Hacker News: jamesfmilne

New comment by jamesfmilne in "FFmpeg 8.1"

jamesfmilne — Tue, 17 Mar 2026 18:09:17 +0000

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.

New comment by jamesfmilne in "FFmpeg 8.1"

jamesfmilne — Tue, 17 Mar 2026 18:07:32 +0000

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.

New comment by jamesfmilne in "Mountain home near Aspen, built for monks, sold to Palantir CEO for $120M"

jamesfmilne — Sun, 21 Dec 2025 19:54:29 +0000

Life imitates art

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

New comment by jamesfmilne in "1.5 TB of VRAM on Mac Studio – RDMA over Thunderbolt 5"

jamesfmilne — Fri, 19 Dec 2025 12:56:59 +0000

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

New comment by jamesfmilne in "macOS 26.2 enables fast AI clusters with RDMA over Thunderbolt"

jamesfmilne — Sat, 13 Dec 2025 20:22:15 +0000

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

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

New comment by jamesfmilne in "macOS 26.2 enables fast AI clusters with RDMA over Thunderbolt"

jamesfmilne — Sat, 13 Dec 2025 17:42:07 +0000

Anyone found any APIs related to this?

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

New comment by jamesfmilne in "Learning music with Strudel"

jamesfmilne — Tue, 02 Dec 2025 22:35:29 +0000

Bravo!

New comment by jamesfmilne in "Hyperoptic: IPv6 and Out-of-Order Packets"

jamesfmilne — Mon, 24 Nov 2025 11:08:38 +0000

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

New comment by jamesfmilne in "Hyperoptic: IPv6 and Out-of-Order Packets"

jamesfmilne — Mon, 24 Nov 2025 11:08:03 +0000

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.

New comment by jamesfmilne in "Microsoft to force install the Microsoft 365 Copilot app in October"

jamesfmilne — Mon, 15 Sep 2025 19:38:41 +0000

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...

New comment by jamesfmilne in "I designed my own fast game streaming video codec – PyroWave"

jamesfmilne — Mon, 28 Jul 2025 22:17:31 +0000

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.

New comment by jamesfmilne in "Bypassing Google's big anti-adblock update"

jamesfmilne — Sat, 12 Jul 2025 20:08:31 +0000

I've been paying for YouTube premium for probably 2 years now. Never had any inserted ads. Only the "this video is sponsored by" stuff, which you can just skip over.

I can't possibly go back to non-Premium YouTube, and if they mess around with Premium I'll probably be moving on from YouTube.

New comment by jamesfmilne in "Sony DTC-700 audio DAT player/recorder"

jamesfmilne — Mon, 30 Jun 2025 22:39:51 +0000

Yeah DAT was big in electronic music.

Everyone in DnB documentaries talks about going to Music House with DATs to get dubplates cut to play in the clubs later on that evening.

This would have been before CD-Rs were commonplace, early 90s.

https://www.reddit.com/r/DnB/s/hl1MiCvzqD

New comment by jamesfmilne in "Show HN: I built a hardware processor that runs Python"

jamesfmilne — Mon, 28 Apr 2025 14:29:19 +0000

Could be a candidate for Tiny Tapeout in the future.

https://tinytapeout.com

New comment by jamesfmilne in "The Myst Graph: A New Perspective on Myst"

jamesfmilne — Tue, 01 Apr 2025 19:36:14 +0000

And unfortunately they have had to lay off half their studio:

https://www.gamesindustry.biz/half-of-myst-developer-cyan-wo...

The news from a lot of games studios has been pretty brutal over the last couple of years.

New comment by jamesfmilne in "Hyperspace"

jamesfmilne — Tue, 25 Feb 2025 16:55:30 +0000

Would be nice if git could make use of this on macOS.

Each worktree I usually work on is several gigs of (mostly) identical files.

Unfortunately the source files are often deep in a compressed git pack file, so you can't de-duplicate that.

(Of course, the bigger problem is the build artefacts on each branch, which are like 12G per debug/release per product, but they often diverge for boring reasons.)

New comment by jamesfmilne in "'The tyranny of apps': those without smartphones are unfairly penalised"

jamesfmilne — Sat, 22 Feb 2025 16:21:03 +0000

As a North London resident, the parking app situation is just as farcical for me.

There are at least three different apps for parking around me: RingGo, PayByPhone and JustPark.

I went to East London recently to visit the Velodrome, and discovered yet another one: Evology.

It's always great fun, standing around in the car park trying to wrangle your cards whilst creating yet another account to pay for 30 minutes of parking.

Then, of course, there's the 50/50 chance that my iPhone has decided to offload the parking app you need because you haven't used it in the last month or so.

And occasionally RingGo will decide to log me out, and when I go to log back in for some reason the last password I have in my password manager doesn't work, so now I also have to reset my password.

Agreed, paying for parking has turned into a total farce.

New comment by jamesfmilne in "Saying goodbye to FFmpegKit"

jamesfmilne — Tue, 18 Feb 2025 17:18:38 +0000

I was under the impression you can't ship FFMPEG in an app on iOS/tvOS/iPadOS anyway given FFMPEG is licensed as LGPL.

New comment by jamesfmilne in "Ask HN: Is onboard audio still good enough compared to dedicated Sound Cards?"

jamesfmilne — Mon, 03 Feb 2025 07:29:34 +0000

If you are experiencing digital noise in the output, like buzzing or clicking that correlates either activity on your computer, try installing a ground loop isolator in between your computer and speakers.

This is essentially a mini transformer that physically isolates speaker/amp from the computer to isolate any power related noise.

They are dead cheap on Amazon these days.

Other than that, a USB DAC might help. You don't need an expensive one, which are mainly expensive due to inputs & microphone preamps. The main benefit will be a reduced noise floor/less background hiss, although that can also come from the amp driving your speakers.

New comment by jamesfmilne in "David Lynch has died"

jamesfmilne — Thu, 16 Jan 2025 19:12:01 +0000

Also on The Grauniad

https://www.theguardian.com/film/2025/jan/16/david-lynch-twi...