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Move cuetools.net codec locally.

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This commit is contained in:
Natalia Portillo
2022-12-16 18:20:23 +00:00
parent 631bbfdbd0
commit 93b833c5bc
69 changed files with 11306 additions and 28 deletions
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56
Aaru.Compression/Aaru.Compression.csproj
View File

@@ -36,8 +36,8 @@
<NoWarn>CS1591;CS1574</NoWarn>
</PropertyGroup>
<ItemGroup Condition=" '$(Configuration)' == 'Debug' ">
<InternalsVisibleTo Include="Aaru.Tests"/>
<InternalsVisibleTo Include="Aaru.Tests.Devices"/>
<InternalsVisibleTo Include="Aaru.Tests" />
<InternalsVisibleTo Include="Aaru.Tests.Devices" />
</ItemGroup>
<PropertyGroup>
<NrtRevisionFormat>$(Version)+{chash:8}</NrtRevisionFormat>
@@ -50,25 +50,25 @@
</DefaultItemExcludes>
</PropertyGroup>
<ItemGroup>
<Compile Include="ADC.cs"/>
<Compile Include="AppleRle.cs"/>
<Compile Include="BZip2.cs"/>
<Compile Include="FLAC.cs"/>
<Compile Include="LZFSE.cs"/>
<Compile Include="LZIP.cs"/>
<Compile Include="LZMA.cs"/>
<Compile Include="Native.cs"/>
<Compile Include="NonClosableStream.cs"/>
<Compile Include="TeleDiskLzh.cs"/>
<Compile Include="cuetools.net/CUETools.Codecs/*.cs"/>
<Compile Include="cuetools.net/CUETools.Codecs/CommandLine/*.cs"/>
<Compile Include="cuetools.net/CUETools.Codecs/CRC/*.cs"/>
<Compile Include="cuetools.net/CUETools.Codecs/NULL/*.cs"/>
<Compile Include="cuetools.net/CUETools.Codecs/ViewModel/*.cs"/>
<Compile Include="cuetools.net/CUETools.Codecs/WAV/*.cs"/>
<Compile Include="cuetools.net/CUETools.Codecs.Flake/*.cs"/>
<Compile Include="cuetools.net/CUETools.Codecs.Flake/Properties/*.cs"/>
<Compile Include="ZSTD.cs"/>
<Compile Include="ADC.cs" />
<Compile Include="AppleRle.cs" />
<Compile Include="BZip2.cs" />
<Compile Include="FLAC.cs" />
<Compile Include="LZFSE.cs" />
<Compile Include="LZIP.cs" />
<Compile Include="LZMA.cs" />
<Compile Include="Native.cs" />
<Compile Include="NonClosableStream.cs" />
<Compile Include="TeleDiskLzh.cs" />
<Compile Include="cuetools.net/CUETools.Codecs/*.cs" />
<Compile Include="cuetools.net/CUETools.Codecs/CommandLine/*.cs" />
<Compile Include="cuetools.net/CUETools.Codecs/CRC/*.cs" />
<Compile Include="cuetools.net/CUETools.Codecs/NULL/*.cs" />
<Compile Include="cuetools.net/CUETools.Codecs/ViewModel/*.cs" />
<Compile Include="cuetools.net/CUETools.Codecs/WAV/*.cs" />
<Compile Include="cuetools.net/CUETools.Codecs.Flake/*.cs" />
<Compile Include="cuetools.net/CUETools.Codecs.Flake/Properties/*.cs" />
<Compile Include="ZSTD.cs" />
</ItemGroup>
<ItemGroup>
<Content Include="..\LICENSE.LGPL">
@@ -76,14 +76,14 @@
</Content>
</ItemGroup>
<ItemGroup>
<PackageReference Include="Aaru.Compression.Native" Version="6.0.0-alpha8"/>
<PackageReference Include="DotNetZip" Version="1.16.0"/>
<PackageReference Include="Newtonsoft.Json" Version="13.0.1"/>
<PackageReference Include="SharpCompress" Version="0.32.2"/>
<PackageReference Include="System.Resources.Extensions" Version="7.0.0"/>
<PackageReference Include="Unclassified.NetRevisionTask" Version="0.4.3" PrivateAssets="all"/>
<PackageReference Include="Aaru.Compression.Native" Version="6.0.0-alpha8" />
<PackageReference Include="DotNetZip" Version="1.16.0" />
<PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
<PackageReference Include="SharpCompress" Version="0.32.2" />
<PackageReference Include="System.Resources.Extensions" Version="7.0.0" />
<PackageReference Include="Unclassified.NetRevisionTask" Version="0.4.3" PrivateAssets="all" />
</ItemGroup>
<ItemGroup>
<ProjectReference Include="..\Aaru.Helpers\Aaru.Helpers.csproj"/>
<ProjectReference Include="..\Aaru.Helpers\Aaru.Helpers.csproj" />
</ItemGroup>
</Project>

767
Aaru.Compression/cuetools.net/CUETools.Codecs.Flake/AudioDecoder.cs Normal file
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@@ -0,0 +1,767 @@
/**
* CUETools.Flake: pure managed FLAC audio encoder
* Copyright (c) 2009-2021 Grigory Chudov
* Based on Flake encoder, http://flake-enc.sourceforge.net/
* Copyright (c) 2006-2009 Justin Ruggles
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
namespace CUETools.Codecs.Flake
{
public class AudioDecoder: IAudioSource
{
int[] samplesBuffer;
int[] residualBuffer;
byte[] _framesBuffer;
int _framesBufferLength = 0, _framesBufferOffset = 0;
long first_frame_offset;
SeekPoint[] seek_table;
Crc8 crc8;
FlacFrame frame;
BitReader framereader;
AudioPCMConfig pcm;
uint min_block_size = 0;
uint max_block_size = 0;
uint min_frame_size = 0;
uint max_frame_size = 0;
int _samplesInBuffer, _samplesBufferOffset;
long _sampleCount = 0, _sampleOffset = 0;
bool do_crc = true;
string _path;
Stream _IO;
public bool DoCRC
{
get
{
return do_crc;
}
set
{
do_crc = value;
}
}
public int[] Samples
{
get
{
return samplesBuffer;
}
}
public AudioDecoder(DecoderSettings settings, string path, Stream IO = null)
{
m_settings = settings;
_path = path;
_IO = IO != null ? IO : new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.Read, 0x10000);
crc8 = new Crc8();
_framesBuffer = new byte[0x20000];
decode_metadata();
frame = new FlacFrame(PCM.ChannelCount);
framereader = new BitReader();
//max_frame_size = 16 + ((Flake.MAX_BLOCKSIZE * PCM.BitsPerSample * PCM.ChannelCount + 1) + 7) >> 3);
if (((int)max_frame_size * PCM.BitsPerSample * PCM.ChannelCount * 2 >> 3) > _framesBuffer.Length)
{
byte[] temp = _framesBuffer;
_framesBuffer = new byte[((int)max_frame_size * PCM.BitsPerSample * PCM.ChannelCount * 2 >> 3)];
if (_framesBufferLength > 0)
Array.Copy(temp, _framesBufferOffset, _framesBuffer, 0, _framesBufferLength);
_framesBufferOffset = 0;
}
_samplesInBuffer = 0;
if (PCM.BitsPerSample != 16 && PCM.BitsPerSample != 24)
throw new Exception("invalid flac file");
samplesBuffer = new int[FlakeConstants.MAX_BLOCKSIZE * PCM.ChannelCount];
residualBuffer = new int[FlakeConstants.MAX_BLOCKSIZE * PCM.ChannelCount];
}
public AudioDecoder(AudioPCMConfig _pcm)
{
pcm = _pcm;
crc8 = new Crc8();
samplesBuffer = new int[FlakeConstants.MAX_BLOCKSIZE * PCM.ChannelCount];
residualBuffer = new int[FlakeConstants.MAX_BLOCKSIZE * PCM.ChannelCount];
frame = new FlacFrame(PCM.ChannelCount);
framereader = new BitReader();
}
private DecoderSettings m_settings;
public IAudioDecoderSettings Settings => m_settings;
public void Close()
{
_IO.Close();
}
public TimeSpan Duration => Length < 0 ? TimeSpan.Zero : TimeSpan.FromSeconds((double)Length / PCM.SampleRate);
public long Length
{
get
{
return _sampleCount;
}
}
public long Remaining
{
get
{
return Length - Position;
}
}
public long Position
{
get
{
return _sampleOffset - _samplesInBuffer;
}
set
{
if (value > _sampleCount)
throw new Exception("seeking past end of stream");
if (value < Position || value > _sampleOffset)
{
if (seek_table != null && _IO.CanSeek)
{
int best_st = -1;
for (int st = 0; st < seek_table.Length; st++)
{
if (seek_table[st].number <= value &&
(best_st == -1 || seek_table[st].number > seek_table[best_st].number))
best_st = st;
}
if (best_st != -1)
{
_framesBufferLength = 0;
_samplesInBuffer = 0;
_samplesBufferOffset = 0;
_IO.Position = (long)seek_table[best_st].offset + first_frame_offset;
_sampleOffset = seek_table[best_st].number;
}
}
if (value < Position)
throw new Exception("cannot seek backwards without seek table");
}
while (value > _sampleOffset)
{
_samplesInBuffer = 0;
_samplesBufferOffset = 0;
fill_frames_buffer();
if (_framesBufferLength == 0)
throw new Exception("seek failed");
int bytesDecoded = DecodeFrame(_framesBuffer, _framesBufferOffset, _framesBufferLength);
_framesBufferLength -= bytesDecoded;
_framesBufferOffset += bytesDecoded;
_sampleOffset += _samplesInBuffer;
};
int diff = _samplesInBuffer - (int)(_sampleOffset - value);
_samplesInBuffer -= diff;
_samplesBufferOffset += diff;
}
}
public AudioPCMConfig PCM
{
get
{
return pcm;
}
}
public string Path
{
get
{
return _path;
}
}
unsafe void interlace(AudioBuffer buff, int offset, int count)
{
if (PCM.ChannelCount == 2)
{
fixed (int* src = &samplesBuffer[_samplesBufferOffset])
buff.Interlace(offset, src, src + FlakeConstants.MAX_BLOCKSIZE, count);
}
else
{
for (int ch = 0; ch < PCM.ChannelCount; ch++)
fixed (int* res = &buff.Samples[offset, ch], src = &samplesBuffer[_samplesBufferOffset + ch * FlakeConstants.MAX_BLOCKSIZE])
{
int* psrc = src;
for (int i = 0; i < count; i++)
res[i * PCM.ChannelCount] = *(psrc++);
}
}
}
public int Read(AudioBuffer buff, int maxLength)
{
buff.Prepare(this, maxLength);
int offset = 0;
int sampleCount = buff.Length;
while (_samplesInBuffer < sampleCount)
{
if (_samplesInBuffer > 0)
{
interlace(buff, offset, _samplesInBuffer);
sampleCount -= _samplesInBuffer;
offset += _samplesInBuffer;
_samplesInBuffer = 0;
_samplesBufferOffset = 0;
}
fill_frames_buffer();
if (_framesBufferLength == 0)
return buff.Length = offset;
int bytesDecoded = DecodeFrame(_framesBuffer, _framesBufferOffset, _framesBufferLength);
_framesBufferLength -= bytesDecoded;
_framesBufferOffset += bytesDecoded;
_samplesInBuffer -= _samplesBufferOffset; // can be set by Seek, otherwise zero
_sampleOffset += _samplesInBuffer;
}
interlace(buff, offset, sampleCount);
_samplesInBuffer -= sampleCount;
_samplesBufferOffset += sampleCount;
if (_samplesInBuffer == 0)
_samplesBufferOffset = 0;
return buff.Length = offset + sampleCount;
}
unsafe void fill_frames_buffer()
{
if (_framesBufferLength == 0)
_framesBufferOffset = 0;
else if (_framesBufferLength < _framesBuffer.Length / 2 && _framesBufferOffset >= _framesBuffer.Length / 2)
{
fixed (byte* buff = _framesBuffer)
AudioSamples.MemCpy(buff, buff + _framesBufferOffset, _framesBufferLength);
_framesBufferOffset = 0;
}
while (_framesBufferLength < _framesBuffer.Length / 2)
{
int read = _IO.Read(_framesBuffer, _framesBufferOffset + _framesBufferLength, _framesBuffer.Length - _framesBufferOffset - _framesBufferLength);
_framesBufferLength += read;
if (read == 0)
break;
}
}
unsafe void decode_frame_header(BitReader bitreader, FlacFrame frame)
{
int header_start = bitreader.Position;
if (bitreader.readbits(15) != 0x7FFC)
throw new Exception("invalid frame");
uint vbs = bitreader.readbit();
frame.bs_code0 = (int) bitreader.readbits(4);
uint sr_code0 = bitreader.readbits(4);
frame.ch_mode = (ChannelMode)bitreader.readbits(4);
uint bps_code = bitreader.readbits(3);
if (FlakeConstants.flac_bitdepths[bps_code] != PCM.BitsPerSample)
throw new Exception("unsupported bps coding");
uint t1 = bitreader.readbit(); // == 0?????
if (t1 != 0)
throw new Exception("unsupported frame coding");
frame.frame_number = (int)bitreader.read_utf8();
// custom block size
if (frame.bs_code0 == 6)
{
frame.bs_code1 = (int)bitreader.readbits(8);
frame.blocksize = frame.bs_code1 + 1;
}
else if (frame.bs_code0 == 7)
{
frame.bs_code1 = (int)bitreader.readbits(16);
frame.blocksize = frame.bs_code1 + 1;
}
else
frame.blocksize = FlakeConstants.flac_blocksizes[frame.bs_code0];
// custom sample rate
if (sr_code0 < 1 || sr_code0 > 11)
{
// sr_code0 == 12 -> sr == bitreader.readbits(8) * 1000;
// sr_code0 == 13 -> sr == bitreader.readbits(16);
// sr_code0 == 14 -> sr == bitreader.readbits(16) * 10;
throw new Exception("invalid sample rate mode");
}
int frame_channels = (int)frame.ch_mode + 1;
if (frame_channels > 11)
throw new Exception("invalid channel mode");
if (frame_channels == 2 || frame_channels > 8) // Mid/Left/Right Side Stereo
frame_channels = 2;
else
frame.ch_mode = ChannelMode.NotStereo;
if (frame_channels != PCM.ChannelCount)
throw new Exception("invalid channel mode");
// CRC-8 of frame header
byte crc = do_crc ? crc8.ComputeChecksum(bitreader.Buffer, header_start, bitreader.Position - header_start) : (byte)0;
frame.crc8 = (byte)bitreader.readbits(8);
if (do_crc && frame.crc8 != crc)
throw new Exception("header crc mismatch");
}
unsafe void decode_subframe_constant(BitReader bitreader, FlacFrame frame, int ch)
{
int obits = frame.subframes[ch].obits;
frame.subframes[ch].best.residual[0] = bitreader.readbits_signed(obits);
}
unsafe void decode_subframe_verbatim(BitReader bitreader, FlacFrame frame, int ch)
{
int obits = frame.subframes[ch].obits;
for (int i = 0; i < frame.blocksize; i++)
frame.subframes[ch].best.residual[i] = bitreader.readbits_signed(obits);
}
unsafe void decode_residual(BitReader bitreader, FlacFrame frame, int ch)
{
// rice-encoded block
// coding method
frame.subframes[ch].best.rc.coding_method = (int)bitreader.readbits(2); // ????? == 0
if (frame.subframes[ch].best.rc.coding_method != 0 && frame.subframes[ch].best.rc.coding_method != 1)
throw new Exception("unsupported residual coding");
// partition order
frame.subframes[ch].best.rc.porder = (int)bitreader.readbits(4);
if (frame.subframes[ch].best.rc.porder > 8)
throw new Exception("invalid partition order");
int psize = frame.blocksize >> frame.subframes[ch].best.rc.porder;
int res_cnt = psize - frame.subframes[ch].best.order;
int rice_len = 4 + frame.subframes[ch].best.rc.coding_method;
// residual
int j = frame.subframes[ch].best.order;
int* r = frame.subframes[ch].best.residual + j;
for (int p = 0; p < (1 << frame.subframes[ch].best.rc.porder); p++)
{
if (p == 1) res_cnt = psize;
int n = Math.Min(res_cnt, frame.blocksize - j);
int k = frame.subframes[ch].best.rc.rparams[p] = (int)bitreader.readbits(rice_len);
if (k == (1 << rice_len) - 1)
{
k = frame.subframes[ch].best.rc.esc_bps[p] = (int)bitreader.readbits(5);
for (int i = n; i > 0; i--)
*(r++) = bitreader.readbits_signed((int)k);
}
else
{
bitreader.read_rice_block(n, (int)k, r);
r += n;
}
j += n;
}
}
unsafe void decode_subframe_fixed(BitReader bitreader, FlacFrame frame, int ch)
{
// warm-up samples
int obits = frame.subframes[ch].obits;
for (int i = 0; i < frame.subframes[ch].best.order; i++)
frame.subframes[ch].best.residual[i] = bitreader.readbits_signed(obits);
// residual
decode_residual(bitreader, frame, ch);
}
unsafe void decode_subframe_lpc(BitReader bitreader, FlacFrame frame, int ch)
{
// warm-up samples
int obits = frame.subframes[ch].obits;
for (int i = 0; i < frame.subframes[ch].best.order; i++)
frame.subframes[ch].best.residual[i] = bitreader.readbits_signed(obits);
// LPC coefficients
frame.subframes[ch].best.cbits = (int)bitreader.readbits(4) + 1; // lpc_precision
if (frame.subframes[ch].best.cbits >= 16)
throw new Exception("cbits >= 16");
frame.subframes[ch].best.shift = bitreader.readbits_signed(5);
if (frame.subframes[ch].best.shift < 0)
throw new Exception("negative shift");
for (int i = 0; i < frame.subframes[ch].best.order; i++)
frame.subframes[ch].best.coefs[i] = bitreader.readbits_signed(frame.subframes[ch].best.cbits);
// residual
decode_residual(bitreader, frame, ch);
}
unsafe void decode_subframes(BitReader bitreader, FlacFrame frame)
{
fixed (int *r = residualBuffer, s = samplesBuffer)
for (int ch = 0; ch < PCM.ChannelCount; ch++)
{
// subframe header
uint t1 = bitreader.readbit(); // ?????? == 0
if (t1 != 0)
throw new Exception("unsupported subframe coding (ch == " + ch.ToString() + ")");
int type_code = (int)bitreader.readbits(6);
frame.subframes[ch].wbits = (int)bitreader.readbit();
if (frame.subframes[ch].wbits != 0)
frame.subframes[ch].wbits += (int)bitreader.read_unary();
frame.subframes[ch].obits = PCM.BitsPerSample - frame.subframes[ch].wbits;
switch (frame.ch_mode)
{
case ChannelMode.MidSide: frame.subframes[ch].obits += ch; break;
case ChannelMode.LeftSide: frame.subframes[ch].obits += ch; break;
case ChannelMode.RightSide: frame.subframes[ch].obits += 1 - ch; break;
}
frame.subframes[ch].best.type = (SubframeType)type_code;
frame.subframes[ch].best.order = 0;
if ((type_code & (uint)SubframeType.LPC) != 0)
{
frame.subframes[ch].best.order = (type_code - (int)SubframeType.LPC) + 1;
frame.subframes[ch].best.type = SubframeType.LPC;
}
else if ((type_code & (uint)SubframeType.Fixed) != 0)
{
frame.subframes[ch].best.order = (type_code - (int)SubframeType.Fixed);
frame.subframes[ch].best.type = SubframeType.Fixed;
}
frame.subframes[ch].best.residual = r + ch * FlakeConstants.MAX_BLOCKSIZE;
frame.subframes[ch].samples = s + ch * FlakeConstants.MAX_BLOCKSIZE;
// subframe
switch (frame.subframes[ch].best.type)
{
case SubframeType.Constant:
decode_subframe_constant(bitreader, frame, ch);
break;
case SubframeType.Verbatim:
decode_subframe_verbatim(bitreader, frame, ch);
break;
case SubframeType.Fixed:
decode_subframe_fixed(bitreader, frame, ch);
break;
case SubframeType.LPC:
decode_subframe_lpc(bitreader, frame, ch);
break;
default:
throw new Exception("invalid subframe type");
}
}
}
unsafe void restore_samples_fixed(FlacFrame frame, int ch)
{
FlacSubframeInfo sub = frame.subframes[ch];
AudioSamples.MemCpy(sub.samples, sub.best.residual, sub.best.order);
int* data = sub.samples + sub.best.order;
int* residual = sub.best.residual + sub.best.order;
int data_len = frame.blocksize - sub.best.order;
int s0, s1, s2;
switch (sub.best.order)
{
case 0:
AudioSamples.MemCpy(data, residual, data_len);
break;
case 1:
s1 = data[-1];
for (int i = data_len; i > 0; i--)
{
s1 += *(residual++);
*(data++) = s1;
}
//data[i] = residual[i] + data[i - 1];
break;
case 2:
s2 = data[-2];
s1 = data[-1];
for (int i = data_len; i > 0; i--)
{
s0 = *(residual++) + (s1 << 1) - s2;
*(data++) = s0;
s2 = s1;
s1 = s0;
}
//data[i] = residual[i] + data[i - 1] * 2 - data[i - 2];
break;
case 3:
for (int i = 0; i < data_len; i++)
data[i] = residual[i] + (((data[i - 1] - data[i - 2]) << 1) + (data[i - 1] - data[i - 2])) + data[i - 3];
break;
case 4:
for (int i = 0; i < data_len; i++)
data[i] = residual[i] + ((data[i - 1] + data[i - 3]) << 2) - ((data[i - 2] << 2) + (data[i - 2] << 1)) - data[i - 4];
break;
}
}
unsafe void restore_samples_lpc(FlacFrame frame, int ch)
{
FlacSubframeInfo sub = frame.subframes[ch];
ulong csum = 0;
fixed (int* coefs = sub.best.coefs)
{
for (int i = sub.best.order; i > 0; i--)
csum += (ulong)Math.Abs(coefs[i - 1]);
if ((csum << sub.obits) >= 1UL << 32)
lpc.decode_residual_long(sub.best.residual, sub.samples, frame.blocksize, sub.best.order, coefs, sub.best.shift);
else
lpc.decode_residual(sub.best.residual, sub.samples, frame.blocksize, sub.best.order, coefs, sub.best.shift);
}
}
unsafe void restore_samples(FlacFrame frame)
{
for (int ch = 0; ch < PCM.ChannelCount; ch++)
{
switch (frame.subframes[ch].best.type)
{
case SubframeType.Constant:
AudioSamples.MemSet(frame.subframes[ch].samples, frame.subframes[ch].best.residual[0], frame.blocksize);
break;
case SubframeType.Verbatim:
AudioSamples.MemCpy(frame.subframes[ch].samples, frame.subframes[ch].best.residual, frame.blocksize);
break;
case SubframeType.Fixed:
restore_samples_fixed(frame, ch);
break;
case SubframeType.LPC:
restore_samples_lpc(frame, ch);
break;
}
if (frame.subframes[ch].wbits != 0)
{
int* s = frame.subframes[ch].samples;
int x = (int) frame.subframes[ch].wbits;
for (int i = frame.blocksize; i > 0; i--)
*(s++) <<= x;
}
}
if (frame.ch_mode != ChannelMode.NotStereo)
{
int* l = frame.subframes[0].samples;
int* r = frame.subframes[1].samples;
switch (frame.ch_mode)
{
case ChannelMode.LeftRight:
break;
case ChannelMode.MidSide:
for (int i = frame.blocksize; i > 0; i--)
{
int mid = *l;
int side = *r;
mid <<= 1;
mid |= (side & 1); /* i.e. if 'side' is odd... */
*(l++) = (mid + side) >> 1;
*(r++) = (mid - side) >> 1;
}
break;
case ChannelMode.LeftSide:
for (int i = frame.blocksize; i > 0; i--)
{
int _l = *(l++), _r = *r;
*(r++) = _l - _r;
}
break;
case ChannelMode.RightSide:
for (int i = frame.blocksize; i > 0; i--)
*(l++) += *(r++);
break;
}
}
}
public unsafe int DecodeFrame(byte[] buffer, int pos, int len)
{
fixed (byte* buf = buffer)
{
framereader.Reset(buf, pos, len);
decode_frame_header(framereader, frame);
decode_subframes(framereader, frame);
framereader.flush();
ushort crc_1 = framereader.get_crc16();
ushort crc_2 = framereader.read_ushort();
if (do_crc && crc_1 != crc_2)
throw new Exception("frame crc mismatch");
restore_samples(frame);
_samplesInBuffer = frame.blocksize;
return framereader.Position - pos;
}
}
bool skip_bytes(int bytes)
{
for (int j = 0; j < bytes; j++)
if (0 == _IO.Read(_framesBuffer, 0, 1))
return false;
return true;
}
unsafe void decode_metadata()
{
byte x;
int i, id;
//bool first = true;
byte[] FLAC__STREAM_SYNC_STRING = new byte[] { (byte)'f', (byte)'L', (byte)'a', (byte)'C' };
byte[] ID3V2_TAG_ = new byte[] { (byte)'I', (byte)'D', (byte)'3' };
for (i = id = 0; i < 4; )
{
if (_IO.Read(_framesBuffer, 0, 1) == 0)
throw new Exception("FLAC stream not found");
x = _framesBuffer[0];
if (x == FLAC__STREAM_SYNC_STRING[i])
{
//first = true;
i++;
id = 0;
continue;
}
if (id < 3 && x == ID3V2_TAG_[id])
{
id++;
i = 0;
if (id == 3)
{
if (!skip_bytes(3))
throw new Exception("FLAC stream not found");
int skip = 0;
for (int j = 0; j < 4; j++)
{
if (0 == _IO.Read(_framesBuffer, 0, 1))
throw new Exception("FLAC stream not found");
skip <<= 7;
skip |= ((int)_framesBuffer[0] & 0x7f);
}
if (!skip_bytes(skip))
throw new Exception("FLAC stream not found");
}
continue;
}
id = 0;
if (x == 0xff) /* MAGIC NUMBER for the first 8 frame sync bits */
{
do
{
if (_IO.Read(_framesBuffer, 0, 1) == 0)
throw new Exception("FLAC stream not found");
x = _framesBuffer[0];
} while (x == 0xff);
if (x >> 2 == 0x3e) /* MAGIC NUMBER for the last 6 sync bits */
{
//_IO.Position -= 2;
// state = frame
throw new Exception("headerless file unsupported");
}
}
throw new Exception("FLAC stream not found");
}
do
{
fill_frames_buffer();
fixed (byte* buf = _framesBuffer)
{
BitReader bitreader = new BitReader(buf, _framesBufferOffset, _framesBufferLength - _framesBufferOffset);
bool is_last = bitreader.readbit() != 0;
MetadataType type = (MetadataType)bitreader.readbits(7);
int len = (int)bitreader.readbits(24);
if (type == MetadataType.StreamInfo)
{
const int FLAC__STREAM_METADATA_STREAMINFO_MIN_BLOCK_SIZE_LEN = 16; /* bits */
const int FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN = 16; /* bits */
const int FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN = 24; /* bits */
const int FLAC__STREAM_METADATA_STREAMINFO_MAX_FRAME_SIZE_LEN = 24; /* bits */
const int FLAC__STREAM_METADATA_STREAMINFO_SAMPLE_RATE_LEN = 20; /* bits */
const int FLAC__STREAM_METADATA_STREAMINFO_CHANNELS_LEN = 3; /* bits */
const int FLAC__STREAM_METADATA_STREAMINFO_BITS_PER_SAMPLE_LEN = 5; /* bits */
const int FLAC__STREAM_METADATA_STREAMINFO_TOTAL_SAMPLES_LEN = 36; /* bits */
const int FLAC__STREAM_METADATA_STREAMINFO_MD5SUM_LEN = 128; /* bits */
min_block_size = bitreader.readbits(FLAC__STREAM_METADATA_STREAMINFO_MIN_BLOCK_SIZE_LEN);
max_block_size = bitreader.readbits(FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN);
min_frame_size = bitreader.readbits(FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN);
max_frame_size = bitreader.readbits(FLAC__STREAM_METADATA_STREAMINFO_MAX_FRAME_SIZE_LEN);
int sample_rate = (int)bitreader.readbits(FLAC__STREAM_METADATA_STREAMINFO_SAMPLE_RATE_LEN);
int channels = 1 + (int)bitreader.readbits(FLAC__STREAM_METADATA_STREAMINFO_CHANNELS_LEN);
int bits_per_sample = 1 + (int)bitreader.readbits(FLAC__STREAM_METADATA_STREAMINFO_BITS_PER_SAMPLE_LEN);
pcm = new AudioPCMConfig(bits_per_sample, channels, sample_rate);
_sampleCount = (long)bitreader.readbits64(FLAC__STREAM_METADATA_STREAMINFO_TOTAL_SAMPLES_LEN);
bitreader.skipbits(FLAC__STREAM_METADATA_STREAMINFO_MD5SUM_LEN);
}
else if (type == MetadataType.Seektable)
{
int num_entries = len / 18;
seek_table = new SeekPoint[num_entries];
for (int e = 0; e < num_entries; e++)
{
seek_table[e].number = bitreader.read_long();
seek_table[e].offset = bitreader.read_long();
seek_table[e].framesize = (int)bitreader.read_ushort();
}
}
if (_framesBufferLength < 4 + len)
{
_IO.Position += 4 + len - _framesBufferLength;
_framesBufferLength = 0;
}
else
{
_framesBufferLength -= 4 + len;
_framesBufferOffset += 4 + len;
}
if (is_last)
break;
}
} while (true);
first_frame_offset = _IO.Position - _framesBufferLength;
}
}
}

2402
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503
Aaru.Compression/cuetools.net/CUETools.Codecs.Flake/COPYING Normal file
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@@ -0,0 +1,503 @@
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That's all there is to it!

29
Aaru.Compression/cuetools.net/CUETools.Codecs.Flake/CUETools.Codecs.Flake.csproj Normal file
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@@ -0,0 +1,29 @@
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>netstandard2.0</TargetFramework>
<Version>2.1.9.0</Version>
<AssemblyName>CUETools.Codecs.Flake</AssemblyName>
<RootNamespace>CUETools.Codecs.Flake</RootNamespace>
<Product>CUETools</Product>
<Description>A library for encoding and decoding FLAC.</Description>
<Copyright>Copyright (c) 2008-2021 Grigory Chudov</Copyright>
<Authors>Grigory Chudov</Authors>
<AllowUnsafeBlocks>true</AllowUnsafeBlocks>
<OutputPath>..\bin\$(Configuration)\plugins</OutputPath>
<RepositoryUrl>https://github.com/gchudov/cuetools.net</RepositoryUrl>
<RepositoryType>git</RepositoryType>
<Company />
</PropertyGroup>
<ItemDefinitionGroup>
<ProjectReference>
<Private>False</Private>
</ProjectReference>
</ItemDefinitionGroup>
<ItemGroup>
<ProjectReference Include="..\CUETools.Codecs\CUETools.Codecs.csproj" />
</ItemGroup>
</Project>

11
Aaru.Compression/cuetools.net/CUETools.Codecs.Flake/ChannelMode.cs Normal file
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@@ -0,0 +1,11 @@
namespace CUETools.Codecs.Flake
{
public enum ChannelMode
{
NotStereo = 0,
LeftRight = 1,
LeftSide = 8,
RightSide = 9,
MidSide = 10
}
}

36
Aaru.Compression/cuetools.net/CUETools.Codecs.Flake/DecoderSettings.cs Normal file
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@@ -0,0 +1,36 @@
using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Text;
namespace CUETools.Codecs.Flake
{
[JsonObject(MemberSerialization.OptIn)]
public class DecoderSettings : IAudioDecoderSettings
{
#region IAudioDecoderSettings implementation
[Browsable(false)]
public string Extension => "flac";
[Browsable(false)]
public string Name => "cuetools";
[Browsable(false)]
public Type DecoderType => typeof(AudioDecoder);
[Browsable(false)]
public int Priority => 2;
public IAudioDecoderSettings Clone()
{
return MemberwiseClone() as IAudioDecoderSettings;
}
#endregion
public DecoderSettings()
{
this.Init();
}
}
}

271
Aaru.Compression/cuetools.net/CUETools.Codecs.Flake/EncoderSettings.cs Normal file
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using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Text;
namespace CUETools.Codecs.Flake
{
[JsonObject(MemberSerialization.OptIn)]
public class EncoderSettings : IAudioEncoderSettings
{
#region IAudioEncoderSettings implementation
[Browsable(false)]
public string Extension => "flac";
[Browsable(false)]
public string Name => "cuetools";
[Browsable(false)]
public Type EncoderType => typeof(AudioEncoder);
[Browsable(false)]
public bool Lossless => true;
[Browsable(false)]
public int Priority => 4;
[Browsable(false)]
public string SupportedModes => this.AllowNonSubset || (this.PCM != null && this.PCM.SampleRate > 48000) ? "0 1 2 3 4 5 6 7 8 9 10 11" : "0 1 2 3 4 5 6 7 8";
[Browsable(false)]
public string DefaultMode => "5";
[Browsable(false)]
[DefaultValue("")]
[JsonProperty]
public string EncoderMode { get; set; }
[Browsable(false)]
public AudioPCMConfig PCM { get; set; }
[Browsable(false)]
public int BlockSize { get; set; }
[Browsable(false)]
[DefaultValue(4096)]
public int Padding { get; set; }
public IAudioEncoderSettings Clone()
{
return MemberwiseClone() as IAudioEncoderSettings;
}
#endregion
public EncoderSettings()
{
this.Init();
}
public bool IsSubset()
{
return (BlockSize == 0 || (BlockSize <= 16384 && (PCM.SampleRate > 48000 || BlockSize <= 4608)))
&& (PCM.SampleRate > 48000 || MaxLPCOrder <= 12)
&& MaxPartitionOrder <= 8
;
//The blocksize bits in the frame header must be 0001-1110. The blocksize must be <=16384; if the sample rate is <= 48000Hz, the blocksize must be <=4608.
//The sample rate bits in the frame header must be 0001-1110.
//The bits-per-sample bits in the frame header must be 001-111.
//If the sample rate is <= 48000Hz, the filter order in LPC subframes must be less than or equal to 12, i.e. the subframe type bits in the subframe header may not be 101100-111111.
//The Rice partition order in a Rice-coded residual section must be less than or equal to 8.
}
public void Validate()
{
if (this.GetEncoderModeIndex() < 0)
throw new Exception("unsupported encoder mode");
this.SetDefaultValuesForMode();
if (Padding < 0)
throw new Exception("unsupported padding value " + Padding.ToString());
if (BlockSize != 0 && (BlockSize < 256 || BlockSize >= FlakeConstants.MAX_BLOCKSIZE))
throw new Exception("unsupported block size " + BlockSize.ToString());
if (MinLPCOrder > MaxLPCOrder || MaxLPCOrder > lpc.MAX_LPC_ORDER)
throw new Exception("invalid MaxLPCOrder " + MaxLPCOrder.ToString());
if (MinFixedOrder < 0 || MinFixedOrder > 4)
throw new Exception("invalid MinFixedOrder " + MinFixedOrder.ToString());
if (MaxFixedOrder < 0 || MaxFixedOrder > 4)
throw new Exception("invalid MaxFixedOrder " + MaxFixedOrder.ToString());
if (MinPartitionOrder < 0)
throw new Exception("invalid MinPartitionOrder " + MinPartitionOrder.ToString());
if (MinPartitionOrder > MaxPartitionOrder || MaxPartitionOrder > 8)
throw new Exception("invalid MaxPartitionOrder " + MaxPartitionOrder.ToString());
if (PredictionType == PredictionType.None)
throw new Exception("invalid PredictionType " + PredictionType.ToString());
if (PredictionType != PredictionType.Fixed)
{
if (WindowMethod == WindowMethod.Invalid)
throw new InvalidOperationException("invalid WindowMethod " + WindowMethod.ToString());
if (WindowFunctions == WindowFunction.None)
throw new InvalidOperationException("invalid WindowFunctions " + WindowFunctions.ToString());
if (EstimationDepth > 32 || EstimationDepth < 1)
throw new InvalidOperationException("invalid EstimationDepth " + EstimationDepth.ToString());
if (MinPrecisionSearch < 0 || MinPrecisionSearch >= lpc.MAX_LPC_PRECISIONS)
throw new Exception("unsupported MinPrecisionSearch value");
if (MaxPrecisionSearch < 0 || MaxPrecisionSearch >= lpc.MAX_LPC_PRECISIONS)
throw new Exception("unsupported MaxPrecisionSearch value");
if (MaxPrecisionSearch < MinPrecisionSearch)
throw new Exception("unsupported MaxPrecisionSearch value");
}
if (!AllowNonSubset && !IsSubset())
throw new Exception("the encoding parameters specified do not conform to the FLAC Subset");
}
[DefaultValue(-1)]
[DefaultValueForMode(2, 0, 0, 0, 2, 2, 0, 0, 0, 0, 0, 0)]
[Browsable(false)]
[DisplayName("MinFixedOrder")]
[SRDescription(typeof(Properties.Resources), "MinFixedOrderDescription")]
public int MinFixedOrder { get; set; }
[DefaultValue(-1)]
[DefaultValueForMode(2, 4, 4, 4, 2, 2, 4, 4, 4, 4, 4, 4)]
[Browsable(false)]
[DisplayName("MaxFixedOrder")]
[SRDescription(typeof(Properties.Resources), "MaxFixedOrderDescription")]
public int MaxFixedOrder { get; set; }
[DefaultValue(1)]
[Browsable(false)]
[DisplayName("MinLPCOrder")]
[SRDescription(typeof(Properties.Resources), "MinLPCOrderDescription")]
public int MinLPCOrder { get; set; }
[DefaultValue(-1)]
[DefaultValueForMode(8, 8, 8, 12, 12, 12, 12, 12, 12, 32, 32, 32)]
[Browsable(false)]
[DisplayName("MaxLPCOrder")]
[SRDescription(typeof(Properties.Resources), "MaxLPCOrderDescription")]
public int MaxLPCOrder { get; set; }
[DefaultValue(0)]
[DisplayName("MinPartitionOrder")]
[Browsable(false)]
[SRDescription(typeof(Properties.Resources), "MinPartitionOrderDescription")]
public int MinPartitionOrder { get; set; }
[DefaultValue(-1)]
[DefaultValueForMode(6, 6, 6, 6, 6, 6, 6, 6, 7, 6, 6, 8)]
[DisplayName("MaxPartitionOrder")]
[Browsable(false)]
[SRDescription(typeof(Properties.Resources), "MaxPartitionOrderDescription")]
public int MaxPartitionOrder { get; set; }
[DefaultValue(false)]
[DisplayName("Verify")]
[SRDescription(typeof(Properties.Resources), "DoVerifyDescription")]
[JsonProperty]
public bool DoVerify { get; set; }
[DefaultValue(true)]
[DisplayName("MD5")]
[SRDescription(typeof(Properties.Resources), "DoMD5Description")]
[JsonProperty]
public bool DoMD5 { get; set; }
[DefaultValue(false)]
[DisplayName("Allow Non-subset")]
[SRDescription(typeof(Properties.Resources), "AllowNonSubsetDescription")]
[JsonProperty]
public bool AllowNonSubset { get; set; }
[DefaultValue(StereoMethod.Invalid)]
[DefaultValueForMode(
/* 0 */ StereoMethod.Independent,
/* 1 */ StereoMethod.EstimateFixed,
/* 2 */ StereoMethod.Estimate,
/* 3 */ StereoMethod.Estimate,
/* 4 */ StereoMethod.Evaluate,
/* 5 */ StereoMethod.Evaluate,
/* 6 */ StereoMethod.Evaluate,
/* 7 */ StereoMethod.Evaluate,
/* 8 */ StereoMethod.Evaluate,
/* 9 */ StereoMethod.Evaluate,
/* 10 */ StereoMethod.Evaluate,
/* 11 */ StereoMethod.Evaluate)]
[Browsable(false)]
public StereoMethod StereoMethod { get; set; }
[DefaultValue(PredictionType.None)]
[DefaultValueForMode(
/* 0 */ PredictionType.Fixed,
/* 1 */ PredictionType.Fixed,
/* 2 */ PredictionType.Levinson,
/* 3 */ PredictionType.Levinson,
/* 4 */ PredictionType.Search,
/* 5 */ PredictionType.Search,
/* 6 */ PredictionType.Search,
/* 7 */ PredictionType.Search,
/* 8 */ PredictionType.Search,
/* 9 */ PredictionType.Levinson,
/* 10 */ PredictionType.Search,
/* 11 */ PredictionType.Search)]
[Browsable(false)]
public PredictionType PredictionType { get; set; }
[DefaultValue(WindowMethod.Invalid)]
[DefaultValueForMode(
/* 0 */ WindowMethod.Invalid,
/* 1 */ WindowMethod.Invalid,
/* 2 */ WindowMethod.Estimate,
/* 3 */ WindowMethod.Estimate,
/* 4 */ WindowMethod.Estimate,
/* 5 */ WindowMethod.EvaluateN,
/* 6 */ WindowMethod.EvaluateN,
/* 7 */ WindowMethod.EvaluateN,
/* 8 */ WindowMethod.EvaluateN,
/* 9 */ WindowMethod.EvaluateN,
/* 10 */ WindowMethod.EvaluateN,
/* 11 */ WindowMethod.EvaluateN)]
[Browsable(false)]
public WindowMethod WindowMethod { get; set; }
[DefaultValue(WindowFunction.None)]
[DefaultValueForMode(
/* 0 */ WindowFunction.None,
/* 1 */ WindowFunction.None,
/* 2 */ WindowFunction.Tukey3,
/* 3 */ WindowFunction.Tukey4,
/* 4 */ WindowFunction.Tukey4,
/* 5 */ WindowFunction.Tukey4 | WindowFunction.Tukey3,
/* 6 */ WindowFunction.Tukey4 | WindowFunction.Tukey3 | WindowFunction.Tukey,
/* 7 */ WindowFunction.Tukey4 | WindowFunction.Tukey3 | WindowFunction.Tukey2 | WindowFunction.Tukey,
/* 8 */ WindowFunction.Tukey4 | WindowFunction.Tukey3 | WindowFunction.Tukey2 | WindowFunction.Tukey,
/* 9 */ WindowFunction.Tukey3 | WindowFunction.Tukey2 | WindowFunction.Tukey,
/* 10 */ WindowFunction.Tukey3 | WindowFunction.Tukey2 | WindowFunction.Tukey,
/* 11 */ WindowFunction.Tukey3 | WindowFunction.Tukey2 | WindowFunction.Tukey)]
[Browsable(false)]
[DisplayName("WindowFunctions")]
[SRDescription(typeof(Properties.Resources), "WindowFunctionsDescription")]
public WindowFunction WindowFunctions { get; set; }
[DefaultValue(0)]
[DefaultValueForMode(0, 0, 1, 1, 1, 1, 1, 1, 3, 1, 1, 5)]
[Browsable(false)]
public int EstimationDepth { get; set; }
[DefaultValue(-1)]
[DefaultValueForMode(1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 0, 1)]
[Browsable(false)]
public int MinPrecisionSearch { get; set; }
[DefaultValue(-1)]
[DefaultValueForMode(1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1)]
[Browsable(false)]
public int MaxPrecisionSearch { get; set; }
[DefaultValue(0)]
[Browsable(false)]
public int TukeyParts { get; set; }
[DefaultValue(1.0)]
[Browsable(false)]
public double TukeyOverlap { get; set; }
[DefaultValue(1.0)]
[Browsable(false)]
public double TukeyP { get; set; }
[Browsable(false)]
public string[] Tags { get; set; }
}
}

96
Aaru.Compression/cuetools.net/CUETools.Codecs.Flake/FlacFrame.cs Normal file
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namespace CUETools.Codecs.Flake
{
unsafe public class FlacFrame
{
public int blocksize;
public int bs_code0, bs_code1;
public ChannelMode ch_mode;
//public int ch_order0, ch_order1;
public byte crc8;
public FlacSubframeInfo[] subframes;
public int frame_number;
public FlacSubframe current;
public float* window_buffer;
public int nSeg = 0;
public BitWriter writer = null;
public int writer_offset = 0;
public FlacFrame(int subframes_count)
{
subframes = new FlacSubframeInfo[subframes_count];
for (int ch = 0; ch < subframes_count; ch++)
subframes[ch] = new FlacSubframeInfo();
current = new FlacSubframe();
}
public void InitSize(int bs, bool vbs)
{
blocksize = bs;
int i = 15;
if (!vbs)
{
for (i = 0; i < 15; i++)
{
if (bs == FlakeConstants.flac_blocksizes[i])
{
bs_code0 = i;
bs_code1 = -1;
break;
}
}
}
if (i == 15)
{
if (blocksize <= 256)
{
bs_code0 = 6;
bs_code1 = blocksize - 1;
}
else
{
bs_code0 = 7;
bs_code1 = blocksize - 1;
}
}
}
public void ChooseBestSubframe(int ch)
{
if (current.size >= subframes[ch].best.size)
return;
FlacSubframe tmp = subframes[ch].best;
subframes[ch].best = current;
current = tmp;
}
public void SwapSubframes(int ch1, int ch2)
{
FlacSubframeInfo tmp = subframes[ch1];
subframes[ch1] = subframes[ch2];
subframes[ch2] = tmp;
}
/// <summary>
/// Swap subframes according to channel mode.
/// It is assumed that we have 4 subframes,
/// 0 is right, 1 is left, 2 is middle, 3 is difference
/// </summary>
public void ChooseSubframes()
{
switch (ch_mode)
{
case ChannelMode.MidSide:
SwapSubframes(0, 2);
SwapSubframes(1, 3);
break;
case ChannelMode.RightSide:
SwapSubframes(0, 3);
break;
case ChannelMode.LeftSide:
SwapSubframes(1, 3);
break;
}
}
}
}

21
Aaru.Compression/cuetools.net/CUETools.Codecs.Flake/FlacSubframe.cs Normal file
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namespace CUETools.Codecs.Flake
{
unsafe public class FlacSubframe
{
public FlacSubframe()
{
rc = new RiceContext();
coefs = new int[lpc.MAX_LPC_ORDER];
}
public SubframeType type;
public int order;
public int* residual;
public RiceContext rc;
public uint size;
public int cbits;
public int shift;
public int[] coefs;
public int window;
};
}

45
Aaru.Compression/cuetools.net/CUETools.Codecs.Flake/FlacSubframeInfo.cs Normal file
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using System;
namespace CUETools.Codecs.Flake
{
unsafe public class FlacSubframeInfo
{
public FlacSubframeInfo()
{
best = new FlacSubframe();
sf = new LpcSubframeInfo();
best_fixed = new ulong[5];
lpc_ctx = new LpcContext[lpc.MAX_LPC_WINDOWS];
for (int i = 0; i < lpc.MAX_LPC_WINDOWS; i++)
lpc_ctx[i] = new LpcContext();
}
public void Init(int* s, int* r, int bps, int w)
{
if (w > bps)
throw new Exception("internal error");
samples = s;
obits = bps - w;
wbits = w;
for (int o = 0; o <= 4; o++)
best_fixed[o] = 0;
best.residual = r;
best.type = SubframeType.Verbatim;
best.size = AudioSamples.UINT32_MAX;
sf.Reset();
for (int iWindow = 0; iWindow < lpc.MAX_LPC_WINDOWS; iWindow++)
lpc_ctx[iWindow].Reset();
//sf.obits = obits;
done_fixed = 0;
}
public FlacSubframe best;
public int obits;
public int wbits;
public int* samples;
public uint done_fixed;
public ulong[] best_fixed;
public LpcContext[] lpc_ctx;
public LpcSubframeInfo sf;
};
}

74
Aaru.Compression/cuetools.net/CUETools.Codecs.Flake/Flake.cs Normal file
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/**
* CUETools.Flake: pure managed FLAC audio encoder
* Copyright (c) 2009-2021 Grigory Chudov
* Based on Flake encoder, http://flake-enc.sourceforge.net/
* Copyright (c) 2006-2009 Justin Ruggles
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
using System;
namespace CUETools.Codecs.Flake
{
public class FlakeConstants
{
public const int MAX_BLOCKSIZE = 65535;
public const int MAX_RICE_PARAM = 14;
public const int MAX_PARTITION_ORDER = 8;
public const int MAX_PARTITIONS = 1 << MAX_PARTITION_ORDER;
public const int FLAC__STREAM_METADATA_SEEKPOINT_SAMPLE_NUMBER_LEN = 64; /* bits */
public const int FLAC__STREAM_METADATA_SEEKPOINT_STREAM_OFFSET_LEN = 64; /* bits */
public const int FLAC__STREAM_METADATA_SEEKPOINT_FRAME_SAMPLES_LEN = 16; /* bits */
public static readonly int[] flac_samplerates = new int[16] {
0, 88200, 176400, 192000,
8000, 16000, 22050, 24000, 32000, 44100, 48000, 96000,
0, 0, 0, 0
};
//1100 : get 8 bit sample rate (in kHz) from end of header
//1101 : get 16 bit sample rate (in Hz) from end of header
//1110 : get 16 bit sample rate (in tens of Hz) from end of header
public static readonly int[] flac_blocksizes = new int[15] { 0, 192, 576, 1152, 2304, 4608, 0, 0, 256, 512, 1024, 2048, 4096, 8192, 16384 };
//0110 : get 8 bit (blocksize-1) from end of header
//0111 : get 16 bit (blocksize-1) from end of header
public static readonly int[] flac_bitdepths = new int[8] { 0, 8, 12, 0, 16, 20, 24, 0 };
public static PredictionType LookupPredictionType(string name)
{
return (PredictionType)(Enum.Parse(typeof(PredictionType), name, true));
}
public static StereoMethod LookupStereoMethod(string name)
{
return (StereoMethod)(Enum.Parse(typeof(StereoMethod), name, true));
}
public static WindowMethod LookupWindowMethod(string name)
{
return (WindowMethod)(Enum.Parse(typeof(WindowMethod), name, true));
}
public static OrderMethod LookupOrderMethod(string name)
{
return (OrderMethod)(Enum.Parse(typeof(OrderMethod), name, true));
}
public static WindowFunction LookupWindowFunction(string name)
{
return (WindowFunction)(Enum.Parse(typeof(WindowFunction), name, true));
}
}
}

45
Aaru.Compression/cuetools.net/CUETools.Codecs.Flake/MetadataType.cs Normal file
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namespace CUETools.Codecs.Flake
{
public enum MetadataType
{
/// <summary>
/// <A HREF="../format.html#metadata_block_streaminfo">STREAMINFO</A> block
/// </summary>
StreamInfo = 0,
/// <summary>
/// <A HREF="../format.html#metadata_block_padding">PADDING</A> block
/// </summary>
Padding = 1,
/// <summary>
/// <A HREF="../format.html#metadata_block_application">APPLICATION</A> block
/// </summary>
Application = 2,
/// <summary>
/// <A HREF="../format.html#metadata_block_seektable">SEEKTABLE</A> block
/// </summary>
Seektable = 3,
/// <summary>
/// <A HREF="../format.html#metadata_block_vorbis_comment">VORBISCOMMENT</A> block (a.k.a. FLAC tags)
/// </summary>
VorbisComment = 4,
/// <summary>
/// <A HREF="../format.html#metadata_block_cuesheet">CUESHEET</A> block
/// </summary>
CUESheet = 5,
/// <summary>
/// <A HREF="../format.html#metadata_block_picture">PICTURE</A> block
/// </summary>
Picture = 6,
/// <summary>
/// marker to denote beginning of undefined type range; this number will increase as new metadata types are added
/// </summary>
Undefined = 7
}
}

10
Aaru.Compression/cuetools.net/CUETools.Codecs.Flake/OrderMethod.cs Normal file
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namespace CUETools.Codecs.Flake
{
public enum OrderMethod
{
/// <summary>
/// Select orders based on Akaike's criteria
/// </summary>
Akaike = 0
}
}

25
Aaru.Compression/cuetools.net/CUETools.Codecs.Flake/PredictionType.cs Normal file
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namespace CUETools.Codecs.Flake
{
/// <summary>
/// Type of linear prediction
/// </summary>
public enum PredictionType
{
/// <summary>
/// Verbatim
/// </summary>
None = 0,
/// <summary>
/// Fixed prediction only
/// </summary>
Fixed = 1,
/// <summary>
/// Levinson-Durbin recursion
/// </summary>
Levinson = 2,
/// <summary>
/// Exhaustive search
/// </summary>
Search = 3
}
}

108
Aaru.Compression/cuetools.net/CUETools.Codecs.Flake/Properties/Resources.Designer.cs generated Normal file
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//------------------------------------------------------------------------------
// <auto-generated>
// This code was generated by a tool.
// Runtime Version:4.0.30319.18033
//
// Changes to this file may cause incorrect behavior and will be lost if
// the code is regenerated.
// </auto-generated>
//------------------------------------------------------------------------------
namespace CUETools.Codecs.Flake.Properties {
using System;
/// <summary>
/// A strongly-typed resource class, for looking up localized strings, etc.
/// </summary>
// This class was auto-generated by the StronglyTypedResourceBuilder
// class via a tool like ResGen or Visual Studio.
// To add or remove a member, edit your .ResX file then rerun ResGen
// with the /str option, or rebuild your VS project.
[global::System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "4.0.0.0")]
[global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
[global::System.Runtime.CompilerServices.CompilerGeneratedAttribute()]
internal class Resources {
private static global::System.Resources.ResourceManager resourceMan;
private static global::System.Globalization.CultureInfo resourceCulture;
[global::System.Diagnostics.CodeAnalysis.SuppressMessageAttribute("Microsoft.Performance", "CA1811:AvoidUncalledPrivateCode")]
internal Resources() {
}
/// <summary>
/// Returns the cached ResourceManager instance used by this class.
/// </summary>
[global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
internal static global::System.Resources.ResourceManager ResourceManager {
get {
if (object.ReferenceEquals(resourceMan, null)) {
global::System.Resources.ResourceManager temp = new global::System.Resources.ResourceManager("CUETools.Codecs.Flake.Properties.Resources", typeof(Resources).Assembly);
resourceMan = temp;
}
return resourceMan;
}
}
/// <summary>
/// Overrides the current thread's CurrentUICulture property for all
/// resource lookups using this strongly typed resource class.
/// </summary>
[global::System.ComponentModel.EditorBrowsableAttribute(global::System.ComponentModel.EditorBrowsableState.Advanced)]
internal static global::System.Globalization.CultureInfo Culture {
get {
return resourceCulture;
}
set {
resourceCulture = value;
}
}
/// <summary>
/// Looks up a localized string similar to Allow non-subset modes, which allow for greater compression, but are less compatible.
/// </summary>
internal static string AllowNonSubsetDescription {
get {
return ResourceManager.GetString("AllowNonSubsetDescription", resourceCulture);
}
}
/// <summary>
/// Looks up a localized string similar to Calculate MD5 hash for audio stream.
/// </summary>
internal static string DoMD5Description {
get {
return ResourceManager.GetString("DoMD5Description", resourceCulture);
}
}
/// <summary>
/// Looks up a localized string similar to Decode each frame and compare with original.
/// </summary>
internal static string DoVerifyDescription {
get {
return ResourceManager.GetString("DoVerifyDescription", resourceCulture);
}
}
/// <summary>
/// Looks up a localized string similar to Samples written differs from the expected sample count.
/// </summary>
internal static string ExceptionSampleCount {
get {
return ResourceManager.GetString("ExceptionSampleCount", resourceCulture);
}
}
/// <summary>
/// Looks up a localized string similar to Validation failed.
/// </summary>
internal static string ExceptionValidationFailed {
get {
return ResourceManager.GetString("ExceptionValidationFailed", resourceCulture);
}
}
}
}

135
Aaru.Compression/cuetools.net/CUETools.Codecs.Flake/Properties/Resources.de-DE.resx Normal file
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<?xml version="1.0" encoding="utf-8"?>
<root>
<!--
Microsoft ResX Schema
Version 2.0
The primary goals of this format is to allow a simple XML format
that is mostly human readable. The generation and parsing of the
various data types are done through the TypeConverter classes
associated with the data types.
Example:
... ado.net/XML headers & schema ...
<resheader name="resmimetype">text/microsoft-resx</resheader>
<resheader name="version">2.0</resheader>
<resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
<resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
<data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
<data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
<data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
<value>[base64 mime encoded serialized .NET Framework object]</value>
</data>
<data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
<value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
<comment>This is a comment</comment>
</data>
There are any number of "resheader" rows that contain simple
name/value pairs.
Each data row contains a name, and value. The row also contains a
type or mimetype. Type corresponds to a .NET class that support
text/value conversion through the TypeConverter architecture.
Classes that don't support this are serialized and stored with the
mimetype set.
The mimetype is used for serialized objects, and tells the
ResXResourceReader how to depersist the object. This is currently not
extensible. For a given mimetype the value must be set accordingly:
Note - application/x-microsoft.net.object.binary.base64 is the format
that the ResXResourceWriter will generate, however the reader can
read any of the formats listed below.
mimetype: application/x-microsoft.net.object.binary.base64
value : The object must be serialized with
: System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
: and then encoded with base64 encoding.
mimetype: application/x-microsoft.net.object.soap.base64
value : The object must be serialized with
: System.Runtime.Serialization.Formatters.Soap.SoapFormatter
: and then encoded with base64 encoding.
mimetype: application/x-microsoft.net.object.bytearray.base64
value : The object must be serialized into a byte array
: using a System.ComponentModel.TypeConverter
: and then encoded with base64 encoding.
-->
<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
<xsd:element name="root" msdata:IsDataSet="true">
<xsd:complexType>
<xsd:choice maxOccurs="unbounded">
<xsd:element name="metadata">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="value" type="xsd:string" minOccurs="0" />
</xsd:sequence>
<xsd:attribute name="name" use="required" type="xsd:string" />
<xsd:attribute name="type" type="xsd:string" />
<xsd:attribute name="mimetype" type="xsd:string" />
<xsd:attribute ref="xml:space" />
</xsd:complexType>
</xsd:element>
<xsd:element name="assembly">
<xsd:complexType>
<xsd:attribute name="alias" type="xsd:string" />
<xsd:attribute name="name" type="xsd:string" />
</xsd:complexType>
</xsd:element>
<xsd:element name="data">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
<xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
</xsd:sequence>
<xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
<xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
<xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
<xsd:attribute ref="xml:space" />
</xsd:complexType>
</xsd:element>
<xsd:element name="resheader">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
</xsd:sequence>
<xsd:attribute name="name" type="xsd:string" use="required" />
</xsd:complexType>
</xsd:element>
</xsd:choice>
</xsd:complexType>
</xsd:element>
</xsd:schema>
<resheader name="resmimetype">
<value>text/microsoft-resx</value>
</resheader>
<resheader name="version">
<value>2.0</value>
</resheader>
<resheader name="reader">
<value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
</resheader>
<resheader name="writer">
<value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
</resheader>
<data name="AllowNonSubsetDescription" xml:space="preserve">
<value>Non-subset Modi erlauben, die eine höhere Kompression ermöglichen, allerdings weniger kompatibel sind</value>
</data>
<data name="DoMD5Description" xml:space="preserve">
<value>MD5-Prüfsumme für Audiodaten berechnen</value>
</data>
<data name="DoVerifyDescription" xml:space="preserve">
<value>Jeden Frame dekodieren und mit dem Original vergleichen</value>
</data>
<data name="ExceptionSampleCount" xml:space="preserve">
<value>Die geschriebenen Samples unterscheiden sich von der erwarteten Anzahl</value>
</data>
<data name="ExceptionValidationFailed" xml:space="preserve">
<value>Validierung fehlgeschlagen</value>
</data>
</root>

135
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<?xml version="1.0" encoding="utf-8"?>
<root>
<!--
Microsoft ResX Schema
Version 2.0
The primary goals of this format is to allow a simple XML format
that is mostly human readable. The generation and parsing of the
various data types are done through the TypeConverter classes
associated with the data types.
Example:
... ado.net/XML headers & schema ...
<resheader name="resmimetype">text/microsoft-resx</resheader>
<resheader name="version">2.0</resheader>
<resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
<resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
<data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
<data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
<data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
<value>[base64 mime encoded serialized .NET Framework object]</value>
</data>
<data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
<value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
<comment>This is a comment</comment>
</data>
There are any number of "resheader" rows that contain simple
name/value pairs.
Each data row contains a name, and value. The row also contains a
type or mimetype. Type corresponds to a .NET class that support
text/value conversion through the TypeConverter architecture.
Classes that don't support this are serialized and stored with the
mimetype set.
The mimetype is used for serialized objects, and tells the
ResXResourceReader how to depersist the object. This is currently not
extensible. For a given mimetype the value must be set accordingly:
Note - application/x-microsoft.net.object.binary.base64 is the format
that the ResXResourceWriter will generate, however the reader can
read any of the formats listed below.
mimetype: application/x-microsoft.net.object.binary.base64
value : The object must be serialized with
: System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
: and then encoded with base64 encoding.
mimetype: application/x-microsoft.net.object.soap.base64
value : The object must be serialized with
: System.Runtime.Serialization.Formatters.Soap.SoapFormatter
: and then encoded with base64 encoding.
mimetype: application/x-microsoft.net.object.bytearray.base64
value : The object must be serialized into a byte array
: using a System.ComponentModel.TypeConverter
: and then encoded with base64 encoding.
-->
<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
<xsd:element name="root" msdata:IsDataSet="true">
<xsd:complexType>
<xsd:choice maxOccurs="unbounded">
<xsd:element name="metadata">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="value" type="xsd:string" minOccurs="0" />
</xsd:sequence>
<xsd:attribute name="name" use="required" type="xsd:string" />
<xsd:attribute name="type" type="xsd:string" />
<xsd:attribute name="mimetype" type="xsd:string" />
<xsd:attribute ref="xml:space" />
</xsd:complexType>
</xsd:element>
<xsd:element name="assembly">
<xsd:complexType>
<xsd:attribute name="alias" type="xsd:string" />
<xsd:attribute name="name" type="xsd:string" />
</xsd:complexType>
</xsd:element>
<xsd:element name="data">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
<xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
</xsd:sequence>
<xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
<xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
<xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
<xsd:attribute ref="xml:space" />
</xsd:complexType>
</xsd:element>
<xsd:element name="resheader">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
</xsd:sequence>
<xsd:attribute name="name" type="xsd:string" use="required" />
</xsd:complexType>
</xsd:element>
</xsd:choice>
</xsd:complexType>
</xsd:element>
</xsd:schema>
<resheader name="resmimetype">
<value>text/microsoft-resx</value>
</resheader>
<resheader name="version">
<value>2.0</value>
</resheader>
<resheader name="reader">
<value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
</resheader>
<resheader name="writer">
<value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
</resheader>
<data name="AllowNonSubsetDescription" xml:space="preserve">
<value>Allow non-subset modes, which allow for greater compression, but are less compatible</value>
</data>
<data name="DoMD5Description" xml:space="preserve">
<value>Calculate MD5 hash for audio stream</value>
</data>
<data name="DoVerifyDescription" xml:space="preserve">
<value>Decode each frame and compare with original</value>
</data>
<data name="ExceptionSampleCount" xml:space="preserve">
<value>Samples written differs from the expected sample count</value>
</data>
<data name="ExceptionValidationFailed" xml:space="preserve">
<value>Validation failed</value>
</data>
</root>

136
Aaru.Compression/cuetools.net/CUETools.Codecs.Flake/Properties/Resources.ru-RU.resx Normal file
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<?xml version="1.0" encoding="utf-8"?>
<root>
<!--
Microsoft ResX Schema
Version 2.0
The primary goals of this format is to allow a simple XML format
that is mostly human readable. The generation and parsing of the
various data types are done through the TypeConverter classes
associated with the data types.
Example:
... ado.net/XML headers & schema ...
<resheader name="resmimetype">text/microsoft-resx</resheader>
<resheader name="version">2.0</resheader>
<resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
<resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
<data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
<data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
<data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
<value>[base64 mime encoded serialized .NET Framework object]</value>
</data>
<data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
<value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
<comment>This is a comment</comment>
</data>
There are any number of "resheader" rows that contain simple
name/value pairs.
Each data row contains a name, and value. The row also contains a
type or mimetype. Type corresponds to a .NET class that support
text/value conversion through the TypeConverter architecture.
Classes that don't support this are serialized and stored with the
mimetype set.
The mimetype is used for serialized objects, and tells the
ResXResourceReader how to depersist the object. This is currently not
extensible. For a given mimetype the value must be set accordingly:
Note - application/x-microsoft.net.object.binary.base64 is the format
that the ResXResourceWriter will generate, however the reader can
read any of the formats listed below.
mimetype: application/x-microsoft.net.object.binary.base64
value : The object must be serialized with
: System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
: and then encoded with base64 encoding.
mimetype: application/x-microsoft.net.object.soap.base64
value : The object must be serialized with
: System.Runtime.Serialization.Formatters.Soap.SoapFormatter
: and then encoded with base64 encoding.
mimetype: application/x-microsoft.net.object.bytearray.base64
value : The object must be serialized into a byte array
: using a System.ComponentModel.TypeConverter
: and then encoded with base64 encoding.
-->
<xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
<xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
<xsd:element name="root" msdata:IsDataSet="true">
<xsd:complexType>
<xsd:choice maxOccurs="unbounded">
<xsd:element name="metadata">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="value" type="xsd:string" minOccurs="0" />
</xsd:sequence>
<xsd:attribute name="name" use="required" type="xsd:string" />
<xsd:attribute name="type" type="xsd:string" />
<xsd:attribute name="mimetype" type="xsd:string" />
<xsd:attribute ref="xml:space" />
</xsd:complexType>
</xsd:element>
<xsd:element name="assembly">
<xsd:complexType>
<xsd:attribute name="alias" type="xsd:string" />
<xsd:attribute name="name" type="xsd:string" />
</xsd:complexType>
</xsd:element>
<xsd:element name="data">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
<xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
</xsd:sequence>
<xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
<xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
<xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
<xsd:attribute ref="xml:space" />
</xsd:complexType>
</xsd:element>
<xsd:element name="resheader">
<xsd:complexType>
<xsd:sequence>
<xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
</xsd:sequence>
<xsd:attribute name="name" type="xsd:string" use="required" />
</xsd:complexType>
</xsd:element>
</xsd:choice>
</xsd:complexType>
</xsd:element>
</xsd:schema>
<resheader name="resmimetype">
<value>text/microsoft-resx</value>
</resheader>
<resheader name="version">
<value>2.0</value>
</resheader>
<resheader name="reader">
<value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
</resheader>
<resheader name="writer">
<value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
</resheader>
<data name="DoMD5Description" xml:space="preserve">
<value>Вычислять MD5-хеш аудиопотока</value>
</data>
<data name="DoVerifyDescription" xml:space="preserve">
<value>Декодировать каждый кадр и сравнивать с оригиналом</value>
</data>
<data name="ExceptionSampleCount" xml:space="preserve">
<value>Количество записанных сэмплов отличается от ожидаемого</value>
</data>
<data name="ExceptionValidationFailed" xml:space="preserve">
<value>Ошибка верификации</value>
</data>
<data name="AllowNonSubsetDescription" xml:space="preserve">
<value>Разрешить non-subset режимы допускающие большее сжатие,
но меньшую совместимость с декодерами</value>
</data>
</root>

30
Aaru.Compression/cuetools.net/CUETools.Codecs.Flake/RiceContext.cs Normal file
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namespace CUETools.Codecs.Flake
{
unsafe public class RiceContext
{
public RiceContext()
{
rparams = new int[FlakeConstants.MAX_PARTITIONS];
esc_bps = new int[FlakeConstants.MAX_PARTITIONS];
}
/// <summary>
/// partition order
/// </summary>
public int porder;
/// <summary>
/// coding method: rice parameters use 4 bits for coding_method 0 and 5 bits for coding_method 1
/// </summary>
public int coding_method;
/// <summary>
/// Rice parameters
/// </summary>
public int[] rparams;
/// <summary>
/// bps if using escape code
/// </summary>
public int[] esc_bps;
};
}

9
Aaru.Compression/cuetools.net/CUETools.Codecs.Flake/SeekPoint.cs Normal file
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namespace CUETools.Codecs.Flake
{
public struct SeekPoint
{
public long number;
public long offset;
public int framesize;
}
}

15
Aaru.Compression/cuetools.net/CUETools.Codecs.Flake/StereoMethod.cs Normal file
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namespace CUETools.Codecs.Flake
{
public enum StereoMethod
{
Invalid,
Independent,
Estimate,
Evaluate,
Search,
EstimateX,
EvaluateX,
EstimateFixed,
}
}

10
Aaru.Compression/cuetools.net/CUETools.Codecs.Flake/SubframeType.cs Normal file
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namespace CUETools.Codecs.Flake
{
public enum SubframeType
{
Constant = 0,
Verbatim = 1,
Fixed = 8,
LPC = 32
}
}

27
Aaru.Compression/cuetools.net/CUETools.Codecs.Flake/WindowFunction.cs Normal file
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namespace CUETools.Codecs.Flake
{
public enum WindowFunction
{
None = 0,
Welch = 1,
Tukey = 2,
Hann = 4,
Flattop = 8,
Bartlett = 16,
Tukey2 = 32,
Tukey3 = 64,
Tukey4 = (1 << 7),
Tukey2A = (1 << 9),
Tukey2B = (1 << 10),
Tukey3A = (1 << 11),
Tukey3B = (1 << 12),
Tukey4A = (1 << 13),
Tukey4B = (1 << 14),
Tukey1A = (1 << 15),
Tukey1B = (1 << 16),
Tukey1X = (1 << 17),
Tukey2X = (1 << 18),
Tukey3X = (1 << 19),
Tukey4X = (1 << 20),
}
}

18
Aaru.Compression/cuetools.net/CUETools.Codecs.Flake/WindowMethod.cs Normal file
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namespace CUETools.Codecs.Flake
{
public enum WindowMethod
{
Invalid,
Evaluate,
Search,
Estimate,
Estimate2,
Estimate3,
EstimateN,
Evaluate2,
Evaluate2N,
Evaluate3,
Evaluate3N,
EvaluateN,
}
}

484
Aaru.Compression/cuetools.net/CUETools.Codecs/AudioBuffer.cs Normal file
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using System;
namespace CUETools.Codecs
{
public class AudioBuffer
{
#region Static Methods
public static unsafe void FLACSamplesToBytes_16(int[,] inSamples, int inSampleOffset,
byte* outSamples, int sampleCount, int channelCount)
{
int loopCount = sampleCount * channelCount;
if (inSamples.GetLength(0) - inSampleOffset < sampleCount)
throw new IndexOutOfRangeException();
fixed (int* pInSamplesFixed = &inSamples[inSampleOffset, 0])
{
int* pInSamples = pInSamplesFixed;
short* pOutSamples = (short*)outSamples;
for (int i = 0; i < loopCount; i++)
pOutSamples[i] = (short)pInSamples[i];
//*(pOutSamples++) = (short)*(pInSamples++);
}
}
public static unsafe void FLACSamplesToBytes_16(int[,] inSamples, int inSampleOffset,
byte[] outSamples, int outByteOffset, int sampleCount, int channelCount)
{
int loopCount = sampleCount * channelCount;
if ((inSamples.GetLength(0) - inSampleOffset < sampleCount) ||
(outSamples.Length - outByteOffset < loopCount * 2))
{
throw new IndexOutOfRangeException();
}
fixed (byte* pOutSamplesFixed = &outSamples[outByteOffset])
FLACSamplesToBytes_16(inSamples, inSampleOffset, pOutSamplesFixed, sampleCount, channelCount);
}
public static unsafe void FLACSamplesToBytes_24(int[,] inSamples, int inSampleOffset,
byte[] outSamples, int outByteOffset, int sampleCount, int channelCount, int wastedBits)
{
int loopCount = sampleCount * channelCount;
if ((inSamples.GetLength(0) - inSampleOffset < sampleCount) ||
(outSamples.Length - outByteOffset < loopCount * 3))
{
throw new IndexOutOfRangeException();
}
fixed (int* pInSamplesFixed = &inSamples[inSampleOffset, 0])
{
fixed (byte* pOutSamplesFixed = &outSamples[outByteOffset])
{
int* pInSamples = pInSamplesFixed;
byte* pOutSamples = pOutSamplesFixed;
for (int i = 0; i < loopCount; i++)
{
uint sample_out = (uint)*(pInSamples++) << wastedBits;
*(pOutSamples++) = (byte)(sample_out & 0xFF);
sample_out >>= 8;
*(pOutSamples++) = (byte)(sample_out & 0xFF);
sample_out >>= 8;
*(pOutSamples++) = (byte)(sample_out & 0xFF);
}
}
}
}
public static unsafe void FloatToBytes_16(float[,] inSamples, int inSampleOffset,
byte[] outSamples, int outByteOffset, int sampleCount, int channelCount)
{
int loopCount = sampleCount * channelCount;
if ((inSamples.GetLength(0) - inSampleOffset < sampleCount) ||
(outSamples.Length - outByteOffset < loopCount * 2))
{
throw new IndexOutOfRangeException();
}
fixed (float* pInSamplesFixed = &inSamples[inSampleOffset, 0])
{
fixed (byte* pOutSamplesFixed = &outSamples[outByteOffset])
{
float* pInSamples = pInSamplesFixed;
short* pOutSamples = (short*)pOutSamplesFixed;
for (int i = 0; i < loopCount; i++)
{
*(pOutSamples++) = (short)(32758 * (*(pInSamples++)));
}
}
}
}
public static unsafe void FloatToBytes(float[,] inSamples, int inSampleOffset,
byte[] outSamples, int outByteOffset, int sampleCount, int channelCount, int bitsPerSample)
{
if (bitsPerSample == 16)
FloatToBytes_16(inSamples, inSampleOffset, outSamples, outByteOffset, sampleCount, channelCount);
//else if (bitsPerSample > 16 && bitsPerSample <= 24)
// FLACSamplesToBytes_24(inSamples, inSampleOffset, outSamples, outByteOffset, sampleCount, channelCount, 24 - bitsPerSample);
else if (bitsPerSample == 32)
Buffer.BlockCopy(inSamples, inSampleOffset * 4 * channelCount, outSamples, outByteOffset, sampleCount * 4 * channelCount);
else
throw new Exception("Unsupported bitsPerSample value");
}
public static unsafe void FLACSamplesToBytes(int[,] inSamples, int inSampleOffset,
byte[] outSamples, int outByteOffset, int sampleCount, int channelCount, int bitsPerSample)
{
if (bitsPerSample == 16)
FLACSamplesToBytes_16(inSamples, inSampleOffset, outSamples, outByteOffset, sampleCount, channelCount);
else if (bitsPerSample > 16 && bitsPerSample <= 24)
FLACSamplesToBytes_24(inSamples, inSampleOffset, outSamples, outByteOffset, sampleCount, channelCount, 24 - bitsPerSample);
else
throw new Exception("Unsupported bitsPerSample value");
}
public static unsafe void FLACSamplesToBytes(int[,] inSamples, int inSampleOffset,
byte* outSamples, int sampleCount, int channelCount, int bitsPerSample)
{
if (bitsPerSample == 16)
FLACSamplesToBytes_16(inSamples, inSampleOffset, outSamples, sampleCount, channelCount);
else
throw new Exception("Unsupported bitsPerSample value");
}
public static unsafe void Bytes16ToFloat(byte[] inSamples, int inByteOffset,
float[,] outSamples, int outSampleOffset, int sampleCount, int channelCount)
{
int loopCount = sampleCount * channelCount;
if ((inSamples.Length - inByteOffset < loopCount * 2) ||
(outSamples.GetLength(0) - outSampleOffset < sampleCount))
throw new IndexOutOfRangeException();
fixed (byte* pInSamplesFixed = &inSamples[inByteOffset])
{
fixed (float* pOutSamplesFixed = &outSamples[outSampleOffset, 0])
{
short* pInSamples = (short*)pInSamplesFixed;
float* pOutSamples = pOutSamplesFixed;
for (int i = 0; i < loopCount; i++)
*(pOutSamples++) = *(pInSamples++) / 32768.0f;
}
}
}
public static unsafe void BytesToFLACSamples_16(byte[] inSamples, int inByteOffset,
int[,] outSamples, int outSampleOffset, int sampleCount, int channelCount)
{
int loopCount = sampleCount * channelCount;
if ((inSamples.Length - inByteOffset < loopCount * 2) ||
(outSamples.GetLength(0) - outSampleOffset < sampleCount))
{
throw new IndexOutOfRangeException();
}
fixed (byte* pInSamplesFixed = &inSamples[inByteOffset])
{
fixed (int* pOutSamplesFixed = &outSamples[outSampleOffset, 0])
{
short* pInSamples = (short*)pInSamplesFixed;
int* pOutSamples = pOutSamplesFixed;
for (int i = 0; i < loopCount; i++)
{
*(pOutSamples++) = (int)*(pInSamples++);
}
}
}
}
public static unsafe void BytesToFLACSamples_24(byte[] inSamples, int inByteOffset,
int[,] outSamples, int outSampleOffset, int sampleCount, int channelCount, int wastedBits)
{
int loopCount = sampleCount * channelCount;
if ((inSamples.Length - inByteOffset < loopCount * 3) ||
(outSamples.GetLength(0) - outSampleOffset < sampleCount))
throw new IndexOutOfRangeException();
fixed (byte* pInSamplesFixed = &inSamples[inByteOffset])
{
fixed (int* pOutSamplesFixed = &outSamples[outSampleOffset, 0])
{
byte* pInSamples = (byte*)pInSamplesFixed;
int* pOutSamples = pOutSamplesFixed;
for (int i = 0; i < loopCount; i++)
{
int sample = (int)*(pInSamples++);
sample += (int)*(pInSamples++) << 8;
sample += (int)*(pInSamples++) << 16;
*(pOutSamples++) = (sample << 8) >> (8 + wastedBits);
}
}
}
}
public static unsafe void BytesToFLACSamples(byte[] inSamples, int inByteOffset,
int[,] outSamples, int outSampleOffset, int sampleCount, int channelCount, int bitsPerSample)
{
if (bitsPerSample == 16)
BytesToFLACSamples_16(inSamples, inByteOffset, outSamples, outSampleOffset, sampleCount, channelCount);
else if (bitsPerSample > 16 && bitsPerSample <= 24)
BytesToFLACSamples_24(inSamples, inByteOffset, outSamples, outSampleOffset, sampleCount, channelCount, 24 - bitsPerSample);
else
throw new Exception("Unsupported bitsPerSample value");
}
#endregion
private int[,] samples;
private float[,] fsamples;
private byte[] bytes;
private int length;
private int size;
private AudioPCMConfig pcm;
private bool dataInSamples = false;
private bool dataInBytes = false;
private bool dataInFloat = false;
public int Length
{
get { return length; }
set { length = value; }
}
public int Size
{
get { return size; }
}
public AudioPCMConfig PCM { get { return pcm; } }
public int ByteLength
{
get
{
return length * pcm.BlockAlign;
}
}
public int[,] Samples
{
get
{
if (samples == null || samples.GetLength(0) < length)
samples = new int[size, pcm.ChannelCount];
if (!dataInSamples && dataInBytes && length != 0)
BytesToFLACSamples(bytes, 0, samples, 0, length, pcm.ChannelCount, pcm.BitsPerSample);
dataInSamples = true;
return samples;
}
}
public float[,] Float
{
get
{
if (fsamples == null || fsamples.GetLength(0) < length)
fsamples = new float[size, pcm.ChannelCount];
if (!dataInFloat && dataInBytes && length != 0)
{
if (pcm.BitsPerSample == 16)
Bytes16ToFloat(bytes, 0, fsamples, 0, length, pcm.ChannelCount);
//else if (pcm.BitsPerSample > 16 && PCM.BitsPerSample <= 24)
// BytesToFLACSamples_24(bytes, 0, fsamples, 0, length, pcm.ChannelCount, 24 - pcm.BitsPerSample);
else if (pcm.BitsPerSample == 32)
Buffer.BlockCopy(bytes, 0, fsamples, 0, length * 4 * pcm.ChannelCount);
else
throw new Exception("Unsupported bitsPerSample value");
}
dataInFloat = true;
return fsamples;
}
}
public byte[] Bytes
{
get
{
if (bytes == null || bytes.Length < length * pcm.BlockAlign)
bytes = new byte[size * pcm.BlockAlign];
if (!dataInBytes && length != 0)
{
if (dataInSamples)
FLACSamplesToBytes(samples, 0, bytes, 0, length, pcm.ChannelCount, pcm.BitsPerSample);
else if (dataInFloat)
FloatToBytes(fsamples, 0, bytes, 0, length, pcm.ChannelCount, pcm.BitsPerSample);
}
dataInBytes = true;
return bytes;
}
}
public AudioBuffer(AudioPCMConfig _pcm, int _size)
{
pcm = _pcm;
size = _size;
length = 0;
}
public AudioBuffer(AudioPCMConfig _pcm, int[,] _samples, int _length)
{
pcm = _pcm;
// assert _samples.GetLength(1) == pcm.ChannelCount
Prepare(_samples, _length);
}
public AudioBuffer(AudioPCMConfig _pcm, byte[] _bytes, int _length)
{
pcm = _pcm;
Prepare(_bytes, _length);
}
public AudioBuffer(IAudioSource source, int _size)
{
pcm = source.PCM;
size = _size;
}
public void Prepare(IAudioDest dest)
{
if (dest.Settings.PCM.ChannelCount != pcm.ChannelCount || dest.Settings.PCM.BitsPerSample != pcm.BitsPerSample)
throw new Exception("AudioBuffer format mismatch");
}
public void Prepare(IAudioSource source, int maxLength)
{
if (source.PCM.ChannelCount != pcm.ChannelCount || source.PCM.BitsPerSample != pcm.BitsPerSample)
throw new Exception("AudioBuffer format mismatch");
length = size;
if (maxLength >= 0)
length = Math.Min(length, maxLength);
if (source.Remaining >= 0)
length = (int)Math.Min((long)length, source.Remaining);
dataInBytes = false;
dataInSamples = false;
dataInFloat = false;
}
public void Prepare(int maxLength)
{
length = size;
if (maxLength >= 0)
length = Math.Min(length, maxLength);
dataInBytes = false;
dataInSamples = false;
dataInFloat = false;
}
public void Prepare(int[,] _samples, int _length)
{
length = _length;
size = _samples.GetLength(0);
samples = _samples;
dataInSamples = true;
dataInBytes = false;
dataInFloat = false;
if (length > size)
throw new Exception("Invalid length");
}
public void Prepare(byte[] _bytes, int _length)
{
length = _length;
size = _bytes.Length / PCM.BlockAlign;
bytes = _bytes;
dataInSamples = false;
dataInBytes = true;
dataInFloat = false;
if (length > size)
throw new Exception("Invalid length");
}
internal unsafe void Load(int dstOffset, AudioBuffer src, int srcOffset, int copyLength)
{
if (dataInBytes)
Buffer.BlockCopy(src.Bytes, srcOffset * pcm.BlockAlign, Bytes, dstOffset * pcm.BlockAlign, copyLength * pcm.BlockAlign);
if (dataInSamples)
Buffer.BlockCopy(src.Samples, srcOffset * pcm.ChannelCount * 4, Samples, dstOffset * pcm.ChannelCount * 4, copyLength * pcm.ChannelCount * 4);
if (dataInFloat)
Buffer.BlockCopy(src.Float, srcOffset * pcm.ChannelCount * 4, Float, dstOffset * pcm.ChannelCount * 4, copyLength * pcm.ChannelCount * 4);
}
public unsafe void Prepare(AudioBuffer _src, int _offset, int _length)
{
length = Math.Min(size, _src.Length - _offset);
if (_length >= 0)
length = Math.Min(length, _length);
dataInBytes = false;
dataInFloat = false;
dataInSamples = false;
if (_src.dataInBytes)
dataInBytes = true;
else if (_src.dataInSamples)
dataInSamples = true;
else if (_src.dataInFloat)
dataInFloat = true;
Load(0, _src, _offset, length);
}
public void Swap(AudioBuffer buffer)
{
if (pcm.BitsPerSample != buffer.PCM.BitsPerSample || pcm.ChannelCount != buffer.PCM.ChannelCount)
throw new Exception("AudioBuffer format mismatch");
int[,] samplesTmp = samples;
float[,] floatsTmp = fsamples;
byte[] bytesTmp = bytes;
fsamples = buffer.fsamples;
samples = buffer.samples;
bytes = buffer.bytes;
length = buffer.length;
size = buffer.size;
dataInSamples = buffer.dataInSamples;
dataInBytes = buffer.dataInBytes;
dataInFloat = buffer.dataInFloat;
buffer.samples = samplesTmp;
buffer.bytes = bytesTmp;
buffer.fsamples = floatsTmp;
buffer.length = 0;
buffer.dataInSamples = false;
buffer.dataInBytes = false;
buffer.dataInFloat = false;
}
unsafe public void Interlace(int pos, int* src1, int* src2, int n)
{
if (PCM.ChannelCount != 2)
{
throw new Exception("Must be stereo");
}
if (PCM.BitsPerSample == 16)
{
fixed (byte* bs = Bytes)
{
int* res = ((int*)bs) + pos;
for (int i = n; i > 0; i--)
*(res++) = (*(src1++) & 0xffff) ^ (*(src2++) << 16);
}
}
else if (PCM.BitsPerSample == 24)
{
fixed (byte* bs = Bytes)
{
byte* res = bs + pos * 6;
for (int i = n; i > 0; i--)
{
uint sample_out = (uint)*(src1++);
*(res++) = (byte)(sample_out & 0xFF);
sample_out >>= 8;
*(res++) = (byte)(sample_out & 0xFF);
sample_out >>= 8;
*(res++) = (byte)(sample_out & 0xFF);
sample_out = (uint)*(src2++);
*(res++) = (byte)(sample_out & 0xFF);
sample_out >>= 8;
*(res++) = (byte)(sample_out & 0xFF);
sample_out >>= 8;
*(res++) = (byte)(sample_out & 0xFF);
}
}
}
else
{
throw new Exception("Unsupported BPS");
}
}
//public void Clear()
//{
// length = 0;
//}
}
}

54
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using System;
using System.ComponentModel;
using System.Collections.Generic;
using System.Xml.Serialization;
using System.Text;
using Newtonsoft.Json;
using System.IO;
namespace CUETools.Codecs
{
public interface IAudioDecoderSettings
{
string Name { get; }
string Extension { get; }
Type DecoderType { get; }
int Priority { get; }
IAudioDecoderSettings Clone();
}
public static class IAudioDecoderSettingsExtensions
{
public static bool HasBrowsableAttributes(this IAudioDecoderSettings settings)
{
bool hasBrowsable = false;
foreach (PropertyDescriptor property in TypeDescriptor.GetProperties(settings))
{
bool isBrowsable = true;
foreach (var attribute in property.Attributes)
{
var browsable = attribute as BrowsableAttribute;
isBrowsable &= browsable == null || browsable.Browsable;
}
hasBrowsable |= isBrowsable;
}
return hasBrowsable;
}
public static void Init(this IAudioDecoderSettings settings)
{
// Iterate through each property and call ResetValue()
foreach (PropertyDescriptor property in TypeDescriptor.GetProperties(settings))
property.ResetValue(settings);
}
public static IAudioSource Open(this IAudioDecoderSettings settings, string path, Stream IO = null)
{
return Activator.CreateInstance(settings.DecoderType, settings, path, IO) as IAudioSource;
}
}
}

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using System;
using System.ComponentModel;
using System.Collections.Generic;
using System.Text;
using Newtonsoft.Json;
#if NET20
namespace System.Runtime.CompilerServices
{
[AttributeUsage(AttributeTargets.Assembly | AttributeTargets.Class
| AttributeTargets.Method)]
public sealed class ExtensionAttribute : Attribute { }
}
#endif
namespace CUETools.Codecs
{
public interface IAudioEncoderSettings
{
string Name { get; }
string Extension { get; }
Type EncoderType { get; }
bool Lossless { get; }
int Priority { get; }
string SupportedModes { get; }
string DefaultMode { get; }
string EncoderMode { get; set; }
AudioPCMConfig PCM { get; set; }
int BlockSize { get; set; }
int Padding { get; set; }
IAudioEncoderSettings Clone();
}
public static class IAudioEncoderSettingsExtensions
{
public static bool HasBrowsableAttributes(this IAudioEncoderSettings settings)
{
bool hasBrowsable = false;
foreach (PropertyDescriptor property in TypeDescriptor.GetProperties(settings))
{
bool isBrowsable = true;
foreach (var attribute in property.Attributes)
{
var browsable = attribute as BrowsableAttribute;
isBrowsable &= browsable == null || browsable.Browsable;
}
hasBrowsable |= isBrowsable;
}
return hasBrowsable;
}
public static int GetEncoderModeIndex(this IAudioEncoderSettings settings)
{
return new List<string>(settings.SupportedModes.Split(' ')).FindIndex(m => m == settings.EncoderMode);
}
public static void SetEncoderModeIndex(this IAudioEncoderSettings settings, int value)
{
string[] modes = settings.SupportedModes.Split(' ');
if (modes.Length == 0 && value < 0)
return;
if (value < 0 || value >= modes.Length)
throw new IndexOutOfRangeException();
settings.EncoderMode = modes[value];
}
public static void SetDefaultValuesForMode(this IAudioEncoderSettings settings)
{
foreach (PropertyDescriptor property in TypeDescriptor.GetProperties(settings))
if (!property.CanResetValue(settings))
foreach (var attribute in property.Attributes)
if (attribute is DefaultValueForModeAttribute)
{
var defaultValueForMode = attribute as DefaultValueForModeAttribute;
property.SetValue(settings, defaultValueForMode.m_values[settings.GetEncoderModeIndex()]);
}
}
public static bool HasDefaultValuesForMode(this IAudioEncoderSettings settings, int index)
{
bool res = true;
foreach (PropertyDescriptor property in TypeDescriptor.GetProperties(settings))
foreach (var attribute in property.Attributes)
if (attribute is DefaultValueForModeAttribute)
{
var defaultValueForMode = attribute as DefaultValueForModeAttribute;
res &= property.GetValue(settings).Equals(defaultValueForMode.m_values[index]);
}
return res;
}
public static int GuessEncoderMode(this IAudioEncoderSettings settings)
{
// return new List<string>(settings.SupportedModes.Split(' ')).FindIndex(m => settings.HasDefaultValuesForMode(m));
string[] modes = settings.SupportedModes.Split(' ');
if (modes == null || modes.Length < 1)
return -1;
for (int i = 0; i < modes.Length; i++)
if (settings.HasDefaultValuesForMode(i))
return i;
return -1;
}
public static void Init(this IAudioEncoderSettings settings, AudioPCMConfig pcm = null)
{
// Iterate through each property and call ResetValue()
foreach (PropertyDescriptor property in TypeDescriptor.GetProperties(settings))
property.ResetValue(settings);
settings.EncoderMode = settings.DefaultMode;
settings.PCM = pcm;
}
}
}

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namespace CUETools.Codecs
{
public class AudioPCMConfig
{
public static readonly AudioPCMConfig RedBook = new AudioPCMConfig(16, 2, 44100);
public enum SpeakerConfig
{
SPEAKER_FRONT_LEFT = 0x1,
SPEAKER_FRONT_RIGHT = 0x2,
SPEAKER_FRONT_CENTER = 0x4,
SPEAKER_LOW_FREQUENCY = 0x8,
SPEAKER_BACK_LEFT = 0x10,
SPEAKER_BACK_RIGHT = 0x20,
SPEAKER_FRONT_LEFT_OF_CENTER = 0x40,
SPEAKER_FRONT_RIGHT_OF_CENTER = 0x80,
SPEAKER_BACK_CENTER = 0x100,
SPEAKER_SIDE_LEFT = 0x200,
SPEAKER_SIDE_RIGHT = 0x400,
SPEAKER_TOP_CENTER = 0x800,
SPEAKER_TOP_FRONT_LEFT = 0x1000,
SPEAKER_TOP_FRONT_CENTER = 0x2000,
SPEAKER_TOP_FRONT_RIGHT = 0x4000,
SPEAKER_TOP_BACK_LEFT = 0x8000,
SPEAKER_TOP_BACK_CENTER = 0x10000,
SPEAKER_TOP_BACK_RIGHT = 0x20000,
DIRECTOUT = 0,
KSAUDIO_SPEAKER_MONO = (SPEAKER_FRONT_CENTER),
KSAUDIO_SPEAKER_STEREO = (SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT),
KSAUDIO_SPEAKER_QUAD = (SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT | SPEAKER_BACK_LEFT | SPEAKER_BACK_RIGHT),
KSAUDIO_SPEAKER_SURROUND = (SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT | SPEAKER_FRONT_CENTER | SPEAKER_BACK_CENTER),
KSAUDIO_SPEAKER_5POINT1 = (SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT | SPEAKER_FRONT_CENTER | SPEAKER_LOW_FREQUENCY | SPEAKER_BACK_LEFT | SPEAKER_BACK_RIGHT),
KSAUDIO_SPEAKER_5POINT1_SURROUND = (SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT | SPEAKER_FRONT_CENTER | SPEAKER_LOW_FREQUENCY | SPEAKER_SIDE_LEFT | SPEAKER_SIDE_RIGHT),
KSAUDIO_SPEAKER_7POINT1 = (SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT | SPEAKER_FRONT_CENTER | SPEAKER_LOW_FREQUENCY | SPEAKER_BACK_LEFT | SPEAKER_BACK_RIGHT | SPEAKER_FRONT_LEFT_OF_CENTER | SPEAKER_FRONT_RIGHT_OF_CENTER),
KSAUDIO_SPEAKER_7POINT1_SURROUND = (SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT | SPEAKER_FRONT_CENTER | SPEAKER_LOW_FREQUENCY | SPEAKER_BACK_LEFT | SPEAKER_BACK_RIGHT | SPEAKER_SIDE_LEFT | SPEAKER_SIDE_RIGHT),
DVDAUDIO_GR1_0 = SPEAKER_FRONT_CENTER,
DVDAUDIO_GR1_1 = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT,
DVDAUDIO_GR1_2 = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT,
DVDAUDIO_GR1_3 = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT,
DVDAUDIO_GR1_4 = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT,
DVDAUDIO_GR1_5 = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT,
DVDAUDIO_GR1_6 = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT,
DVDAUDIO_GR1_7 = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT,
DVDAUDIO_GR1_8 = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT,
DVDAUDIO_GR1_9 = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT,
DVDAUDIO_GR1_10 = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT,
DVDAUDIO_GR1_11 = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT,
DVDAUDIO_GR1_12 = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT,
DVDAUDIO_GR1_13 = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT | SPEAKER_FRONT_CENTER,
DVDAUDIO_GR1_14 = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT | SPEAKER_FRONT_CENTER,
DVDAUDIO_GR1_15 = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT | SPEAKER_FRONT_CENTER,
DVDAUDIO_GR1_16 = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT | SPEAKER_FRONT_CENTER,
DVDAUDIO_GR1_17 = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT | SPEAKER_FRONT_CENTER,
DVDAUDIO_GR1_18 = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT | SPEAKER_BACK_LEFT | SPEAKER_BACK_RIGHT,
DVDAUDIO_GR1_19 = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT | SPEAKER_BACK_LEFT | SPEAKER_BACK_RIGHT,
DVDAUDIO_GR1_20 = SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT | SPEAKER_BACK_LEFT | SPEAKER_BACK_RIGHT,
DVDAUDIO_GR2_0 = 0,
DVDAUDIO_GR2_1 = 0,
DVDAUDIO_GR2_2 = SPEAKER_BACK_CENTER,
DVDAUDIO_GR2_3 = SPEAKER_BACK_LEFT | SPEAKER_BACK_RIGHT,
DVDAUDIO_GR2_4 = SPEAKER_LOW_FREQUENCY,
DVDAUDIO_GR2_5 = SPEAKER_LOW_FREQUENCY | SPEAKER_BACK_CENTER,
DVDAUDIO_GR2_6 = SPEAKER_LOW_FREQUENCY | SPEAKER_BACK_LEFT | SPEAKER_BACK_RIGHT,
DVDAUDIO_GR2_7 = SPEAKER_FRONT_CENTER,
DVDAUDIO_GR2_8 = SPEAKER_FRONT_CENTER | SPEAKER_BACK_CENTER,
DVDAUDIO_GR2_9 = SPEAKER_FRONT_CENTER | SPEAKER_BACK_LEFT | SPEAKER_BACK_RIGHT,
DVDAUDIO_GR2_10 = SPEAKER_FRONT_CENTER | SPEAKER_LOW_FREQUENCY,
DVDAUDIO_GR2_11 = SPEAKER_FRONT_CENTER | SPEAKER_LOW_FREQUENCY | SPEAKER_BACK_CENTER,
DVDAUDIO_GR2_12 = SPEAKER_FRONT_CENTER | SPEAKER_LOW_FREQUENCY | SPEAKER_BACK_LEFT | SPEAKER_BACK_RIGHT,
DVDAUDIO_GR2_13 = SPEAKER_BACK_CENTER,
DVDAUDIO_GR2_14 = SPEAKER_BACK_LEFT | SPEAKER_BACK_RIGHT,
DVDAUDIO_GR2_15 = SPEAKER_LOW_FREQUENCY,
DVDAUDIO_GR2_16 = SPEAKER_LOW_FREQUENCY | SPEAKER_BACK_CENTER,
DVDAUDIO_GR2_17 = SPEAKER_LOW_FREQUENCY | SPEAKER_BACK_LEFT | SPEAKER_BACK_RIGHT,
DVDAUDIO_GR2_18 = SPEAKER_LOW_FREQUENCY,
DVDAUDIO_GR2_19 = SPEAKER_FRONT_CENTER,
DVDAUDIO_GR2_20 = SPEAKER_FRONT_CENTER | SPEAKER_LOW_FREQUENCY,
}
private int _bitsPerSample;
private int _channelCount;
private int _sampleRate;
private SpeakerConfig _channelMask;
public int BitsPerSample { get { return _bitsPerSample; } }
public int ChannelCount { get { return _channelCount; } }
public int SampleRate { get { return _sampleRate; } }
public int BlockAlign { get { return _channelCount * ((_bitsPerSample + 7) / 8); } }
public SpeakerConfig ChannelMask { get { return _channelMask; } }
public bool IsRedBook { get { return _bitsPerSample == 16 && _channelCount == 2 && _sampleRate == 44100; } }
public static int ChannelsInMask(SpeakerConfig mask)
{
int count = 0;
while (mask != 0)
{
count++;
mask &= (mask - 1);
}
return count;
}
public static SpeakerConfig GetDefaultChannelMask(int channelCount)
{
switch (channelCount)
{
case 1:
return SpeakerConfig.KSAUDIO_SPEAKER_MONO;
case 2:
return SpeakerConfig.KSAUDIO_SPEAKER_STEREO;
case 3:
return SpeakerConfig.KSAUDIO_SPEAKER_STEREO | SpeakerConfig.SPEAKER_LOW_FREQUENCY;
case 4:
return SpeakerConfig.KSAUDIO_SPEAKER_QUAD;
case 5:
//return SpeakerConfig.KSAUDIO_SPEAKER_5POINT1 & ~SpeakerConfig.SPEAKER_LOW_FREQUENCY;
return SpeakerConfig.KSAUDIO_SPEAKER_5POINT1_SURROUND & ~SpeakerConfig.SPEAKER_LOW_FREQUENCY;
case 6:
//return SpeakerConfig.KSAUDIO_SPEAKER_5POINT1;
return SpeakerConfig.KSAUDIO_SPEAKER_5POINT1_SURROUND;
case 7:
return SpeakerConfig.KSAUDIO_SPEAKER_5POINT1_SURROUND | SpeakerConfig.SPEAKER_BACK_CENTER;
case 8:
return SpeakerConfig.KSAUDIO_SPEAKER_7POINT1_SURROUND;
}
return (SpeakerConfig)((1 << channelCount) - 1);
}
public AudioPCMConfig(int bitsPerSample, int channelCount, int sampleRate, SpeakerConfig channelMask = SpeakerConfig.DIRECTOUT)
{
_bitsPerSample = bitsPerSample;
_channelCount = channelCount;
_sampleRate = sampleRate;
_channelMask = channelMask == 0 ? GetDefaultChannelMask(channelCount) : channelMask;
}
}
}

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using System;
using System.Threading;
namespace CUETools.Codecs
{
public class AudioPipe : IAudioSource//, IDisposable
{
private AudioBuffer _readBuffer, _writeBuffer;
private AudioPCMConfig pcm;
private long _sampleLen, _samplePos;
private int _maxLength;
private Thread _workThread;
private IAudioSource _source;
private bool _close = false;
private bool _haveData = false;
private int _bufferPos = 0;
private Exception _ex = null;
private bool own;
private ThreadPriority priority;
public IAudioDecoderSettings Settings => null;
public long Position
{
get
{
return _samplePos;
}
set
{
if (value == _samplePos)
return;
if (_source == null)
throw new NotSupportedException();
lock (this)
{
_close = true;
Monitor.Pulse(this);
}
if (_workThread != null)
{
_workThread.Join();
_workThread = null;
}
_source.Position = value;
_samplePos = value;
_bufferPos = 0;
_haveData = false;
_close = false;
//Go();
//throw new Exception("not supported");
}
}
public TimeSpan Duration => Length < 0 ? TimeSpan.Zero : TimeSpan.FromSeconds((double)Length / PCM.SampleRate);
public long Length
{
get
{
return _sampleLen;
}
}
public long Remaining
{
get
{
return _sampleLen - _samplePos;
}
}
public AudioPCMConfig PCM
{
get
{
return pcm;
}
}
public string Path
{
get
{
if (_source == null)
return "";
return _source.Path;
}
}
public AudioPipe(AudioPCMConfig pcm, int size)
{
this.pcm = pcm;
_readBuffer = new AudioBuffer(pcm, size);
_writeBuffer = new AudioBuffer(pcm, size);
_maxLength = size;
_sampleLen = -1;
_samplePos = 0;
}
public AudioPipe(IAudioSource source, int size, bool own, ThreadPriority priority)
: this(source.PCM, size)
{
this.own = own;
this.priority = priority;
_source = source;
_sampleLen = _source.Length;
_samplePos = _source.Position;
}
public AudioPipe(IAudioSource source, int size)
: this(source, size, true, ThreadPriority.BelowNormal)
{
}
private void Decompress(object o)
{
#if !DEBUG
try
#endif
{
bool done = false;
do
{
done = _source.Read(_writeBuffer, -1) == 0;
lock (this)
{
while (_haveData && !_close)
Monitor.Wait(this);
if (_close)
break;
AudioBuffer temp = _writeBuffer;
_writeBuffer = _readBuffer;
_readBuffer = temp;
_haveData = true;
Monitor.Pulse(this);
}
} while (!done);
}
#if !DEBUG
catch (Exception ex)
{
lock (this)
{
_ex = ex;
Monitor.Pulse(this);
}
}
#endif
}
private void Go()
{
if (_workThread != null || _ex != null || _source == null) return;
_workThread = new Thread(Decompress);
_workThread.Priority = priority;
_workThread.IsBackground = true;
_workThread.Name = "AudioPipe";
_workThread.Start(null);
}
//public new void Dispose()
//{
// _buffer.Clear();
//}
public void Close()
{
lock (this)
{
_close = true;
Monitor.Pulse(this);
}
if (_workThread != null)
{
_workThread.Join();
_workThread = null;
}
if (_source != null)
{
if (own) _source.Close();
_source = null;
}
if (_readBuffer != null)
{
//_readBuffer.Clear();
_readBuffer = null;
}
if (_writeBuffer != null)
{
//_writeBuffer.Clear();
_writeBuffer = null;
}
}
public int Write(AudioBuffer buff)
{
if (_writeBuffer.Size < _writeBuffer.Length + buff.Length)
{
AudioBuffer realloced = new AudioBuffer(pcm, _writeBuffer.Size + buff.Size);
realloced.Prepare(_writeBuffer, 0, _writeBuffer.Length);
_writeBuffer = realloced;
}
if (_writeBuffer.Length == 0)
_writeBuffer.Prepare(buff, 0, buff.Length);
else
{
_writeBuffer.Load(_writeBuffer.Length, buff, 0, buff.Length);
_writeBuffer.Length += buff.Length;
}
lock (this)
{
if (!_haveData)
{
AudioBuffer temp = _writeBuffer;
_writeBuffer = _readBuffer;
_writeBuffer.Length = 0;
_readBuffer = temp;
_haveData = true;
Monitor.Pulse(this);
}
}
return _writeBuffer.Length;
}
public int Read(AudioBuffer buff, int maxLength)
{
Go();
bool needToCopy = false;
if (_bufferPos != 0)
needToCopy = true;
else
lock (this)
{
while (!_haveData && _ex == null)
Monitor.Wait(this);
if (_ex != null)
throw _ex;
if (_bufferPos == 0 && (maxLength < 0 || _readBuffer.Length <= maxLength))
{
buff.Swap(_readBuffer);
_haveData = false;
Monitor.Pulse(this);
}
else
needToCopy = true;
}
if (needToCopy)
{
buff.Prepare(_readBuffer, _bufferPos, maxLength);
_bufferPos += buff.Length;
if (_bufferPos == _readBuffer.Length)
{
_bufferPos = 0;
lock (this)
{
_haveData = false;
Monitor.Pulse(this);
}
}
}
_samplePos += buff.Length;
return buff.Length;
}
}
}

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using System;
namespace CUETools.Codecs
{
public class AudioSamples
{
public const uint UINT32_MAX = 0xffffffff;
unsafe public static void Interlace(int* res, int* src1, int* src2, int n)
{
for (int i = n; i > 0; i--)
{
*(res++) = *(src1++);
*(res++) = *(src2++);
}
}
unsafe public static void Deinterlace(int* dst1, int* dst2, int* src, int n)
{
for (int i = n; i > 0; i--)
{
*(dst1++) = *(src++);
*(dst2++) = *(src++);
}
}
unsafe public static bool MemCmp(int* res, int* smp, int n)
{
for (int i = n; i > 0; i--)
if (*(res++) != *(smp++))
return true;
return false;
}
unsafe public static void MemCpy(uint* res, uint* smp, int n)
{
for (int i = n; i > 0; i--)
*(res++) = *(smp++);
}
unsafe public static void MemCpy(int* res, int* smp, int n)
{
for (int i = n; i > 0; i--)
*(res++) = *(smp++);
}
unsafe public static void MemCpy(long* res, long* smp, int n)
{
for (int i = n; i > 0; i--)
*(res++) = *(smp++);
}
unsafe public static void MemCpy(short* res, short* smp, int n)
{
for (int i = n; i > 0; i--)
*(res++) = *(smp++);
}
unsafe public static void MemCpy(byte* res, byte* smp, int n)
{
if ((((IntPtr)smp).ToInt64() & 7) == (((IntPtr)res).ToInt64() & 7) && n > 32)
{
int delta = (int)((8 - (((IntPtr)smp).ToInt64() & 7)) & 7);
for (int i = delta; i > 0; i--)
*(res++) = *(smp++);
n -= delta;
MemCpy((long*)res, (long*)smp, n >> 3);
int n8 = (n >> 3) << 3;
n -= n8;
smp += n8;
res += n8;
}
if ((((IntPtr)smp).ToInt64() & 3) == (((IntPtr)res).ToInt64() & 3) && n > 16)
{
int delta = (int)((4 - (((IntPtr)smp).ToInt64() & 3)) & 3);
for (int i = delta; i > 0; i--)
*(res++) = *(smp++);
n -= delta;
MemCpy((int*)res, (int*)smp, n >> 2);
int n4 = (n >> 2) << 2;
n -= n4;
smp += n4;
res += n4;
}
for (int i = n; i > 0; i--)
*(res++) = *(smp++);
}
unsafe public static void MemSet(int* res, int smp, int n)
{
for (int i = n; i > 0; i--)
*(res++) = smp;
}
unsafe public static void MemSet(long* res, long smp, int n)
{
for (int i = n; i > 0; i--)
*(res++) = smp;
}
unsafe public static void MemSet(byte* res, byte smp, int n)
{
if (IntPtr.Size == 8 && (((IntPtr)res).ToInt64() & 7) == 0 && smp == 0 && n > 8)
{
MemSet((long*)res, 0, n >> 3);
int n8 = (n >> 3) << 3;
n -= n8;
res += n8;
}
if ((((IntPtr)res).ToInt64() & 3) == 0 && smp == 0 && n > 4)
{
MemSet((int*)res, 0, n >> 2);
int n4 = (n >> 2) << 2;
n -= n4;
res += n4;
}
for (int i = n; i > 0; i--)
*(res++) = smp;
}
unsafe public static void MemSet(byte[] res, byte smp, int offs, int n)
{
fixed (byte* pres = &res[offs])
MemSet(pres, smp, n);
}
unsafe public static void MemSet(int[] res, int smp, int offs, int n)
{
fixed (int* pres = &res[offs])
MemSet(pres, smp, n);
}
unsafe public static void MemSet(long[] res, long smp, int offs, int n)
{
fixed (long* pres = &res[offs])
MemSet(pres, smp, n);
}
}
}

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using System;
namespace CUETools.Codecs
{
unsafe public class BitReader
{
#region Static Methods
public static int log2i(int v)
{
return log2i((uint)v);
}
public static readonly byte[] MultiplyDeBruijnBitPosition = new byte[32]
{
0, 9, 1, 10, 13, 21, 2, 29, 11, 14, 16, 18, 22, 25, 3, 30,
8, 12, 20, 28, 15, 17, 24, 7, 19, 27, 23, 6, 26, 5, 4, 31
};
public static int log2i(ulong v)
{
v |= v >> 1; // first round down to one less than a power of 2
v |= v >> 2;
v |= v >> 4;
v |= v >> 8;
v |= v >> 16;
if (v >> 32 == 0)
return MultiplyDeBruijnBitPosition[(uint)((uint)v * 0x07C4ACDDU) >> 27];
return 32 + MultiplyDeBruijnBitPosition[(uint)((uint)(v >> 32) * 0x07C4ACDDU) >> 27];
}
public static int log2i(uint v)
{
v |= v >> 1; // first round down to one less than a power of 2
v |= v >> 2;
v |= v >> 4;
v |= v >> 8;
v |= v >> 16;
return MultiplyDeBruijnBitPosition[(uint)(v * 0x07C4ACDDU) >> 27];
}
public static readonly byte[] byte_to_unary_table = new byte[]
{
8, 7, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4,
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
};
#endregion
private byte* buffer_m;
private byte* bptr_m;
private int buffer_len_m;
private int have_bits_m;
private ulong cache_m;
private ushort crc16_m;
public int Position
{
get { return (int)(bptr_m - buffer_m - (have_bits_m >> 3)); }
}
public byte* Buffer
{
get
{
return buffer_m;
}
}
public BitReader()
{
buffer_m = null;
bptr_m = null;
buffer_len_m = 0;
have_bits_m = 0;
cache_m = 0;
crc16_m = 0;
}
public BitReader(byte* _buffer, int _pos, int _len)
{
Reset(_buffer, _pos, _len);
}
public void Reset(byte* _buffer, int _pos, int _len)
{
buffer_m = _buffer;
bptr_m = _buffer + _pos;
buffer_len_m = _len;
have_bits_m = 0;
cache_m = 0;
crc16_m = 0;
fill();
}
public void fill()
{
while (have_bits_m < 56)
{
have_bits_m += 8;
byte b = *(bptr_m++);
cache_m |= (ulong)b << (64 - have_bits_m);
crc16_m = (ushort)((crc16_m << 8) ^ Crc16.table[(crc16_m >> 8) ^ b]);
}
}
/* skip any number of bits */
public void skipbits(int bits)
{
while (bits > have_bits_m)
{
bits -= have_bits_m;
cache_m = 0;
have_bits_m = 0;
fill();
}
cache_m <<= bits;
have_bits_m -= bits;
}
public long read_long()
{
return ((long)readbits(32) << 32) | readbits(32);
}
public ulong read_ulong()
{
return ((ulong)readbits(32) << 32) | readbits(32);
}
public int read_int()
{
return (int)readbits(sizeof(int));
}
public uint read_uint()
{
return (uint)readbits(sizeof(uint));
}
public short read_short()
{
return (short)readbits(16);
}
public ushort read_ushort()
{
return (ushort)readbits(16);
}
/* supports reading 1 to 32 bits, in big endian format */
public uint readbits(int bits)
{
fill();
uint result = (uint)(cache_m >> 64 - bits);
skipbits(bits);
return result;
}
/* supports reading 1 to 64 bits, in big endian format */
public ulong readbits64(int bits)
{
if (bits <= 56)
return readbits(bits);
return ((ulong)readbits(32) << bits - 32) | readbits(bits - 32);
}
/* reads a single bit */
public uint readbit()
{
return readbits(1);
}
public uint read_unary()
{
fill();
uint val = 0;
ulong result = cache_m >> 56;
while (result == 0)
{
val += 8;
cache_m <<= 8;
byte b = *(bptr_m++);
cache_m |= (ulong)b << (64 - have_bits_m);
crc16_m = (ushort)((crc16_m << 8) ^ Crc16.table[(crc16_m >> 8) ^ b]);
result = cache_m >> 56;
}
val += byte_to_unary_table[result];
skipbits((int)(val & 7) + 1);
return val;
}
public void flush()
{
if ((have_bits_m & 7) > 0)
{
cache_m <<= have_bits_m & 7;
have_bits_m -= have_bits_m & 7;
}
}
public ushort get_crc16()
{
if (have_bits_m == 0)
return crc16_m;
ushort crc = 0;
int n = have_bits_m >> 3;
for (int i = 0; i < n; i++)
crc = (ushort)((crc << 8) ^ Crc16.table[(crc >> 8) ^ (byte)(cache_m >> (56 - (i << 3)))]);
return Crc16.Subtract(crc16_m, crc, n);
}
public int readbits_signed(int bits)
{
int val = (int)readbits(bits);
val <<= (32 - bits);
val >>= (32 - bits);
return val;
}
public uint read_utf8()
{
uint x = readbits(8);
uint v;
int i;
if (0 == (x & 0x80))
{
v = x;
i = 0;
}
else if (0xC0 == (x & 0xE0)) /* 110xxxxx */
{
v = x & 0x1F;
i = 1;
}
else if (0xE0 == (x & 0xF0)) /* 1110xxxx */
{
v = x & 0x0F;
i = 2;
}
else if (0xF0 == (x & 0xF8)) /* 11110xxx */
{
v = x & 0x07;
i = 3;
}
else if (0xF8 == (x & 0xFC)) /* 111110xx */
{
v = x & 0x03;
i = 4;
}
else if (0xFC == (x & 0xFE)) /* 1111110x */
{
v = x & 0x01;
i = 5;
}
else if (0xFE == x) /* 11111110 */
{
v = 0;
i = 6;
}
else
{
throw new Exception("invalid utf8 encoding");
}
for (; i > 0; i--)
{
x = readbits(8);
if (0x80 != (x & 0xC0)) /* 10xxxxxx */
throw new Exception("invalid utf8 encoding");
v <<= 6;
v |= (x & 0x3F);
}
return v;
}
public void read_rice_block(int n, int k, int* r)
{
fill();
fixed (byte* unary_table = byte_to_unary_table)
fixed (ushort* t = Crc16.table)
{
uint mask = (1U << k) - 1;
byte* bptr = bptr_m;
int have_bits = have_bits_m;
ulong cache = cache_m;
ushort crc = crc16_m;
for (int i = n; i > 0; i--)
{
uint bits;
byte* orig_bptr = bptr;
while ((bits = unary_table[cache >> 56]) == 8)
{
cache <<= 8;
byte b = *(bptr++);
cache |= (ulong)b << (64 - have_bits);
crc = (ushort)((crc << 8) ^ t[(crc >> 8) ^ b]);
}
uint msbs = bits + ((uint)(bptr - orig_bptr) << 3);
// assumes k <= 41 (have_bits < 41 + 7 + 1 + 8 == 57, so we don't loose bits here)
while (have_bits < 56)
{
have_bits += 8;
byte b = *(bptr++);
cache |= (ulong)b << (64 - have_bits);
crc = (ushort)((crc << 8) ^ t[(crc >> 8) ^ b]);
}
int btsk = k + (int)bits + 1;
uint uval = (msbs << k) | (uint)((cache >> (64 - btsk)) & mask);
cache <<= btsk;
have_bits -= btsk;
*(r++) = (int)(uval >> 1 ^ -(int)(uval & 1));
}
have_bits_m = have_bits;
cache_m = cache;
bptr_m = bptr;
crc16_m = crc;
}
}
}
}

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using System;
namespace CUETools.Codecs
{
public class BitWriter
{
private ushort crc16_m;
private ulong bit_buf_m;
private int bit_left_m;
private byte[] buffer;
private int buf_start, buf_ptr_m, buf_end;
private bool eof;
public byte[] Buffer
{
get
{
return buffer;
}
}
public int Length
{
get
{
return buf_ptr_m - buf_start;
}
set
{
flush();
buf_ptr_m = buf_start + value;
}
}
public int BitLength
{
get
{
return buf_ptr_m * 8 + 64 - bit_left_m;
}
}
public ushort get_crc16()
{
return crc16_m;
}
public BitWriter(byte[] buf, int pos, int len)
{
buffer = buf;
buf_start = pos;
buf_ptr_m = pos;
buf_end = pos + len;
bit_left_m = 64;
bit_buf_m = 0;
crc16_m = 0;
eof = false;
}
public void Reset()
{
buf_ptr_m = buf_start;
bit_left_m = 64;
bit_buf_m = 0;
crc16_m = 0;
eof = false;
}
public void writebytes(int bytes, byte c)
{
for (; bytes > 0; bytes--)
{
writebits(8, c);
}
}
public unsafe void writeints(int len, int pos, byte* buf)
{
int old_pos = BitLength;
int start = old_pos / 8;
int start1 = pos / 8;
int end = (old_pos + len) / 8;
int end1 = (pos + len) / 8;
flush();
byte start_val = old_pos % 8 != 0 ? buffer[start] : (byte)0;
fixed (byte* buf1 = &buffer[0])
{
if (old_pos % 8 != 0)
crc16_m = Crc16.Subtract(crc16_m, 0, 1);
crc16_m = Crc16.ComputeChecksum(crc16_m, buf + start1, end - start);
AudioSamples.MemCpy(buf1 + start, buf + start1, end - start);
buf1[start] |= start_val;
}
buf_ptr_m = end;
if ((old_pos + len) % 8 != 0)
writebits((old_pos + len) % 8, buf[end1] >> (8 - ((old_pos + len) % 8)));
}
public void write(params char[] chars)
{
foreach (char c in chars)
writebits(8, (byte)c);
}
public void write(string s)
{
for (int i = 0; i < s.Length; i++)
writebits(8, (byte)s[i]);
}
public void write(byte[] s)
{
for (int i = 0; i < s.Length; i++)
writebits(8, s[i]);
}
public void writebits_signed(int bits, int val)
{
writebits(bits, val & ((1 << bits) - 1));
}
public void writebits_signed(uint bits, int val)
{
writebits((int)bits, val & ((1 << (int)bits) - 1));
}
public void writebits(int bits, int val)
{
writebits(bits, (ulong)val);
}
public void writebits(DateTime val)
{
TimeSpan span = val.ToUniversalTime() - new DateTime(1904, 1, 1, 0, 0, 0, 0, DateTimeKind.Utc);
writebits(32, (ulong)span.TotalSeconds);
}
public void writebits(int bits, uint val)
{
writebits(bits, (ulong)val);
}
public void writebits(int bits, ulong val)
{
//assert(bits == 32 || val < (1U << bits));
if (bits == 0 || eof) return;
if (bits < bit_left_m)
{
bit_left_m -= bits;
bit_buf_m |= val << bit_left_m;
}
else
{
ulong bb = bit_buf_m | (val >> (bits - bit_left_m));
if (buffer != null)
{
if (buf_ptr_m + 8 > buf_end)
{
eof = true;
return;
}
crc16_m = (ushort)((crc16_m << 8) ^ Crc16.table[(crc16_m >> 8) ^ (byte)(bb >> 56)]);
crc16_m = (ushort)((crc16_m << 8) ^ Crc16.table[(crc16_m >> 8) ^ (byte)(bb >> 48)]);
crc16_m = (ushort)((crc16_m << 8) ^ Crc16.table[(crc16_m >> 8) ^ (byte)(bb >> 40)]);
crc16_m = (ushort)((crc16_m << 8) ^ Crc16.table[(crc16_m >> 8) ^ (byte)(bb >> 32)]);
crc16_m = (ushort)((crc16_m << 8) ^ Crc16.table[(crc16_m >> 8) ^ (byte)(bb >> 24)]);
crc16_m = (ushort)((crc16_m << 8) ^ Crc16.table[(crc16_m >> 8) ^ (byte)(bb >> 16)]);
crc16_m = (ushort)((crc16_m << 8) ^ Crc16.table[(crc16_m >> 8) ^ (byte)(bb >> 8)]);
crc16_m = (ushort)((crc16_m << 8) ^ Crc16.table[(crc16_m >> 8) ^ (byte)(bb )]);
buffer[buf_ptr_m + 7] = (byte)(bb & 0xFF); bb >>= 8;
buffer[buf_ptr_m + 6] = (byte)(bb & 0xFF); bb >>= 8;
buffer[buf_ptr_m + 5] = (byte)(bb & 0xFF); bb >>= 8;
buffer[buf_ptr_m + 4] = (byte)(bb & 0xFF); bb >>= 8;
buffer[buf_ptr_m + 3] = (byte)(bb & 0xFF); bb >>= 8;
buffer[buf_ptr_m + 2] = (byte)(bb & 0xFF); bb >>= 8;
buffer[buf_ptr_m + 1] = (byte)(bb & 0xFF); bb >>= 8;
buffer[buf_ptr_m + 0] = (byte)(bb & 0xFF);
buf_ptr_m += 8;
}
// cannot do this in one shift, because bit_left_m can be 64,
//
bit_left_m += 64 - bits;
bit_buf_m = bit_left_m == 64 ? 0 : val << bit_left_m;
}
}
/// <summary>
/// Assumes there's enough space, buffer != null and bits is in range 1..31
/// </summary>
/// <param name="bits"></param>
/// <param name="val"></param>
// unsafe void writebits_fast(int bits, uint val, ref byte* buf)
// {
//#if DEBUG
// if ((buf_ptr + 3) >= buf_end)
// {
// eof = true;
// return;
// }
//#endif
// if (bits < bit_left)
// {
// bit_buf = (bit_buf << bits) | val;
// bit_left -= bits;
// }
// else
// {
// uint bb = (bit_buf << bit_left) | (val >> (bits - bit_left));
// bit_left += (32 - bits);
// *(buf++) = (byte)(bb >> 24);
// *(buf++) = (byte)(bb >> 16);
// *(buf++) = (byte)(bb >> 8);
// *(buf++) = (byte)(bb);
// bit_buf = val;
// }
// }
public void write_utf8(int val)
{
write_utf8((uint)val);
}
public void write_utf8(uint val)
{
if (val < 0x80)
{
writebits(8, val);
return;
}
int bytes = (BitReader.log2i(val) + 4) / 5;
int shift = (bytes - 1) * 6;
writebits(8, (256U - (256U >> bytes)) | (val >> shift));
while (shift >= 6)
{
shift -= 6;
writebits(8, 0x80 | ((val >> shift) & 0x3F));
}
}
public void write_unary_signed(int val)
{
// convert signed to unsigned
int v = -2 * val - 1;
v ^= (v >> 31);
// write quotient in unary
int q = v + 1;
while (q > 31)
{
writebits(31, 0);
q -= 31;
}
writebits(q, 1);
}
public void write_rice_signed(int k, int val)
{
// convert signed to unsigned
int v = -2 * val - 1;
v ^= (v >> 31);
// write quotient in unary
int q = (v >> k) + 1;
while (q + k > 31)
{
int b = Math.Min(q + k - 31, 31);
writebits(b, 0);
q -= b;
}
// write remainder in binary using 'k' bits
writebits(k + q, (v & ((1 << k) - 1)) | (1 << k));
}
public unsafe void write_rice_block_signed(byte* fixedbuf, int k, int* residual, int count)
{
byte* buf = &fixedbuf[buf_ptr_m];
ulong bit_buf = bit_buf_m;
int bit_left = bit_left_m;
ushort crc16 = crc16_m;
fixed (ushort *crc16_t = Crc16.table)
for (int i = count; i > 0; i--)
{
int vi = *(residual++);
uint v = (uint)((vi << 1) ^ (vi >> 31));
// write quotient in unary
int q = (int)(v >> k) + 1;
int bits = k + q;
while (bits > 64)
{
#if DEBUG
if (buf + 1 > fixedbuf + buf_end)
{
eof = true;
return;
}
#endif
crc16 = (ushort)((crc16 << 8) ^ crc16_t[(crc16 >> 8) ^ (*(buf++) = (byte)(bit_buf >> 56))]);
bit_buf <<= 8;
bits -= 8;
}
// write remainder in binary using 'k' bits
//writebits_fast(k + q, (uint)((v & ((1 << k) - 1)) | (1 << k)), ref buf);
ulong val = (uint)((v & ((1U << k) - 1)) | (1U << k));
if (bits < bit_left)
{
bit_left -= bits;
bit_buf |= val << bit_left;
}
else
{
ulong bb = bit_buf | (val >> (bits - bit_left));
#if DEBUG
if (buf + 8 > fixedbuf + buf_end)
{
eof = true;
return;
}
#endif
crc16 = (ushort)((crc16 << 8) ^ crc16_t[(crc16 >> 8) ^ (*(buf++) = (byte)(bb >> 56))]);
crc16 = (ushort)((crc16 << 8) ^ crc16_t[(crc16 >> 8) ^ (*(buf++) = (byte)(bb >> 48))]);
crc16 = (ushort)((crc16 << 8) ^ crc16_t[(crc16 >> 8) ^ (*(buf++) = (byte)(bb >> 40))]);
crc16 = (ushort)((crc16 << 8) ^ crc16_t[(crc16 >> 8) ^ (*(buf++) = (byte)(bb >> 32))]);
crc16 = (ushort)((crc16 << 8) ^ crc16_t[(crc16 >> 8) ^ (*(buf++) = (byte)(bb >> 24))]);
crc16 = (ushort)((crc16 << 8) ^ crc16_t[(crc16 >> 8) ^ (*(buf++) = (byte)(bb >> 16))]);
crc16 = (ushort)((crc16 << 8) ^ crc16_t[(crc16 >> 8) ^ (*(buf++) = (byte)(bb >> 8))]);
crc16 = (ushort)((crc16 << 8) ^ crc16_t[(crc16 >> 8) ^ (*(buf++) = (byte)(bb))]);
bit_left += 64 - bits;
bit_buf = (val << bit_left - 1) << 1;
}
}
crc16_m = crc16;
buf_ptr_m = (int)(buf - fixedbuf);
bit_buf_m = bit_buf;
bit_left_m = bit_left;
}
public void flush()
{
while (bit_left_m < 64 && !eof)
{
if (buf_ptr_m >= buf_end)
{
eof = true;
break;
}
if (buffer != null)
{
byte b = (byte)(bit_buf_m >> 56);
crc16_m = (ushort)((crc16_m << 8) ^ Crc16.table[(crc16_m >> 8) ^ b]);
buffer[buf_ptr_m] = b;
}
buf_ptr_m++;
bit_buf_m <<= 8;
bit_left_m += 8;
}
bit_left_m = 64;
bit_buf_m = 0;
}
}
}

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using System;
namespace CUETools.Codecs
{
public static class Crc16
{
const int GF2_DIM = 16;
public static ushort[] table = new ushort[256];
private static readonly ushort[,] combineTable = new ushort[GF2_DIM, GF2_DIM];
private static readonly ushort[,] substractTable = new ushort[GF2_DIM, GF2_DIM];
public static unsafe ushort ComputeChecksum(ushort crc, byte[] bytes, int pos, int count)
{
fixed (byte* bs = bytes)
return ComputeChecksum(crc, bs + pos, count);
}
public static unsafe ushort ComputeChecksum(ushort crc, byte* bytes, int count)
{
fixed (ushort* t = table)
for (int i = count; i > 0; i--)
{
crc = (ushort)((crc << 8) ^ t[(crc >> 8) ^ *(bytes++)]);
}
return crc;
}
const ushort polynomial = 0x8005;
const ushort reversePolynomial = 0x4003;
static unsafe Crc16()
{
for (ushort i = 0; i < table.Length; i++)
{
int crc = i;
for (int j = 0; j < GF2_DIM; j++)
{
if ((crc & (1U << (GF2_DIM - 1))) != 0)
crc = ((crc << 1) ^ polynomial);
else
crc <<= 1;
}
table[i] = (ushort)(crc & ((1 << GF2_DIM) - 1));
}
combineTable[0, 0] = Crc16.Reflect(polynomial);
substractTable[0, GF2_DIM - 1] = reversePolynomial;
for (int n = 1; n < GF2_DIM; n++)
{
combineTable[0, n] = (ushort)(1 << (n - 1));
substractTable[0, n - 1] = (ushort)(1 << n);
}
fixed (ushort* ct = &combineTable[0, 0], st = &substractTable[0, 0])
{
//for (int i = 0; i < GF2_DIM; i++)
// st[32 + i] = ct[i];
//invert_binary_matrix(st + 32, st, GF2_DIM);
for (int i = 1; i < GF2_DIM; i++)
{
gf2_matrix_square(ct + i * GF2_DIM, ct + (i - 1) * GF2_DIM);
gf2_matrix_square(st + i * GF2_DIM, st + (i - 1) * GF2_DIM);
}
}
}
private static unsafe ushort gf2_matrix_times(ushort* mat, ushort uvec)
{
int vec = ((int) uvec) << 16;
return (ushort)(
(*(mat++) & ((vec << 15) >> 31)) ^
(*(mat++) & ((vec << 14) >> 31)) ^
(*(mat++) & ((vec << 13) >> 31)) ^
(*(mat++) & ((vec << 12) >> 31)) ^
(*(mat++) & ((vec << 11) >> 31)) ^
(*(mat++) & ((vec << 10) >> 31)) ^
(*(mat++) & ((vec << 09) >> 31)) ^
(*(mat++) & ((vec << 08) >> 31)) ^
(*(mat++) & ((vec << 07) >> 31)) ^
(*(mat++) & ((vec << 06) >> 31)) ^
(*(mat++) & ((vec << 05) >> 31)) ^
(*(mat++) & ((vec << 04) >> 31)) ^
(*(mat++) & ((vec << 03) >> 31)) ^
(*(mat++) & ((vec << 02) >> 31)) ^
(*(mat++) & ((vec << 01) >> 31)) ^
(*(mat++) & (vec >> 31)));
}
private static unsafe void gf2_matrix_square(ushort* square, ushort* mat)
{
for (int n = 0; n < GF2_DIM; n++)
square[n] = gf2_matrix_times(mat, mat[n]);
}
public static ushort Reflect(ushort crc)
{
return (ushort)Crc32.Reflect(crc, 16);
}
public static unsafe ushort Combine(ushort crc1, ushort crc2, long len2)
{
crc1 = Crc16.Reflect(crc1);
crc2 = Crc16.Reflect(crc2);
/* degenerate case */
if (len2 == 0)
return crc1;
if (crc1 == 0)
return crc2;
if (len2 < 0)
throw new ArgumentException("crc.Combine length cannot be negative", "len2");
fixed (ushort* ct = &combineTable[0, 0])
{
int n = 3;
do
{
/* apply zeros operator for this bit of len2 */
if ((len2 & 1) != 0)
crc1 = gf2_matrix_times(ct + GF2_DIM * n, crc1);
len2 >>= 1;
n = (n + 1) & (GF2_DIM - 1);
/* if no more bits set, then done */
} while (len2 != 0);
}
/* return combined crc */
crc1 ^= crc2;
crc1 = Crc16.Reflect(crc1);
return crc1;
}
public static unsafe ushort Subtract(ushort crc1, ushort crc2, long len2)
{
crc1 = Crc16.Reflect(crc1);
crc2 = Crc16.Reflect(crc2);
/* degenerate case */
if (len2 == 0)
return crc1;
if (len2 < 0)
throw new ArgumentException("crc.Combine length cannot be negative", "len2");
crc1 ^= crc2;
fixed (ushort* st = &substractTable[0, 0])
{
int n = 3;
do
{
/* apply zeros operator for this bit of len2 */
if ((len2 & 1) != 0)
crc1 = gf2_matrix_times(st + GF2_DIM * n, crc1);
len2 >>= 1;
n = (n + 1) & (GF2_DIM - 1);
/* if no more bits set, then done */
} while (len2 != 0);
}
/* return combined crc */
crc1 = Crc16.Reflect(crc1);
return crc1;
}
}
}

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namespace CUETools.Codecs
{
public enum InitialCrcValue { Zeros, NonZero1 = 0xffff, NonZero2 = 0x1D0F }
public class Crc16Ccitt
{
const ushort poly = 4129;
ushort[] table = new ushort[256];
ushort initialValue = 0;
public ushort ComputeChecksum(byte[] bytes, int pos, int count)
{
ushort crc = this.initialValue;
for (int i = pos; i < pos + count; i++)
{
crc = (ushort)((crc << 8) ^ table[((crc >> 8) ^ (0xff & bytes[i]))]);
}
return crc;
}
public byte[] ComputeChecksumBytes(byte[] bytes, int pos, int count)
{
ushort crc = ComputeChecksum(bytes, pos, count);
return new byte[] { (byte)(crc >> 8), (byte)(crc & 0x00ff) };
}
public Crc16Ccitt(InitialCrcValue initialValue)
{
this.initialValue = (ushort)initialValue;
ushort temp, a;
for (int i = 0; i < table.Length; i++)
{
temp = 0;
a = (ushort)(i << 8);
for (int j = 0; j < 8; j++)
{
if (((temp ^ a) & 0x8000) != 0)
{
temp = (ushort)((temp << 1) ^ poly);
}
else
{
temp <<= 1;
}
a <<= 1;
}
table[i] = temp;
}
}
}
}

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using System;
namespace CUETools.Codecs
{
public static class Crc32
{
public static readonly uint[] table;
public static uint ComputeChecksum(uint crc, byte val)
{
return (crc >> 8) ^ table[(crc & 0xff) ^ val];
}
public static unsafe uint ComputeChecksum(uint crc, byte* bytes, int count)
{
fixed (uint *t = table)
for (int i = 0; i < count; i++)
crc = (crc >> 8) ^ t[(crc ^ bytes[i]) & 0xff];
return crc;
}
public static unsafe uint ComputeChecksum(uint crc, byte[] bytes, int pos, int count)
{
fixed (byte* pbytes = &bytes[pos])
return ComputeChecksum(crc, pbytes, count);
}
public static uint ComputeChecksum(uint crc, uint s)
{
return ComputeChecksum(ComputeChecksum(ComputeChecksum(ComputeChecksum(
crc, (byte)s), (byte)(s >> 8)), (byte)(s >> 16)), (byte)(s >> 24));
}
public static unsafe uint ComputeChecksum(uint crc, int* samples, int count)
{
for (int i = 0; i < count; i++)
{
int s1 = samples[2 * i], s2 = samples[2 * i + 1];
crc = ComputeChecksum(ComputeChecksum(ComputeChecksum(ComputeChecksum(
crc, (byte)s1), (byte)(s1 >> 8)), (byte)s2), (byte)(s2 >> 8));
}
return crc;
}
internal static uint Reflect(uint val, int ch)
{
uint value = 0;
// Swap bit 0 for bit 7
// bit 1 for bit 6, etc.
for (int i = 1; i < (ch + 1); i++)
{
if (0 != (val & 1))
value |= 1U << (ch - i);
val >>= 1;
}
return value;
}
const uint uPolynomial = 0x04c11db7;
const uint uReversePolynomial = 0xedb88320;
const uint uReversePolynomial2 = 0xdb710641;
private static readonly uint[,] combineTable;
private static readonly uint[,] substractTable;
#if need_invert_binary_matrix
static unsafe void invert_binary_matrix(uint* mat, uint* inv, int rows)
{
int cols, i, j;
uint tmp;
cols = rows;
for (i = 0; i < rows; i++) inv[i] = (1U << i);
/* First -- convert into upper triangular */
for (i = 0; i < cols; i++)
{
/* Swap rows if we ave a zero i,i element. If we can't swap, then the
matrix was not invertible */
if ((mat[i] & (1 << i)) == 0)
{
for (j = i + 1; j < rows && (mat[j] & (1 << i)) == 0; j++) ;
if (j == rows)
throw new Exception("Matrix not invertible");
tmp = mat[i]; mat[i] = mat[j]; mat[j] = tmp;
tmp = inv[i]; inv[i] = inv[j]; inv[j] = tmp;
}
/* Now for each j>i, add A_ji*Ai to Aj */
for (j = i + 1; j != rows; j++)
{
if ((mat[j] & (1 << i)) != 0)
{
mat[j] ^= mat[i];
inv[j] ^= inv[i];
}
}
}
/* Now the matrix is upper triangular. Start at the top and multiply down */
for (i = rows - 1; i >= 0; i--)
{
for (j = 0; j < i; j++)
{
if ((mat[j] & (1 << i)) != 0)
{
/* mat[j] ^= mat[i]; */
inv[j] ^= inv[i];
}
}
}
}
#endif
static unsafe Crc32()
{
table = new uint[256];
for (uint i = 0; i < table.Length; i++)
{
table[i] = Reflect(i, 8) << 24;
for (int j = 0; j < 8; j++)
table[i] = (table[i] << 1) ^ ((table[i] & (1U << 31)) == 0 ? 0 : uPolynomial);
table[i] = Reflect(table[i], 32);
}
combineTable = new uint[GF2_DIM, GF2_DIM];
substractTable = new uint[GF2_DIM, GF2_DIM];
combineTable[0, 0] = uReversePolynomial;
substractTable[0, 31] = uReversePolynomial2;
for (int n = 1; n < GF2_DIM; n++)
{
combineTable[0, n] = 1U << (n - 1);
substractTable[0, n - 1] = 1U << n;
}
fixed (uint* ct = &combineTable[0, 0], st = &substractTable[0, 0])
{
//for (int i = 0; i < GF2_DIM; i++)
// st[32 + i] = ct[i];
//invert_binary_matrix(st + 32, st, GF2_DIM);
for (int i = 1; i < GF2_DIM; i++)
{
gf2_matrix_square(ct + i * 32, ct + (i - 1) * 32);
gf2_matrix_square(st + i * 32, st + (i - 1) * 32);
}
}
}
const int GF2_DIM = 32;
//const int GF2_DIM2 = 67;
private static unsafe uint gf2_matrix_times(uint* umat, uint uvec)
{
int vec = (int)uvec;
int* mat = (int*)umat;
return (uint)(
(*(mat++) & ((vec << 31) >> 31)) ^
(*(mat++) & ((vec << 30) >> 31)) ^
(*(mat++) & ((vec << 29) >> 31)) ^
(*(mat++) & ((vec << 28) >> 31)) ^
(*(mat++) & ((vec << 27) >> 31)) ^
(*(mat++) & ((vec << 26) >> 31)) ^
(*(mat++) & ((vec << 25) >> 31)) ^
(*(mat++) & ((vec << 24) >> 31)) ^
(*(mat++) & ((vec << 23) >> 31)) ^
(*(mat++) & ((vec << 22) >> 31)) ^
(*(mat++) & ((vec << 21) >> 31)) ^
(*(mat++) & ((vec << 20) >> 31)) ^
(*(mat++) & ((vec << 19) >> 31)) ^
(*(mat++) & ((vec << 18) >> 31)) ^
(*(mat++) & ((vec << 17) >> 31)) ^
(*(mat++) & ((vec << 16) >> 31)) ^
(*(mat++) & ((vec << 15) >> 31)) ^
(*(mat++) & ((vec << 14) >> 31)) ^
(*(mat++) & ((vec << 13) >> 31)) ^
(*(mat++) & ((vec << 12) >> 31)) ^
(*(mat++) & ((vec << 11) >> 31)) ^
(*(mat++) & ((vec << 10) >> 31)) ^
(*(mat++) & ((vec << 09) >> 31)) ^
(*(mat++) & ((vec << 08) >> 31)) ^
(*(mat++) & ((vec << 07) >> 31)) ^
(*(mat++) & ((vec << 06) >> 31)) ^
(*(mat++) & ((vec << 05) >> 31)) ^
(*(mat++) & ((vec << 04) >> 31)) ^
(*(mat++) & ((vec << 03) >> 31)) ^
(*(mat++) & ((vec << 02) >> 31)) ^
(*(mat++) & ((vec << 01) >> 31)) ^
(*(mat++) & (vec >> 31)));
}
/* ========================================================================= */
private static unsafe void gf2_matrix_square(uint *square, uint *mat)
{
for (int n = 0; n < GF2_DIM; n++)
square[n] = gf2_matrix_times(mat, mat[n]);
}
public static unsafe uint Combine(uint crc1, uint crc2, long len2)
{
/* degenerate case */
if (len2 == 0)
return crc1;
if (crc1 == 0)
return crc2;
if (len2 < 0)
throw new ArgumentException("crc.Combine length cannot be negative", "len2");
fixed (uint* ct = &combineTable[0, 0])
{
int n = 3;
do
{
/* apply zeros operator for this bit of len2 */
if ((len2 & 1) != 0)
crc1 = gf2_matrix_times(ct + 32 * n, crc1);
len2 >>= 1;
n = (n + 1) & (GF2_DIM - 1);
/* if no more bits set, then done */
} while (len2 != 0);
}
/* return combined crc */
crc1 ^= crc2;
return crc1;
}
public static unsafe uint Subtract(uint crc1, uint crc2, long len2)
{
/* degenerate case */
if (len2 == 0)
return crc1;
if (len2 < 0)
throw new ArgumentException("crc.Combine length cannot be negative", "len2");
crc1 ^= crc2;
fixed (uint* st = &substractTable[0, 0])
{
int n = 3;
do
{
/* apply zeros operator for this bit of len2 */
if ((len2 & 1) != 0)
crc1 = gf2_matrix_times(st + 32 * n, crc1);
len2 >>= 1;
n = (n + 1) & (GF2_DIM - 1);
/* if no more bits set, then done */
} while (len2 != 0);
}
/* return combined crc */
return crc1;
}
}
}

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Aaru.Compression/cuetools.net/CUETools.Codecs/CRC/CRC8.cs Normal file
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namespace CUETools.Codecs
{
public class Crc8
{
private const ushort poly8 = 0x07;
private ushort[] table = new ushort[256];
public Crc8()
{
int bits = 8;
ushort poly = (ushort) (poly8 + (1U << bits));
for (ushort i = 0; i < table.Length; i++)
{
ushort crc = i;
for (int j = 0; j < bits; j++)
{
if ((crc & (1U << (bits - 1))) != 0)
crc = (ushort)((crc << 1) ^ poly);
else
crc <<= 1;
}
table[i] = (ushort)(crc & 0x00ff);
}
}
public byte ComputeChecksum(byte[] bytes, int pos, int count)
{
ushort crc = 0;
for (int i = pos; i < pos + count; i++)
crc = table[crc ^ bytes[i]];
return (byte)crc;
}
public unsafe byte ComputeChecksum(byte* bytes, int pos, int count)
{
ushort crc = 0;
for (int i = pos; i < pos + count; i++)
crc = table[crc ^ bytes[i]];
return (byte)crc;
}
}
}

23
Aaru.Compression/cuetools.net/CUETools.Codecs/CUETools.Codecs.csproj Normal file
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<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>netstandard2.0</TargetFramework>
<Version>2.1.9.0</Version>
<AssemblyName>CUETools.Codecs</AssemblyName>
<RootNamespace>CUETools.Codecs</RootNamespace>
<Product>CUETools</Product>
<Description>A library for encoding and decoding audio.</Description>
<Copyright>Copyright (c) 2008-2021 Grigory Chudov</Copyright>
<Authors>Grigory Chudov</Authors>
<AllowUnsafeBlocks>true</AllowUnsafeBlocks>
<OutputPath>..\bin\$(Configuration)\</OutputPath>
<RepositoryUrl>https://github.com/gchudov/cuetools.net</RepositoryUrl>
<RepositoryType>git</RepositoryType>
<Company />
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Newtonsoft.Json" Version="11.0.1" />
</ItemGroup>
</Project>

94
Aaru.Compression/cuetools.net/CUETools.Codecs/CUEToolsCodecsConfig.cs Normal file
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using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.IO;
using System.Net;
using System.Text;
using System.Threading;
using System.Xml;
using System.Xml.Serialization;
namespace CUETools.Codecs
{
public class CUEToolsCodecsConfig
{
[JsonIgnore]
public Dictionary<string, CUEToolsFormat> formats;
public List<IAudioEncoderSettings> encoders;
public List<IAudioDecoderSettings> decoders;
[JsonIgnore]
public EncoderListViewModel encodersViewModel;
[JsonIgnore]
public DecoderListViewModel decodersViewModel;
public CUEToolsCodecsConfig()
{
encoders = new List<IAudioEncoderSettings>();
decoders = new List<IAudioDecoderSettings>();
encodersViewModel = new EncoderListViewModel(encoders);
decodersViewModel = new DecoderListViewModel(decoders);
formats = new Dictionary<string, CUEToolsFormat>();
}
public CUEToolsCodecsConfig(CUEToolsCodecsConfig src)
{
encoders = new List<IAudioEncoderSettings>();
decoders = new List<IAudioDecoderSettings>();
src.encoders.ForEach(item => encoders.Add(item.Clone()));
src.decoders.ForEach(item => decoders.Add(item.Clone()));
encodersViewModel = new EncoderListViewModel(encoders);
decodersViewModel = new DecoderListViewModel(decoders);
formats = new Dictionary<string, CUEToolsFormat>();
foreach (var fmt in src.formats)
formats.Add(fmt.Key, fmt.Value.Clone(this));
}
public void Init(List<IAudioEncoderSettings> src_encoders, List<IAudioDecoderSettings> src_decoders)
{
encoders = new List<IAudioEncoderSettings>();
decoders = new List<IAudioDecoderSettings>();
src_encoders.ForEach(item => encoders.Add(item.Clone()));
src_decoders.ForEach(item => decoders.Add(item.Clone()));
if (Type.GetType("Mono.Runtime", false) == null)
{
encoders.Add(new CommandLine.EncoderSettings("flake.exe", "flac", true, "0 1 2 3 4 5 6 7 8 9 10 11 12", "8", "flake.exe", "-%M - -o %O -p %P"));
encoders.Add(new CommandLine.EncoderSettings("takc.exe", "tak", true, "0 1 2 2e 2m 3 3e 3m 4 4e 4m", "2", "takc.exe", "-e -p%M -overwrite - %O"));
encoders.Add(new CommandLine.EncoderSettings("ffmpeg.exe", "m4a", true, "", "", "ffmpeg.exe", "-i - -f ipod -acodec alac -y %O"));
encoders.Add(new CommandLine.EncoderSettings("lame.exe (VBR)", "mp3", false, "V9 V8 V7 V6 V5 V4 V3 V2 V1 V0", "V2", "lame.exe", "--vbr-new -%M - %O"));
encoders.Add(new CommandLine.EncoderSettings("lame.exe (CBR)", "mp3", false, "96 128 192 256 320", "256", "lame.exe", "-m s -q 0 -b %M --noreplaygain - %O"));
encoders.Add(new CommandLine.EncoderSettings("oggenc.exe", "ogg", false, "-1 -0.5 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5 8", "3", "oggenc.exe", "-q %M - -o %O"));
encoders.Add(new CommandLine.EncoderSettings("opusenc.exe", "opus", false, "6 16 32 48 64 96 128 192 256", "128", "opusenc.exe", "--bitrate %M - %O"));
encoders.Add(new CommandLine.EncoderSettings("neroAacEnc.exe", "m4a", false, "0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9", "0.4", "neroAacEnc.exe", "-q %M -if - -of %O"));
encoders.Add(new CommandLine.EncoderSettings("qaac.exe (tvbr)", "m4a", false, "10 20 30 40 50 60 70 80 90 100 110 127", "80", "qaac.exe", "-s -V %M -q 2 - -o %O"));
decoders.Add(new CommandLine.DecoderSettings("takc.exe", "tak", "takc.exe", "-d %I -"));
decoders.Add(new CommandLine.DecoderSettings("ffmpeg.exe", "m4a", "ffmpeg.exe", "-v 0 -i %I -f wav -"));
}
else
{
// !!!
}
encodersViewModel = new EncoderListViewModel(encoders);
decodersViewModel = new DecoderListViewModel(decoders);
formats = new Dictionary<string, CUEToolsFormat>();
formats.Add("flac", new CUEToolsFormat("flac", CUEToolsTagger.TagLibSharp, true, false, true, true, encodersViewModel.GetDefault("flac", true), null, decodersViewModel.GetDefault("flac")));
formats.Add("wv", new CUEToolsFormat("wv", CUEToolsTagger.TagLibSharp, true, false, true, true, encodersViewModel.GetDefault("wv", true), null, decodersViewModel.GetDefault("wv")));
formats.Add("ape", new CUEToolsFormat("ape", CUEToolsTagger.TagLibSharp, true, false, true, true, encodersViewModel.GetDefault("ape", true), null, decodersViewModel.GetDefault("ape")));
formats.Add("tta", new CUEToolsFormat("tta", CUEToolsTagger.APEv2, true, false, false, true, encodersViewModel.GetDefault("tta", true), null, decodersViewModel.GetDefault("tta")));
formats.Add("m2ts", new CUEToolsFormat("m2ts", CUEToolsTagger.APEv2, true, false, false, true, null, null, decodersViewModel.GetDefault("m2ts")));
formats.Add("mpls", new CUEToolsFormat("mpls", CUEToolsTagger.APEv2, true, false, false, true, null, null, decodersViewModel.GetDefault("mpls")));
formats.Add("wav", new CUEToolsFormat("wav", CUEToolsTagger.TagLibSharp, true, false, false, true, encodersViewModel.GetDefault("wav", true), null, decodersViewModel.GetDefault("wav")));
formats.Add("m4a", new CUEToolsFormat("m4a", CUEToolsTagger.TagLibSharp, true, true, false, true, encodersViewModel.GetDefault("m4a", true), encodersViewModel.GetDefault("m4a", false), decodersViewModel.GetDefault("m4a")));
formats.Add("tak", new CUEToolsFormat("tak", CUEToolsTagger.APEv2, true, false, true, true, encodersViewModel.GetDefault("tak", true), null, decodersViewModel.GetDefault("tak")));
formats.Add("wma", new CUEToolsFormat("wma", CUEToolsTagger.TagLibSharp, true, true, false, true, encodersViewModel.GetDefault("wma", true), encodersViewModel.GetDefault("wma", false), decodersViewModel.GetDefault("wma")));
formats.Add("mp3", new CUEToolsFormat("mp3", CUEToolsTagger.TagLibSharp, false, true, false, true, null, encodersViewModel.GetDefault("mp3", false), null));
formats.Add("ogg", new CUEToolsFormat("ogg", CUEToolsTagger.TagLibSharp, false, true, false, true, null, encodersViewModel.GetDefault("ogg", false), null));
formats.Add("opus", new CUEToolsFormat("opus", CUEToolsTagger.TagLibSharp, false, true, false, true, null, encodersViewModel.GetDefault("opus", false), null));
formats.Add("mlp", new CUEToolsFormat("mlp", CUEToolsTagger.APEv2, true, false, false, false, null, null, decodersViewModel.GetDefault("mlp")));
formats.Add("aob", new CUEToolsFormat("aob", CUEToolsTagger.APEv2, true, false, false, false, null, null, decodersViewModel.GetDefault("aob")));
}
}
}

55
Aaru.Compression/cuetools.net/CUETools.Codecs/CUEToolsFormat.cs Normal file
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namespace CUETools.Codecs
{
public class CUEToolsFormat
{
public CUEToolsFormat(
string _extension,
CUEToolsTagger _tagger,
bool _allowLossless,
bool _allowLossy,
bool _allowEmbed,
bool _builtin,
AudioEncoderSettingsViewModel _encoderLossless,
AudioEncoderSettingsViewModel _encoderLossy,
AudioDecoderSettingsViewModel _decoder)
{
extension = _extension;
tagger = _tagger;
allowLossless = _allowLossless;
allowLossy = _allowLossy;
allowEmbed = _allowEmbed;
builtin = _builtin;
encoderLossless = _encoderLossless;
encoderLossy = _encoderLossy;
decoder = _decoder;
}
public string DotExtension
{
get
{
return "." + extension;
}
}
public CUEToolsFormat Clone(CUEToolsCodecsConfig cfg)
{
var res = this.MemberwiseClone() as CUEToolsFormat;
if (decoder != null) cfg.decodersViewModel.TryGetValue(decoder.Settings.Extension, decoder.Settings.Name, out res.decoder);
if (encoderLossy != null) cfg.encodersViewModel.TryGetValue(encoderLossy.Settings.Extension, encoderLossy.Lossless, encoderLossy.Settings.Name, out res.encoderLossy);
if (encoderLossless != null) cfg.encodersViewModel.TryGetValue(encoderLossless.Settings.Extension, encoderLossless.Lossless, encoderLossless.Settings.Name, out res.encoderLossless);
return res;
}
public override string ToString()
{
return extension;
}
public string extension;
public AudioEncoderSettingsViewModel encoderLossless;
public AudioEncoderSettingsViewModel encoderLossy;
public AudioDecoderSettingsViewModel decoder;
public CUEToolsTagger tagger;
public bool allowLossless, allowLossy, allowEmbed, builtin;
}
}

9
Aaru.Compression/cuetools.net/CUETools.Codecs/CUEToolsTagger.cs Normal file
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namespace CUETools.Codecs
{
public enum CUEToolsTagger
{
TagLibSharp = 0,
APEv2 = 1,
ID3v2 = 2,
}
}

121
Aaru.Compression/cuetools.net/CUETools.Codecs/CommandLine/AudioDecoder.cs Normal file
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using System;
using System.Diagnostics;
using System.IO;
namespace CUETools.Codecs.CommandLine
{
public class AudioDecoder : IAudioSource
{
string _path;
Process _decoderProcess;
WAV.AudioDecoder rdr;
private DecoderSettings m_settings;
public IAudioDecoderSettings Settings => m_settings;
public long Position
{
get
{
Initialize();
return rdr.Position;
}
set
{
Initialize();
rdr.Position = value;
}
}
public TimeSpan Duration
{
get
{
Initialize();
return rdr.Duration;
}
}
public long Length
{
get
{
Initialize();
return rdr.Length;
}
}
public long Remaining
{
get
{
Initialize();
return rdr.Remaining;
}
}
public AudioPCMConfig PCM
{
get
{
Initialize();
return rdr.PCM;
}
}
public string Path { get { return _path; } }
public AudioDecoder(DecoderSettings settings, string path, Stream IO)
{
m_settings = settings;
_path = path;
_decoderProcess = null;
rdr = null;
}
void Initialize()
{
if (_decoderProcess != null)
return;
_decoderProcess = new Process();
_decoderProcess.StartInfo.FileName = m_settings.Path;
_decoderProcess.StartInfo.Arguments = m_settings.Parameters.Replace("%I", "\"" + _path + "\"");
_decoderProcess.StartInfo.CreateNoWindow = true;
_decoderProcess.StartInfo.RedirectStandardOutput = true;
_decoderProcess.StartInfo.UseShellExecute = false;
bool started = false;
Exception ex = null;
try
{
started = _decoderProcess.Start();
if (started)
_decoderProcess.PriorityClass = Process.GetCurrentProcess().PriorityClass;
}
catch (Exception _ex)
{
ex = _ex;
}
if (!started)
{
_decoderProcess = null;
throw new Exception(m_settings.Path + ": " + (ex == null ? "please check the path" : ex.Message));
}
rdr = new WAV.AudioDecoder(new WAV.DecoderSettings(), _path, _decoderProcess.StandardOutput.BaseStream);
}
public void Close()
{
if (rdr != null)
rdr.Close();
if (_decoderProcess != null && !_decoderProcess.HasExited)
try { _decoderProcess.Kill(); _decoderProcess.WaitForExit(); }
catch { }
}
public int Read(AudioBuffer buff, int maxLength)
{
Initialize();
return rdr.Read(buff, maxLength);
}
}
}

137
Aaru.Compression/cuetools.net/CUETools.Codecs/CommandLine/AudioEncoder.cs Normal file
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using System;
using System.Diagnostics;
using System.IO;
namespace CUETools.Codecs.CommandLine
{
public class AudioEncoder : IAudioDest
{
string _path;
Process _encoderProcess;
WAV.AudioEncoder wrt;
CyclicBuffer outputBuffer = null;
bool useTempFile = false;
string tempFile = null;
long _finalSampleCount = -1;
bool closed = false;
public long Position
{
get
{
return wrt.Position;
}
}
public long FinalSampleCount
{
set { _finalSampleCount = wrt.FinalSampleCount = value; }
}
// !!!! Must not start the process in constructor, so that we can set CompressionLevel via Settings!
private EncoderSettings m_settings;
public IAudioEncoderSettings Settings => m_settings;
public string Path { get { return _path; } }
public AudioEncoder(EncoderSettings settings, string path, Stream IO = null)
{
m_settings = settings;
_path = path;
useTempFile = m_settings.Parameters.Contains("%I");
tempFile = path + ".tmp.wav";
_encoderProcess = new Process();
_encoderProcess.StartInfo.FileName = m_settings.Path;
_encoderProcess.StartInfo.Arguments = m_settings.Parameters.Replace("%O", "\"" + path + "\"").Replace("%M", m_settings.EncoderMode).Replace("%P", m_settings.Padding.ToString()).Replace("%I", "\"" + tempFile + "\"");
_encoderProcess.StartInfo.CreateNoWindow = true;
if (!useTempFile)
_encoderProcess.StartInfo.RedirectStandardInput = true;
_encoderProcess.StartInfo.UseShellExecute = false;
if (!m_settings.Parameters.Contains("%O"))
_encoderProcess.StartInfo.RedirectStandardOutput = true;
if (useTempFile)
{
wrt = new WAV.AudioEncoder(new WAV.EncoderSettings(settings.PCM), tempFile);
return;
}
bool started = false;
Exception ex = null;
try
{
started = _encoderProcess.Start();
if (started)
_encoderProcess.PriorityClass = Process.GetCurrentProcess().PriorityClass;
}
catch (Exception _ex)
{
ex = _ex;
}
if (!started)
throw new Exception(m_settings.Path + ": " + (ex == null ? "please check the path" : ex.Message));
if (_encoderProcess.StartInfo.RedirectStandardOutput)
{
Stream outputStream = new FileStream(path, FileMode.Create, FileAccess.Write, FileShare.Read);
outputBuffer = new CyclicBuffer(2 * 1024 * 1024, _encoderProcess.StandardOutput.BaseStream, outputStream);
}
Stream inputStream = new CyclicBufferOutputStream(_encoderProcess.StandardInput.BaseStream, 128 * 1024);
wrt = new WAV.AudioEncoder(new WAV.EncoderSettings(settings.PCM), path, inputStream);
}
public void Close()
{
if (closed)
return;
closed = true;
wrt.Close();
if (useTempFile && (_finalSampleCount < 0 || wrt.Position == _finalSampleCount))
{
bool started = false;
Exception ex = null;
try
{
started = _encoderProcess.Start();
if (started)
_encoderProcess.PriorityClass = Process.GetCurrentProcess().PriorityClass;
}
catch (Exception _ex)
{
ex = _ex;
}
if (!started)
throw new Exception(m_settings.Path + ": " + (ex == null ? "please check the path" : ex.Message));
}
wrt = null;
if (!_encoderProcess.HasExited)
_encoderProcess.WaitForExit();
if (useTempFile)
File.Delete(tempFile);
if (outputBuffer != null)
outputBuffer.Close();
if (_encoderProcess.ExitCode != 0)
throw new Exception(String.Format("{0} returned error code {1}", m_settings.Path, _encoderProcess.ExitCode));
}
public void Delete()
{
Close();
File.Delete(_path);
}
public void Write(AudioBuffer buff)
{
try
{
wrt.Write(buff);
}
catch (IOException ex)
{
if (_encoderProcess.HasExited)
throw new IOException(string.Format("{0} has exited prematurely with code {1}", m_settings.Path, _encoderProcess.ExitCode), ex);
else
throw ex;
}
//_sampleLen += sampleCount;
}
}
}

67
Aaru.Compression/cuetools.net/CUETools.Codecs/CommandLine/DecoderSettings.cs Normal file
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using System;
using System.Collections.Generic;
using System.Text;
using System.ComponentModel;
using Newtonsoft.Json;
namespace CUETools.Codecs.CommandLine
{
[JsonObject(MemberSerialization.OptIn)]
public class DecoderSettings : IAudioDecoderSettings
{
#region IAudioDecoderSettings implementation
[DefaultValue("")]
[JsonProperty]
public string Name { get; set; }
[DefaultValue("")]
[JsonProperty]
public string Extension { get; set; }
[Browsable(false)]
public Type DecoderType => typeof(AudioDecoder);
[Browsable(false)]
public int Priority => 2;
public IAudioDecoderSettings Clone()
{
return MemberwiseClone() as IAudioDecoderSettings;
}
#endregion
public DecoderSettings()
{
this.Init();
}
public DecoderSettings(
string name,
string extension,
string path,
string parameters)
: base()
{
Name = name;
Extension = extension;
Path = path;
Parameters = parameters;
}
[DefaultValue("")]
[JsonProperty]
public string Path
{
get;
set;
}
[DefaultValue("")]
[JsonProperty]
public string Parameters
{
get;
set;
}
}
}

98
Aaru.Compression/cuetools.net/CUETools.Codecs/CommandLine/EncoderSettings.cs Normal file
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using System;
using System.Collections.Generic;
using System.Text;
using System.ComponentModel;
using Newtonsoft.Json;
namespace CUETools.Codecs.CommandLine
{
[JsonObject(MemberSerialization.OptIn)]
public class EncoderSettings : IAudioEncoderSettings
{
#region IAudioEncoderSettings implementation
[DefaultValue("")]
[JsonProperty]
public string Name { get; set; }
[DefaultValue("")]
[JsonProperty]
public string Extension { get; set; }
[Browsable(false)]
public Type EncoderType => typeof(AudioEncoder);
[JsonProperty]
public bool Lossless { get; set; }
[Browsable(false)]
public int Priority => 0;
[DefaultValue("")]
[JsonProperty]
public string SupportedModes { get; set; }
public string DefaultMode => EncoderMode;
[Browsable(false)]
[DefaultValue("")]
[JsonProperty]
public string EncoderMode { get; set; }
[Browsable(false)]
public AudioPCMConfig PCM { get; set; }
[Browsable(false)]
public int BlockSize { get; set; }
[Browsable(false)]
[DefaultValue(4096)]
public int Padding { get; set; }
public IAudioEncoderSettings Clone()
{
return MemberwiseClone() as IAudioEncoderSettings;
}
#endregion
public EncoderSettings()
{
this.Init();
}
public EncoderSettings(
string name,
string extension,
bool lossless,
string supportedModes,
string defaultMode,
string path,
string parameters
)
{
this.Init();
Name = name;
Extension = extension;
Lossless = lossless;
SupportedModes = supportedModes;
Path = path;
EncoderMode = defaultMode;
Parameters = parameters;
}
[DefaultValue("")]
[JsonProperty]
public string Path
{
get;
set;
}
[DefaultValue("")]
[JsonProperty]
public string Parameters
{
get;
set;
}
}
}

231
Aaru.Compression/cuetools.net/CUETools.Codecs/CyclicBuffer.cs Normal file
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using System;
using System.IO;
using System.Threading;
namespace CUETools.Codecs
{
public class CyclicBuffer
{
private byte[] _buffer;
private int _size;
private int _start = 0; // moved only by Write
private int _end = 0; // moved only by Read
private bool _eof = false;
private Thread _readThread = null, _writeThread = null;
private Exception _ex = null;
private int DataAvailable
{
get
{
return _end - _start;
}
}
private int FreeSpace
{
get
{
return _size - DataAvailable;
}
}
public CyclicBuffer(int len)
{
_size = len;
_buffer = new byte[len];
}
public CyclicBuffer(int len, Stream input, Stream output)
{
_size = len;
_buffer = new byte[len];
ReadFrom(input);
WriteTo(output);
}
public void ReadFrom(Stream input)
{
_readThread = new Thread(PumpRead);
_readThread.Priority = ThreadPriority.Highest;
_readThread.IsBackground = true;
_readThread.Start(input);
}
public void WriteTo(Stream output)
{
WriteTo(flushOutputToStream, closeOutputToStream, ThreadPriority.Highest, output);
}
public void WriteTo(FlushOutput flushOutputDelegate, CloseOutput closeOutputDelegate, ThreadPriority priority, object to)
{
if (flushOutputDelegate != null)
flushOutput += flushOutputDelegate;
if (closeOutputDelegate != null)
closeOutput += closeOutputDelegate;
_writeThread = new Thread(FlushThread);
_writeThread.Priority = priority;
_writeThread.IsBackground = true;
_writeThread.Start(to);
}
private void closeOutputToStream(object to)
{
((Stream)to).Close();
}
private void flushOutputToStream(byte[] buffer, int pos, int chunk, object to)
{
((Stream)to).Write(buffer, pos, chunk);
}
private void PumpRead(object o)
{
while (Read((Stream)o))
;
SetEOF();
}
public void Close()
{
if (_readThread != null)
{
_readThread.Join();
_readThread = null;
}
SetEOF();
if (_writeThread != null)
{
_writeThread.Join();
_writeThread = null;
}
}
public void SetEOF()
{
lock (this)
{
_eof = true;
Monitor.Pulse(this);
}
}
public bool Read(Stream input)
{
int pos, chunk;
lock (this)
{
while (FreeSpace == 0 && _ex == null)
Monitor.Wait(this);
if (_ex != null)
throw _ex;
pos = _end % _size;
chunk = Math.Min(FreeSpace, _size - pos);
}
chunk = input.Read(_buffer, pos, chunk);
if (chunk == 0)
return false;
lock (this)
{
_end += chunk;
Monitor.Pulse(this);
}
return true;
}
public void Read(byte[] array, int offset, int count)
{
int pos, chunk;
while (count > 0)
{
lock (this)
{
while (FreeSpace == 0 && _ex == null)
Monitor.Wait(this);
if (_ex != null)
throw _ex;
pos = _end % _size;
chunk = Math.Min(FreeSpace, _size - pos);
chunk = Math.Min(chunk, count);
}
Array.Copy(array, offset, _buffer, pos, chunk);
lock (this)
{
_end += chunk;
Monitor.Pulse(this);
}
count -= chunk;
offset += chunk;
}
}
public void Write(byte[] buff, int offs, int count)
{
while (count > 0)
{
int pos, chunk;
lock (this)
{
while (DataAvailable == 0 && !_eof)
Monitor.Wait(this);
if (DataAvailable == 0)
break;
pos = _start % _size;
chunk = Math.Min(DataAvailable, _size - pos);
}
if (flushOutput != null)
Array.Copy(_buffer, pos, buff, offs, chunk);
offs += chunk;
lock (this)
{
_start += chunk;
Monitor.Pulse(this);
}
}
}
private void FlushThread(object to)
{
while (true)
{
int pos, chunk;
lock (this)
{
while (DataAvailable == 0 && !_eof)
Monitor.Wait(this);
if (DataAvailable == 0)
break;
pos = _start % _size;
chunk = Math.Min(DataAvailable, _size - pos);
}
if (flushOutput != null)
try
{
flushOutput(_buffer, pos, chunk, to);
}
catch (Exception ex)
{
lock (this)
{
_ex = ex;
Monitor.Pulse(this);
return;
}
}
lock (this)
{
_start += chunk;
Monitor.Pulse(this);
}
}
if (closeOutput != null)
closeOutput(to);
}
public delegate void FlushOutput(byte[] buffer, int pos, int chunk, object to);
public delegate void CloseOutput(object to);
public event FlushOutput flushOutput;
public event CloseOutput closeOutput;
}
}

75
Aaru.Compression/cuetools.net/CUETools.Codecs/CyclicBufferInputStream.cs Normal file
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using System;
using System.IO;
namespace CUETools.Codecs
{
public class CyclicBufferInputStream : Stream
{
private CyclicBuffer _buffer;
public override bool CanRead
{
get { return true; }
}
public override bool CanSeek
{
get { return false; }
}
public override bool CanWrite
{
get { return false; }
}
public override long Length
{
get
{
throw new NotSupportedException();
}
}
public override long Position
{
get { throw new NotSupportedException(); }
set { throw new NotSupportedException(); }
}
public CyclicBufferInputStream(CyclicBuffer buffer)
{
_buffer = buffer;
}
public override void Close()
{
_buffer.Close();
}
public override void Flush()
{
throw new NotSupportedException();
}
public override void SetLength(long value)
{
throw new NotSupportedException();
}
public override int Read(byte[] array, int offset, int count)
{
_buffer.Write(array, offset, count);
return count;
}
public override long Seek(long offset, SeekOrigin origin)
{
throw new NotSupportedException();
}
public override void Write(byte[] array, int offset, int count)
{
throw new NotSupportedException();
}
}
}

80
Aaru.Compression/cuetools.net/CUETools.Codecs/CyclicBufferOutputStream.cs Normal file
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using System;
using System.IO;
namespace CUETools.Codecs
{
public class CyclicBufferOutputStream : Stream
{
private CyclicBuffer _buffer;
public override bool CanRead
{
get { return false; }
}
public override bool CanSeek
{
get { return false; }
}
public override bool CanWrite
{
get { return true; }
}
public override long Length
{
get
{
throw new NotSupportedException();
}
}
public override long Position
{
get { throw new NotSupportedException(); }
set { throw new NotSupportedException(); }
}
public CyclicBufferOutputStream(CyclicBuffer buffer)
{
_buffer = buffer;
}
public CyclicBufferOutputStream(Stream output, int size)
{
_buffer = new CyclicBuffer(size);
_buffer.WriteTo(output);
}
public override void Close()
{
_buffer.Close();
}
public override void Flush()
{
throw new NotSupportedException();
}
public override void SetLength(long value)
{
throw new NotSupportedException();
}
public override int Read(byte[] array, int offset, int count)
{
throw new NotSupportedException();
}
public override long Seek(long offset, SeekOrigin origin)
{
throw new NotSupportedException();
}
public override void Write(byte[] array, int offset, int count)
{
_buffer.Read(array, offset, count);
}
}
}

27
Aaru.Compression/cuetools.net/CUETools.Codecs/DefaultValueForMode.cs Normal file
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using System;
using System.Collections.Generic;
using System.Text;
namespace CUETools.Codecs
{
/// <summary>
/// Default property value for each encoder mode attribute
/// </summary>
[AttributeUsage(AttributeTargets.Property, AllowMultiple = false, Inherited = true)]
public class DefaultValueForModeAttribute : Attribute
{
/// <summary>
/// Resource manager to use;
/// </summary>
public object[] m_values;
/// <summary>
/// Construct the description attribute
/// </summary>
/// <param name="text"></param>
public DefaultValueForModeAttribute(params object[] values)
{
this.m_values = values;
}
}
}

14
Aaru.Compression/cuetools.net/CUETools.Codecs/IAudioDest.cs Normal file
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namespace CUETools.Codecs
{
public interface IAudioDest
{
IAudioEncoderSettings Settings { get; }
string Path { get; }
long FinalSampleCount { set; }
void Write(AudioBuffer buffer);
void Close();
void Delete();
}
}

7
Aaru.Compression/cuetools.net/CUETools.Codecs/IAudioFilter.cs Normal file
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namespace CUETools.Codecs
{
public interface IAudioFilter
{
IAudioDest AudioDest { set; }
}
}

82
Aaru.Compression/cuetools.net/CUETools.Codecs/IAudioSource.cs Normal file
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using System;
using System.Collections.Generic;
namespace CUETools.Codecs
{
public interface IAudioSource
{
IAudioDecoderSettings Settings { get; }
AudioPCMConfig PCM { get; }
string Path { get; }
TimeSpan Duration { get; }
long Length { get; }
long Position { get; set; }
long Remaining { get; }
int Read(AudioBuffer buffer, int maxLength);
void Close();
}
public interface IAudioTitle
{
List<TimeSpan> Chapters { get; }
AudioPCMConfig PCM { get; }
string Codec { get; }
string Language { get; }
int StreamId { get; }
//IAudioSource Open { get; }
}
public interface IAudioTitleSet
{
List<IAudioTitle> AudioTitles { get; }
}
public static class IAudioTitleExtensions
{
public static TimeSpan GetDuration(this IAudioTitle title)
{
var chapters = title.Chapters;
return chapters[chapters.Count - 1];
}
public static string GetRateString(this IAudioTitle title)
{
var sr = title.PCM.SampleRate;
if (sr % 1000 == 0) return $"{sr / 1000}KHz";
if (sr % 100 == 0) return $"{sr / 100}.{(sr / 100) % 10}KHz";
return $"{sr}Hz";
}
public static string GetFormatString(this IAudioTitle title)
{
switch (title.PCM.ChannelCount)
{
case 1: return "mono";
case 2: return "stereo";
default: return "multi-channel";
}
}
}
public class SingleAudioTitle : IAudioTitle
{
public SingleAudioTitle(IAudioSource source) { this.source = source; }
public List<TimeSpan> Chapters => new List<TimeSpan> { TimeSpan.Zero, source.Duration };
public AudioPCMConfig PCM => source.PCM;
public string Codec => source.Settings.Extension;
public string Language => "";
public int StreamId => 0;
IAudioSource source;
}
public class SingleAudioTitleSet : IAudioTitleSet
{
public SingleAudioTitleSet(IAudioSource source) { this.source = source; }
public List<IAudioTitle> AudioTitles => new List<IAudioTitle> { new SingleAudioTitle(source) };
IAudioSource source;
}
}

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using System;
namespace CUETools.Codecs
{
/// <summary>
/// Represents the interface to a device that can play a WaveFile
/// </summary>
public interface IWavePlayer : IDisposable, IAudioDest
{
/// <summary>
/// Begin playback
/// </summary>
void Play();
/// <summary>
/// Stop playback
/// </summary>
void Stop();
/// <summary>
/// Pause Playback
/// </summary>
void Pause();
/// <summary>
/// Current playback state
/// </summary>
PlaybackState PlaybackState { get; }
/// <summary>
/// The volume 1.0 is full scale
/// </summary>
float Volume { get; set; }
/// <summary>
/// Indicates that playback has gone into a stopped state due to
/// reaching the end of the input stream
/// </summary>
event EventHandler PlaybackStopped;
}
}

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Aaru.Compression/cuetools.net/CUETools.Codecs/LPC.cs Normal file
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Aaru.Compression/cuetools.net/CUETools.Codecs/License.txt Normal file
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CUETools.Codecs: common audio encoder/decoder routines
Copyright (c) 2009-2021 Gregory S. Chudov
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

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using System;
using System.Collections.Generic;
namespace CUETools.Codecs
{
unsafe public class LpcSubframeInfo
{
public LpcSubframeInfo()
{
autocorr_section_values = new double[lpc.MAX_LPC_SECTIONS, lpc.MAX_LPC_ORDER + 1];
autocorr_section_orders = new int[lpc.MAX_LPC_SECTIONS];
}
// public LpcContext[] lpc_ctx;
public double[,] autocorr_section_values;
public int[] autocorr_section_orders;
//public int obits;
public void Reset()
{
for (int sec = 0; sec < autocorr_section_orders.Length; sec++)
autocorr_section_orders[sec] = 0;
}
}
unsafe public struct LpcWindowSection
{
public enum SectionType
{
Zero,
One,
OneLarge,
Data,
OneGlue,
Glue
};
public int m_start;
public int m_end;
public SectionType m_type;
public int m_id;
public LpcWindowSection(int end)
{
m_id = -1;
m_start = 0;
m_end = end;
m_type = SectionType.Data;
}
public void setData(int start, int end)
{
m_id = -1;
m_start = start;
m_end = end;
m_type = SectionType.Data;
}
public void setOne(int start, int end)
{
m_id = -1;
m_start = start;
m_end = end;
m_type = SectionType.One;
}
public void setGlue(int start)
{
m_id = -1;
m_start = start;
m_end = start;
m_type = SectionType.Glue;
}
public void setZero(int start, int end)
{
m_id = -1;
m_start = start;
m_end = end;
m_type = SectionType.Zero;
}
unsafe public void compute_autocorr(/*const*/ int* data, float* window, int min_order, int order, int blocksize, double* autoc)
{
if (m_type == SectionType.OneLarge)
lpc.compute_autocorr_windowless_large(data + m_start, m_end - m_start, min_order, order, autoc);
else if (m_type == SectionType.One)
lpc.compute_autocorr_windowless(data + m_start, m_end - m_start, min_order, order, autoc);
else if (m_type == SectionType.Data)
lpc.compute_autocorr(data + m_start, window + m_start, m_end - m_start, min_order, order, autoc);
else if (m_type == SectionType.Glue)
lpc.compute_autocorr_glue(data, window, m_start, m_end, min_order, order, autoc);
else if (m_type == SectionType.OneGlue)
lpc.compute_autocorr_glue(data + m_start, min_order, order, autoc);
}
unsafe public static void Detect(int _windowcount, float* window_segment, int stride, int sz, int bps, LpcWindowSection* sections)
{
int section_id = 0;
var boundaries = new List<int>();
var types = new LpcWindowSection.SectionType[_windowcount, lpc.MAX_LPC_SECTIONS * 2];
var alias = new int[_windowcount, lpc.MAX_LPC_SECTIONS * 2];
var alias_set = new int[_windowcount, lpc.MAX_LPC_SECTIONS * 2];
for (int x = 0; x < sz; x++)
{
for (int i = 0; i < _windowcount; i++)
{
int a = alias[i, boundaries.Count];
float w = window_segment[i * stride + x];
float wa = window_segment[a * stride + x];
if (wa != w)
{
for (int i1 = i; i1 < _windowcount; i1++)
if (alias[i1, boundaries.Count] == a
&& w == window_segment[i1 * stride + x])
alias[i1, boundaries.Count] = i;
}
if (boundaries.Count >= lpc.MAX_LPC_SECTIONS * 2) throw new IndexOutOfRangeException();
types[i, boundaries.Count] =
boundaries.Count >= lpc.MAX_LPC_SECTIONS * 2 - 2 ?
LpcWindowSection.SectionType.Data : w == 0.0 ?
LpcWindowSection.SectionType.Zero : w != 1.0 ?
LpcWindowSection.SectionType.Data : bps * 2 + BitReader.log2i(sz) >= 61 ?
LpcWindowSection.SectionType.OneLarge :
LpcWindowSection.SectionType.One ;
}
bool isBoundary = false;
for (int i = 0; i < _windowcount; i++)
{
isBoundary |= boundaries.Count == 0 ||
types[i, boundaries.Count - 1] != types[i, boundaries.Count];
}
if (isBoundary)
{
for (int i = 0; i < _windowcount; i++)
for (int i1 = 0; i1 < _windowcount; i1++)
if (i != i1 && alias[i, boundaries.Count] == alias[i1, boundaries.Count])
alias_set[i, boundaries.Count] |= 1 << i1;
boundaries.Add(x);
}
}
boundaries.Add(sz);
var secs = new int[_windowcount];
// Reconstruct segments list.
for (int j = 0; j < boundaries.Count - 1; j++)
{
for (int i = 0; i < _windowcount; i++)
{
LpcWindowSection* window_sections = sections + i * lpc.MAX_LPC_SECTIONS;
// leave room for glue
if (secs[i] >= lpc.MAX_LPC_SECTIONS - 1)
{
throw new IndexOutOfRangeException();
//window_sections[secs[i] - 1].m_type = LpcWindowSection.SectionType.Data;
//window_sections[secs[i] - 1].m_end = boundaries[j + 1];
//continue;
}
window_sections[secs[i]].setData(boundaries[j], boundaries[j + 1]);
window_sections[secs[i]++].m_type = types[i, j];
}
for (int i = 0; i < _windowcount; i++)
{
LpcWindowSection* window_sections = sections + i * lpc.MAX_LPC_SECTIONS;
int sec = secs[i] - 1;
if (sec > 0
&& j > 0 && (alias_set[i, j] == alias_set[i, j - 1] || window_sections[sec].m_type == SectionType.Zero)
&& window_sections[sec].m_start == boundaries[j]
&& window_sections[sec].m_end == boundaries[j + 1]
&& window_sections[sec - 1].m_end == boundaries[j]
&& window_sections[sec - 1].m_type == window_sections[sec].m_type)
{
window_sections[sec - 1].m_end = window_sections[sec].m_end;
secs[i]--;
continue;
}
if (section_id >= lpc.MAX_LPC_SECTIONS) throw new IndexOutOfRangeException();
if (alias_set[i, j] != 0
&& types[i, j] != SectionType.Zero
&& section_id < lpc.MAX_LPC_SECTIONS)
{
for (int i1 = i; i1 < _windowcount; i1++)
if (alias[i1, j] == i && secs[i1] > 0)
sections[i1 * lpc.MAX_LPC_SECTIONS + secs[i1] - 1].m_id = section_id;
section_id++;
}
// TODO: section_id for glue? nontrivial, must be sure next sections are the same size
if (sec > 0
&& (window_sections[sec].m_type == SectionType.One || window_sections[sec].m_type == SectionType.OneLarge)
&& window_sections[sec].m_end - window_sections[sec].m_start >= lpc.MAX_LPC_ORDER
&& (window_sections[sec - 1].m_type == SectionType.One || window_sections[sec - 1].m_type == SectionType.OneLarge)
&& window_sections[sec - 1].m_end - window_sections[sec - 1].m_start >= lpc.MAX_LPC_ORDER)
{
window_sections[sec + 1] = window_sections[sec];
window_sections[sec].m_end = window_sections[sec].m_start;
window_sections[sec].m_type = SectionType.OneGlue;
window_sections[sec].m_id = -1;
secs[i]++;
continue;
}
if (sec > 0
&& window_sections[sec].m_type != SectionType.Zero
&& window_sections[sec - 1].m_type != SectionType.Zero)
{
window_sections[sec + 1] = window_sections[sec];
window_sections[sec].m_end = window_sections[sec].m_start;
window_sections[sec].m_type = SectionType.Glue;
window_sections[sec].m_id = -1;
secs[i]++;
continue;
}
}
}
for (int i = 0; i < _windowcount; i++)
{
for (int s = 0; s < secs[i]; s++)
{
LpcWindowSection* window_sections = sections + i * lpc.MAX_LPC_SECTIONS;
if (window_sections[s].m_type == SectionType.Glue
|| window_sections[s].m_type == SectionType.OneGlue)
{
window_sections[s].m_end = window_sections[s + 1].m_end;
}
}
while (secs[i] < lpc.MAX_LPC_SECTIONS)
{
LpcWindowSection* window_sections = sections + i * lpc.MAX_LPC_SECTIONS;
window_sections[secs[i]++].setZero(sz, sz);
}
}
}
}
/// <summary>
/// Context for LPC coefficients calculation and order estimation
/// </summary>
unsafe public class LpcContext
{
public LpcContext()
{
coefs = new int[lpc.MAX_LPC_ORDER];
reflection_coeffs = new double[lpc.MAX_LPC_ORDER];
prediction_error = new double[lpc.MAX_LPC_ORDER];
autocorr_values = new double[lpc.MAX_LPC_ORDER + 1];
best_orders = new int[lpc.MAX_LPC_ORDER];
done_lpcs = new uint[lpc.MAX_LPC_PRECISIONS];
}
/// <summary>
/// Reset to initial (blank) state
/// </summary>
public void Reset()
{
autocorr_order = 0;
for (int iPrecision = 0; iPrecision < lpc.MAX_LPC_PRECISIONS; iPrecision++)
done_lpcs[iPrecision] = 0;
}
/// <summary>
/// Calculate autocorrelation data and reflection coefficients.
/// Can be used to incrementaly compute coefficients for higher orders,
/// because it caches them.
/// </summary>
/// <param name="order">Maximum order</param>
/// <param name="samples">Samples pointer</param>
/// <param name="blocksize">Block size</param>
/// <param name="window">Window function</param>
public void GetReflection(LpcSubframeInfo subframe, int order, int blocksize, int* samples, float* window, LpcWindowSection* sections)
{
if (autocorr_order > order)
return;
fixed (double* reff = reflection_coeffs, autoc = autocorr_values, err = prediction_error)
{
for (int i = autocorr_order; i <= order; i++) autoc[i] = 0;
for (int section = 0; section < lpc.MAX_LPC_SECTIONS; section++)
{
if (sections[section].m_type == LpcWindowSection.SectionType.Zero)
{
continue;
}
if (sections[section].m_id >= 0)
{
if (subframe.autocorr_section_orders[sections[section].m_id] <= order)
{
fixed (double* autocsec = &subframe.autocorr_section_values[sections[section].m_id, 0])
{
int min_order = subframe.autocorr_section_orders[sections[section].m_id];
for (int i = min_order; i <= order; i++) autocsec[i] = 0;
sections[section].compute_autocorr(samples, window, min_order, order, blocksize, autocsec);
}
subframe.autocorr_section_orders[sections[section].m_id] = order + 1;
}
for (int i = autocorr_order; i <= order; i++)
autoc[i] += subframe.autocorr_section_values[sections[section].m_id, i];
}
else
{
sections[section].compute_autocorr(samples, window, autocorr_order, order, blocksize, autoc);
}
}
lpc.compute_schur_reflection(autoc, (uint)order, reff, err);
autocorr_order = order + 1;
}
}
#if XXX
public void GetReflection1(int order, int* samples, int blocksize, float* window)
{
if (autocorr_order > order)
return;
fixed (double* reff = reflection_coeffs, autoc = autocorr_values, err = prediction_error)
{
lpc.compute_autocorr(samples, blocksize, 0, order + 1, autoc, window);
for (int i = 1; i <= order; i++)
autoc[i] = autoc[i + 1];
lpc.compute_schur_reflection(autoc, (uint)order, reff, err);
autocorr_order = order + 1;
}
}
public void ComputeReflection(int order, float* autocorr)
{
fixed (double* reff = reflection_coeffs, autoc = autocorr_values, err = prediction_error)
{
for (int i = 0; i <= order; i++)
autoc[i] = autocorr[i];
lpc.compute_schur_reflection(autoc, (uint)order, reff, err);
autocorr_order = order + 1;
}
}
public void ComputeReflection(int order, double* autocorr)
{
fixed (double* reff = reflection_coeffs, autoc = autocorr_values, err = prediction_error)
{
for (int i = 0; i <= order; i++)
autoc[i] = autocorr[i];
lpc.compute_schur_reflection(autoc, (uint)order, reff, err);
autocorr_order = order + 1;
}
}
#endif
public double Akaike(int blocksize, int order, double alpha, double beta)
{
//return (blocksize - order) * (Math.Log(prediction_error[order - 1]) - Math.Log(1.0)) + Math.Log(blocksize) * order * (alpha + beta * order);
//return blocksize * (Math.Log(prediction_error[order - 1]) - Math.Log(autocorr_values[0]) / 2) + Math.Log(blocksize) * order * (alpha + beta * order);
return blocksize * (Math.Log(prediction_error[order - 1])) + Math.Log(blocksize) * order * (alpha + beta * order);
}
/// <summary>
/// Sorts orders based on Akaike's criteria
/// </summary>
/// <param name="blocksize">Frame size</param>
public void SortOrdersAkaike(int blocksize, int count, int min_order, int max_order, double alpha, double beta)
{
for (int i = min_order; i <= max_order; i++)
best_orders[i - min_order] = i;
int lim = max_order - min_order + 1;
for (int i = 0; i < lim && i < count; i++)
{
for (int j = i + 1; j < lim; j++)
{
if (Akaike(blocksize, best_orders[j], alpha, beta) < Akaike(blocksize, best_orders[i], alpha, beta))
{
int tmp = best_orders[j];
best_orders[j] = best_orders[i];
best_orders[i] = tmp;
}
}
}
}
/// <summary>
/// Produces LPC coefficients from autocorrelation data.
/// </summary>
/// <param name="lpcs">LPC coefficients buffer (for all orders)</param>
public void ComputeLPC(float* lpcs)
{
fixed (double* reff = reflection_coeffs)
lpc.compute_lpc_coefs((uint)autocorr_order - 1, reff, lpcs);
}
public double[] autocorr_values;
double[] reflection_coeffs;
public double[] prediction_error;
public int[] best_orders;
public int[] coefs;
int autocorr_order;
public int shift;
public double[] Reflection
{
get
{
return reflection_coeffs;
}
}
public uint[] done_lpcs;
}
}

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using System;
namespace CUETools.Codecs.NULL
{
public class AudioDecoder : IAudioSource
{
private long _sampleOffset, _sampleCount;
private AudioPCMConfig pcm;
private int _sampleVal;
public IAudioDecoderSettings Settings => null;
public TimeSpan Duration => TimeSpan.FromSeconds((double)Length / PCM.SampleRate);
public long Length
{
get { return _sampleCount; }
}
public long Remaining
{
get { return _sampleCount - _sampleOffset; }
}
public long Position
{
get { return _sampleOffset; }
set { _sampleOffset = value; }
}
public AudioPCMConfig PCM { get { return pcm; } }
public string Path { get { return null; } }
public AudioDecoder(AudioPCMConfig pcm, long sampleCount, int sampleVal)
{
this._sampleVal = sampleVal;
this._sampleOffset = 0;
this._sampleCount = sampleCount;
this.pcm = pcm;
}
public AudioDecoder(long sampleCount)
: this(AudioPCMConfig.RedBook, sampleCount, 0)
{
}
public int Read(AudioBuffer buff, int maxLength)
{
buff.Prepare(this, maxLength);
int[,] samples = buff.Samples;
for (int i = 0; i < buff.Length; i++)
for (int j = 0; j < PCM.ChannelCount; j++)
samples[i, j] = _sampleVal;
_sampleOffset += buff.Length;
return buff.Length;
}
public void Close()
{
}
}
}

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Aaru.Compression/cuetools.net/CUETools.Codecs/NULL/AudioEncoder.cs Normal file
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using System;
namespace CUETools.Codecs.NULL
{
public class AudioEncoder : IAudioDest
{
IAudioEncoderSettings m_settings;
public AudioEncoder(string path, IAudioEncoderSettings settings)
{
m_settings = settings;
}
public void Close()
{
}
public void Delete()
{
}
public long FinalSampleCount
{
set { }
}
public IAudioEncoderSettings Settings => m_settings;
public void Write(AudioBuffer buff)
{
}
public string Path => null;
}
}

66
Aaru.Compression/cuetools.net/CUETools.Codecs/NullStream.cs Normal file
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using System;
using System.IO;
namespace CUETools.Codecs
{
public class NullStream : Stream
{
public override bool CanRead
{
get { return false; }
}
public override bool CanSeek
{
get { return false; }
}
public override bool CanWrite
{
get { return true; }
}
public override long Length
{
get { throw new NotSupportedException(); }
}
public override long Position
{
get { throw new NotSupportedException(); }
set { throw new NotSupportedException(); }
}
public NullStream()
{
}
public override void Close()
{
}
public override void Flush()
{
throw new NotSupportedException();
}
public override void SetLength(long value)
{
throw new NotSupportedException();
}
public override int Read(byte[] array, int offset, int count)
{
throw new NotSupportedException();
}
public override long Seek(long offset, SeekOrigin origin)
{
throw new NotSupportedException();
}
public override void Write(byte[] array, int offset, int count)
{
}
}
}

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Aaru.Compression/cuetools.net/CUETools.Codecs/PlaybackState.cs Normal file
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namespace CUETools.Codecs
{
/// <summary>
/// Playback State
/// </summary>
public enum PlaybackState
{
/// <summary>
/// Stopped
/// </summary>
Stopped,
/// <summary>
/// Playing
/// </summary>
Playing,
/// <summary>
/// Paused
/// </summary>
Paused
}
}

56
Aaru.Compression/cuetools.net/CUETools.Codecs/SRDescriptionAttribute.cs Normal file
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using System;
using System.ComponentModel;
namespace CUETools.Codecs
{
/// <summary>
/// Localized description attribute
/// </summary>
[AttributeUsage(AttributeTargets.All, AllowMultiple = false, Inherited = true)]
public class SRDescriptionAttribute : DescriptionAttribute
{
/// <summary>
/// Store a flag indicating whether this has been localized
/// </summary>
private bool localized;
/// <summary>
/// Resource manager to use;
/// </summary>
private Type SR;
/// <summary>
/// Construct the description attribute
/// </summary>
/// <param name="text"></param>
public SRDescriptionAttribute(Type SR, string text)
: base(text)
{
this.localized = false;
this.SR = SR;
}
/// <summary>
/// Override the return of the description text to localize the text
/// </summary>
public override string Description
{
get
{
if (!localized)
{
localized = true;
this.DescriptionValue = SR.InvokeMember(
this.DescriptionValue,
System.Reflection.BindingFlags.GetProperty | System.Reflection.BindingFlags.Static |
System.Reflection.BindingFlags.Public | System.Reflection.BindingFlags.NonPublic,
null,
null,
new object[] { }) as string;
}
return base.Description;
}
}
}
}

97
Aaru.Compression/cuetools.net/CUETools.Codecs/ViewModel/AudioDecoderSettingsViewModel.cs Normal file
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using Newtonsoft.Json;
using System;
using System.ComponentModel;
namespace CUETools.Codecs
{
[JsonObject(MemberSerialization.OptIn)]
public class AudioDecoderSettingsViewModel : INotifyPropertyChanged
{
[JsonProperty]
public IAudioDecoderSettings Settings = null;
public event PropertyChangedEventHandler PropertyChanged;
[JsonConstructor]
private AudioDecoderSettingsViewModel()
{
}
public AudioDecoderSettingsViewModel(IAudioDecoderSettings settings)
{
this.Settings = settings;
}
public override string ToString()
{
return Name;
}
public string FullName => Name + " [" + Extension + "]";
public string Path
{
get
{
if (Settings is CommandLine.DecoderSettings)
return (Settings as CommandLine.DecoderSettings).Path;
return "";
}
set
{
if (Settings is CommandLine.DecoderSettings)
(Settings as CommandLine.DecoderSettings).Path = value;
else throw new InvalidOperationException();
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs("Path"));
}
}
public string Parameters
{
get
{
if (Settings is CommandLine.DecoderSettings)
return (Settings as CommandLine.DecoderSettings).Parameters;
return "";
}
set
{
if (Settings is CommandLine.DecoderSettings)
(Settings as CommandLine.DecoderSettings).Parameters = value;
else throw new InvalidOperationException();
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs("Parameters"));
}
}
public string Name
{
get => Settings.Name;
set
{
if (Settings is CommandLine.DecoderSettings)
(Settings as CommandLine.DecoderSettings).Name = value;
else throw new InvalidOperationException();
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs("Name"));
}
}
public string Extension
{
get => Settings.Extension;
set
{
if (Settings is CommandLine.DecoderSettings)
(Settings as CommandLine.DecoderSettings).Extension = value;
else throw new InvalidOperationException();
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs("Extension"));
}
}
public string DotExtension => "." + Extension;
public bool CanBeDeleted => Settings is CommandLine.DecoderSettings;
public bool IsValid =>
(Settings != null)
&& (Settings is CommandLine.DecoderSettings ? (Settings as CommandLine.DecoderSettings).Path != "" : true);
}
}

137
Aaru.Compression/cuetools.net/CUETools.Codecs/ViewModel/AudioEncoderSettingsViewModel.cs Normal file
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using Newtonsoft.Json;
using System;
using System.ComponentModel;
namespace CUETools.Codecs
{
[JsonObject(MemberSerialization.OptIn)]
public class AudioEncoderSettingsViewModel : INotifyPropertyChanged
{
[JsonProperty]
public IAudioEncoderSettings Settings = null;
public event PropertyChangedEventHandler PropertyChanged;
[JsonConstructor]
private AudioEncoderSettingsViewModel()
{
}
public AudioEncoderSettingsViewModel(IAudioEncoderSettings settings)
{
this.Settings = settings;
}
public override string ToString()
{
return Name;
}
public string FullName => Name + " [" + Extension + "]";
public string Path
{
get
{
if (Settings is CommandLine.EncoderSettings)
return (Settings as CommandLine.EncoderSettings).Path;
return "";
}
set
{
var settings = this.Settings as CommandLine.EncoderSettings;
if (settings == null) throw new InvalidOperationException();
settings.Path = value;
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs("Path"));
}
}
public string Parameters
{
get
{
if (Settings is CommandLine.EncoderSettings)
return (Settings as CommandLine.EncoderSettings).Parameters;
return "";
}
set
{
var settings = this.Settings as CommandLine.EncoderSettings;
if (settings == null) throw new InvalidOperationException();
settings.Parameters = value;
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs("Parameters"));
}
}
public bool Lossless
{
get => Settings.Lossless;
set
{
var settings = this.Settings as CommandLine.EncoderSettings;
if (settings == null) throw new InvalidOperationException();
settings.Lossless = value;
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs("Lossless"));
}
}
public string Name
{
get => Settings.Name;
set
{
var settings = this.Settings as CommandLine.EncoderSettings;
if (settings == null) throw new InvalidOperationException();
settings.Name = value;
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs("Name"));
}
}
public string Extension
{
get => Settings.Extension;
set
{
var settings = this.Settings as CommandLine.EncoderSettings;
if (settings == null) throw new InvalidOperationException();
settings.Extension = value;
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs("Extension"));
}
}
public string DotExtension => "." + Extension;
public string SupportedModes
{
get => Settings.SupportedModes;
set
{
var settings = this.Settings as CommandLine.EncoderSettings;
if (settings == null) throw new InvalidOperationException();
settings.SupportedModes = value;
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs("SupportedModes"));
}
}
public int EncoderModeIndex
{
get
{
string[] modes = this.SupportedModes.Split(' ');
if (modes == null || modes.Length < 2)
return -1;
for (int i = 0; i < modes.Length; i++)
if (modes[i] == this.Settings.EncoderMode)
return i;
return -1;
}
}
public bool CanBeDeleted => Settings is CommandLine.EncoderSettings;
public bool IsValid =>
(Settings != null)
&& (Settings is CommandLine.EncoderSettings ? (Settings as CommandLine.EncoderSettings).Path != "" : true);
}
}

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Aaru.Compression/cuetools.net/CUETools.Codecs/ViewModel/DecoderListViewModel.cs Normal file
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using System;
using System.Collections.Generic;
using System.ComponentModel;
namespace CUETools.Codecs
{
public class DecoderListViewModel : BindingList<AudioDecoderSettingsViewModel>
{
private List<IAudioDecoderSettings> model;
public DecoderListViewModel(List<IAudioDecoderSettings> model)
: base()
{
this.model = model;
model.ForEach(item => Add(new AudioDecoderSettingsViewModel(item)));
AddingNew += OnAddingNew;
}
private void OnAddingNew(object sender, AddingNewEventArgs e)
{
var item = new CommandLine.DecoderSettings("new", "wav", "", "");
model.Add(item);
e.NewObject = new AudioDecoderSettingsViewModel(item);
}
public bool TryGetValue(string extension, string name, out AudioDecoderSettingsViewModel result)
{
foreach (AudioDecoderSettingsViewModel udc in this)
{
if (udc.Settings.Extension == extension && udc.Settings.Name == name)
{
result = udc;
return true;
}
}
result = null;
return false;
}
public AudioDecoderSettingsViewModel GetDefault(string extension)
{
AudioDecoderSettingsViewModel result = null;
foreach (AudioDecoderSettingsViewModel udc in this)
{
if (udc.Settings.Extension == extension && (result == null || result.Settings.Priority < udc.Settings.Priority))
{
result = udc;
}
}
return result;
}
}
}

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Aaru.Compression/cuetools.net/CUETools.Codecs/ViewModel/EncoderListViewModel.cs Normal file
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using System;
using System.Collections.Generic;
using System.ComponentModel;
namespace CUETools.Codecs
{
public class EncoderListViewModel : BindingList<AudioEncoderSettingsViewModel>
{
private List<IAudioEncoderSettings> model;
public EncoderListViewModel(List<IAudioEncoderSettings> model)
: base()
{
this.model = model;
model.ForEach(item => Add(new AudioEncoderSettingsViewModel(item)));
AddingNew += OnAddingNew;
}
private void OnAddingNew(object sender, AddingNewEventArgs e)
{
var item = new CommandLine.EncoderSettings("new", "wav", true, "", "", "", "");
model.Add(item);
e.NewObject = new AudioEncoderSettingsViewModel(item);
}
public bool TryGetValue(string extension, bool lossless, string name, out AudioEncoderSettingsViewModel result)
{
//result = this.Where(udc => udc.settings.Extension == extension && udc.settings.Lossless == lossless && udc.settings.Name == name).First();
foreach (AudioEncoderSettingsViewModel udc in this)
{
if (udc.Settings.Extension == extension && udc.Settings.Lossless == lossless && udc.Settings.Name == name)
{
result = udc;
return true;
}
}
result = null;
return false;
}
public AudioEncoderSettingsViewModel GetDefault(string extension, bool lossless)
{
AudioEncoderSettingsViewModel result = null;
foreach (AudioEncoderSettingsViewModel udc in this)
{
if (udc.Settings.Extension == extension && udc.Settings.Lossless == lossless && (result == null || result.Settings.Priority < udc.Settings.Priority))
{
result = udc;
}
}
return result;
}
}
}

271
Aaru.Compression/cuetools.net/CUETools.Codecs/WAV/AudioDecoder.cs Normal file
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using System;
using System.IO;
namespace CUETools.Codecs.WAV
{
public class AudioDecoder : IAudioSource
{
Stream _IO;
BinaryReader _br;
long _dataOffset, _samplePos, _sampleLen;
private AudioPCMConfig pcm;
long _dataLen;
bool _largeFile;
string _path;
private DecoderSettings m_settings;
public IAudioDecoderSettings Settings => m_settings;
public long Position
{
get
{
return _samplePos;
}
set
{
long seekPos;
if (_samplePos == value)
{
return;
}
var oldSamplePos = _samplePos;
if (_sampleLen >= 0 && value > _sampleLen)
_samplePos = _sampleLen;
else
_samplePos = value;
if (_IO.CanSeek || _samplePos < oldSamplePos)
{
seekPos = _dataOffset + _samplePos * PCM.BlockAlign;
_IO.Seek(seekPos, SeekOrigin.Begin);
}
else
{
int offs = (int)(_samplePos - oldSamplePos) * PCM.BlockAlign;
while (offs > 0)
{
int chunk = Math.Min(offs, 16536);
_br.ReadBytes(chunk);
offs -= chunk;
}
}
}
}
public TimeSpan Duration => Length < 0 ? TimeSpan.Zero : TimeSpan.FromSeconds((double)Length / PCM.SampleRate);
public long Length
{
get
{
return _sampleLen;
}
}
public long Remaining
{
get
{
return _sampleLen - _samplePos;
}
}
public AudioPCMConfig PCM { get { return pcm; } }
public string Path { get { return _path; } }
public AudioDecoder(DecoderSettings settings, string path, Stream IO = null)
{
m_settings = settings;
_path = path;
_IO = IO ?? new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.Read, 0x10000, FileOptions.SequentialScan);
_br = new BinaryReader(_IO);
ParseHeaders();
if (_dataLen < 0 || m_settings.IgnoreChunkSizes)
_sampleLen = -1;
else
_sampleLen = _dataLen / pcm.BlockAlign;
}
public AudioDecoder(DecoderSettings settings, string path, Stream IO, AudioPCMConfig _pcm)
{
m_settings = settings;
_path = path;
_IO = IO != null ? IO : new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.Read, 0x10000, FileOptions.SequentialScan);
_br = new BinaryReader(_IO);
_largeFile = false;
_dataOffset = 0;
_samplePos = 0;
pcm = _pcm;
_dataLen = _IO.CanSeek ? _IO.Length : -1;
if (_dataLen < 0)
_sampleLen = -1;
else
{
_sampleLen = _dataLen / pcm.BlockAlign;
if ((_dataLen % pcm.BlockAlign) != 0)
throw new Exception("odd file size");
}
}
public static AudioBuffer ReadAllSamples(DecoderSettings settings, string path, Stream IO = null)
{
AudioDecoder reader = new AudioDecoder(settings, path, IO);
AudioBuffer buff = new AudioBuffer(reader, (int)reader.Length);
reader.Read(buff, -1);
if (reader.Remaining != 0)
throw new Exception("couldn't read the whole file");
reader.Close();
return buff;
}
public void Close()
{
if (_br != null)
{
_br.Close();
_br = null;
}
_IO = null;
}
private void ParseHeaders()
{
const long maxFileSize = 0x7FFFFFFEL;
const uint fccRIFF = 0x46464952;
const uint fccWAVE = 0x45564157;
const uint fccFormat = 0x20746D66;
const uint fccData = 0x61746164;
uint lenRIFF;
bool foundFormat, foundData;
if (_br.ReadUInt32() != fccRIFF)
{
throw new Exception("Not a valid RIFF file.");
}
lenRIFF = _br.ReadUInt32();
if (_br.ReadUInt32() != fccWAVE)
{
throw new Exception("Not a valid WAVE file.");
}
_largeFile = false;
foundFormat = false;
foundData = false;
long pos = 12;
do
{
uint ckID, ckSize, ckSizePadded;
long ckEnd;
ckID = _br.ReadUInt32();
ckSize = _br.ReadUInt32();
ckSizePadded = (ckSize + 1U) & ~1U;
pos += 8;
ckEnd = pos + (long)ckSizePadded;
if (ckID == fccFormat)
{
foundFormat = true;
uint fmtTag = _br.ReadUInt16();
int _channelCount = _br.ReadInt16();
int _sampleRate = _br.ReadInt32();
_br.ReadInt32(); // bytes per second
int _blockAlign = _br.ReadInt16();
int _bitsPerSample = _br.ReadInt16();
int _channelMask = 0;
pos += 16;
if (fmtTag == 0xFFFEU && ckSize >= 34) // WAVE_FORMAT_EXTENSIBLE
{
_br.ReadInt16(); // CbSize
_br.ReadInt16(); // ValidBitsPerSample
_channelMask = _br.ReadInt32();
fmtTag = _br.ReadUInt16();
pos += 10;
}
if (fmtTag != 1) // WAVE_FORMAT_PCM
throw new Exception("WAVE format tag not WAVE_FORMAT_PCM.");
pcm = new AudioPCMConfig(_bitsPerSample, _channelCount, _sampleRate, (AudioPCMConfig.SpeakerConfig)_channelMask);
if (pcm.BlockAlign != _blockAlign)
throw new Exception("WAVE has strange BlockAlign");
}
else if (ckID == fccData)
{
foundData = true;
_dataOffset = pos;
if (!_IO.CanSeek || _IO.Length <= maxFileSize)
{
if (ckSize == 0 || ckSize >= 0x7fffffff)
_dataLen = -1;
else
_dataLen = (long)ckSize;
}
else
{
_largeFile = true;
_dataLen = _IO.Length - pos;
}
}
if ((foundFormat & foundData) || _largeFile)
break;
if (_IO.CanSeek)
_IO.Seek(ckEnd, SeekOrigin.Begin);
else
_br.ReadBytes((int)(ckEnd - pos));
pos = ckEnd;
} while (true);
if ((foundFormat & foundData) == false || pcm == null)
throw new Exception("Format or data chunk not found.");
if (pcm.ChannelCount <= 0)
throw new Exception("Channel count is invalid.");
if (pcm.SampleRate <= 0)
throw new Exception("Sample rate is invalid.");
if ((pcm.BitsPerSample <= 0) || (pcm.BitsPerSample > 32))
throw new Exception("Bits per sample is invalid.");
if (pos != _dataOffset)
Position = 0;
}
public int Read(AudioBuffer buff, int maxLength)
{
buff.Prepare(this, maxLength);
byte[] bytes = buff.Bytes;
int byteCount = (int)buff.ByteLength;
int pos = 0;
while (pos < byteCount)
{
int len = _IO.Read(bytes, pos, byteCount - pos);
if (len <= 0)
{
if ((pos % PCM.BlockAlign) != 0 || _sampleLen >= 0)
throw new Exception("Incomplete file read.");
buff.Length = pos / PCM.BlockAlign;
_samplePos += buff.Length;
_sampleLen = _samplePos;
return buff.Length;
}
pos += len;
}
_samplePos += buff.Length;
return buff.Length;
}
}
}

180
Aaru.Compression/cuetools.net/CUETools.Codecs/WAV/AudioEncoder.cs Normal file
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using System;
using System.Collections.Generic;
using System.IO;
namespace CUETools.Codecs.WAV
{
public class AudioEncoder : IAudioDest
{
private Stream _IO;
private BinaryWriter _bw;
private long _sampleLen;
private string _path;
private long hdrLen = 0;
private bool _headersWritten = false;
private long _finalSampleCount = -1;
private List<byte[]> _chunks = null;
private List<uint> _chunkFCCs = null;
public long Position
{
get
{
return _sampleLen;
}
}
public long FinalSampleCount
{
set { _finalSampleCount = value; }
}
private EncoderSettings m_settings;
public IAudioEncoderSettings Settings => m_settings;
public string Path { get { return _path; } }
public AudioEncoder(EncoderSettings settings, string path, Stream IO = null)
{
m_settings = settings;
_path = path;
_IO = IO ?? new FileStream(path, FileMode.Create, FileAccess.Write, FileShare.Read);
_bw = new BinaryWriter(_IO);
}
public void WriteChunk(uint fcc, byte[] data)
{
if (_sampleLen > 0)
throw new Exception("data already written, no chunks allowed");
if (_chunks == null)
{
_chunks = new List<byte[]>();
_chunkFCCs = new List<uint>();
}
_chunkFCCs.Add(fcc);
_chunks.Add(data);
hdrLen += 8 + data.Length + (data.Length & 1);
}
private void WriteHeaders()
{
const uint fccRIFF = 0x46464952;
const uint fccWAVE = 0x45564157;
const uint fccFormat = 0x20746D66;
const uint fccData = 0x61746164;
bool wavex = (Settings.PCM.BitsPerSample != 16 && Settings.PCM.BitsPerSample != 24) || Settings.PCM.ChannelMask != AudioPCMConfig.GetDefaultChannelMask(Settings.PCM.ChannelCount);
hdrLen += 36 + (wavex ? 24 : 0) + 8;
uint dataLen = (uint)(_finalSampleCount * Settings.PCM.BlockAlign);
uint dataLenPadded = dataLen + (dataLen & 1);
_bw.Write(fccRIFF);
if (_finalSampleCount <= 0)
_bw.Write((uint)0xffffffff);
else
_bw.Write((uint)(dataLenPadded + hdrLen - 8));
_bw.Write(fccWAVE);
_bw.Write(fccFormat);
if (wavex)
{
_bw.Write((uint)40);
_bw.Write((ushort)0xfffe); // WAVEX follows
}
else
{
_bw.Write((uint)16);
_bw.Write((ushort)1); // PCM
}
_bw.Write((ushort)Settings.PCM.ChannelCount);
_bw.Write((uint)Settings.PCM.SampleRate);
_bw.Write((uint)(Settings.PCM.SampleRate * Settings.PCM.BlockAlign));
_bw.Write((ushort)Settings.PCM.BlockAlign);
_bw.Write((ushort)((Settings.PCM.BitsPerSample + 7) / 8 * 8));
if (wavex)
{
_bw.Write((ushort)22); // length of WAVEX structure
_bw.Write((ushort)Settings.PCM.BitsPerSample);
_bw.Write((uint)Settings.PCM.ChannelMask);
_bw.Write((ushort)1); // PCM Guid
_bw.Write((ushort)0);
_bw.Write((ushort)0);
_bw.Write((ushort)0x10);
_bw.Write((byte)0x80);
_bw.Write((byte)0x00);
_bw.Write((byte)0x00);
_bw.Write((byte)0xaa);
_bw.Write((byte)0x00);
_bw.Write((byte)0x38);
_bw.Write((byte)0x9b);
_bw.Write((byte)0x71);
}
if (_chunks != null)
for (int i = 0; i < _chunks.Count; i++)
{
_bw.Write(_chunkFCCs[i]);
_bw.Write((uint)_chunks[i].Length);
_bw.Write(_chunks[i]);
if ((_chunks[i].Length & 1) != 0)
_bw.Write((byte)0);
}
_bw.Write(fccData);
if (_finalSampleCount <= 0)
_bw.Write((uint)0xffffffff);
else
_bw.Write(dataLen);
_headersWritten = true;
}
public void Close()
{
if (_finalSampleCount <= 0 && _IO.CanSeek)
{
long dataLen = _sampleLen * Settings.PCM.BlockAlign;
long dataLenPadded = dataLen + (dataLen & 1);
if (dataLenPadded + hdrLen - 8 < 0xffffffff)
{
if ((dataLen & 1) == 1)
_bw.Write((byte)0);
_bw.Seek(4, SeekOrigin.Begin);
_bw.Write((uint)(dataLenPadded + hdrLen - 8));
_bw.Seek((int)hdrLen - 4, SeekOrigin.Begin);
_bw.Write((uint)dataLen);
}
}
_bw.Close();
_bw = null;
_IO = null;
if (_finalSampleCount > 0 && _sampleLen != _finalSampleCount)
throw new Exception("Samples written differs from the expected sample count.");
}
public void Delete()
{
_bw.Close();
_bw = null;
_IO = null;
if (_path != "")
File.Delete(_path);
}
public void Write(AudioBuffer buff)
{
if (buff.Length == 0)
return;
buff.Prepare(this);
if (!_headersWritten)
WriteHeaders();
_IO.Write(buff.Bytes, 0, buff.ByteLength);
_sampleLen += buff.Length;
}
}
}

36
Aaru.Compression/cuetools.net/CUETools.Codecs/WAV/DecoderSettings.cs Normal file
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using Newtonsoft.Json;
using System;
using System.ComponentModel;
namespace CUETools.Codecs.WAV
{
[JsonObject(MemberSerialization.OptIn)]
public class DecoderSettings : IAudioDecoderSettings
{
#region IAudioDecoderSettings implementation
[Browsable(false)]
public string Extension => "wav";
[Browsable(false)]
public string Name => "cuetools";
[Browsable(false)]
public Type DecoderType => typeof(AudioDecoder);
[Browsable(false)]
public int Priority => 2;
public IAudioDecoderSettings Clone()
{
return MemberwiseClone() as IAudioDecoderSettings;
}
#endregion
public DecoderSettings()
{
this.Init();
}
public bool IgnoreChunkSizes { get; set; }
}
}

64
Aaru.Compression/cuetools.net/CUETools.Codecs/WAV/EncoderSettings.cs Normal file
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using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Text;
namespace CUETools.Codecs.WAV
{
[JsonObject(MemberSerialization.OptIn)]
public class EncoderSettings : IAudioEncoderSettings
{
#region IAudioEncoderSettings implementation
[Browsable(false)]
public string Extension => "wav";
[Browsable(false)]
public string Name => "cuetools";
[Browsable(false)]
public Type EncoderType => typeof(WAV.AudioEncoder);
[Browsable(false)]
public bool Lossless => true;
[Browsable(false)]
public int Priority => 10;
[Browsable(false)]
public string SupportedModes => "";
[Browsable(false)]
public string DefaultMode => "";
[Browsable(false)]
[DefaultValue("")]
public string EncoderMode { get; set; }
[Browsable(false)]
public AudioPCMConfig PCM { get; set; }
[Browsable(false)]
public int BlockSize { get; set; }
[Browsable(false)]
[DefaultValue(4096)]
public int Padding { get; set; }
public IAudioEncoderSettings Clone()
{
return MemberwiseClone() as IAudioEncoderSettings;
}
#endregion
public EncoderSettings()
{
this.Init();
}
public EncoderSettings(AudioPCMConfig pcm)
{
this.Init(pcm);
}
}
}