xref: /third_party/ffmpeg/libavcodec/libjxl.h (revision cabdff1a)
1/*
2 * JPEG XL de/encoding via libjxl, common support header
3 * Copyright (c) 2021 Leo Izen <leo.izen@gmail.com>
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22/**
23 * @file
24 * JPEG XL via libjxl common support header
25 */
26
27#ifndef AVCODEC_LIBJXL_H
28#define AVCODEC_LIBJXL_H
29
30#include <jxl/memory_manager.h>
31
32/**
33 * Transform threadcount in ffmpeg to one used by libjxl.
34 *
35 * @param  threads ffmpeg's threads AVOption
36 * @return         thread count for libjxl's parallel runner
37 */
38size_t ff_libjxl_get_threadcount(int threads);
39
40/**
41 * Initialize and populate a JxlMemoryManager
42 * with av_malloc() and av_free() so libjxl will use these
43 * functions.
44 * @param manager a pointer to a JxlMemoryManager struct
45 */
46void ff_libjxl_init_memory_manager(JxlMemoryManager *manager);
47
48#endif /* AVCODEC_LIBJXL_H */
49