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
51
52
53
54
55
56
57
58
59
60
|
/*
* JPEG XL de/encoding via libjxl, common support header
* Copyright (c) 2021 Leo Izen <leo.izen@gmail.com>
*
* 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
*/
/**
* @file
* JPEG XL via libjxl common support header
*/
#ifndef AVCODEC_LIBJXL_H
#define AVCODEC_LIBJXL_H
#include <jxl/decode.h>
#include <jxl/memory_manager.h>
/*
* libjxl version 0.7.0 and earlier doesn't contain these macros at all
* so to detect version 0.7.0 versus 0.8.0 we need to define them ourselves
*/
#ifndef JPEGXL_COMPUTE_NUMERIC_VERSION
#define JPEGXL_COMPUTE_NUMERIC_VERSION(major,minor,patch) ((major<<24) | (minor<<16) | (patch<<8) | 0)
#endif
#ifndef JPEGXL_NUMERIC_VERSION
#define JPEGXL_NUMERIC_VERSION JPEGXL_COMPUTE_NUMERIC_VERSION(0, 7, 0)
#endif
/**
* Transform threadcount in ffmpeg to one used by libjxl.
*
* @param threads ffmpeg's threads AVOption
* @return thread count for libjxl's parallel runner
*/
size_t ff_libjxl_get_threadcount(int threads);
/**
* Initialize and populate a JxlMemoryManager
* with av_malloc() and av_free() so libjxl will use these
* functions.
* @param manager a pointer to a JxlMemoryManager struct
*/
void ff_libjxl_init_memory_manager(JxlMemoryManager *manager);
#endif /* AVCODEC_LIBJXL_H */
|
