/usr/lib/python3/dist-packages/dvdvideo/media.py is in python3-dvdvideo 0.20140413.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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@copyright: 2009 Bastian Blank <waldi@debian.org>
@license: GNU GPL-3
"""
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 3 as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY 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, see <http://www.gnu.org/licenses/>.
import collections.abc
import os
import stat
from .volume import VmgUdf, VtsUdf
class MediaUdf(collections.abc.Mapping):
class File:
def __init__(self, filename):
f = open(filename, 'rb')
self.close = f.close
self.read = f.read
self.seek = f.seek
self.tell = f.tell
def read_sector(self, count, **kw):
return self.read(count * 2048)
def seek_sector(self, offset, **kw):
self.seek(offset * 2048)
def tell_sector(self):
return self.tell() // 2048
def __init__(self, filename):
from .udf.media import Media
try:
from .libdvdcss import DvdCssFile
except ImportError:
DvdCssFile = self.File
s = os.stat(filename)
if stat.S_ISREG(s.st_mode):
f = self.File(filename)
elif stat.S_ISBLK(s.st_mode):
f = DvdCssFile(filename)
else:
raise RuntimeError
self.read = f.read_sector
self.seek = f.seek_sector
self.tell = f.tell_sector
self._file = f
self.udf = Media(f)
self.video_dir = self.udf.volume.partitions[0].fileset.root.tree['VIDEO_TS'].entry.tree
def __getitem__(self, name):
f = self.video_dir[name]
if len(f.entry.ad) > 1:
raise NotImplementedError
return f
def __iter__(self):
return iter(self.video_dir)
def __len__(self):
return len(self.video_dir)
def vmg(self):
return VmgUdf(self)
def vts(self, titleset):
return VtsUdf(self, titleset)
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