[theora] ffmpeg2theora bug: generation of a video from a series of images

Conrad Parker conrad at metadecks.org
Thu Mar 4 22:31:42 PST 2010


On 5 March 2010 15:26, Michael Opdenacker <michael at free-electrons.com> wrote:
> Hi J.,
>
> We are using ffmpeg2theora to produce an introduction video from a
> series of images:
>
> ffmpeg2theora-0.26.linux32.bin images/img-%03d.png -o intro.ogv
>
> The video that we get is huge and horrible, with lots of blinking colors:
> http://free-electrons.com/issues/ffmpeg2theora-mar5-2010/intro.ogv
>
> Here's what we had in the past:
> http://free-electrons.com/issues/ffmpeg2theora-mar5-2010/intro-correct.ogv
>
> This issue was introduced in ffmpeg2theora-0.25, and a work-around is to
> revert to ffmpeg2theora-0.24
> (http://v2v.cc/~j/ffmpeg2theora/ffmpeg2theora-0.24.linux32.bin.bz2). I
> also checked that this problem still happens with the latest snapshot
> release.
>
> All you need to reproduce this bug is in
> http://free-electrons.com/issues/ffmpeg2theora-mar5-2010/
>
> Even though the bug may not be in ffmpeg2theora, it would be great if
> you could fix it. Don't hesitate to ask me to make further tests if this
> can help.

perhaps you can track down the commit that introduced the different
behavior (eg. with git-svn and git bisect :)

Conrad.
(@CELF Jamboree atm :)


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