FFmpeg
libavcodec
mjpeg.h
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/*
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* MJPEG encoder and decoder
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* Copyright (c) 2000, 2001 Fabrice Bellard
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* Copyright (c) 2003 Alex Beregszaszi
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* Copyright (c) 2003-2004 Michael Niedermayer
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*
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* Support for external huffman table, various fixes (AVID workaround),
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* aspecting, new decode_frame mechanism and apple mjpeg-b support
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* by Alex Beregszaszi
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/**
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* @file
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* MJPEG encoder and decoder.
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*/
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#ifndef AVCODEC_MJPEG_H
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#define AVCODEC_MJPEG_H
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/* JPEG marker codes */
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enum
JpegMarker
{
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/* start of frame */
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SOF0
= 0xc0,
/* baseline */
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SOF1
= 0xc1,
/* extended sequential, huffman */
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SOF2
= 0xc2,
/* progressive, huffman */
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SOF3
= 0xc3,
/* lossless, huffman */
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SOF5
= 0xc5,
/* differential sequential, huffman */
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SOF6
= 0xc6,
/* differential progressive, huffman */
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SOF7
= 0xc7,
/* differential lossless, huffman */
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JPG
= 0xc8,
/* reserved for JPEG extension */
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SOF9
= 0xc9,
/* extended sequential, arithmetic */
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SOF10
= 0xca,
/* progressive, arithmetic */
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SOF11
= 0xcb,
/* lossless, arithmetic */
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SOF13
= 0xcd,
/* differential sequential, arithmetic */
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SOF14
= 0xce,
/* differential progressive, arithmetic */
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SOF15
= 0xcf,
/* differential lossless, arithmetic */
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DHT
= 0xc4,
/* define huffman tables */
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DAC
= 0xcc,
/* define arithmetic-coding conditioning */
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/* restart with modulo 8 count "m" */
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RST0
= 0xd0,
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RST1
= 0xd1,
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RST2
= 0xd2,
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RST3
= 0xd3,
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RST4
= 0xd4,
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RST5
= 0xd5,
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RST6
= 0xd6,
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RST7
= 0xd7,
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SOI
= 0xd8,
/* start of image */
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EOI
= 0xd9,
/* end of image */
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SOS
= 0xda,
/* start of scan */
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DQT
= 0xdb,
/* define quantization tables */
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DNL
= 0xdc,
/* define number of lines */
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DRI
= 0xdd,
/* define restart interval */
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DHP
= 0xde,
/* define hierarchical progression */
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EXP
= 0xdf,
/* expand reference components */
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APP0
= 0xe0,
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APP1
= 0xe1,
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APP2
= 0xe2,
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APP3
= 0xe3,
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APP4
= 0xe4,
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APP5
= 0xe5,
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APP6
= 0xe6,
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APP7
= 0xe7,
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APP8
= 0xe8,
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APP9
= 0xe9,
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APP10
= 0xea,
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APP11
= 0xeb,
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APP12
= 0xec,
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APP13
= 0xed,
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APP14
= 0xee,
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APP15
= 0xef,
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JPG0
= 0xf0,
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JPG1
= 0xf1,
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JPG2
= 0xf2,
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JPG3
= 0xf3,
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JPG4
= 0xf4,
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JPG5
= 0xf5,
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JPG6
= 0xf6,
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SOF48
= 0xf7,
///< JPEG-LS
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LSE
= 0xf8,
///< JPEG-LS extension parameters
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JPG9
= 0xf9,
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JPG10
= 0xfa,
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JPG11
= 0xfb,
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JPG12
= 0xfc,
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JPG13
= 0xfd,
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COM
= 0xfe,
/* comment */
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TEM
= 0x01,
/* temporary private use for arithmetic coding */
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/* 0x02 -> 0xbf reserved */
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};
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#define PREDICT(ret, topleft, top, left, predictor)\
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switch(predictor){\
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case 0: ret= 0; break;\
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case 1: ret= left; break;\
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case 2: ret= top; break;\
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case 3: ret= topleft; break;\
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case 4: ret= left + top - topleft; break;\
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case 5: ret= left + ((top - topleft)>>1); break;\
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case 6: ret= top + ((left - topleft)>>1); break;\
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default:\
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case 7: ret= (left + top)>>1; break;\
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}
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#endif
/* AVCODEC_MJPEG_H */
DHP
@ DHP
Definition:
mjpeg.h:76
SOS
@ SOS
Definition:
mjpeg.h:72
SOF48
@ SOF48
JPEG-LS.
Definition:
mjpeg.h:103
APP1
@ APP1
Definition:
mjpeg.h:80
SOF0
@ SOF0
Definition:
mjpeg.h:39
RST7
@ RST7
Definition:
mjpeg.h:68
SOF11
@ SOF11
Definition:
mjpeg.h:50
RST3
@ RST3
Definition:
mjpeg.h:64
JPG4
@ JPG4
Definition:
mjpeg.h:100
RST6
@ RST6
Definition:
mjpeg.h:67
JpegMarker
JpegMarker
Definition:
mjpeg.h:37
APP15
@ APP15
Definition:
mjpeg.h:94
APP4
@ APP4
Definition:
mjpeg.h:83
JPG5
@ JPG5
Definition:
mjpeg.h:101
SOF3
@ SOF3
Definition:
mjpeg.h:42
APP13
@ APP13
Definition:
mjpeg.h:92
COM
@ COM
Definition:
mjpeg.h:111
SOF5
@ SOF5
Definition:
mjpeg.h:44
APP12
@ APP12
Definition:
mjpeg.h:91
APP3
@ APP3
Definition:
mjpeg.h:82
JPG10
@ JPG10
Definition:
mjpeg.h:106
RST0
@ RST0
Definition:
mjpeg.h:61
APP11
@ APP11
Definition:
mjpeg.h:90
APP5
@ APP5
Definition:
mjpeg.h:84
APP9
@ APP9
Definition:
mjpeg.h:88
RST4
@ RST4
Definition:
mjpeg.h:65
JPG13
@ JPG13
Definition:
mjpeg.h:109
SOF13
@ SOF13
Definition:
mjpeg.h:52
JPG12
@ JPG12
Definition:
mjpeg.h:108
JPG9
@ JPG9
Definition:
mjpeg.h:105
JPG6
@ JPG6
Definition:
mjpeg.h:102
JPG2
@ JPG2
Definition:
mjpeg.h:98
TEM
@ TEM
Definition:
mjpeg.h:113
DRI
@ DRI
Definition:
mjpeg.h:75
EXP
@ EXP
Definition:
mjpeg.h:77
SOF14
@ SOF14
Definition:
mjpeg.h:53
SOF15
@ SOF15
Definition:
mjpeg.h:54
DQT
@ DQT
Definition:
mjpeg.h:73
RST1
@ RST1
Definition:
mjpeg.h:62
APP6
@ APP6
Definition:
mjpeg.h:85
SOF10
@ SOF10
Definition:
mjpeg.h:49
JPG0
@ JPG0
Definition:
mjpeg.h:96
EOI
@ EOI
Definition:
mjpeg.h:71
APP8
@ APP8
Definition:
mjpeg.h:87
SOF9
@ SOF9
Definition:
mjpeg.h:48
DAC
@ DAC
Definition:
mjpeg.h:58
DHT
@ DHT
Definition:
mjpeg.h:56
RST5
@ RST5
Definition:
mjpeg.h:66
APP7
@ APP7
Definition:
mjpeg.h:86
SOF2
@ SOF2
Definition:
mjpeg.h:41
LSE
@ LSE
JPEG-LS extension parameters.
Definition:
mjpeg.h:104
APP14
@ APP14
Definition:
mjpeg.h:93
DNL
@ DNL
Definition:
mjpeg.h:74
APP2
@ APP2
Definition:
mjpeg.h:81
JPG3
@ JPG3
Definition:
mjpeg.h:99
JPG11
@ JPG11
Definition:
mjpeg.h:107
APP0
@ APP0
Definition:
mjpeg.h:79
SOI
@ SOI
Definition:
mjpeg.h:70
SOF1
@ SOF1
Definition:
mjpeg.h:40
JPG1
@ JPG1
Definition:
mjpeg.h:97
APP10
@ APP10
Definition:
mjpeg.h:89
SOF7
@ SOF7
Definition:
mjpeg.h:46
SOF6
@ SOF6
Definition:
mjpeg.h:45
RST2
@ RST2
Definition:
mjpeg.h:63
JPG
@ JPG
Definition:
mjpeg.h:47
Generated on Thu Apr 18 2024 22:42:01 for FFmpeg by
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