[opus] [ARM][FFT][NEON] Integrate Ne10 into Opus?

[Phil Wang]

Hi Ralph,

I have pushed patches to enable radix 3 and radix 5. Github: https://github.com/projectNe10/Ne10/releases/tag/v1.2.0

Best Regards,
Phil Wang


> Date: Thu, 11 Dec 2014 10:46:50 -0800
> From: Ralph Giles <giles at thaumas.net>
> Subject: Re: [opus] [ARM][FFT][NEON] Integrate Ne10 into Opus?
> To: opus at xiph.org
> Message-ID: <5489E69A.5000305 at thaumas.net>
> Content-Type: text/plain; charset=windows-1252
>
> On 2014-12-10 7:26 PM, Phil Wang wrote:
>
> > I am working on Ne10 project. Ne10 provides NEON optimized FFT
> > routines that are much faster (compared to those without NEON), on
> > most ARMv7-A and all ARMv8-A devices. How about integrate it into Opus?
>
> It looks like Ne10 only provides radix 2 and 4 fft? Opus requires radix
> 3 and 5 as well, to match normal VOIP packet lengths. I think you'll need to
> add support for those transform sizes before Ne10 will work for opus.

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