On the host (based on MPlayer-1.0rc2 with a bayer video-filter hack, adjusted
for the first pixel):

./configure --disable-ivtv --disable-vidix-external --with-vidix-drivers=

nc -l -p 3000 | ./mplayer - -demuxer  rawvideo -rawvideo w=320:h=240:format=ba81:size=76800 -vf ba81

Update of 28.05.2011:

media-ctl and linux patches are deprecated. media-ctl works out of the box,
on the kernel side used v2.6.39 + patches from Javier Martin:

http://article.gmane.org/gmane.linux.drivers.video-input-infrastructure/33105
http://article.gmane.org/gmane.linux.drivers.video-input-infrastructure/33106

On the beagleboard:

rmmod omap3_isp
modprobe iommu2
modprobe omap3_isp

media-ctl -r -l '"mt9p031 2-0048":0->"OMAP3 ISP CCDC":0[1], "OMAP3 ISP CCDC":1->"OMAP3 ISP CCDC output":0[1]'
media-ctl -f '"mt9p031 2-0048":0[SGRBG12 320x240], "OMAP3 ISP CCDC":0[SGRBG8 320x240], "OMAP3 ISP CCDC":1[SGRBG8 320x240]'
./yavta --stdout -f SGRBG8 -s 320x240 -n 4 --capture=10000 --skip 3 -F $(media-ctl -e "OMAP3 ISP CCDC output") | nc <mplayer-server-IP> 3000


Sources:

yavta:		commit 53e3741023874f30f6fb4eaa28e89ee9bd2ce705 +
		yavta.gitdiff

(add "--stdout" option, Y8 and SGRBG8 formats)

media-ctl:	commit a183835abdefb8e40650fc9eb22e2d291aac9883

mplayer: ./MPlayer-1.0rc2

(add bayer-8 (ba81) video-filter hack)