a359bb4f
 Hu Chunming
调通可正常运行 -- 初版
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/*
* copyright (c) 2003 Fabrice Bellard
*
* 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
* @ingroup lavu
* Libavutil version macros
*/
#ifndef AVUTIL_VERSION_H
#define AVUTIL_VERSION_H
#include "macros.h"
/**
* @addtogroup version_utils
*
* Useful to check and match library version in order to maintain
* backward compatibility.
*
* The FFmpeg libraries follow a versioning sheme very similar to
* Semantic Versioning (http://semver.org/)
* The difference is that the component called PATCH is called MICRO in FFmpeg
* and its value is reset to 100 instead of 0 to keep it above or equal to 100.
* Also we do not increase MICRO for every bugfix or change in git master.
*
* Prior to FFmpeg 3.2 point releases did not change any lib version number to
* avoid aliassing different git master checkouts.
* Starting with FFmpeg 3.2, the released library versions will occupy
* a separate MAJOR.MINOR that is not used on the master development branch.
* That is if we branch a release of master 55.10.123 we will bump to 55.11.100
* for the release and master will continue at 55.12.100 after it. Each new
* point release will then bump the MICRO improving the usefulness of the lib
* versions.
*
* @{
*/
#define AV_VERSION_INT(a, b, c) ((a)<<16 | (b)<<8 | (c))
#define AV_VERSION_DOT(a, b, c) a ##.## b ##.## c
#define AV_VERSION(a, b, c) AV_VERSION_DOT(a, b, c)
/**
* Extract version components from the full ::AV_VERSION_INT int as returned
* by functions like ::avformat_version() and ::avcodec_version()
*/
#define AV_VERSION_MAJOR(a) ((a) >> 16)
#define AV_VERSION_MINOR(a) (((a) & 0x00FF00) >> 8)
#define AV_VERSION_MICRO(a) ((a) & 0xFF)
/**
* @}
*/
/**
* @defgroup lavu_ver Version and Build diagnostics
*
* Macros and function useful to check at compiletime and at runtime
* which version of libavutil is in use.
*
* @{
*/
#define LIBAVUTIL_VERSION_MAJOR 57
#define LIBAVUTIL_VERSION_MINOR 17
#define LIBAVUTIL_VERSION_MICRO 100
#define LIBAVUTIL_VERSION_INT AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \
LIBAVUTIL_VERSION_MINOR, \
LIBAVUTIL_VERSION_MICRO)
#define LIBAVUTIL_VERSION AV_VERSION(LIBAVUTIL_VERSION_MAJOR, \
LIBAVUTIL_VERSION_MINOR, \
LIBAVUTIL_VERSION_MICRO)
#define LIBAVUTIL_BUILD LIBAVUTIL_VERSION_INT
#define LIBAVUTIL_IDENT "Lavu" AV_STRINGIFY(LIBAVUTIL_VERSION)
/**
* @defgroup lavu_depr_guards Deprecation Guards
* FF_API_* defines may be placed below to indicate public API that will be
* dropped at a future version bump. The defines themselves are not part of
* the public API and may change, break or disappear at any time.
*
* @note, when bumping the major version it is recommended to manually
* disable each FF_API_* in its own commit instead of disabling them all
* at once through the bump. This improves the git bisect-ability of the change.
*
* @{
*/
#define FF_API_D2STR (LIBAVUTIL_VERSION_MAJOR < 58)
#define FF_API_DECLARE_ALIGNED (LIBAVUTIL_VERSION_MAJOR < 58)
#define FF_API_COLORSPACE_NAME (LIBAVUTIL_VERSION_MAJOR < 58)
#define FF_API_AV_MALLOCZ_ARRAY (LIBAVUTIL_VERSION_MAJOR < 58)
/**
* @}
* @}
*/
#endif /* AVUTIL_VERSION_H */
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