diff options
Diffstat (limited to 'libavutil/mathematics.h')
| -rw-r--r-- | libavutil/mathematics.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/libavutil/mathematics.h b/libavutil/mathematics.h index e198aef8cb..889ce959fd 100644 --- a/libavutil/mathematics.h +++ b/libavutil/mathematics.h @@ -94,5 +94,14 @@ int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq) av_const; */ int av_compare_ts(int64_t ts_a, AVRational tb_a, int64_t ts_b, AVRational tb_b); +/** + * Compare 2 integers modulo mod. + * That is we compare integers a and b for which only the least significant log2(mod) bits are known + * @param mod must be a power of 2 + * @returns a negative value if a is smaller than b + * a positiv value if a is greater than b + * 0 if a equals b + */ +int64_t av_compare_mod(uint64_t a, uint64_t b, uint64_t mod); #endif /* AVUTIL_MATHEMATICS_H */ |