1/*
2 * MJPEG encoder
3 * Copyright (c) 2000, 2001 Fabrice Bellard
4 * Copyright (c) 2003 Alex Beregszaszi
5 * Copyright (c) 2003-2004 Michael Niedermayer
6 *
7 * Support for external huffman table, various fixes (AVID workaround),
8 * aspecting, new decode_frame mechanism and apple mjpeg-b support
9 *                                  by Alex Beregszaszi
10 *
11 * This file is part of FFmpeg.
12 *
13 * FFmpeg is free software; you can redistribute it and/or
14 * modify it under the terms of the GNU Lesser General Public
15 * License as published by the Free Software Foundation; either
16 * version 2.1 of the License, or (at your option) any later version.
17 *
18 * FFmpeg is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
21 * Lesser General Public License for more details.
22 *
23 * You should have received a copy of the GNU Lesser General Public
24 * License along with FFmpeg; if not, write to the Free Software
25 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
26 */
27
28/**
29 * @file
30 * MJPEG encoder.
31 */
32
33#ifndef AVCODEC_MJPEGENC_H
34#define AVCODEC_MJPEGENC_H
35
36#include "dsputil.h"
37#include "mpegvideo.h"
38
39typedef struct MJpegContext {
40    uint8_t huff_size_dc_luminance[12]; //FIXME use array [3] instead of lumi / chrom, for easier addressing
41    uint16_t huff_code_dc_luminance[12];
42    uint8_t huff_size_dc_chrominance[12];
43    uint16_t huff_code_dc_chrominance[12];
44
45    uint8_t huff_size_ac_luminance[256];
46    uint16_t huff_code_ac_luminance[256];
47    uint8_t huff_size_ac_chrominance[256];
48    uint16_t huff_code_ac_chrominance[256];
49} MJpegContext;
50
51int  ff_mjpeg_encode_init(MpegEncContext *s);
52void ff_mjpeg_encode_close(MpegEncContext *s);
53void ff_mjpeg_encode_picture_header(MpegEncContext *s);
54void ff_mjpeg_encode_picture_trailer(MpegEncContext *s);
55void ff_mjpeg_encode_stuffing(PutBitContext *pbc);
56void ff_mjpeg_encode_dc(MpegEncContext *s, int val,
57                        uint8_t *huff_size, uint16_t *huff_code);
58void ff_mjpeg_encode_mb(MpegEncContext *s, DCTELEM block[6][64]);
59
60#endif /* AVCODEC_MJPEGENC_H */
61