Improving performance of rav1d video decoder

Oh this stuff is what’s prompting the ffmpeg Twitter account to make a stand against Rust https://x.com/ffmpeg/status/1924137645988356437?s=46

Reading the ffmpeg twitter account is enough to turn me off using ffmpeg. It's a shame there's no real alternative -- the devs seem very toxic.

I mean sure, max performance is great if you control every part of your pipeline, but if you're accepting untrusted data from users-at-large ffmpeg has at least a half-dozen remotely exploitable CVEs a year. Better make sure your sandbox is tight.

https://ffmpeg.org/security.html

I feel like there's a middle ground where everyone works towards a secure and fast solution, rather than whatever position they've staked out here.

I've worked with ffmpeg for literally a decade and I've never found them particularly toxic.

What I have found that they (as many others who do great work) have very little tolerance of random junior language fanboys criticizing their decades of work without even understanding what they're talking about and constantly throwing out silly rewrite ideas.