ffmpeg( filepath )
.toFormat( 'mp4' )
.videoCodec( 'libx264' )
.audioCodec( 'aac' );
.videoFilters('crop=1080:1080:399:0' ) //HOW DO I MAKE THIS WORK?
.output( destination )
.fps( 30 )
.size( target_width + 'x' + target_height )
.on( 'error', (error, stdout, stderr) => reject(error) )
.on( 'end', resolve )
.run();