Get-ChildItem -Path "*.mkv" | ForEach-Object ffmpeg -i $_ -c:v libx265 -crf 28 -c:a aac -b:a 128k ($_.BaseName + ".mp4")
ffmpeg -i "Young.Sheldon.S04E05.mkv" -ss 00:10:30 -to 00:12:45 -c copy clip.mkv Windows (PowerShell): young sheldon s04e05 ffmpeg