>> Have you test your optimizations in the other prores encoder (prores
> kostya) (who i think have more features (interlaced encoding and 444
> versions)) ?

No, we haven’t done this yet. The goal for us was performance without loosing 
accuracy. We choose Anatoliy simply because it was faster.
It doesn’t look like the intrinsics is acceptable in ffmpeg. If so, we will use 
this for our needs and not continue with pursuing to clean up the code and 
submit this upstream. I have shared the WIP of the patch in this thread, so 
anyone might feel free to port the code to asm and submit it.

Currently, we are also developing a version of the same encoder for Nvidia TX1 
with Cuda/Neon SIMD for supporting multiple high quality streams in real time 
using ffmpeg. I guess there is little interest in merging this as well, but 
please let us know otherwise.

In all cases, we will of course respect the ffmpeg license and share the source 
code with our customers.

Best,

Håvard Espeland
CTO
LABO Mixed Realities AS


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