Convert a video file to a format that can be played on a Chromecast

convert-for-chromecast.sh

#!/bin/bash
# Convert a video file to a format that can be played on a Chromecast
# Requires ffmpeg 
# Usage: convert-for-chromecast.sh <input file>
# Output: <input file>.chromecast.mp4
# Author:
# Olaf van der Kruk

# Check if input file is given
if [ -z "$1" ]; then
    echo "Usage: convert-for-chromecast.sh <input file>"
    exit 1
fi
# extract filename and extension
filename=$(basename "$1")
extension="${filename##*.}"
filename="${filename%.*}"
# convert to mp4
ffmpeg -i $1 -c:v copy -c:a aac -strict -2 -af "pan=stereo|FL=0.5*FC+0.707*FL+0.707*BL+0.5*LFE|FR=0.5*FC+0.707*FR+0.707*BR+0.5*LFE" $filename.chromecast.mp4