mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
60 lines
2.1 KiB
60 lines
2.1 KiB
/* |
|
* MJPEG encoder |
|
* Copyright (c) 2000, 2001 Fabrice Bellard |
|
* Copyright (c) 2003 Alex Beregszaszi |
|
* Copyright (c) 2003-2004 Michael Niedermayer |
|
* |
|
* Support for external huffman table, various fixes (AVID workaround), |
|
* aspecting, new decode_frame mechanism and apple mjpeg-b support |
|
* by Alex Beregszaszi |
|
* |
|
* This file is part of Libav. |
|
* |
|
* Libav 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. |
|
* |
|
* Libav 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 Libav; if not, write to the Free Software |
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
|
*/ |
|
|
|
/** |
|
* @file |
|
* MJPEG encoder. |
|
*/ |
|
|
|
#ifndef AVCODEC_MJPEGENC_H |
|
#define AVCODEC_MJPEGENC_H |
|
|
|
#include "dsputil.h" |
|
#include "mpegvideo.h" |
|
|
|
typedef struct MJpegContext { |
|
uint8_t huff_size_dc_luminance[12]; //FIXME use array [3] instead of lumi / chrom, for easier addressing |
|
uint16_t huff_code_dc_luminance[12]; |
|
uint8_t huff_size_dc_chrominance[12]; |
|
uint16_t huff_code_dc_chrominance[12]; |
|
|
|
uint8_t huff_size_ac_luminance[256]; |
|
uint16_t huff_code_ac_luminance[256]; |
|
uint8_t huff_size_ac_chrominance[256]; |
|
uint16_t huff_code_ac_chrominance[256]; |
|
} MJpegContext; |
|
|
|
int ff_mjpeg_encode_init(MpegEncContext *s); |
|
void ff_mjpeg_encode_close(MpegEncContext *s); |
|
void ff_mjpeg_encode_picture_header(MpegEncContext *s); |
|
void ff_mjpeg_encode_picture_trailer(MpegEncContext *s); |
|
void ff_mjpeg_encode_stuffing(PutBitContext *pbc); |
|
void ff_mjpeg_encode_dc(MpegEncContext *s, int val, |
|
uint8_t *huff_size, uint16_t *huff_code); |
|
void ff_mjpeg_encode_mb(MpegEncContext *s, DCTELEM block[6][64]); |
|
|
|
#endif /* AVCODEC_MJPEGENC_H */
|
|
|