I was preparing for the codec discussion of my preconference sessions next week at Streaming Media East and visited www.caniuse.com to report codec availability. While I expected H.264 (96.96%) and VP9 (80.78%) to easily win, and they did, I was surprised to find AV1 availability at 32.46%, well ahead of HEVC at 16.71%. Digging into the numbers, I noticed that …

I’m preparing for my per-title presentation at Streaming Media East next Tuesday (presentation description below) and found some anomalous results for lower-resolution files produced by YouTube. I’m including YouTube in the analysis because I’ve always respected their work and for perspective vis a vis other per-title technologies that I’ll analyze (including Elemental MediaConvert QVBR, Capella Systems SABL, Epic Labs Lightflow, …

A few weeks ago, I wrote about the VMAF Phone Model which measures VMAF score for viewers watching on a mobile phone. Since then, I gave a presentation at NAB on VMAF and ran some calculations comparing the phone and default models. I share those below. First, have a quick look at the three VMAF models shown on the slide …