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avutil/common: Add FFABSU() for a signed -> unsigned ABS

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Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2021-01-23 16:22:33 +01:00
parent 3c700c82cb
commit 5dd9567080
3 changed files with 13 additions and 2 deletions
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3
doc/APIchanges
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@ -15,6 +15,9 @@ libavutil: 2017-10-21
API changes, most recent first:
2021-01-26 - xxxxxxxxxx - lavu 56.64.100 - common.h
Add FFABSU()
2021-01-25 - xxxxxxxxxx - lavc 58.119.100 - avcodec.h
Deprecate AVCodecContext.debug_mv, FF_DEBUG_VIS_MV_P_FOR, FF_DEBUG_VIS_MV_B_FOR,
FF_DEBUG_VIS_MV_B_BACK

8
libavutil/common.h
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@ -80,6 +80,14 @@
*/
#define FFNABS(a) ((a) <= 0 ? (a) : (-(a)))
/**
* Unsigned Absolute value.
* This takes the absolute value of a signed int and returns it as a unsigned.
* This also works with INT_MIN which would otherwise not be representable
* As with many macros, this evaluates its argument twice.
*/
#define FFABSU(a) ((a) <= 0 ? -(unsigned)(a) : (unsigned)(a))
/**
* Comparator.
* For two numerical expressions x and y, gives 1 if x > y, -1 if x < y, and 0

4
libavutil/version.h
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@ -79,8 +79,8 @@
*/
#define LIBAVUTIL_VERSION_MAJOR 56
#define LIBAVUTIL_VERSION_MINOR 63
#define LIBAVUTIL_VERSION_MICRO 101
#define LIBAVUTIL_VERSION_MINOR 64
#define LIBAVUTIL_VERSION_MICRO 100
#define LIBAVUTIL_VERSION_INT AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \
LIBAVUTIL_VERSION_MINOR, \