FADE              198 libavfilter/af_afade.c FADE(dbl, double)
FADE              199 libavfilter/af_afade.c FADE(flt, float)
FADE              200 libavfilter/af_afade.c FADE(s16, int16_t)
FADE              201 libavfilter/af_afade.c FADE(s32, int32_t)
FADE              138 libavfilter/allfilters.c     REGISTER_FILTER(FADE,           fade,           vf);