ffmpeg: raise level for message printed in case of auto-select pixel format

Increase visibility, in order to decrease troubleshooting for
users generating non playable H.264 content.

Signed-off-by: Carl Eugen Hoyos <cehoyos@ag.or.at>
libxvid: cosmetics: Realign the code

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