Re: Video Overlay on C3200
Graeme Gregory <[email protected]>
| Newsgroups | gmane.comp.handhelds.openzaurus.devel |
|---|---|
| Message-ID | <[email protected]> |
On Tue, Mar 06, 2007 at 09:02:27PM +0000, Tim Chick wrote: > One thing I noticed is that mplayer by default was being compiled for arm v3 > instruction set. This meant that ldrh and strh were missing, and all the > pipeline optimisation done by the compiler was messed up. Compiling for > xscale drops cpu usage of video decode by about 20%! I guess this is why > there are armv5te packages on the feed browser, but it's not exactly clear > that those are the ones which should be used. In fact, why do the arm-v3 ones > even exist? arm v4 (strongarm) would be a better minimum? But why is there a > minimum when allpackages are built for an xscale? > By default it should be built for armv4, and I have built for armv5 and iwmmxt and seen very little difference in performance from armv4. Graeme ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV