[FFmpeg-user] Visualization filter colors and scale.

[Paul B Mahol]

On 9/6/19, Zsolt <dqeswn at gmail.com> wrote:
> 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.

[vid] should be at far end.

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