From 517fcb63d2192aaf24588aaaac8ec060262c00d8 Mon Sep 17 00:00:00 2001 From: morkt Date: Thu, 10 May 2018 02:06:19 +0400 Subject: [PATCH] implemented VWF audio. --- ArcFormats/Abogado/AudioADP.cs | 4 +- ArcFormats/ArcFormats.csproj | 1 + ArcFormats/Cadath/AudioVWF.cs | 145 +++++++++++++++++++++++++++++++++ 3 files changed, 148 insertions(+), 2 deletions(-) create mode 100644 ArcFormats/Cadath/AudioVWF.cs diff --git a/ArcFormats/Abogado/AudioADP.cs b/ArcFormats/Abogado/AudioADP.cs index e9ce9a7b..6cb34cb3 100644 --- a/ArcFormats/Abogado/AudioADP.cs +++ b/ArcFormats/Abogado/AudioADP.cs @@ -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 }; } } diff --git a/ArcFormats/ArcFormats.csproj b/ArcFormats/ArcFormats.csproj index 0459f7b3..51f9fe9f 100644 --- a/ArcFormats/ArcFormats.csproj +++ b/ArcFormats/ArcFormats.csproj @@ -127,6 +127,7 @@ + diff --git a/ArcFormats/Cadath/AudioVWF.cs b/ArcFormats/Cadath/AudioVWF.cs new file mode 100644 index 00000000..1715785b --- /dev/null +++ b/ArcFormats/Cadath/AudioVWF.cs @@ -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 }; + } +}