[vlc-devel] [PATCH] contrib: remove inappropriate HAVE_NEON

Jean-Baptiste Kempf jb at videolan.org
Tue Nov 20 14:59:42 CET 2012

On 18 Nov, Rémi Denis-Courmont wrote :
> Le dimanche 18 novembre 2012 02:44:39, Edward Wang a écrit :
> > Since ARMv7 Android builds are now built to tegra2 with a special dynamic
> > NEON loader for libav, we can't assume all ARMv7 devices have NEON.
> libav might be the only library with significant NEON optimization. But it is 
> surely not the only piece of code using floating point. Audio is heavily 
> dependent on single precision in particular.

True, but the NO_NEON hack for Android is not really useful anymore.

> If you really turn off NEON, you should at least enable VFP. According to Måns, 
> VFPv3-D16 is available on all relevant ARMv7-A processors.

I think this is what people do, usually.

Best regards,

Jean-Baptiste Kempf
http://www.jbkempf.com/ - +33 672 704 734
Sent from my Electronic Device

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