Split iTunes (m4a) chapters into tracks

split.py

import csv
import sys

# Reads input generated from ffprobe. Example below.
# ffprobe -v error -select_streams a:0 -show_entries stream=nb_read_frames ABGT160_847378.m4a

reader = csv.reader(sys.stdin, delimiter=',')
audio_file = sys.argv[1]

for row in reader:
    start = row[4]
    duration = float(row[6])-float(row[4])
    title = row[7]
    print "ffmpeg -ss %s -i %s -t %s -acodec copy \"%s.wav\"" % (audio_file, start, duration, title)