ff_ref_idct        82 libavcodec/dct-test.c     { "REF-DBL",     ff_ref_idct,          FF_IDCT_PERM_NONE },
ff_ref_idct       175 libavcodec/dct-test.c     void (*ref)(int16_t *block) = is_idct ? ff_ref_idct : ff_ref_fdct;
ff_ref_idct        26 libavcodec/dctref.h void ff_ref_idct(short *block);