build amd64-specific stuff if possible
use faster (on new cpus) memcpy
set max long term ref frames number and set frames channel size to 1
capture 10 seconds; reuse input buffer; produce human readable error reports
use full swing conversion
read image directly, bypassing memimage and header generated by rio
add another FIXME
limit fps (in a dumb way)
encode in a separate thread
make rgb→yuv more readable
THAT'S A FIRST