jpegutils.c File Reference

#include "jpegutils.h"
#include <jpeglib.h>
#include <jerror.h>
#include <assert.h>
#include <setjmp.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>

Include dependency graph for jpegutils.c:

Classes
struct	my_error_mgr

Macros
#define	MAX_LUMA_WIDTH   4096
#define	MAX_CHROMA_WIDTH   2048

Functions
static void	jpeg_buffer_src (j_decompress_ptr cinfo, unsigned char *buffer, long num)
static void	jpeg_buffer_dest (j_compress_ptr cinfo, unsigned char *buffer, long len)
static void	jpeg_skip_ff (j_decompress_ptr cinfo)
static void	init_source (j_decompress_ptr cinfo)
static boolean	fill_input_buffer (j_decompress_ptr cinfo)
static void	skip_input_data (j_decompress_ptr cinfo, long num_bytes)
static void	term_source (j_decompress_ptr cinfo)
static void	init_destination (j_compress_ptr cinfo)
static boolean	empty_output_buffer (j_compress_ptr cinfo)
static void	term_destination (j_compress_ptr cinfo)
static void	my_error_exit (j_common_ptr cinfo)
static void	my_emit_message (j_common_ptr cinfo, int msg_level)
static void	add_huff_table (j_decompress_ptr dinfo, JHUFF_TBL **htblptr, const UINT8 *bits, const UINT8 *val)
static void	std_huff_tables (j_decompress_ptr dinfo)
static void	guarantee_huff_tables (j_decompress_ptr dinfo)
int	decode_jpeg_raw (unsigned char *jpeg_data, int len, int itype, int ctype, unsigned int width, unsigned int height, unsigned char *raw0, unsigned char *raw1, unsigned char *raw2)
	decode JPEG buffer More...
int	decode_jpeg_gray_raw (unsigned char *jpeg_data, int len, int itype, int ctype, unsigned int width, unsigned int height, unsigned char *raw0, unsigned char *raw1, unsigned char *raw2)
	decode JPEG raw gray buffer More...
int	encode_jpeg_raw (unsigned char *jpeg_data, int len, int quality, int itype, int ctype, unsigned int width, unsigned int height, unsigned char *raw0, unsigned char *raw1, unsigned char *raw2)
	encode raw JPEG buffer More...
int	decode_jpeg_rgb (unsigned char *inBuffer, unsigned long inSize, uint8_t **memptr, size_t *memsize, int *naxis, int *w, int *h)
	decode_jpeg_rgb Read jpeg in memory buffer and produce RGB image More...

Variables
static uint8_t	EOI_data [2] = { 0xFF, 0xD9 }
static unsigned char	buf0 [16][MAX_LUMA_WIDTH]
static unsigned char	buf1 [8][MAX_CHROMA_WIDTH]
static unsigned char	buf2 [8][MAX_CHROMA_WIDTH]
static unsigned char	chr1 [8][MAX_CHROMA_WIDTH]
static unsigned char	chr2 [8][MAX_CHROMA_WIDTH]

Macro Definition Documentation

MAX_CHROMA_WIDTH

#define MAX_CHROMA_WIDTH   2048

MAX_LUMA_WIDTH

#define MAX_LUMA_WIDTH   4096

Function Documentation

add_huff_table()

static void add_huff_table ( j_decompress_ptr  dinfo, JHUFF_TBL **  htblptr, const UINT8 *  bits, const UINT8 *  val  )

static

empty_output_buffer()

static boolean empty_output_buffer ( j_compress_ptr  cinfo )

static

fill_input_buffer()

static boolean fill_input_buffer ( j_decompress_ptr  cinfo )

static

guarantee_huff_tables()

static void guarantee_huff_tables ( j_decompress_ptr  dinfo )

static

init_destination()

static void init_destination ( j_compress_ptr  cinfo )

static

init_source()

static void init_source ( j_decompress_ptr  cinfo )

static

jpeg_buffer_dest()

static void jpeg_buffer_dest ( j_compress_ptr  cinfo, unsigned char *  buffer, long  len  )

static

jpeg_buffer_src()

static void jpeg_buffer_src ( j_decompress_ptr  cinfo, unsigned char *  buffer, long  num  )

static

jpeg_skip_ff()

static void jpeg_skip_ff ( j_decompress_ptr  cinfo )

static

my_emit_message()

static void my_emit_message ( j_common_ptr  cinfo, int  msg_level  )

static

my_error_exit()

static void my_error_exit ( j_common_ptr  cinfo )

static

skip_input_data()

static void skip_input_data ( j_decompress_ptr  cinfo, long  num_bytes  )

static

std_huff_tables()

static void std_huff_tables ( j_decompress_ptr  dinfo )

static

term_destination()

static void term_destination ( j_compress_ptr  cinfo )

static

term_source()

static void term_source ( j_decompress_ptr  cinfo )

static

Variable Documentation

buf0

unsigned char buf0[16][MAX_LUMA_WIDTH]

static

buf1

unsigned char buf1[8][MAX_CHROMA_WIDTH]

static

buf2

unsigned char buf2[8][MAX_CHROMA_WIDTH]

static

chr1

unsigned char chr1[8][MAX_CHROMA_WIDTH]

static

chr2

unsigned char chr2[8][MAX_CHROMA_WIDTH]

static

EOI_data

uint8_t EOI_data[2] = { 0xFF, 0xD9 }

static