j40

j40 copied to clipboard

dj40.c line 5: #include "j40.h" #include "j40.h"

maddin200

Might be helpful.

maddin200

* [x] I agree to publish my contributions to the public domain and in any public-domain equivalent license described in [`LICENSE.txt`](https://github.com/lifthrasiir/j40/blob/main/LICENSE.txt). --- Change `height` to `pixels.height`

qbnu

`Error: Decoding failed (rnge) during j40_next_frame`

1

I built `cjxl` from the official https://github.com/libjxl/libjxl repo. I then made a `bricks-color.jxl` file (attached, with a fake `.png` file extension to satisfy the GitHub upload UI). ``` $ build/tools/cjxl...

nigeltao

WebAssembly (WASM) version

1

Now that Chromium has dropped support for JPEG XL, the WebAssembly decoder is needed. Could you please provide a WASM version of J40? Thanks!

niutech

Performance on .fjxl

2

Test image: https://stsci-opo.org/STScI-01GA76Q01D09HFEV174SVMQDMV.png ``` $ time ./dj40 w.fjxl 14560x8418 frame read and discarded. real 0m16,854s user 0m16,325s sys 0m0,549s ``` 8 MPx/s, PNG decoding speed on the same CPU is...

alantudyk

Rust version

5

As I noted in the [orange site](https://news.ycombinator.com/item?id=32885509), it is a long-term goal to produce a parallel Rust version of J40. There are many unanswered questions before starting this process, however....

lifthrasiir

Color management in JPEG XL is a complicated story. Ideally it's the best possible design: every JPEG XL codestream has a defined color profile (either ICC profile or abbreviated color...

lifthrasiir

This is currently an empty macro (and will remain so by default), but probably should be something else if it is to be used as, for example, a dynamically linked...

lifthrasiir

question: is progressive encoding supported?

1

Thanks for this project. Reading the README it is not clear to me whether progressive JPEG images are supported. Could you please clarify that? (I'd like to try this lib...

palmerabollo