MJPEG encoder and decoder. More...

#include "libavutil/internal.h"
#include "avcodec.h"
#include "put_bits.h"

Macros
#define	PREDICT(ret, topleft, top, left, predictor)

Enumerations
enum	JPEG_MARKER { SOF0 = 0xc0, SOF1 = 0xc1, SOF2 = 0xc2, SOF3 = 0xc3, SOF5 = 0xc5, SOF6 = 0xc6, SOF7 = 0xc7, JPG = 0xc8, SOF9 = 0xc9, SOF10 = 0xca, SOF11 = 0xcb, SOF13 = 0xcd, SOF14 = 0xce, SOF15 = 0xcf, DHT = 0xc4, DAC = 0xcc, RST0 = 0xd0, RST1 = 0xd1, RST2 = 0xd2, RST3 = 0xd3, RST4 = 0xd4, RST5 = 0xd5, RST6 = 0xd6, RST7 = 0xd7, SOI = 0xd8, EOI = 0xd9, SOS = 0xda, DQT = 0xdb, DNL = 0xdc, DRI = 0xdd, DHP = 0xde, EXP = 0xdf, APP0 = 0xe0, APP1 = 0xe1, APP2 = 0xe2, APP3 = 0xe3, APP4 = 0xe4, APP5 = 0xe5, APP6 = 0xe6, APP7 = 0xe7, APP8 = 0xe8, APP9 = 0xe9, APP10 = 0xea, APP11 = 0xeb, APP12 = 0xec, APP13 = 0xed, APP14 = 0xee, APP15 = 0xef, JPG0 = 0xf0, JPG1 = 0xf1, JPG2 = 0xf2, JPG3 = 0xf3, JPG4 = 0xf4, JPG5 = 0xf5, JPG6 = 0xf6, SOF48 = 0xf7, LSE = 0xf8, JPG9 = 0xf9, JPG10 = 0xfa, JPG11 = 0xfb, JPG12 = 0xfc, JPG13 = 0xfd, COM = 0xfe, TEM = 0x01 }

Functions
static void	put_marker (PutBitContext *p, int code)

void	ff_mjpeg_build_huffman_codes (uint8_t huff_size, uint16_t huff_code, const uint8_t bits_table, const uint8_t val_table)

Variables
av_export const uint8_t	avpriv_mjpeg_bits_dc_luminance []

av_export const uint8_t	avpriv_mjpeg_val_dc []

av_export const uint8_t	avpriv_mjpeg_bits_dc_chrominance []

av_export const uint8_t	avpriv_mjpeg_bits_ac_luminance []

av_export const uint8_t	avpriv_mjpeg_val_ac_luminance []

av_export const uint8_t	avpriv_mjpeg_bits_ac_chrominance []

av_export const uint8_t	avpriv_mjpeg_val_ac_chrominance []

Detailed Description

MJPEG encoder and decoder.

Definition in file mjpeg.h.

Macro Definition Documentation

#define PREDICT	(	ret,
		topleft,
		top,
		left,
		predictor
	)

Value:

switch(predictor){\
        case 0: ret= 0; break;\
        case 1: ret= left; break;\
        case 2: ret= top; break;\
        case 3: ret= topleft; break;\
        case 4: ret= left   +   top - topleft; break;\
        case 5: ret= left   + ((top - topleft)>>1); break;\
        case 6: ret= top + ((left   - topleft)>>1); break;\
        default:\
        case 7: ret= (left + top)>>1; break;\
    }

Definition at line 129 of file mjpeg.h.

Referenced by ljpeg_decode_rgb_scan(), ljpeg_decode_yuv_scan(), ljpeg_encode_bgr(), and ljpeg_encode_yuv_mb().

Enumeration Type Documentation

enum JPEG_MARKER

Enumerator:

SOF0
SOF1
SOF2
SOF3
SOF5
SOF6
SOF7
JPG
SOF9
SOF10
SOF11
SOF13
SOF14
SOF15
DHT
DAC
RST0
RST1
RST2
RST3
RST4
RST5
RST6
RST7
SOI
EOI
SOS
DQT
DNL
DRI
DHP
EXP
APP0
APP1
APP2
APP3
APP4
APP5
APP6
APP7
APP8
APP9
APP10
APP11
APP12
APP13
APP14
APP15
JPG0
JPG1
JPG2
JPG3
JPG4
JPG5
JPG6
SOF48	JPEG-LS.
LSE	JPEG-LS extension parameters.
JPG9
JPG10
JPG11
JPG12
JPG13
COM
TEM