Sisvel Update

I’ve been asked for an update on the Sisvel AV1/VP9 pool situation; here’s what we know. Before beginning, as I wrote about here, I am working as a consultant with Sisvel during the launch. To recap, Sisvel announced their pool late March: Before signing on as a consultant, I wrote two articles for Streaming Media…

Free Video: Scaling and Letterboxing in FFmpeg

Embedded below is a free lesson from my course, Produce Videos with FFmpeg: The Beginner’s Course (http://bit.ly/learn_ffmpeg). The previous lesson in the course describes when you can use the -s command to set resolution; this lesson details your options when you can’t. This typically occurs when the display aspect ratio of your output is different from…

Sisvel Announces Patent Pools for VP9 and AV1

Luxembourg-based Sisvel International SA announced patent pools for VP9 and AV1 yesterday targeted at consumer display devices (smartphones, TVs, etc) and consumer non-display devices (set-top boxes and OTT devices). Here’s what we know from this article on Streaming Media) and this Q&A. The standard rate for VP9 is € 0.24 for display devices and €…

Unified Poops in Velos’ Punchbowl

Sorry for the visual but couldn’t resist. Just got the following email from Unified Patents. All the normal caveats apply; I haven’t reviewed the filings (and won’t) and Unified may not succeed though they’ve had some recent successes. Why the hate on Velos? In contrast to the transparency with which MPEG LA and HEVC Advanced…

Installing and Using Netflix VMAF-Master

I frequently use the VMAF quality metric to analyze encoding parameters and compare codecs. In my experience, VMAF scores tend to match my own subjective quality observations and the fact that Netflix uses it gives the metric great credibility. Originally, there was only one VMAF version, but Netflix has added both a 4K model and…