config.py

   1 import ConfigParser, os
   2 import re
   3 from ConfigParser import NoOptionError
   4
   5 BLACKLIST_169 = ('540', '649')
   6
   7 config = ConfigParser.ConfigParser()
   8 p = os.path.dirname(__file__)
   9 config_file = os.path.join(p, 'pyTivo.conf')
  10 config.read(config_file)
  11
  12 def reset():
  13     global config
  14     del config
  15     config = ConfigParser.ConfigParser()
  16     config.read(config_file)
  17
  18 def getGUID():
  19     if config.has_option('Server', 'GUID'):
  20         guid = config.get('Server', 'GUID')
  21     else:
  22         guid = '123456'
  23     return guid
  24
  25 def getTivoUsername():
  26     return config.get('Server', 'tivo_username')
  27
  28 def getTivoPassword():
  29     return config.get('Server', 'tivo_password')
  30
  31 def getBeaconAddresses():
  32     if config.has_option('Server', 'beacon'):
  33         beacon_ips = config.get('Server', 'beacon')
  34     else:
  35         beacon_ips = '255.255.255.255'
  36     return beacon_ips
  37
  38 def getPort():
  39     return config.get('Server', 'Port')
  40
  41 def get169Setting(tsn):
  42     if not tsn:
  43         return True
  44
  45     if config.has_section('_tivo_' + tsn):
  46         if config.has_option('_tivo_' + tsn, 'aspect169'):
  47             try:
  48                 return config.getboolean('_tivo_' + tsn, 'aspect169')
  49             except ValueError:
  50                 pass
  51
  52     if tsn[:3] in BLACKLIST_169:
  53         return False
  54
  55     return True
  56
  57 def getShares(tsn=''):
  58     shares = [(section, dict(config.items(section)))
  59               for section in config.sections()
  60               if not(section.startswith('_tivo_') or section == 'Server')]
  61
  62     if config.has_section('_tivo_' + tsn):
  63         if config.has_option('_tivo_' + tsn, 'shares'):
  64             # clean up leading and trailing spaces & make sure ref is valid
  65             tsnshares = []
  66             for x in config.get('_tivo_' + tsn, 'shares').split(','):
  67                 y = x.lstrip().rstrip()
  68                 if config.has_section(y):
  69                     tsnshares += [(y, dict(config.items(y)))]
  70             if tsnshares:
  71                 shares = tsnshares
  72
  73     for name, data in shares:
  74         if not data.get('auto_subshares', 'False').lower() == 'true':
  75             continue
  76
  77         base_path = data['path']
  78         try:
  79             for item in os.listdir(base_path):
  80                 item_path = os.path.join(base_path, item)
  81                 if not os.path.isdir(item_path):
  82                     continue
  83
  84                 new_name = name + '/' + item
  85                 new_data = dict(data)
  86                 new_data['path'] = item_path
  87
  88                 shares.append((new_name, new_data))
  89         except:
  90             pass
  91
  92     return shares
  93
  94 def getDebug(ref):
  95     if config.has_option('Server', 'debug'):
  96         try:
  97             return str2tuple(config.get('Server', 'debug')+',,')[ref]
  98         except NoOptionError:
  99             pass
 100     return str2tuple('False,,')[ref]
 101
 102 def getHack83():
 103     try:
 104         debug = config.get('Server', 'hack83')
 105         if debug.lower() == 'true':
 106             return True
 107         else:
 108             return False
 109     except NoOptionError:
 110         return False
 111
 112 def getOptres(tsn = None):
 113     if tsn and config.has_section('_tivo_' + tsn):
 114         try:
 115             return config.getboolean('_tivo_' + tsn, 'optres')
 116         except NoOptionError, ValueError:
 117             pass
 118     try:
 119         return config.getboolean('Server', 'optres')
 120     except NoOptionError, ValueError:
 121         return False
 122
 123 def getPixelAR(ref):
 124     if config.has_option('Server', 'par'):
 125         try:
 126             return (True, config.getfloat('Server', 'par'))[ref]
 127         except NoOptionError, ValueError:
 128             pass
 129     return (False, 1.0)[ref]
 130
 131 def get(section, key):
 132     return config.get(section, key)
 133
 134 def getFFmpegTemplate(tsn):
 135     if tsn and config.has_section('_tivo_' + tsn):
 136         try:
 137             return config.get('_tivo_' + tsn, 'ffmpeg_tmpl', raw=True)
 138         except NoOptionError:
 139             pass
 140     try:
 141         return config.get('Server', 'ffmpeg_tmpl', raw=True)
 142     except NoOptionError: #default
 143         return '%(video_codec)s %(video_fps)s %(video_br)s %(max_video_br)s \
 144                 %(buff_size)s %(aspect_ratio)s -comment pyTivo.py %(audio_br)s \
 145                 %(audio_fr)s %(audio_ch)s %(audio_codec)s %(ffmpeg_pram)s %(format)s'
 146
 147 def getFFmpegPrams(tsn):
 148     if tsn and config.has_section('_tivo_' + tsn):
 149         try:
 150             return config.get('_tivo_' + tsn, 'ffmpeg_pram', raw=True)
 151         except NoOptionError:
 152             pass
 153     try:
 154         return config.get('Server', 'ffmpeg_pram', raw=True)
 155     except NoOptionError:
 156         return None
 157
 158 def isHDtivo(tsn):  # tsn's of High Definition Tivo's
 159     return tsn != '' and tsn[:3] in ['648', '652']
 160
 161 def getValidWidths():
 162     return [1920, 1440, 1280, 720, 704, 544, 480, 352]
 163
 164 def getValidHeights():
 165     return [1080, 720, 480] # Technically 240 is also supported
 166
 167 # Return the number in list that is nearest to x
 168 # if two values are equidistant, return the larger
 169 def nearest(x, list):
 170     return reduce(lambda a, b: closest(x, a, b), list)
 171
 172 def closest(x, a, b):
 173     if abs(x - a) < abs(x - b) or (abs(x - a) == abs(x - b) and a > b):
 174         return a
 175     else:
 176         return b
 177
 178 def nearestTivoHeight(height):
 179     return nearest(height, getValidHeights())
 180
 181 def nearestTivoWidth(width):
 182     return nearest(width, getValidWidths())
 183
 184 def getTivoHeight(tsn):
 185     if tsn and config.has_section('_tivo_' + tsn):
 186         try:
 187             height = config.getint('_tivo_' + tsn, 'height')
 188             return nearestTivoHeight(height)
 189         except NoOptionError:
 190             pass
 191     try:
 192         height = config.getint('Server', 'height')
 193         return nearestTivoHeight(height)
 194     except NoOptionError: #defaults for S3/S2 TiVo
 195         if isHDtivo(tsn):
 196             return 720
 197         else:
 198             return 480
 199
 200 def getTivoWidth(tsn):
 201     if tsn and config.has_section('_tivo_' + tsn):
 202         try:
 203             width = config.getint('_tivo_' + tsn, 'width')
 204             return nearestTivoWidth(width)
 205         except NoOptionError:
 206             pass
 207     try:
 208         width = config.getint('Server', 'width')
 209         return nearestTivoWidth(width)
 210     except NoOptionError: #defaults for S3/S2 TiVo
 211         if isHDtivo(tsn):
 212             return 1280
 213         else:
 214             return 544
 215
 216 def getAudioBR(tsn = None):
 217     #convert to non-zero multiple of 64 to ensure ffmpeg compatibility
 218     #compare audio_br to max_audio_br and return lowest
 219     if tsn and config.has_section('_tivo_' + tsn):
 220         try:
 221             audiobr = int(max(int(strtod(config.get('_tivo_' + tsn, 'audio_br'))/1000), 64)/64)*64
 222             return str(min(audiobr, getMaxAudioBR(tsn))) + 'k'
 223         except NoOptionError:
 224             pass
 225     try:
 226         audiobr = int(max(int(strtod(config.get('Server', 'audio_br'))/1000), 64)/64)*64
 227         return str(min(audiobr, getMaxAudioBR(tsn))) + 'k'
 228     except NoOptionError:
 229         return str(min(384, getMaxAudioBR(tsn))) + 'k'
 230
 231 def getVideoBR(tsn = None):
 232     if tsn and config.has_section('_tivo_' + tsn):
 233         try:
 234             return config.get('_tivo_' + tsn, 'video_br')
 235         except NoOptionError:
 236             pass
 237     try:
 238         return config.get('Server', 'video_br')
 239     except NoOptionError: #defaults for S3/S2 TiVo
 240         if isHDtivo(tsn):
 241             return '8192k'
 242         else:
 243             return '4096K'
 244
 245 def getMaxVideoBR():
 246     try:
 247         return str(int(strtod(config.get('Server', 'max_video_br'))/1000)) + 'k'
 248     except NoOptionError: #default to 17Mi
 249         return '17408k'
 250
 251 def getBuffSize():
 252     try:
 253         return str(int(strtod(config.get('Server', 'bufsize'))))
 254     except NoOptionError: #default 1024k
 255         return '1024k'
 256
 257 def getMaxAudioBR(tsn = None):
 258     #convert to non-zero multiple of 64 for ffmpeg compatibility
 259     if tsn and config.has_section('_tivo_' + tsn):
 260         try:
 261             return int(int(strtod(config.get('_tivo_' + tsn, 'max_audio_br'))/1000)/64)*64
 262         except NoOptionError:
 263             pass
 264     try:
 265         return int(int(strtod(config.get('Server', 'max_audio_br'))/1000)/64)*64
 266     except NoOptionError:
 267         return int(448) #default to 448
 268
 269 def getAudioCodec(tsn = None):
 270     if tsn and config.has_section('_tivo_' + tsn):
 271         try:
 272             return config.get('_tivo_' + tsn, 'audio_codec')
 273         except NoOptionError:
 274             pass
 275     try:
 276         return config.get('Server', 'audio_codec')
 277     except NoOptionError:
 278         return None
 279
 280 def getAudioCH(tsn = None):
 281     if tsn and config.has_section('_tivo_' + tsn):
 282         try:
 283             return config.get('_tivo_' + tsn, 'audio_ch')
 284         except NoOptionError:
 285             pass
 286     try:
 287         return config.get('Server', 'audio_ch')
 288     except NoOptionError:
 289         return None
 290
 291 def getAudioFR(tsn = None):
 292     if tsn and config.has_section('_tivo_' + tsn):
 293         try:
 294             return config.get('_tivo_' + tsn, 'audio_fr')
 295         except NoOptionError:
 296             pass
 297     try:
 298         return config.get('Server', 'audio_fr')
 299     except NoOptionError:
 300         return None
 301
 302 def getVideoFPS(tsn = None):
 303     if tsn and config.has_section('_tivo_' + tsn):
 304         try:
 305             return config.get('_tivo_' + tsn, 'video_fps')
 306         except NoOptionError:
 307             pass
 308     try:
 309         return config.get('Server', 'video_fps')
 310     except NoOptionError:
 311         return None
 312
 313 def getVideoCodec(tsn = None):
 314     if tsn and config.has_section('_tivo_' + tsn):
 315         try:
 316             return config.get('_tivo_' + tsn, 'video_codec')
 317         except NoOptionError:
 318             pass
 319     try:
 320         return config.get('Server', 'video_codec')
 321     except NoOptionError:
 322         return None
 323
 324 def getFormat(tsn = None):
 325     if tsn and config.has_section('_tivo_' + tsn):
 326         try:
 327             return config.get('_tivo_' + tsn, 'force_format')
 328         except NoOptionError:
 329             pass
 330     try:
 331         return config.get('Server', 'force_format')
 332     except NoOptionError:
 333         return None
 334
 335 def str2tuple(s):
 336     items = s.split(',')
 337     L = [x.strip() for x in items]
 338     return tuple(L)
 339
 340 # Parse a bitrate using the SI/IEEE suffix values as if by ffmpeg
 341 # For example, 2K==2000, 2Ki==2048, 2MB==16000000, 2MiB==16777216
 342 # Algorithm: http://svn.mplayerhq.hu/ffmpeg/trunk/libavcodec/eval.c
 343 def strtod(value):
 344     prefixes = {'y': -24, 'z': -21, 'a': -18, 'f': -15, 'p': -12,
 345                 'n': -9,  'u': -6,  'm': -3,  'c': -2,  'd': -1,
 346                 'h': 2,   'k': 3,   'K': 3,   'M': 6,   'G': 9,
 347                 'T': 12,  'P': 15,  'E': 18,  'Z': 21,  'Y': 24}
 348     p = re.compile(r'^(\d+)(?:([yzafpnumcdhkKMGTPEZY])(i)?)?([Bb])?$')
 349     m = p.match(value)
 350     if m is None:
 351         raise SyntaxError('Invalid bit value syntax')
 352     (coef, prefix, power, byte) = m.groups()
 353     if prefix is None:
 354         value = float(coef)
 355     else:
 356         exponent = float(prefixes[prefix])
 357         if power == 'i':
 358             # Use powers of 2
 359             value = float(coef) * pow(2.0, exponent / 0.3)
 360         else:
 361             # Use powers of 10
 362             value = float(coef) * pow(10.0, exponent)
 363     if byte == 'B': # B == Byte, b == bit
 364         value *= 8;
 365     return value