[FFmpeg-cvslog] ffmpeg_filter: Fix non jpeg yuv in jpeg support

[Carl Eugen Hoyos]

Michael Niedermayer <git <at> videolan.org> writes:

> ffmpeg_filter: Fix non jpeg yuv in jpeg support
> 
> This is a regression, did not bisect so dont know what 
> caused it but likely some changes to the command line 
> handling code.

Regression since 0.9
I backported the fix to 2.0, earlier branches need 2ae91c86
(1.2, likely 1.1) or the patch does not compile (earlier).

Carl Eugen