1/*
2 * copyright (c) 2003 Fabrice Bellard
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21/**
22 * @file
23 * @ingroup lavu
24 * Libavutil version macros
25 */
26
27#ifndef AVUTIL_VERSION_H
28#define AVUTIL_VERSION_H
29
30#include "macros.h"
31
32/**
33 * @addtogroup version_utils
34 *
35 * Useful to check and match library version in order to maintain
36 * backward compatibility.
37 *
38 * The FFmpeg libraries follow a versioning sheme very similar to
39 * Semantic Versioning (http://semver.org/)
40 * The difference is that the component called PATCH is called MICRO in FFmpeg
41 * and its value is reset to 100 instead of 0 to keep it above or equal to 100.
42 * Also we do not increase MICRO for every bugfix or change in git master.
43 *
44 * Prior to FFmpeg 3.2 point releases did not change any lib version number to
45 * avoid aliassing different git master checkouts.
46 * Starting with FFmpeg 3.2, the released library versions will occupy
47 * a separate MAJOR.MINOR that is not used on the master development branch.
48 * That is if we branch a release of master 55.10.123 we will bump to 55.11.100
49 * for the release and master will continue at 55.12.100 after it. Each new
50 * point release will then bump the MICRO improving the usefulness of the lib
51 * versions.
52 *
53 * @{
54 */
55
56#define AV_VERSION_INT(a, b, c) ((a)<<16 | (b)<<8 | (c))
57#define AV_VERSION_DOT(a, b, c) a ##.## b ##.## c
58#define AV_VERSION(a, b, c) AV_VERSION_DOT(a, b, c)
59
60/**
61 * Extract version components from the full ::AV_VERSION_INT int as returned
62 * by functions like ::avformat_version() and ::avcodec_version()
63 */
64#define AV_VERSION_MAJOR(a) ((a) >> 16)
65#define AV_VERSION_MINOR(a) (((a) & 0x00FF00) >> 8)
66#define AV_VERSION_MICRO(a) ((a) & 0xFF)
67
68/**
69 * @}
70 */
71
72/**
73 * @defgroup lavu_ver Version and Build diagnostics
74 *
75 * Macros and function useful to check at compiletime and at runtime
76 * which version of libavutil is in use.
77 *
78 * @{
79 */
80
81#define LIBAVUTIL_VERSION_MAJOR 56
82#define LIBAVUTIL_VERSION_MINOR 70
83#define LIBAVUTIL_VERSION_MICRO 100
84
85#define LIBAVUTIL_VERSION_INT AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \
86 LIBAVUTIL_VERSION_MINOR, \
87 LIBAVUTIL_VERSION_MICRO)
88#define LIBAVUTIL_VERSION AV_VERSION(LIBAVUTIL_VERSION_MAJOR, \
89 LIBAVUTIL_VERSION_MINOR, \
90 LIBAVUTIL_VERSION_MICRO)
91#define LIBAVUTIL_BUILD LIBAVUTIL_VERSION_INT
92
93#define LIBAVUTIL_IDENT "Lavu" AV_STRINGIFY(LIBAVUTIL_VERSION)
94
95/**
96 * @defgroup lavu_depr_guards Deprecation Guards
97 * FF_API_* defines may be placed below to indicate public API that will be
98 * dropped at a future version bump. The defines themselves are not part of
99 * the public API and may change, break or disappear at any time.
100 *
101 * @note, when bumping the major version it is recommended to manually
102 * disable each FF_API_* in its own commit instead of disabling them all
103 * at once through the bump. This improves the git bisect-ability of the change.
104 *
105 * @{
106 */
107
108#ifndef FF_API_VAAPI
109#define FF_API_VAAPI (LIBAVUTIL_VERSION_MAJOR < 57)
110#endif
111#ifndef FF_API_FRAME_QP
112#define FF_API_FRAME_QP (LIBAVUTIL_VERSION_MAJOR < 57)
113#endif
114#ifndef FF_API_PLUS1_MINUS1
115#define FF_API_PLUS1_MINUS1 (LIBAVUTIL_VERSION_MAJOR < 57)
116#endif
117#ifndef FF_API_ERROR_FRAME
118#define FF_API_ERROR_FRAME (LIBAVUTIL_VERSION_MAJOR < 57)
119#endif
120#ifndef FF_API_PKT_PTS
121#define FF_API_PKT_PTS (LIBAVUTIL_VERSION_MAJOR < 57)
122#endif
123#ifndef FF_API_CRYPTO_SIZE_T
124#define FF_API_CRYPTO_SIZE_T (LIBAVUTIL_VERSION_MAJOR < 57)
125#endif
126#ifndef FF_API_FRAME_GET_SET
127#define FF_API_FRAME_GET_SET (LIBAVUTIL_VERSION_MAJOR < 57)
128#endif
129#ifndef FF_API_PSEUDOPAL
130#define FF_API_PSEUDOPAL (LIBAVUTIL_VERSION_MAJOR < 57)
131#endif
132#ifndef FF_API_CHILD_CLASS_NEXT
133#define FF_API_CHILD_CLASS_NEXT (LIBAVUTIL_VERSION_MAJOR < 57)
134#endif
135#ifndef FF_API_BUFFER_SIZE_T
136#define FF_API_BUFFER_SIZE_T (LIBAVUTIL_VERSION_MAJOR < 57)
137#endif
138#ifndef FF_API_D2STR
139#define FF_API_D2STR (LIBAVUTIL_VERSION_MAJOR < 58)
140#endif
141#ifndef FF_API_DECLARE_ALIGNED
142#define FF_API_DECLARE_ALIGNED (LIBAVUTIL_VERSION_MAJOR < 58)
143#endif
144
145/**
146 * @}
147 * @}
148 */
149
150#endif /* AVUTIL_VERSION_H */
151

source code of include/x86_64-linux-gnu/libavutil/version.h