[opus] arm64 support

[Martin Storsjö]

Yes, it will work for armv7 and for armv7s. For arm64 you explicitly need 
to add --disable-asm to the configure line. This doesn't mean you lose any 
optimization, because there was none to begin with - opus doesn't have 
assembler optimizations for arm64 anyway - it's only the configure script 
which accidentally tries to enable the 32-bit arm code even there.

// Martin

On Thu, 27 Mar 2014, Vinay Nair wrote:

> I have used the patch to build opus 1.1. Although I have not tried the
> latest git master, will try that. Will that work for armv7, armv7s and
> arm64?
> 
> 
> On Wed, Mar 26, 2014 at 11:01 PM, Martin Storsjö <martin at martin.st> wrote:
>       On Wed, 26 Mar 2014, Jonathan Lennox wrote:
> 
>
>             On Mar 26, 2014, at 7:55 AM, Peter Robinson
>             <pbrobinson at gmail.com> wrote:
>
>                   On Wed, Mar 26, 2014 at 11:45 AM, Vinay
>                   <vinay.nair at novanet.net> wrote:
>                         Hi,
>
>                         I wanted to build opus along
>                         with PJSIP for iOS for the
>                         architecture arm64.
>                         I wanted to know if opus
>                         supports arm64?
> 
>
>                   The opus code builds fine on ARM64 on
>                   Linux at least, I've been
>                   building the Fedora aarch64 and I'm the
>                   maintainer of opus in Fedora
>                   and while I've not tested audio on arm64
>                   as yet at least from the
>                   build side of things it's fine.
> 
>
>             The ARM assembly won’t work on ARM64, however.
>
>             (On iOS it won’t work on armv7 either, if you’re
>             building opus-1.1; you’ll need the tip of git plus
>             the patches that have been circulated on this list.)
> 
> 
> Actually, some version of those have been applied now, so with the
> latest git master you shouldn't need any extra patches on top.
> 
> // Martin
> 
> 
> 
> 
> --
> Vinay Nair
> 
>