Dummond D. Slow (mental.delete@this.protozoa.us) on November 18, 2020 9:21 am wrote:
> Maynard Handley (name99.delete@this.name99.org) on November 18, 2020 9:13 am wrote:
> >
> > x264 in SPEC is not there to help you decide which PC to buy for ripping DVD content!
> > It is there as an exemplar of certain styles of code: various generic compression techniques
> > (so lots of bit by bit manipulation) and various image analysis techniques (so searches
> > over images and image comparisons at various frequency granularities).
> >
>
> You didn't read it? If x264 is example of a kind of code, it is an example of code
> heavily optimised with multimedia (integer) SIMD. It's a greeat example or maybe
> too great, other codebases like ffmpeg or x265 will be a bit less optimized.
>
> If you want to explore such code, run it with assembly. It has assembly for ARM too, and not that
> little of it. Without SIMD, it is the opposite of example of multimedia compression code.
>
> "Various generic compression techniques", my butt. This is an area I
> know, so please don't talk armchair nonsense like you did just now.

Armchair nonsense? OK then. I guess you don't know my employment history...