# The magic incantation for high-quality VOD from a raw YUV source ffmpeg -i input.yuv -c:v libvpx-vp9 -b:v 2M -crf 28 -row-mt 1 -tile-columns 2 -frame-parallel 1 -speed 2 -lag-in-frames 25 -auto-alt-ref 1 -arnr-maxframes 7 output.webm Next week, we’re moving from using libvpx to hacking libvpx. We’ll patch the source code to add a custom rate control log that exports per-frame QP values to Prometheus. Yes, live observability for your encoder. Community Challenge Your turn: Encode a 10-second clip of your desktop screen capture using the Low-latency preset above. Then, run vpxdec with -v to dump the frame timings. Post your average encode time per frame in the comments below.
— The Video Dev Team
If you missed S03E03 (Adaptive Bitrate Ladders with FFmpeg), catch up here . The RSS feed has been updated with the new episode. upload s03e04 libvpx
Welcome back to the series. If you’ve been following along with Season 3, you know we’ve been building a foundation for modern, royalty-free video delivery. Today, we’re hitting a major milestone: # The magic incantation for high-quality VOD from
The fastest (real-time) encode wins a shoutout in S03E06. Stay tuned, and keep encoding. Community Challenge Your turn: Encode a 10-second clip
Posted on: April 14, 2026 Category: Codec Engineering / Video Encoding