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Fix pregap calculations when Q subchannel is BCD.

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This commit is contained in:
Natalia Portillo
2020-01-02 18:17:47 +00:00
parent 59eb326098
commit ebcb66f376
1 changed files with 21 additions and 8 deletions
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29
DiscImageChef.Core/Devices/Dumping/CompactDisc/Pregap.cs
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@@ -168,7 +168,20 @@ namespace DiscImageChef.Core.Devices.Dumping
{
cmdBuf[iq] = (byte)q[iq];
}
}
}
if(!sense)
{
// Q position
if((cmdBuf[0] & 0xF) != 1)
continue;
// Check if BCD or binary values, change to binary
int posQ = ((cmdBuf[7] * 60 * 75) + (cmdBuf[8] * 75) + cmdBuf[9]) - 150;
if(posQ > lba)
{
cmdBuf[1] = (byte)(((cmdBuf[1] / 16) * 10) + (cmdBuf[1] & 0x0F));
cmdBuf[2] = (byte)(((cmdBuf[2] / 16) * 10) + (cmdBuf[2] & 0x0F));
cmdBuf[3] = (byte)(((cmdBuf[3] / 16) * 10) + (cmdBuf[3] & 0x0F));
@@ -178,14 +191,9 @@ namespace DiscImageChef.Core.Devices.Dumping
cmdBuf[7] = (byte)(((cmdBuf[7] / 16) * 10) + (cmdBuf[7] & 0x0F));
cmdBuf[8] = (byte)(((cmdBuf[8] / 16) * 10) + (cmdBuf[8] & 0x0F));
cmdBuf[9] = (byte)(((cmdBuf[9] / 16) * 10) + (cmdBuf[9] & 0x0F));
}
}
if(!sense)
{
// Q position
if((cmdBuf[0] & 0xF) != 1)
continue;
posQ = ((cmdBuf[7] * 60 * 75) + (cmdBuf[8] * 75) + cmdBuf[9]) - 150;
}
if(cmdBuf[1] != tracks[i].TrackSequence ||
cmdBuf[2] != 0)
@@ -199,12 +207,17 @@ namespace DiscImageChef.Core.Devices.Dumping
continue;
}
int pregapQ = (cmdBuf[3] * 60 * 75) + (cmdBuf[4] * 75) + cmdBuf[5];
int pregapQ = posQ > lba ? trackPregap : (cmdBuf[3] * 60 * 75) + (cmdBuf[4] * 75) + cmdBuf[5];
if(pregapQ > trackPregap)
trackPregap = pregapQ;
else
{
if(posQ == lba + 1)
trackPregap++;
break;
}
lba--;
}