From fd5894091645567bb13573a5af94f73bc1f9b60a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?H=C3=A5var=20Aamb=C3=B8=20Fosstveit?= <havar@fosstveit.net>
Date: Wed, 18 Mar 2020 10:07:15 +0100
Subject: [PATCH] Constrain screensharing in getDisplayMedia

---
 app/src/RoomClient.js  |  6 +++---
 app/src/ScreenShare.js | 17 +++++++++++++++--
 2 files changed, 18 insertions(+), 5 deletions(-)

diff --git a/app/src/RoomClient.js b/app/src/RoomClient.js
index 8b97745..73cb6ea 100644
--- a/app/src/RoomClient.js
+++ b/app/src/RoomClient.js
@@ -2484,9 +2484,9 @@ export default class RoomClient
 			logger.debug('enableScreenSharing() | calling getUserMedia()');
 
 			const stream = await this._screenSharing.start({
-				width     : 1280,
-				height    : 720,
-				frameRate : 3
+				width     : 1920,
+				height    : 1080,
+				frameRate : 5
 			});
 
 			track = stream.getVideoTracks()[0];
diff --git a/app/src/ScreenShare.js b/app/src/ScreenShare.js
index c819fb2..180fe2a 100644
--- a/app/src/ScreenShare.js
+++ b/app/src/ScreenShare.js
@@ -101,12 +101,25 @@ class DisplayMediaScreenShare
 		return true;
 	}
 
-	_toConstraints()
+	_toConstraints(options)
 	{
 		const constraints = {
-			video : true
+			video : {}
 		};
 
+		if (isFinite(options.width))
+		{
+			constraints.video.width = options.width;
+		}
+		if (isFinite(options.height))
+		{
+			constraints.video.height = options.height;
+		}
+		if (isFinite(options.frameRate))
+		{
+			constraints.video.frameRate = options.frameRate;
+		}
+
 		return constraints;
 	}
 }