From 80a48027f5f2d6ac00055e9352a7d17f82cc67e4 Mon Sep 17 00:00:00 2001
From: Will Hunt <will@half-shot.uk>
Date: Thu, 9 Oct 2025 12:00:35 +0100
Subject: [PATCH 1/2] Forward calling settings to Element Call.

---
 src/models/Call.ts | 74 +++++++++++++++++++++++++++++++++-------------
 1 file changed, 54 insertions(+), 20 deletions(-)

diff --git a/src/models/Call.ts b/src/models/Call.ts
index 356aef1f3bc..eac9577dc9d 100644
--- a/src/models/Call.ts
+++ b/src/models/Call.ts
@@ -661,6 +661,59 @@ export class ElementCall extends Call {
         }
     }
 
+    /**
+     * Append parameters specific to the users settings
+     * @param params Existing URL parameters
+     */
+    private static appendSettingsParams(params: URLSearchParams): void {
+        const preferredAudioOutput = SettingsStore.getValue("webrtc_audiooutput", null, true);
+        const preferredAudioInput = SettingsStore.getValue("webrtc_audioinput", null, true);
+        const videoInput = SettingsStore.getValue("webrtc_videoinput", null, true);
+        const autoGainControl = SettingsStore.getValue("webrtc_audio_autoGainControl", null, true);
+        const echoCancellation = SettingsStore.getValue("webrtc_audio_echoCancellation", null, true);
+        const noiseSuppression = SettingsStore.getValue("webrtc_audio_noiseSuppression", null, true);
+
+        if (preferredAudioOutput) {
+            params.set("audio_output", preferredAudioOutput);
+        }
+        if (preferredAudioInput) {
+            params.set("audio_input", preferredAudioInput);
+        }
+        if (videoInput) {
+            params.set("video_input", videoInput);
+        }
+        if (autoGainControl !== undefined) {
+            params.set("auto_gaincontrol", autoGainControl.toString());
+        }
+        if (echoCancellation !== undefined) {
+            params.set("echo_cancellation", echoCancellation.toString());
+        }
+        if (noiseSuppression !== undefined) {
+            params.set("noise_suppression", noiseSuppression.toString());
+        }
+
+        if (SettingsStore.getValue("fallbackICEServerAllowed")) {
+            params.append("allowIceFallback", "true");
+        }
+
+        if (SettingsStore.getValue("feature_allow_screen_share_only_mode")) {
+            params.append("allowVoipWithNoMedia", "true");
+        }
+
+        // Set custom fonts
+        if (SettingsStore.getValue("useSystemFont")) {
+            SettingsStore.getValue("systemFont")
+                .split(",")
+                .map((font) => {
+                    // Strip whitespace and quotes
+                    font = font.trim();
+                    if (font.startsWith('"') && font.endsWith('"')) font = font.slice(1, -1);
+                    return font;
+                })
+                .forEach((font) => params.append("font", font));
+        }
+    }
+
     /**
      * Generate the correct Element Call widget URL for creating or joining a call in this room.
      * Unless `Developer.elementCallUrl` is set, the widget will use the embedded Element Call package.
@@ -700,28 +753,9 @@ export class ElementCall extends Call {
             params.append("rageshakeSubmitUrl", rageshakeSubmitUrl);
         }
 
-        if (SettingsStore.getValue("fallbackICEServerAllowed")) {
-            params.append("allowIceFallback", "true");
-        }
-
-        if (SettingsStore.getValue("feature_allow_screen_share_only_mode")) {
-            params.append("allowVoipWithNoMedia", "true");
-        }
-
-        // Set custom fonts
-        if (SettingsStore.getValue("useSystemFont")) {
-            SettingsStore.getValue("systemFont")
-                .split(",")
-                .map((font) => {
-                    // Strip whitespace and quotes
-                    font = font.trim();
-                    if (font.startsWith('"') && font.endsWith('"')) font = font.slice(1, -1);
-                    return font;
-                })
-                .forEach((font) => params.append("font", font));
-        }
         this.appendAnalyticsParams(params, client);
         this.appendRoomParams(params, client, roomId);
+        this.appendSettingsParams(params);
 
         const replacedUrl = params.toString().replace(/%24/g, "$");
         url.hash = `#?${replacedUrl}`;

From c9d0aabe9f2fc06c424bbd8fe418e27d02653f8e Mon Sep 17 00:00:00 2001
From: Will Hunt <will@half-shot.uk>
Date: Thu, 9 Oct 2025 12:04:18 +0100
Subject: [PATCH 2/2] Add a warning

---
 src/i18n/strings/en_EN.json | 1 +
 src/settings/Settings.tsx   | 1 +
 2 files changed, 2 insertions(+)

diff --git a/src/i18n/strings/en_EN.json b/src/i18n/strings/en_EN.json
index b4405e21903..60484dbfc5a 100644
--- a/src/i18n/strings/en_EN.json
+++ b/src/i18n/strings/en_EN.json
@@ -3084,6 +3084,7 @@
             "enable_fallback_ice_server": "Allow fallback call assist server (%(server)s)",
             "enable_fallback_ice_server_description": "Only applies if your homeserver does not offer one. Your IP address would be shared during a call.",
             "mirror_local_feed": "Mirror local video feed",
+            "mirror_local_feed_description": "Not supported when using Element Call",
             "missing_permissions_prompt": "Missing media permissions, click the button below to request.",
             "noise_suppression": "Noise suppression",
             "request_permissions": "Request media permissions",
diff --git a/src/settings/Settings.tsx b/src/settings/Settings.tsx
index dfb869c31c7..7e40592845d 100644
--- a/src/settings/Settings.tsx
+++ b/src/settings/Settings.tsx
@@ -941,6 +941,7 @@ export const SETTINGS: Settings = {
     "VideoView.flipVideoHorizontally": {
         supportedLevels: LEVELS_ACCOUNT_SETTINGS,
         displayName: _td("settings|voip|mirror_local_feed"),
+        description: _td("settings|voip|mirror_local_feed_description"),
         default: true,
     },
     "theme": {