ff_hflip_init      36 libavfilter/hflip.h int ff_hflip_init(FlipContext *s, int step[4], int nb_planes);
ff_hflip_init     144 libavfilter/vf_hflip.c     return ff_hflip_init(s, s->max_step, nb_planes);
ff_hflip_init      57 tests/checkasm/vf_hflip.c     ff_hflip_init(&s, step_array, 4);