[FFmpeg-devel] Post-processing filter Documentation

Michael Niedermayer michaelni at gmx.at
Wed Jan 21 13:45:06 CET 2015


On Wed, Jan 21, 2015 at 09:42:03AM +0100, Stefano Sabatini wrote:
> On date Tuesday 2015-01-20 22:34:15 +0530, Arwa Arif encoded:
> > >
> > > Still missing benchmarks and pp filter covering.
> > >
> > >
> 
> > What is meant by pp filter covering?
> 
> I mean that there are no images obtained by applying pp (and uspp as
> well).
>  
> > Do you want benchmark for each image? And by benchmark you mean runtime,
> > right?
> 
> No, I think you should use a complete video as benchmark. You can show
> the values in a separate dedicated section. For example you could use
> a low-quality matrix_bench.mpg.
> 
> For example:
> ffmpeg -i matrixbench_mpeg2.mpg -b:v 200k matrixbench_mpeg2-lq.mpg 
> 

> ffmpeg -i matrixbench_mpeg2-lq.mpg -an -c:v rawvideo matrixbench_mpeg2-lq.rawvideo.nut
> (the output is 2.8GiB here)
> 
> ffmpeg -benchmark -i matrixbench_mpeg2-lq.rawvideo.nut -vf PP -f null -

this could end up being limited by disk speed and not *pp

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

The real ebay dictionary, page 3
"Rare item" - "Common item with rare defect or maybe just a lie"
"Professional" - "'Toy' made in china, not functional except as doorstop"
"Experts will know" - "The seller hopes you are not an expert"
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 181 bytes
Desc: Digital signature
URL: <https://ffmpeg.org/pipermail/ffmpeg-devel/attachments/20150121/d6dd40a7/attachment.asc>


More information about the ffmpeg-devel mailing list