Inital push

Get-FramesCount.ps1

@@ -0,0 +1,33 @@
+<#
+.SYNOPSIS
+    Gets the total frame count of a video file using ffprobe.
+.PARAMETER Video
+    Path to the input video file. Can be absolute or relative to current directory.
+.DESCRIPTION
+    Gets the total frame count of a video file using ffprobe.
+#>
+param(
+    [Parameter(Mandatory = $true)]
+    [string]$Video
+)
+
+Set-StrictMode -Version Latest
+$ErrorActionPreference = 'Stop'
+
+$VideoPath = $Video
+
+if (-not (Test-Path $VideoPath)) {
+    Write-Error ('Video file not found: {0}' -f $VideoPath)
+    exit 1
+}
+
+$PSNativeCommandUseErrorActionPreference = $false
+
+$totalFrames = & ffprobe -v error -select_streams v:0 -count_frames -show_entries stream=nb_read_frames -of csv=p=0 $VideoPath 2>&1 | Select-Object -First 1
+
+if (-not $totalFrames -or $totalFrames -notmatch '^\d+$') {
+    Write-Error ('Could not determine frame count for: {0}' -f $VideoPath)
+    exit 1
+}
+
+Write-Host ('Total frames: {0}' -f $totalFrames)