openvidu-browser: add OpenViduAdvancedConfiguration.rtcConfiguration

openvidu-browser/src/OpenVidu/Stream.ts

@@ -1240,6 +1240,7 @@ export class Stream {
                 onIceCandidate: this.connection.sendIceCandidate.bind(this.connection),
                 onIceConnectionStateException: this.onIceConnectionStateExceptionHandler.bind(this),
                 iceServers: this.getIceServersConf(),
+                rtcConfiguration: this.session.openvidu.advancedConfiguration.rtcConfiguration,
                 mediaStream: this.mediaStream,
                 mediaServer: this.session.openvidu.mediaServer,
                 typeOfVideo: this.typeOfVideo ? TypeOfVideo[this.typeOfVideo] : undefined
@@ -1412,6 +1413,7 @@ export class Stream {
                 onIceCandidate: this.connection.sendIceCandidate.bind(this.connection),
                 onIceConnectionStateException: this.onIceConnectionStateExceptionHandler.bind(this),
                 iceServers: this.getIceServersConf(),
+                rtcConfiguration: this.session.openvidu.advancedConfiguration.rtcConfiguration,
                 mediaServer: this.session.openvidu.mediaServer,
                 typeOfVideo: this.typeOfVideo ? TypeOfVideo[this.typeOfVideo] : undefined
             };
@@ -1728,6 +1730,8 @@ export class Stream {
                 this.session.openvidu.advancedConfiguration.iceServers === 'freeice'
                     ? undefined
                     : this.session.openvidu.advancedConfiguration.iceServers;
+        } else if (!!this.session.openvidu.advancedConfiguration.rtcConfiguration?.iceServers) {
+            returnValue = this.session.openvidu.advancedConfiguration.rtcConfiguration.iceServers;
         } else if (this.session.openvidu.iceServers) {
             returnValue = this.session.openvidu.iceServers;
         } else {

openvidu-browser/src/OpenViduInternal/Interfaces/Public/OpenViduAdvancedConfiguration.ts

@@ -20,11 +20,18 @@
  */
 export interface OpenViduAdvancedConfiguration {
     /**
-     * Array of [RTCIceServer](https://developer.mozilla.org/en-US/docs/Web/API/RTCIceServer) to be used by OpenVidu Browser. By default OpenVidu will generate the required credentials to use the COTURN server hosted along OpenVidu Server
+     * Array of [RTCIceServer](https://developer.mozilla.org/en-US/docs/Web/API/RTCIceServer) to be used by OpenVidu Browser. By default OpenVidu will generate the required credentials to use the COTURN server hosted along OpenVidu Server.
      * You can also set this property to string 'freeice' to force the use of free STUN servers instead (got thanks to [freeice](https://github.com/DamonOehlman/freeice) library).
+     *
+     * > **WARNING**: this value has priority over the standard `iceServers` property of [[rtcConfiguration]]. It will override any value in `OpenViduAdvancedConfiguration.rtcConfiguration.iceServers`
      */
     iceServers?: RTCIceServer[] | string;
 
+    /**
+     * Custom configuration for all [RTCPeerConnection](https://developer.mozilla.org/en-US/docs/Web/API/RTCPeerConnection/RTCPeerConnection#parameters) objects. This object will be passed as is to all RTCPeerConnection constructor (all Publishers and Subscribers).
+     */
+    rtcConfiguration?: RTCConfiguration;
+
     /**
      * URL to a custom screen share extension for Chrome (always based on ours: [openvidu-screen-sharing-chrome-extension](https://github.com/OpenVidu/openvidu-screen-sharing-chrome-extension)) to be used instead of the default one.
      * Must be something like this: `https://chrome.google.com/webstore/detail/YOUR_WEBSTORE_EXTENSION_NAME/YOUR_EXTENSION_ID`

openvidu-browser/src/OpenViduInternal/WebRtcPeer/WebRtcPeer.ts

@@ -41,6 +41,7 @@ export interface WebRtcPeerConfiguration {
     onIceCandidate: (event: RTCIceCandidate) => void;
     onIceConnectionStateException: (exceptionName: ExceptionEventName, message: string, data?: any) => void;
     iceServers?: RTCIceServer[];
+    rtcConfiguration?: RTCConfiguration;
     mediaStream?: MediaStream | null;
     mode?: 'sendonly' | 'recvonly' | 'sendrecv';
     id?: string;
@@ -63,6 +64,7 @@ export class WebRtcPeer {
         this.configuration = {
             ...configuration,
             iceServers: !!configuration.iceServers && configuration.iceServers.length > 0 ? configuration.iceServers : freeice(),
+            rtcConfiguration: configuration.rtcConfiguration !== undefined ? configuration.rtcConfiguration : {},
             mediaStream: configuration.mediaStream !== undefined ? configuration.mediaStream : null,
             mode: !!configuration.mode ? configuration.mode : 'sendrecv',
             id: !!configuration.id ? configuration.id : this.generateUniqueId()
@@ -70,7 +72,13 @@ export class WebRtcPeer {
         // prettier-ignore
         logger.debug(`[WebRtcPeer] configuration:\n${JSON.stringify(this.configuration, null, 2)}`);
 
-        this.pc = new RTCPeerConnection({ iceServers: this.configuration.iceServers });
+        let rtcConfiguration: RTCConfiguration = this.configuration.rtcConfiguration
+            ? this.configuration.rtcConfiguration
+            : { iceServers: this.configuration.iceServers };
+        if (!rtcConfiguration.iceServers && this.configuration.iceServers) {
+            rtcConfiguration.iceServers = this.configuration.iceServers;
+        }
+        this.pc = new RTCPeerConnection(rtcConfiguration);
 
         this.pc.addEventListener('icecandidate', (event: RTCPeerConnectionIceEvent) => {
             if (event.candidate !== null) {