--vmaf
Plot an SVG of the VMAF for the encode
This option is independent of --target-quality, i.e. it can be used with or without it.
The SVG plot is created in the same directory as the output file.
--vmaf-path <VMAF_PATH>
Path to VMAF model (used by --vmaf and --target-quality)
If not specified, ffmpeg's default is used.
--vmaf-res <VMAF_RES>
Resolution used for VMAF calculation
If set to inputres, the output video will be scaled to the resolution of the input video.
[default: 1920x1080]
--vmaf-threads <VMAF_THREADS>
Number of threads to use for target quality VMAF calculation
--vmaf-filter <VMAF_FILTER>
Filter applied to source at VMAF calcualation
This option should be specified if the source is cropped, for example.