Codecs

This blog includes the video and handout from my talk on “How to Produce x264 and x265 Video at Maximum Quality and Maximum Efficiency” at NAB 2023 (thanks to Dan Rayburn). Here’s the description. This research-based session explores configuration options like presets, threads, color depth, and others that impact output quality and encoding efficiency. Balancing encoding cost and streaming bandwidth, …

The last time I looked at VVC playback in software was for this article in Streaming Media Magazine. Fraunhofer’s VVDec decoder delivered an uninspiring 39 frames per second when converting the input file to YUV. This was on a (then) nine year old i7-based HP desktop. I just retested with a version of FFmpeg that Fraunhofer supplied, and this number …

Two free learning resources are available on the Streaming Media website; How to Produce VVC With FFmpeg and How to Script for FFmpeg Using PowerShell and BASH. They’re tutorials in the Streaming Media Sourcebook, an annual production containing useful articles and collections. Learn Variables and For Loops Here’s the abridged intro: Most FFmpeg users start by creating a simple static command …

I recently posted a request for video test clips on LinkedIn. This article summarizes the websites listed in the responses. Thanks to all who responded. 4KMedia An absolutely fabulous resource for compressionists looking for a broad range of 4K footage of reasonable duration, many, like this NY promotional clip, in HDR. Here’s the site description. 4KMedia.org is intended to demonstrate …

Note: I’ve updated the descriptions below with links to the actual presentations. I will add the videos once they become available.  Streaming Media East is always a great event for learning, meeting, greeting, and catching up on the latest trends and technical innovations in the Streaming Industry. This year’s event will be held May 17 – 19 at the Boston …

You can download the presentation handout here (download). I’ll add the video once it becomes available.  I’m thrilled to speak at Mile-High Video in Denver, which runs from May 7 – 10 2023. My presentation is on Sunday, May 7, entitled, “Encoding and Packaging x265/HDR with FFmpeg, Bento4 and mp4box.” The description is, “this introductory session will cover the basics …

Just a quick note that I’ve updated the course, Streaming Media 101: Technical Onboarding for Streaming Media Professionals with a new lesson entitled Codec Update 2023. You can see the agenda in Figure 1 below. For those in a hurry, you can scan through and see my recommendations for 2023 forty seconds in. Choosing the best codec for streaming involves …

The Bitmovin Video Developer Report, now in its 6th edition, is one of the most far-reaching and useful documents available to streaming professionals (now with no registration required). It’s a report that I happily download each December and generally refer to frequently during the next twelve months. Like the proverbial elephant, what you find important in the report depends upon …

Learning how to build an encoding ladder is one of the most fundamental tasks for a streaming media professional. It’s astounding how much you need to know to get it right. By way of background, the original encoding ladder used by most professionals was from Apple Tech Note TN2224, long since replaced by Apple’s HLS Authoring Specifications. This H.264-only ladder …

For some reason I can’t explain, Molly Brown’s comment from the movie Titanic, “there’s something you don’t see every day,” (while watching the doomed ship sink), has stuck with me since I saw the movie back in 1997. It recently came to mind when a colleague informed me that HEVC support had eclipsed AV1 on the CanIUse website. You see …