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https://github.com/crskycode/GARbro.git
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103 lines
4.3 KiB
C#
103 lines
4.3 KiB
C#
//! \file ArcAWF.cs
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//! \date Thu Nov 05 01:47:53 2015
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//! \brief Silky's audio archive.
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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;
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using System.Collections.Generic;
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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.Silky
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{
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[Export(typeof(ArchiveFormat))]
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public class AwfOpener : ArchiveFormat
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{
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public override string Tag { get { return "AWF"; } }
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public override string Description { get { return "Silky's audio archive"; } }
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public override uint Signature { get { return 0; } }
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public override bool IsHierarchic { get { return false; } }
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public override bool CanWrite { get { return false; } }
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public override ArcFile TryOpen (ArcView file)
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{
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// enforce extension to avoid false positives
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if (!file.Name.EndsWith (".awf", StringComparison.InvariantCultureIgnoreCase))
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return null;
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int count = file.View.ReadInt32 (0);
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if (!IsSaneCount (count))
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return null;
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uint index_offset = 4;
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uint index_size = (uint)count*0x34;
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if (index_size > file.View.Reserve (index_offset, index_size))
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return null;
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// rather loose criterion, haven't found anything better yet.
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bool is_mp3 = VFS.IsPathEqualsToFileName (file.Name, "voice.awf");
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var dir = new List<Entry> (count);
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for (int i = 0; i < count; ++i)
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{
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var name = file.View.ReadString (index_offset, 0x20);
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if (is_mp3)
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name = Path.ChangeExtension (name, "mp3");
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var entry = FormatCatalog.Instance.Create<Entry> (name);
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entry.Offset = file.View.ReadUInt32 (index_offset+0x20);
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entry.Size = file.View.ReadUInt32 (index_offset+0x24);
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if (!entry.CheckPlacement (file.MaxOffset))
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return null;
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dir.Add (entry);
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index_offset += 0x34;
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}
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return new ArcFile (file, this, dir);
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}
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public override Stream OpenEntry (ArcFile arc, Entry entry)
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{
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if (entry.Name.EndsWith (".mp3", StringComparison.InvariantCultureIgnoreCase))
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return base.OpenEntry (arc, entry);
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// prepend WAV header
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var header = new byte[0x2C];
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using (var mem = new MemoryStream (header))
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using (var wav = new BinaryWriter (mem))
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{
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wav.Write ("RIFF".ToCharArray());
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wav.Write ((uint)(entry.Size + 0x24u));
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wav.Write ("WAVE".ToCharArray());
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wav.Write ("fmt ".ToCharArray());
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wav.Write (0x10);
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wav.Write ((ushort)1);
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wav.Write ((ushort)2);
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wav.Write (22050);
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wav.Write (22050*4);
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wav.Write ((ushort)4);
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wav.Write ((ushort)16);
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wav.Write ("data".ToCharArray());
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wav.Write (entry.Size);
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}
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var pcm = arc.File.CreateStream (entry.Offset, entry.Size);
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return new PrefixStream (header, pcm);
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}
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}
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}
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