[FFmpeg-devel] [PATCH] avfilter: add Audio Video Sync Test filter

Tristan Matthews tmatth at videolan.org
Tue Apr 12 21:51:51 EEST 2022


On Tue, Apr 12, 2022 at 2:05 PM Paul B Mahol <onemda at gmail.com> wrote:

> On Tue, Apr 12, 2022 at 7:43 PM Tristan Matthews <tmatth at videolan.org>
> wrote:
>
> > Hi,
> >
> > On Mon, Apr 11, 2022 at 2:02 PM Paul B Mahol <onemda at gmail.com> wrote:
> >
> > > On Sat, Apr 9, 2022 at 9:21 PM Paul B Mahol <onemda at gmail.com> wrote:
> > >
> > > >
> > > > will apply soon
> > > >
> > >
> > >
> > > Forgot to apply, will apply in next 24h.
> > >
> >
> > Am I missing something obvious or is there a default that's maybe not
> set?
> > Getting:
> > ./ffmpeg_g -loglevel debug -y -t 5 -hide_banner -f lavfi -i avsynctest -f
> > mp4 avsync.mp4
> >  [lavfi @ 0x55e4454c37c0] Output pad "video" with type video of the
> filter
> > instance "Parsed_avsynctest_0" of avsynctest not connected to any
> > destination
> > avsynctest: Invalid argument
> >
> > whereas the equivalent works with e.g., testsrc
> >
>
> Filter have 2 outputs, unlike other filters with single output.
>
> Need to specify that 2nd output is also output with [out1]
>
>
Oh cheers, this worked:
avsynctest=[out0][out1]


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