[FFmpeg-devel] [PATCH] configure: deprecate libpostproc and pp filter

Paul B Mahol onemda at gmail.com
Fri Apr 27 13:39:13 EEST 2018

On 4/27/18, Michael Niedermayer <michael at niedermayer.cc> wrote:
> On Fri, Apr 27, 2018 at 02:36:05AM +0200, Michael Niedermayer wrote:
>> On Fri, Apr 27, 2018 at 12:08:16AM +0100, Josh de Kock wrote:
>> > The postproc library is only used in a single filter, so should be moved
>> > into the filter itself if the filter was to stay, but the filter has all
>> > of its internal filters now in lavfi itself. (Also it's a bit weird to
>> > have a separate library of filters which is used in a filter in the
>> > filter library).
>> > ---
>> >  configure | 6 ++++--
>> >  1 file changed, 4 insertions(+), 2 deletions(-)
>> That patch is a bit surprising.
>> What prompted you to write this ?
>> Also, dont you think that before suggesting to deprecate a lib it would
>> make
>> sense to talk with the author and maintainer of the library in question ?
>> Either way, the first question to ask would be
>> "why was/is it a seperate library"
>> I think, you do not know,
>> And you should understand why things are as they are before suggesting to
>> deprecate, move or otherwise change them
> Elaborating on this a bit
> The first step is to understand the current state of things, why is
> libpostproc where it is. (it seems noone asked the maintainer / author)
> after its understood, next is to discuss whats the best thing for the
> project
> Some discussion occured on IRC but people neither understood why its in a
> seperate lib currently nor where anyone who maintains or who wrote it
> involved
> in this discussion, making this discussion a bit headless and blind
> I also think IRC is not ideal for this discussion as only a small subset
> of people will be there when something is discussed ...
> Once a consensus is reached what is best to do, that should then be
> implemented.
> We have not reached this point nor has anything that was suggested been
> implemented.
> The last step then is to deprecate any previous places that are no longer
> relevant. So this patch is premature, other steps have to be done first

Libpostproc was removed from Libav, you failed somehow merge that change?

They moved it to abandoned repo.

We should not follow that.

Libpostproc is very small in size and trivial GPL code and all funcionality
should be moved to pp filter in libavfilter.

No point to have separate library nobody really uses.

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