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CD parity information database

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This commit is contained in:
chudov
2010-02-23 15:15:08 +00:00
parent b613227ada
commit 5b9b266de5
45 changed files with 2017 additions and 793 deletions
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31
CUETools.AccurateRip/AccurateRip.cs
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@@ -11,8 +11,9 @@ namespace CUETools.AccurateRip
{
public class AccurateRipVerify : IAudioDest
{
public AccurateRipVerify(CDImageLayout toc)
public AccurateRipVerify(CDImageLayout toc, IWebProxy proxy)
{
this.proxy = proxy;
_toc = toc;
_accDisks = new List<AccDisk>();
_crc32 = new Crc32();
@@ -302,7 +303,7 @@ namespace CUETools.AccurateRip
/// <param name="count"></param>
/// <param name="currentOffset"></param>
/// <param name="offs"></param>
public unsafe void CalculateCRCs(int* pSampleBuff, int count, int currentOffset, int offs)
public unsafe void CalculateCRCs(uint* pSampleBuff, int count, int currentOffset, int offs)
{
uint crcar = _CRCAR[_currentTrack, 0];
uint crcsm = _CRCSM[_currentTrack, 0];
@@ -322,7 +323,11 @@ namespace CUETools.AccurateRip
_CRCNL[_currentTrack, offs + i] = crcnl;
}
uint lo = (uint)*(pSampleBuff++);
uint sample = *(pSampleBuff++);
crcsm += sample;
crcar += sample * (uint)(currentOffset + i + 1);
uint lo = sample & 0xffff;
crc32 = (crc32 >> 8) ^ t[(byte)(crc32 ^ lo)];
crc32 = (crc32 >> 8) ^ t[(byte)(crc32 ^ (lo >> 8))];
if (lo != 0)
@@ -332,7 +337,7 @@ namespace CUETools.AccurateRip
}
else crcnl++;
uint hi = (uint)*(pSampleBuff++);
uint hi = sample >> 16;
crc32 = (crc32 >> 8) ^ t[(byte)(crc32 ^ hi)];
crc32 = (crc32 >> 8) ^ t[(byte)(crc32 ^ (hi >> 8))];
if (hi != 0)
@@ -341,10 +346,6 @@ namespace CUETools.AccurateRip
crcwn = (crcwn >> 8) ^ t[(byte)(crcwn ^ (hi >> 8))];
}
else crcnl++;
uint sampleValue = (lo & 0xffff) + (hi << 16);
crcsm += sampleValue;
crcar += sampleValue * (uint)(currentOffset + i + 1);
}
}
@@ -371,17 +372,17 @@ namespace CUETools.AccurateRip
unsafe
{
fixed (int* pSampleBuff = &sampleBuffer.Samples[pos, 0])
//fixed (byte* pByteBuff = &sampleBuffer.Bytes[pos * sampleBuffer.BlockAlign])
fixed (byte* pSampleBuff = &sampleBuffer.Bytes[pos * 4])
{
uint* samples = (uint*)pSampleBuff;
if (currentSector < 10)
CalculateCRCs(pSampleBuff, copyCount, currentOffset, currentOffset);
CalculateCRCs(samples, copyCount, currentOffset, currentOffset);
else if (remaingSectors < 10)
CalculateCRCs(pSampleBuff, copyCount, currentOffset, 20 * 588 - (int)_samplesRemTrack);
CalculateCRCs(samples, copyCount, currentOffset, 20 * 588 - (int)_samplesRemTrack);
else if (currentSector >= 445 && currentSector <= 455)
CalculateCRCs(pSampleBuff, copyCount, currentOffset, 20 * 588 + currentOffset - 445 * 588);
CalculateCRCs(samples, copyCount, currentOffset, 20 * 588 + currentOffset - 445 * 588);
else
CalculateCRCs(pSampleBuff, copyCount, currentOffset, -1);
CalculateCRCs(samples, copyCount, currentOffset, -1);
}
}
pos += copyCount;
@@ -442,6 +443,7 @@ namespace CUETools.AccurateRip
HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);
req.Method = "GET";
req.Proxy = proxy;
try
{
@@ -896,6 +898,7 @@ namespace CUETools.AccurateRip
private uint[,] _CacheCRCWN;
private uint[,] _CacheCRC32;
private uint[] _CRCLOG;
private IWebProxy proxy;
Crc32 _crc32;