[pulseaudio-discuss] [PATCH 2/2] core: Add ARM NEON optimized sample conversion code

Peter Meerwald pmeerw at pmeerw.net
Thu Oct 25 01:19:29 PDT 2012


> > > conversion may be off by one for some samples due to rounding issues
> > 
> > I'm not sure about the impact of this. Is there no way to avoid the
> > rounding error?
> Thinking about it some more, I think having sconv be exactly the same
> across implementations is important. Is this some sort of NEON quirk?
> >From what I can tell, the result of the vmul is off-by-one.

I'll have a closer look, certainly interesting; not sure how relevant -- 
generally don't use floating point if you expect exact results

on a similar note, I have never checked that floating point speex 
resampling is sample-exact across platforms/optimization settings



Peter Meerwald
+43-664-2444418 (mobile)

More information about the pulseaudio-discuss mailing list