Wikipedia/Wikimedia Commons video upload. VP9 + Vorbis + WebM is the required format for Wikimedia. CRF 33 for reasonable file sizes on the free encyclopedia, Vorbis because Wikimedia standardized on it before Opus was widespread.
| Video Codec | VP9 |
| CRF | 33 |
| Resolution | 1080p |
| Audio | Vorbis |
| Container | WebM |
ffmpeg -i input.mp4 -c:v libvpx-vp9 -crf 33 -b:v 0 -c:a libvorbis -q:a 5 output.webmWikimedia Commons still requires Vorbis audio (not Opus) in WebM files as of 2025. This is because their MediaWiki player integration was built around Vorbis, and migrating millions of existing files is a massive undertaking.
A new FFmpeg encoding puzzle every day. Six tries, in the browser or from your terminal.