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moving AccurateRipId calculations to CUETools.AccurateRip

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This commit is contained in:
chudov
2008-11-28 23:07:43 +00:00
parent d68737bd2e
commit 421364a64d
4 changed files with 39 additions and 67 deletions
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75
CUETools.AccurateRip/AccurateRip.cs
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@@ -362,49 +362,42 @@ namespace CUETools.AccurateRip
}
}
//private string CalculateAccurateRipId()
//{
// // Calculate the three disc ids used by AR
// uint discId1 = 0;
// uint discId2 = 0;
// uint cddbDiscId = 0;
private static uint sumDigits(uint n)
{
uint r = 0;
while (n > 0)
{
r = r + (n % 10);
n = n / 10;
}
return r;
}
// for (int iTrack = 1; iTrack <= _toc.TrackCount; iTrack++)
// {
// discId1 += _toc[iTrack].Start;
// discId2 += (_toc[iTrack].Start == 0 ? 1 : _toc[iTrack].Start) * ((uint)iTrack);
// cddbDiscId += sumDigits(_toc[iTrack].Start / 75 + 2);
// }
// uint trackOffset = _toc.Length;
// if (_dataTrackLength.HasValue)
// {
// trackOffset += ((90 + 60) * 75) + 150; // 90 second lead-out, 60 second lead-in, 150 sector gap
// cddbDiscId += sumDigits((uint)(trackOffset / 75) + 2);
// trackOffset += _dataTrackLength.Value;
// }
// discId1 += trackOffset;
// discId2 += (trackOffset == 0 ? 1 : trackOffset) * ((uint)TrackCount + 1);
public static string CalculateCDDBId(CDImageLayout toc)
{
uint cddbDiscId = 0;
for (int iTrack = 1; iTrack <= toc.TrackCount; iTrack++)
cddbDiscId += sumDigits(toc[iTrack].Start / 75 + 2);
return string.Format("{0:X8}", ((cddbDiscId << 24) + ((toc.Length / 75 - toc[1].Start / 75) << 8) + (uint)toc.TrackCount) & 0xFFFFFFFF);
}
// if (!_dataTrackLength.HasValue && _cddbDiscIdTag != null)
// {
// uint cddbDiscIdNum = UInt32.Parse(_cddbDiscIdTag, NumberStyles.HexNumber);
// if ((cddbDiscIdNum & 0xff) == TrackCount + 1)
// {
// uint lengthFromTag = ((cddbDiscIdNum >> 8) & 0xffff);
// _minDataTrackLength = ((lengthFromTag + _toc[1].Start / 75) - 152) * 75 - trackOffset;
// }
// }
// cddbDiscId = ((cddbDiscId % 255) << 24) +
// ((trackOffset / 75 - _toc[1].Start / 75) << 8) +
// (uint)(TrackCount + (_dataTrackLength.HasValue ? 1 : 0));
// discId1 &= 0xFFFFFFFF;
// discId2 &= 0xFFFFFFFF;
// cddbDiscId &= 0xFFFFFFFF;
// return String.Format("{0:x8}-{1:x8}-{2:x8}", discId1, discId2, cddbDiscId);
//}
public static string CalculateAccurateRipId(CDImageLayout toc)
{
// Calculate the three disc ids used by AR
uint discId1 = 0;
uint discId2 = 0;
for (int iTrack = 1; iTrack <= toc.TrackCount; iTrack++)
if (toc[iTrack].IsAudio)
{
discId1 += toc[iTrack].Start;
discId2 += Math.Max(toc[iTrack].Start, 1) * toc[iTrack].Number;
}
discId1 += toc.Length;
discId2 += Math.Max(toc.Length, 1) * ((uint)toc.AudioTracks + 1);
discId1 &= 0xFFFFFFFF;
discId2 &= 0xFFFFFFFF;
return string.Format("{0:x8}-{1:x8}-{2}", discId1, discId2, CalculateCDDBId(toc).ToLower());
}
public List<AccDisk> AccDisks
{