The Four Pillars of Video Encoding

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

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How Netflix Pioneered Per-Title Video Encoding Optimization

The Netflix blog post entitled Per-Title Encode Optimization boldly declares that “to deliver the best quality video to our members, each title should receive a unique bitrate ladder, tailored to its specific complexity characteristics.”

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Beamr Technology Assessment

I recently finished evaluating Beamr Video. The evaluation included analyzing the quality of the resulting clips using objective measures such as PSNR, SSIM and VQM, and conducting extensive viewing of the optimized clips, assessing their subjective quality compared to the original clips. Following this evaluation, I concluded that “for 99.99% of the expert and average viewers, the Beamr-processed clips would …

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Everything You Ever Wanted to Know About IDR Frames but Were Afraid to Ask

This article is derived from a lesson in Streaming Media 101: Technical Onboarding for Streaming Media Professionals. If you’re looking for an efficient way to get up to speed on key streaming terms, technologies, workflows, and best practices, check out the course here.  Depending upon your encoding tool, you may have access to a checkbox or number box that controls …

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What is Data Rate and Bits Per Pixel

This article discusses what data rate is and why it’s important, and what bits per pixel measures and how to compute it.  What is Data Rate? Data rate (or bit rate) is the amount of data per second of video, usually expressed in kilobits (kbps) or megabits per second (Mbps). When I say that ESPN distributes their video at 800 …

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