[FFmpeg-devel] GSoC Weekly report (libswscale)

[Pedro Arthur]

New patch with the green line bug fixed.
Now I intend to speedup the work on the vertical scaling and also try to
reduce
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
>
> ok
>
>
> > 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
> memory
> > required will
> > be increased.
> > _______________________________________________
> > ffmpeg-devel mailing list
> > ffmpeg-devel at ffmpeg.org
> > http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
>
> --
> Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB
>
> Many that live deserve death. And some that die deserve life. Can you give
> it to them? Then do not be too eager to deal out death in judgement. For
> even the very wise cannot see all ends. -- Gandalf
>
> _______________________________________________
> ffmpeg-devel mailing list
> ffmpeg-devel at ffmpeg.org
> http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
>
>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: swscale.patch
Type: text/x-patch
Size: 34072 bytes
Desc: not available
URL: <http://ffmpeg.org/pipermail/ffmpeg-devel/attachments/20150805/8ae4bc9d/attachment.bin>