Providing streaming AudFormat data.

AudFormat.GetPCMInputStream now returns data that is streamed, rather than a MemoryStream.

OpenRA.Game/StreamExts.cs

@@ -12,6 +12,7 @@
 using System;
 using System.Collections.Generic;
 using System.IO;
+using System.Linq;
 using System.Text;
 
 namespace OpenRA
@@ -117,7 +118,17 @@ namespace OpenRA
 		public static byte[] ReadAllBytes(this Stream s)
 		{
 			using (s)
-				return s.ReadBytes((int)(s.Length - s.Position));
+			{
+				if (s.CanSeek)
+					return s.ReadBytes((int)(s.Length - s.Position));
+
+				var bytes = new List<byte>();
+				var buffer = new byte[1024];
+				int count;
+				while ((count = s.Read(buffer, 0, buffer.Length)) > 0)
+					bytes.AddRange(buffer.Take(count));
+				return bytes.ToArray();
+			}
 		}
 
 		public static void Write(this Stream s, byte[] data)