Extension/DrawText.RoughDraft.Extension.ps1
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<# .SYNOPSIS Draws Text on Video .DESCRIPTION Draws Text on Video, using the [drawtext filter](http://ffmpeg.org/ffmpeg-filters.html#drawtext) .EXAMPLE New-Media -Color "Black" -Duration "00:00:05" -Resolution 1920x1080 -OutputPath .\BlackBackground.mp4 | Edit-Media -DrawText -DrawTextText "Hello World" -DrawTextCenter -DrawTextFontSize 36 .LINK http://ffmpeg.org/ffmpeg-filters.html#drawtext #> [Management.Automation.Cmdlet("^(?>Edit|Show)", "Media")] [Reflection.AssemblyMetaData("Order", 1000)] # We want DrawText to happen after almost every other effect. param( [Parameter(Mandatory)] [switch] $DrawText, # set font file [string] $DrawTextFontFile, # set text [string] $DrawTextText, # set text file [string] $DrawTextTextFile, # set foreground color (default "black") [string] $DrawTextFontColor, # set foreground color expression (default "") [string] $DrawTextFontColorExpression, # set box color (default "white") [string] $DrawTextBoxColor, # set border color (default "black") [string] $DrawTextBorderColor, # set shadow color (default "black") [string] $DrawTextShadowColor, # set box (default false) [switch] $DrawTextBox, # set box border width (from INT_MIN to INT_MAX) (default 0) [int] $DrawTextBoxBorderWidth, # set line spacing in pixels (from INT_MIN to INT_MAX) (default 0) [int] $DrawTextLineSpacing, # set font size [string] $DrawTextFontSize, # set x expression (default "0") [string] $DrawTextX, # set y expression (default "0") [string] $DrawTextY, # set shadow x offset (from INT_MIN to INT_MAX) (default 0) [int] $DrawTextShadowX, # set shadow y offset (from INT_MIN to INT_MAX) (default 0) [int] $DrawTextShadowY, # set border width (from INT_MIN to INT_MAX) (default 0) [int] $DrawTextBorderWidth, # set tab size (from 0 to INT_MAX) (default 4) [int] $DrawTextTabSize, # set base time (from I64_MIN to I64_MAX) (default I64_MIN) [int64] $DrawTextBasetime, # Font name (default "Sans") [string] $DrawTextFont, # set the expansion mode (from 0 to 2) (default normal) [int] $DrawTextExpansion, # set initial timecode [string] $DrawTextTimeCode, # set 24 hours max (timecode only) (default false) [boolean] $DrawTextTc24hmax, # set rate (timecode only) (from 0 to INT_MAX) (default 0/1) [double] $DrawTextTimecodeRate, # set rate (timecode only) (from 0 to INT_MAX) (default 0/1) [double] $DrawTextRate, # reload text file for each frame (default false) [switch] $DrawTextReload, # apply alpha while rendering (default "1") [string] $DrawTextAlpha, # check and fix text coords to avoid clipping (default false) [switch] $DrawTextFixBounds, # start frame number for n/frame_num variable (from 0 to INT_MAX) (default 0) [int] $DrawTextStartNumber, # the source of text [string] $DrawTextTextSource, # attempt to shape text before drawing (default true) [switch] $DrawTextTextShaping, # set font loading flags for libfreetype (default 0) [int] $DrawTextFontLoadFlags, # If set, will draw text in the center. # This will provide -DrawTextX '(w-text_w)/2' and -DrawTextY '(h-text_h)/2' [switch] $DrawTextCenter ) $realName = @{ DrawTextFontColorExpression = 'fontcolor_expr' DrawTextBoxBorderWidth = 'boxborderw' DrawTextBorderWidth = 'borderw' DrawTextTimecodeRate = 'timecode_rate' DrawTextFixBounds = 'fix_bounds' DrawTextStartNumber = 'start_number' DrawTextTextSource = 'text_source' DrawTextTextShaping = 'text_shaping' DrawTextFontLoadFlags = 'ft_load_flags' } if ($DrawTextCenter) { if (-not $DrawTextX) { $PSBoundParameters['DrawTextX'] = $DrawTextX = "(w-text_w)/2" } if (-not $DrawTextY) { $PSBoundParameters['DrawTextY'] = $DrawTextY = "(h-text_h)/2" } } $filterArgs = @( foreach ($param in $PSBoundParameters.GetEnumerator()) { if ($param.Key -IN 'DrawText', 'DrawTextCenter', 'Verbose', 'Debug', 'WarningAction', 'WarningVariable', 'ErrorAction', 'ErrorVariable') { continue } $filterName = if ($realName[$param.Key]) { $realName[$param.Key] } else { ($param.Key -replace '^DrawText').ToLower() } $filterValue = if ($param.Value -is [switch]) { ($param.Value -as [bool]).ToString().ToLower() } elseif ($param.Value -is [string]) { "'$($param.Value.Replace('\', "'\\\\'").Replace("'","'\''").Replace(":", "'\\:'").Replace('"','\"'))'" } else { $param.Value } <# if ($filterName -eq 'text') { $tmpFile = if ($env:TEMP) { Join-Path $env:TEMP "DrawText$(Get-Random).txt" } else { Join-Path "/tmp" "DrawText$(Get-Random).txt" } $filterName = "textfile" $filterValue = "'$("$tmpFile".Replace('\', "'\\\\'").Replace("'","'\''").Replace(":", "'\\:'"))'" } #> "`"$filterName=$filterValue`"" } ) -join ':' "-vf" "drawtext=$filterArgs" -replace '=$' |