[gst-devel] [PATCH] audioconvert: add NEON acceleration for some conversions
rob at ti.com
Mon Aug 10 18:38:25 CEST 2009
On Aug 10, 2009, at 9:59 AM, Sebastian Dröge wrote:
> FYI, David Schleef has partially converted audioconvert to use orc.
> Together with the orc VFP backend this would obsolete your patch I
>  http://cgit.freedesktop.org/~ds/gst-plugins-base/log/?h=orc
ahh, looks like so far just the integer unpack functions. So not the
two functions I needed (unpack_float_le and quantize_signed_tpdf_none)
Any rough estimate on timeframe for orc-ified audioconvert? Is it
worthwhile for me to try and cleanup my current patch to integrate as
a temporary solution. Or should I just try and learn orc and see if I
could help there.
Also.. I saw something on David's blog about a NEON backend for orc,
but not opensrc. Anyone know if this is something that will
eventually be opensrc?
To be honest, in most use-cases most of the multimedia related heavy-
lifting on our platform is done by hw or DSP. Most of the time we
don't use audioconvert, audioresample, software volume, software
colorspace conversion, etc, etc. It is only a few cases (like this)
where we need some NEON acceleration. Is it possible to plug-in hand-
written optimized versions of a few functions without needing a whole
NEON backend for orc?
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