diff options
Diffstat (limited to 'libavcodec/mathops.h')
| -rw-r--r-- | libavcodec/mathops.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/libavcodec/mathops.h b/libavcodec/mathops.h index 880e94671f..b92a6be137 100644 --- a/libavcodec/mathops.h +++ b/libavcodec/mathops.h @@ -113,5 +113,12 @@ static inline av_const int mid_pred(int a, int b, int c) } #endif +#ifndef sign_extend +static inline av_const int sign_extend(int val, unsigned bits) +{ + return (val << (INT_BIT - bits)) >> (INT_BIT - bits); +} +#endif + #endif /* AVCODEC_MATHOPS_H */ |