Membrane on X: "Membrane development highlight: MP4 support in Membrane is in its final stage of development! 👉it will make possible to record WebRTC sessions to MP4 with H264+AAC. 👉WebM support coming
VP9 encoding/decoding performance vs. HEVC/H.264 | Ronald S. Bultje
WebM vs MP4 - A Detailed Comparison
Preset with VP9 in MP4 container · Issue #3478 · HandBrake/HandBrake · GitHub