[FFmpeg-user] ffmpeg screencapture from a virtual xserver larger than the physical screen

[Clément Bœsch]

On Thu, Nov 19, 2015 at 08:07:59PM +0100, Zenny wrote:
> On 11/19/15, Nicolas George <george at nsup.org> wrote:
> > Le nonidi 29 brumaire, an CCXXIV, Zenny a écrit :
> >> "[NULL @ 0x3d89f60] Requested output format 'opengl' is not a suitable
> >> output format
> >> pipe:: Invalid argument"
> >
> > Your build of FFmpeg seems to be missing it. You probably need to rebuild
> > or
> > ask to the person who provided it. Maybe "-f xv" will work for you, but it
> > is significantly inferior to opengl.
> 
> With -f xv, I got:
> 
> "Could not write header for output file #0 (incorrect codec parameters
> ?): Not yet implemented in FFmpeg, patches welcome"
> 

This is missing the error message above, which is "Unsupported pixel
format ...". So try -pix_fmt yuv420p.

-- 
Clément B.
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