Question about playing 720p video on beagleboard

Hi, I'm working on beagleboard from same weeks, to realize a
multimedia platform able to play video in HD quality (720p).

I tried to play video using the TI codec with gstreamer, but
unfortunately the maximum resolution supported is 480p (854x480), so
now I would to understand if is possible to play video at 720p
(1280x720) using the DSP.
I read many post about the dsp-bridge and openmax but none of these
help me.
Have you some hint for me?

Thanks in advance