Add a label to a video in Colab with ffmpeg

add-label-to-video.ipynb

#@title Add Label to a Video

def generate_label_command(inpath,outpath,label):
    # assumes 720x540 video with black border on bottom of 40px 
    cmd = "ffmpeg -y -i {0} -c:v libx264 -vf \"pad=width=720:height=580:x=0:y=1:color=black,drawtext=../../data/fonts/DMSans_18pt-Medium.ttf:text='{2}':fontcolor=white:fontsize=18:x=18:y=(h-30)\" {1}".format(inpath,outpath,label)
    return cmd

cmd = generate_label_command('infile.mp4', 'outfile.mp4','label string')
# os.system(cmd)