Public/System/ConvertTo-GifFromMp4.ps1
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function ConvertTo-GifFromMp4 { [CmdletBinding()] [CmdLetTag()] param ( [parameter(Mandatory,ValueFromPipeline)] [System.IO.FileInfo]$Mp4Path, [parameter()] [string]$OutputFile, [int]$FrameRate=7, [int]$Width=-1 ) begin { $PSCmdlet|Write-PSCmdLetBegin if (!(Get-Chocopackage ffmpeg)){ Install-ChocoPackage ffmpeg } } process { Invoke-Script{ if (!$OutputFile){ $OutputFile="$($Mp4Path.DirectoryName)\$($Mp4Path.BaseName).gif" } Remove-Item $OutputFile -ErrorAction SilentlyContinue $palette="$env:TEMP/palette.png" # $filters="fps=$FrameRate,scale=$Width`:-1:flags=lanczos" # ffmpeg -v warning -i $Mp4Path -vf "$filters,palettegen=stats_mode=diff" -y $palette # ffmpeg -i $Mp4Path -i $palette -lavfi "$filters,paletteuse=dither=bayer:bayer_scale=5:diff_mode=rectangle" -y $OutputFile ffmpeg -i $Mp4Path -vf "fps=$frameRate,scale=$Width`:-1:flags=lanczos" $OutputFile Get-Item $OutputFile } } end { } } |