[FFmpeg-devel] [PATCH] lavfi: remove mp=denoise3d filter.
ubitux at gmail.com
Tue Dec 11 04:30:52 CET 2012
On Thu, Dec 06, 2012 at 12:57:01PM +0100, Clément Bœsch wrote:
> On Tue, Dec 04, 2012 at 07:02:39PM +0000, Loren Merritt wrote:
> > On Tue, 4 Dec 2012, Reimar Döffinger wrote:
> > > On 4 Dec 2012, at 00:31, Stefano Sabatini <stefasab at gmail.com> wrote:
> > >> On date Monday 2012-12-03 22:24:40 +0100, Clément Bÿÿsch encoded:
> > >>
> > >>> hqdn3d was meant to be a more efficient denoise3d filter, is supported
> > >>> natively, and is faster on my computer thanks to the ASM optimisations.
> > >>> ---
> > >>> doc/filters.texi | 1 -
> > >>> libavfilter/Makefile | 1 -
> > >>> libavfilter/libmpcodecs/vf_denoise3d.c | 268 ---------------------------------
> > >>> libavfilter/version.h | 2 +-
> > >>> libavfilter/vf_mp.c | 2 -
> > >>> 5 files changed, 1 insertion(+), 273 deletions(-)
> > >>> delete mode 100644 libavfilter/libmpcodecs/vf_denoise3d.c
> > >>
> > >> I'd like a reply from some MPlayer devs/users. Is there any advantage
> > >> in having or using this filter, as opposed to just keep hqdn3d?
> > >>
> > >> Possible advantages: it may be simpler, faster (even if delivering
> > >> less quality)? If there are no clear advantages, then sure we should
> > >> remove it.
> > >
> > > I'm not sure if it's just a matter of configuring hqdn3d to be faster, but I expect it should be a good bit faster on architectures that have no asm optimization.
> > > I didn't actually benchmark it though.
> > I optimized the C version too. hqdn3d minus asm is still faster than
> > denoise3d on sandybridge.
> > If someone wanted to port those optimizations then denoise3d might be
> > improved too, but failing that it's obsolete.
> I'll give 3 more days for people to decide if they want to keep it or not.
> If no decision is made, I'll push the drop. I think we should focus on
> more important filters to port.
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