check_diff        249 libavcodec/fft-test.c             check_diff((float *)tab_ref, tab2, fft_size);
check_diff        255 libavcodec/fft-test.c             check_diff((float *)tab_ref, tab2, fft_size / 2);
check_diff        263 libavcodec/fft-test.c         check_diff((float *)tab_ref, (float *)tab, fft_size * 2);