[FFmpeg-devel] ebur128 bounty

[Guillaume Khayat]

Hi Niklas,

Vey nice. I’m seeing 22% improvement already.

I’ll reach out privately to get us started on the paperwork.

Best,

SPECTRE

Guillaume KHAYAT / Technical Director

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> On 12 Jun 2025, at 22:18, Niklas Haas <ffmpeg at haasn.xyz> wrote:
> 
> On Thu, 12 Jun 2025 17:09:35 +0200 Guillaume Khayat <gkhayat at spectre-music.com> wrote:
>> Hi Niklas,
>> 
>> Awesome!
>> 
>>> To be clear, you are fine with me taking your existing SIMD code as a starting point?
>> Yes I am
>> 
>>> Out of curiousity, did you try the "loudnorm" filter as well?
>> Yes, it’s significantly slower.
>> Last i checked it was 30x realtime. I measured ebur128 at 200x with peak=true, and 1000x with peak=none
> 
> I sent some preliminary fixes that improve the performance somewhat on my end.
> 
> Still working on an FMA3/AVX2 backend, I will probably finish it by tomorrow.
> 
>> 
>> Guillaume
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