GP2x Transcoding
I had messed with the transcoding script a few times, and sadly got to a point where the video playback got pretty laggy. I couldn’t stand watching when the audio greatly preceded the video, so it was time for some research. My current command:
/usr/bin/mencoder "${SOURCE}" -o ${DESTINATION} -ovc xvid -xvidencopts bitrate=300 -vf scale=320:240 -ofps 30 -oac mp3lame -lameopts abr:br=128 mode=3
It actually works. I would like to say that I figured this out, but a lot of that is gobbledygook to me. I can tell you that the bitrate is down, the scale is the display resolution of the device, and that it’s using xvid and lame in an avi wrapper. That’s more than I might have known a year ago. 
I actually got it from wiki.gp2x.org which seems a useful resource in general.
