[FFmpeg-user] cellauto example

[Clément Bœsch]

On Wed, Feb 01, 2012 at 03:51:55PM -0800, FFmichael wrote:
> 
> Clément Bœsch wrote
> > 
> > On Wed, Feb 01, 2012 at 03:40:39PM -0800, FFmichael wrote:
> >> 
> >> Clément Bœsch wrote
> >> > 
> >> > On Wed, Feb 01, 2012 at 03:07:31PM -0800, FFmichael wrote:
> >> >> I am trying to experiment with the new cellauto filer but am having
> >> >> trouble
> >> >> getting a usable filter chain.
> >> >> Do I need a nullsink or testsrc or something else to enable it to
> >> work?
> >> >> 
> >> >> Does anyone have an example of a working full command line for
> >> cellauto
> >> >> generation?
> >> >> 
> >> > 
> >> > ffplay -f lavfi cellauto=f=/etc/hosts ?
> >> > 
> >> > 
> >> 
> >> Thanks but I meant FFmpeg not FFplay to generate a file not necessarily
> >> on
> >> the fly....
> >> 
> > 
> > Then ffmpeg -f lavfi -i cellauto=f=/etc/hosts -t 10 out.mpg maybe?
> > 
> > 
> 
> On the right track but "-f lavfi" causes failure.....
> 
> ffmpeg version N-37402-gc673671 Copyright (c) 2000-2012 the FFmpeg
> developers
>   built on Feb  1 2012 08:15:40 with gcc 4.2.1 (Apple Inc. build 5664)
>   configuration: --prefix=/opt/local --enable-gpl --enable-postproc
> --enable-swscale --enable-avfilter --enable-libmp3lame --enable-libvorbis
> --enable-libtheora --enable-libdirac --enable-libschroedinger
> --enable-libfaac --enable-libxvid --enable-libx264 --enable-libvpx
> --enable-libspeex --enable-nonfree --mandir=/opt/local/share/man
> --enable-shared --enable-pthreads --disable-indevs --enable-libfreetype
> --cc=/usr/bin/gcc-4.2 --arch=x86_64
>   libavutil      51. 36.100 / 51. 36.100
>   libavcodec     54.  0.102 / 54.  0.102
>   libavformat    54.  0.100 / 54.  0.100
>   libavdevice    53.  4.100 / 53.  4.100
>   libavfilter     2. 60.100 /  2. 60.100
>   libswscale      2.  1.100 /  2.  1.100
>   libswresample   0.  6.100 /  0.  6.100
>   libpostproc    52.  0.100 / 52.  0.100
> Unknown input format: 'lavfi'
> 

Remove --disable-indevs; lavfi is a filter "device".

[...]

-- 
Clément B.
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