Fix out of bounds writes in vdp_generate_csc_matrix.

Wrong operator order would result in writing to incorrect
locations.

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
Update README for support for uncompressed data.

This means MPlayer command-line should be changed to
automatically fall back to software decoding.

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>