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

src/Ryujinx.Horizon/Sdk/Audio/Detail/IAudioOut.cs

@@ -0,0 +1,25 @@
+using Ryujinx.Audio.Common;
+using Ryujinx.Horizon.Common;
+using Ryujinx.Horizon.Sdk.Sf;
+using System;
+
+namespace Ryujinx.Horizon.Sdk.Audio.Detail
+{
+    interface IAudioOut : IServiceObject
+    {
+        Result GetAudioOutState(out AudioDeviceState state);
+        Result Start();
+        Result Stop();
+        Result AppendAudioOutBuffer(ulong bufferTag, ReadOnlySpan<AudioUserBuffer> buffer);
+        Result RegisterBufferEvent(out int eventHandle);
+        Result GetReleasedAudioOutBuffers(out uint count, Span<ulong> bufferTags);
+        Result ContainsAudioOutBuffer(out bool contains, ulong bufferTag);
+        Result AppendAudioOutBufferAuto(ulong bufferTag, ReadOnlySpan<AudioUserBuffer> buffer);
+        Result GetReleasedAudioOutBuffersAuto(out uint count, Span<ulong> bufferTags);
+        Result GetAudioOutBufferCount(out uint bufferCount);
+        Result GetAudioOutPlayedSampleCount(out ulong sampleCount);
+        Result FlushAudioOutBuffers(out bool pending);
+        Result SetAudioOutVolume(float volume);
+        Result GetAudioOutVolume(out float volume);
+    }
+}