[FFmpeg-devel] [PATCH] avfilter/dctdnoiz: add slice threading

Michael Niedermayer michaelni at gmx.at
Wed Aug 13 16:02:57 CEST 2014

On Sun, Aug 10, 2014 at 10:09:02PM +0200, Clément Bœsch wrote:
> ---
> I have one or two little things to cleanup after this but I think I'm mostly
> done. The filter is now usable from a performance point of view (not for
> real-time, but it doesn't decades to process a normal sized image anymore):
> Stream #0:0: Video: png, rgb24, 1445x1080, 25 tbr, 25 tbn, 25 tbc
> ./ffmpeg-2.3 -i in.png -vf dctdnoiz=15 -f null -  38.34s user 0.01s system 98% cpu 39.124 total
> ./ffmpeg -i in.png -vf dctdnoiz=15 -f null -  5.06s user 0.02s system 621% cpu 0.817 total
> I will mention this stuff in the Changelog when this is accepted.
> Ideally, I'd really love to have a FATE test, but I see no such thing as
> "threshold" video tests for avfilter in FATE in order to support float-based
> filters. Another solution as already is to make dctdnoiz integer-only but I'm
> not planing to do that anytime soon.
> ---
>  libavfilter/vf_dctdnoiz.c | 114 ++++++++++++++++++++++++++++++++++------------
>  1 file changed, 84 insertions(+), 30 deletions(-)


Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

If you think the mosad wants you dead since a long time then you are either
wrong or dead since a long time.
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