[FFmpeg-devel] [PATCH 1/6] opus: convert encoder and decoder to lavu/tx

[Hendrik Leppkes]

On Sat, Sep 24, 2022 at 8:43 PM Martin Storsjö <martin at martin.st> wrote:
>
> On Sat, 24 Sep 2022, Lynne wrote:
>
> > This commit changes both the encoder and decoder to use the new lavu/tx code,
> > which has faster C transforms and more assembly optimizations.
>
> What's the case of e.g. 32 bit arm - that does have a bunch of fft and
> mdct assembly, but is that something that ends up used by opus today, or
> does the mdct15 stuff use separate codepaths that aren't optimized there
> today yet?
>

mdct15 only has some x86 assembly, nothing for ARM.
Only the normal (power of 2) fft/mdct has some ARM 32-bit assembly.

- Hendrik