libavcodec/mjpeg.h File Reference

MJPEG encoder and decoder. More...

#include "avcodec.h"
#include "put_bits.h"

Go to the source code of this file.

Defines
#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
const uint8_t	ff_mjpeg_bits_dc_luminance []
const uint8_t	ff_mjpeg_val_dc []
const uint8_t	ff_mjpeg_bits_dc_chrominance []
const uint8_t	ff_mjpeg_bits_ac_luminance []
const uint8_t	ff_mjpeg_val_ac_luminance []
const uint8_t	ff_mjpeg_bits_ac_chrominance []
const uint8_t	ff_mjpeg_val_ac_chrominance []

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Detailed Description

MJPEG encoder and decoder.

Definition in file mjpeg.h.

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Define 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 128 of file mjpeg.h.

Referenced by encode_picture_lossless(), ljpeg_decode_rgb_scan(), and ljpeg_decode_yuv_scan().

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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

Definition at line 41 of file mjpeg.h.

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Function Documentation

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

Definition at line 127 of file mjpeg.c.

Referenced by build_vlc(), and ff_mjpeg_encode_init().

static void put_marker	(	PutBitContext *	p,
		int	code
	)			[inline, static]

Definition at line 122 of file mjpeg.h.

Referenced by encode_picture_ls(), ff_mjpeg_encode_picture_header(), ff_mjpeg_encode_picture_trailer(), jpeg_put_comments(), jpeg_table_header(), and ls_store_lse().

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Variable Documentation

const uint8_t ff_mjpeg_bits_ac_chrominance[]

Definition at line 99 of file mjpeg.c.

Referenced by append_dht_segment(), build_basic_mjpeg_vlc(), ff_mjpeg_encode_init(), and jpeg_table_header().

const uint8_t ff_mjpeg_bits_ac_luminance[]

Definition at line 73 of file mjpeg.c.

Referenced by append_dht_segment(), build_basic_mjpeg_vlc(), ff_mjpeg_encode_init(), and jpeg_table_header().

const uint8_t ff_mjpeg_bits_dc_chrominance[]

Definition at line 70 of file mjpeg.c.

Referenced by build_basic_mjpeg_vlc(), ff_mjpeg_encode_init(), and jpeg_table_header().

const uint8_t ff_mjpeg_bits_dc_luminance[]

Definition at line 65 of file mjpeg.c.

Referenced by append_dht_segment(), build_basic_mjpeg_vlc(), ff_mjpeg_encode_init(), and jpeg_table_header().

const uint8_t ff_mjpeg_val_ac_chrominance[]

Definition at line 102 of file mjpeg.c.

Referenced by append_dht_segment(), build_basic_mjpeg_vlc(), ff_mjpeg_encode_init(), and jpeg_table_header().

const uint8_t ff_mjpeg_val_ac_luminance[]

Definition at line 75 of file mjpeg.c.

Referenced by append_dht_segment(), build_basic_mjpeg_vlc(), ff_mjpeg_encode_init(), and jpeg_table_header().

const uint8_t ff_mjpeg_val_dc[]

Definition at line 67 of file mjpeg.c.

Referenced by append_dht_segment(), build_basic_mjpeg_vlc(), ff_mjpeg_encode_init(), and jpeg_table_header().