Download and Convert youtube "favorite" videos to MP3.

youtube2mp3.py

#! /usr/bin/env python

""" youtube2mp3 - Download and Convert youtube "favorite" videos to MP3.

Determine "favorited" vids, download them as FLVs, extract/ save its
MP3, meanwhile fixing up file names.

Assumes most (or all) of the things you "favorite" on Youtube are some
sort of musical recording. I've found a lot of old jazz tunes on Youtube
that I can't otherwise find recordings for. Down side is that the
quality of the MP3s is usually mediocre at best.

This could use a lot of improvement, but works okay for common cases as-is.

Demonstrates simple usage of Youtube API and conversion/extraction with
clive/ffmpeg.

Dependencies:
    libgdata (apt)
    clive    (apt, almost)
    fnfix    (https://gist.github.com/719728)

Note that clive on Ubuntu (lucid) is not working, so need to get an
updated version, due to YT's recent changes.
"""

__author__    = 'Micah Elliott http://MicahElliott.com'
__version__   = '0.1'
__license__   = 'WTFPL http://sam.zoy.org/wtfpl/'

### -------------------------------------------------------------------

import os, sys, optparse, subprocess, string
from gdata.youtube.service import YouTubeService
from fnfix import beautify, UGLYCHARS

username = 'MicahElliott'

def get_faves():
    """From a page-limited feed fetches all pages into returned list.
    """
    svc = YouTubeService()
    feed = svc.GetUserFavoritesFeed(username)
    vids = []
    while feed:
        vids.extend( [vid for vid in feed.entry] )
        #print vids[0]
        feed = svc.GetNext(feed)
    print 'Number of favorites:', len(vids)
    return vids

vids = get_faves()

table = string.maketrans('', '')
def fix_title(bad_title):
    return beautify(bad_title, table, UGLYCHARS)

#urls_titles = [ (vid.link[0].href, vid.title.text)
urls_titles = [ (vid.link[0].href, fix_title(vid.title.text))
    for vid in vids ]

#for (u, t) in (urls_titles): print t
#sys.exit()

for (u, t) in (urls_titles):
    print 'thinking about:', t
    if os.path.isfile(t+'.flv'):
        print 'Already had:', t+'.flv\n'
    else:
        clive = ['clive', '-O', '%s.flv'%t, '%s'%u]
        print "Using 'clive' to pull '%s' from youtube with:" % t
        print ' '.join(clive)
        try:
            code = subprocess.call(clive)
            pass
        except OSError, e:
            print e
    #coder = 'ffmpeg -i "%s.flv" -f mp3 -vn -acodec copy "%s.mp3"' % (t, t)
    coder = [
        'ffmpeg', '-y', '-i', "%s.flv"%t, '-f', 'mp3',
        '-vn', '-acodec', 'copy', "%s.mp3"%t ]
    print "Converting '%s.mp3' from FLV to MP3 with:" % t
    print ' '.join(coder)
    subprocess.call(coder)
    #sys.exit()