Migrate Audio service to new IPC (#6285)

* Migrate audren to new IPC

* Migrate audout

* Migrate audin

* Migrate hwopus

* Bye bye old audio service

* Switch volume control to IHardwareDeviceDriver

* Somewhat unrelated changes

* Remove Concentus reference from HLE

* Implement OpenAudioRendererForManualExecution

* Remove SetVolume/GetVolume methods that are not necessary

* Remove SetVolume/GetVolume methods that are not necessary (2)

* Fix incorrect volume update

* PR feedback

* PR feedback

* Stub audrec

* Init outParameter

* Make FinalOutputRecorderParameter/Internal readonly

* Make FinalOutputRecorder IDisposable

* Fix HardwareOpusDecoderManager parameter buffers

* Opus work buffer size and error handling improvements

* Add AudioInProtocolName enum

* Fix potential divisions by zero

2 files changed, 37 insertions, 10 deletions

diff --git a/src/Ryujinx.Audio.Backends.OpenAL/OpenALHardwareDeviceDriver.cs b/src/Ryujinx.Audio.Backends.OpenAL/OpenALHardwareDeviceDriver.cs
index 744a4bc5..01286992 100644
--- a/src/Ryujinx.Audio.Backends.OpenAL/OpenALHardwareDeviceDriver.cs
+++ b/src/Ryujinx.Audio.Backends.OpenAL/OpenALHardwareDeviceDriver.cs
@@ -20,6 +20,25 @@ namespace Ryujinx.Audio.Backends.OpenAL
         private bool _stillRunning;
         private readonly Thread _updaterThread;
 
+        private float _volume;
+
+        public float Volume
+        {
+            get
+            {
+                return _volume;
+            }
+            set
+            {
+                _volume = value;
+
+                foreach (OpenALHardwareDeviceSession session in _sessions.Keys)
+                {
+                    session.UpdateMasterVolume(value);
+                }
+            }
+        }
+
         public OpenALHardwareDeviceDriver()
         {
             _device = ALC.OpenDevice("");
@@ -34,6 +53,8 @@ namespace Ryujinx.Audio.Backends.OpenAL
                 Name = "HardwareDeviceDriver.OpenAL",
             };
 
+            _volume = 1f;
+
             _updaterThread.Start();
         }
 
@@ -52,7 +73,7 @@ namespace Ryujinx.Audio.Backends.OpenAL
             }
         }
 
-        public IHardwareDeviceSession OpenDeviceSession(Direction direction, IVirtualMemoryManager memoryManager, SampleFormat sampleFormat, uint sampleRate, uint channelCount, float volume)
+        public IHardwareDeviceSession OpenDeviceSession(Direction direction, IVirtualMemoryManager memoryManager, SampleFormat sampleFormat, uint sampleRate, uint channelCount)
         {
             if (channelCount == 0)
             {
@@ -73,7 +94,7 @@ namespace Ryujinx.Audio.Backends.OpenAL
                 throw new ArgumentException($"{channelCount}");
             }
 
-            OpenALHardwareDeviceSession session = new(this, memoryManager, sampleFormat, sampleRate, channelCount, volume);
+            OpenALHardwareDeviceSession session = new(this, memoryManager, sampleFormat, sampleRate, channelCount);
 
             _sessions.TryAdd(session, 0);
 
diff --git a/src/Ryujinx.Audio.Backends.OpenAL/OpenALHardwareDeviceSession.cs b/src/Ryujinx.Audio.Backends.OpenAL/OpenALHardwareDeviceSession.cs
index a5282161..3b912913 100644
--- a/src/Ryujinx.Audio.Backends.OpenAL/OpenALHardwareDeviceSession.cs
+++ b/src/Ryujinx.Audio.Backends.OpenAL/OpenALHardwareDeviceSession.cs
@@ -16,10 +16,11 @@ namespace Ryujinx.Audio.Backends.OpenAL
         private bool _isActive;
         private readonly Queue<OpenALAudioBuffer> _queuedBuffers;
         private ulong _playedSampleCount;
+        private float _volume;
 
         private readonly object _lock = new();
 
-        public OpenALHardwareDeviceSession(OpenALHardwareDeviceDriver driver, IVirtualMemoryManager memoryManager, SampleFormat requestedSampleFormat, uint requestedSampleRate, uint requestedChannelCount, float requestedVolume) : base(memoryManager, requestedSampleFormat, requestedSampleRate, requestedChannelCount)
+        public OpenALHardwareDeviceSession(OpenALHardwareDeviceDriver driver, IVirtualMemoryManager memoryManager, SampleFormat requestedSampleFormat, uint requestedSampleRate, uint requestedChannelCount) : base(memoryManager, requestedSampleFormat, requestedSampleRate, requestedChannelCount)
         {
             _driver = driver;
             _queuedBuffers = new Queue<OpenALAudioBuffer>();
@@ -27,7 +28,7 @@ namespace Ryujinx.Audio.Backends.OpenAL
             _targetFormat = GetALFormat();
             _isActive = false;
             _playedSampleCount = 0;
-            SetVolume(requestedVolume);
+            SetVolume(1f);
         }
 
         private ALFormat GetALFormat()
@@ -85,17 +86,22 @@ namespace Ryujinx.Audio.Backends.OpenAL
 
         public override void SetVolume(float volume)
         {
-            lock (_lock)
-            {
-                AL.Source(_sourceId, ALSourcef.Gain, volume);
-            }
+            _volume = volume;
+
+            UpdateMasterVolume(_driver.Volume);
         }
 
         public override float GetVolume()
         {
-            AL.GetSource(_sourceId, ALSourcef.Gain, out float volume);
+            return _volume;
+        }
 
-            return volume;
+        public void UpdateMasterVolume(float newVolume)
+        {
+            lock (_lock)
+            {
+                AL.Source(_sourceId, ALSourcef.Gain, newVolume * _volume);
+            }
         }
 
         public override void Start()