| 6ba04c2b | /* * MJPEG encoder and decoder |
| 406792e7 | * Copyright (c) 2000, 2001 Fabrice Bellard |
| 6ba04c2b | * Copyright (c) 2003 Alex Beregszaszi * Copyright (c) 2003-2004 Michael Niedermayer * |
| 7b94177e | * Support for external huffman table, various fixes (AVID workaround), * aspecting, new decode_frame mechanism and apple mjpeg-b support * by Alex Beregszaszi * |
| 6ba04c2b | * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ /** |
| ba87f080 | * @file |
| 6ba04c2b | * MJPEG encoder and decoder. */ |
| 98790382 | #ifndef AVCODEC_MJPEG_H #define AVCODEC_MJPEG_H |
| 6ba04c2b | /* JPEG marker codes */ |
| 87f87ccf |
enum JpegMarker { |
| 6ba04c2b |
/* start of frame */
SOF0 = 0xc0, /* baseline */
SOF1 = 0xc1, /* extended sequential, huffman */
SOF2 = 0xc2, /* progressive, huffman */
SOF3 = 0xc3, /* lossless, huffman */
SOF5 = 0xc5, /* differential sequential, huffman */
SOF6 = 0xc6, /* differential progressive, huffman */
SOF7 = 0xc7, /* differential lossless, huffman */
JPG = 0xc8, /* reserved for JPEG extension */
SOF9 = 0xc9, /* extended sequential, arithmetic */
SOF10 = 0xca, /* progressive, arithmetic */
SOF11 = 0xcb, /* lossless, arithmetic */
SOF13 = 0xcd, /* differential sequential, arithmetic */
SOF14 = 0xce, /* differential progressive, arithmetic */
SOF15 = 0xcf, /* differential lossless, arithmetic */
DHT = 0xc4, /* define huffman tables */
DAC = 0xcc, /* define arithmetic-coding conditioning */
/* restart with modulo 8 count "m" */
RST0 = 0xd0,
RST1 = 0xd1,
RST2 = 0xd2,
RST3 = 0xd3,
RST4 = 0xd4,
RST5 = 0xd5,
RST6 = 0xd6,
RST7 = 0xd7,
SOI = 0xd8, /* start of image */
EOI = 0xd9, /* end of image */
SOS = 0xda, /* start of scan */
DQT = 0xdb, /* define quantization tables */
DNL = 0xdc, /* define number of lines */
DRI = 0xdd, /* define restart interval */
DHP = 0xde, /* define hierarchical progression */
EXP = 0xdf, /* expand reference components */
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, ///< JPEG-LS
LSE = 0xf8, ///< JPEG-LS extension parameters
JPG9 = 0xf9,
JPG10 = 0xfa,
JPG11 = 0xfb,
JPG12 = 0xfc,
JPG13 = 0xfd,
COM = 0xfe, /* comment */
TEM = 0x01, /* temporary private use for arithmetic coding */
/* 0x02 -> 0xbf reserved */ |
| 87f87ccf | }; |
| 6ba04c2b | |
| 4922a5b0 |
#define PREDICT(ret, topleft, top, left, predictor)\
switch(predictor){\ |
| 5152beeb |
case 0: ret= 0; break;\ |
| 4922a5b0 |
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;\
}
|
| 98790382 | #endif /* AVCODEC_MJPEG_H */ |