Recent Posts

AV1 vs. VVC Mobile Playback: A Quick and Dirty Test

Streaming Media recently published my article on VVC and AV1, Software Decoding and the Future of Mobile Video. An honest evaluation of the article might observe that while the quality comparisons between SVT-AV1 and VVenC were relatively complete, the article didn’t share any mobile playback performance data. That’s because I couldn’t find any VVC players for testing on either mobile platform.  …

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When Metrics Mislead: Evaluating AI-Based Video Codecs Beyond VMAF

Recently, I reviewed the Deep Render AI codec and noticed a substantial disconnect between subjective and objective results. Subjective testing showed Deep Render with a 45 percent BD-Rate advantage over SVT-AV1. VMAF showed just 3 percent. While subjective evaluation has always been the gold standard, this gap forced a more basic question: how accurate are traditional objective metrics when applied …

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