config.py

   1 import ConfigParser, os
   2 import re
   3 from ConfigParser import NoOptionError
   4
   5 config = ConfigParser.ConfigParser()
   6 p = os.path.dirname(__file__)
   7 config_file = os.path.join(p, 'pyTivo.conf')
   8 config.read(config_file)
   9
  10 def reset():
  11     global config
  12     del config
  13     config = ConfigParser.ConfigParser()
  14     config.read(config_file)
  15
  16 def getGUID():
  17     if config.has_option('Server', 'GUID'):
  18         guid = config.get('Server', 'GUID')
  19     else:
  20         guid = '123456'
  21     return guid
  22
  23 def getBeaconAddresses():
  24     if config.has_option('Server', 'beacon'):
  25         beacon_ips = config.get('Server', 'beacon')
  26     else:
  27         beacon_ips = '255.255.255.255'
  28     return beacon_ips
  29
  30 def getPort():
  31     return config.get('Server', 'Port')
  32
  33 def get169Blacklist(tsn):  # tivo does not pad 16:9 video
  34     return tsn != '' and tsn[:3] in ('540')
  35
  36 def get169Letterbox(tsn):  # tivo pads 16:9 video for 4:3 display
  37     return tsn != '' and tsn[:3] in ('649')
  38
  39 def get169Setting(tsn):
  40     if not tsn:
  41         return True
  42
  43     if config.has_section('_tivo_' + tsn):
  44         if config.has_option('_tivo_' + tsn, 'aspect169'):
  45             try:
  46                 return config.getboolean('_tivo_' + tsn, 'aspect169')
  47             except ValueError:
  48                 pass
  49
  50     if get169Blacklist(tsn) or get169Letterbox(tsn):
  51         return False
  52
  53     return True
  54
  55 def getShares(tsn=''):
  56     shares = [(section, dict(config.items(section)))
  57               for section in config.sections()
  58               if not(section.startswith('_tivo_') or section == 'Server')]
  59
  60     if config.has_section('_tivo_' + tsn):
  61         if config.has_option('_tivo_' + tsn, 'shares'):
  62             # clean up leading and trailing spaces & make sure ref is valid
  63             tsnshares = []
  64             for x in config.get('_tivo_' + tsn, 'shares').split(','):
  65                 y = x.lstrip().rstrip()
  66                 if config.has_section(y):
  67                     tsnshares += [(y, dict(config.items(y)))]
  68             if tsnshares:
  69                 shares = tsnshares
  70
  71     for name, data in shares:
  72         if not data.get('auto_subshares', 'False').lower() == 'true':
  73             continue
  74
  75         base_path = data['path']
  76         try:
  77             for item in os.listdir(base_path):
  78                 item_path = os.path.join(base_path, item)
  79                 if not os.path.isdir(item_path) or item.startswith('.'):
  80                     continue
  81
  82                 new_name = name + '/' + item
  83                 new_data = dict(data)
  84                 new_data['path'] = item_path
  85
  86                 shares.append((new_name, new_data))
  87         except:
  88             pass
  89
  90     return shares
  91
  92 def getDebug(ref):
  93     if config.has_option('Server', 'debug'):
  94         try:
  95             return str2tuple(config.get('Server', 'debug')+',,')[ref]
  96         except NoOptionError:
  97             pass
  98     return str2tuple('False,,')[ref]
  99
 100 def getHack83():
 101     try:
 102         debug = config.get('Server', 'hack83')
 103         if debug.lower() == 'true':
 104             return True
 105         else:
 106             return False
 107     except NoOptionError:
 108         return False
 109
 110 def getOptres(tsn = None):
 111     if tsn and config.has_section('_tivo_' + tsn):
 112         try:
 113             return config.getboolean('_tivo_' + tsn, 'optres')
 114         except NoOptionError, ValueError:
 115             pass
 116     try:
 117         return config.getboolean('Server', 'optres')
 118     except NoOptionError, ValueError:
 119         return False
 120
 121 def getPixelAR(ref):
 122     if config.has_option('Server', 'par'):
 123         try:
 124             return (True, config.getfloat('Server', 'par'))[ref]
 125         except NoOptionError, ValueError:
 126             pass
 127     return (False, 1.0)[ref]
 128
 129 def get(section, key):
 130     return config.get(section, key)
 131
 132 def getFFmpegTemplate(tsn):
 133     if tsn and config.has_section('_tivo_' + tsn):
 134         try:
 135             return config.get('_tivo_' + tsn, 'ffmpeg_tmpl', raw=True)
 136         except NoOptionError:
 137             pass
 138     try:
 139         return config.get('Server', 'ffmpeg_tmpl', raw=True)
 140     except NoOptionError: #default
 141         return '%(video_codec)s %(video_fps)s %(video_br)s %(max_video_br)s \
 142                 %(buff_size)s %(aspect_ratio)s -comment pyTivo.py %(audio_br)s \
 143                 %(audio_fr)s %(audio_ch)s %(audio_codec)s %(ffmpeg_pram)s %(format)s'
 144
 145 def getFFmpegPrams(tsn):
 146     if tsn and config.has_section('_tivo_' + tsn):
 147         try:
 148             return config.get('_tivo_' + tsn, 'ffmpeg_pram', raw=True)
 149         except NoOptionError:
 150             pass
 151     try:
 152         return config.get('Server', 'ffmpeg_pram', raw=True)
 153     except NoOptionError:
 154         return None
 155
 156 def isHDtivo(tsn):  # tsn's of High Definition Tivo's
 157     return tsn != '' and tsn[:3] in ['648', '652']
 158
 159 def getValidWidths():
 160     return [1920, 1440, 1280, 720, 704, 544, 480, 352]
 161
 162 def getValidHeights():
 163     return [1080, 720, 480] # Technically 240 is also supported
 164
 165 # Return the number in list that is nearest to x
 166 # if two values are equidistant, return the larger
 167 def nearest(x, list):
 168     return reduce(lambda a, b: closest(x, a, b), list)
 169
 170 def closest(x, a, b):
 171     if abs(x - a) < abs(x - b) or (abs(x - a) == abs(x - b) and a > b):
 172         return a
 173     else:
 174         return b
 175
 176 def nearestTivoHeight(height):
 177     return nearest(height, getValidHeights())
 178
 179 def nearestTivoWidth(width):
 180     return nearest(width, getValidWidths())
 181
 182 def getTivoHeight(tsn):
 183     if tsn and config.has_section('_tivo_' + tsn):
 184         try:
 185             height = config.getint('_tivo_' + tsn, 'height')
 186             return nearestTivoHeight(height)
 187         except NoOptionError:
 188             pass
 189     try:
 190         height = config.getint('Server', 'height')
 191         return nearestTivoHeight(height)
 192     except NoOptionError: #defaults for S3/S2 TiVo
 193         if isHDtivo(tsn):
 194             return 720
 195         else:
 196             return 480
 197
 198 def getTivoWidth(tsn):
 199     if tsn and config.has_section('_tivo_' + tsn):
 200         try:
 201             width = config.getint('_tivo_' + tsn, 'width')
 202             return nearestTivoWidth(width)
 203         except NoOptionError:
 204             pass
 205     try:
 206         width = config.getint('Server', 'width')
 207         return nearestTivoWidth(width)
 208     except NoOptionError: #defaults for S3/S2 TiVo
 209         if isHDtivo(tsn):
 210             return 1280
 211         else:
 212             return 544
 213
 214 def getAudioBR(tsn = None):
 215     #convert to non-zero multiple of 64 to ensure ffmpeg compatibility
 216     #compare audio_br to max_audio_br and return lowest
 217     if tsn and config.has_section('_tivo_' + tsn):
 218         try:
 219             audiobr = int(max(int(strtod(config.get('_tivo_' + tsn, 'audio_br'))/1000), 64)/64)*64
 220             return str(min(audiobr, getMaxAudioBR(tsn))) + 'k'
 221         except NoOptionError:
 222             pass
 223     try:
 224         audiobr = int(max(int(strtod(config.get('Server', 'audio_br'))/1000), 64)/64)*64
 225         return str(min(audiobr, getMaxAudioBR(tsn))) + 'k'
 226     except NoOptionError:
 227         return str(min(384, getMaxAudioBR(tsn))) + 'k'
 228
 229 def getVideoBR(tsn = None):
 230     if tsn and config.has_section('_tivo_' + tsn):
 231         try:
 232             return config.get('_tivo_' + tsn, 'video_br')
 233         except NoOptionError:
 234             pass
 235     try:
 236         return config.get('Server', 'video_br')
 237     except NoOptionError: #defaults for S3/S2 TiVo
 238         if isHDtivo(tsn):
 239             return '8192k'
 240         else:
 241             return '4096K'
 242
 243 def getMaxVideoBR():
 244     try:
 245         return str(int(strtod(config.get('Server', 'max_video_br'))/1000)) + 'k'
 246     except NoOptionError: #default to 30000k
 247         return '30000k'
 248
 249 def getVideoPCT():
 250     try:
 251         return config.getfloat('Server', 'video_pct')
 252     except NoOptionError:
 253         return 70
 254
 255 def getBuffSize():
 256     try:
 257         return str(int(strtod(config.get('Server', 'bufsize'))))
 258     except NoOptionError: #default 1024k
 259         return '1024k'
 260
 261 def getMaxAudioBR(tsn = None):
 262     #convert to non-zero multiple of 64 for ffmpeg compatibility
 263     if tsn and config.has_section('_tivo_' + tsn):
 264         try:
 265             return int(int(strtod(config.get('_tivo_' + tsn, 'max_audio_br'))/1000)/64)*64
 266         except NoOptionError:
 267             pass
 268     try:
 269         return int(int(strtod(config.get('Server', 'max_audio_br'))/1000)/64)*64
 270     except NoOptionError:
 271         return int(448) #default to 448
 272
 273 def getAudioCodec(tsn = None):
 274     if tsn and config.has_section('_tivo_' + tsn):
 275         try:
 276             return config.get('_tivo_' + tsn, 'audio_codec')
 277         except NoOptionError:
 278             pass
 279     try:
 280         return config.get('Server', 'audio_codec')
 281     except NoOptionError:
 282         return None
 283
 284 def getAudioCH(tsn = None):
 285     if tsn and config.has_section('_tivo_' + tsn):
 286         try:
 287             return config.get('_tivo_' + tsn, 'audio_ch')
 288         except NoOptionError:
 289             pass
 290     try:
 291         return config.get('Server', 'audio_ch')
 292     except NoOptionError:
 293         return None
 294
 295 def getAudioFR(tsn = None):
 296     if tsn and config.has_section('_tivo_' + tsn):
 297         try:
 298             return config.get('_tivo_' + tsn, 'audio_fr')
 299         except NoOptionError:
 300             pass
 301     try:
 302         return config.get('Server', 'audio_fr')
 303     except NoOptionError:
 304         return None
 305
 306 def getCopyTS(tsn = None):
 307     if tsn and config.has_section('_tivo_' + tsn):
 308         if config.has_option('_tivo_' + tsn, 'copy_ts'):
 309             try:
 310                 return config.get('_tivo_' + tsn, 'copy_ts')
 311             except NoOptionError, ValueError:
 312                 pass
 313     if config.has_option('Server', 'copy_ts'):
 314         try:
 315             return config.get('Server', 'copy_ts')
 316         except NoOptionError, ValueError:
 317             pass
 318     return 'none'
 319
 320 def getVideoFPS(tsn = None):
 321     if tsn and config.has_section('_tivo_' + tsn):
 322         try:
 323             return config.get('_tivo_' + tsn, 'video_fps')
 324         except NoOptionError:
 325             pass
 326     try:
 327         return config.get('Server', 'video_fps')
 328     except NoOptionError:
 329         return None
 330
 331 def getVideoCodec(tsn = None):
 332     if tsn and config.has_section('_tivo_' + tsn):
 333         try:
 334             return config.get('_tivo_' + tsn, 'video_codec')
 335         except NoOptionError:
 336             pass
 337     try:
 338         return config.get('Server', 'video_codec')
 339     except NoOptionError:
 340         return None
 341
 342 def getFormat(tsn = None):
 343     if tsn and config.has_section('_tivo_' + tsn):
 344         try:
 345             return config.get('_tivo_' + tsn, 'force_format')
 346         except NoOptionError:
 347             pass
 348     try:
 349         return config.get('Server', 'force_format')
 350     except NoOptionError:
 351         return None
 352
 353 def str2tuple(s):
 354     items = s.split(',')
 355     L = [x.strip() for x in items]
 356     return tuple(L)
 357
 358 # Parse a bitrate using the SI/IEEE suffix values as if by ffmpeg
 359 # For example, 2K==2000, 2Ki==2048, 2MB==16000000, 2MiB==16777216
 360 # Algorithm: http://svn.mplayerhq.hu/ffmpeg/trunk/libavcodec/eval.c
 361 def strtod(value):
 362     prefixes = {'y': -24, 'z': -21, 'a': -18, 'f': -15, 'p': -12,
 363                 'n': -9,  'u': -6,  'm': -3,  'c': -2,  'd': -1,
 364                 'h': 2,   'k': 3,   'K': 3,   'M': 6,   'G': 9,
 365                 'T': 12,  'P': 15,  'E': 18,  'Z': 21,  'Y': 24}
 366     p = re.compile(r'^(\d+)(?:([yzafpnumcdhkKMGTPEZY])(i)?)?([Bb])?$')
 367     m = p.match(value)
 368     if m is None:
 369         raise SyntaxError('Invalid bit value syntax')
 370     (coef, prefix, power, byte) = m.groups()
 371     if prefix is None:
 372         value = float(coef)
 373     else:
 374         exponent = float(prefixes[prefix])
 375         if power == 'i':
 376             # Use powers of 2
 377             value = float(coef) * pow(2.0, exponent / 0.3)
 378         else:
 379             # Use powers of 10
 380             value = float(coef) * pow(10.0, exponent)
 381     if byte == 'B': # B == Byte, b == bit
 382         value *= 8;
 383     return value