From 7ccbe36716bb45a171b629d984220b4555394850 Mon Sep 17 00:00:00 2001
From: Talon Brown <talon.david.brown@gmail.com>
Date: Tue, 20 May 2025 18:08:40 -0500
Subject: [PATCH] Pause all audio attachments if receiving an incoming call.

(cherry picked from commit 664b4abda9b17caf45a56edc38a4a7b5c4134776)
---
 Signal/Calls/UserInterface/CallUIAdapter.swift |  3 +++
 Signal/ConversationView/CVAudioPlayback.swift  | 14 ++++++++++++++
 SignalUI/AV/AudioPlayer.swift                  |  1 +
 3 files changed, 18 insertions(+)

diff --git a/Signal/Calls/UserInterface/CallUIAdapter.swift b/Signal/Calls/UserInterface/CallUIAdapter.swift
index c23d419f8f7..7fbe7876b55 100644
--- a/Signal/Calls/UserInterface/CallUIAdapter.swift
+++ b/Signal/Calls/UserInterface/CallUIAdapter.swift
@@ -97,6 +97,9 @@ public class CallUIAdapter: NSObject {
         }
         Logger.info("remoteAddress: \(caller)")
 
+        // make sure we dont have any audio playing as that will bug audio when it interacts with the call service
+        AppEnvironment.shared.cvAudioPlayerRef.pauseAll()
+        
         // make sure we don't terminate audio session during call
         _ = SUIEnvironment.shared.audioSessionRef.startAudioActivity(call.commonState.audioActivity)
 
diff --git a/Signal/ConversationView/CVAudioPlayback.swift b/Signal/ConversationView/CVAudioPlayback.swift
index 9bffce74fee..df9b6f6ad12 100644
--- a/Signal/ConversationView/CVAudioPlayback.swift
+++ b/Signal/ConversationView/CVAudioPlayback.swift
@@ -248,6 +248,14 @@ public class CVAudioPlayer: NSObject {
         audioPlayback.stop()
         self.audioPlayback = nil
     }
+    
+    //pause all function
+    public func pauseAll() {
+        guard let audioPlayback = self.audioPlayback else {
+            return
+        }
+        audioPlayback.pause()
+    }
 }
 
 extension CVAudioPlayer: AudioPlayerDelegate {
@@ -396,6 +404,12 @@ private class CVAudioPlayback: NSObject, AudioPlayerDelegate {
     deinit {
         stop()
     }
+    
+    fileprivate func pause() {
+        AssertIsOnMainThread()
+        
+        audioPlayer.pause()
+    }
 
     fileprivate func stop() {
         AssertIsOnMainThread()
diff --git a/SignalUI/AV/AudioPlayer.swift b/SignalUI/AV/AudioPlayer.swift
index d179fe1dfa3..cfa1e8b88dd 100644
--- a/SignalUI/AV/AudioPlayer.swift
+++ b/SignalUI/AV/AudioPlayer.swift
@@ -195,6 +195,7 @@ public class AudioPlayer: NSObject {
         MainActor.assumeIsolated {
             DependenciesBridge.shared.deviceSleepManager?.removeBlock(blockObject: sleepBlockObject)
         }
+        teardownRemoteCommandCenter()
     }
 
     public func setupAudioPlayer() {