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Assignments
Classes | Macros | Typedefs | Enumerations | Functions
jdmarker.cpp File Reference
#include "jinclude.h"
#include "jpeglib.h"

Classes

struct  my_marker_reader
 

Macros

#define JPEG_INTERNALS
 
#define INPUT_VARS(cinfo)
 
#define INPUT_SYNC(cinfo)
 
#define INPUT_RELOAD(cinfo)
 
#define MAKE_BYTE_AVAIL(cinfo, action)
 
#define INPUT_BYTE(cinfo, V, action)
 
#define INPUT_2BYTES(cinfo, V, action)
 
#define get_dac(cinfo)   skip_variable(cinfo)
 
#define APP0_DATA_LEN   14 /* Length of interesting data in APP0 */
 
#define APP14_DATA_LEN   12 /* Length of interesting data in APP14 */
 
#define APPN_DATA_LEN   14 /* Must be the largest of the above!! */
 

Typedefs

typedef my_marker_reader * my_marker_ptr
 

Enumerations

enum  JPEG_MARKER {
  M_SOF0 = 0xc0 , M_SOF1 = 0xc1 , M_SOF2 = 0xc2 , M_SOF3 = 0xc3 ,
  M_SOF5 = 0xc5 , M_SOF6 = 0xc6 , M_SOF7 = 0xc7 , M_JPG = 0xc8 ,
  M_SOF9 = 0xc9 , M_SOF10 = 0xca , M_SOF11 = 0xcb , M_SOF13 = 0xcd ,
  M_SOF14 = 0xce , M_SOF15 = 0xcf , M_DHT = 0xc4 , M_DAC = 0xcc ,
  M_RST0 = 0xd0 , M_RST1 = 0xd1 , M_RST2 = 0xd2 , M_RST3 = 0xd3 ,
  M_RST4 = 0xd4 , M_RST5 = 0xd5 , M_RST6 = 0xd6 , M_RST7 = 0xd7 ,
  M_SOI = 0xd8 , M_EOI = 0xd9 , M_SOS = 0xda , M_DQT = 0xdb ,
  M_DNL = 0xdc , M_DRI = 0xdd , M_DHP = 0xde , M_EXP = 0xdf ,
  M_APP0 = 0xe0 , M_APP1 = 0xe1 , M_APP2 = 0xe2 , M_APP3 = 0xe3 ,
  M_APP4 = 0xe4 , M_APP5 = 0xe5 , M_APP6 = 0xe6 , M_APP7 = 0xe7 ,
  M_APP8 = 0xe8 , M_APP9 = 0xe9 , M_APP10 = 0xea , M_APP11 = 0xeb ,
  M_APP12 = 0xec , M_APP13 = 0xed , M_APP14 = 0xee , M_APP15 = 0xef ,
  M_JPG0 = 0xf0 , M_JPG13 = 0xfd , M_COM = 0xfe , M_TEM = 0x01 ,
  M_ERROR = 0x100
}
 

Functions

 get_soi (j_decompress_ptr cinfo)
 
 get_sof (j_decompress_ptr cinfo, boolean is_prog, boolean is_arith)
 
 get_sos (j_decompress_ptr cinfo)
 
 get_dht (j_decompress_ptr cinfo)
 
 get_dqt (j_decompress_ptr cinfo)
 
 get_dri (j_decompress_ptr cinfo)
 
 examine_app0 (j_decompress_ptr cinfo, JOCTET FAR *data, unsigned int datalen, INT32 remaining)
 
 examine_app14 (j_decompress_ptr cinfo, JOCTET FAR *data, unsigned int datalen, INT32 remaining)
 
 get_interesting_appn (j_decompress_ptr cinfo)
 
 skip_variable (j_decompress_ptr cinfo)
 
 next_marker (j_decompress_ptr cinfo)
 
 first_marker (j_decompress_ptr cinfo)
 
 read_markers (j_decompress_ptr cinfo)
 
 read_restart_marker (j_decompress_ptr cinfo)
 
 jpeg_resync_to_restart (j_decompress_ptr cinfo, int desired)
 
 reset_marker_reader (j_decompress_ptr cinfo)
 
 jinit_marker_reader (j_decompress_ptr cinfo)
 
 jpeg_set_marker_processor (j_decompress_ptr cinfo, int marker_code, jpeg_marker_parser_method routine)
 

Macro Definition Documentation

◆ APP0_DATA_LEN

#define APP0_DATA_LEN   14 /* Length of interesting data in APP0 */

◆ APP14_DATA_LEN

#define APP14_DATA_LEN   12 /* Length of interesting data in APP14 */

◆ APPN_DATA_LEN

#define APPN_DATA_LEN   14 /* Must be the largest of the above!! */

◆ get_dac

#define get_dac ( cinfo)    skip_variable(cinfo)

◆ INPUT_2BYTES

#define INPUT_2BYTES ( cinfo,
V,
action )
Value:
MAKESTMT( MAKE_BYTE_AVAIL(cinfo,action); \
bytes_in_buffer--; \
V = ((unsigned int) GETJOCTET(*next_input_byte++)) << 8; \
MAKE_BYTE_AVAIL(cinfo,action); \
bytes_in_buffer--; \
V += GETJOCTET(*next_input_byte++); )
MAKE_BYTE_AVAIL
#define MAKE_BYTE_AVAIL(cinfo, action)
Definition jdmarker.cpp:138
MAKESTMT
#define MAKESTMT(stuff)
Definition jerror.h:235
GETJOCTET
#define GETJOCTET(value)
Definition jmorecfg.h:119

◆ INPUT_BYTE

#define INPUT_BYTE ( cinfo,
V,
action )
Value:
MAKESTMT( MAKE_BYTE_AVAIL(cinfo,action); \
bytes_in_buffer--; \
V = GETJOCTET(*next_input_byte++); )

◆ INPUT_RELOAD

#define INPUT_RELOAD ( cinfo)
Value:
( next_input_byte = datasrc->next_input_byte, \
bytes_in_buffer = datasrc->bytes_in_buffer )

◆ INPUT_SYNC

#define INPUT_SYNC ( cinfo)
Value:
( datasrc->next_input_byte = next_input_byte, \
datasrc->bytes_in_buffer = bytes_in_buffer )

◆ INPUT_VARS

#define INPUT_VARS ( cinfo)
Value:
struct jpeg_source_mgr * datasrc = (cinfo)->src; \
const JOCTET * next_input_byte = datasrc->next_input_byte; \
size_t bytes_in_buffer = datasrc->bytes_in_buffer
JOCTET
char JOCTET
Definition jmorecfg.h:115
jpeg_source_mgr
Definition jpeglib.h:725
jpeg_source_mgr::bytes_in_buffer
size_t bytes_in_buffer
Definition jpeglib.h:727
jpeg_source_mgr::next_input_byte
const JOCTET * next_input_byte
Definition jpeglib.h:726

◆ JPEG_INTERNALS

#define JPEG_INTERNALS

◆ MAKE_BYTE_AVAIL

#define MAKE_BYTE_AVAIL ( cinfo,
action )
Value:
if (bytes_in_buffer == 0) { \
if (! (*datasrc->fill_input_buffer) (cinfo)) \
{ action; } \
INPUT_RELOAD(cinfo); \
}

Typedef Documentation

◆ my_marker_ptr

typedef my_marker_reader* my_marker_ptr

Enumeration Type Documentation

◆ JPEG_MARKER

enum JPEG_MARKER
Enumerator
M_SOF0 
M_SOF1 
M_SOF2 
M_SOF3 
M_SOF5 
M_SOF6 
M_SOF7 
M_JPG 
M_SOF9 
M_SOF10 
M_SOF11 
M_SOF13 
M_SOF14 
M_SOF15 
M_DHT 
M_DAC 
M_RST0 
M_RST1 
M_RST2 
M_RST3 
M_RST4 
M_RST5 
M_RST6 
M_RST7 
M_SOI 
M_EOI 
M_SOS 
M_DQT 
M_DNL 
M_DRI 
M_DHP 
M_EXP 
M_APP0 
M_APP1 
M_APP2 
M_APP3 
M_APP4 
M_APP5 
M_APP6 
M_APP7 
M_APP8 
M_APP9 
M_APP10 
M_APP11 
M_APP12 
M_APP13 
M_APP14 
M_APP15 
M_JPG0 
M_JPG13 
M_COM 
M_TEM 
M_ERROR 

Function Documentation

◆ examine_app0()

examine_app0 ( j_decompress_ptr cinfo,
JOCTET FAR * data,
unsigned int datalen,
INT32 remaining )

◆ examine_app14()

examine_app14 ( j_decompress_ptr cinfo,
JOCTET FAR * data,
unsigned int datalen,
INT32 remaining )

◆ first_marker()

first_marker ( j_decompress_ptr cinfo)

◆ get_dht()

get_dht ( j_decompress_ptr cinfo)

◆ get_dqt()

get_dqt ( j_decompress_ptr cinfo)

◆ get_dri()

get_dri ( j_decompress_ptr cinfo)

◆ get_interesting_appn()

get_interesting_appn ( j_decompress_ptr cinfo)

◆ get_sof()

get_sof ( j_decompress_ptr cinfo,
boolean is_prog,
boolean is_arith )

◆ get_soi()

get_soi ( j_decompress_ptr cinfo)

◆ get_sos()

get_sos ( j_decompress_ptr cinfo)

◆ jinit_marker_reader()

jinit_marker_reader ( j_decompress_ptr cinfo)

◆ jpeg_resync_to_restart()

jpeg_resync_to_restart ( j_decompress_ptr cinfo,
int desired )

◆ jpeg_set_marker_processor()

jpeg_set_marker_processor ( j_decompress_ptr cinfo,
int marker_code,
jpeg_marker_parser_method routine )

◆ next_marker()

next_marker ( j_decompress_ptr cinfo)

◆ read_markers()

read_markers ( j_decompress_ptr cinfo)

◆ read_restart_marker()

read_restart_marker ( j_decompress_ptr cinfo)

◆ reset_marker_reader()

reset_marker_reader ( j_decompress_ptr cinfo)

◆ skip_variable()

skip_variable ( j_decompress_ptr cinfo)