Creating a Unique Encoding Ladder for Smartphone Viewers

Many producers distribute the same encoding ladder to all viewers. However, sending a 1080p stream to smartphone viewers may be a waste of bandwidth as both SSIMPLUS and VMAF scores reveal that lower resolution, lower-bandwidth videos deliver similar quality at a lower cost.

This tutorial, from my course Computing and Using Video Quality Metrics, shows you the tests I performed to reach this conclusion with concrete recommendations on how to proceed.

Briefly, the course teaches encoding professionals how to use metrics like SNR, SSIM, VMAF, and SSIMPLUS to guide day-to-day encoding decisions like choosing the optimal encoding settings, creating encoding ladders, and evaluating codecs and encoding tools. It also contains a number of tutorials like this one.

Here’s the tutorial:

About 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.

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