Extension/Mandelbrot.rd.ext.ps1
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<# .Synopsis Generates fractals .Description Generates fractals using the mandelbrot filter. .Link https://ffmpeg.org/ffmpeg-filters.html#mandelbrot #> # It's an extension [Runtime.CompilerServices.Extension()] # that extends New-Media [Management.Automation.Cmdlet("New","Media")] param( # The type of fractal source [Parameter(Mandatory)] [switch] $Mandelbrot, # Set the initial x position (from -100 to 100) (default -0.743644) [int] $MandelbrotStartX, # Set the initial y position (from -100 to 100) (default -0.131826) [int] $MandelbrotStartY, # set the initial scale value (from 0 to FLT_MAX) (default 3) [double] $MandelbrotStartScale, # set the terminal scale value (from 0 to FLT_MAX) (default 0.3) [double] $MandelbrotEndScale, # set the terminal pts value (from 0 to I64_MAX) (default 400) [double] $MandelbrotEndPTS, # set the bailout value (from 0 to FLT_MAX) (default 10) $MandelbrotBailout, # set morph x frequency (from -FLT_MAX to FLT_MAX) (default 0.01) [double] $MandelbrotMorphXFrequency, # set morph y frequency (from -FLT_MAX to FLT_MAX) (default 0.0123) [double] $MandelbrotMorphYFrequency, # set morph amplitude (from -FLT_MAX to FLT_MAX) (default 0) [double] $MandelbrotMorphAmplitude, # set inner coloring mode (from 0 to INT_MAX) (default mincol) $MandelbrotInnerColoringMode, # set outer coloring mode (from 0 to INT_MAX) (default normalized_iteration_count) $MandelbrotOuterColoringMode ) $fractalSrc = "Mandelbrot" $fractalArgs = @( if ($resolution) { "s=$resolution" } if ($MandelbrotStartX) { "start_x=$MandelbrotStartX" } if ($MandelbrotStartY) { "start_y=$MandelbrotStartY" } if ($MandelbrotStartScale) { "start_scale=$MandelbrotStartScale" } if ($MandelbrotEndScale) { "end_scale=$MandelbrotEndScale" } if ($MandelbrotEndPTS) { "end_pts=$MandelbrotEndPTS" } if ($MandelbrotBailout) { "bailout=$MandelbrotBailout" } if ($MandelbrotMorphXFrequency) { "morphxf=$MandelbrotMorphXFrequency" } if ($MandelbrotMorphYFrequency) { "morphyf=$MandelbrotMorphYFrequency" } if ($MandelbrotMorphAmplitude) { "morphamp=$MandelbrotMorphAmplitude" } if ($MandelbrotInnerColoringMode) { "inner=$MandelbrotInnerColoringMode" } if ($MandelbrotOuterColoringMode) { "outer=$MandelbrotOuterColoringMode" } ) '-f' 'lavfi' '-i' ("$fractalSrc=".ToLower() + $( $fractalArgs -join ':' )) -replace '\=$' |