Block 8. Tools

A map of video quality tools in 2026: full-reference engines, no-reference tools, QC suites, and QoE stacks — and how to pick or build one.

Compute VMAF, PSNR, and SSIM with FFmpeg and libvmaf: the exact commands, the input-order and scaling traps, model choice, and a reusable script.

What MSU VQMT and dedicated tools like AVQT and FFMetrics add over FFmpeg — more metrics, per-frame plots, HDR, GPU — and when the extra is worth it.

Commercial video quality suites don't give you a better VMAF — they sell scale, support, compliance, and live monitoring. When buying beats building.

The open-source no-reference video quality toolbox: FFmpeg blockdetect and CAMBI, NIQE and BRISQUE via pyiqa, and learned UGC models FAST-VQA and DOVER.

Wire VMAF measurement into CI/CD: separate the stages, pin FFmpeg and the model in a container, cache the reference, scale on GPU, and report cleanly.

Read video quality as pictures: the per-frame plot for when, the spatial heatmap for where, and the rate-quality curve for how much each bit buys.