[opus] Opus's x86 Optimization

Viswanath Puttagunta viswanath.puttagunta at linaro.org
Wed Mar 25 12:02:47 PDT 2015

Hi Suresh,

Thanks for making me aware of https://wiki.xiph.org/OPUS_TODO

You can find the patches that I (includes Jonathan's patch) queued up
to be picked up by opus at
Branch: rfcv1_final_armv8

I am currently working mostly on ARM Neon, so can't comment much on x86.


On 25 March 2015 at 13:57, Kannaian, Suresh <Suresh.Kannaian at inin.com> wrote:
> Hello guys
> I have profiled opus code(cpu sampling) and identified functions that are
> expensive for our use case (mostly x86 silk mode).
> Those functions could be optimized for x86 using intrinsics. Looking at
> source tree and  there is already optimization work going on ,especially
> Cisco folks and Jonathan have already contributed for x86. We would like to
> have some optimization  included in future opus releases but certainly we
> don’t want to duplicate other’s effort.
> Is there complete list of functions that are going thru optimization process
> for future releases?
> [I did look at https://wiki.xiph.org/OPUS_TODO but couldn’t find info
> related to x86 optimization ]
> Thanks
> Sureshk
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