[FFmpeg-devel] Ffmpeg with own filter

Paul B Mahol onemda at gmail.com
Wed May 25 16:16:35 CEST 2016


Dana 25. 5. 2016. 15:12 osoba "Semen Zaytsev" <svzj95 at gmail.com> napisala
je:
>
> I defined my filter in those files, and i string about configure this
> filter in config.mak, I move content of vf_edgedetect.c to vf_foobar.c,
> defined in makefile and in allfilters.c, when i trying to use "ffmpeg -i
> http://samples.ffmpeg.org/image-samples/lena.pnm -vf foobar foobar.png".
> I'm receiving [AVFilterGraph @ 00000000003a8c40] No such filter:
> 'foobar' Error opening filters!
>

Look at tail of vf_foobar.c, there must be foobar defined there too.

> 2016-05-25 16:10 GMT+03:00 Semen Zaytsev <svzj95 at gmail.com>:
>
> > I defined my filter in those files, and i string about configure this
> > filter in config.mak, I content of vf_edgedetect.c, defined in makefile
and
> > in allfilters.c, when i trying to use "ffmpeg -i
> > http://samples.ffmpeg.org/image-samples/lena.pnm -vf foobar foobar.png".
> > I'm receiving [AVFilterGraph @ 00000000003a8c40] No such filter:
> > 'foobar' Error opening filters!
> >
> > 2016-05-25 16:03 GMT+03:00 Paul B Mahol <onemda at gmail.com>:
> >
> >> On 5/25/16, Semen Zaytsev <svzj95 at gmail.com> wrote:
> >> > Hi guys, i tried to use information in wirting_filters.txt, but when
i'm
> >> > compiling with MSYS2 in MinGWx64 in Windows, the filter is in config,
> >> but
> >> > i'can not use in ffmpeg by command.
> >> > How do I resolve this problem?
> >> > _______________________________________________
> >> > ffmpeg-devel mailing list
> >> > ffmpeg-devel at ffmpeg.org
> >> > http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
> >> >
> >>
> >> Filter must be defined in libavfilter/Makefile and
> >> libavfilter/allfilters.c
> >> _______________________________________________
> >> ffmpeg-devel mailing list
> >> ffmpeg-devel at ffmpeg.org
> >> http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
> >>
> >
> >
> _______________________________________________
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> ffmpeg-devel at ffmpeg.org
> http://ffmpeg.org/mailman/listinfo/ffmpeg-devel


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