Extension/Histogram.RoughDraft.Extension.ps1
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<# .SYNOPSIS Histogram Extension .DESCRIPTION Compute and draw a color distribution histogram for the input video. .LINK https://ffmpeg.org/ffmpeg-filters.html#histogram #> [Management.Automation.Cmdlet("Edit","Media")] [Management.Automation.Cmdlet("Show","Media")] param( # If set, will display a video histogram [Parameter(Mandatory)] [switch] $Histogram, # Set height of level. Default value is 200. Allowed range is [50, 2048]. [ValidateRange(50,2048)] [int] $HistogramLevelHeight, # Set height of color scale. Default value is 12. Allowed range is [0, 40]. [ValidateRange(0,40)] [int] $HistogramScaleHeight, <# Set display mode. It accepts the following values: |Value |Description | |-------|-------------------------------------------------------| |stack |Per color component graphs are placed below each other.| |parade |Per color component graphs are placed side by side. | |overlay| Presents information identical to that in the parade, except that the graphs representing color components are superimposed directly over one another. | #> [ValidateSet('Stack','Parade','Overlay')] [string] $HistogramDisplayMode, # Set mode. Can be either linear, or logarithmic. Default is linear. [Alias('HistogramLevelsMode')] [ValidateSet('linear','logarithmic')] [string] $HistogramLevelMode, # Set what color components to display. Default is 7. [Alias('HistogramComponents')] [int] $HistogramComponent, # Set foreground opacity. Default is 0.7. [ValidateRange(0,1)] [float] $HistogramForegroundOpacity, # Set background opacity. Default is 0.5. [ValidateRange(0,1)] [float] $HistogramBackgroundOpacity, # The colormode of the histogram. [ValidateSet('whiteonblack','blackonwhite','whiteongray','blackongray','coloronblack','coloronwhite','colorongray','blackoncolor','whiteoncolor','grayoncolor')] [string] $HistogramColorMode ) $filterArgs = @( if ($HistogramLevelHeight) {"level_height=$histogramLevelHeight"} if ($HistogramScaleHeight) {"scale_height=$HistogramScaleHeight"} if ($HistogramLevelMode) {"levels_mode=$($HistogramLevelMode.ToLower())"} if ($HistogramDisplayMode) {"display_mode=$($HistogramDisplayMode.ToLower())"} if ($HistogramComponent) {"components=$histogramComponent"} if ($HistogramForegroundOpacity) {"fgopacity=$HistogramForegroundOpacity"} if ($HistogramBackgroundOpacity) {"bgopacity=$HistogramBackgroundOpacity"} if ($HistogramColorMode) {"colors_mode=$histogramColorMode"} ) -join ':' "-vf" "histogram=$filterArgs" -replace '=$' |