viser-quality

VMAF, PSNR, and SSIM quality measurement via FFmpeg's libvmaf filter.

Key Types

• Metric — quality metric variant (Vmaf, Psnr, Ssim)
• MeasureOpts — measurement options (metrics, subsample, VMAF model, per-frame flag)
• Result — aggregate scores and optional per-frame data

Key Functions

• measure(reference, distorted, opts) — computes quality between reference and distorted video