I've got dvbufs9xx plugin from http://gitorious.org/~willi68/open-duckbox-project-sh4/tdt-openwrt/blobs/master/tdt/openwrt/package/contrib/apps/vdrdev/patches/100-dvb.patch with small modifications to run video/audio on a mipsel based stb. OSD is even working with PearlHD and lowlevel anthra. Good luck.