Module vmaf 

VMAF quality measurement via ffmpeg’s libvmaf filter.

libvmaf is not present in every ffmpeg build, so callers should gate on has_libvmaf and degrade gracefully (skip the measurement) when it is absent — see the CLI’s --vmaf handling.

Functions

has_libvmaf

Whether this ffmpeg build exposes the libvmaf filter.

measure_vmaf

Measure the VMAF of distorted against the reference (original) video.