diff options
Diffstat (limited to 'libavutil/version.h')
| -rw-r--r-- | libavutil/version.h | 71 |
1 files changed, 51 insertions, 20 deletions
diff --git a/libavutil/version.h b/libavutil/version.h index 73de00e267..d50f92ce12 100644 --- a/libavutil/version.h +++ b/libavutil/version.h @@ -1,47 +1,72 @@ /* - * This file is part of Libav. + * copyright (c) 2003 Fabrice Bellard * - * Libav is free software; you can redistribute it and/or + * 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. * - * Libav is distributed in the hope that it will be useful, + * 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 Libav; if not, write to the Free Software + * 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" /** - * @defgroup version_utils Library Version Macros + * @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_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) /** - * @file - * @ingroup lavu - * Libavutil version macros + * @} */ /** @@ -53,9 +78,9 @@ * @{ */ -#define LIBAVUTIL_VERSION_MAJOR 55 -#define LIBAVUTIL_VERSION_MINOR 23 -#define LIBAVUTIL_VERSION_MICRO 0 +#define LIBAVUTIL_VERSION_MAJOR 55 +#define LIBAVUTIL_VERSION_MINOR 50 +#define LIBAVUTIL_VERSION_MICRO 100 #define LIBAVUTIL_VERSION_INT AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \ LIBAVUTIL_VERSION_MINOR, \ @@ -68,13 +93,15 @@ #define LIBAVUTIL_IDENT "Lavu" AV_STRINGIFY(LIBAVUTIL_VERSION) /** - * @} - * - * @defgroup depr_guards Deprecation guards + * @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. + * * @{ */ @@ -90,8 +117,11 @@ #ifndef FF_API_DLOG #define FF_API_DLOG (LIBAVUTIL_VERSION_MAJOR < 56) #endif -#ifndef FF_API_CRYPTO_CONTEXT -#define FF_API_CRYPTO_CONTEXT (LIBAVUTIL_VERSION_MAJOR < 56) +#ifndef FF_API_VAAPI +#define FF_API_VAAPI (LIBAVUTIL_VERSION_MAJOR < 56) +#endif +#ifndef FF_API_FRAME_QP +#define FF_API_FRAME_QP (LIBAVUTIL_VERSION_MAJOR < 56) #endif #ifndef FF_API_PLUS1_MINUS1 #define FF_API_PLUS1_MINUS1 (LIBAVUTIL_VERSION_MAJOR < 56) @@ -99,8 +129,8 @@ #ifndef FF_API_ERROR_FRAME #define FF_API_ERROR_FRAME (LIBAVUTIL_VERSION_MAJOR < 56) #endif -#ifndef FF_API_VAAPI -#define FF_API_VAAPI (LIBAVUTIL_VERSION_MAJOR < 56) +#ifndef FF_API_CRC_BIG_TABLE +#define FF_API_CRC_BIG_TABLE (LIBAVUTIL_VERSION_MAJOR < 56) #endif #ifndef FF_API_PKT_PTS #define FF_API_PKT_PTS (LIBAVUTIL_VERSION_MAJOR < 56) @@ -109,6 +139,7 @@ /** * @} + * @} */ #endif /* AVUTIL_VERSION_H */ |