review cleanup

src/state/MuteAllAudioModel.ts

@@ -0,0 +1,22 @@
+/*
+Copyright 2025 New Vector Ltd.
+
+SPDX-License-Identifier: AGPL-3.0-only OR LicenseRef-Element-Commercial
+Please see LICENSE in the repository root for full details.
+*/
+
+import { combineLatest, map, startWith } from "rxjs";
+
+import { setOutputEnabled$ } from "../controls";
+import { muteAllAudio as muteAllAudioSetting } from "../settings/settings";
+
+/**
+ * This can transition into sth more complete: `GroupCallViewModel.ts`
+ */
+export const muteAllAudio$ = combineLatest([
+  setOutputEnabled$,
+  muteAllAudioSetting.value$,
+]).pipe(
+  startWith([false, muteAllAudioSetting.getValue()]),
+  map(([outputEndabled, settingsMute]) => !outputEndabled || settingsMute),
+);