public static List <XRITBaseHeader> GetHeaderData(byte[] data)
{
List <XRITBaseHeader> headers = new List <XRITBaseHeader>();
int maxLength = data.Length; // Initial Guess
int c = 0;
// Parse Primary Header for size
int type = data[0];
if (type != (int)HeaderType.PrimaryHeader)
{
UIConsole.Error($"Expected PrimaryHeader({(int)HeaderType.PrimaryHeader} got {type}. File is corrupt.");
return(headers);
}
byte[] tmp = data.Skip(1).Take(2).ToArray();
if (BitConverter.IsLittleEndian)
{
Array.Reverse(tmp);
}
int size = BitConverter.ToUInt16(tmp, 0);
tmp = data.Take(size).ToArray();
PrimaryRecord fh = LLTools.ByteArrayToStruct <PrimaryRecord>(tmp);
fh = LLTools.StructToSystemEndian(fh);
maxLength = (int)fh.HeaderLength; // Set the correct size
byte[] headerData = data.Take(maxLength).ToArray();
data = data.Skip(maxLength).ToArray();
// Parse Secondary Headers
while (c < maxLength)
{
type = headerData[0];
tmp = headerData.Skip(1).Take(2).ToArray();
if (BitConverter.IsLittleEndian)
{
Array.Reverse(tmp);
}
size = BitConverter.ToUInt16(tmp, 0);
tmp = headerData.Take(size).ToArray();
if (tmp.Length < size)
{
UIConsole.Warn($"Not enough data for unpack header: Expected {size} got {tmp.Length} - Header Type: {type} - File might be corrupted.");
if (c + size > maxLength)
{
UIConsole.Debug($"c + size > maxLength: {c} + {size} > {maxLength}");
size = maxLength - c - 1;
c = maxLength;
}
}
else
{
c += size;
}
headerData = headerData.Skip(size).ToArray();
XRITBaseHeader h;
switch (type)
{
case (int)HeaderType.PrimaryHeader:
fh = LLTools.ByteArrayToStruct <PrimaryRecord>(tmp);
fh = LLTools.StructToSystemEndian(fh);
h = new PrimaryHeader(fh);
maxLength = (int)fh.HeaderLength; // Set the correct size
break;
case (int)HeaderType.ImageStructureRecord:
ImageStructureRecord isr = LLTools.ByteArrayToStruct <ImageStructureRecord>(tmp);
isr = LLTools.StructToSystemEndian(isr);
h = new ImageStructureHeader(isr);
break;
case (int)HeaderType.ImageNavigationRecord:
ImageNavigationRecord inr = LLTools.ByteArrayToStruct <ImageNavigationRecord>(tmp);
inr = LLTools.StructToSystemEndian(inr);
h = new ImageNavigationHeader(inr);
break;
case (int)HeaderType.ImageDataFunctionRecord:
// Cannot marshable due variable length
//ImageDataFunctionRecord idfr = LLTools.ByteArrayToStruct<ImageDataFunctionRecord>(tmp);
//idfr = LLTools.StructToSystemEndian(idfr);
ImageDataFunctionRecord idfr = new ImageDataFunctionRecord();
idfr.Data = System.Text.Encoding.UTF8.GetString(tmp.Skip(3).ToArray());
h = new ImageDataFunctionHeader(idfr);
break;
case (int)HeaderType.AnnotationRecord:
// Cannot be marshalled due variable length
//AnnotationRecord ar = LLTools.ByteArrayToStruct<AnnotationRecord>(tmp);
//ar = LLTools.StructToSystemEndian(ar);
AnnotationRecord ar = new AnnotationRecord();
ar.Filename = System.Text.Encoding.UTF8.GetString(tmp.Skip(3).ToArray());
h = new AnnotationHeader(ar);
break;
case (int)HeaderType.TimestampRecord:
TimestampRecord tr = LLTools.ByteArrayToStruct <TimestampRecord>(tmp);
tr = LLTools.StructToSystemEndian(tr);
h = new TimestampHeader(tr);
break;
case (int)HeaderType.AncillaryTextRecord:
// Cannot be marshalled due variable length.
// AncillaryText at = LLTools.ByteArrayToStruct<AncillaryText>(tmp);
//at = LLTools.StructToSystemEndian(at);
AncillaryText at = new AncillaryText();
at.Data = System.Text.Encoding.UTF8.GetString(tmp.Skip(3).ToArray());
h = new AncillaryHeader(at);
break;
case (int)HeaderType.KeyRecord:
h = new XRITBaseHeader(HeaderType.KeyRecord, tmp);
break;
case (int)HeaderType.SegmentIdentificationRecord:
SegmentIdentificationRecord sir = LLTools.ByteArrayToStruct <SegmentIdentificationRecord>(tmp);
sir = LLTools.StructToSystemEndian(sir);
h = new SegmentIdentificationHeader(sir);
break;
case (int)HeaderType.NOAASpecificHeader:
NOAASpecificRecord nsr = LLTools.ByteArrayToStruct <NOAASpecificRecord>(tmp);
nsr = LLTools.StructToSystemEndian(nsr);
h = new NOAASpecificHeader(nsr);
break;
case (int)HeaderType.HeaderStructuredRecord:
// Cannot be marshalled due variable length
//HeaderStructuredRecord hsr = LLTools.ByteArrayToStruct<HeaderStructuredRecord>(tmp);
//hsr = LLTools.StructToSystemEndian(hsr); // Header Structured Record doesn't have endianess dependant fields
HeaderStructuredRecord hsr = new HeaderStructuredRecord();
hsr.Data = System.Text.Encoding.UTF8.GetString(tmp.Skip(3).ToArray());
h = new HeaderStructuredHeader(hsr);
break;
case (int)HeaderType.RiceCompressionRecord:
RiceCompressionRecord rcr = LLTools.ByteArrayToStruct <RiceCompressionRecord>(tmp);
rcr = LLTools.StructToSystemEndian(rcr);
h = new RiceCompressionHeader(rcr);
break;
case (int)HeaderType.DCSFileNameRecord:
// Cannot be marshalled due variable length
//DCSFilenameRecord dfr = LLTools.ByteArrayToStruct<DCSFilenameRecord>(tmp);
//dfr = LLTools.StructToSystemEndian(dfr); // DCS Filename Record doesn't have endianess dependant fields
DCSFilenameRecord dfr = new DCSFilenameRecord();
dfr.Filename = System.Text.Encoding.UTF8.GetString(tmp.Skip(3).ToArray());
h = new DCSFilenameHeader(dfr);
break;
case (int)HeaderType.Head9:
Head9 h9 = new Head9();
h9.Data = tmp.Skip(3).ToArray();
h = new Head9Header(h9);
((Head9Header)h).FileName = $"buggy_file_{LLTools.TimestampMS()}.lrit";
tmp.Skip(3).ToArray().Separate(new byte[] { 0x00 }).ToList().ForEach((barr) => {
if (barr.Length > 0 && barr[0] == 0x1F)
{
((Head9Header)h).FileName = System.Text.Encoding.UTF8.GetString(barr.Skip(1).ToArray());
((Head9Header)h).FileName = LLTools.StripNonPrintable(((Head9Header)h).FileName);
}
});
UIConsole.Debug($"Got Head9 which may be a bug. Filename: {((Head9Header)h).FileName}");
break;
default:
h = new XRITBaseHeader();
h.Type = HeaderType.Unknown;
break;
}
h.RawData = tmp;
headers.Add(h);
}
return(headers);
}
public static List <XRITBaseHeader> GetHeaderData(byte[] data)
{
List <XRITBaseHeader> headers = new List <XRITBaseHeader>();
int maxLength = data.Length; // Initial Guess
int c = 0;
while (c < maxLength)
{
int type = data[0];
byte[] tmp = data.Skip(1).Take(2).ToArray();
if (BitConverter.IsLittleEndian)
{
Array.Reverse(tmp);
}
int size = BitConverter.ToUInt16(tmp, 0);
tmp = data.Take(size).ToArray();
if (tmp.Length < size)
{
Console.WriteLine("Not enough data for unpack header: Expected {0} got {1}", size, tmp.Length);
break;
}
XRITBaseHeader h;
switch (type)
{
case (int)HeaderType.PrimaryHeader:
PrimaryRecord fh = LLTools.ByteArrayToStruct <PrimaryRecord>(tmp);
fh = LLTools.StructToSystemEndian(fh);
h = new PrimaryHeader(fh);
maxLength = (int)fh.HeaderLength; // Set the correct size
break;
case (int)HeaderType.ImageStructureRecord:
ImageStructureRecord isr = LLTools.ByteArrayToStruct <ImageStructureRecord>(tmp);
isr = LLTools.StructToSystemEndian(isr);
h = new ImageStructureHeader(isr);
break;
case (int)HeaderType.ImageNavigationRecord:
ImageNavigationRecord inr = LLTools.ByteArrayToStruct <ImageNavigationRecord>(tmp);
inr = LLTools.StructToSystemEndian(inr);
h = new ImageNavigationHeader(inr);
break;
case (int)HeaderType.ImageDataFunctionRecord:
// Cannot marshable due variable length
//ImageDataFunctionRecord idfr = LLTools.ByteArrayToStruct<ImageDataFunctionRecord>(tmp);
//idfr = LLTools.StructToSystemEndian(idfr);
ImageDataFunctionRecord idfr = new ImageDataFunctionRecord();
idfr.Data = System.Text.Encoding.UTF8.GetString(tmp.Skip(3).ToArray());
h = new ImageDataFunctionHeader(idfr);
break;
case (int)HeaderType.AnnotationRecord:
// Cannot be marshalled due variable length
//AnnotationRecord ar = LLTools.ByteArrayToStruct<AnnotationRecord>(tmp);
//ar = LLTools.StructToSystemEndian(ar);
AnnotationRecord ar = new AnnotationRecord();
ar.Filename = System.Text.Encoding.UTF8.GetString(tmp.Skip(3).ToArray());
h = new AnnotationHeader(ar);
break;
case (int)HeaderType.TimestampRecord:
TimestampRecord tr = LLTools.ByteArrayToStruct <TimestampRecord>(tmp);
tr = LLTools.StructToSystemEndian(tr);
h = new TimestampHeader(tr);
break;
case (int)HeaderType.AncillaryTextRecord:
// Cannot be marshalled due variable length.
// AncillaryText at = LLTools.ByteArrayToStruct<AncillaryText>(tmp);
//at = LLTools.StructToSystemEndian(at);
AncillaryText at = new AncillaryText();
at.Data = System.Text.Encoding.UTF8.GetString(tmp.Skip(3).ToArray());
h = new AncillaryHeader(at);
break;
case (int)HeaderType.KeyRecord:
h = new XRITBaseHeader(HeaderType.KeyRecord, tmp);
break;
case (int)HeaderType.SegmentIdentificationRecord:
SegmentIdentificationRecord sir = LLTools.ByteArrayToStruct <SegmentIdentificationRecord>(tmp);
sir = LLTools.StructToSystemEndian(sir);
h = new SegmentIdentificationHeader(sir);
break;
case (int)HeaderType.NOAASpecificHeader:
NOAASpecificRecord nsr = LLTools.ByteArrayToStruct <NOAASpecificRecord>(tmp);
nsr = LLTools.StructToSystemEndian(nsr);
h = new NOAASpecificHeader(nsr);
break;
case (int)HeaderType.HeaderStructuredRecord:
// Cannot be marshalled due variable length
//HeaderStructuredRecord hsr = LLTools.ByteArrayToStruct<HeaderStructuredRecord>(tmp);
//hsr = LLTools.StructToSystemEndian(hsr); // Header Structured Record doesn't have endianess dependant fields
HeaderStructuredRecord hsr = new HeaderStructuredRecord();
hsr.Data = System.Text.Encoding.UTF8.GetString(tmp.Skip(3).ToArray());
h = new HeaderStructuredHeader(hsr);
break;
case (int)HeaderType.RiceCompressionRecord:
RiceCompressionRecord rcr = LLTools.ByteArrayToStruct <RiceCompressionRecord>(tmp);
rcr = LLTools.StructToSystemEndian(rcr);
h = new RiceCompressionHeader(rcr);
break;
case (int)HeaderType.DCSFileNameRecord:
// Cannot be marshalled due variable length
//DCSFilenameRecord dfr = LLTools.ByteArrayToStruct<DCSFilenameRecord>(tmp);
//dfr = LLTools.StructToSystemEndian(dfr); // DCS Filename Record doesn't have endianess dependant fields
DCSFilenameRecord dfr = new DCSFilenameRecord();
dfr.Filename = System.Text.Encoding.UTF8.GetString(tmp.Skip(3).ToArray());
h = new DCSFilenameHeader(dfr);
break;
default:
h = new XRITBaseHeader();
h.Type = HeaderType.Unknown;
break;
}
h.RawData = tmp;
headers.Add(h);
c += size;
data = data.Skip(size).ToArray();
}
return(headers);
}