[FFmpeg-devel] [PATCH 03/12] lavfi: drop vf_qp

[Anton Khirnov]

Quoting Carl Eugen Hoyos (2020-02-24 13:50:57)
> Am Mo., 24. Feb. 2020 um 13:40 Uhr schrieb Anton Khirnov <anton at khirnov.net>:
> >
> > It fundamentally depends on an API that has been deprecated for five
> > years, has seen no commits since that time and is of highly dubious
> > usefulness.
> 
> Please explain how the removed functionality was replaced.

It was not, for the reasons mentioned in the commit message. In my view,
the fact that nobody fixed it in all that time proves that nobody cares
about this functionality and thus that there is no value in keeping it.

Furthermore, I believe this filter (and all the associated
"postprocessing" ones) are anachronistic relics of the DivX era. They
were in fashion around ~2005 (though I doubt they were actually
improving anything even then) but nobody with a clue has used them since
H.264 took over. The value they bring to the project is actually
negative, since users who don't know any better might use them under
false impression that they would improve video quality. MPV removed
those filters eight years ago and AFAIK nobody ever missed them.

-- 
Anton Khirnov