[MPlayer-dev-eng] Fix compilation with recent libav

[Carl Eugen Hoyos]

Etienne Buira <etienne.buira <at> free.fr> writes:

> This patch fixes mplayer's compilation with recent changes from ffmpeg.
> 
> I am not an expert of mplayer's build system, so please double check
> carefully.

Applied your latest version.
Next time, please try to avoid trailing white space.

Thank you for your efforts, Carl Eugen