+guint32 gdcmHeader::FindLengthOB(void) {
+ // See PS 3.5-2001, section A.4 p. 49 on encapsulation of encoded pixel data.
+ guint16 g;
+ guint16 n;
+ long PositionOnEntry = ftell(fp);
+ bool FoundSequenceDelimiter = false;
+ guint32 TotalLength = 0;
+ guint32 ItemLength;
+
+ while ( ! FoundSequenceDelimiter) {
+ g = ReadInt16();
+ n = ReadInt16();
+ TotalLength += 4; // We even have to decount the group and element
+ if ( g != 0xfffe ) {
+ dbg.Verbose(1, "gdcmHeader::FindLengthOB: ",
+ "wrong group for an item sequence.");
+ throw Error::FileReadError(fp, "gdcmHeader::FindLengthOB");
+ }
+ if ( n == 0xe0dd )
+ FoundSequenceDelimiter = true;
+ else if ( n != 0xe000) {
+ dbg.Verbose(1, "gdcmHeader::FindLengthOB: ",
+ "wrong element for an item sequence.");
+ throw Error::FileReadError(fp, "gdcmHeader::FindLengthOB");
+ }
+ ItemLength = ReadInt32();
+ TotalLength += ItemLength + 4; // We add 4 bytes since we just read
+ // the ItemLength with ReadInt32
+ SkipBytes(ItemLength);
+ }
+ fseek(fp, PositionOnEntry, SEEK_SET);
+ return TotalLength;
+}
+
+void gdcmHeader::FindLength(ElValue * ElVal) {