public TiffIFD(ref byte[] content, uint adressOffset, bool ISBigEndian)
{
uint ifdEnd;
if (ISBigEndian)
{
tagCount = BitConverter.ToUInt16(new byte[] { content[adressOffset + 1], content[adressOffset] }, 0);
ifdEnd = adressOffset + (uint)(tagCount * 12 + 6);
NextIFDOffset = BitConverter.ToUInt32(new byte[] { content[ifdEnd - 1], content[ifdEnd - 2], content[ifdEnd - 3], content[ifdEnd - 4] }, 0);
}
else
{
tagCount = BitConverter.ToUInt16(new byte[] { content[adressOffset], content[adressOffset + 1] }, 0);
ifdEnd = adressOffset + (uint)(tagCount * 12 + 6);
NextIFDOffset = BitConverter.ToUInt32(new byte[] { content[ifdEnd - 4], content[ifdEnd - 3], content[ifdEnd - 2], content[ifdEnd - 1] }, 0);
}
tiffTags = new TiffTag[tagCount];
for (int miind = 0; miind < tagCount; miind++)
{
byte[] bArray = new byte[12];
tiffTags[miind] = new TiffTag(ref content, (uint)(adressOffset + 2 + miind * 12), ISBigEndian);
}
var tIFD = (from t in tiffTags where t.TagID == 330 select t).FirstOrDefault();
HasSubIFD = tIFD != null && tIFD.TagID == 330;
if (HasSubIFD)
{
SubIFDS = new TiffIFD[tIFD.DataCount];
}
}
private TiffIFD[] FillTifID(uint adressIFD)
{
bool moreIFD = true;
List <TiffIFD> tiffIFDs = new List <TiffIFD>();
do
{
TiffIFD ifd = FillIFD(adressIFD);
tiffIFDs.Add(ifd);
if (ifd.NextIFDOffset == 0)
{
moreIFD = false;
}
else
{
adressIFD = ifd.NextIFDOffset;
}
} while (moreIFD);
return(tiffIFDs.ToArray());
}
private TiffIFD FillIFD(uint adressIFD)
{
ushort tagCount;
if (ISBigEndian)
{
tagCount = BitConverter.ToUInt16(new byte[] { _content[adressIFD + 1], _content[adressIFD] }, 0);
}
else
{
tagCount = BitConverter.ToUInt16(new byte[] { _content[adressIFD], _content[adressIFD + 1] }, 0);
}
var ifd = new TiffIFD(ref _content, adressIFD, ISBigEndian);
//var isDNG = (from tt in ifd.tiffTags where tt.TagID == 50706 select tt).FirstOrDefault().TagID != 50706;
var makeValue = (from tt in ifd.tiffTags where tt.TagID == 271 select tt.TagValue).FirstOrDefault();
if (makeValue != null)
{
switch (makeValue.ToString())
{
case string a when a.ToUpper().Contains("NIKON"):
_rawType = RawType.NEF;
break;
case string a when a.ToUpper().Contains("SONY"):
_rawType = RawType.ARW;
break;
case string a when a.ToUpper().Contains("CANON"):
_rawType = RawType.CR2;
break;
case string a when a.ToUpper().Contains("HASSELBLAD"):
_rawType = RawType.Hasselblad;
break;
}
}
//if (isDNG)
// _rawType = RawType.DNG;
if (ifd.HasSubIFD)
{
var tIFD = (from t in ifd.tiffTags where t.TagID == 330 select t).FirstOrDefault();
var Model = (from t in ifd.tiffTags where t.TagID == 272 select t.TagValue).FirstOrDefault().ToString();
List <TiffIFD> lstsubID = new List <TiffIFD>();
for (int miind = 0; miind < tIFD.DataCount; miind++)
{
uint SubifdOffset;
if (ISBigEndian)
{
SubifdOffset = BitConverter.ToUInt32(new byte[] { _content[(4 * miind) + tIFD.DataOffset + 3], _content[(4 * miind) + tIFD.DataOffset + 2], _content[(4 * miind) + tIFD.DataOffset + 1], _content[(4 * miind) + tIFD.DataOffset] }, 0);
}
else
{
SubifdOffset = BitConverter.ToUInt32(new byte[] { _content[(4 * miind) + tIFD.DataOffset], _content[(4 * miind) + tIFD.DataOffset + 1], _content[(4 * miind) + tIFD.DataOffset + 2], _content[(4 * miind) + tIFD.DataOffset + 3] }, 0);
}
if (_rawType == RawType.ARW || Model.ToUpper().Contains("HASSELBLAD X1D\0"))
{
SubifdOffset = tIFD.DataOffset;
}
lstsubID.Add(FillIFD(SubifdOffset));
}
ifd.SubIFDS = lstsubID.ToArray();
}
return(ifd);
}