From d34ab921d4fa72c82dad4694e5e57785ee9eeb5a Mon Sep 17 00:00:00 2001
From: fwcd <fwcd@fwcd.dev>
Date: Fri, 2 Feb 2024 16:57:36 +0100
Subject: [PATCH] SoundManager: Set up AVAudioSession on iOS

---
 CMakeLists.txt                 |  1 +
 src/soundio/soundmanager.cpp   |  8 ++++++++
 src/soundio/soundmanagerios.h  |  7 +++++++
 src/soundio/soundmanagerios.mm | 31 +++++++++++++++++++++++++++++++
 4 files changed, 47 insertions(+)
 create mode 100644 src/soundio/soundmanagerios.h
 create mode 100644 src/soundio/soundmanagerios.mm

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 834ece63a4c..9d7e2071af5 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1544,6 +1544,7 @@ if(APPLE)
 
   if(IOS)
     target_sources(mixxx-lib PRIVATE
+      src/soundio/soundmanagerios.mm
       src/util/screensaverios.mm
     )
   else()
diff --git a/src/soundio/soundmanager.cpp b/src/soundio/soundmanager.cpp
index f03558bd6a3..503dc05802b 100644
--- a/src/soundio/soundmanager.cpp
+++ b/src/soundio/soundmanager.cpp
@@ -4,6 +4,7 @@
 
 #include <QLibrary>
 #include <QThread>
+#include <QtGlobal>
 #include <cstring> // for memcpy and strcmp
 
 #include "control/controlobject.h"
@@ -22,6 +23,10 @@
 #include "util/versionstore.h"
 #include "vinylcontrol/defs_vinylcontrol.h"
 
+#ifdef Q_OS_IOS
+#include "soundio/soundmanagerios.h"
+#endif
+
 typedef PaError (*SetJackClientName)(const char *name);
 
 namespace {
@@ -249,6 +254,9 @@ void SoundManager::queryDevicesPortaudio() {
     if (!m_paInitialized) {
 #ifdef Q_OS_LINUX
         setJACKName();
+#endif
+#ifdef Q_OS_IOS
+        mixxx::initializeAVAudioSession();
 #endif
         err = Pa_Initialize();
         m_paInitialized = true;
diff --git a/src/soundio/soundmanagerios.h b/src/soundio/soundmanagerios.h
new file mode 100644
index 00000000000..4ca6498d4da
--- /dev/null
+++ b/src/soundio/soundmanagerios.h
@@ -0,0 +1,7 @@
+#pragma once
+
+namespace mixxx {
+
+void initializeAVAudioSession();
+
+}; // namespace mixxx
diff --git a/src/soundio/soundmanagerios.mm b/src/soundio/soundmanagerios.mm
new file mode 100644
index 00000000000..b00f0284476
--- /dev/null
+++ b/src/soundio/soundmanagerios.mm
@@ -0,0 +1,31 @@
+#include <QDebug>
+#include <QtGlobal>
+
+#import <AVFAudio/AVFAudio.h>
+
+namespace mixxx {
+
+void initializeAVAudioSession() {
+    AVAudioSession* session = AVAudioSession.sharedInstance;
+    AVAudioSessionCategory category = AVAudioSessionCategoryPlayback;
+    AVAudioSessionMode mode = AVAudioSessionModeDefault;
+    AVAudioSessionCategoryOptions options =
+            AVAudioSessionCategoryOptionMixWithOthers |
+            AVAudioSessionCategoryOptionAllowAirPlay |
+            AVAudioSessionCategoryOptionAllowBluetoothA2DP;
+
+    NSError* error = nil;
+    [session setCategory:category mode:mode options:options error:&error];
+    if (error != nil) {
+        qWarning() << "Could not initialize AVAudioSession:"
+                   << error.localizedDescription;
+    }
+
+    [session setActive:true error:&error];
+    if (error != nil) {
+        qWarning() << "Could not activate AVAudioSession:"
+                   << error.localizedDescription;
+    }
+}
+
+}; // namespace mixxx