glc - ALSA and OpenGL video capture tool

Helpful link:
http://www.dedoimedo.com/computers/glc.html

Capture:
glc-capture executable
Use Shift+F8 to start/stop recording.

Play:
glc-play recorded_file.glc
Encode?
glc-play filename.glc -y 1 -o - | mencoder-demuxer y4m - -ovc lavc -lavcopts vcodec-mpeg4:vbitrate=3000 -o output.avi