---

$src = (Get-Location).Path
$dst = Join-Path $src "hdhd_new"

$videoExt = @(
    ".mp4", ".mov", ".m4v", ".avi", ".mkv", ".webm",
    ".wmv", ".flv", ".mts", ".m2ts", ".3gp"
)

New-Item -ItemType Directory -Force -Path $dst | Out-Null

Get-ChildItem -LiteralPath $src -Recurse -File |
Where-Object {
    -not $_.FullName.StartsWith(
        $dst + [System.IO.Path]::DirectorySeparatorChar,
        [System.StringComparison]::OrdinalIgnoreCase
    )
} |
ForEach-Object {
    $rel = $_.FullName.Substring($src.Length).TrimStart("\", "/")
    $outPath = Join-Path $dst $rel
    $outDir = Split-Path -Parent $outPath

    New-Item -ItemType Directory -Force -Path $outDir | Out-Null

    if ($videoExt -contains $_.Extension.ToLower()) {
        if ($_.Extension.ToLower() -eq ".mp4") {
            $outVideo = $outPath
        } else {
            $outVideo = "$outPath.mp4"
        }

        Write-Host "Перекодирую видео:" $_.FullName

        ffmpeg -hide_banner -y -i $_.FullName `
            -map 0:v:0 -map 0:a? `
            -c:v libx264 `
            -preset medium `
            -crf 20 `
            -profile:v high `
            -level 4.1 `
            -pix_fmt yuv420p `
            -c:a aac `
            -b:a 160k `
            -ac 2 `
            -movflags +faststart `
            $outVideo
    }
    else {
        Write-Host "Копирую файл:" $_.FullName
        Copy-Item -LiteralPath $_.FullName -Destination $outPath -Force
    }
}