transform_idct_4x4_fallback   60 libde265/fallback-dct.h void transform_idct_4x4_fallback(int32_t *dst, const int16_t *coeffs, int bdShift, int max_coeff_bits);
transform_idct_4x4_fallback  112 libde265/fallback.cc   accel->transform_idct_4x4   = transform_idct_4x4_fallback;