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Fix file offsets when reading multisession CloneCD disc images.

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This commit is contained in:
Natalia Portillo
2021-07-11 19:23:18 +01:00
parent d3b118d70d
commit 75e5487535
1 changed files with 19 additions and 2 deletions
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21
Aaru.Images/CloneCD/Read.cs
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@@ -547,13 +547,30 @@ namespace Aaru.DiscImages
{
tmpTrack.TrackFileOffset = currentDataOffset;
currentDataOffset += 2352 * (tmpTrack.TrackEndSector - tmpTrack.TrackStartSector + 1);
currentDataOffset += 2352 * (tmpTrack.TrackEndSector - (ulong)tmpTrack.Indexes[1] + 1);
if(_subFilter != null)
{
tmpTrack.TrackSubchannelOffset = currentSubchannelOffset;
currentSubchannelOffset += 96 * (tmpTrack.TrackEndSector - tmpTrack.TrackStartSector + 1);
currentSubchannelOffset += 96 * (tmpTrack.TrackEndSector - (ulong)tmpTrack.Indexes[1] + 1);
}
if(tmpTrack.Indexes.TryGetValue(0, out int idx0))
{
if(idx0 < 0)
{
tmpTrack.TrackFileOffset = 0;
tmpTrack.TrackSubchannelOffset = 0;
}
else
{
int indexDifference = tmpTrack.Indexes[1] - idx0;
tmpTrack.TrackFileOffset -= (ulong)(2352 * indexDifference);
if(_subFilter != null)
tmpTrack.TrackSubchannelOffset -= (ulong)(96 * indexDifference);
}
}
if(tmpTrack.TrackType == TrackType.Data)