==== ffmpeg ====

== Forgatás: ==
  ffmpeg -i input.mp4 -vf transpose=2 output.mp4

  * 0 = 90° counter-clockwise and vertical flip (default)
  * 1 = 90° clockwise
  * 2 = 90° counter-clockwise
  * 3 = 90° clockwise and vertical flip


== Vágás: ==
  ffmpeg -i input.mp4 -ss 00:00:00.200 -c:v copy -c:a copy output.mp4