[FFmpeg-devel] GSoC Weekly report (libswscale)
bygrandao at gmail.com
Wed Aug 5 18:47:10 CEST 2015
New patch with the green line bug fixed.
Now I intend to speedup the work on the vertical scaling and also try to
the performance gap.
2015-07-29 10:05 GMT-03:00 Michael Niedermayer <michael at niedermayer.cc>:
> On Tue, Jul 28, 2015 at 11:39:59PM -0300, Pedro Arthur wrote:
> > > do you think this patch would be ready to push to main ffmpeg once
> > > this (and any other remaining) issues are fixed
> > > or is there still some speed loss ?
> > >
> > I think I should work a bit more on it, in my tests some cases there is
> > still 3% speed loss.
> > Usualy it occurs when the vertical filter size is ~1 so it processes one
> > line at a time. I think
> > if we process lines in "batches" it can be improved. But it is more
> > complex to implement
> > because for example there is filters which skips some lines, and the
> > required will
> > be increased.
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> Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB
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