Compress-WebinarVideo: A PowerShell function that leverages ffmpeg to reduce the size of a webinar video file for more efficient storage

Compress-WebinarVideo.ps1

#------------------------------------------------------------------------------------------------------------------
# Author:   James Bartlett @jamesdbartlett3
# Synopsis: Uses ffmpeg to compress a webinar video to a much more manageable size
# Requires: ffmpeg CLI application, accessible in path
# Assumes:  
#------------------------------------------------------------------------------------------------------------------

function Compress-WebinarVideo {

    Param(
        [Parameter(Mandatory=$True, Position=0, ValueFromPipeline=$True)]
            [string]$inputVid,
        [Parameter(Mandatory=$False, Position=1, ValueFromPipeline=$False)]
            [int]$frameRate=12
    )

    [string]$targetDir = Get-ItemPropertyValue -Path $inputVid -Name FullName | Split-Path -Path {$_}
    [string]$inputFileBase = Get-ItemPropertyValue -Path $inputVid -Name BaseName
    [string]$inputFileExtension = Get-ItemPropertyValue -Path $inputVid -Name Extension
    [string]$outputFile = "$targetDir\$inputFileBase" + "_[" + $frameRate + "fps]" + $inputFileExtension

    ffmpeg -i $inputVid -c:v libx265 -filter:v fps=fps=$frameRate -ac 1 -ar 22050 $outputFile

}