libaacplus: remove FF_API_OLD_ENCODE_AUDIO cruft

Signed-off-by: Paul B Mahol <onemda@gmail.com>
sws/fill_rgb2yuv_table: avoid 2 divisions

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
sws/fill_rgb2yuv_table: increase precission to 32bit

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
sws/fill_rgb2yuv_table: use ROUNDED_DIV

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>