Simple bash script to add border and/or rotate a video

video-border-rotate.sh

#!/bin/bash
# https://gist.github.com/frederickk/d91751e88780ca0939e6bb344ad4dfcf

# Usage
# ./video-border-rotate.sh -i foo.mp4 -x 100 # Add 100px border on left and right
# ./video-border-rotate.sh -i foo.mp4 -y 100 # Add 100px border on top and bottom
# ./video-border-rotate.sh -i foo.mp4 -x 100 -y 150 # Add 100px border on left and right and 150px border on top and bottom
sides
# ./video-border-rotate.sh -i foo.mp4 -x 100 -y 150 -c "red" # Add 100px red border on left and right and 150px red border on top and bottom
# ./video-border-rotate.sh -i foo.mp4 -r 1 # Rotate video 90 degrees clockwise
# ./video-border-rotate.sh -i foo.mp4 -r 2 # Rotate video 90 degrees anti-clockwise
# ./video-border-rotate.sh -i foo.mp4 -r 1 -x 396 -y 264 # Rotate video 90 degrees clockwise, with a 396px border on top and bottom and 364px border on left and right (because the video gets rotated, after adding border)

# Defaults
X_WIDTH=0
Y_WIDTH=0
ROTATE=0
COLOR="white"

while getopts ":i:x:y:r:c:" opt; do
  case $opt in
    i) SRC=${OPTARG};;
    x) X_WIDTH=${OPTARG};;
    y) Y_WIDTH=${OPTARG};;
    r) ROTATE=${OPTARG};;
    c) COLOR=${OPTARG};;
  esac
done

echo $SRC

if [ -z "$SRC" ]; then
  echo "⛔️ Error source file '-i foo.mp4' required"
else
  OUTSRC=${SRC%.*}_B$COLOR$X_WIDTH$Y_WIDTH
  ffmpeg -i $SRC -filter_complex "[0]pad=w=iw+($X_WIDTH*2):h=ih+($Y_WIDTH*2):x=$X_WIDTH:y=$Y_WIDTH:color=$COLOR" $OUTSRC.mp4

  if [[ "$ROTATE" == 1 || "$ROTATE" == 2 ]]; then
    # https://www.ostechnix.com/how-to-rotate-videos-using-ffmpeg-from-commandline/
    if [ $ROTATE == 1 ]; then
      ROTATE_DEG="90"
    elif [ $ROTATE == 2 ]; then
      ROTATE_DEG="-90"
    fi
    
    ffmpeg -i $OUTSRC.mp4 -vf "transpose=$ROTATE" $OUTSRC$ROTATE_DEG.mp4
    rm $OUTSRC.mp4
    OUTSRC=$OUTSRC$ROTATE_DEG.mp4
  fi

  echo "🎥 All done! $OUTSRC"
fi