avi_samsung_xvid_fix.ps1

<#
.SYNOPSIS
    Use this script to fix AVI Xvid or DivX files to be playable on newer Samsung TV's
    Do not run this script from Powershell ISE, only run from Powershell terminal window or Windows Terminal
    Prerequisite: ffmpeg.exe in global path
#>

# if you want to backup files first before processing set this variable value to $true
[bool] $EnableBackup = $false

# for example, if backup fails then stop the script
$ErrorActionPreference = 'stop'

$FilesToProcess = Get-ChildItem -path $PSScriptRoot -Filter *.avi -Recurse

for ($i = 0; $i -lt $FilesToProcess.Length; $i++) {

    $source = $FilesToProcess[$i].FullName

    Write-Host $("(" + [string]($i+1) + '\' + [string]$FilesToProcess.Length + ") " + $source) -ForegroundColor red -BackgroundColor white

    # backup
    if ($EnableBackup -and (-not (Test-Path($($source + ".bak")) ))) {
        Write-Host "backing up: $source"
        Copy-Item -PAth $source -Destination $($source + ".bak")
    }

    # rename original file
    Move-Item -Path $source -Destination $($source + '.baksrc')

    # ffmpeg process, src: https://www.avforums.com/threads/a-simple-trick-to-play-avi-xvid-divx-videos-on-samsung-tv-without-re-encoding.2341579/
    &  ffmpeg -i $('"' + $source + ".baksrc" + '"') -nostats -loglevel error -c copy -bsf:v mpeg4_unpack_bframes -vtag FMP4  $('"' + $source + '"')

    # remove original file
    Remove-Item -Path $($source + '.baksrc')

}