libspng VS libpng

It also works well on high-res, high-quality images with lots of single-color background and/or smooth gradients. But give it grainy, noisy, smaller-format images and it completely breaks down. We ended up sticking with PNG, which btw. Has fast open source implementations too [1][2]. [1] https://libspng.org/. - Source: Hacker News / over 1 year ago

That's why it's healthy to have competitors written in C. Like the library libspng, which has a simpler API than libpng. Or like samurai, a C reimplementation of the ninja build tool written in C++, or crun, a C implementation of a container launcher in contrast to the original written in Go. Source: over 1 year ago

It makes sense to treat it as an error but the ISO standard is too vague on this and the libpng developers never "fixed" this[1], it issues a warning but otherwise just masks off the high bits. Firefox has a workaround[2][3], Chrome doesn't. FWIW I do the same in my library[4], handling it as an error is problematic because it would mean the chunk gets discarded and then you can't even retrieve the values. [1]... - Source: Hacker News / over 2 years ago

Is this by the same people or is it a competitor to the PNG development group (http://libpng.org/pub/png/)? The latter's website still heavily says that PNG is a still image only format, and promotes MNG as the animation alternative. Of course, that's not how web browsers have played it out, and it also appears to me that the libpng source code still lacks "APNG" support. This makes me think it's a competing... - Source: Hacker News / 9 months ago