chapters.py

import sys
from mutagen.id3 import ID3, CTOC, CHAP, TIT2, CTOCFlags
from mutagen import File

def main():
    print "hi"
    # target_file = "ns61-ian.mp3"
    target_file = "pk43.mp3"

    print_tags(target_file)

    audio = ID3(target_file)
    audio.add(
        CTOC(element_id=u"toc", flags=CTOCFlags.TOP_LEVEL | CTOCFlags.ORDERED,
            child_element_ids=[u"chp1", "chp2"],
            sub_frames=[
                TIT2(text=[u"I'm a TOC"]),
            ]))
    audio.add(
        CHAP(element_id=u"chp1", start_time=0, end_time=42000,
            sub_frames=[
                TIT2(text=[u"I'm the first chapter"]),
            ]))
    audio.add(
        CHAP(element_id=u"chp2", start_time=42000, end_time=84000,
            sub_frames=[
                TIT2(text=[u"I'm the second chapter"]),
            ]))


    audio.save()

    print_tags(target_file)
    
    pass

def print_tags(file):
    id3_tags = File(file)
    id3_keys = id3_tags.keys()
    for key in id3_keys:
        print key, id3_tags[key]

if __name__ == '__main__':
    sys.exit(main())