forked from upstream/IPod-Shuffle-4g
608 lines
24 KiB
Python
Executable file
608 lines
24 KiB
Python
Executable file
#!/usr/bin/env python2.7
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# -*- coding: utf-8 -*-
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import sys
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import struct
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import urllib
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import os
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import hashlib
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import mutagen
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import binascii
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import subprocess
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import collections
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import errno
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import argparse
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import shutil
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import re
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import tempfile
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import signal
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audio_ext = (".mp3", ".m4a", ".m4b", ".m4p", ".aa", ".wav")
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list_ext = (".pls", ".m3u")
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def make_dir_if_absent(path):
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try:
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os.makedirs(path)
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except OSError as exc:
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if exc.errno != errno.EEXIST:
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raise
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def raises_unicode_error(str):
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try:
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str.decode('utf-8').encode('latin-1')
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return False
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except (UnicodeEncodeError, UnicodeDecodeError):
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return True
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def hash_error_unicode(item):
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return "".join(["{0:02X}".format(ord(x)) for x in reversed(hashlib.md5(item).digest()[:8])])
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pass
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def validate_unicode(path):
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path_list = path.split('/')
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last_raise = False
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for i in xrange(len(path_list)):
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if raises_unicode_error(path_list[i]):
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path_list[i] = hash_error_unicode(path_list[i])
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last_raise = True
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else:
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last_raise = False
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extension = os.path.splitext(path)[1].lower()
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return "/".join(path_list) + (extension if last_raise and extension in audio_ext else '')
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def exec_exists_in_path(command):
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with open(os.devnull, 'w') as FNULL:
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try:
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subprocess.call([command], stdout=FNULL, stderr=subprocess.STDOUT)
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return True
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except OSError as e:
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return False
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class Text2Speech(object):
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valid_tts = {'pico2wave': True, 'RHVoice': True}
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@staticmethod
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def check_support():
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voiceoverAvailable = False
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# Check for pico2wave voiceover
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if not exec_exists_in_path("pico2wave"):
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Text2Speech.valid_tts['pico2wave'] = False
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print "Error executing pico2wave, voicever won't be generated using it."
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else:
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voiceoverAvailable = True
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# Check for Russian RHVoice voiceover
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if not exec_exists_in_path("RHVoice"):
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Text2Speech.valid_tts['RHVoice'] = False
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print "Warning: Error executing RHVoice, Russian voicever won't be generated."
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else:
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voiceoverAvailable = True
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# Return if we at least found one voiceover program.
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# Otherwise this will result in silent voiceover for tracks and "Playlist N" for playlists.
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return voiceoverAvailable
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@staticmethod
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def text2speech(out_wav_path, text):
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# Skip voiceover generation if a track with the same name is used.
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# This might happen with "Track001" or "01. Intro" names for example.
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if os.path.isfile(out_wav_path):
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print "Using existing", out_wav_path
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return True
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# ensure we deal with unicode later
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if not isinstance(text, unicode):
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text = unicode(text, 'utf-8')
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lang = Text2Speech.guess_lang(text)
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if lang == "ru-RU":
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return Text2Speech.rhvoice(out_wav_path, text)
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else:
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return Text2Speech.pico2wave(out_wav_path, text)
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# guess-language seems like an overkill for now
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@staticmethod
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def guess_lang(unicodetext):
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lang = 'en-GB'
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if re.search(u"[А-Яа-я]", unicodetext) is not None:
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lang = 'ru-RU'
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return lang
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@staticmethod
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def pico2wave(out_wav_path, unicodetext):
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if not Text2Speech.valid_tts['pico2wave']:
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return False
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subprocess.call(["pico2wave", "-l", "en-GB", "-w", out_wav_path, unicodetext])
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return True
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@staticmethod
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def rhvoice(out_wav_path, unicodetext):
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if not Text2Speech.valid_tts['RHVoice']:
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return False
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tmp_file = tempfile.NamedTemporaryFile(suffix=".wav", delete=False)
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tmp_file.close()
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proc = subprocess.Popen(["RHVoice", "--voice=Elena", "--variant=Russian", "--volume=100", "-o", tmp_file.name], stdin=subprocess.PIPE)
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proc.communicate(input=unicodetext.encode('utf-8'))
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# make a little bit louder to be comparable with pico2wave
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subprocess.call(["sox", tmp_file.name, out_wav_path, "norm"])
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os.remove(tmp_file.name)
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return True
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class Record(object):
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def __init__(self, parent):
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self.parent = parent
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self._struct = collections.OrderedDict([])
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self._fields = {}
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self.voiceover = parent.voiceover
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self.rename = parent.rename
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self.trackgain = parent.trackgain
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def __getitem__(self, item):
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if item not in self._struct.keys():
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raise KeyError
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return self._fields.get(item, self._struct[item][1])
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def __setitem__(self, item, value):
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self._fields[item] = value
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def construct(self):
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output = ""
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for i in self._struct.keys():
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(fmt, default) = self._struct[i]
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if fmt == "4s":
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fmt, default = "I", int(binascii.hexlify(default), 16)
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output += struct.pack("<" + fmt, self._fields.get(i, default))
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return output
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def text_to_speech(self, text, dbid, playlist = False):
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if self.voiceover:
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# Create the voiceover wav file
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fn = "".join(["{0:02X}".format(ord(x)) for x in reversed(dbid)])
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path = os.path.join(self.base, "iPod_Control", "Speakable", "Tracks" if not playlist else "Playlists", fn + ".wav")
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return Text2Speech.text2speech(path, text)
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return False
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def path_to_ipod(self, filename):
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if os.path.commonprefix([os.path.abspath(filename), self.base]) != self.base:
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raise IOError("Cannot get Ipod filename, since file is outside the IPOD path")
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baselen = len(self.base)
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if self.base.endswith(os.path.sep):
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baselen -= 1
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ipodname = "/".join(os.path.abspath(filename)[baselen:].split(os.path.sep))
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return ipodname
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def ipod_to_path(self, ipodname):
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return os.path.abspath(os.path.join(self.base, os.path.sep.join(ipodname.split("/"))))
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@property
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def shuffledb(self):
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parent = self.parent
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while parent.__class__ != Shuffler:
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parent = parent.parent
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return parent
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@property
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def base(self):
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return self.shuffledb.base
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@property
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def tracks(self):
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return self.shuffledb.tracks
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@property
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def albums(self):
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return self.shuffledb.albums
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@property
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def artists(self):
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return self.shuffledb.artists
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@property
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def lists(self):
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return self.shuffledb.lists
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class TunesSD(Record):
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def __init__(self, parent):
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Record.__init__(self, parent)
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self.track_header = TrackHeader(self)
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self.play_header = PlaylistHeader(self)
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self._struct = collections.OrderedDict([
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("header_id", ("4s", "shdb")),
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("unknown1", ("I", 0x02000003)),
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("total_length", ("I", 64)),
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("total_number_of_tracks", ("I", 0)),
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("total_number_of_playlists", ("I", 0)),
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("unknown2", ("Q", 0)),
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("max_volume", ("B", 0)),
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("voiceover_enabled", ("B", int(self.voiceover))),
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("unknown3", ("H", 0)),
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("total_tracks_without_podcasts", ("I", 0)),
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("track_header_offset", ("I", 64)),
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("playlist_header_offset", ("I", 0)),
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("unknown4", ("20s", "\x00" * 20)),
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])
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def construct(self):
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# The header is a fixed length, so no need to calculate it
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self.track_header.base_offset = 64
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track_header = self.track_header.construct()
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# The playlist offset will depend on the number of tracks
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self.play_header.base_offset = self.track_header.base_offset + len(track_header)
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play_header = self.play_header.construct(self.track_header.tracks)
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self["playlist_header_offset"] = self.play_header.base_offset
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self["total_number_of_tracks"] = self.track_header["number_of_tracks"]
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self["total_tracks_without_podcasts"] = self.track_header["number_of_tracks"]
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self["total_number_of_playlists"] = self.play_header["number_of_playlists"]
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output = Record.construct(self)
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return output + track_header + play_header
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class TrackHeader(Record):
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def __init__(self, parent):
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self.base_offset = 0
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Record.__init__(self, parent)
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self._struct = collections.OrderedDict([
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("header_id", ("4s", "shth")),
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("total_length", ("I", 0)),
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("number_of_tracks", ("I", 0)),
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("unknown1", ("Q", 0)),
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])
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def construct(self):
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self["number_of_tracks"] = len(self.tracks)
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self["total_length"] = 20 + (len(self.tracks) * 4)
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output = Record.construct(self)
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# Construct the underlying tracks
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track_chunk = ""
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for i in self.tracks:
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track = Track(self)
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print "[*] Adding track", i
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track.populate(i)
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output += struct.pack("I", self.base_offset + self["total_length"] + len(track_chunk))
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track_chunk += track.construct()
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return output + track_chunk
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class Track(Record):
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def __init__(self, parent):
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Record.__init__(self, parent)
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self._struct = collections.OrderedDict([
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("header_id", ("4s", "shtr")),
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("header_length", ("I", 0x174)),
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("start_at_pos_ms", ("I", 0)),
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("stop_at_pos_ms", ("I", 0)),
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("volume_gain", ("I", int(self.trackgain))),
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("filetype", ("I", 1)),
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("filename", ("256s", "\x00" * 256)),
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("bookmark", ("I", 0)),
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("dontskip", ("B", 1)),
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("remember", ("B", 0)),
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("unintalbum", ("B", 0)),
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("unknown", ("B", 0)),
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("pregap", ("I", 0x200)),
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("postgap", ("I", 0x200)),
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("numsamples", ("I", 0)),
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("unknown2", ("I", 0)),
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("gapless", ("I", 0)),
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("unknown3", ("I", 0)),
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("albumid", ("I", 0)),
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("track", ("H", 1)),
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("disc", ("H", 0)),
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("unknown4", ("Q", 0)),
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("dbid", ("8s", 0)),
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("artistid", ("I", 0)),
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("unknown5", ("32s", "\x00" * 32)),
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])
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def populate(self, filename):
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self["filename"] = self.path_to_ipod(filename)
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if os.path.splitext(filename)[1].lower() in (".m4a", ".m4b", ".m4p", ".aa"):
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self["filetype"] = 2
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text = os.path.splitext(os.path.basename(filename))[0]
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audio = mutagen.File(filename, easy = True)
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if audio:
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# Note: Rythmbox IPod plugin sets this value always 0.
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self["stop_at_pos_ms"] = int(audio.info.length * 1000)
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artist = audio.get("artist", [u"Unknown"])[0]
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if artist in self.artists:
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self["artistid"] = self.artists.index(artist)
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else:
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self["artistid"] = len(self.artists)
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self.artists.append(artist)
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album = audio.get("album", [u"Unknown"])[0]
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if album in self.albums:
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self["albumid"] = self.albums.index(album)
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else:
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self["albumid"] = len(self.albums)
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self.albums.append(album)
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if audio.get("title", "") and audio.get("artist", ""):
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text = u" - ".join(audio.get("title", u"") + audio.get("artist", u""))
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# Handle the VoiceOverData
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if isinstance(text, unicode):
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text = text.encode('utf-8', 'ignore')
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self["dbid"] = hashlib.md5(text).digest()[:8] #pylint: disable-msg=E1101
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self.text_to_speech(text, self["dbid"])
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class PlaylistHeader(Record):
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def __init__(self, parent):
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self.base_offset = 0
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Record.__init__(self, parent)
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self._struct = collections.OrderedDict([
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("header_id", ("4s", "shph")),
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("total_length", ("I", 0)),
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("number_of_playlists", ("I", 0)),
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("number_of_non_podcast_lists", ("2s", "\xFF\xFF")),
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("number_of_master_lists", ("2s", "\x01\x00")),
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("number_of_non_audiobook_lists", ("2s", "\xFF\xFF")),
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("unknown2", ("2s", "\x00" * 2)),
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])
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def construct(self, tracks): #pylint: disable-msg=W0221
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# Build the master list
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masterlist = Playlist(self)
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print "[+] Adding master playlist"
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masterlist.set_master(tracks)
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chunks = [masterlist.construct(tracks)]
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# Build all the remaining playlists
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playlistcount = 1
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for i in self.lists:
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playlist = Playlist(self)
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print "[+] Adding playlist", i
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playlist.populate(i)
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construction = playlist.construct(tracks)
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if playlist["number_of_songs"] > 0:
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playlistcount += 1
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chunks += [construction]
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else:
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print "Error: Playlist does not contain a single track. Skipping playlist."
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self["number_of_playlists"] = playlistcount
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self["total_length"] = 0x14 + (self["number_of_playlists"] * 4)
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# Start the header
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output = Record.construct(self)
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offset = self.base_offset + self["total_length"]
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for i in range(len(chunks)):
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output += struct.pack("I", offset)
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offset += len(chunks[i])
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return output + "".join(chunks)
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class Playlist(Record):
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def __init__(self, parent):
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self.listtracks = []
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Record.__init__(self, parent)
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self._struct = collections.OrderedDict([
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("header_id", ("4s", "shpl")),
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("total_length", ("I", 0)),
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("number_of_songs", ("I", 0)),
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("number_of_nonaudio", ("I", 0)),
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("dbid", ("8s", "\x00" * 8)),
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("listtype", ("I", 2)),
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("unknown1", ("16s", "\x00" * 16))
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])
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def set_master(self, tracks):
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# By default use "All Songs" builtin voiceover (dbid all zero)
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# Else generate alternative "All Songs" to fit the speaker voice of other playlists
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if self.voiceover and Text2Speech.valid_tts['pico2wave']:
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self["dbid"] = hashlib.md5("masterlist").digest()[:8] #pylint: disable-msg=E1101
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self.text_to_speech("All songs", self["dbid"], True)
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self["listtype"] = 1
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self.listtracks = tracks
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def populate_m3u(self, data):
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listtracks = []
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for i in data:
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if not i.startswith("#"):
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path = i.strip()
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if self.rename:
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path = validate_unicode(path)
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listtracks.append(path)
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return listtracks
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def populate_pls(self, data):
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sorttracks = []
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for i in data:
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dataarr = i.strip().split("=", 1)
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if dataarr[0].lower().startswith("file"):
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num = int(dataarr[0][4:])
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filename = urllib.unquote(dataarr[1]).strip()
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if filename.lower().startswith('file://'):
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filename = filename[7:]
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if self.rename:
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filename = validate_unicode(filename)
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sorttracks.append((num, filename))
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listtracks = [ x for (_, x) in sorted(sorttracks) ]
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return listtracks
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def remove_relatives(self, relative, filename):
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base = os.path.dirname(os.path.abspath(filename))
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if not os.path.exists(relative):
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relative = os.path.join(base, relative)
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fullPath = relative
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ipodpath = self.parent.parent.parent.path
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relPath = fullPath[fullPath.index(ipodpath)+len(ipodpath)+1:].lower()
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fullPath = os.path.abspath(os.path.join(ipodpath, relPath))
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return fullPath
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def populate(self, filename):
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with open(filename, 'rb') as f:
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data = f.readlines()
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extension = os.path.splitext(filename)[1].lower()
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if extension == '.pls':
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self.listtracks = self.populate_pls(data)
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elif extension == '.m3u':
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self.listtracks = self.populate_m3u(data)
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# Ensure all paths are not relative to the playlist file
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for i in range(len(self.listtracks)):
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self.listtracks[i] = self.remove_relatives(self.listtracks[i], filename)
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# Handle the VoiceOverData
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text = os.path.splitext(os.path.basename(filename))[0]
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self["dbid"] = hashlib.md5(text).digest()[:8] #pylint: disable-msg=E1101
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self.text_to_speech(text, self["dbid"], True)
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def construct(self, tracks): #pylint: disable-msg=W0221
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self["total_length"] = 44 + (4 * len(self.listtracks))
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self["number_of_songs"] = 0
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chunks = ""
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for i in self.listtracks:
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path = self.ipod_to_path(i)
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position = -1
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try:
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position = tracks.index(path)
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except:
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# Print an error if no track was found.
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# Empty playlists are handeled in the PlaylistHeader class.
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print "Error: Could not find track \"" + path + "\"."
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print "Maybe its an invalid FAT filesystem name. Please fix your playlist. Skipping track."
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if position > -1:
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chunks += struct.pack("I", position)
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self["number_of_songs"] += 1
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self["number_of_nonaudio"] = self["number_of_songs"]
|
||
|
||
output = Record.construct(self)
|
||
return output + chunks
|
||
|
||
class Shuffler(object):
|
||
def __init__(self, path, voiceover=True, rename=False, trackgain=0):
|
||
self.path, self.base = self.determine_base(path)
|
||
self.tracks = []
|
||
self.albums = []
|
||
self.artists = []
|
||
self.lists = []
|
||
self.tunessd = None
|
||
self.voiceover = voiceover
|
||
self.rename = rename
|
||
self.trackgain = trackgain
|
||
|
||
def initialize(self):
|
||
# remove existing voiceover files (they are either useless or will be overwritten anyway)
|
||
for dirname in ('iPod_Control/Speakable/Playlists', 'iPod_Control/Speakable/Tracks'):
|
||
shutil.rmtree(os.path.join(self.path, dirname), ignore_errors=True)
|
||
for dirname in ('iPod_Control/iTunes', 'iPod_Control/Music', 'iPod_Control/Speakable/Playlists', 'iPod_Control/Speakable/Tracks'):
|
||
make_dir_if_absent(os.path.join(self.path, dirname))
|
||
|
||
def dump_state(self):
|
||
print "Shuffle DB state"
|
||
print "Tracks", self.tracks
|
||
print "Albums", self.albums
|
||
print "Artists", self.artists
|
||
print "Playlists", self.lists
|
||
|
||
def determine_base(self, path):
|
||
base = os.path.abspath(path)
|
||
# while not os.path.ismount(base):
|
||
# base = os.path.dirname(base)
|
||
return base, base
|
||
|
||
def populate(self):
|
||
self.tunessd = TunesSD(self)
|
||
for (dirpath, dirnames, filenames) in os.walk(self.path):
|
||
dirnames.sort()
|
||
# Ignore the speakable directory and any hidden directories
|
||
if "ipod_control/speakable" not in dirpath.lower() and "/." not in dirpath.lower():
|
||
for filename in sorted(filenames, key = lambda x: x.lower()):
|
||
fullPath = os.path.abspath(os.path.join(dirpath, filename))
|
||
relPath = fullPath[fullPath.index(self.path)+len(self.path)+1:].lower()
|
||
fullPath = os.path.abspath(os.path.join(self.path, relPath));
|
||
if os.path.splitext(filename)[1].lower() in (".mp3", ".m4a", ".m4b", ".m4p", ".aa", ".wav"):
|
||
self.tracks.append(fullPath)
|
||
if os.path.splitext(filename)[1].lower() in (".pls", ".m3u"):
|
||
self.lists.append(os.path.abspath(os.path.join(dirpath, filename)))
|
||
|
||
def write_database(self):
|
||
with open(os.path.join(self.base, "iPod_Control", "iTunes", "iTunesSD"), "wb") as f:
|
||
f.write(self.tunessd.construct())
|
||
|
||
#
|
||
# Read all files from the directory
|
||
# Construct the appropriate iTunesDB file
|
||
# Construct the appropriate iTunesSD file
|
||
# http://shuffle3db.wikispaces.com/iTunesSD3gen
|
||
# Use SVOX pico2wave and RHVoice to produce voiceover data
|
||
#
|
||
|
||
def check_unicode(path):
|
||
ret_flag = False # True if there is a recognizable file within this level
|
||
for item in os.listdir(path):
|
||
if os.path.isfile(os.path.join(path, item)):
|
||
if os.path.splitext(item)[1].lower() in audio_ext+list_ext:
|
||
ret_flag = True
|
||
if raises_unicode_error(item):
|
||
src = os.path.join(path, item)
|
||
dest = os.path.join(path, hash_error_unicode(item)) + os.path.splitext(item)[1].lower()
|
||
print 'Renaming %s -> %s' % (src, dest)
|
||
os.rename(src, dest)
|
||
else:
|
||
ret_flag = (check_unicode(os.path.join(path, item)) or ret_flag)
|
||
if ret_flag and raises_unicode_error(item):
|
||
src = os.path.join(path, item)
|
||
new_name = hash_error_unicode(item)
|
||
dest = os.path.join(path, new_name)
|
||
print 'Renaming %s -> %s' % (src, dest)
|
||
os.rename(src, dest)
|
||
return ret_flag
|
||
|
||
def nonnegative_int(string):
|
||
try:
|
||
intval = int(string)
|
||
except ValueError:
|
||
raise argparse.ArgumentTypeError("'%s' must be an integer" % string)
|
||
|
||
if intval < 0 or intval > 99:
|
||
raise argparse.ArgumentTypeError("Track gain value should be in range 0-99")
|
||
return intval
|
||
|
||
def checkPathValidity(path):
|
||
if not os.path.isdir(result.path):
|
||
print "Error finding IPod directory. Maybe it is not connected or mounted?"
|
||
sys.exit(1)
|
||
|
||
if not os.access(result.path, os.W_OK):
|
||
print 'Unable to get write permissions in the IPod directory'
|
||
sys.exit(1)
|
||
|
||
def handle_interrupt(signal, frame):
|
||
print "Interrupt detected, exiting..."
|
||
sys.exit(1)
|
||
|
||
if __name__ == '__main__':
|
||
signal.signal(signal.SIGINT, handle_interrupt)
|
||
parser = argparse.ArgumentParser()
|
||
parser.add_argument('--disable-voiceover', action='store_true', help='Disable voiceover feature')
|
||
parser.add_argument('--rename-unicode', action='store_true', help='Rename files causing unicode errors, will do minimal required renaming')
|
||
parser.add_argument('--track-gain', type=nonnegative_int, default=0, help='Specify volume gain (0-99) for all tracks; 0 (default) means no gain and is usually fine; e.g. 60 is very loud even on minimal player volume')
|
||
parser.add_argument('path', help='Path to the IPod\'s root directory')
|
||
result = parser.parse_args()
|
||
|
||
checkPathValidity(result.path)
|
||
|
||
if result.rename_unicode:
|
||
check_unicode(result.path)
|
||
|
||
if not result.disable_voiceover and not Text2Speech.check_support():
|
||
print "Error: Did not find any voiceover program. Voiceover disabled."
|
||
result.disable_voiceover = True
|
||
|
||
shuffle = Shuffler(result.path, voiceover=not result.disable_voiceover, rename=result.rename_unicode, trackgain=result.track_gain)
|
||
shuffle.initialize()
|
||
shuffle.populate()
|
||
shuffle.write_database()
|