/usr/share/pyshared/kaa/metadata/disc/dvd.py is in python-kaa-metadata 0.7.7+svn4596-4.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 | # -*- coding: iso-8859-1 -*-
# -----------------------------------------------------------------------------
# dvdinfo.py - parse dvd title structure
# -----------------------------------------------------------------------------
# $Id: dvd.py 3621 2008-10-12 20:26:54Z dmeyer $
#
# TODO: update the ifomodule and remove the lsdvd parser
#
# -----------------------------------------------------------------------------
# kaa-Metadata - Media Metadata for Python
# Copyright (C) 2003-2006 Thomas Schueppel, Dirk Meyer
#
# First Edition: Dirk Meyer <dischi@freevo.org>
# Maintainer: Dirk Meyer <dischi@freevo.org>
#
# Please see the file AUTHORS for a complete list of authors.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of MER-
# CHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
# Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# -----------------------------------------------------------------------------
__all__ = ['Parser']
# python imports
import os
import logging
import glob
# kaa.metadata imports
import kaa.metadata.video.core as video
import kaa.metadata.audio.core as audio
# kaa.metadata.disc imports
import core
try:
import _ifoparser
except ImportError:
_ifoparser = None
# get logging object
log = logging.getLogger('metadata')
_video_height = (480, 576, 0, 576)
_video_width = (720, 704, 352, 352)
_video_fps = (0, 25.00, 0, 29.97)
_video_format = ('NTSC', 'PAL')
_video_aspect = (4.0 / 3, 16.0 / 9, 1.0, 16.0 / 9)
class DVDVideo(video.VideoStream):
def __init__(self, data):
video.VideoStream.__init__(self)
self.length = data[0]
self.fps = _video_fps[data[1]]
self.format = _video_format[data[2]]
self.aspect = _video_aspect[data[3]]
self.width = _video_width[data[4]]
self.height = _video_height[data[5]]
self.codec = 'MP2V'
class DVDAudio(audio.Audio):
_keys = audio.Audio._keys
def __init__(self, info):
audio.Audio.__init__(self)
self.id, self.language, self.codec, self.channels, self.samplerate = info
class DVDTitle(video.AVContainer):
_keys = video.AVContainer._keys + [ 'angles' ]
def __init__(self, info):
video.AVContainer.__init__(self)
self.chapters = []
pos = 0
for length in info[0]:
chapter = video.Chapter()
chapter.pos = pos
pos += length
self.chapters.append(chapter)
self.angles = info[1]
self.mime = 'video/mpeg'
self.video.append(DVDVideo(info[2:8]))
self.length = self.video[0].length
for a in info[-2]:
self.audio.append(DVDAudio(a))
for id, lang in info[-1]:
sub = video.Subtitle(lang)
sub.id = id
self.subtitles.append(sub)
class DVDInfo(core.Disc):
"""
DVD parser for DVD discs, DVD iso files and hard-disc and DVD
directory structures with a VIDEO_TS folder.
"""
_keys = core.Disc._keys + [ 'length' ]
def __init__(self, device):
core.Disc.__init__(self)
self.offset = 0
if isinstance(device, file):
self.parseDVDiso(device)
elif os.path.isdir(device):
self.parseDVDdir(device)
else:
self.parseDisc(device)
self.length = 0
first = 0
for t in self.tracks:
self.length += t.length
if not first:
first = t.length
if self.length/len(self.tracks) == first:
# badly mastered dvd
self.length = first
self.mime = 'video/dvd'
self.type = 'DVD'
self.subtype = 'video'
def _parse(self, device):
if not _ifoparser:
log.debug("kaa.metadata not compiled with DVD support")
raise core.ParseError()
info = _ifoparser.parse(device)
if not info:
raise core.ParseError()
for pos, title in enumerate(info):
ti = DVDTitle(title)
ti.trackno = pos + 1
ti.trackof = len(info)
self.tracks.append(ti)
def parseDVDdir(self, dirname):
if True not in [ os.path.isdir(x) for x in glob.iglob(dirname, 'video_ts') ] + \
[ os.path.isfile(x) for x in glob.iglob(dirname, 'video_ts.vob') ]:
raise core.ParseError()
# OK, try libdvdread
self._parse(dirname)
return 1
def parseDisc(self, device):
if self.is_disc(device) != 2:
raise core.ParseError()
# brute force reading of the device to find out if it is a DVD
f = open(device,'rb')
f.seek(32768, 0)
buffer = f.read(60000)
if buffer.find('UDF') == -1:
f.close()
raise core.ParseError()
# seems to be a DVD, read a little bit more
buffer += f.read(550000)
f.close()
if buffer.find('VIDEO_TS') == -1 and \
buffer.find('VIDEO_TS.IFO') == -1 and \
buffer.find('OSTA UDF Compliant') == -1:
raise core.ParseError()
# OK, try libdvdread
self._parse(device)
def parseDVDiso(self, f):
# brute force reading of the device to find out if it is a DVD
f.seek(32768, 0)
buffer = f.read(60000)
if buffer.find('UDF') == -1:
raise core.ParseError()
# seems to be a DVD, read a little bit more
buffer += f.read(550000)
if buffer.find('VIDEO_TS') == -1 and \
buffer.find('VIDEO_TS.IFO') == -1 and \
buffer.find('OSTA UDF Compliant') == -1:
raise core.ParseError()
# OK, try libdvdread
self._parse(f.name)
Parser = DVDInfo
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