# Converts videos to HEVC for given path:

# Ref: https://trac.ffmpeg.org/wiki/Encode/H.265
# https://github.com/rigaya/NVEnc/releases

$videoPath = 'M:\1_movies\kids.movies\Alvin und die Chipmunks (1-3)\'


# HEVC : main, main10, main444
$profile = 'main10'

$NVEncoder = "$PSScriptRoot\encoder\NVEncC64.exe"
$arguments = ''

if(!(Test-Path $NVEncoder -PathType leaf))
{
    Write-Host "NVEncC64.exe not found, please check path in `"$NVEncoder`"." -ForegroundColor Yellow
    exit
}


# Gets Video List File Contents
$videos = Get-ChildItem -Path $videoPath -Name -Recurse -Include ('*.avi', '*.mp4', '*.mkv')
$videoID = 1
$count = $videos.Count
if($videos.Count -lt 1)
{
    Write-Host "No videos found in: $PSScriptRoot\video_file_list.txt" -ForegroundColor Red
    exit
}

Write-Host "Converting $count videos.." -ForegroundColor Cyan

foreach($video in $videos)
{
    # Converts video using NVEncC64
    $video = $video.Replace("`"", "")
    $inputFile = $videoPath + $video
    $outputFile = $videoPath + $video.Insert(($video.Length - 4), '(HEVC)')
    Write-Host
    Write-Host "Converting video ($videoID of $count), please wait.." -ForegroundColor Magenta
    Write-Host "$video `nto:`n$outputFile" -ForegroundColor White
    Write-Host

    $arguments = "--input `"$inputFile`" --codec hevc --audio-copy 1,2 --profile $profile --output `"$outputFile`""
	
    Start-Process $NVEncoder -ArgumentList $arguments -WindowStyle Minimized

    $processName = 'NVEncC64'
    Start-Sleep -Seconds 8
    # Sets to use 3 cores (always set to one less core that your CPU has)
    # 2 Cores = 3, 3 Cores = 7, 4 cores = 15, 5 cores = 31, 6 cores = 63
    # Code to calculate for your CPU:
    # $noOfCores = Get-WmiObject Win32_Processor | Measure-Object NumberOfLogicalProcessors -Sum
    # $noOfCores.Sum = $noOfCores.Sum - 1
    # [math]::Pow(2,$($noOfCores).Sum) - 1
    #
    $process = Get-Process $processName; $process.ProcessorAffinity=7
    Start-Sleep -Seconds 8
    # Sets priorty to High
    # Values: High, AboveNormal, Normal, BelowNormal, Low
    $process = Get-Process -Id $process.Id
    $process.PriorityClass = 'High'

    # Waits for process to complete
    $processID = (Get-Process $processName).id
    Wait-Process -Id $processID
	
	if(Test-Path $outputFile)
	{
		Write-Host "CONVERSION WORKED! FILE: `"$outputFile`" FOUND" -ForegroundColor Yellow
		# TODO delete old and Move file name!
	}
	
    # Increments video counter
    $videoID = $videoID + 1
    Start-Sleep -Seconds 4
}

Write-Host "Finished converted $count videos." -ForegroundColor Green

exit