[FFmpeg-user] Transcoding (dvvideo -> libx264) --> not video, only gray

Iban Garcia ibantxo28 at gmail.com
Fri Apr 13 10:29:55 CEST 2012


Many Thanks, Carl. " -pix_fmt yuv420p " worked for me.
But, I have been testing a little bit more now... and... I know what was
the problem... "VLC player" version.

With my old VLC version... yuv420p was played correctly, but not yuv422p.
With my new VLC version... BOTH of them are viewed correctly.

My new VLC player version is: 2.0.1

Many thanks!!!



2012/4/13 Carl Eugen Hoyos <cehoyos at ag.or.at>

> Iban Garcia <ibantxo28 <at> gmail.com> writes:
>
> > But all tests from dvvideo to libx264 makes all frames in gray
> > (all pixels are gray in each frame)
>
> Using ffplay (or ffmpeg -i kkk.mp4 out.avi) or another application?
>
> > x264 0.122.x
> > built on Apr 12 2012, gcc: 4.5.1 20101208 [gcc-4_5-branch revision
> 167585]
> > configuration: --bit-depth=8 --chroma-format=all
>
> Since you did not restrict the x264 chroma formats, ...
>
> > Incompatible pixel format 'yuv411p' for codec 'libx264',
> > auto-selecting format 'yuv422p'
>
> ... yuv422p was chosen.
> Add -pix_fmt yuv420p to your command line.
>
> Carl Eugen
>
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