ffmpeg -h filter=negate ...................... Filter negate Negate input video. slice threading supported Inputs: #0: default (video) Outputs: #0: default (video) negate AVOptions: negate_alpha <boolean> ..FV.....T. (default false) This filter has support for timeline through the 'enable' option. ffplay -i test.mp4 -vf negate=negate_alpha=true ffplay -i test.mp4 -vf negate=negate_alpha=false