Extension/ShowVectorScope.RoughDraft.Extension.ps1
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<# .SYNOPSIS Shows a Vector Scope of the Audio .DESCRIPTION Shows a Vector Scope of the Audio, using the [avectorscope filter](https://ffmpeg.org/ffmpeg-filters.html#avectorscope) .LINK https://ffmpeg.org/ffmpeg-filters.html#avectorscope .EXAMPLE Show-Media -InputPath .\a.mp3 -ShowVectorScope .EXAMPLE Edit-Media -InputPath .\a.mp3 -ShowVectorScope -OutputPath .\a.mp4 #> [Management.Automation.Cmdlet("(?>New|Edit|Show)", "Media")] param( # If set, will show volume [Parameter(Mandatory)] [switch] $ShowVectorScope, # Specify the video size for the output. Default value is 400x400 [Alias('avectorscope_size')] [string] $ShowVectorScopeSize, # Set the vectorscope mode. [validateset("lissajous",'lissajous_xy','polar')] [alias('avectorscope_mode')] [string] $ShowVectorScopeMode, # Set the zoom factor. # Default value is 1. # Allowed range is [0, 10]. # Values lower than 1 will auto adjust zoom factor to maximal possible value. [alias('avectorscope_zoom')] [ValidateRange(0,10)] [double] $ShowVectorScopeZoom, # Set the vectorscope drawing mode. [validateset("dot",'line')] [alias('avectorscope_draw')] [string] $ShowVectorScopeDrawMode, # Specify amplitude scale of audio samples [Alias('avectorscope_scale')] [ValidateSet('lin','log','sqrt','cbrt')] [string] $ShowVectorScopeScale, # Swap left channel axis with right channel axis. [Alias('avectorscope_swap')] [switch] $ShowVectorScopeSwap, # Mirror axis. [Alias('avectorscope_mirror')] [ValidateSet('none','x','y','xy')] [string] $ShowVectorScopeMirror, # Specify the red contrast. Default values is 40. [Alias('avectorscope_rc')] [ValidateRange(0,255)] [int] $ShowVectorScopeRedContrast, # Specify the green contrast. Default value is 160. [Alias('avectorscope_gc')] [ValidateRange(0,255)] [int] $ShowVectorScopeGreenContrast, # Specify the blue contrast. Default value is 80. [Alias('avectorscope_bc')] [ValidateRange(0,255)] [int] $ShowVectorScopeBlueContrast, # Specify the alpha contrast. Default values is 255. [Alias('avectorscope_ac')] [ValidateRange(0,255)] [int] $ShowVectorScopeAlphaContrast, # Specify the red, green, blue and alpha fade. Default values is 15. [Alias('avectorscope_rf')] [ValidateRange(0,255)] [int] $ShowVectorScopeRedFade, # Specify the green fade. Default values is 10. [Alias('avectorscope_gf')] [ValidateRange(0,255)] [int] $ShowVectorScopeGreenFade, # Specify the blue fade. Default values is 5. [Alias('avectorscope_bf')] [ValidateRange(0,255)] [int] $ShowVectorScopeBlueFade, # Specify the alpha fade. Default values is 5. [Alias('avectorscope_af')] [ValidateRange(0,255)] [int] $ShowVectorScopeAlphaFade ) foreach ($ToShorten in 'ShowVolumeOrientation', 'ShowVolumeMode') { if ($PSBoundParameters[$ToShorten]) { $PSBoundParameters[$ToShorten] = $PSBoundParameters[$ToShorten].ToString().Substring(0,1).ToLower() } } $myCmd = $MyInvocation.MyCommand $filterArgs = @( foreach ($kv in $PSBoundParameters.GetEnumerator()) { $match= foreach ($paramAlias in $myCmd.Parameters[$kv.Key].Aliases) { $m = [Regex]::Match($paramAlias, '_(?<p>.+)$') if ($m.Success) { $m;break } } if ($match.Success) { $v = $kv.Value $p = $match.Value -replace '^_' if ($v -is [switch]) { $v = ($v -as [bool] -as [int]).ToString().ToLower() } if ($v -is [string] -and $myCmd.Parameters[$kv.Key].ValidateSet) { $v = $v.ToLower() } "$p=$($v)" } } ) -join ':' if ($commandName -eq 'Edit-Media') { $null = $outputPath -match '\.[^\.]+$' $outputPathExtension = $matches.0 $null = $inputPath -match '\.[^\.]+$' $inputPathExtension = $matches.0 if ($inputPathExtension -and $inputPathExtension -eq $outputPathExtension) { $inputCodecType = @((Get-Media -InputPath $inputPath).CodecTypes)[0] if ($inputCodecType -eq 'Audio') { [psvariable]::new('OutputPath', ($outputPath -replace '\.[^\.]+$','.mp4')) } } "-filter_complex" "[0:a]avectorscope=${filterargs},format=$pixelFormat[v]", "-map", "[v]", "-map", '0:a', '-c:v', 'libx264', '-c:a', 'copy' } else { "-f" "lavfi" "$inputAudioMovieFilter,asplit=2[out1][a];[a]avectorscope=${filterargs},format=yuv420p[out0]" } |