FFFrac            193 libavformat/internal.h     FFFrac *priv_pts;
FFFrac             51 libavformat/mux.c static void frac_init(FFFrac *f, int64_t val, int64_t num, int64_t den)
FFFrac             69 libavformat/mux.c static void frac_add(FFFrac *f, int64_t incr)