diff options
| -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 85eac484e0..149910bb1d 100644 --- a/libavcodec/mathops.h +++ b/libavcodec/mathops.h @@ -122,6 +122,13 @@ static inline av_const int sign_extend(int val, unsigned bits) } #endif +#ifndef zero_extend +static inline av_const unsigned zero_extend(unsigned val, unsigned bits) +{ + return (val << (INT_BIT - bits)) >> (INT_BIT - bits); +} +#endif + #ifndef COPY3_IF_LT #define COPY3_IF_LT(x, y, a, b, c, d)\ if ((y) < (x)) {\ |