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libavutil: add version component accessor macros 

Pretty standard macros, these should help libav*
users avoid repeating ver.si.on parsing code,
which aids in compatibility-checking tasks like
identifying FFmpeg from Libav (_MICRO >= 100 check).
Something many are doing since we are not
intercompatible anymore.

Signed-off-by: Reynaldo H. Verdejo Pinochet <reynaldo@osg.samsung.com>
This commit is contained in:
Reynaldo H. Verdejo Pinochet 2015-12-04 14:07:23 -08:00
parent fcd9c6334a
commit 21c34cb261
1 changed files with 9 additions and 1 deletions
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10
libavutil/version.h
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@ -36,6 +36,14 @@
#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)
/**
* @}
*/
@ -56,7 +64,7 @@
*/
#define LIBAVUTIL_VERSION_MAJOR 55
#define LIBAVUTIL_VERSION_MINOR 9
#define LIBAVUTIL_VERSION_MINOR 10
#define LIBAVUTIL_VERSION_MICRO 100
#define LIBAVUTIL_VERSION_INT AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \