AV1 and ARM
summary
AV1 decoding already runs in software almost everywhere using dav1d, with hand‑written assembly covering >50% of hot paths and frame/tile threading hitting >30 fps single‑thread and >100 fps for 4K on many cores; hardware decoders push throughput into the hundreds. Encoding remains slow: libaom gains ~2x with asm, rav1e shows 40–70% asm speedups and good parallelism, while SVT‑AV1 lacks ARM SIMD paths. Missing pieces: more ARM encoder optimizations and wider hardware decoder availability.
AI-written summary · about
chapters (12)
- 0:00Intro
- 0:48Who are we
- 2:06What is AV1
- 3:23What is ARM
- 4:57ARM chipset
- 5:57Hardware producers
- 6:49State of decoding
- 8:15David
- 9:24David C Version
- 10:17David Speed Up
- 15:28Speed
- 19:12Summary
