DJITxtParser.hh File Reference

#include <sys/types.h>
#include <stdlib.h>

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Data Structures
class	DJITxtParser

Macros
#define	DEBUG_RECORD_PARSING   1
#define	END_OF_DATA   1

Functions
u_int8_t	getByte (u_int8_t const *&ptr, u_int8_t const *limit=NULL)
u_int16_t	get2BytesBE (u_int8_t const *&ptr, u_int8_t const *limit=NULL)
u_int16_t	get2BytesLE (u_int8_t const *&ptr, u_int8_t const *limit=NULL)
unsigned	getWord32BE (u_int8_t const *&ptr, u_int8_t const *limit=NULL)
unsigned	getWord32LE (u_int8_t const *&ptr, u_int8_t const *limit=NULL)
u_int64_t	getWord64LE (u_int8_t const *&ptr, u_int8_t const *limit=NULL)
void	printString (char const *label, u_int8_t const *&ptr, unsigned stringLength, u_int8_t const *limit=NULL)
void	printHex (char const *label, u_int8_t const *&ptr, u_int8_t const *limit)

Macro Definition Documentation

DEBUG_RECORD_PARSING

#define DEBUG_RECORD_PARSING   1

Definition at line 33 of file DJITxtParser.hh.

END_OF_DATA

#define END_OF_DATA   1

Definition at line 47 of file DJITxtParser.hh.

Function Documentation

get2BytesBE()

u_int16_t get2BytesBE	(	u_int8_t const *&	ptr,
		u_int8_t const *	limit = NULL
	)

Definition at line 34 of file DJITxtParser.cpp.

                                                                   {
  if (limit != NULL && ptr+2 > limit) throw END_OF_DATA;
  u_int8_t byte1 = *ptr++;
  u_int8_t byte2 = *ptr++;
  return (byte1<<8)|byte2;
}

References END_OF_DATA.

Referenced by RecordAndDetailsParser::parseRecord(), and RecordAndDetailsParser::parseRecord_JPEG().

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get2BytesLE()

u_int16_t get2BytesLE	(	u_int8_t const *&	ptr,
		u_int8_t const *	limit = NULL
	)

Definition at line 41 of file DJITxtParser.cpp.

                                                                   {
  if (limit != NULL && ptr+2 > limit) throw END_OF_DATA;
  u_int8_t byte1 = *ptr++;
  u_int8_t byte2 = *ptr++;
  return (byte2<<8)|byte1;
}

References END_OF_DATA.

Referenced by main(), RecordAndDetailsParser::note2ByteDateField(), RecordAndDetailsParser::note2ByteField(), and RecordAndDetailsParser::parseRecord_COMPONENT().

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getByte()

u_int8_t getByte	(	u_int8_t const *&	ptr,
		u_int8_t const *	limit = NULL
	)

Definition at line 29 of file DJITxtParser.cpp.

                                                              {
  if (limit != NULL && ptr+1 > limit) throw END_OF_DATA;
  return *ptr++;
}

References END_OF_DATA.

Referenced by RecordAndDetailsParser::note3ByteVersionField(), RecordAndDetailsParser::noteByteField(), RecordAndDetailsParser::parseRecord(), RecordAndDetailsParser::parseRecord_COMPONENT(), RecordAndDetailsParser::parseRecord_DEFORM(), RecordAndDetailsParser::parseRecord_GIMBAL(), RecordAndDetailsParser::parseRecord_HOME(), RecordAndDetailsParser::parseRecord_OSD(), RecordAndDetailsParser::parseRecord_RC(), and RecordAndDetailsParser::parseRecord_SMART_BATTERY().

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getWord32BE()

unsigned getWord32BE	(	u_int8_t const *&	ptr,
		u_int8_t const *	limit = NULL
	)

Definition at line 48 of file DJITxtParser.cpp.

                                                                  {
  if (limit != NULL && ptr+4 > limit) throw END_OF_DATA;
  unsigned result = (ptr[0]<<24)|(ptr[1]<<16)|(ptr[2]<<8)|ptr[3];
  ptr += 4;
  return result;
}

References END_OF_DATA.

getWord32LE()

unsigned getWord32LE	(	u_int8_t const *&	ptr,
		u_int8_t const *	limit = NULL
	)

Definition at line 55 of file DJITxtParser.cpp.

                                                                  {
  if (limit != NULL && ptr+4 > limit) throw END_OF_DATA;
  unsigned result = (ptr[3]<<24)|(ptr[2]<<16)|(ptr[1]<<8)|ptr[0];
  ptr += 4;
  return result;
}

References END_OF_DATA.

Referenced by getWord64LE(), RecordAndDetailsParser::note4ByteField(), and RecordAndDetailsParser::note4ByteFloatField().

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getWord64LE()

u_int64_t getWord64LE	(	u_int8_t const *&	ptr,
		u_int8_t const *	limit = NULL
	)

Definition at line 62 of file DJITxtParser.cpp.

                                                                   {
  u_int64_t resultLow = getWord32LE(ptr, limit);
  u_int64_t resultHigh = getWord32LE(ptr, limit);
  return (resultHigh<<32)|resultLow;
}

References getWord32LE().

Referenced by main(), RecordAndDetailsParser::note8ByteDoubleField(), RecordAndDetailsParser::note8ByteLatitudeOrLongitudeFieldInDegrees(), RecordAndDetailsParser::note8ByteLatitudeOrLongitudeFieldInRadians(), and RecordAndDetailsParser::note8ByteTimestampField().

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printHex()

void printHex	(	char const *	label,
		u_int8_t const *&	ptr,
		u_int8_t const *	limit
	)

Definition at line 83 of file DJITxtParser.cpp.

                                                                              {
  if (limit == NULL) return;
  if (label != NULL) fprintf(stderr, "%s: ", label);
  for (u_int8_t const* p = ptr; p < limit; ++p) fprintf(stderr, ":%02x", *p);
  fprintf(stderr, "\n");
}

Referenced by RecordAndDetailsParser::parseRecordUnknownFormat().

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printString()

void printString	(	char const *	label,
		u_int8_t const *&	ptr,
		unsigned	stringLength,
		u_int8_t const *	limit = NULL
	)

Definition at line 68 of file DJITxtParser.cpp.

                                                                                                        {
  if (limit != NULL && ptr+stringLength > limit) throw END_OF_DATA;

  char str[stringLength+1];
  unsigned i;
  for (i = 0; i < stringLength; ++i) str[i] = *ptr++;
  str[i] = '\0';

  if (label == NULL) {
    fprintf(stderr, "%s\n", str);
  } else {
    fprintf(stderr, "%s: %s\n", label, str);
  }
}

References END_OF_DATA.