Fine Tuning with Objective Quality Metrics

Lessons Introduction and Overview of Fine Tuning with Objective Quality Metrics What are objective quality metrics? How do they compare? Using objective quality metrics Moscow State University Tool SSIMplus Quality of Experience Monitor Configuring your x264 Encodes Choosing an x264 preset Choosing a keyframe interval Choosing the number of reference frames Variable bitrate encoding vs. […]

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15 Lessons

Fine Tuning with Objective Quality Metrics

Choosing the number of streams in an adaptive group and configuring them is usually a subjective, touchy-feely exercise, with no way to really gauge the effectiveness and efficiency of the streams. However, by measuring stream quality via metrics such as PSNR, SSIMplus, and VQM, you can precisely assess the quality delivered by each stream and its relevancy to the adaptive group. This presentation identifies several key objective quality metrics, teaches how to apply them, and provides an objective framework for analyzing which streams are absolutely required in your adaptive group and their optimal configuration.

Bitrate control is a fundamental encoding decision that impacts overall quality, transient quality, and deliverability. Learn about all three here.