Matplotlib tool for visual representation of libvmaf metrics.
Based on plotbitrate https://github.com/zeroepoch/plotbitrate
Usage:
Generate log file, for example
ffmpeg -i distorted.mp4 -i ref.mp4 -lavfi libvmaf="psnr=1:ssim=1:log_fmt=json:log_path=log.json" -f null -
Show graph
./plotvmaf.py log.json
Save video stream bitrate to an SVG file
./plotvmaf.py -o output.svg log.json