HTML5 Video Batch

web-video.py

"""

Dependencies:

brew remove ffmpeg
brew install --with-libvpx --with-theora --with-libvorbis ffmpeg

Usage:

python web-video.py /path/to/videos

"""

import sys, os
import glob, re, subprocess, json

args = {'mp4': '-c:v libx264 -movflags +faststart',
        'ogv': '-codec:v libtheora -qscale:v 7 -codec:a libvorbis -qscale:a 5',
        'webm': '-c:v libvpx -qmin 0 -qmax 50 -crf 5 -b:v 1M -c:a libvorbis',
        'jpg': '-ss 0 -vframes 1 -vcodec mjpeg -f image2'}

def get_file_list():
    file_list = glob.glob(sys.argv[1] + '/*') + glob.glob(sys.argv[1] + '/*/**')
    video_list = []
    for file_path in file_list:
        if re.match('.*\.mov|.*\.mp4',file_path,re.IGNORECASE):
            video_list.append(file_path)
    return video_list

def is_video_upside_down(video):
    output = subprocess.check_output(['ffprobe','-v','quiet','-print_format','json','-show_streams','-select_streams','v'] + [video])
    try:
        return json.loads(output)['streams'][0]['tags']['rotate'] == '180'
    except:
        pass
    return False

def encode_video(video):
    extra_args = []
    if (is_video_upside_down(video)):
        print 'Rotating %s...' % video
        extra_args = ['-metadata:s:v','rotate=0','-vf','hflip,vflip']

    for arg in args:
        output = os.path.splitext(os.path.split(video)[1])[0] + '.' + arg
        print 'Encoding %s...' % output
        subprocess.call(['ffmpeg','-v','quiet','-i'] + [video] + extra_args + args[arg].split(' ') + [output])

if __name__ == '__main__':
    for video in get_file_list():
        encode_video(video)