[FFmpeg-user] Visualization filter colors and scale.

[Zsolt]

Paul B Mahol <onemda at gmail.com> ezt írta (időpont: 2019. szept. 6., P,
20:22):

> On 9/6/19, Zsolt <dqeswn at gmail.com> wrote:
> > Thanks for the reply.
> >
> > Paul B Mahol <onemda at gmail.com> ezt írta (időpont: 2019. szept. 6., P,
> > 19:05):
> >
> >>
> >> Very basic question, just add scale=.... after your A->V filter, do
> >> not forget to use  "," as filter separator.
> >>
> >
> >
> > Perhaps, however it doesn't work:
> > -filter_complex
> >
> "[0:a]showfreqs=s=1920x1080:cmode=combined:colors=#990000|#770000,format=yuv444p[vid],scale=out_color_matrix=bt709:out_range=pc"
> >
> > I get a not too helpful error: "Cannot find a matching stream for
> unlabeled
> > input pad 0 on filter Parsed_scale_2"
> >
>
> Your command is simply wrong. Read documentation carefully next time.
>

I can't see why though. I just added scale to the end of the filters, like
you said.