[FFmpeg-user] question about color filter

[johnd]

this page http://ffmpeg.org/ffmpeg.html



says:

To generate 5 seconds of pure red video using lavfi color source:
 	

ffmpeg -filter_complex 'color=red' -t 5 out.mkv


when I run the command I get this output

bash-4.2$ ffmpeg -filter_complex 'color=red' -t 5 out.mkv                                 
ffmpeg version N-48732-g2c16bf2 Copyright (c) 2000-2013 the FFmpeg developers
  built on Jan 14 2013 14:12:16 with gcc 4.7.1 (GCC)
  configuration: --enable-filter=color --enable-libx264 --enable-gpl --enable-libfdk-aac --enable-nonfree
  libavutil      52. 13.100 / 52. 13.100
  libavcodec     54. 86.100 / 54. 86.100
  libavformat    54. 59.107 / 54. 59.107
  libavdevice    54.  3.102 / 54.  3.102
  libavfilter     3. 32.100 /  3. 32.100
  libswscale      2.  1.103 /  2.  1.103
  libswresample   0. 17.102 /  0. 17.102
  libpostproc    52.  2.100 / 52.  2.100
[color @ 0x19ba360] Missing key or no key/value separator found after key 'red'
[AVFilterGraph @ 0x19ba100] Error initializing filter 'color' with args 'red'
Error configuring filters.





I was just guesing and found this:

ffmpeg -filter_complex   color -t 5 out.mp4

this makes a video that is black (this is actually what I need)