GARbro-mirror/Legacy/Ags32i/AudioAGS.cs
2018-04-03 02:00:53 +04:00

60 lines
2.3 KiB
C#

//! \file AudioAGS.cs
//! \date 2018 Mar 28
//! \brief AGS32i engine encrypted wave audio.
//
// 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.Ags32i
{
[Export(typeof(AudioFormat))]
public class AgsAudio : AudioFormat
{
public override string Tag { get { return "WAV/AGS32I"; } }
public override string Description { get { return "AGS32i engine encrypted wave audio"; } }
public override uint Signature { get { return 0x66424047; } }
public override bool CanWrite { get { return false; } }
public AgsAudio ()
{
Signatures = new uint[] { 0x66424047, 0 } ;
}
public override SoundInput TryOpen (IBinaryStream file)
{
uint key = file.Signature ^ 0x46464952u;
if (0 == key)
return null;
Stream input = new InputCryptoStream (file.AsStream, new Ags32Transform (key));
input = new SeekableStream (input);
var header = new byte[12];
input.Read (header, 0, 12);
if (!header.AsciiEqual (8, "WAVE"))
return null;
input.Position = 0;
return new WaveInput (input);
}
}
}