mp4 rotate (flip)

mp4_rotate.cmd

SET FFMPEG="C:\dvdz\ffmpeg\ffmpeg.exe"
@ECHO OFF
FOR %%a IN ("*.mp4") DO (
title rotate "%%a"
%FFMPEG% -i "%%a" -vf "vflip,hflip"   "%%~na".rot.mp4
)
pause

https://pastebin.com/9q8zMt9K