Free — Companion Libvpx

Developed by Google and released in 2010, libvpx is the reference implementation for the VP8 and VP9 video codecs. It was born out of a specific strategic need: after acquiring On2 Technologies, Google needed a high-performance, royalty-free codec to power WebRTC and YouTube. But unlike proprietary libraries that guard their internals, libvpx was open-sourced, inviting integration into everything from Firefox to FFmpeg.

serves as the core engine for high-quality video compression within the WebM project. It provides the necessary algorithms for:

# Encode raw YUV file to VP9 IVF (raw container) ./vpxenc --codec=vp9 --width=1920 --height=1080 --input-file=input.yuv -o output.ivf

Note: This installs libvpx.so (or .dylib / .dll ) and headers to /usr/local by default.