The command pactl list sources will print a list of supported PulseAudio sources (i.e. The first mode in the list is the highest, let's go with it.

VIRTUAL1 disconnected (normal left inverted right x axis y axis) VGA1 disconnected (normal left inverted right x axis y axis) HDMI1 disconnected (normal left inverted right x axis y axis) LVDS1 connected 1366x768+0+0 (normal left inverted right x axis y axis) 344mm x 193mmĭP1 disconnected (normal left inverted right x axis y axis) For example: Screen 0: minimum 8 x 8, current 1366 x 768, maximum 32767 x 32767 Type xrandr to print a list of supported video modes.

I will also be using PulseAudio as the audio framework and x11grab for capturing the video part.įfmpeg -video_size -framerate -f x11grab -i :0.0 -f pulse -ac 2 -i output.mkvĪs you may see you need to know the resolution, the video frame rate and the audio source. I'm using one of the latest versions (as of this writing), 4.1.6 on a Linux box (Debian). Record a video of your desktop - and whatever happens on it - is almost dead simple with FFmpeg.

Linux ffmpeg preview window