rgb24_to_yuv420p 1907 libavcodec/imgconvert.c             .convert = rgb24_to_yuv420p
rgb24_to_yuv420p  136 tests/rotozoom.c     rgb24_to_yuv420p(lum_tab, cb_tab, cr_tab, rgb_tab, w, h);
rgb24_to_yuv420p  112 tests/videogen.c     rgb24_to_yuv420p(lum_tab, cb_tab, cr_tab, rgb_tab, w, h);