[FFmpeg-devel] [PATCH 1/2] fftools/ffmpeg_filter: add -autoscale to disable/enable the default scale

[Eoff, Ullysses A]

> From: ffmpeg-devel [mailto:ffmpeg-devel-bounces at ffmpeg.org] On Behalf Of Michael Niedermayer
> On Mon, Jul 15, 2019 at 06:38:35PM +0800, Linjie Fu wrote:
> > +    { "autoscale",        HAS_ARG | OPT_BOOL | OPT_SPEC |
> > +                          OPT_EXPERT | OPT_INPUT,                                { .off = OFFSET(autoscale) },
> > +        "automatically insert correct scale filters" },
> 
> I think this description is inadequate to understand what the option does.
> Scale filters are inserted at various places (for example within a filter
> graph). This option here affects a specific case.
> 

Would this be sufficient?

"automatically insert a scale filter to scale the output of all frames to
  match the resolution of the initial frame"

If not, any other suggestions?

Thanks,
U. Artie