I got it!
Just found out that if you use kmplayer with the actual mplayer engine (which for some reason wasn't available to me before), you can specify additional command line arguments for mplayer in the preferences. so i just entered
in General Options>MPlayer>Additional command line arguments, and voilá, i can view almost any video with audio streaming to the audio dongle on my router. nice!Code:-ao esd:192.168.1.1 -delay -0.5
the first part specifies the Esound output to the remote host, the -delay part fixes a 0.5 second video delay that i encountered.