Dav2d | Hacker News

A Hacker News discussion focused on AV2 and the Dav2d decoder, with AV2 said to deliver about 25% better compression than AV1.

The tradeoff is higher decoding cost: commenters said AV2 may require roughly five times more decoding work, which could hurt software playback performance.

The thread also debated whether high-performance codec code should be written in C/assembly or Rust, especially for SIMD-heavy decoder paths.

Broader concerns included codec naming, patent risk, and what AV2 means for real-world device support and implementation choices.