[FFmpeg-devel] [RFC][PATCH] libwebp: combine libwebp_anim and libwebp encoders into one
michaelni at gmx.at
Mon May 25 00:21:47 CEST 2015
On Sun, May 24, 2015 at 06:39:05PM -0300, James Almer wrote:
> On 24/05/15 5:59 PM, Michael Niedermayer wrote:
> > On Sun, May 24, 2015 at 04:22:42PM -0300, James Almer wrote:
> > try it yourself
> > ./ffmpeg -i matrixbench_mpeg2.mpg -cr_threshold 10000 -cr_size 16 -t 10 -loop 2 -vcodec libwebp test.webp
> > works with the old encoder but after this patch produces a video
> > that is a flickering checkerboard
> This happens when the WebPAnimEncoder API is used alongside one or two of those -cr_
> options. Unrelated to this patch, but as i said above a good argument against it.
> It should be fixed, for that matter. CCing Urvang Joshi.
> > Also libwebp lacks a maintainer in MAINTAINERs
> > anyone volunteers ?
> libwebpenc_animencoder.c should be maintained by the person that wrote/submitted it.
do you agree to be the official maintainer for the file ?
if so please send a patch which adds you to the MAINTAINERs file
> > I might be willing to maintain it when the 2 encoders can be tested
> > without the need to build ffmpeg twice (they can be in one .c file for
> > that or in multiple of course),
> I'm not sure what you mean. The two encoders can be tested without having to build
> ffmpeg twice, assuming you have a new enough libwebp/mux installed. They are currently
> independent, and you can use one or the other with -c:v or such.
yes, i mentioned it because the patch would have changed that
i was a bit afraid that i could loose the ability to easily test
it wouldnt matter if one codepath could be dropped but IIUC the
libwebpenc_animencoder needs git master of libwebp so few people
will have support for it
Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB
When the tyrant has disposed of foreign enemies by conquest or treaty, and
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some war or other, in order that the people may require a leader. -- Plato
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