection(peerId, function (error, success) {
* if (error) return;
* console.log("Refreshing connection for '" + peerId + "'");
* });
* }
*
* // Example 2: Refreshing a list of Peer connections
* function refreshFrozenVideoStreamGroup (peerIdA, peerIdB) {
* skylinkDemo.refreshConnection([peerIdA, peerIdB], function (error, success) {
* if (error) {
* if (error.transferErrors[peerIdA]) {
* console.error("Failed refreshing connection for '" + peerIdA + "'");
* } else {
* console.log("Refreshing connection for '" + peerIdA + "'");
* }
* if (error.transferErrors[peerIdB]) {
* console.error("Failed refreshing connection for '" + peerIdB + "'");
* } else {
* console.log("Refreshing connection for '" + peerIdB + "'");
* }
* } else {
* console.log("Refreshing connection for '" + peerIdA + "' and '" + peerIdB + "'");
* }
* });
* }
*
* // Example 3: Refreshing all Peer connections
* function refreshFrozenVideoStreamAll () {
* skylinkDemo.refreshConnection(function (error, success) {
* if (error) {
* for (var i = 0; i < error.listOfPeers.length; i++) {
* if (error.refreshErrors[error.listOfPeers[i]]) {
* console.error("Failed refreshing connection for '" + error.listOfPeers[i] + "'");
* } else {
* console.info("Refreshing connection for '" + error.listOfPeers[i] + "'");
* }
* }
* } else {
* console.log("Refreshing connection for all Peers", success.listOfPeers);
* }
* });
* }
*
* // Example 4: Refresh Peer connection when ICE connection has failed or disconnected
* // and do a ICE connection refresh (only for non-MCU case)
* skylinkDemo.on("iceConnectionState", function (state, peerId) {
* if (!usesMCUKey && [skylinkDemo.ICE_CONNECTION_STATE.FAILED,
* skylinkDemo.ICE_CONNECTION_STATE.DISCONNECTED].indexOf(state) > -1) {
* skylinkDemo.refreshConnection(peerId, true);
* }
* });
* @for Skylink
* @since 0.5.5
*/
Skylink.prototype.refreshConnection = function(targetPeerId, iceRestart, options, callback) {
var self = this;
var listOfPeers = Object.keys(self._peerConnections);
var doIceRestart = false;
var bwOptions = {};
if(Array.isArray(targetPeerId)) {
listOfPeers = targetPeerId;
} else if (typeof targetPeerId === 'string') {
listOfPeers = [targetPeerId];
} else if (typeof targetPeerId === 'boolean') {
doIceRestart = targetPeerId;
} else if (targetPeerId && typeof targetPeerId === 'object') {
bwOptions = targetPeerId;
} else if (typeof targetPeerId === 'function') {
callback = targetPeerId;
}
if (typeof iceRestart === 'boolean') {
doIceRestart = iceRestart;
} else if (iceRestart && typeof iceRestart === 'object') {
bwOptions = iceRestart;
} else if (typeof iceRestart === 'function') {
callback = iceRestart;
}
if (options && typeof options === 'object') {
bwOptions = options;
} else if (typeof options === 'function') {
callback = options;
}
var emitErrorForPeersFn = function (error) {
log.error(error);
if (typeof callback === 'function') {
var listOfPeerErrors = {};
if (listOfPeers.length === 0) {
listOfPeerErrors.self = new Error(error);
} else {
for (var i = 0; i < listOfPeers.length; i++) {
listOfPeerErrors[listOfPeers[i]] = new Error(error);
}
}
callback({
refreshErrors: listOfPeerRestartErrors,
listOfPeers: listOfPeers
}, null);
}
};
if (listOfPeers.length === 0 && !(self._hasMCU && !self._initOptions.mcuUseRenegoRestart)) {
emitErrorForPeersFn('There is currently no peer connections to restart');
return;
}
if (AdapterJS.webrtcDetectedBrowser === 'edge') {
emitErrorForPeersFn('Edge browser currently does not support renegotiation.');
return;
}
self._throttle(function (runFn) {
if (!runFn && self._hasMCU && !self._initOptions.mcuUseRenegoRestart) {
if (self._initOptions.throttlingShouldThrowError) {
emitErrorForPeersFn('Unable to run as throttle interval has not reached (' + self._initOptions.throttleIntervals.refreshConnection + 'ms).');
}
return;
}
self._refreshPeerConnection(listOfPeers, doIceRestart, bwOptions, callback);
}, 'refreshConnection', self._initOptions.throttleIntervals.refreshConnection);
};
/**
* Function that refresh connections.
* @method _refreshPeerConnection
* @private
* @for Skylink
* @since 0.6.15
*/
Skylink.prototype._refreshPeerConnection = function(listOfPeers, doIceRestart, bwOptions, callback) {
var self = this;
var listOfPeerRestarts = [];
var error = '';
var listOfPeerRestartErrors = {};
var listOfPeersSettings = {};
// To fix jshint dont put functions within a loop
var refreshSinglePeerCallback = function (peerId) {
return function (error) {
if (listOfPeerRestarts.indexOf(peerId) === -1) {
if (error) {
log.error([peerId, 'RTCPeerConnection', null, 'Failed restarting for peer'], error);
listOfPeerRestartErrors[peerId] = error;
} else {
listOfPeersSettings[peerId] = {
iceRestart: !self._hasMCU && self._peerInformations[peerId] && self._peerInformations[peerId].config &&
self._peerInformations[peerId].config.enableIceRestart && self._enableIceRestart && doIceRestart,
customSettings: self.getPeersCustomSettings()[peerId] || {}
};
}
listOfPeerRestarts.push(peerId);
}
if (listOfPeerRestarts.length === listOfPeers.length) {
if (typeof callback === 'function') {
log.log([null, 'PeerConnection', null, 'Invoked all peers to restart. Firing callback']);
if (Object.keys(listOfPeerRestartErrors).length > 0) {
callback({
refreshErrors: listOfPeerRestartErrors,
listOfPeers: listOfPeers,
refreshSettings: listOfPeersSettings
}, null);
} else {
callback(null, {
listOfPeers: listOfPeers,
refreshSettings: listOfPeersSettings
});
}
}
}
};
};
var refreshSinglePeer = function(peerId, peerCallback){
if (!self._peerConnections[peerId]) {
error = 'There is currently no existing peer connection made ' +
'with the peer. Unable to restart connection';
log.error([peerId, null, null, error]);
peerCallback(error);
return;
}
log.log([peerId, 'PeerConnection', null, 'Restarting peer connection']);
// do a hard reset on variable object
self._restartPeerConnection(peerId, doIceRestart, bwOptions, peerCallback);
};
if(!self._hasMCU) {
var i;
for (i = 0; i < listOfPeers.length; i++) {
var peerId = listOfPeers[i];
if (Object.keys(self._peerConnections).indexOf(peerId) > -1) {
refreshSinglePeer(peerId, refreshSinglePeerCallback(peerId));
} else {
error = 'Peer connection with peer does not exists. Unable to restart';
log.error([peerId, 'PeerConnection', null, error]);
refreshSinglePeerCallback(peerId)(error);
}
}
} else {
self._restartMCUConnection(callback, doIceRestart, bwOptions);
}
};
/**
* <blockquote class="info">
* Note that this is not well supported in the Edge browser.
* </blockquote>
* Function that retrieves Peer connection bandwidth and ICE connection stats.
* @method getConnectionStatus
* @param {String|Array} [targetPeerId] The target Peer ID to retrieve connection stats from.
* - When provided as an Array, it will retrieve all connection stats from all the Peer IDs provided.
* - When not provided, it will retrieve all connection stats from the currently connected Peers in the Room.
* @param {Function} [callback] The callback function fired when request has completed.
* <small>Function parameters signature is <code>function (error, success)</code></small>
* <small>Function request completion is determined by the <a href="#event_getConnectionStatusStateChange">
* <code>getConnectionStatusStateChange</code> event</a> triggering <code>state</code> parameter payload
* value as <code>RETRIEVE_SUCCESS</code> for all Peers targeted for request success.</small>
* [Rel: Skylink.GET_CONNECTION_STATUS_STATE]
* @param {JSON} callback.error The error result in request.
* <small>Defined as <code>null</code> when there are no errors in request</small>
* @param {Array} callback.error.listOfPeers The list of Peer IDs targeted.
* @param {JSON} callback.error.retrievalErrors The list of Peer connection stats retrieval errors.
* @param {Error|String} callback.error.retrievalErrors.#peerId The Peer connection stats retrieval error associated
* with the Peer ID defined in <code>#peerId</code> property.
* <small>If <code>#peerId</code> value is <code>"self"</code>, it means that it is the error when there
* are no Peer connections to refresh with.</small>
* @param {JSON} callback.error.connectionStats The list of Peer connection stats.
* <small>These are the Peer connection stats that has been managed to be successfully retrieved.</small>
* @param {JSON} callback.error.connectionStats.#peerId The Peer connection stats associated with
* the Peer ID defined in <code>#peerId</code> property.
* <small>Object signature matches the <code>stats</code> parameter payload received in the
* <a href="#event_getConnectionStatusStateChange"><code>getConnectionStatusStateChange</code> event</a>.</small>
* @param {JSON} callback.success The success result in request.
* <small>Defined as <code>null</code> when there are errors in request</small>
* @param {Array} callback.success.listOfPeers The list of Peer IDs targeted.
* @param {JSON} callback.success.connectionStats The list of Peer connection stats.
* @param {JSON} callback.success.connectionStats.#peerId The Peer connection stats associated with
* the Peer ID defined in <code>#peerId</code> property.
* <small>Object signature matches the <code>stats</code> parameter payload received in the
* <a href="#event_getConnectionStatusStateChange"><code>getConnectionStatusStateChange</code> event</a>.</small>
* @trigger <ol class="desc-seq">
* <li>Retrieves Peer connection stats for all targeted Peers. <ol>
* <li>If Peer connection has closed or does not exists: <small>This can be checked with
* <a href="#event_peerConnectionState"><code>peerConnectionState</code> event</a>
* triggering parameter payload <code>state</code> as <code>CLOSED</code> for Peer.</small> <ol>
* <li><a href="#event_getConnectionStatusStateChange"> <code>getConnectionStatusStateChange</code> event</a>
* triggers parameter payload <code>state</code> as <code>RETRIEVE_ERROR</code>.</li>
* <li><b>ABORT</b> and return error.</li></ol></li>
* <li><a href="#event_getConnectionStatusStateChange"><code>getConnectionStatusStateChange</code> event</a>
* triggers parameter payload <code>state</code> as <code>RETRIEVING</code>.</li>
* <li>Received response from retrieval. <ol>
* <li>If retrieval was successful: <ol>
* <li><a href="#event_getConnectionStatusStateChange"><code>getConnectionStatusStateChange</code> event</a>
* triggers parameter payload <code>state</code> as <code>RETRIEVE_SUCCESS</code>.</li></ol></li>
* <li>Else: <ol>
* <li><a href="#event_getConnectionStatusStateChange"> <code>getConnectionStatusStateChange</code> event</a>
* triggers parameter payload <code>state</code> as <code>RETRIEVE_ERROR</code>.</li>
* </ol></li></ol></li></ol></li></ol>
* @example
* // Example 1: Retrieve a Peer connection stats
* function startBWStatsInterval (peerId) {
* setInterval(function () {
* skylinkDemo.getConnectionStatus(peerId, function (error, success) {
* if (error) return;
* var sendVideoBytes = success.connectionStats[peerId].video.sending.bytes;
* var sendAudioBytes = success.connectionStats[peerId].audio.sending.bytes;
* var recvVideoBytes = success.connectionStats[peerId].video.receiving.bytes;
* var recvAudioBytes = success.connectionStats[peerId].audio.receiving.bytes;
* var localCandidate = success.connectionStats[peerId].selectedCandidate.local;
* var remoteCandidate = success.connectionStats[peerId].selectedCandidate.remote;
* console.log("Sending audio (" + sendAudioBytes + "bps) video (" + sendVideoBytes + ")");
* console.log("Receiving audio (" + recvAudioBytes + "bps) video (" + recvVideoBytes + ")");
* console.log("Local candidate: " + localCandidate.ipAddress + ":" + localCandidate.portNumber +
* "?transport=" + localCandidate.transport + " (type: " + localCandidate.candidateType + ")");
* console.log("Remote candidate: " + remoteCandidate.ipAddress + ":" + remoteCandidate.portNumber +
* "?transport=" + remoteCandidate.transport + " (type: " + remoteCandidate.candidateType + ")");
* });
* }, 1000);
* }
*
* // Example 2: Retrieve a list of Peer connection stats
* function printConnStats (peerId, data) {
* if (!data.connectionStats[peerId]) return;
* var sendVideoBytes = data.connectionStats[peerId].video.sending.bytes;
* var sendAudioBytes = data.connectionStats[peerId].audio.sending.bytes;
* var recvVideoBytes = data.connectionStats[peerId].video.receiving.bytes;
* var recvAudioBytes = data.connectionStats[peerId].audio.receiving.bytes;
* var localCandidate = data.connectionStats[peerId].selectedCandidate.local;
* var remoteCandidate = data.connectionStats[peerId].selectedCandidate.remote;
* console.log(peerId + " - Sending audio (" + sendAudioBytes + "bps) video (" + sendVideoBytes + ")");
* console.log(peerId + " - Receiving audio (" + recvAudioBytes + "bps) video (" + recvVideoBytes + ")");
* console.log(peerId + " - Local candidate: " + localCandidate.ipAddress + ":" + localCandidate.portNumber +
* "?transport=" + localCandidate.transport + " (type: " + localCandidate.candidateType + ")");
* console.log(peerId + " - Remote candidate: " + remoteCandidate.ipAddress + ":" + remoteCandidate.portNumber +
* "?transport=" + remoteCandidate.transport + " (type: " + remoteCandidate.candidateType + ")");
* }
*
* function startBWStatsInterval (peerIdA, peerIdB) {
* setInterval(function () {
* skylinkDemo.getConnectionStatus([peerIdA, peerIdB], function (error, success) {
* if (error) {
* printConnStats(peerIdA, error.connectionStats);
* printConnStats(peerIdB, error.connectionStats);
* } else {
* printConnStats(peerIdA, success.connectionStats);
* printConnStats(peerIdB, success.connectionStats);
* }
* });
* }, 1000);
* }
*
* // Example 3: Retrieve all Peer connection stats
* function printConnStats (listOfPeers, data) {
* listOfPeers.forEach(function (peerId) {
* if (!data.connectionStats[peerId]) return;
* var sendVideoBytes = data.connectionStats[peerId].video.sending.bytes;
* var sendAudioBytes = data.connectionStats[peerId].audio.sending.bytes;
* var recvVideoBytes = data.connectionStats[peerId].video.receiving.bytes;
* var recvAudioBytes = data.connectionStats[peerId].audio.receiving.bytes;
* var localCandidate = data.connectionStats[peerId].selectedCandidate.local;
* var remoteCandidate = data.connectionStats[peerId].selectedCandidate.remote;
* console.log(peerId + " - Sending audio (" + sendAudioBytes + "bps) video (" + sendVideoBytes + ")");
* console.log(peerId + " - Receiving audio (" + recvAudioBytes + "bps) video (" + recvVideoBytes + ")");
* console.log(peerId + " - Local candidate: " + localCandidate.ipAddress + ":" + localCandidate.portNumber +
* "?transport=" + localCandidate.transport + " (type: " + localCandidate.candidateType + ")");
* console.log(peerId + " - Remote candidate: " + remoteCandidate.ipAddress + ":" + remoteCandidate.portNumber +
* "?transport=" + remoteCandidate.transport + " (type: " + remoteCandidate.candidateType + ")");
* });
* }
*
* function startBWStatsInterval (peerIdA, peerIdB) {
* setInterval(function () {
* skylinkDemo.getConnectionStatus(function (error, success) {
* if (error) {
* printConnStats(error.listOfPeers, error.connectionStats);
* } else {
* printConnStats(success.listOfPeers, success.connectionStats);
* }
* });
* }, 1000);
* }
* @for Skylink
* @since 0.6.14
*/
Skylink.prototype.getConnectionStatus = function (targetPeerId, callback) {
var self = this;
var listOfPeers = Object.keys(self._peerConnections);
var listOfPeerStats = {};
var listOfPeerErrors = {};
// getConnectionStatus([])
if (Array.isArray(targetPeerId)) {
listOfPeers = targetPeerId;
// getConnectionStatus('...')
} else if (typeof targetPeerId === 'string' && !!targetPeerId) {
listOfPeers = [targetPeerId];
// getConnectionStatus(function () {})
} else if (typeof targetPeerId === 'function') {
callback = targetPeerId;
targetPeerId = undefined;
}
// Check if Peers list is empty, in which we throw an Error if there isn't any
if (listOfPeers.length === 0) {
listOfPeerErrors.self = new Error('There is currently no peer connections to retrieve connection status');
log.error([null, 'RTCStatsReport', null, 'Retrieving request failure ->'], listOfPeerErrors.self);
if (typeof callback === 'function') {
callback({
listOfPeers: listOfPeers,
retrievalErrors: listOfPeerErrors,
connectionStats: listOfPeerStats
}, null);
}
return;
}
if (AdapterJS.webrtcDetectedBrowser === 'edge') {
log.warn('Edge browser does not have well support for stats.');
}
var completedTaskCounter = [];
var checkCompletedFn = function (peerId) {
if (completedTaskCounter.indexOf(peerId) === -1) {
completedTaskCounter.push(peerId);
}
if (completedTaskCounter.length === listOfPeers.length) {
if (typeof callback === 'function') {
if (Object.keys(listOfPeerErrors).length > 0) {
callback({
listOfPeers: listOfPeers,
retrievalErrors: listOfPeerErrors,
connectionStats: listOfPeerStats
}, null);
} else {
callback(null, {
listOfPeers: listOfPeers,
connectionStats: listOfPeerStats
});
}
}
}
};
var statsFn = function (peerId) {
var retrieveFn = function (firstRetrieval, nextCb) {
return function (err, result) {
if (err) {
log.error([peerId, 'RTCStatsReport', null, 'Retrieval failure ->'], error);
listOfPeerErrors[peerId] = error;
self._trigger('getConnectionStatusStateChange', self.GET_CONNECTION_STATUS_STATE.RETRIEVE_ERROR,
peerId, null, error);
checkCompletedFn(peerId);
if (firstRetrieval) {
delete self._peerStats[peerId];
}
return;
}
if (firstRetrieval) {
nextCb();
} else {
listOfPeerStats[peerId] = result;
self._trigger('getConnectionStatusStateChange', self.GET_CONNECTION_STATUS_STATE.RETRIEVE_SUCCESS,
peerId, listOfPeerStats[peerId], null);
checkCompletedFn(peerId);
}
};
};
if (!self._peerStats[peerId]) {
self._peerStats[peerId] = {};
log.debug([peerId, 'RTCStatsReport', null, 'Retrieving first report to tabulate results']);
self._retrieveStats(peerId, retrieveFn(true, function () {
self._retrieveStats(peerId, retrieveFn());
}), true);
return;
}
self._retrieveStats(peerId, retrieveFn());
};
// Loop through all the list of Peers selected to retrieve connection status
for (var i = 0; i < listOfPeers.length; i++) {
var peerId = listOfPeers[i];
self._trigger('getConnectionStatusStateChange', self.GET_CONNECTION_STATUS_STATE.RETRIEVING,
peerId, null, null);
// Check if the Peer connection exists first
if (self._peerConnections.hasOwnProperty(peerId) && self._peerConnections[peerId]) {
statsFn(peerId);
} else {
listOfPeerErrors[peerId] = new Error('The peer connection object does not exists');
log.error([peerId, 'RTCStatsReport', null, 'Retrieval failure ->'], listOfPeerErrors[peerId]);
self._trigger('getConnectionStatusStateChange', self.GET_CONNECTION_STATUS_STATE.RETRIEVE_ERROR,
peerId, null, listOfPeerErrors[peerId]);
checkCompletedFn(peerId);
}
}
};
/**
* Function that retrieves Peer connection stats.
* @method _retrieveStats
* @private
* @for Skylink
* @since 0.6.18
*/
Skylink.prototype._retrieveStats = function (peerId, callback, beSilentOnLogs, isAutoBwStats) {
var self = this;
var pc = self._peerConnections[peerId];
var output = {
raw: {},
connection: {},
audio: {
sending: {},
receiving: {} },
video: {
sending: {},
receiving: {}
},
selectedCandidate: {
local: {},
remote: {},
consentResponses: {},
consentRequests: {},
responses: {},
requests: {}
},
certificate: {}
};
// Peer stats has to be retrieved once first before the second time.
if (!self._peerStats[peerId] && !isAutoBwStats) {
return callback(new Error('No stats initiated yet.'));
} else if (!pc) {
return callback(new Error('Peer connection is not initialised'));
}
// Warn due to Edge not giving complete stats and returning as 0 sometimes..
if (AdapterJS.webrtcDetectedBrowser === 'edge' || AdapterJS.webrtcDetectedType === 'AppleWebKit') {
log.warn('Current connection stats may not be complete as it is in beta');
}
// Parse RTCPeerConnection details
output.connection.iceConnectionState = pc.iceConnectionState;
output.connection.iceGatheringState = pc.iceGatheringState;
output.connection.signalingState = pc.signalingState;
output.connection.remoteDescription = {
type: (pc.remoteDescription && pc.remoteDescription.type) || '',
sdp : (pc.remoteDescription && pc.remoteDescription.sdp) || ''
};
output.connection.localDescription = {
type: (pc.localDescription && pc.localDescription.type) || '',
sdp : (pc.localDescription && pc.localDescription.sdp) || ''
};
output.connection.candidates = {
sending: self._getSDPICECandidates(peerId, pc.localDescription, beSilentOnLogs),
receiving: self._getSDPICECandidates(peerId, pc.remoteDescription, beSilentOnLogs)
};
output.connection.dataChannels = {};
output.connection.constraints = self._peerConnStatus[peerId] ? self._peerConnStatus[peerId].constraints : null;
output.connection.optional = self._peerConnStatus[peerId] ? self._peerConnStatus[peerId].optional : null;
output.connection.sdpConstraints = self._peerConnStatus[peerId] ? self._peerConnStatus[peerId].sdpConstraints : null;
// Parse workaround possible codecs details
output.audio.sending.codec = self._getSDPSelectedCodec(peerId, pc.remoteDescription, 'audio', beSilentOnLogs);
output.video.sending.codec = self._getSDPSelectedCodec(peerId, pc.remoteDescription, 'video', beSilentOnLogs);
output.audio.receiving.codec = self._getSDPSelectedCodec(peerId, pc.localDescription, 'audio', beSilentOnLogs);
output.video.receiving.codec = self._getSDPSelectedCodec(peerId, pc.localDescription, 'video', beSilentOnLogs);
// Parse workaround possible certificate details
output.certificate.local = self._getSDPFingerprint(peerId, pc.localDescription, beSilentOnLogs);
output.certificate.remote = self._getSDPFingerprint(peerId, pc.remoteDescription, beSilentOnLogs);
// Parse workaround possible SSRC details to prevent receiving 0 from Safari 11
var inboundSSRCs = self._getSDPMediaSSRC(peerId, pc.remoteDescription, beSilentOnLogs);
output.audio.receiving.ssrc = inboundSSRCs.audio;
output.video.receiving.ssrc = inboundSSRCs.video;
var outboundSSRCs = self._getSDPMediaSSRC(peerId, pc.localDescription, beSilentOnLogs);
output.audio.sending.ssrc = outboundSSRCs.audio;
output.video.sending.ssrc = outboundSSRCs.video;
// Parse RTCDataChannel details (not stats)
Object.keys(self._dataChannels[peerId] || {}).forEach(function (prop) {
var channel = self._dataChannels[peerId][prop];
output.connection.dataChannels[channel.channel.label] = {
label: channel.channel.label,
readyState: channel.channel.readyState,
channelType: self.DATA_CHANNEL_TYPE[prop === 'main' ? 'MESSAGING' : 'DATA'],
currentTransferId: channel.transferId || null,
currentStreamId: channel.streamId || null
};
});
// Format DTLS certificates and ciphers used
var certificateFn = function (item, prop) {
// Safari 11
if (prop.indexOf('RTCCertificate_') === 0) {
// Map the certificate data basing off the fingerprint algorithm
if (item.fingerprint === output.certificate.local.fingerprint) {
output.certificate.local.derBase64 = item.base64Certificate;
output.certificate.local.fingerprintAlgorithm = item.fingerprintAlgorithm;
} else if (item.fingerprint === output.certificate.remote.fingerprint) {
output.certificate.remote.derBase64 = item.base64Certificate;
output.certificate.remote.fingerprintAlgorithm = item.fingerprintAlgorithm;
}
// Chrome / Plugin
} else if (prop.indexOf('ssrc_') === 0 && item.transportId) {
var pairItem = output.raw[item.transportId] || {};
output.certificate.srtpCipher = pairItem.srtpCipher;
output.certificate.dtlsCipher = pairItem.dtlsCipher;
var localCertItem = output.raw[pairItem.localCertificateId || ''] || {};
output.certificate.local.fingerprint = localCertItem.googFingerprint;
output.certificate.local.fingerprintAlgorithm = localCertItem.googFingerprintAlgorithm;
output.certificate.local.derBase64 = localCertItem.googDerBase64;
var remoteCertItem = output.raw[pairItem.remoteCertificateId || ''] || {};
output.certificate.remote.fingerprint = remoteCertItem.googFingerprint;
output.certificate.remote.fingerprintAlgorithm = remoteCertItem.googFingerprintAlgorithm;
output.certificate.remote.derBase64 = remoteCertItem.googDerBase64;
}
};
// Format selected candidate pair
var candidatePairFn = function (item, prop) {
// Safari 11
if (prop.indexOf('RTCIceCandidatePair_') === 0) {
// Use the nominated pair, else use the one that has succeeded but not yet nominated.
// This is to handle the case where none of the ICE candidates appear nominated.
if (item.state !== 'succeeded' || (output.selectedCandidate.nominated ? true :
(item.prioirty < (output.selectedCandidate.priority || 0)))) {
return;
}
var prevStats = isAutoBwStats ? self._peerBandwidth[peerId][prop] : self._peerStats[peerId][prop];
// Map the selected ICE candidate pair based on computed prioirty
var sending = (pc.localDescription && pc.localDescription.sdp && pc.localDescription.sdp.match(/a=candidate:.*\r\n/gi)) || [];
var receiving = (pc.remoteDescription && pc.remoteDescription && pc.remoteDescription.sdp.match(/a=candidate:.*\r\n/gi)) || [];
// Compute the priority
var computePrioirtyFn = function (controller, controlled) {
return (Math.pow(2, 32) * Math.min(controller, controlled)) + (2 * Math.max(controller, controlled)) + (controller > controlled ? 1 : 0);
};
// Format the candidate type
var computeCanTypeFn = function (type) {
if (type === 'relay') {
return 'relayed';
} else if (type === 'host') {
return 'local';
} else if (type === 'srflx') {
return 'serverreflexive';
}
return type;
};
for (var s = 0; s < sending.length; s++) {
var sendCanParts = sending[s].split(' ');
for (var r = 0; r < receiving.length; r++) {
var recvCanParts = receiving[r].split(' ');
var priority = null;
if (item.writable) {
// Compute the priority since we are the controller
priority = computePrioirtyFn(parseInt(sendCanParts[3], 10), parseInt(recvCanParts[3], 10));
} else {
// Compute the priority since we are the controlled
priority = computePrioirtyFn(parseInt(recvCanParts[3], 10), parseInt(sendCanParts[3], 10));
}
if (priority === item.priority) {
output.selectedCandidate.local.ipAddress = sendCanParts[4];
output.selectedCandidate.local.candidateType = sendCanParts[7];
output.selectedCandidate.local.portNumber = parseInt(sendCanParts[5], 10);
output.selectedCandidate.local.transport = sendCanParts[2];
output.selectedCandidate.local.priority = parseInt(sendCanParts[3], 10);
output.selectedCandidate.local.candidateType = computeCanTypeFn(sendCanParts[7]);
output.selectedCandidate.remote.ipAddress = recvCanParts[4];
output.selectedCandidate.remote.candidateType = recvCanParts[7];
output.selectedCandidate.remote.portNumber = parseInt(recvCanParts[5], 10);
output.selectedCandidate.remote.transport = recvCanParts[2];
output.selectedCandidate.remote.priority = parseInt(recvCanParts[3], 10);
output.selectedCandidate.remote.candidateType = computeCanTypeFn(recvCanParts[7]);
break;
}
}
}
output.selectedCandidate.writable = item.writable;
output.selectedCandidate.readable = item.readable;
output.selectedCandidate.priority = item.priority;
output.selectedCandidate.nominated = item.nominated;
var rtt = parseInt(item.rtt || '0', 10);
output.selectedCandidate.totalRtt = rtt;
output.selectedCandidate.rtt = self._parseConnectionStats(prevStats, item, 'rtt');
var consentResponsesReceived = parseInt(item.consentResponsesReceived || '0', 10);
output.selectedCandidate.consentResponses.totalReceived = consentResponsesReceived;
output.selectedCandidate.consentResponses.received = self._parseConnectionStats(prevStats, item, 'consentResponsesReceived');
var consentResponsesSent = parseInt(item.consentResponsesSent || '0', 10);
output.selectedCandidate.consentResponses.totalSent = consentResponsesSent;
output.selectedCandidate.consentResponses.sent = self._parseConnectionStats(prevStats, item, 'consentResponsesSent');
var responsesReceived = parseInt(item.responsesReceived || '0', 10);
output.selectedCandidate.responses.totalReceived = responsesReceived;
output.selectedCandidate.responses.received = self._parseConnectionStats(prevStats, item, 'responsesReceived');
var responsesSent = parseInt(item.responsesSent || '0', 10);
output.selectedCandidate.responses.totalSent = responsesSent;
output.selectedCandidate.responses.sent = self._parseConnectionStats(prevStats, item, 'responsesSent');
// Chrome / Plugin
} else if (item.type === 'googCandidatePair') {
var prevStats = isAutoBwStats ? self._peerBandwidth[peerId][prop] : self._peerStats[peerId][prop];
output.selectedCandidate.writable = item.googWritable === 'true';
output.selectedCandidate.readable = item.googReadable === 'true';
var rtt = parseInt(item.googRtt || '0', 10);
output.selectedCandidate.totalRtt = rtt;
output.selectedCandidate.rtt = self._parseConnectionStats(prevStats, item, 'rtt');
if (item.consentResponsesReceived) {
var consentResponsesReceived = parseInt(item.consentResponsesReceived || '0', 10);
output.selectedCandidate.consentResponses.totalReceived = consentResponsesReceived;
output.selectedCandidate.consentResponses.received = self._parseConnectionStats(prevStats, item, 'consentResponsesReceived');
}
if (item.consentResponsesSent) {
var consentResponsesSent = parseInt(item.consentResponsesSent || '0', 10);
output.selectedCandidate.consentResponses.totalSent = consentResponsesSent;
output.selectedCandidate.consentResponses.sent = self._parseConnectionStats(prevStats, item, 'consentResponsesSent');
}
if (item.responsesReceived) {
var responsesReceived = parseInt(item.responsesReceived || '0', 10);
output.selectedCandidate.responses.totalReceived = responsesReceived;
output.selectedCandidate.responses.received = self._parseConnectionStats(prevStats, item, 'responsesReceived');
}
if (item.responsesSent) {
var responsesSent = parseInt(item.responsesSent || '0', 10);
output.selectedCandidate.responses.totalSent = responsesSent;
output.selectedCandidate.responses.sent = self._parseConnectionStats(prevStats, item, 'responsesSent');
}
var localCanItem = output.raw[item.localCandidateId || ''] || {};
output.selectedCandidate.local.ipAddress = localCanItem.ipAddress;
output.selectedCandidate.local.portNumber = parseInt(localCanItem.portNumber, 10);
output.selectedCandidate.local.priority = parseInt(localCanItem.priority, 10);
output.selectedCandidate.local.networkType = localCanItem.networkType;
output.selectedCandidate.local.transport = localCanItem.transport;
output.selectedCandidate.local.candidateType = localCanItem.candidateType;
var remoteCanItem = output.raw[item.remoteCandidateId || ''] || {};
output.selectedCandidate.remote.ipAddress = remoteCanItem.ipAddress;
output.selectedCandidate.remote.portNumber = parseInt(remoteCanItem.portNumber, 10);
output.selectedCandidate.remote.priority = parseInt(remoteCanItem.priority, 10);
output.selectedCandidate.remote.transport = remoteCanItem.transport;
output.selectedCandidate.remote.candidateType = remoteCanItem.candidateType;
// Firefox
} else if (item.type === 'candidatepair' && item.state === 'succeeded' && item.nominated) {
output.selectedCandidate.writable = item.writable;
output.selectedCandidate.readable = item.readable;
var localCanItem = output.raw[item.localCandidateId || ''];
output.selectedCandidate.local.ipAddress = localCanItem.ipAddress;
output.selectedCandidate.local.portNumber = localCanItem.portNumber;
output.selectedCandidate.local.transport = localCanItem.transport;
output.selectedCandidate.local.candidateType = localCanItem.candidateType;
output.selectedCandidate.local.turnMediaTransport = localCanItem.mozLocalTransport;
var remoteCanItem = output.raw[item.remoteCandidateId || ''];
output.selectedCandidate.remote.ipAddress = remoteCanItem.ipAddress;
output.selectedCandidate.remote.portNumber = remoteCanItem.portNumber;
output.selectedCandidate.remote.transport = remoteCanItem.transport;
output.selectedCandidate.remote.candidateType = remoteCanItem.candidateType;
}
};
// Format selected codecs
var codecsFn = function (item, prop) {
// Chrome / Plugin
if (prop.indexOf('ssrc_') === 0) {
var direction = prop.indexOf('_send') > 0 ? 'sending' : 'receiving';
item.codecImplementationName = item.codecImplementationName === 'unknown' ? null : item.codecImplementationName;
output[item.mediaType][direction].codec.implementation = item.codecImplementationName || null;
item.googCodecName = item.googCodecName === 'unknown' ? null : item.googCodecName;
output[item.mediaType][direction].codec.name = item.googCodecName || output[item.mediaType][direction].codec.name;
}
};
// Format audio stats
var audioStatsFn = function (item, prop) {
var prevStats = isAutoBwStats ? self._peerBandwidth[peerId][prop] : self._peerStats[peerId][prop];
// Safari 11 (Inbound stats)
if (prop.indexOf('RTCInboundRTPAudioStream') === 0) {
output.audio.receiving.fractionLost = item.fractionLost;
output.audio.receiving.jitter = item.jitter;
output.audio.receiving.totalBytes = item.bytesReceived;
output.audio.receiving.bytes = self._parseConnectionStats(prevStats, item, 'bytesReceived');
output.audio.receiving.totalPackets = item.packetsReceived;
output.audio.receiving.packets = self._parseConnectionStats(prevStats, item, 'packetsReceived');
output.audio.receiving.totalPacketsDiscarded = item.packetsDiscarded;
output.audio.receiving.packetsDiscarded = self._parseConnectionStats(prevStats, item, 'packetsDiscarded');
output.audio.receiving.totalPacketsLost = item.packetsLost;
output.audio.receiving.packetsLost = self._parseConnectionStats(prevStats, item, 'packetsLost');
output.audio.receiving.totalNacks = item.nackCount;
output.audio.receiving.nacks = self._parseConnectionStats(prevStats, item, 'nackCount');
if (typeof pc.getReceivers !== 'function') {
return;
}
// Safari 11 (Inbound track stats)
} else if (prop.indexOf('RTCMediaStreamTrack_remote_audio_') === 0) {
output.audio.receiving.audioOutputLevel = item.audioLevel;
// Safari 11 (Outbound stats)
} else if (prop.indexOf('RTCOutboundRTPAudioStream') === 0) {
output.audio.sending.targetBitrate = item.targetBitrate || 0;
output.audio.sending.totalBytes = item.bytesSent;
output.audio.sending.bytes = self._parseConnectionStats(prevStats, item, 'bytesSent');
output.audio.sending.totalPackets = item.packetsSent;
output.audio.sending.packets = self._parseConnectionStats(prevStats, item, 'packetsSent');
output.audio.sending.totalNacks = item.nackCount;
output.audio.sending.nacks = self._parseConnectionStats(prevStats, item, 'nackCount');
// Edge (WebRTC not ORTC shim) (Inbound stats) - Stats may not be accurate as it returns 0.
} else if (AdapterJS.webrtcDetectedBrowser === 'edge' && item.type === 'inboundrtp' && item.mediaType === 'audio' && item.isRemote) {
output.audio.receiving.fractionLost = item.fractionLost;
output.audio.receiving.jitter = item.jitter;
output.audio.receiving.totalBytes = item.bytesReceived;
output.audio.receiving.bytes = self._parseConnectionStats(prevStats, item, 'bytesReceived');
output.audio.receiving.totalPackets = item.packetsReceived;
output.audio.receiving.packets = self._parseConnectionStats(prevStats, item, 'packetsReceived');
output.audio.receiving.totalPacketsLost = item.packetsLost;
output.audio.receiving.packetsLost = self._parseConnectionStats(prevStats, item, 'packetsLost');
output.audio.receiving.totalNacks = item.nackCount;
output.audio.receiving.nacks = self._parseConnectionStats(prevStats, item, 'nackCount');
// Edge (WebRTC not ORTC shim) (Outbound stats) - Stats may not be accurate as it returns 0.
} else if (AdapterJS.webrtcDetectedBrowser === 'edge' && item.type === 'outboundrtp' && item.mediaType === 'audio' && !item.isRemote) {
output.audio.sending.targetBitrate = item.targetBitrate;
output.audio.sending.rtt = item.roundTripTime;
output.audio.sending.totalBytes = item.bytesSent;
output.audio.sending.bytes = self._parseConnectionStats(prevStats, item, 'bytesSent');
output.audio.sending.totalPackets = item.packetsSent;
output.audio.sending.packets = self._parseConnectionStats(prevStats, item, 'packetsSent');
output.audio.sending.totalNacks = item.nackCount;
output.audio.sending.nacks = self._parseConnectionStats(prevStats, item, 'nackCount');
var trackItem = output.raw[item.mediaTrackId || ''] || {};
output.audio.sending.audioInputLevel = trackItem.audioLevel;
output.audio.sending.echoReturnLoss = trackItem.echoReturnLoss;
output.audio.sending.echoReturnLossEnhancement = trackItem.echoReturnLossEnhancement;
// Chrome / Plugin
} else if (prop.indexOf('ssrc_') === 0 && item.mediaType === 'audio') {
// Chrome / Plugin (Inbound stats)
if (prop.indexOf('_recv') > 0) {
output.audio.receiving.jitter = parseInt(item.googJitterReceived || '0', 10);
output.audio.receiving.jitterBufferMs = parseInt(item.googJitterBufferMs || '0', 10);
output.audio.receiving.currentDelayMs = parseInt(item.googCurrentDelayMs || '0', 10);
//output.audio.receiving.audioOutputLevel = parseInt(item.audioOutputLevel || '0', 10);
var bytesReceived = parseInt(item.bytesReceived || '0', 10);
output.audio.receiving.totalBytes = bytesReceived;
output.audio.receiving.bytes = self._parseConnectionStats(prevStats, item, 'bytesReceived');
var packetsReceived = parseInt(item.packetsReceived || '0', 10);
output.audio.receiving.totalPackets = packetsReceived;
output.audio.receiving.packets = self._parseConnectionStats(prevStats, item, 'packetsReceived');
var packetsLost = parseInt(item.packetsLost || '0', 10);
output.audio.receiving.totalPacketsLost = packetsLost;
output.audio.receiving.packetsLost = self._parseConnectionStats(prevStats, item, 'packetsLost');
// Chrome / Plugin (Outbound stats)
} else {
output.audio.sending.rtt = parseInt(item.googRtt || '0', 10);
output.audio.sending.audioInputLevel = parseInt(item.audioInputLevel || '0', 10);
output.audio.sending.echoReturnLoss = parseInt(item.googEchoCancellationReturnLoss || '0', 10);
output.audio.sending.echoReturnLossEnhancement = parseInt(item.googEchoCancellationReturnLossEnhancement || '0', 10);
var bytesSent = parseInt(item.bytesSent || '0', 10);
output.audio.sending.totalBytes = bytesSent;
output.audio.sending.bytes = self._parseConnectionStats(prevStats, item, 'bytesSent');
var packetsSent = parseInt(item.packetsSent || '0', 10);
output.audio.sending.totalPackets = packetsSent;
output.audio.sending.packets = self._parseConnectionStats(prevStats, item, 'packetsSent');
}
// Firefox (Inbound stats)
} else if (prop.indexOf('inbound_rtp_audio') === 0) {
output.audio.receiving.jitter = item.jitter || 0;
output.audio.receiving.totalBytes = item.bytesReceived;
output.audio.receiving.bytes = self._parseConnectionStats(prevStats, item, 'bytesReceived');
output.audio.receiving.totalPackets = item.packetsReceived;
output.audio.receiving.packets = self._parseConnectionStats(prevStats, item, 'packetsReceived');
output.audio.receiving.totalPacketsLost = item.packetsLost;
output.audio.receiving.packetsLost = self._parseConnectionStats(prevStats, item, 'packetsLost');
output.audio.receiving.totalNacks = item.nackCount;
output.audio.receiving.nacks = self._parseConnectionStats(prevStats, item, 'nackCount');
// Firefox (Outbound stats)
} else if (prop.indexOf('outbound_rtp_audio') === 0) {
output.audio.sending.totalBytes = item.bytesSent;
output.audio.sending.bytes = self._parseConnectionStats(prevStats, item, 'bytesSent');
output.audio.sending.totalPackets = item.packetsSent;
output.audio.sending.packets = self._parseConnectionStats(prevStats, item, 'packetsSent');
output.audio.sending.totalNacks = item.nackCount;
output.audio.sending.nacks = self._parseConnectionStats(prevStats, item, 'nackCount');
var rtcpItem = output.raw[prop.replace(/_rtp_/g, '_rtcp_')] || {};
output.audio.sending.rtt = rtcpItem.roundTripTime || 0;
}
};
// Format video stats
var videoStatsFn = function (item, prop) {
var prevStats = isAutoBwStats ? self._peerBandwidth[peerId][prop] : self._peerStats[peerId][prop];
// Safari 11 (Inbound stats)
if (prop.indexOf('RTCInboundRTPVideoStream') === 0) {
output.video.receiving.fractionLost = item.fractionLost;
output.video.receiving.jitter = item.jitter;
output.video.receiving.framesDecoded = item.framesDecoded;
output.video.receiving.qpSum = item.qpSum;
output.video.receiving.totalBytes = item.bytesReceived;
output.video.receiving.bytes = self._parseConnectionStats(prevStats, item, 'bytesReceived');
output.video.receiving.totalPackets = item.packetsReceived;
output.video.receiving.packets = self._parseConnectionStats(prevStats, item, 'packetsReceived');
output.video.receiving.totalPacketsDiscarded = item.packetsDiscarded;
output.video.receiving.packetsDiscarded = self._parseConnectionStats(prevStats, item, 'packetsDiscarded');
output.video.receiving.totalPacketsLost = item.packetsLost;
output.video.receiving.packetsLost = self._parseConnectionStats(prevStats, item, 'packetsLost');
output.video.receiving.totalNacks = item.nackCount;
output.video.receiving.nacks = self._parseConnectionStats(prevStats, item, 'nackCount');
output.video.receiving.totalFirs = item.firCount;
output.video.receiving.firs = self._parseConnectionStats(prevStats, item, 'firCount');
output.video.receiving.totalSlis = item.sliCount;
output.video.receiving.slis = self._parseConnectionStats(prevStats, item, 'sliCount');
// Safari 11 (Inbound track stats)
} else if (prop.indexOf('RTCMediaStreamTrack_remote_video_') === 0) {
output.video.receiving.frameHeight = item.frameHeight;
output.video.receiving.frameWidth = item.frameWidth;
output.video.receiving.framesCorrupted = item.framesCorrupted;
output.video.receiving.framesPerSecond = item.framesPerSecond;
output.video.receiving.framesDropped = item.framesDropped;
output.video.receiving.totalFrames = item.framesReceived;
output.video.receiving.frames = self._parseConnectionStats(prevStats, item, 'framesReceived');
// Safari 11 (Outbound stats)
} else if (prop.indexOf('RTCOutboundRTPVideoStream') === 0) {
output.video.sending.qpSum = item.qpSum;
output.video.sending.targetBitrate = item.targetBitrate || 0;
output.video.sending.framesEncoded = item.framesEncoded || 0;
output.video.sending.totalBytes = item.bytesSent;
output.video.sending.bytes = self._parseConnectionStats(prevStats, item, 'bytesSent');
output.video.sending.totalPackets = item.packetsSent;
output.video.sending.packets = self._parseConnectionStats(prevStats, item, 'packetsSent');
output.video.sending.totalNacks = item.nackCount;
output.video.sending.nacks = self._parseConnectionStats(prevStats, item, 'nackCount');
output.video.receiving.totalFirs = item.firCount;
output.video.receiving.firs = self._parseConnectionStats(prevStats, item, 'firCount');
output.video.sending.totalSlis = item.sliCount;
output.video.sending.slis = self._parseConnectionStats(prevStats, item, 'sliCount');
// Edge (WebRTC not ORTC shim) (Inbound stats) - Stats may not be accurate as it returns 0.
} else if (AdapterJS.webrtcDetectedBrowser === 'edge' && item.type === 'inboundrtp' && item.mediaType === 'video' && item.isRemote) {
output.video.receiving.fractionLost = item.fractionLost;
output.video.receiving.jitter = item.jitter;
output.video.receiving.totalBytes = item.bytesReceived;
output.video.receiving.bytes = self._parseConnectionStats(prevStats, item, 'bytesReceived');
output.video.receiving.totalPackets = item.packetsReceived;
output.video.receiving.packets = self._parseConnectionStats(prevStats, item, 'packetsReceived');
output.video.receiving.totalPacketsLost = item.packetsLost;
output.video.receiving.packetsLost = self._parseConnectionStats(prevStats, item, 'packetsLost');
output.video.receiving.totalNacks = item.nackCount;
output.video.receiving.nacks = self._parseConnectionStats(prevStats, item, 'nackCount');
output.video.receiving.totalPlis = item.pliCount;
output.video.receiving.plis = self._parseConnectionStats(prevStats, item, 'pliCount');
output.video.receiving.totalFirs = item.firCount;
output.video.receiving.firs = self._parseConnectionStats(prevStats, item, 'firCount');
output.video.receiving.totalSlis = item.sliCount;
output.video.receiving.slis = self._parseConnectionStats(prevStats, item, 'sliCount');
var trackItem = output.raw[item.mediaTrackId || ''] || {};
output.video.receiving.framesCorrupted = trackItem.framesCorrupted;
output.video.receiving.framesDropped = trackItem.framesDropped;
output.video.receiving.framesDecoded = trackItem.framesDecoded;
output.video.receiving.totalFrames = trackItem.framesReceived;
output.video.receiving.frames = self._parseConnectionStats(prevStats, trackItem, 'framesReceived');
// Edge (WebRTC not ORTC shim) (Outbound stats) - Stats may not be accurate as it returns 0.
} else if (AdapterJS.webrtcDetectedBrowser === 'edge' && item.type === 'outboundrtp' && item.mediaType === 'video' && !item.isRemote) {
output.video.sending.targetBitrate = item.targetBitrate || 0;
output.video.sending.roundTripTime = item.roundTripTime || 0;
output.video.sending.totalBytes = item.bytesSent;
output.video.sending.bytes = self._parseConnectionStats(prevStats, item, 'bytesSent');
output.video.sending.totalPackets = item.packetsSent;
output.video.sending.packets = self._parseConnectionStats(prevStats, item, 'packetsSent');
output.video.sending.totalNacks = item.nackCount;
output.video.sending.nacks = self._parseConnectionStats(prevStats, item, 'nackCount');
output.video.sending.totalFirs = item.firCount;
output.video.sending.firs = self._parseConnectionStats(prevStats, item, 'firCount');
output.video.sending.totalPlis = item.pliCount;
output.video.sending.plis = self._parseConnectionStats(prevStats, item, 'pliCount');
output.video.sending.totalSlis = item.sliCount;
output.video.sending.slis = self._parseConnectionStats(prevStats, item, 'sliCount');
var trackItem = output.raw[item.mediaTrackId || ''] || {};
output.video.sending.frameHeight = trackItem.frameHeight;
output.video.sending.frameWidth = trackItem.frameWidth;
output.video.sending.framesPerSecond = trackItem.framesPerSecond;
output.video.sending.totalFrames = trackItem.framesSent;
output.video.sending.frames = self._parseConnectionStats(prevStats, trackItem, 'framesSent');
// Chrome / Plugin
} else if (prop.indexOf('ssrc_') === 0 && item.mediaType === 'video') {
// Chrome / Plugin (Inbound stats)
if (prop.indexOf('_recv') > 0) {
output.video.receiving.jitter = parseInt(item.googJitterReceived || '0', 10);
output.video.receiving.jitterBufferMs = parseInt(item.googJitterBufferMs || '0', 10);
output.video.receiving.currentDelayMs = parseInt(item.googCurrentDelayMs || '0', 10);
output.video.receiving.renderDelayMs = parseInt(item.googRenderDelayMs || '0', 10);
output.video.receiving.frameWidth = parseInt(item.googFrameWidthReceived || '0', 10);
output.video.receiving.frameHeight = parseInt(item.googFrameHeightReceived || '0', 10);
output.video.receiving.framesDecoded = parseInt(item.framesDecoded || '0', 10);
output.video.receiving.frameRateOutput = parseInt(item.googFrameRateOutput || '0', 10);
output.video.receiving.frameRateDecoded = parseInt(item.googFrameRateDecoded || '0', 10);
output.video.receiving.frameRateReceived = parseInt(item.googFrameRateReceived || '0', 10);
output.video.receiving.qpSum = parseInt(item.qpSum || '0', 10);
var bytesReceived = parseInt(item.bytesReceived || '0', 10);
output.video.receiving.totalBytes = bytesReceived;
output.video.receiving.bytes = self._parseConnectionStats(prevStats, item, 'bytesReceived');
var packetsReceived = parseInt(item.packetsReceived || '0', 10);
output.video.receiving.totalPackets = packetsReceived;
output.video.receiving.packets = self._parseConnectionStats(prevStats, item, 'packetsReceived');
var packetsLost = parseInt(item.packetsLost || '0', 10);
output.video.receiving.totalPacketsLost = packetsLost;
output.video.receiving.packetsLost = self._parseConnectionStats(prevStats, item, 'packetsLost');
var nacksSent = parseInt(item.googNacksSent || '0', 10);
output.video.receiving.totalNacks = nacksSent;
output.video.receiving.nacks = self._parseConnectionStats(prevStats, item, 'googNacksSent');
var plisSent = parseInt(item.googPlisSent || '0', 10);
output.video.receiving.totalPlis = plisSent;
output.video.receiving.plis = self._parseConnectionStats(prevStats, item, 'googPlisSent');
var firsSent = parseInt(item.googFirsSent || '0', 10);
output.video.receiving.totalFirs = firsSent;
output.video.receiving.firs = self._parseConnectionStats(prevStats, item, 'googFirsSent');
// Chrome / Plugin (Outbound stats)
} else {
output.video.sending.rtt = parseInt(item.googRtt || '0', 10);
output.video.sending.frameWidth = parseInt(item.googFrameWidthSent || '0', 10);
output.video.sending.frameHeight = parseInt(item.googFrameHeightSent || '0', 10);
output.video.sending.framesEncoded = parseInt(item.framesEncoded || '0', 10);
output.video.sending.frameRateInput = parseInt(item.googFrameRateInput || '0', 10);
output.video.sending.frameRateEncoded = parseInt(item.googFrameRateEncoded || '0', 10);
output.video.sending.frameRateSent = parseInt(item.googFrameRateSent || '0', 10);
output.video.sending.cpuLimitedResolution = item.googCpuLimitedResolution === 'true';
output.video.sending.bandwidthLimitedResolution = item.googBandwidthLimitedResolution === 'true';
var bytesSent = parseInt(item.bytesSent || '0', 10);
output.video.sending.totalBytes = bytesSent;
output.video.sending.bytes = self._parseConnectionStats(prevStats, item, 'bytesSent');
var packetsSent = parseInt(item.packetsSent || '0', 10);
output.video.sending.totalPackets = packetsSent;
output.video.sending.packets = self._parseConnectionStats(prevStats, item, 'packetsSent');
var nacksReceived = parseInt(item.googNacksReceived || '0', 10);
output.video.sending.totalNacks = nacksReceived;
output.video.sending.nacks = self._parseConnectionStats(prevStats, item, 'googNacksReceived');
var plisReceived = parseInt(item.googPlisReceived || '0', 10);
output.video.sending.totalPlis = plisReceived;
output.video.sending.plis = self._parseConnectionStats(prevStats, item, 'googPlisReceived');
var firsReceived = parseInt(item.googFirsReceived || '0', 10);
output.video.sending.totalFirs = firsReceived;
output.video.sending.firs = self._parseConnectionStats(prevStats, item, 'googFirsReceived');
}
// Firefox (Inbound stats)
} else if (prop.indexOf('inbound_rtp_video') === 0) {
output.video.receiving.jitter = item.jitter || 0;
output.video.receiving.framesDecoded = item.framesDecoded || 0;
output.video.receiving.frameRateMean = item.framerateMean || 0;
output.video.receiving.frameRateStdDev = item.framerateStdDev || 0;
output.video.receiving.totalBytes = item.bytesReceived;
output.video.receiving.bytes = self._parseConnectionStats(prevStats, item, 'bytesReceived');
output.video.receiving.totalPackets = item.packetsReceived;
output.video.receiving.packets = self._parseConnectionStats(prevStats, item, 'packetsReceived');
output.video.receiving.totalPacketsLost = item.packetsLost;
output.video.receiving.packetsLost = self._parseConnectionStats(prevStats, item, 'packetsLost');
output.video.receiving.totalNacks = item.nackCount;
output.video.receiving.nacks = self._parseConnectionStats(prevStats, item, 'nackCount');
output.video.receiving.totalPlis = item.pliCount;
output.video.receiving.plis = self._parseConnectionStats(prevStats, item, 'pliCount');
output.video.receiving.totalFirs = item.firCount;
output.video.receiving.firs = self._parseConnectionStats(prevStats, item, 'firCount');
// Firefox (Outbound stats)
} else if (prop.indexOf('outbound_rtp_video') === 0) {
output.video.sending.framesEncoded = item.framesEncoded || 0;
output.video.sending.frameRateMean = item.framerateMean || 0;
output.video.sending.frameRateStdDev = item.framerateStdDev || 0;
output.video.sending.framesDropped = item.droppedFrames || 0;
output.video.sending.totalBytes = item.bytesSent;
output.video.sending.bytes = self._parseConnectionStats(prevStats, item, 'bytesSent');
output.video.sending.totalPackets = item.packetsSent;
output.video.sending.packets = self._parseConnectionStats(prevStats, item, 'packetsSent');
output.video.sending.totalNacks = item.nackCount;
output.video.sending.nacks = self._parseConnectionStats(prevStats, item, 'nackCount');
output.video.sending.totalPlis = item.pliCount;
output.video.sending.plis = self._parseConnectionStats(prevStats, item, 'pliCount');
output.video.sending.totalFirs = item.firCount;
output.video.sending.firs = self._parseConnectionStats(prevStats, item, 'firCount');
var rtcpItem = output.raw[prop.replace(/_rtp_/g, '_rtcp_')] || {};
output.video.sending.rtt = rtcpItem.roundTripTime || 0;
}
};
// Format video e2e delay stats
var videoE2EStatsFn = function (item, prop) {
// Chrome / Plugin (Inbound e2e stats)
if (prop.indexOf('ssrc_') === 0 && item.mediaType === 'video') {
var captureStartNtpTimeMs = parseInt(item.googCaptureStartNtpTimeMs || '0', 10);
var remoteStream = pc.getRemoteStreams()[0];
if (!(captureStartNtpTimeMs > 0 && prop.indexOf('_recv') > 0 && remoteStream &&
document && typeof document.getElementsByTagName === 'function')) {
return;
}
try {
var elements = document.getElementsByTagName(AdapterJS.webrtcDetectedType === 'plugin' ? 'object' : 'video');
if (AdapterJS.webrtcDetectedType !== 'plugin' && elements.length === 0) {
elements = document.getElementsByTagName('audio');
}
for (var e = 0; e < elements.length; e++) {
var videoStreamId = null;
// For Plugin case where they use the <object> element
if (AdapterJS.webrtcDetectedType === 'plugin') {
// Precautionary check to return if there is no children like <param>, which means something is wrong..
if (!(elements[e].children && typeof elements[e].children === 'object' &&
typeof elements[e].children.length === 'number' && elements[e].children.length > 0)) {
break;
}
// Retrieve the "streamId" parameter
for (var ec = 0; ec < elements[e].children.length; ec++) {
if (elements[e].children[ec].name === 'streamId') {
videoStreamId = elements[e].children[ec].value || null;
break;
}
}
// For Chrome case where the srcObject can be obtained and determine the streamId
} else {
videoStreamId = (elements[e].srcObject && (elements[e].srcObject.id || elements[e].srcObject.label)) || null;
}
if (videoStreamId && videoStreamId === (remoteStream.id || remoteStream.label)) {
output.video.receiving.e2eDelay = ((new Date()).getTime() + 2208988800000) - captureStartNtpTimeMs - elements[e].currentTime * 1000;
break;
}
}
} catch (error) {
if (!beSilentOnLogs) {
log.warn([peerId, 'RTCStatsReport', null, 'Failed retrieving e2e delay ->'], error);
}
}
}
};
var successCbFn = function (stats) {
if (typeof stats.forEach === 'function') {
stats.forEach(function (item, prop) {
output.raw[prop] = item;
});
} else {
output.raw = stats;
}
var edgeTracksKind = {
remote: {},
local: {}
};
if (AdapterJS.webrtcDetectedBrowser === 'edge') {
if (pc.remoteStream) {
pc.remoteStream.getTracks().forEach(function (track) {
edgeTracksKind.remote[track.id] = track.kind;
});
}
if (pc.localStream) {
pc.localStream.getTracks().forEach(function (track) {
edgeTracksKind.local[track.id] = track.kind;
});
}
}
Object.keys(output.raw).forEach(function (prop) {
// Polyfill for Plugin missing "mediaType" stats item
if (prop.indexOf('ssrc_') === 0 && !output.raw[prop].mediaType) {
output.raw[prop].mediaType = output.raw[prop].audioInputLevel || output.raw[prop].audioOutputLevel ? 'audio' : 'video';
// Polyfill for Edge 15.x missing "mediaType" stats item
} else if (AdapterJS.webrtcDetectedBrowser === 'edge' && !output.raw[prop].mediaType &&
['inboundrtp', 'outboundrtp'].indexOf(output.raw[prop].type) > -1) {
var trackItem = output.raw[ output.raw[prop].mediaTrackId ] || {};
output.raw[prop].mediaType = edgeTracksKind[ output.raw[prop].isRemote ? 'remote' : 'local' ][ trackItem.trackIdentifier ] || '';
}
certificateFn(output.raw[prop], prop);
candidatePairFn(output.raw[prop], prop);
codecsFn(output.raw[prop], prop);
audioStatsFn(output.raw[prop], prop);
videoStatsFn(output.raw[prop], prop);
videoE2EStatsFn(output.raw[prop], prop);
// Parse for bandwidth statistics if not yet defined to not mix with the getConnectionStatus()
if (isAutoBwStats && !self._peerBandwidth[peerId][prop]) {
self._peerBandwidth[peerId][prop] = output.raw[prop];
} else if (!isAutoBwStats && !self._peerStats[peerId][prop]) {
self._peerStats[peerId][prop] = output.raw[prop];
}
});
// Prevent "0" in Edge 15.x and Safari 11 when SSRC stats is not available
output.audio.sending.bytes = output.audio.sending.bytes || 0;
output.audio.sending.packets = output.audio.sending.packets || 0;
output.audio.sending.totalBytes = output.audio.sending.totalBytes || 0;
output.audio.sending.totalPackets = output.audio.sending.totalPackets || 0;
output.video.sending.bytes = output.video.sending.bytes || 0;
output.video.sending.packets = output.video.sending.packets || 0;
output.video.sending.totalBytes = output.video.sending.totalBytes || 0;
output.video.sending.totalPackets = output.video.sending.totalPackets || 0;
output.audio.receiving.bytes = output.audio.receiving.bytes || 0;
output.audio.receiving.packets = output.audio.receiving.packets || 0;
output.audio.receiving.totalBytes = output.audio.receiving.totalBytes || 0;
output.audio.receiving.totalPackets = output.audio.receiving.totalPackets || 0;
output.video.receiving.bytes = output.video.receiving.bytes || 0;
output.video.receiving.packets = output.video.receiving.packets || 0;
output.video.receiving.totalBytes = output.video.receiving.totalBytes || 0;
output.video.receiving.totalPackets = output.video.receiving.totalPackets || 0;
callback(null, output);
};
var errorCbFn = function (error) {
if (!beSilentOnLogs) {
log.error([peerId, 'RTCStatsReport', null, 'Failed retrieving stats ->'], error);
}
callback(error, null);
};
if (typeof pc.getStats !== 'function') {
return errorCbFn(new Error('getStats() API is not available.'));
}
if (AdapterJS.webrtcDetectedType === 'plugin') {
pc.getStats(null, successCbFn, errorCbFn);
} else {
pc.getStats(null).then(successCbFn).catch(errorCbFn);
}
};
/**
* Function that starts the Peer connection session.
* Remember to remove previous method of reconnection (re-creating the Peer connection - destroy and create connection).
* @method _addPeer
* @private
* @for Skylink
* @since 0.5.4
*/
Skylink.prototype._addPeer = function(targetMid, cert, peerBrowser, receiveOnly, isSS) {
var self = this;
if (self._peerConnections[targetMid]) {
log.error([targetMid, null, null, 'Connection to peer has already been made']);
return;
}
self._peerConnStatus[targetMid] = {
connected: false,
init: false
};
log.log([targetMid, null, null, 'Starting the connection to peer. Options provided:'], {
peerBrowser: peerBrowser,
receiveOnly: receiveOnly,
enableDataChannel: self._initOptions.enableDataChannel
});
log.info('Adding peer', isSS);
self._peerConnections[targetMid] = self._createPeerConnection(targetMid, !!isSS, cert);
if (!self._peerConnections[targetMid]) {
log.error([targetMid, null, null, 'Failed creating the connection to peer.']);
return;
}
self._peerConnStatus[targetMid].init = true;
self._peerConnections[targetMid].hasScreen = !!isSS;
};
/**
* Function that re-negotiates a Peer connection.
* Remember to remove previous method of reconnection (re-creating the Peer connection - destroy and create connection).
* @method _restartPeerConnection
* @private
* @for Skylink
* @since 0.5.8
*/
Skylink.prototype._restartPeerConnection = function (peerId, doIceRestart, bwOptions, callback) {
var self = this;
if (!self._peerConnections[peerId]) {
log.error([peerId, null, null, 'Peer does not have an existing ' +
'connection. Unable to restart']);
return;
}
var pc = self._peerConnections[peerId];
var agent = (self.getPeerInfo(peerId) || {}).agent || {};
// prevent restarts for other SDK clients
if (self._isLowerThanVersion(agent.SMProtocolVersion || '', '0.1.2')) {
var notSupportedError = new Error('Failed restarting with other agents connecting from other SDKs as ' +
're-negotiation is not supported by other SDKs');
log.warn([peerId, 'RTCPeerConnection', null, 'Ignoring restart request as agent\'s SDK does not support it'],
notSupportedError);
if (typeof callback === 'function') {
log.debug([peerId, 'RTCPeerConnection', null, 'Firing restart failure callback']);
callback(notSupportedError);
}
return;
}
// This is when the state is stable and re-handshaking is possible
// This could be due to previous connection handshaking that is already done
if (pc.signalingState === self.PEER_CONNECTION_STATE.STABLE && self._peerConnections[peerId]) {
log.log([peerId, null, null, 'Sending restart message to signaling server ->'], {
iceRestart: doIceRestart,
options: bwOptions
});
self._peerCustomConfigs[peerId] = self._peerCustomConfigs[peerId] || {};
self._peerCustomConfigs[peerId].bandwidth = self._peerCustomConfigs[peerId].bandwidth || {};
self._peerCustomConfigs[peerId].googleXBandwidth = self._peerCustomConfigs[peerId].googleXBandwidth || {};
if (bwOptions.bandwidth && typeof bwOptions.bandwidth === 'object') {
if (typeof bwOptions.bandwidth.audio === 'number') {
self._peerCustomConfigs[peerId].bandwidth.audio = bwOptions.bandwidth.audio;
}
if (typeof bwOptions.bandwidth.video === 'number') {
self._peerCustomConfigs[peerId].bandwidth.video = bwOptions.bandwidth.video;
}
if (typeof bwOptions.bandwidth.data === 'number') {
self._peerCustomConfigs[peerId].bandwidth.data = bwOptions.bandwidth.data;
}
}
if (bwOptions.googleXBandwidth && typeof bwOptions.googleXBandwidth === 'object') {
if (typeof bwOptions.googleXBandwidth.min === 'number') {
self._peerCustomConfigs[peerId].googleXBandwidth.min = bwOptions.googleXBandwidth.min;
}
if (typeof bwOptions.googleXBandwidth.max === 'number') {
self._peerCustomConfigs[peerId].googleXBandwidth.max = bwOptions.googleXBandwidth.max;
}
}
var restartMsg = {
type: self._SIG_MESSAGE_TYPE.RESTART,
mid: self._user.sid,
rid: self._room.id,
agent: AdapterJS.webrtcDetectedBrowser,
version: (AdapterJS.webrtcDetectedVersion || 0).toString(),
os: window.navigator.platform,
userInfo: self._getUserInfo(peerId),
target: peerId,
weight: self._peerPriorityWeight,
receiveOnly: self.getPeerInfo().config.receiveOnly,
enableIceTrickle: self._initOptions.enableIceTrickle,
enableDataChannel: self._initOptions.enableDataChannel,
enableIceRestart: self._enableIceRestart,
doIceRestart: doIceRestart === true && self._enableIceRestart && self._peerInformations[peerId] &&
self._peerInformations[peerId].config.enableIceRestart,
isRestartResend: false,
temasysPluginVersion: AdapterJS.WebRTCPlugin.plugin ? AdapterJS.WebRTCPlugin.plugin.VERSION : null,
SMProtocolVersion: self.SM_PROTOCOL_VERSION,
DTProtocolVersion: self.DT_PROTOCOL_VERSION
};
if (self._publishOnly) {
restartMsg.publishOnly = {
type: self._streams.screenshare && self._streams.screenshare.stream ? 'screenshare' : 'video'
};
}
if (self._parentId) {
restartMsg.parentId = self._parentId;
}
self._peerEndOfCandidatesCounter[peerId] = self._peerEndOfCandidatesCounter[peerId] || {};
self._peerEndOfCandidatesCounter[peerId].len = 0;
self._sendChannelMessage(restartMsg);
self._trigger('peerRestart', peerId, self.getPeerInfo(peerId), true, doIceRestart === true);
if (typeof callback === 'function') {
log.debug([peerId, 'RTCPeerConnection', null, 'Firing restart callback']);
callback(null);
}
} else {
// Let's check if the signalingState is stable first.
// In another galaxy or universe, where the local description gets dropped..
// In the offerHandler or answerHandler, do the appropriate flags to ignore or drop "extra" descriptions
if (pc.signalingState === self.PEER_CONNECTION_STATE.HAVE_LOCAL_OFFER) {
// Checks if the local description is defined first
var hasLocalDescription = pc.localDescription && pc.localDescription.sdp;
// By then it should have at least the local description..
if (hasLocalDescription) {
self._sendChannelMessage({
type: pc.localDescription.type,
sdp: pc.localDescription.sdp,
mid: self._user.sid,
target: peerId,
rid: self._room.id,
restart: true
});
} else {
var noLocalDescriptionError = 'Failed re-sending localDescription as there is ' +
'no localDescription set to connection. There could be a handshaking step error';
log.error([peerId, 'RTCPeerConnection', null, noLocalDescriptionError], {
localDescription: pc.localDescription,
remoteDescription: pc.remoteDescription
});
if (typeof callback === 'function') {
log.debug([peerId, 'RTCPeerConnection', null, 'Firing restart failure callback']);
callback(new Error(noLocalDescriptionError));
}
}
// It could have connection state closed
} else {
var unableToRestartError = 'Failed restarting as peer connection state is ' + pc.signalingState;
log.warn([peerId, 'RTCPeerConnection', null, unableToRestartError]);
if (typeof callback === 'function') {
log.debug([peerId, 'RTCPeerConnection', null, 'Firing restart failure callback']);
callback(new Error(unableToRestartError));
}
}
}
};
/**
* Function that ends the Peer connection session.
* @method _removePeer
* @private
* @for Skylink
* @since 0.5.5
*/
Skylink.prototype._removePeer = function(peerId) {
if (!this._peerConnections[peerId] && !this._peerInformations[peerId]) {
log.debug([peerId, 'RTCPeerConnection', null, 'Dropping the hangup from Peer as not connected to Peer at all.']);
return;
}
var peerInfo = clone(this.getPeerInfo(peerId)) || {
userData: '',
settings: { audio: false, video: false, data: false },
mediaStatus: { audioMuted: true, videoMuted: true },
agent: {
name: 'unknown',
version: 0,
os: '',
pluginVersion: null
},
config: {
enableDataChannel: true,
enableIceRestart: false,
enableIceTrickle: true,
priorityWeight: 0,
publishOnly: false,
receiveOnly: true
},
parentId: null,
room: clone(this._selectedRoom)
};
if (peerId !== 'MCU') {
this._trigger('peerLeft', peerId, peerInfo, false);
} else {
this._hasMCU = false;
log.log([peerId, null, null, 'MCU has stopped listening and left']);
this._trigger('serverPeerLeft', peerId, this.SERVER_PEER_TYPE.MCU);
}
// check if health timer exists
if (this._peerConnections[peerId]) {
if (this._peerConnections[peerId].signalingState !== this.PEER_CONNECTION_STATE.CLOSED) {
this._peerConnections[peerId].close();
// Polyfill for safari 11 "closed" event not triggered for "iceConnectionState" and "signalingState".
if (AdapterJS.webrtcDetectedType === 'AppleWebKit') {
if (!this._peerConnections[peerId].signalingStateClosed) {
this._peerConnections[peerId].signalingStateClosed = true;
this._trigger('peerConnectionState', this.PEER_CONNECTION_STATE.CLOSED, peerId);
}
if (!this._peerConnections[peerId].iceConnectionStateClosed) {
this._peerConnections[peerId].iceConnectionStateClosed = true;
this._trigger('iceConnectionState', this.ICE_CONNECTION_STATE.CLOSED, peerId);
}
}
}
if (peerId !== 'MCU') {
this._handleEndedStreams(peerId);
}
delete this._peerConnections[peerId];
}
// remove peer informations session
if (this._peerInformations[peerId]) {
delete this._peerInformations[peerId];
}
// remove peer messages stamps session
if (this._peerMessagesStamps[peerId]) {
delete this._peerMessagesStamps[peerId];
}
// remove peer streams session
if (this._streamsSession[peerId]) {
delete this._streamsSession[peerId];
}
// remove peer streams session
if (this._peerEndOfCandidatesCounter[peerId]) {
delete this._peerEndOfCandidatesCounter[peerId];
}
// remove peer queued ICE candidates
if (this._peerCandidatesQueue[peerId]) {
delete this._peerCandidatesQueue[peerId];
}
// remove peer sdp session
if (this._sdpSessions[peerId]) {
delete this._sdpSessions[peerId];
}
// remove peer stats session
if (this._peerStats[peerId]) {
delete this._peerStats[peerId];
}
// remove peer bandwidth stats
if (this._peerBandwidth[peerId]) {
delete this._peerBandwidth[peerId];
}
// remove peer ICE candidates
if (this._gatheredCandidates[peerId]) {
delete this._gatheredCandidates[peerId];
}
// remove peer ICE candidates
if (this._peerCustomConfigs[peerId]) {
delete this._peerCustomConfigs[peerId];
}
// remove peer connection config
if (this._peerConnStatus[peerId]) {
delete this._peerConnStatus[peerId];
}
// close datachannel connection
if (this._dataChannels[peerId]) {
this._closeDataChannel(peerId);
}
log.log([peerId, 'RTCPeerConnection', null, 'Successfully removed peer']);
};
/**
* Function that creates the Peer connection.
* @method _createPeerConnection
* @private
* @for Skylink
* @since 0.5.1
*/
Skylink.prototype._createPeerConnection = function(targetMid, isScreenSharing, cert) {
var pc, self = this;
if (!self._inRoom || !(self._room && self._room.connection &&
self._room.connection.peerConfig && Array.isArray(self._room.connection.peerConfig.iceServers))) {
return;
}
var constraints = {
iceServers: self._room.connection.peerConfig.iceServers,
iceTransportPolicy: self._initOptions.filterCandidatesType.host && self._initOptions.filterCandidatesType.srflx &&
!self._initOptions.filterCandidatesType.relay ? 'relay' : 'all',
bundlePolicy: self._peerConnectionConfig.bundlePolicy === self.BUNDLE_POLICY.NONE ?
self.BUNDLE_POLICY.BALANCED : self._peerConnectionConfig.bundlePolicy,
rtcpMuxPolicy: self._peerConnectionConfig.rtcpMuxPolicy,
iceCandidatePoolSize: self._peerConnectionConfig.iceCandidatePoolSize
};
var optional = {
optional: [
{ DtlsSrtpKeyAgreement: true },
{ googIPv6: true }
]
};
if (cert) {
constraints.certificates = [cert];
}
if (self._peerConnStatus[targetMid]) {
self._peerConnStatus[targetMid].constraints = constraints;
self._peerConnStatus[targetMid].optional = optional;
}
// currently the AdapterJS 0.12.1-2 causes an issue to prevent firefox from
// using .urls feature
try {
log.debug([targetMid, 'RTCPeerConnection', null, 'Creating peer connection ->'], {
constraints: constraints,
optional: optional
});
pc = new (self._initOptions.useEdgeWebRTC && window.msRTCPeerConnection ? window.msRTCPeerConnection : RTCPeerConnection)(constraints, optional);
} catch (error) {
log.error([targetMid, null, null, 'Failed creating peer connection:'], error);
self._trigger('handshakeProgress', self.HANDSHAKE_PROGRESS.ERROR, targetMid, error);
return null;
}
// attributes (added on by Temasys)
pc.setOffer = '';
pc.setAnswer = '';
pc.hasStream = false;
pc.hasScreen = !!isScreenSharing;
pc.hasMainChannel = false;
pc.firefoxStreamId = '';
pc.processingLocalSDP = false;
pc.processingRemoteSDP = false;
pc.gathered = false;
pc.gathering = false;
pc.localStream = null;
pc.localStreamId = null;
pc.remoteStream = null;
pc.remoteStreamId = null;
// Used for safari 11
pc.iceConnectionStateClosed = false;
pc.signalingStateClosed = false;
// candidates
self._gatheredCandidates[targetMid] = {
sending: { host: [], srflx: [], relay: [] },
receiving: { host: [], srflx: [], relay: [] }
};
self._streamsSession[targetMid] = self._streamsSession[targetMid] || {};
self._peerEndOfCandidatesCounter[targetMid] = self._peerEndOfCandidatesCounter[targetMid] || {};
self._sdpSessions[targetMid] = { local: {}, remote: {} };
self._peerBandwidth[targetMid] = {};
var bandwidth = null;
// callbacks
// standard not implemented: onnegotiationneeded,
pc.ondatachannel = function(event) {
var dc = event.channel || event;
log.debug([targetMid, 'RTCDataChannel', dc.label, 'Received datachannel ->'], dc);
if (self._initOptions.enableDataChannel && self._peerInformations[targetMid] &&
self._peerInformations[targetMid].config.enableDataChannel) {
var channelType = self.DATA_CHANNEL_TYPE.DATA;
var channelKey = dc.label;
// if peer does not have main channel, the first item is main
if (!pc.hasMainChannel) {
channelType = self.DATA_CHANNEL_TYPE.MESSAGING;
channelKey = 'main';
pc.hasMainChannel = true;
}
self._createDataChannel(targetMid, dc);
} else {
log.warn([targetMid, 'RTCDataChannel', dc.label, 'Not adding datachannel as enable datachannel ' +
'is set to false']);
}
};
pc.onaddstream = function (evt) {
if (!self._peerConnections[targetMid]) {
return;
}
var stream = evt.stream || evt;
if (targetMid === 'MCU') {
log.warn([targetMid, 'MediaStream', pc.remoteStreamId, 'Ignoring received remote stream from MCU ->'], stream);
return;
} else if (!self._sdpSettings.direction.audio.receive && !self._sdpSettings.direction.video.receive) {
log.warn([targetMid, 'MediaStream', pc.remoteStreamId, 'Ignoring received empty remote stream ->'], stream);
return;
}
pc.remoteStream = stream;
pc.remoteStreamId = pc.remoteStreamId || stream.id || stream.label;
var peerSettings = clone(self.getPeerInfo(targetMid).settings);
self._streamsSession[targetMid][pc.remoteStreamId] = peerSettings;
if (stream.getAudioTracks().length === 0) {
self._streamsSession[targetMid][pc.remoteStreamId].audio = false;
}
if (stream.getVideoTracks().length === 0) {
self._streamsSession[targetMid][pc.remoteStreamId].video = false;
}
pc.hasStream = true;
pc.hasScreen = peerSettings.video && typeof peerSettings.video === 'object' && peerSettings.video.screenshare;
self._onRemoteStreamAdded(targetMid, stream, !!pc.hasScreen);
};
pc.onicecandidate = function(event) {
self._onIceCandidate(targetMid, event.candidate || event);
};
pc.oniceconnectionstatechange = function(evt) {
var iceConnectionState = pc.iceConnectionState;
log.debug([targetMid, 'RTCIceConnectionState', null, 'Ice connection state changed ->'], iceConnectionState);
if (AdapterJS.webrtcDetectedBrowser === 'edge') {
if (iceConnectionState === 'connecting') {
iceConnectionState = self.ICE_CONNECTION_STATE.CHECKING;
} else if (iceConnectionState === 'new') {
iceConnectionState = self.ICE_CONNECTION_STATE.FAILED;
}
}
if (AdapterJS.webrtcDetectedType === 'AppleWebKit' && iceConnectionState === self.ICE_CONNECTION_STATE.CLOSED) {
setTimeout(function () {
if (!pc.iceConnectionStateClosed) {
self._trigger('iceConnectionState', self.ICE_CONNECTION_STATE.CLOSED, targetMid);
}
}, 10);
return;
}
self._trigger('iceConnectionState', iceConnectionState, targetMid);
if (iceConnectionState === self.ICE_CONNECTION_STATE.FAILED && self._initOptions.enableIceTrickle) {
self._trigger('iceConnectionState', self.ICE_CONNECTION_STATE.TRICKLE_FAILED, targetMid);
}
if (self._peerConnStatus[targetMid]) {
self._peerConnStatus[targetMid].connected = [self.ICE_CONNECTION_STATE.COMPLETED,
self.ICE_CONNECTION_STATE.CONNECTED].indexOf(iceConnectionState) > -1;
}
if (!self._hasMCU && [self.ICE_CONNECTION_STATE.CONNECTED, self.ICE_CONNECTION_STATE.COMPLETED].indexOf(
iceConnectionState) > -1 && !!self._bandwidthAdjuster && !bandwidth && AdapterJS.webrtcDetectedBrowser !== 'edge' &&
(((self._peerInformations[targetMid] || {}).agent || {}).name || 'edge') !== 'edge') {
var currentBlock = 0;
var formatTotalFn = function (arr) {
var total = 0;
for (var i = 0; i < arr.length; i++) {
total += arr[i];
}
return total / arr.length;
};
bandwidth = {
audio: { send: [], recv: [] },
video: { send: [], recv: [] }
};
var pullInterval = setInterval(function () {
if (!(self._peerConnections[targetMid] && self._peerConnections[targetMid].signalingState !==
self.PEER_CONNECTION_STATE.CLOSED) || !self._bandwidthAdjuster || !self._peerBandwidth[targetMid]) {
clearInterval(pullInterval);
return;
}
self._retrieveStats(targetMid, function (err, stats) {
if (!(self._peerConnections[targetMid] && self._peerConnections[targetMid].signalingState !==
self.PEER_CONNECTION_STATE.CLOSED) || !self._bandwidthAdjuster) {
clearInterval(pullInterval);
return;
}
if (err) {
bandwidth.audio.send.push(0);
bandwidth.audio.recv.push(0);
bandwidth.video.send.push(0);
bandwidth.video.recv.push(0);
} else {
bandwidth.audio.send.push(stats.audio.sending.bytes * 8);
bandwidth.audio.recv.push(stats.audio.receiving.bytes * 8);
bandwidth.video.send.push(stats.video.sending.bytes * 8);
bandwidth.video.recv.push(stats.video.receiving.bytes * 8);
}
currentBlock++;
if (currentBlock === self._bandwidthAdjuster.interval) {
currentBlock = 0;
var totalAudioBw = formatTotalFn(bandwidth.audio.send);
var totalVideoBw = formatTotalFn(bandwidth.video.send);
if (!self._bandwidthAdjuster.useUploadBwOnly) {
totalAudioBw += formatTotalFn(bandwidth.audio.recv);
totalVideoBw += formatTotalFn(bandwidth.video.recv);
totalAudioBw = totalAudioBw / 2;
totalVideoBw = totalVideoBw / 2;
}
totalAudioBw = parseInt((totalAudioBw * (self._bandwidthAdjuster.limitAtPercentage / 100)) / 1000, 10);
totalVideoBw = parseInt((totalVideoBw * (self._bandwidthAdjuster.limitAtPercentage / 100)) / 1000, 10);
bandwidth = {
audio: { send: [], recv: [] },
video: { send: [], recv: [] }
};
self.refreshConnection(targetMid, {
bandwidth: { audio: totalAudioBw, video: totalVideoBw }
});
}
}, true, true);
}, 1000);
}
};
pc.onsignalingstatechange = function() {
log.debug([targetMid, 'RTCSignalingState', null, 'Peer connection state changed ->'], pc.signalingState);
if (AdapterJS.webrtcDetectedType === 'AppleWebKit' && pc.signalingState === self.PEER_CONNECTION_STATE.CLOSED) {
setTimeout(function () {
if (!pc.signalingStateClosed) {
self._trigger('peerConnectionState', self.PEER_CONNECTION_STATE.CLOSED, targetMid);
}
}, 10);
return;
}
self._trigger('peerConnectionState', pc.signalingState, targetMid);
};
pc.onicegatheringstatechange = function() {
log.log([targetMid, 'RTCIceGatheringState', null, 'Ice gathering state changed ->'], pc.iceGatheringState);
self._trigger('candidateGenerationState', pc.iceGatheringState, targetMid);
};
if (AdapterJS.webrtcDetectedBrowser === 'firefox') {
pc.removeStream = function (stream) {
var senders = pc.getSenders();
for (var s = 0; s < senders.length; s++) {
var tracks = stream.getTracks();
for (var t = 0; t < tracks.length; t++) {
if (tracks[t] === senders[s].track) {
pc.removeTrack(senders[s]);
}
}
}
};
}
return pc;
};
/**
* Function that handles the <code>_restartPeerConnection</code> scenario
* for MCU enabled Peer connections.
* This is implemented currently by making the user leave and join the Room again.
* The Peer ID will not stay the same though.
* @method _restartMCUConnection
* @private
* @for Skylink
* @since 0.6.1
*/
Skylink.prototype._restartMCUConnection = function(callback, doIceRestart, bwOptions) {
var self = this;
var listOfPeers = Object.keys(self._peerConnections);
var listOfPeerRestartErrors = {};
var sendRestartMsgFn = function (peerId) {
var restartMsg = {
type: self._SIG_MESSAGE_TYPE.RESTART,
mid: self._user.sid,
rid: self._room.id,
agent: AdapterJS.webrtcDetectedBrowser,
version: (AdapterJS.webrtcDetectedVersion || 0).toString(),
os: window.navigator.platform,
userInfo: self._getUserInfo(peerId),
target: peerId,
weight: self._peerPriorityWeight,
receiveOnly: self.getPeerInfo().config.receiveOnly,
enableIceTrickle: self._initOptions.enableIceTrickle,
enableDataChannel: self._initOptions.enableDataChannel,
enableIceRestart: self._enableIceRestart,
doIceRestart: self._initOptions.mcuUseRenegoRestart && doIceRestart === true &&
self._enableIceRestart && self._peerInformations[peerId] &&
self._peerInformations[peerId].config.enableIceRestart,
isRestartResend: false,
temasysPluginVersion: AdapterJS.WebRTCPlugin.plugin ? AdapterJS.WebRTCPlugin.plugin.VERSION : null,
SMProtocolVersion: self.SM_PROTOCOL_VERSION,
DTProtocolVersion: self.DT_PROTOCOL_VERSION
};
if (self._publishOnly) {
restartMsg.publishOnly = {
type: self._streams.screenshare && self._streams.screenshare.stream ? 'screenshare' : 'video'
};
}
if (self._parentId) {
restartMsg.parentId = self._parentId;
}
log.log([peerId, 'RTCPeerConnection', null, 'Sending restart message to signaling server ->'], restartMsg);
self._sendChannelMessage(restartMsg);
};
// Toggle the main bandwidth options.
if (bwOptions.bandwidth && typeof bwOptions.bandwidth === 'object') {
if (typeof bwOptions.bandwidth.audio === 'number') {
self._streamsBandwidthSettings.bAS.audio = bwOptions.bandwidth.audio;
}
if (typeof bwOptions.bandwidth.video === 'number') {
self._streamsBandwidthSettings.bAS.video = bwOptions.bandwidth.video;
}
if (typeof bwOptions.bandwidth.data === 'number') {
self._streamsBandwidthSettings.bAS.data = bwOptions.bandwidth.data;
}
}
if (bwOptions.googleXBandwidth && typeof bwOptions.googleXBandwidth === 'object') {
if (typeof bwOptions.googleXBandwidth.min === 'number') {
self._streamsBandwidthSettings.googleX.min = bwOptions.googleXBandwidth.min;
}
if (typeof bwOptions.googleXBandwidth.max === 'number') {
self._streamsBandwidthSettings.googleX.max = bwOptions.googleXBandwidth.max;
}
}
for (var i = 0; i < listOfPeers.length; i++) {
if (!self._peerConnections[listOfPeers[i]]) {
var error = 'Peer connection with peer does not exists. Unable to restart';
log.error([listOfPeers[i], 'PeerConnection', null, error]);
listOfPeerRestartErrors[listOfPeers[i]] = new Error(error);
continue;
}
if (listOfPeers[i] !== 'MCU') {
self._trigger('peerRestart', listOfPeers[i], self.getPeerInfo(listOfPeers[i]), true, false);
if (!self._initOptions.mcuUseRenegoRestart) {
sendRestartMsgFn(listOfPeers[i]);
}
}
}
self._trigger('serverPeerRestart', 'MCU', self.SERVER_PEER_TYPE.MCU);
if (self._initOptions.mcuUseRenegoRestart) {
self._peerEndOfCandidatesCounter.MCU = self._peerEndOfCandidatesCounter.MCU || {};
self._peerEndOfCandidatesCounter.MCU.len = 0;
sendRestartMsgFn('MCU');
} else {
// Restart with MCU = peer leaves then rejoins room
var peerJoinedFn = function (peerId, peerInfo, isSelf) {
log.log([null, 'PeerConnection', null, 'Invoked all peers to restart with MCU. Firing callback']);
if (typeof callback === 'function') {
if (Object.keys(listOfPeerRestartErrors).length > 0) {
callback({
refreshErrors: listOfPeerRestartErrors,
listOfPeers: listOfPeers
}, null);
} else {
callback(null, {
listOfPeers: listOfPeers
});
}
}
};
self.once('peerJoined', peerJoinedFn, function (peerId, peerInfo, isSelf) {
return isSelf;
});
self.leaveRoom(false, function (error, success) {
if (error) {
if (typeof callback === 'function') {
for (var i = 0; i < listOfPeers.length; i++) {
listOfPeerRestartErrors[listOfPeers[i]] = error;
}
callback({
refreshErrors: listOfPeerRestartErrors,
listOfPeers: listOfPeers
}, null);
}
} else {
//self._trigger('serverPeerLeft', 'MCU', self.SERVER_PEER_TYPE.MCU);
self.joinRoom(self._selectedRoom, {
bandwidth: bwOptions.bandwidth || {},
googleXBandwidth: bwOptions.googleXBandwidth || {},
sdpSettings: clone(self._sdpSettings),
voiceActivityDetection: self._voiceActivityDetection,
publishOnly: !!self._publishOnly,
parentId: self._parentId || null,
autoBandwidthAdjustment: self._bandwidthAdjuster
});
}
});
}
};
/**
* Function that handles the stats tabulation.
* @method _parseConnectionStats
* @private
* @for Skylink
* @since 0.6.16
*/
Skylink.prototype._parseConnectionStats = function(prevStats, stats, prop) {
var nTime = stats.timestamp;
var oTime = prevStats ? prevStats.timestamp || 0 : 0;
var nVal = parseFloat(stats[prop] || '0', 10);
var oVal = parseFloat(prevStats ? prevStats[prop] || '0' : '0', 10);
if ((new Date(nTime).getTime()) === (new Date(oTime).getTime())) {
return nVal;
}
return parseFloat(((nVal - oVal) / (nTime - oTime) * 1000).toFixed(3) || '0', 10);
};
/**
* Function that signals the end-of-candidates flag.
* @method _signalingEndOfCandidates
* @private
* @for Skylink
* @since 0.6.16
*/
Skylink.prototype._signalingEndOfCandidates = function(targetMid) {
var self = this;
if (!self._peerEndOfCandidatesCounter[targetMid]) {
return;
}
if (
// If peer connection exists first and state is not closed.
self._peerConnections[targetMid] && self._peerConnections[targetMid].signalingState !== self.PEER_CONNECTION_STATE.CLOSED &&
// If remote description is set
self._peerConnections[targetMid].remoteDescription && self._peerConnections[targetMid].remoteDescription.sdp &&
// If end-of-candidates signal is received
typeof self._peerEndOfCandidatesCounter[targetMid].expectedLen === 'number' &&
// If all ICE candidates are received
self._peerEndOfCandidatesCounter[targetMid].len >= self._peerEndOfCandidatesCounter[targetMid].expectedLen &&
// If there is no ICE candidates queue
(self._peerCandidatesQueue[targetMid] ? self._peerCandidatesQueue[targetMid].length === 0 : true) &&
// If it has not been set yet
!self._peerEndOfCandidatesCounter[targetMid].hasSet) {
log.debug([targetMid, 'RTCPeerConnection', null, 'Signaling of end-of-candidates remote ICE gathering.']);
self._peerEndOfCandidatesCounter[targetMid].hasSet = true;
try {
if (AdapterJS.webrtcDetectedBrowser === 'edge') {
var mLineCounter = -1;
var addedMids = [];
var sdpLines = self._peerConnections[targetMid].remoteDescription.sdp.split('\r\n');
var rejected = false;
for (var i = 0; i < sdpLines.length; i++) {
if (sdpLines[i].indexOf('m=') === 0) {
rejected = sdpLines[i].split(' ')[1] === '0';
mLineCounter++;
} else if (sdpLines[i].indexOf('a=mid:') === 0 && !rejected) {
var mid = sdpLines[i].split('a=mid:')[1] || '';
if (mid && addedMids.indexOf(mid) === -1) {
addedMids.push(mid);
self._addIceCandidate(targetMid, 'endofcan-' + (new Date()).getTime(), new RTCIceCandidate({
sdpMid: mid,
sdpMLineIndex: mLineCounter,
candidate: 'candidate:1 1 udp 1 0.0.0.0 9 typ endOfCandidates'
}));
// Start breaking after the first add because of max-bundle option
if (self._peerConnectionConfig.bundlePolicy === self.BUNDLE_POLICY.MAX_BUNDLE) {
break;
}
}
}
}
} else if (AdapterJS && !self._isLowerThanVersion(AdapterJS.VERSION, '0.14.0')) {
self._peerConnections[targetMid].addIceCandidate(null);
}
if (self._gatheredCandidates[targetMid]) {
self._trigger('candidatesGathered', targetMid, {
expected: self._peerEndOfCandidatesCounter[targetMid].expectedLen || 0,
received: self._peerEndOfCandidatesCounter[targetMid].len || 0,
processed: self._gatheredCandidates[targetMid].receiving.srflx.length +
self._gatheredCandidates[targetMid].receiving.relay.length +
self._gatheredCandidates[targetMid].receiving.host.length
});
}
} catch (error) {
log.error([targetMid, 'RTCPeerConnection', null, 'Failed signaling end-of-candidates ->'], error);
}
}
};