convertmp4: A bash shell script to make the calls to ffmpeg a little simpler for converting OBS .flv output to .mp4

convertmp4

#!/bin/bash
#
# this will call ffmeg to convert a .flv to a .mp4
#
# NOTE: ffmeg is expected to be install and in your path
# 
#    usage: convertmp4 infile.flv
#
# output will be a .mp4 file in the same directory
#
# Example: 
#   convertmp4 /Users/myname/Movies/obsrecording.flv
# will create 
#   /Users/myname/Movies/obsrecording.mp4

showUsage()
{
	echo "usage: $(basename "$0") infile.flv"
}

# only takes one parameter
if [ $# -ne 1 ] ; then
	echo "Illegal number of arguments"
	showUsage
	exit 1
fi

# only works on .flv files
if [[ $1 =~ \.flv$ ]]; then
	'ffmpeg' -i "$1" -c copy -copyts "${1%.*}.mp4"
else 
	echo "Filename should end with .flv"
	showUsage
	exit 1
fi