NEG_USR32         175 libavcodec/mathops.h #   define NEG_USR32(a,s) (((uint32_t)(a))>>(32-(s)))
NEG_USR32         121 libavcodec/x86/mathops.h #define NEG_USR32 NEG_USR32
NEG_USR32         122 libavcodec/x86/mathops.h static inline uint32_t NEG_USR32(uint32_t a, int8_t s){