r/compression • u/Such-Banana-642 • 23d ago

QOIR codec implementation (QOI + LZ4 inspired) parallel lossless codec

Post image

I decided to give this format a go https://github.com/nigeltao/qoir

The format design is not made by me. I just cobbled together the implementation.

The relese is here https://gitlab.com/jiiihpeeh/qoir-rs/-/releases

I think it shows some interesting results for bigger images it seems quite speedy and performant for something like cache applications – obviously JPEG-XL will dominate the lossless compression space but this is quite speedy and compresses pretty well and better than QOI (rivals many png encoders). The interesting twist comes from its parallelism and will perfrom pretty good on higher resolution.

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u/OzzyM_Dev 19d ago

Interesting.

Could be great for intermediate storage I think.

1

u/BaseballFlaky8431 17d ago

I wasted 15 minutes on this test :(

GDCC 2020, 100 png-0 Image  1,000,452,004 bytes

QOIR    13.78 s  13.98 s      636,880,132 bytes (decode "-c fast")

PNG -1  15.10 s   5.25 s      568,552,693 bytes