xiph/rav1e
Some data may be outdated — see provenance labels.
The fastest and safest AV1 encoder. observed · 2026-10-03
Health v2 · maintenance only
78/100
- Activity 97
- Release rhythm 40
- Longevity 100
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-10-21. Adoption (stars, forks) is never an input.
- gap_med: 20
- age_days: 3313
- days_rel: 491
- days_push: 19
- n_releases_24m: 2
Adoption not part of the score
4155 stars · 293 forks observed · 2026-10-03
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded
rav1e is an open-source AV1 video encoder written in Rust with assembly optimizations, developed by Xiph.Org. It offers a CLI binary and a C API, supporting intra/inter frames, 8-12 bit depth, multiple chroma samplings, and 11 speed presets from exhaustive to near real-time.
Use cases
- encode video files to AV1 format
- compress video with better quality than libaom at higher speed
- transcode video archives to a royalty-free modern codec
- encode AV1 still pictures
- integrate an AV1 encoder into a C/C++ application via C API
- run near real-time AV1 encoding on multi-core machines
When to choose
- you need AV1 encoding and libaom is too slow
- you want a memory-safe Rust encoder with a C API
- you need flexible rate control (constant quantizer or single/multi-pass bitrate)
- you require 10/12-bit or 4:2:2/4:4:4 chroma support
When to avoid
- you need the absolute fastest AV1 encoding regardless of quality (SVT-AV1 may be faster)
- you need a decoder rather than an encoder (use dav1d)
- you need hardware-accelerated encoding
- you need a stable 1.0 API - the C API is still evolving
Facets
library · maturity active
video-processing cli sdk media developer-tools windows cross-platform rust cpp av1 video-encoder codec rust xiph video-compression video linux macos
1 source
- readme: https://github.com/xiph/rav1e · fetched 2026-10-03 · 4f02039e2692
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| xiph/rav1e | main | 78 |
For agents
Data as of 2026-10-19T08:05:51.212177+00:00 · Report a problem