[FFmpeg-devel] [PATCH][TESTERS WANTED] avfilter: add apitch filter

[Paul B Mahol]

On 5/12/19, Nicolas George <george at nsup.org> wrote:
> Paul B Mahol (12019-05-12):
>> We have both setsar and setdar,
>
> And that is a mistake. We should have a single "set" filter that can
> change all the transparent numeric properties of frames (sar, time base,
> timestamp, colorspace, etc.). One of the benefits: it can notify users
> who set inconsistent values instead of just overriding them.
>
> Merging all this is one of my easy TODO list items.

You can not merge filters by removing other filters as that will break
user scripts.
Also there is already setparams filter.