[opus] opus Digest, Vol 76, Issue 11

Viswanath Puttagunta viswanath.puttagunta at linaro.org
Mon May 11 10:40:58 PDT 2015


Timothy / Jean-Marc,

In travel, will verify and update full results later on this week.

Regards,
Vish

On 11 May 2015 at 10:34, Phil Wang <Phil.Wang at arm.com> wrote:

> Hi Jean-Marc,
>
> Thanks for pointing us the way.
> Yes it is a overflowing problem. I moved all scaling code in the front of
> any other operations, and test_unit_mdct passes for all sizes.
> I will update Ne10 right after Vish double checks it on hardware. He will
> repost patches with more verification later this week.
>
> Regards,
> Phil Wang
>
> Well, I see three questions that need to be answered at this point
> 1) At what value the overflow starts happening
> 2) What's the minimum requirement to avoid overflows in the encoder
> 3) What is causing the overflow to happen much earlier with Neon than
> the C code
>
> Once these three are answered, the solution should be clear.
>
>         Jean-Marc
>
>
>
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