Per-Title Encoding: It’s Everywhere!

Netflix started the per-title encode optimization revolution in December 2015, and now per-title encoding is showing up in more and more places. Why? Because it improves the quality of hard-to-encode videos, and saves bandwidth costs on easier-to-encode videos. If per-title optimization is not available in your encoder or encoding service, it’s time to start demanding…

Netflix Discusses VP9-Related Development Efforts

Once counted out, VP9 is on the rise, with support from Netflix, JW Player, Brightcove, and more. In this interview, David Ronca of Netflix talks about VP9 savings, encoding, and testing. This is an interesting time in the codec world, an inflection point where the power of an expensive standard is being challenged by a…

Book Excerpt: VBV Buffer Explained

This article is kind of a prequel to my book, Encoding by the Numbers, which I published in 2016. That is, I published this article to get commentary from folks who read it, which I factored back into my book. Unfortunately, I changed content management systems in 2018 and lost the comments.  One of the…

The Four Pillars of Video Encoding

  Figure 1. The four critical aspects to consider when encoding a file. Executive Summary: While video quality is always top of mind, consider deliverability, compatibility, and playability before finalizing your encoding presets.  Too often we look at video encoding with a single point of focus; achieving the best possible quality for the lowest possible…

Netflix Admits to Throttling AT&T and Verizon Cellular Movies

Last week, Netflix admitted that they artificially throttle the data rate of videos transmitted over AT&T and Verizon cellular networks to limit bandwidth consumption and the associated overage charges. Netflix doesn’t throttle video streams transmitted on other cellular networks like T-Mobile and Sprint that don’t charge for overages. The story was broken by the Wall…