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56 lines
2.3 KiB
C#
56 lines
2.3 KiB
C#
//! \file AudioWAV.cs
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//! \date 2018 Apr 02
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//! \brief Brownie obfuscated WAV file.
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//
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// Copyright (C) 2018 by morkt
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to
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// deal in the Software without restriction, including without limitation the
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// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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// sell copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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// IN THE SOFTWARE.
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//
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using System.ComponentModel.Composition;
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using System.IO;
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namespace GameRes.Formats.Brownie
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{
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[Export(typeof(AudioFormat))]
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public class WavAudio : AudioFormat
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{
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public override string Tag { get { return "WAV/BROWNIE"; } }
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public override string Description { get { return "Brownie obfuscated WAV file"; } }
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public override uint Signature { get { return 0x58742367; } } // 'g#tX'
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public override bool CanWrite { get { return false; } }
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public override SoundInput TryOpen (IBinaryStream file)
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{
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var header = file.ReadHeader (0x10).ToArray();
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header[0] = (byte)'R';
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header[1] = (byte)'I';
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header[2] = (byte)'F';
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header[3] = (byte)'F';
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for (int i = 4; i < 0x10; ++i)
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header[i] ^= 0x5C;
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if (!header.AsciiEqual (8, "WAVE"))
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return null;
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Stream input = new StreamRegion (file.AsStream, 0x10);
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input = new PrefixStream (header, input);
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return new WaveInput (input);
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}
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}
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}
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