- Install Istanbul.
- Configure recording 3D so that there are no flickers or artifacts.
- Turn off sound so that it doesn't hand during transcoding.
- Make a script for your session.
- Start your VM.
- Record your video.
- Select the display of the VM for recording.
- Start recording.
- Perform your various tasks.
- Read the script while recording your screencast to make sure the timing is right.
- Save the video as OGG Theora (video.ogv).
- Install Audacity
- Set up Audacity and a movie player on the same desktop.
- Record your audio
- Start recording and wait for a predefined amount (N) of time before starting the movie.
- Read the script along with the movie.
- Post-process the sound, removing noise.
- Cut off the first N seconds of the audio to bring it in sync with the video.
- Save the audio as OGG Vorbis (audio.ogg).
- Mux the audio and video.
- gst-launch-0.10 filesrc location=video.ogv ! oggdemux ! theoraparse ! oggmux name=mux ! filesink location=screencast.ogv filesrc location=audio.ogg ! oggdemux ! vorbisparse ! mux. (all on one line)
Thursday, January 29, 2009
Creating a (painful) screencast in Gnome
Posted by Daniel Bo at 12:05 PM