Mastodawn

Jann Horn Jun 25

Thorsten Leemhuis (acct. 2/4)

PNG is back!

https://www.programmax.net/articles/png-is-back/ (by Chris Blume)

A new PNG spec was just released! […]

[…] After 20 years of stagnation, PNG is back with renewed vigor!

What's new?

* Proper HDR support (future‐proof, too!)

* Finally recognizes APNGs (animations!)

* Officially supports Exif data

* General tidying up—fixing errata, clarifications, etc.

#png

Show thread

Alan Langford 🇨🇦🧤🧊摏 Jun 25

@knurd42 Great. Blinky PNGs, just what I always wanted.

>APNG support

I kinda thought we were over this considering animated WebPs and AVIF exist, was there really any interest in bringing back Animated PNGs?

@knurd42 that's super cool.. When can we expect universal integration? Some time after the climate collapse?

Exactly my thought!

@mina @naught101 @knurd42

"Universal" is a big ask :)
But it is already live in Chrome, Safari, Firefox, iOS/macOS, Photoshop, ...
A bunch of software.

Also in broadcast. So overlays in sports, news, etc.

Show thread

waso nytpu Jun 25

@knurd42 Unfortunately literally everyone (including libpng) only implements a fraction of the original PNG spec, so I'm not really hopeful for any of these that weren't already de facto supported like Exif. I doubt extended color spaces would be supported very well in anything but pro photo software where it's already supported, for instance

Show thread

ProgramMax Jun 25

@nytpu @knurd42

Some of it has already landed in libpng. Other parts are currently landing. :)

Show thread

sodiboo

Jun 25

@nytpu @knurd42 Even if capabilities are not universally implemented, it's still valuable for the way they are implemented to be standardized and not rely on de facto hacks. I think this is very exciting indeed.

Show thread

Luna D Dragon Jun 25

@knurd42 WOWW this is cool as hell thanks for posting about it would have missed it other wise <3

Show thread

Andy Jun 25

@knurd42 I think we hugged the site to death :(

Show thread

vandorb12 Jun 25

@knurd42 I thought all of these features and issue mitigations were addressed in the JPEGXL standard?

Show thread

Peter Fisher Jun 25

@knurd42 will i have to buy an app from the windows store just to look at these images? (like heic).

Show thread

Lunaphied Jun 25

@knurd42 finallyyyyyy been waiting for an HDR spec for so long

Show thread

John Ulrik Jun 25

@knurd42 Can’t wait for 2045 when all tools will finally have implemented the new version! 🤗

@knurd42 can we finally get proper arithmetic coding support?
I know it has been in the spec, but maybe this time.
Also 32 bit png anytime?

Show thread

Fish Id Wardrobe Jun 25

@knurd42 wait, it didn't support EXIF before?

Show thread

Basil Jun 25

@knurd42 APNG is pronounced Jiff.

Show thread

txt.file Jun 26

@knurd42 will it be as successful as YAML1.2?

Show thread

Rackuur

Jun 26

@knurd42 oh no, they changed something. stop changing existing standards

Show thread

CTHULHU KAWAII Jun 26

@knurd42 Ok but APNG with sound when 🤡

Show thread

Kirinn B.Jun 26

@knurd42 I'm very interested in seeing an upgraded #PNG format! Since the official PNG spec seemed stagnant, I was jotting down ideas on an upgraded PNG myself ( https://mooncore.eu/bunny/txt/pngx-eval.htm ), but I guess if the big guys like @ProgramMax are on it, I can wait and see what they come up with. :D

Although if they go with zstd for the new compression, I'll be sad.

Evaluation of PNGX ideas

Evaluation of easy improvements for the PNG image format

Show thread

HyperSoop

Jun 30

@mooncorebunny @knurd42 @ProgramMax fyi it's out of scope for them to come up with any breaking changes and that'd include any change to the compression algorithm in use, so zstd is out of the question for now

Show thread

Kirinn B.Jun 30

@soop @knurd42 @ProgramMax But the linked announcement does say at the end that they're working on better compression; I see proposals around "PNG2" in the git repo too...

Show thread