(Legacy): AQA archives, CTF images and MSF audio.

Legacy/Unknown/AudioMSF.cs

@@ -0,0 +1,61 @@
+//! \file       AudioMSF.cs
+//! \date       2018 Jun 19
+//! \brief      'Unknown' PCM audio format.
+//
+// Copyright (C) 2018 by morkt
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to
+// deal in the Software without restriction, including without limitation the
+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+// sell copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+// IN THE SOFTWARE.
+//
+
+using System.ComponentModel.Composition;
+using System.IO;
+
+namespace GameRes.Formats.Unknown
+{
+    [Export(typeof(AudioFormat))]
+    public class MsfAudio : AudioFormat
+    {
+        public override string         Tag { get { return "MSF"; } }
+        public override string Description { get { return "'Unknown' PCM audio format"; } }
+        public override uint     Signature { get { return 0x2046534D; } } // 'MSF '
+        public override bool      CanWrite { get { return false; } }
+
+        public override SoundInput TryOpen (IBinaryStream file)
+        {
+            var header = file.ReadBytes (0x30);
+            ushort key = (ushort)(101 * header.ToUInt16 (4) + 778);
+            for (int i = 0; i < header.Length; i += 2)
+            {
+                header[i  ] ^= (byte)key;
+                header[i+1] ^= (byte)(key >> 8);
+            }
+            var format = new WaveFormat {
+                FormatTag       = header.ToUInt16 (0x1C),
+                Channels        = header.ToUInt16 (0x1E),
+                SamplesPerSecond = header.ToUInt32 (0x20),
+                AverageBytesPerSecond = header.ToUInt32 (0x24),
+                BlockAlign      = header.ToUInt16 (0x28),
+                BitsPerSample   = header.ToUInt16 (0x2A),
+            };
+            uint pcm_size = header.ToUInt32 (0x18);
+            var pcm = new StreamRegion (file.AsStream, 0x30, pcm_size);
+            return new RawPcmInput (pcm, format);
+        }
+    }
+}