From 69a16ccdd53b4c3aae9b6a8e1957854f12aaf6ae Mon Sep 17 00:00:00 2001
From: Jannis Braun <151788261+TheZwiss@users.noreply.github.com>
Date: Tue, 24 Mar 2026 04:35:33 +0100
Subject: [PATCH] fix: preserve hwOverdrive across mid-stream codec restart
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stopScreenShare() resets hwOverdrive: false, which clobbers the
user's intent when switching VP9 → H.264 HW mid-stream. Save
and restore the flag around the restart.
---
 packages/web/src/hooks/useLiveKit.ts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/packages/web/src/hooks/useLiveKit.ts b/packages/web/src/hooks/useLiveKit.ts
index bc6f403a..adf17bea 100644
--- a/packages/web/src/hooks/useLiveKit.ts
+++ b/packages/web/src/hooks/useLiveKit.ts
@@ -616,7 +616,11 @@ export function useLiveKit() {
         // Codec changed mid-stream — must restart (codec is baked into SDP negotiation)
         if (_publishedScreenShareCodec && _publishedScreenShareCodec !== opts.publish.videoCodec) {
           _publishedScreenShareCodec = null;
+          // Preserve hwOverdrive across restart — stopScreenShare() resets it,
+          // but the user's intent (the pill they just clicked) must survive.
+          const preserveHwOverdrive = useVoiceStore.getState().hwOverdrive;
           await stopScreenShare(room);
+          if (preserveHwOverdrive) useVoiceStore.setState({ hwOverdrive: true });
           setTimeout(() => startScreenShare(room).catch(() => {}), 200);
           return;
         }