[FFmpeg-devel] SIMD Motion Compensation Optimizations

[AV Muppet]

On Monday, November 11th, 2024 at 12:09 PM, compn <ff at hawaiiantel.net> wrote:

> are you trying to say that ffmpeg should take down the tweet?

I only provided my observations (with the caveat that I'm still potentially
lacking context).  What anyone might want to do about it isn't for me to say.

If you'd like to check for yourself, try running meson with/without the
'-Dbuildtype=debug' option.  Note that you'll also need to pass meson the
'-Dtrim_dsp=false' option, in order to be able to run the test.

Once you've built the tree, which only takes about 30 seconds, you can run
the exact commandline shown in the image and see how the relative
performance ratios look on your machine.  If your CPU lacks AVX-512, you
can just compare the performance of C vs SSSE3 and AVX2, which should be
more than convincing enough.


> well you can come on #ffmpeg-devel irc too, if you dont like twitter.

Thank you.  I will probably do that, at some point.