Move solution and projects to src

src/Ryujinx.Audio/Common/AudioUserBuffer.cs

@@ -0,0 +1,36 @@
+using System.Runtime.InteropServices;
+
+namespace Ryujinx.Audio.Common
+{
+    /// <summary>
+    /// Audio user buffer.
+    /// </summary>
+    [StructLayout(LayoutKind.Sequential, Pack = 1)]
+    public struct AudioUserBuffer
+    {
+        /// <summary>
+        /// Pointer to the next buffer (ignored).
+        /// </summary>
+        public ulong NextBuffer;
+
+        /// <summary>
+        /// Pointer to the user samples.
+        /// </summary>
+        public ulong Data;
+
+        /// <summary>
+        /// Capacity of the buffer (unused).
+        /// </summary>
+        public ulong Capacity;
+
+        /// <summary>
+        /// Size of the user samples region.
+        /// </summary>
+        public ulong DataSize;
+
+        /// <summary>
+        /// Offset in the user samples region (unused).
+        /// </summary>
+        public ulong DataOffset;
+    }
+}