Create rotated version of a video using vlc...

rotatevid

#!/bin/bash

#1. save this entire file to current directory as a file named rotatevid
#2. then make it executable from current directory with command: chmod +x rotatevid
#3. then run a conversion in current directory with command like this: ./rotatevid yourfilename.mp4
#4. the converted file will be called OutputFile.mp4 in current directory
#
# Options for --transform-type below are: 90,180,270,hflip,vflip

vlc --no-repeat --no-loop -I dummy $1 --transform-type=270 --sout="#transcode{vfilter=transform}:std{access=file,mux=mp4,dst=OutputFile.mp4}" vlc://quit