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(Legacy): implemented CrossNet ADP audio.
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morkt
parent
156fb2babb
commit
e1c2d170a1
155
Legacy/CrossNet/AudioADP.cs
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155
Legacy/CrossNet/AudioADP.cs
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//! \file AudioADP.cs
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//! \date 2017 Dec 29
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//! \brief CrossNet ADPCM-compressed audio.
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//
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// Copyright (C) 2017 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.CrossNet
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{
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[Export(typeof(AudioFormat))]
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public class AdpAudio : AudioFormat
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{
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public override string Tag { get { return "ADP/CROSSNET"; } }
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public override string Description { get { return "CrossNet ADPCM-compressed audio"; } }
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public override uint Signature { get { return 0; } }
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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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if (file.Signature != Wav.Signature || !file.Name.HasExtension (".adp"))
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return null;
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var header = file.ReadHeader (0x24);
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if (!header.AsciiEqual (8, "WAVEfmt "))
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return null;
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uint fmt_size = header.ToUInt32 (0x10);
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int codec = header.ToUInt16 (0x14);
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if (0xFFFF != codec)
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return null;
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uint sample_rate = header.ToUInt32 (0x18);
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ushort channels = header.ToUInt16 (0x16);
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if (channels != 1 && channels != 2)
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return null;
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int shift = 2;
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uint section_offset = 0x14 + fmt_size;
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uint section_size;
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for (;;)
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{
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file.Position = section_offset;
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uint section_id = file.ReadUInt32();
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section_size = file.ReadUInt32();
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if (section_id == 0x61746164) // 'data'
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break;
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if (section_id == 0x74666873) // 'shft'
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shift = file.ReadInt32();
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section_offset += 8 + ((section_size + 1u) & ~1u);
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}
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int samples = (int)(2 * section_size / channels);
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if (shift < 0)
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shift = 2;
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var output = new byte[samples * 2 * channels];
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var first = new AdpDecoder (shift);
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int dst = 0;
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if (1 == channels)
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{
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while (samples > 0)
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{
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byte v = file.ReadUInt8();
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LittleEndian.Pack (first.DecodeSample (v), output, dst);
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LittleEndian.Pack (first.DecodeSample (v >> 4), output, dst+2);
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dst += 4;
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samples -= 2;
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}
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}
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else
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{
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var second = new AdpDecoder (shift);
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while (samples > 0)
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{
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byte v = file.ReadUInt8();
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LittleEndian.Pack (first.DecodeSample (v), output, dst);
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LittleEndian.Pack (first.DecodeSample (v >> 4), output, dst+4);
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v = file.ReadUInt8();
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LittleEndian.Pack (second.DecodeSample (v), output, dst+2);
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LittleEndian.Pack (second.DecodeSample (v >> 4), output, dst+6);
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dst += 8;
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samples -= 2;
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}
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}
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var format = new WaveFormat();
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format.FormatTag = 1;
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format.Channels = channels;
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format.SamplesPerSecond = sample_rate;
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format.AverageBytesPerSecond = 2u * channels * sample_rate;
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format.BlockAlign = (ushort)(2 * channels);
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format.BitsPerSample = 0x10;
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var pcm = new MemoryStream (output);
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var sound = new RawPcmInput (pcm, format);
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file.Dispose();
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return sound;
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}
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}
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internal class AdpDecoder
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{
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int prev_sample = 0;
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int quant_idx = 0;
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int shift;
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public AdpDecoder (int shift = 2)
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{
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this.shift = shift;
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}
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public short DecodeSample (int code)
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{
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code &= 0xF;
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int sample = (ScaleTable[code] * QuantizeTable[quant_idx] << shift) + prev_sample;
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if (sample < -32768 )
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sample = -32768;
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else if (sample > 0x7FFF)
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sample = 0x7FFF;
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quant_idx += IncrementTable[code];
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if (quant_idx < 0)
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quant_idx = 0;
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else if (quant_idx > 48)
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quant_idx = 48;
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prev_sample = sample;
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return (short)sample;
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}
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static readonly ushort[] QuantizeTable = {
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0x010, 0x011, 0x013, 0x015, 0x017, 0x019, 0x01C, 0x01F, 0x022, 0x025, 0x029, 0x02D, 0x032, 0x037,
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0x03C, 0x042, 0x049, 0x050, 0x058, 0x061, 0x06B, 0x076, 0x082, 0x08F, 0x09D, 0x0AD, 0x0BE, 0x0D1,
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0x0E6, 0x0FD, 0x117, 0x133, 0x151, 0x173, 0x198, 0x1C1, 0x1EE, 0x220, 0x256, 0x292, 0x2D4, 0x31C,
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0x36C, 0x3C3, 0x424, 0x48E, 0x502, 0x583, 0x610
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};
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static readonly sbyte[] ScaleTable = { 1, 3, 5, 7, 9, 11, 13, 15, -1, -3, -5, -7, -9, -11, -13, -15 };
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static readonly sbyte[] IncrementTable = { -1, -1, -1, -1, 2, 4, 6, 8, -1, -1, -1, -1, 2, 4, 6, 8 };
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}
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}
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@ -52,17 +52,24 @@
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<Reference Include="WindowsBase" />
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</ItemGroup>
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<ItemGroup>
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<Compile Include="AnotherRoom\AudioWAZ.cs" />
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<Compile Include="AnotherRoom\ImageGR1.cs" />
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<Compile Include="ApplePie\ArcARC.cs" />
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<Compile Include="ApplePie\ImageGT.cs" />
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<Compile Include="Clio\ArcPAC.cs" />
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<Compile Include="Clio\ImageEXP.cs" />
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<Compile Include="CocktailSoft\ArcPAK.cs" />
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<Compile Include="CocktailSoft\ImageWMK.cs" />
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<Compile Include="CrossNet\AudioADP.cs" />
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<Compile Include="CrossNet\ImageGRB.cs" />
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<Compile Include="Dice\ArcRLZ.cs" />
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<Compile Include="Dice\AudioKWF.cs" />
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<Compile Include="Dice\ImageRBP.cs" />
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<Compile Include="Factor\ArcRES.cs" />
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<Compile Include="Kurumi\ArcMPK.cs" />
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<Compile Include="Mink\ImageGDF.cs" />
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<Compile Include="Nabe\ImageYPF.cs" />
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<Compile Include="Nanami\ArcBMM.cs" />
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<Compile Include="Nekotaro\ArcNSC.cs" />
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<Compile Include="Nekotaro\ImageGCmp.cs" />
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<Compile Include="Properties\AssemblyInfo.cs" />
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