Rodolfo Medina wrote: > I posted this to Mplayer mailing list but got no answer so am sharing it here > hoping someone can help... > > I capture my webcam stream with: > > $ mencoder tv:// -tv > driver=v4l2:width=640:height=480:device=/dev/video0:forceaudio:alsa:adevice=hw.1,0 > -ovc lavc -oac mp3lame -lameopts cbr:br=64:mode=3 -o webcam.avi > > and it works fine. How can I modify the above command so to capture desktop > screen instead (with audio)? I suppose it's a matter of replacing /dev/video0 > with something else but don't know what nor the correct syntax... >
Nope, it's completely different. Your desktop only generates a video stream at the interface between the video card and the monitor. You can tap into that with an HDMI capture device, or you can run software that snaps multiple still shots of your screen and stitches them into video later: $ apt search screencast byzanz/stable,unstable 0.3.0+git20160312-3 amd64 small screencast creator gnome-flashback/stable 3.30.0-3 amd64 helper application for the GNOME Flashback session gnome-shell-extension-easyscreencast/stable 1.0.2-2 all GNOME Shell extension to simplify video recording gtk-recordmydesktop/stable 0.3.8-4.1 all Graphical frontend for recordMyDesktop screencast tool kazam/stable,unstable 1.4.5-2.1 all screencast and screenshot application created with design in mind key-mon/stable 1.17-1 all Utility to show live keyboard and mouse status screenkey/stable 0.9-2 all screencast tool to display your keystrokes shelr/stable,unstable 0.16.3-2 all Utility for plain text screencasting vokoscreen/stable 2.5.0-dmo2 amd64 Easy to use screencast creator vokoscreen-ng/buster-backports 3.0.3-1~bpo10+1 amd64 easy to use screencast creator -dsr-
