N900 has a hardware decoder for h.264 I did something like that in 2014 https://talk.maemo.org/showthread.php?t=93178 But as Kabouik said it is difficult, because to get low latency you need to get hardware to work at several places in your software stack. Decoding and especially encoding for example which mostly includes proprietary software which in consumer products is mostly badly supported. (Last time i checked, nobody in the industry wants you to share your gfx card or the game you bought ) To make things worse every bug in your stack can destroy your latency. On N900 for example the wifi powersaving method can depending on your router introduce huge latency. There are bugs/incompatibilities in gstreamer0.10-maemo and gstreamer1.* Linux/maemo is not an realtime OS. Swapping, tracker, pulseaudio (is somehow cpu heavy on n900) and or other systems can introduce lags which you most likely wont fix.