If tensions are ever going to flare on a panel, you can bet it will happen during a discussion zooming in on video codec patent pools. This Streaming Media Connect session, live streamed this week, saw the noose tighten around the neck of AOM, as Sisvel again sought to clarify the position that AV1 is not royalty-free. Meanwhile, the content-based licensing model is becoming more widely accepted (but still criticized), as seen by the recent arrival of the Avanci Video multi-codec patent pool, which houses licenses for HEVC, AV1, VP9, and VVC, as well as the MPEG-DASH suite of standards. Fresh with the knowledge that a Broadcom HEVC patent has this week been ruled invalid by a German court in…