opus - Dec 2014 - [ARM][FFT][NEON] Integrate Ne10 into Opus?

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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Hi Phil,

Thanks for letting us know. I will start looking into integrating it into
opus soon.

Regards,
Vish

On 18 December 2014 at 03:56, Phil Wang <Phil.Wang at arm.com>
wrote:
>
> 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.
>
> -- IMPORTANT NOTICE: The contents of this email and any attachments are
> confidential and may also be privileged. If you are not the intended
> recipient, please notify the sender immediately and do not disclose the
> contents to any other person, use it for any purpose, or store or copy the
> information in any medium.  Thank you.
>
> ARM Limited, Registered office 110 Fulbourn Road, Cambridge CB1 9NJ,
> Registered in England & Wales, Company No:  2557590
> ARM Holdings plc, Registered office 110 Fulbourn Road, Cambridge CB1 9NJ,
> Registered in England & Wales, Company No:  2548782
>
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