[FFmpeg-user] cellauto example

FFmichael michael.rampe at gmail.com
Thu Feb 2 00:51:55 CET 2012


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'

FFmichael

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