ff_log2_16bit      46 libavutil/intmath.h #      define ff_log2_16bit av_log2
ff_log2_16bit      53 libavutil/intmath.h #      define ff_log2_16bit av_log2
ff_log2_16bit      86 libavutil/intmath.h #define ff_log2_16bit av_log2
ff_log2_16bit      91 libavutil/intmath.h #define ff_log2_16bit ff_log2_16bit_c