I'm no expert when it comes to AV stuff. Anyway I wanted to do a quick tutorial for my little nephew, so i've developed this using ffmpeg:
ffmpeg -ar 48000 -vol 512 -f oss -i /dev/audio -t 10 -s 1280x800 -sameq -f x11grab -r 30 -i :0.0 movie.mpg
Now the size, is the size of my screen, however can I change this or will I just do it by re-encoding later?
Also, padtop adds black to the top, but still starts at 0. On trying croptop it errored out. I was wanting to just grab a section of the screen, say a rect ((100,100)(640,480)), at a higher res, any ideas?
I banged in '-sameq' and the quality of the text improved greatly, but does that override any other settings, if so what?
Any other tips and tricks?