View Single Post
spanner's Avatar
Posts: 253 | Thanked: 184 times | Joined on Nov 2009 @ Bristol, UK
#15
Originally Posted by silviumc View Post
AFAIK, the media player from N900 has a module that takes advantage of the video card to accelerate playback for some codecs (H.264 being one of them). Can't this acceleration be patched into MPlayer as well?
The N900 hardware will only accelerate baseline H.264, it's not because the Nokia devs were too lazy to 'patch in' support for Main Profile in Media Player.
So HW acceleration of Main is not going to be possible for mplayer either.

The main reason is that CABAC decoding is CPU intensive and not parallelisable. B-frames add complexity & extra memory requirements too, but I think it's CABAC that's the killer.

edit: Your stream is Level 4 too. That's up to 20Mbit/s, 1920x1080 @ 30fps. If I were the N900's media player I would take a look at it & say 'no thanks' too!

Last edited by spanner; 2010-05-30 at 08:18.
 

The Following User Says Thank You to spanner For This Useful Post: