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Jan Ozer

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I help companies train new technical hires in streaming media-related positions; I also help companies optimize their codec selections and encoding stacks and evaluate new encoders and codecs. I am a contributing editor to Streaming Media Magazine, writing about codecs and encoding tools. I have written multiple authoritative books on video encoding, including Video Encoding by the Numbers: Eliminate the Guesswork from your Streaming Video (https://amzn.to/3kV6R1j) and Learn to Produce Video with FFmpeg: In Thirty Minutes or Less (https://amzn.to/3ZJih7e). I have multiple courses relating to streaming media production, all available at https://bit.ly/slc_courses. I currently work as www.netint.com as a Senior Director in Marketing.

Upcoming Sessions at Streaming Media West

Here are all the sessions that I’ll be producing or participating in at Streaming Media West in two weeks. I hope to see you there. Monday, November 16, 2015 W1: Encoding 2015: Codecs and Packaging for PCs, Mobile and OTT/STB/Smart TVs 9:00 a.m. – 12:00 p.m. As video resolutions increase and target playback platforms multiply, video producers must leave their …

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Think Flash is Dead? Think Again

So here I am preparing for an upcoming session at Streaming Media West entitled Encoding 2015: Codecs and Packaging for PCs, Mobile and OTT/STB/Smart TVs, and I wanted to determine the current market share of MSE and EME capable browsers. I started with a quick trip over to NetMarketshare where I displayed the Desktop Browser Version Market Share and copied …

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Delivering a Useful Webinar Without Giving Away the Farm

Another webinar, another few lessons. Probably most important is the hard lesson facing many content developers who want to present a webinar for lead generation, but don’t want to give away their critical content during the webinar. It’s a pretty tough balance sometimes, how to give away enough information to make the webinar worthwhile, but not enough so that prospects …

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Should Your Next Encoder be a Packager?

Just a quick riff on encoding versus packaging. The concept of encoding involves converting a mezzanine file into distributable output like MP4 files, or ABR formats like HLS or DASH. The concept of packaging is taking previously encoded MP4 files and converting those to distributable ABR output format like HLS or DASH.  The heavy lifting, of course, is converting the …

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DASH or HLS? Which is the Best Format Today?

The survey results are in: So, out of 87 responses, over 50% chose DASH, while over 30% choose HLS. The balance chose to explain why, and there were some very useful comments. “Not sure why I wouldn’t cover both options.” “DASH also doesn’t work on OTT boxes like AppleTV and Roku, where HLS does. DASH does have support for VP9 …

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BBC Moves to HTML5 and MPEG-DASH

I am a bit behind the times on this one, but on September 29th, 2015, the BBC launched an HTML5-based player based upon the Media Source Extensions and MPEG-DASH. You can read about their implementation in a blog post, here. The new implementation is very platform-specific, and BBC announced that they were testing on the following platforms. Firefox 41 Opera …

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Current Status of HEVC Royalties

This post will quickly summarize the current status of HEVC royalties. There are two existing patent pools. The first was assembled by MPEG LA and calls for royalties of $0.20/unit on encoders and decoders, after a 100,000 de minimus exception, with a US $25 million annual cap, and no royalty on encoded content. Here’s a screen grab from a presentation on the …

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SSIMWave SQM Review: Frustrating Video Quality Measurement

I'm big into quality control and objective video measurement, and the latest tool that I've tested, SSIMWaves SQM (link to tool here) , offers a couple of unique elements, including a scoring system that attempts to correspond to actual human subject

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Choosing a Capture Card for Multicamera Live Production

You’ve decided to create your own station for mixing live events with a software program like Telestream Wirecast, Livestream Studio, StudioCoast vMix, CombiTech VidBlaster or Splitmedia Labs XSplit. You’ve selected the mixing software yo

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Why I like VQM better than PSNR or SSIM

Author’s notes: 1. VMAF is now my metric of choice.  2. Since the first publication, I converted SSIM to decibel form using this formula from the Video Codec Testing and Quality Measurement : -10 * log10 (1 – SSIM) As it turns out, the results are the same (no comparisons in red) but now they should be correct.  Objective video …

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