Bash function to convert videos to be accepted by Twitter format requirements.

to_twitter.sh

#convert videos to be accepted by Twitter
function to_twitter() {
    filename=$(basename -- "$1")
    ext="${filename##*.}"
    filename="${filename%.*}"
    echo "Converting $1 to be compatible with the Twitter format."
    ffmpeg -i $1 -vcodec libx264 -vf "pad=ceil(iw/2)*2:ceil(ih/2)*2" -pix_fmt yuv420p -strict experimental -r 30 -t 2:20 -acodec aac -vb 1024k -minrate 1024k -maxrate 1024k -bufsize 1024k -ar 44100 -ac 2 $filename.twitter.mp4
}