[FFmpeg-devel] [PATCH] avfilter: add afwtdn filter

[Paul B Mahol]

Hi,

On 6/2/20, Nicolas George <george at nsup.org> wrote:
> Paul B Mahol (12020-06-02):
>> Your opinion is not technical one.
>
> It pertains to usability.

Filter is already very usable.

>
>> > Insufficient: users have no idea what it means.
>> They need only to experiment, we can not teach them whole wavelet
>> theory in 5 minutes.
>
> You need to explain the practical facts, not the theory.

Practical facts is that they have different length, thus slower processing.

>
>> frames stands for _frame_   _s_ize.
>
> Not good, needs to be fixed.

What you propose as an alternative ?

>
>> Seriously there are other wavelet non-audio filters in libavfilter or
>> even libavcodec already, and they do not show from where numbers come.
>
> They should.

They can not put math theory into source code.