[opus] [RFC PATCH v1 0/8] Ne10 fft fixed and previous

[Timothy B. Terriberry]

Viswanath Puttagunta wrote:
> This patch series is follow up on work I posted on [1].
> In addition to what was posted on [1], this patch series mainly
> integrates Fixed point FFT implementations in NE10 library into opus.
> You can view my opus wip code at [2].

Thanks, and I apologize for being slow here.

>     - This was surprising to me because test_unit_dft passes for all
>       nfft including 60, 120, 240, 480. May be there are some data
>       corner cases that need further investigation.

Yes, that seems concerning. I'd like to at least understand the cause of 
the failures. "Audio is clearly audible" is not a very strong test for 
encoder quality regressions, but in the worst case we could just disable 
NE10 for mdct_forward.