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implemented VWF audio.

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This commit is contained in:
morkt 2018-05-10 02:06:19 +04:00
parent b09a444aa8
commit 517fcb63d2
3 changed files with 148 additions and 2 deletions
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4
ArcFormats/Abogado/AudioADP.cs
View File

@ -127,7 +127,7 @@ namespace GameRes.Formats.Abogado
return (short)sample;
}
static readonly ushort[] QuantizeTable = {
internal static readonly ushort[] QuantizeTable = {
0x0007, 0x0008, 0x0009, 0x000A, 0x000B, 0x000C, 0x000D, 0x000E,
0x0010, 0x0011, 0x0013, 0x0015, 0x0017, 0x0019, 0x001C, 0x001F,
0x0022, 0x0025, 0x0029, 0x002D, 0x0032, 0x0037, 0x003C, 0x0042,
@ -141,6 +141,6 @@ namespace GameRes.Formats.Abogado
0x3BB9, 0x41B2, 0x4844, 0x4F7E, 0x5771, 0x602F, 0x69CE, 0x7462, 0x7FFF,
};
static int[] IncrementTable = { -1, -1, -1, -1, 2, 4, 6, 8, -1, -1, -1, -1, 2, 4, 6, 8 };
internal static readonly int[] IncrementTable = { -1, -1, -1, -1, 2, 4, 6, 8, -1, -1, -1, -1, 2, 4, 6, 8 };
}
}

1
ArcFormats/ArcFormats.csproj
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@ -127,6 +127,7 @@
<Compile Include="BlackRainbow\ArcSPPAK.cs" />
<Compile Include="Bonk\ArcPACK.cs" />
<Compile Include="Cadath\ArcDAF.cs" />
<Compile Include="Cadath\AudioVWF.cs" />
<Compile Include="Cadath\ImageCGF.cs" />
<Compile Include="Carriere\ArcARC.cs" />
<Compile Include="Carriere\ImageCGD.cs" />

145
ArcFormats/Cadath/AudioVWF.cs Normal file
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@ -0,0 +1,145 @@
//! \file AudioVWF.cs
//! \date 2018 May 09
//! \brief AZSYSTEM/1.0 compressed 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;
using System.ComponentModel.Composition;
using System.IO;
using GameRes.Utility;
using GameRes.Formats.Abogado;
using GameRes.Compression;
namespace GameRes.Formats.Cadath
{
[Export(typeof(AudioFormat))]
public class VwfAudio : AudioFormat
{
public override string Tag { get { return "VWF"; } }
public override string Description { get { return "AZSYSTEM/1.0 audio format"; } }
public override uint Signature { get { return 0x1A465756; } } // 'VWF'
public override bool CanWrite { get { return false; } }
public override SoundInput TryOpen (IBinaryStream file)
{
var header = file.ReadHeader (0x23);
int bits1_length = header.ToInt32 (0x13);
int bits2_length = header.ToInt32 (0x17);
var data = file.ReadBytes (bits1_length + bits2_length);
CgfDecoder.Decrypt (data, bits1_length);
int unpacked_length = header.ToInt32 (5);
uint sample_rate = header.ToUInt32 (0xD);
int sample_count = unpacked_length >> 1;
var bits1 = new byte[(sample_count + 7) >> 3];
var bits2 = new byte[sample_count >> 1];
using (var mem = new MemoryStream (data, 4, bits1_length-4))
using (var input = new ZLibStream (mem, CompressionMode.Decompress))
input.Read (bits1, 0, bits1.Length);
using (var mem = new MemoryStream (data, bits1_length+4, bits2_length-4))
using (var input = new ZLibStream (mem, CompressionMode.Decompress))
input.Read (bits2, 0, bits2.Length);
short init = header.ToInt16 (0x11);
var decoded = new short[sample_count];
DecodeAdp (bits2, decoded, sample_count, init);
var output = new byte[unpacked_length];
byte bit = 0x80;
int src = 0;
int dst = 0;
for (int i = 0; i < decoded.Length; ++i)
{
short sample = Math.Max (decoded[i], (short)0);
if ((bit & bits1[src]) != 0)
sample = (short)-sample;
LittleEndian.Pack (sample, output, dst);
dst += 2;
bit >>= 1;
if (0 == bit)
{
++src;
bit = 0x80;
}
}
var format = new WaveFormat {
FormatTag = 1,
Channels = 1,
SamplesPerSecond = sample_rate,
BlockAlign = 2,
BitsPerSample = 16,
};
format.SetBPS();
var pcm = new MemoryStream (output);
return new RawPcmInput (pcm, format);
}
void DecodeAdp (byte[] input, short[] output, int count, short init)
{
int src = 0;
int sample = init;
int quant_idx = 0;
byte s = 0;
bool odd = false;
ushort quant = AdpDecoder.QuantizeTable[0];
for (int i = 0; i < count; )
{
int v;
if (odd)
{
v = s & 0xF;
}
else
{
if (src >= input.Length)
break;
s = input[src++];
v = s >> 4;
}
quant_idx += AdpIncrementTable[v];
if (quant_idx < 0)
quant_idx = 0;
else if (quant_idx > 0x58)
quant_idx = 0x58;
int step = quant >> 3;
if ((v & 4) != 0)
step += quant;
if ((v & 2) != 0)
step += quant >> 1;
if ((v & 1) != 0)
step += quant >> 2;
if (v < 8)
sample = Math.Min (0x7FFF, sample + step);
else
sample = Math.Max (-32768, sample - step);
quant = AdpDecoder.QuantizeTable[quant_idx];
output[i++] = (short)sample;
odd = !odd;
}
}
static readonly sbyte[] AdpIncrementTable = { -1, -1, -1, 0, 2, 4, 6, 8, -1, -1, -1, 0, 2, 4, 6, 8 };
}
}