Invalid PNG file generation

[newpavlov]

Compressing 1.pnm in this archive using png crate results in an invalid PNG file. EyeOfGnome reports "bad adaptive filter value". Compression code can be found in the same archive. Changing just one pixel (uncomment line 16 in main.rs) results in a correct file being generated.

[aschampion]

I ran into a similar issue and created a reproduction repo here before finding this issue. Debug hits the same assertion as image-rs/deflate-rs#18. Would be nice to (in order of declining preference) switch to a fuzzed encoder (parallel to the decoder discussion in #151), fix the bug, and/or make the assertion in release mode since I only lucked into noticing the corrupted data in a production tool.

[newpavlov]

This issue is still not fixed since png uses deflate v0.7 and the bug was fixed only in v0.8.

[oyvindln]

Dependency is updated in the git repo, but the versions on crates.io still depend on 0.7.

[Shnatsel]

The fix has been in master for a while. Can we get a new point release on crates.io with the fix?

[HeroicKatora]

It's going on the schedule for this weekend.

[HeroicKatora]

png 0.16.0 has been published, and is going to be updated into image.