public static CDPMA?Decode(byte[] CDPMAResponse)
{
if (CDPMAResponse == null ||
CDPMAResponse.Length <= 4)
{
return(null);
}
var decoded = new CDPMA
{
DataLength = BigEndianBitConverter.ToUInt16(CDPMAResponse, 0),
Reserved1 = CDPMAResponse[2],
Reserved2 = CDPMAResponse[3]
};
decoded.PMADescriptors = new CDPMADescriptors[(decoded.DataLength - 2) / 11];
if (decoded.PMADescriptors.Length == 0)
{
return(null);
}
if (decoded.DataLength + 2 != CDPMAResponse.Length)
{
AaruConsole.DebugWriteLine("CD PMA decoder",
"Expected CDPMA size ({0} bytes) is not received size ({1} bytes), not decoding",
decoded.DataLength + 2, CDPMAResponse.Length);
return(null);
}
for (int i = 0; i < (decoded.DataLength - 2) / 11; i++)
{
decoded.PMADescriptors[i].Reserved = CDPMAResponse[0 + (i * 11) + 4];
decoded.PMADescriptors[i].ADR = (byte)((CDPMAResponse[1 + (i * 11) + 4] & 0xF0) >> 4);
decoded.PMADescriptors[i].CONTROL = (byte)(CDPMAResponse[1 + (i * 11) + 4] & 0x0F);
decoded.PMADescriptors[i].TNO = CDPMAResponse[2 + (i * 11) + 4];
decoded.PMADescriptors[i].POINT = CDPMAResponse[3 + (i * 11) + 4];
decoded.PMADescriptors[i].Min = CDPMAResponse[4 + (i * 11) + 4];
decoded.PMADescriptors[i].Sec = CDPMAResponse[5 + (i * 11) + 4];
decoded.PMADescriptors[i].Frame = CDPMAResponse[6 + (i * 11) + 4];
decoded.PMADescriptors[i].HOUR = (byte)((CDPMAResponse[7 + (i * 11) + 4] & 0xF0) >> 4);
decoded.PMADescriptors[i].PHOUR = (byte)(CDPMAResponse[7 + (i * 11) + 4] & 0x0F);
decoded.PMADescriptors[i].PMIN = CDPMAResponse[8 + (i * 11) + 4];
decoded.PMADescriptors[i].PSEC = CDPMAResponse[9 + (i * 11) + 4];
decoded.PMADescriptors[i].PFRAME = CDPMAResponse[10 + (i * 11) + 4];
}
return(decoded);
}
public static string Prettify(CDPMA?CDPMAResponse)
{
if (CDPMAResponse == null)
{
return(null);
}
CDPMA response = CDPMAResponse.Value;
StringBuilder sb = new StringBuilder();
#if DEBUG
if (response.Reserved1 != 0)
{
sb.AppendFormat("Reserved1 = 0x{0:X2}", response.Reserved1).AppendLine();
}
if (response.Reserved2 != 0)
{
sb.AppendFormat("Reserved2 = 0x{0:X2}", response.Reserved2).AppendLine();
}
#endif
foreach (CDPMADescriptors descriptor in response.PMADescriptors)
{
#if DEBUG
if (descriptor.Reserved != 0)
{
sb.AppendFormat("Reserved = 0x{0:X2}", descriptor.Reserved).AppendLine();
}
#endif
switch (descriptor.ADR)
{
case 1:
if (descriptor.POINT > 0)
{
sb.AppendFormat("Track {0}", descriptor.POINT);
switch ((TocControl)(descriptor.CONTROL & 0x0D))
{
case TocControl.TwoChanNoPreEmph:
sb.Append(" (Stereo audio track with no pre-emphasis)");
break;
case TocControl.TwoChanPreEmph:
sb.Append(" (Stereo audio track with 50/15 μs pre-emphasis)");
break;
case TocControl.FourChanNoPreEmph:
sb.Append(" (Quadraphonic audio track with no pre-emphasis)");
break;
case TocControl.FourChanPreEmph:
sb.Append(" (Quadraphonic audio track with 50/15 μs pre-emphasis)");
break;
case TocControl.DataTrack:
sb.Append(" (Data track, recorded uninterrupted)");
break;
case TocControl.DataTrackIncremental:
sb.Append(" (Data track, recorded incrementally)");
break;
}
if (descriptor.PHOUR > 0)
{
sb.AppendFormat(" starts at {3}:{0:D2}:{1:D2}:{2:D2}", descriptor.PMIN, descriptor.PSEC,
descriptor.PFRAME, descriptor.PHOUR);
}
else
{
sb.AppendFormat(" starts at {0:D2}:{1:D2}:{2:D2}", descriptor.PMIN, descriptor.PSEC,
descriptor.PFRAME);
}
if (descriptor.PHOUR > 0)
{
sb.AppendFormat(" and ends at {3}:{0:D2}:{1:D2}:{2:D2}", descriptor.Min, descriptor.Sec,
descriptor.Frame, descriptor.HOUR);
}
else
{
sb.AppendFormat(" and ends at {0:D2}:{1:D2}:{2:D2}", descriptor.Min, descriptor.Sec,
descriptor.Frame);
}
sb.AppendLine();
}
else
{
goto default;
}
break;
case 2:
uint id = (uint)((descriptor.Min << 16) + (descriptor.Sec << 8) + descriptor.Frame);
sb.AppendFormat("Disc ID: {0:X6}", id & 0x00FFFFFF).AppendLine();
break;
case 3:
sb.AppendFormat("Skip track assignment {0} says that tracks ", descriptor.POINT);
if (descriptor.Min > 0)
{
sb.AppendFormat("{0} ", descriptor.Min);
}
if (descriptor.Sec > 0)
{
sb.AppendFormat("{0} ", descriptor.Sec);
}
if (descriptor.Frame > 0)
{
sb.AppendFormat("{0} ", descriptor.Frame);
}
if (descriptor.PMIN > 0)
{
sb.AppendFormat("{0} ", descriptor.PMIN);
}
if (descriptor.PSEC > 0)
{
sb.AppendFormat("{0} ", descriptor.PSEC);
}
if (descriptor.PFRAME > 0)
{
sb.AppendFormat("{0} ", descriptor.PFRAME);
}
sb.AppendLine("should be skipped");
break;
case 4:
sb.AppendFormat("Unskip track assignment {0} says that tracks ", descriptor.POINT);
if (descriptor.Min > 0)
{
sb.AppendFormat("{0} ", descriptor.Min);
}
if (descriptor.Sec > 0)
{
sb.AppendFormat("{0} ", descriptor.Sec);
}
if (descriptor.Frame > 0)
{
sb.AppendFormat("{0} ", descriptor.Frame);
}
if (descriptor.PMIN > 0)
{
sb.AppendFormat("{0} ", descriptor.PMIN);
}
if (descriptor.PSEC > 0)
{
sb.AppendFormat("{0} ", descriptor.PSEC);
}
if (descriptor.PFRAME > 0)
{
sb.AppendFormat("{0} ", descriptor.PFRAME);
}
sb.AppendLine("should not be skipped");
break;
case 5:
sb.AppendFormat("Skip time interval assignment {0} says that from ", descriptor.POINT);
if (descriptor.PHOUR > 0)
{
sb.AppendFormat("{3}:{0:D2}:{1:D2}:{2:D2} to ", descriptor.PMIN, descriptor.PSEC,
descriptor.PFRAME, descriptor.PHOUR);
}
else
{
sb.AppendFormat("{0:D2}:{1:D2}:{2:D2} to ", descriptor.PMIN, descriptor.PSEC,
descriptor.PFRAME);
}
if (descriptor.PHOUR > 0)
{
sb.AppendFormat("{3}:{0:D2}:{1:D2}:{2:D2} ", descriptor.Min, descriptor.Sec,
descriptor.Frame, descriptor.HOUR);
}
else
{
sb.AppendFormat("{0:D2}:{1:D2}:{2:D2} ", descriptor.Min, descriptor.Sec, descriptor.Frame);
}
sb.AppendLine("should be skipped");
break;
case 6:
sb.AppendFormat("Unskip time interval assignment {0} says that from ", descriptor.POINT);
if (descriptor.PHOUR > 0)
{
sb.AppendFormat("{3}:{0:D2}:{1:D2}:{2:D2} to ", descriptor.PMIN, descriptor.PSEC,
descriptor.PFRAME, descriptor.PHOUR);
}
else
{
sb.AppendFormat("{0:D2}:{1:D2}:{2:D2} to ", descriptor.PMIN, descriptor.PSEC,
descriptor.PFRAME);
}
if (descriptor.PHOUR > 0)
{
sb.AppendFormat("{3}:{0:D2}:{1:D2}:{2:D2} ", descriptor.Min, descriptor.Sec,
descriptor.Frame, descriptor.HOUR);
}
else
{
sb.AppendFormat("{0:D2}:{1:D2}:{2:D2} ", descriptor.Min, descriptor.Sec, descriptor.Frame);
}
sb.AppendLine("should not be skipped");
break;
default:
sb.AppendFormat("ADR = {0}", descriptor.ADR).AppendLine();
sb.AppendFormat("CONTROL = {0}", descriptor.CONTROL).AppendLine();
sb.AppendFormat("TNO = {0}", descriptor.TNO).AppendLine();
sb.AppendFormat("POINT = {0}", descriptor.POINT).AppendLine();
sb.AppendFormat("Min = {0}", descriptor.Min).AppendLine();
sb.AppendFormat("Sec = {0}", descriptor.Sec).AppendLine();
sb.AppendFormat("Frame = {0}", descriptor.Frame).AppendLine();
sb.AppendFormat("HOUR = {0}", descriptor.HOUR).AppendLine();
sb.AppendFormat("PHOUR = {0}", descriptor.PHOUR).AppendLine();
sb.AppendFormat("PMIN = {0}", descriptor.PMIN).AppendLine();
sb.AppendFormat("PSEC = {0}", descriptor.PSEC).AppendLine();
sb.AppendFormat("PFRAME = {0}", descriptor.PFRAME).AppendLine();
break;
}
}
return(sb.ToString());
}