#!/usr/bin/env perl use v5.36; use Image::Magick; unless ($ARGV[0]) { say "give me image file, e.g.: $0 goatse.jpeg"; exit 64; } my $p = Image::Magick->new; my $file = $ARGV[0]; $p->Read($file); # Write to STDOUT instead of file binmode STDOUT; $p->Write('avif:-');