1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
/*
* lossless JPEG shared bits
*
* 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
*/
#ifndef AVCODEC_MJPEGENC_COMMON_H
#define AVCODEC_MJPEGENC_COMMON_H
#include <stdint.h>
#include "avcodec.h"
#include "idctdsp.h"
#include "put_bits.h"
struct MJpegContext;
void ff_mjpeg_encode_picture_header(AVCodecContext *avctx, PutBitContext *pb,
struct MJpegContext *m,
ScanTable *intra_scantable, int pred,
uint16_t luma_intra_matrix[64],
uint16_t chroma_intra_matrix[64],
int use_slices);
void ff_mjpeg_encode_picture_trailer(PutBitContext *pb, int header_bits);
void ff_mjpeg_escape_FF(PutBitContext *pb, int start);
void ff_mjpeg_build_huffman_codes(uint8_t *huff_size, uint16_t *huff_code,
const uint8_t *bits_table,
const uint8_t *val_table);
void ff_mjpeg_init_hvsample(AVCodecContext *avctx, int hsample[4], int vsample[4]);
void ff_mjpeg_encode_dc(PutBitContext *pb, int val,
uint8_t *huff_size, uint16_t *huff_code);
int ff_mjpeg_encode_check_pix_fmt(AVCodecContext *avctx);
#endif /* AVCODEC_MJPEGENC_COMMON_H */
|
