config.py

   1 import ConfigParser, os
   2 import re
   3 import random
   4 import string
   5 from ConfigParser import NoOptionError
   6
   7 BLACKLIST_169 = ('540', '649')
   8
   9 config = ConfigParser.ConfigParser()
  10 p = os.path.dirname(__file__)
  11 config_file = os.path.join(p, 'pyTivo.conf')
  12 config.read(config_file)
  13
  14 def reset():
  15     global config
  16     del config
  17     config = ConfigParser.ConfigParser()
  18     config.read(config_file)
  19
  20 def getGUID():
  21     if config.has_option('Server', 'GUID'):
  22         return config.get('Server', 'GUID')
  23     else:
  24         return ''.join([random.choice(string.letters) for i in range(10)])
  25     return guid
  26
  27 def getTivoUsername():
  28     return config.get('Server', 'tivo_username')
  29
  30 def getTivoPassword():
  31     return config.get('Server', 'tivo_password')
  32
  33 def getBeaconAddresses():
  34     if config.has_option('Server', 'beacon'):
  35         beacon_ips = config.get('Server', 'beacon')
  36     else:
  37         beacon_ips = '255.255.255.255'
  38     return beacon_ips
  39
  40 def getPort():
  41     return config.get('Server', 'Port')
  42
  43 def get169Setting(tsn):
  44     if not tsn:
  45         return True
  46
  47     if config.has_section('_tivo_' + tsn):
  48         if config.has_option('_tivo_' + tsn, 'aspect169'):
  49             try:
  50                 return config.getboolean('_tivo_' + tsn, 'aspect169')
  51             except ValueError:
  52                 pass
  53
  54     if tsn[:3] in BLACKLIST_169:
  55         return False
  56
  57     return True
  58
  59 def getShares(tsn=''):
  60     shares = [(section, dict(config.items(section)))
  61               for section in config.sections()
  62               if not(section.startswith('_tivo_') or section == 'Server')]
  63
  64     if config.has_section('_tivo_' + tsn):
  65         if config.has_option('_tivo_' + tsn, 'shares'):
  66             # clean up leading and trailing spaces & make sure ref is valid
  67             tsnshares = []
  68             for x in config.get('_tivo_' + tsn, 'shares').split(','):
  69                 y = x.lstrip().rstrip()
  70                 if config.has_section(y):
  71                     tsnshares += [(y, dict(config.items(y)))]
  72             if tsnshares:
  73                 shares = tsnshares
  74
  75     for name, data in shares:
  76         if not data.get('auto_subshares', 'False').lower() == 'true':
  77             continue
  78
  79         base_path = data['path']
  80         try:
  81             for item in os.listdir(base_path):
  82                 item_path = os.path.join(base_path, item)
  83                 if not os.path.isdir(item_path):
  84                     continue
  85
  86                 new_name = name + '/' + item
  87                 new_data = dict(data)
  88                 new_data['path'] = item_path
  89
  90                 shares.append((new_name, new_data))
  91         except:
  92             pass
  93
  94     return shares
  95
  96 def getDebug(ref):
  97     if config.has_option('Server', 'debug'):
  98         try:
  99             return str2tuple(config.get('Server', 'debug')+',,')[ref]
 100         except NoOptionError:
 101             pass
 102     return str2tuple('False,,')[ref]
 103
 104 def getHack83():
 105     try:
 106         debug = config.get('Server', 'hack83')
 107         if debug.lower() == 'true':
 108             return True
 109         else:
 110             return False
 111     except NoOptionError:
 112         return False
 113
 114 def getOptres(tsn = None):
 115     if tsn and config.has_section('_tivo_' + tsn):
 116         try:
 117             return config.getboolean('_tivo_' + tsn, 'optres')
 118         except NoOptionError, ValueError:
 119             pass
 120     try:
 121         return config.getboolean('Server', 'optres')
 122     except NoOptionError, ValueError:
 123         return False
 124
 125 def getPixelAR(ref):
 126     if config.has_option('Server', 'par'):
 127         try:
 128             return (True, config.getfloat('Server', 'par'))[ref]
 129         except NoOptionError, ValueError:
 130             pass
 131     return (False, 1.0)[ref]
 132
 133 def get(section, key):
 134     return config.get(section, key)
 135
 136 def getFFmpegTemplate(tsn):
 137     if tsn and config.has_section('_tivo_' + tsn):
 138         try:
 139             return config.get('_tivo_' + tsn, 'ffmpeg_tmpl', raw=True)
 140         except NoOptionError:
 141             pass
 142     try:
 143         return config.get('Server', 'ffmpeg_tmpl', raw=True)
 144     except NoOptionError: #default
 145         return '%(video_codec)s %(video_fps)s %(video_br)s %(max_video_br)s \
 146                 %(buff_size)s %(aspect_ratio)s -comment pyTivo.py %(audio_br)s \
 147                 %(audio_fr)s %(audio_ch)s %(audio_codec)s %(ffmpeg_pram)s %(format)s'
 148
 149 def getFFmpegPrams(tsn):
 150     if tsn and config.has_section('_tivo_' + tsn):
 151         try:
 152             return config.get('_tivo_' + tsn, 'ffmpeg_pram', raw=True)
 153         except NoOptionError:
 154             pass
 155     try:
 156         return config.get('Server', 'ffmpeg_pram', raw=True)
 157     except NoOptionError:
 158         return None
 159
 160 def isHDtivo(tsn):  # tsn's of High Definition Tivo's
 161     return tsn != '' and tsn[:3] in ['648', '652']
 162
 163 def getValidWidths():
 164     return [1920, 1440, 1280, 720, 704, 544, 480, 352]
 165
 166 def getValidHeights():
 167     return [1080, 720, 480] # Technically 240 is also supported
 168
 169 # Return the number in list that is nearest to x
 170 # if two values are equidistant, return the larger
 171 def nearest(x, list):
 172     return reduce(lambda a, b: closest(x, a, b), list)
 173
 174 def closest(x, a, b):
 175     if abs(x - a) < abs(x - b) or (abs(x - a) == abs(x - b) and a > b):
 176         return a
 177     else:
 178         return b
 179
 180 def nearestTivoHeight(height):
 181     return nearest(height, getValidHeights())
 182
 183 def nearestTivoWidth(width):
 184     return nearest(width, getValidWidths())
 185
 186 def getTivoHeight(tsn):
 187     if tsn and config.has_section('_tivo_' + tsn):
 188         try:
 189             height = config.getint('_tivo_' + tsn, 'height')
 190             return nearestTivoHeight(height)
 191         except NoOptionError:
 192             pass
 193     try:
 194         height = config.getint('Server', 'height')
 195         return nearestTivoHeight(height)
 196     except NoOptionError: #defaults for S3/S2 TiVo
 197         if isHDtivo(tsn):
 198             return 720
 199         else:
 200             return 480
 201
 202 def getTivoWidth(tsn):
 203     if tsn and config.has_section('_tivo_' + tsn):
 204         try:
 205             width = config.getint('_tivo_' + tsn, 'width')
 206             return nearestTivoWidth(width)
 207         except NoOptionError:
 208             pass
 209     try:
 210         width = config.getint('Server', 'width')
 211         return nearestTivoWidth(width)
 212     except NoOptionError: #defaults for S3/S2 TiVo
 213         if isHDtivo(tsn):
 214             return 1280
 215         else:
 216             return 544
 217
 218 def getAudioBR(tsn = None):
 219     #convert to non-zero multiple of 64 to ensure ffmpeg compatibility
 220     #compare audio_br to max_audio_br and return lowest
 221     if tsn and config.has_section('_tivo_' + tsn):
 222         try:
 223             audiobr = int(max(int(strtod(config.get('_tivo_' + tsn, 'audio_br'))/1000), 64)/64)*64
 224             return str(min(audiobr, getMaxAudioBR(tsn))) + 'k'
 225         except NoOptionError:
 226             pass
 227     try:
 228         audiobr = int(max(int(strtod(config.get('Server', 'audio_br'))/1000), 64)/64)*64
 229         return str(min(audiobr, getMaxAudioBR(tsn))) + 'k'
 230     except NoOptionError:
 231         return str(min(384, getMaxAudioBR(tsn))) + 'k'
 232
 233 def getVideoBR(tsn = None):
 234     if tsn and config.has_section('_tivo_' + tsn):
 235         try:
 236             return config.get('_tivo_' + tsn, 'video_br')
 237         except NoOptionError:
 238             pass
 239     try:
 240         return config.get('Server', 'video_br')
 241     except NoOptionError: #defaults for S3/S2 TiVo
 242         if isHDtivo(tsn):
 243             return '8192k'
 244         else:
 245             return '4096K'
 246
 247 def getMaxVideoBR():
 248     try:
 249         return str(int(strtod(config.get('Server', 'max_video_br'))/1000)) + 'k'
 250     except NoOptionError: #default to 17Mi
 251         return '17408k'
 252
 253 def getBuffSize():
 254     try:
 255         return str(int(strtod(config.get('Server', 'bufsize'))))
 256     except NoOptionError: #default 1024k
 257         return '1024k'
 258
 259 def getMaxAudioBR(tsn = None):
 260     #convert to non-zero multiple of 64 for ffmpeg compatibility
 261     if tsn and config.has_section('_tivo_' + tsn):
 262         try:
 263             return int(int(strtod(config.get('_tivo_' + tsn, 'max_audio_br'))/1000)/64)*64
 264         except NoOptionError:
 265             pass
 266     try:
 267         return int(int(strtod(config.get('Server', 'max_audio_br'))/1000)/64)*64
 268     except NoOptionError:
 269         return int(448) #default to 448
 270
 271 def getAudioCodec(tsn = None):
 272     if tsn and config.has_section('_tivo_' + tsn):
 273         try:
 274             return config.get('_tivo_' + tsn, 'audio_codec')
 275         except NoOptionError:
 276             pass
 277     try:
 278         return config.get('Server', 'audio_codec')
 279     except NoOptionError:
 280         return None
 281
 282 def getAudioCH(tsn = None):
 283     if tsn and config.has_section('_tivo_' + tsn):
 284         try:
 285             return config.get('_tivo_' + tsn, 'audio_ch')
 286         except NoOptionError:
 287             pass
 288     try:
 289         return config.get('Server', 'audio_ch')
 290     except NoOptionError:
 291         return None
 292
 293 def getAudioFR(tsn = None):
 294     if tsn and config.has_section('_tivo_' + tsn):
 295         try:
 296             return config.get('_tivo_' + tsn, 'audio_fr')
 297         except NoOptionError:
 298             pass
 299     try:
 300         return config.get('Server', 'audio_fr')
 301     except NoOptionError:
 302         return None
 303
 304 def getVideoFPS(tsn = None):
 305     if tsn and config.has_section('_tivo_' + tsn):
 306         try:
 307             return config.get('_tivo_' + tsn, 'video_fps')
 308         except NoOptionError:
 309             pass
 310     try:
 311         return config.get('Server', 'video_fps')
 312     except NoOptionError:
 313         return None
 314
 315 def getVideoCodec(tsn = None):
 316     if tsn and config.has_section('_tivo_' + tsn):
 317         try:
 318             return config.get('_tivo_' + tsn, 'video_codec')
 319         except NoOptionError:
 320             pass
 321     try:
 322         return config.get('Server', 'video_codec')
 323     except NoOptionError:
 324         return None
 325
 326 def getFormat(tsn = None):
 327     if tsn and config.has_section('_tivo_' + tsn):
 328         try:
 329             return config.get('_tivo_' + tsn, 'force_format')
 330         except NoOptionError:
 331             pass
 332     try:
 333         return config.get('Server', 'force_format')
 334     except NoOptionError:
 335         return None
 336
 337 def str2tuple(s):
 338     items = s.split(',')
 339     L = [x.strip() for x in items]
 340     return tuple(L)
 341
 342 # Parse a bitrate using the SI/IEEE suffix values as if by ffmpeg
 343 # For example, 2K==2000, 2Ki==2048, 2MB==16000000, 2MiB==16777216
 344 # Algorithm: http://svn.mplayerhq.hu/ffmpeg/trunk/libavcodec/eval.c
 345 def strtod(value):
 346     prefixes = {'y': -24, 'z': -21, 'a': -18, 'f': -15, 'p': -12,
 347                 'n': -9,  'u': -6,  'm': -3,  'c': -2,  'd': -1,
 348                 'h': 2,   'k': 3,   'K': 3,   'M': 6,   'G': 9,
 349                 'T': 12,  'P': 15,  'E': 18,  'Z': 21,  'Y': 24}
 350     p = re.compile(r'^(\d+)(?:([yzafpnumcdhkKMGTPEZY])(i)?)?([Bb])?$')
 351     m = p.match(value)
 352     if m is None:
 353         raise SyntaxError('Invalid bit value syntax')
 354     (coef, prefix, power, byte) = m.groups()
 355     if prefix is None:
 356         value = float(coef)
 357     else:
 358         exponent = float(prefixes[prefix])
 359         if power == 'i':
 360             # Use powers of 2
 361             value = float(coef) * pow(2.0, exponent / 0.3)
 362         else:
 363             # Use powers of 10
 364             value = float(coef) * pow(10.0, exponent)
 365     if byte == 'B': # B == Byte, b == bit
 366         value *= 8;
 367     return value