I've had great results using JPEG-XS to transport video for colour grading in feature film & TV post production. At 3:1 or 4:1 compression ratio is effectively lossless.

It is patent-encumbered though, you have to pay license fees to deploy it.

Yeah, we've been deploying JPEG-XS for high bitrate streaming for a while.

A lot of our customers are moving their grading systems into data centres and streaming the images over IP back to their grading suites.

I've got it down to less than 1 frame for encode-transport-decode, but you've still got to copy the image to an SDI card and wait for that to clock out.

Life imitates art

The Mountainhead https://www.imdb.com/title/tt35396529/

This movie isn’t getting nearly enough attention

macOS ships with drivers for Mellanox ConnectX cards, but I have no idea if they will show up in `ibv_devices` or `ibv_devinfo`.

Anyone found any APIs related to this?

I'd have some other uses for RDMA between Macs.

I found some useful clues here. Looks like it uses the regular InfiniBand RDMA APIs.

https://github.com/Anemll/mlx-rdma/commit/a901dbd3f9eeefc628...

Bravo!

Same, haven't had any problems with IPv6 via Hyperoptic. He might just be unlucky having some defective equipment upstream.

I believe it heavily depends on what kind of infrastructure you are using with them.

If you are on their old legacy network (aka, you have a RJ45 Ethernet jack into your house) you will likely going to have more issues than if you are on their (X)GPON network.

I had IPv6 working for a while on mine, but realize that for some insane reason that there was basically only one v6 prefix across my entire distribution switch (basically the switch shared with a few 100 other properties). so anytime that i was going to get a v6 i was effectively stealing it from another flat/house.

unfortunately trying to get in touch with anyone from Hyper-optic is really tricky, so I just gave up

they have since upgraded some of the infrastructure in the path, mostly moving away from Huawei to Nokia, but I am not entirely sure that has improved the situation.

I'm on Hyperoptic and use IPv6 regularly. Pretty sure it was enabled by default.

I haven't had the same problems this guy has, although I do believe his issues are real.

If you find yourself needing to install Windows 11 for some reason (I'm doing my best to avoid it), you can try this to create a stripped-down Windows 11 installer with most of the crap removed:

https://ntdotdev.wordpress.com/2025/09/06/tiny11-builder-sep...

JPEG-XS is great for low latency, but it uses more bandwidth. We're using it for low-latency image streaming for film/TV post production:

https://www.filmlight.ltd.uk/store/press_releases/filmlight-...

We currently use the IntoPIX CUDA encoder/decoder implementation, and SRT for the low-level transport.

You can definitely achieve end-to-end latencies <16ms over decent networks.

We have customers deploying their machines in data centres and using them in their post-production facilities in the centre of town, usually over a 10GbE link. But I've had others using 1GbE links between countries, running at higher compression ratios.