[opus] [PATCH] 02-Add CELT filter optimizations

Timothy B. Terriberry tterribe at xiph.org
Wed May 22 15:48:25 PDT 2013

Aurélien Zanelli wrote:
> Patch changes are:
> - Use MAC16_16 macros instead of (sum += a*b) and unroll a loop by 2. It
> increase performance when using optimized macros (ex: ARMv5E). A
> possible side effect of loop unroll is that i don't check for odd length
> here.
> - Add NEON version of FIR filter and autocorr
> - Add a section in autoconf in order to check NEON support

I split out the arch-independent changes and committed them as

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