ab-av1

AV1 encoding tool with fast VMAF sampling. Uses svt-av1, ffmpeg & vmaf.

Command: auto-encode

Automatically determine the best crf to deliver the min-vmaf and use it to encode a video.

Two phases: * crf-search to determine the best --crf value * ffmpeg & SvtAv1EncApp to encode using the settings

ab-av1 auto-encode [OPTIONS] -i <INPUT> --preset <PRESET>

Command: crf-search

Interpolated binary search using sample-encode to find the best crf value delivering min-vmaf & max-encoded-percent.

Outputs: * Best crf value * Mean sample VMAF score * Predicted full encode size * Predicted full encode time

ab-av1 crf-search [OPTIONS] -i <INPUT> --preset <PRESET>

Command: sample-encode

Encode short video samples of an input using provided crf & preset. This is much quicker than full encode/vmaf run.

Outputs: * Mean sample VMAF score * Predicted full encode size * Predicted full encode time

ab-av1 sample-encode [OPTIONS] -i <INPUT> --crf <CRF> --preset <PRESET>

Command: encode

Simple invocation of ffmpeg & SvtAv1EncApp to reencode a video.

ab-av1 encode [OPTIONS] -i <INPUT> --crf <CRF> --preset <PRESET>

Command: vmaf

Simple full calculation of VMAF score distorted file vs original file.

ab-av1 vmaf --original <ORIGINAL> --distorted <DISTORTED>

Install

Arch Linux

Available in the AUR ab-av1.

Using cargo

sh cargo install ab-av1

Requirements

Built for Linux, needs: * svt-av1 * ffmpeg * vmaf * opus