From d64247d12dfd458e79046631e94a89b979b496ea Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?H=C3=A5var=20Aamb=C3=B8=20Fosstveit?= <havar@fosstveit.net>
Date: Sat, 21 Mar 2020 21:03:11 +0100
Subject: [PATCH] Expose simulcast settings to client config

---
 app/public/config/config.example.js | 14 +++++++++++++-
 app/src/RoomClient.js               | 25 ++++++++++++++++++++++---
 2 files changed, 35 insertions(+), 4 deletions(-)

diff --git a/app/public/config/config.example.js b/app/public/config/config.example.js
index a375cbb..6d78565 100644
--- a/app/public/config/config.example.js
+++ b/app/public/config/config.example.js
@@ -22,7 +22,19 @@ var config =
 	 * veryhigh ~ 1920x1080
 	 * ultra ~ 3840x2560
 	 **/
-	defaultResolution : 'medium',
+	defaultResolution  : 'medium',
+	// Enable or disable simulcast for webcam video
+	simulcast          : true,
+	// Enable or disable simulcast for screen sharing video
+	simulcastSharing   : false,
+	// Simulcast encoding layers and levels
+	simulcastEncodings :
+	[
+		{ scaleResolutionDownBy: 4 },
+		{ scaleResolutionDownBy: 2 },
+		{ scaleResolutionDownBy: 1 }
+	],
+	// Socket.io request timeout
 	requestTimeout    : 10000,
 	transportOptions  :
 	{
diff --git a/app/src/RoomClient.js b/app/src/RoomClient.js
index 1efcab2..f5693ae 100644
--- a/app/src/RoomClient.js
+++ b/app/src/RoomClient.js
@@ -157,9 +157,15 @@ export default class RoomClient
 		// Whether simulcast should be used.
 		this._useSimulcast = useSimulcast;
 
+		if ('simulcast' in window.config)
+			this._useSimulcast = window.config.simulcast;
+
 		// Whether simulcast should be used for sharing
 		this._useSharingSimulcast = useSharingSimulcast;
 
+		if ('simulcastSharing' in window.config)
+			this._useSharingSimulcast = window.config.simulcastSharing;
+
 		this._muted = muted;
 
 		// This device
@@ -2574,8 +2580,16 @@ export default class RoomClient
 				}
 				else
 				{
-					encodings = VIDEO_SIMULCAST_ENCODINGS
-						.map((encoding) => ({ ...encoding, dtx: true }));
+					if ('simulcastEncodings' in window.config)
+					{
+						encodings = window.config.simulcastEncodings
+							.map((encoding) => ({ ...encoding, dtx: true }));
+					}
+					else
+					{
+						encodings = VIDEO_SIMULCAST_ENCODINGS
+							.map((encoding) => ({ ...encoding, dtx: true }));
+					}
 				}
 
 				this._screenSharingProducer = await this._sendTransport.produce(
@@ -2743,7 +2757,12 @@ export default class RoomClient
 				if (firstVideoCodec.mimeType.toLowerCase() === 'video/vp9')
 					encodings = VIDEO_KSVC_ENCODINGS;
 				else
-					encodings = VIDEO_SIMULCAST_ENCODINGS;
+				{
+					if ('simulcastEncodings' in window.config)
+						encodings = window.config.simulcastEncodings;
+					else
+						encodings = VIDEO_SIMULCAST_ENCODINGS;
+				}
 
 				this._webcamProducer = await this._sendTransport.produce(
 					{