ff_imdct15_uninit 3186 libavcodec/aacdec.c     ff_imdct15_uninit(&ac->mdct480);
ff_imdct15_uninit  147 libavcodec/imdct15.c     ff_imdct15_uninit(&s);
ff_imdct15_uninit   52 libavcodec/imdct15.h void ff_imdct15_uninit(IMDCT15Context **s);
ff_imdct15_uninit 2182 libavcodec/opus_celt.c         ff_imdct15_uninit(&s->imdct[i]);