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Introduce av_clip_uint16().

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Originally committed as revision 19636 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Ramiro Polla 2009-08-13 18:47:13 +00:00
parent d426ea20c9
commit f51fb686de
1 changed files with 11 additions and 0 deletions
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11
libavutil/common.h
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@ -189,6 +189,17 @@ static inline av_const uint8_t av_clip_uint8(int a)
else return a; else return a;
} }
/**
* Clips a signed integer value into the 0-65535 range.
* @param a value to clip
* @return clipped value
*/
static inline av_const uint16_t av_clip_uint16(int a)
{
if (a&(~65535)) return (-a)>>31;
else return a;
}
/** /**
* Clips a signed integer value into the -32768,32767 range. * Clips a signed integer value into the -32768,32767 range.
* @param a value to clip * @param a value to clip