A fast and safe AV1 video encoder designed as a performant alternative to the reference encoder.
rav1e is an open-source AV1 video encoder written in Rust. It is designed to cover all AV1 encoding use cases, with a current focus on scenarios where the reference encoder (libaom) is too slow, offering a balance of speed and safety.
Developers and engineers working with video encoding who need a faster alternative to libaom for AV1 compression, particularly those prioritizing performance and memory safety in their encoding pipelines.
Developers choose rav1e because it is optimized to be the fastest and safest AV1 encoder, leveraging Rust's memory safety while providing extensive optimization through assembly routines. It offers 11 configurable speed settings, from exhaustive to near real-time encoding, making it versatile for different performance requirements.
The fastest and safest AV1 encoder.
Open-Awesome is built by the community, for the community. Submit a project, suggest an awesome list, or help improve the catalog on GitHub.
Offers 11 configurable speed settings from exhaustive to near real-time, with assembly optimizations for x86_64 and aarch64, making it significantly faster than libaom for many use cases.
Written in Rust, it leverages memory safety to reduce crashes and vulnerabilities, providing a more reliable encoding pipeline compared to C-based alternatives.
Supports high color depths (8-, 10-, 12-bit), multiple chroma samplings (4:2:0, 4:2:2, 4:4:4), and various encoding modes like constant quantizer and target bitrate, as detailed in the Features section.
Provides clear build instructions for Linux, Windows, and macOS, including target-specific optimizations and a C-API for integration, enhancing usability across different systems.
Requires NASM for assembly optimizations on x86_64, with specific version requirements that can complicate installation, especially on Windows where manual setup is needed.
Only accepts Y4M format for input videos, forcing users to convert from common formats like MP4 or AVI, which adds an extra step and potential quality loss.
Experimental features are marked as unstable and subject to change, as noted in the README, which can break integrations and require frequent updates in production environments.
Focused on speed, it may not match libaom's reference quality in all scenarios, particularly at lower bitrates or for complex video content, as hinted in the overview.
rav1e is an open-source alternative to the following products: