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60 lines
2.4 KiB
C#
60 lines
2.4 KiB
C#
//! \file AudioOGV.cs
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//! \date Sat Apr 18 14:18:47 2015
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//! \brief ShiinaRio Ogg/Vorbis audio format.
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//
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// Copyright (C) 2015 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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using GameRes.Utility;
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namespace GameRes.Formats.ShiinaRio
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{
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[Export(typeof(AudioFormat))]
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public class OgvAudio : OggAudio
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{
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public override string Tag { get { return "OGV"; } }
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public override string Description { get { return "ShiinaRio audio format (Ogg/Vorbis)"; } }
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public override uint Signature { get { return 0x0056474f; } } // 'OGV'
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public override SoundInput TryOpen (IBinaryStream file)
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{
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file.Position = 0xc;
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var header = new byte[8];
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if (8 != file.Read (header, 0, 8))
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return null;
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if (!Binary.AsciiEqual (header, 0, "fmt "))
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return null;
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uint offset = LittleEndian.ToUInt32 (header, 4);
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file.Seek (offset, SeekOrigin.Current);
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if (8 != file.Read (header, 0, 8))
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return null;
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if (!Binary.AsciiEqual (header, 0, "data"))
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return null;
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var input = new StreamRegion (file.AsStream, file.Position);
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return new OggInput (input);
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// input is left undisposed in case of exception.
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}
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}
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}
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