ARMv4 vs ARMv6

Graeme Gregory graeme at openmoko.org
Thu Oct 16 15:42:37 CEST 2008


On Thu, 2008-10-16 at 15:31 +0200, Koen Kooi wrote:
> It wouldn't 'require' armv6 libs, it would still work fine if you  
> install the armv6 mplayer with only armv4t libs in the rootfs. And  
> FWIW, I expect mplayer to run approx. twice as fast when compiled with  
> armv6 since ffmpeg has seen a lot of optimization for armv6 (and  
> armv6t2).
> And more importantly: mplayer has an internal copy of ffmpeg, so your  
> example doesn't fly.
> 

Thanks for reminding me koen, we actually already do this trick, some of
the zaurus machine are compiled armv5, but for mplayer on these devices
we use iwmmxt arch of gcc to get an extra 5fps out of mplayer. This
compiled mplayer has different arch to the system libs, but just works
(tm).

Graeme





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