SDK20 and REV15 support (ryubing/ryujinx!50)

See merge request ryubing/ryujinx!50

src/Ryujinx.Audio/Renderer/Parameter/Effect/BiquadFilterEffectParameter1.cs

@@ -8,7 +8,7 @@ namespace Ryujinx.Audio.Renderer.Parameter.Effect
     /// <see cref="IEffectInParameter.SpecificData"/> for <see cref="Common.EffectType.BiquadFilter"/>.
     /// </summary>
     [StructLayout(LayoutKind.Sequential, Pack = 1)]
-    public struct BiquadFilterEffectParameter
+    public struct BiquadFilterEffectParameter1
     {
         /// <summary>
         /// The input channel indices that will be used by the <see cref="Dsp.AudioProcessor"/>.

src/Ryujinx.Audio/Renderer/Parameter/Effect/BiquadFilterEffectParameter2.cs

@@ -0,0 +1,49 @@
+using Ryujinx.Audio.Renderer.Server.Effect;
+using Ryujinx.Common.Memory;
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.Audio.Renderer.Parameter.Effect
+{
+    /// <summary>
+    /// <see cref="IEffectInParameter.SpecificData"/> for <see cref="Common.EffectType.BiquadFilter"/>.
+    /// </summary>
+    [StructLayout(LayoutKind.Sequential, Pack = 1)]
+    public struct BiquadFilterEffectParameter2
+    {
+        /// <summary>
+        /// The input channel indices that will be used by the <see cref="Dsp.AudioProcessor"/>.
+        /// </summary>
+        public Array6<byte> Input;
+
+        /// <summary>
+        /// The output channel indices that will be used by the <see cref="Dsp.AudioProcessor"/>.
+        /// </summary>
+        public Array6<byte> Output;
+
+        /// <summary>
+        /// Biquad filter numerator (b0, b1, b2).
+        /// </summary>
+        public Array3<float> Numerator;
+
+        /// <summary>
+        /// Biquad filter denominator (a1, a2).
+        /// </summary>
+        /// <remarks>a0 = 1</remarks>
+        public Array2<float> Denominator;
+
+        /// <summary>
+        /// The total channel count used.
+        /// </summary>
+        public byte ChannelCount;
+
+        /// <summary>
+        /// The current usage status of the effect on the client side.
+        /// </summary>
+        public UsageState Status;
+        
+        /// <summary>
+        /// Reserved/unused.
+        /// </summary>
+        private readonly ushort _reserved;
+    }
+}