add-before-after.sh

#! /bin/bash

MY_DIR=$PWD

if [[ $# -lt 2 ]]; then
    echo 'Please provide two timestamps of the format hh:mm:ss. The first is where you want a "Before" frame, and the second is where you want an "After" frame'
    exit 0
fi

if [[ $# -lt 3 ]]; then
    echo 'please provide the path to an mp4 file'
    exit 0
fi

cd /tmp
DATE_PATH="$(date +'%m-%d-%y-%H-%M-%S')"
mkdir $DATE_PATH
cd $DATE_PATH

# bring in before  nand after
curl -L https://www.dropbox.com/s/cl53unjslxtqq7b/before.mp4\?dl\=0 >before.mp4
curl -L https://www.dropbox.com/s/on18roo0l2jzoqi/after.mp4?dl=0 >after.mp4

if [ ! -f $3 ]; then
    echo "File not found!"
    exit 1
fi

echo $1
echo $2
echo $3

# # create three videos. Start and
ffmpeg -hide_banner -loglevel error -ss 00:00:00 -i $3 -c copy -to $1 frame-1.mp4
ffmpeg -hide_banner -loglevel error -ss $1 -i $3 -c copy -to $2 frame-2.mp4
ffmpeg -hide_banner -loglevel error -ss $2 -i $3 -c copy -to 99:00:00 frame-3.mp4

# ls -l

# Concatenate these three
echo file "frame-1.mp4" >concat.txt
echo file "before.mp4" >>concat.txt
echo file "frame-2.mp4" >>concat.txt
echo file "after.mp4" >>concat.txt
echo file "frame-3.mp4" >>concat.txt

ffmpeg -hide_banner -loglevel error -f concat -safe 0 -i concat.txt -c copy output.mp4 >>/dev/null
mv output.mp4 $MY_DIR
echo $MY_DIR