fdct_4x4_8_fallback   36 acceleration-speed/dct-scalar.h     fdct_4x4_8_fallback(coeffs, residuals+x+y*stride, stride);
fdct_4x4_8_fallback   86 libde265/fallback-dct.h void fdct_4x4_8_fallback(int16_t *coeffs, const int16_t *input, ptrdiff_t stride);
fdct_4x4_8_fallback  118 libde265/fallback.cc   accel->fwd_transform_8[0] = fdct_4x4_8_fallback;