Source code for pytomo.kaa_metadata.video.core

# -*- coding: iso-8859-1 -*-
# -----------------------------------------------------------------------------
# core.py - basic video class
# -----------------------------------------------------------------------------
# $Id: core.py 3654 2008-10-26 20:05:40Z dmeyer $
#
# -----------------------------------------------------------------------------
# kaa-Metadata - Media Metadata for Python
# Copyright (C) 2003-2006 Thomas Schueppel, Dirk Meyer
#
# First Edition: Thomas Schueppel <stain@acm.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
#
# -----------------------------------------------------------------------------

from __future__ import absolute_import

from ..core import (ParseError, Media, MEDIA_VIDEO, MEDIA_SUBTITLE,
                    MEDIA_CHAPTER, MEDIA_AV, MEDIA_AUDIO, MEDIA_DISC,
                    Collection)

from ..audio.core import Audio as AudioStream


VIDEOCORE = ['length', 'encoder', 'bitrate', 'samplerate', 'codec', 'format',
             'samplebits', 'width', 'height', 'fps', 'aspect', 'trackno', 'fourcc', 'id' ]

AVCORE    = ['length', 'encoder', 'trackno', 'trackof', 'copyright', 'product',
             'genre', 'writer', 'producer', 'studio', 'rating', 'starring', 'thumbnail',
             'delay', 'image', 'video', 'audio', 'subtitles', 'chapters', 'software' ]

[docs]class VideoStream(Media): """ Video Tracks in a Multiplexed Container. """ _keys = Media._keys + VIDEOCORE media = MEDIA_VIDEO
[docs]class Chapter(Media): """ Chapter in a Multiplexed Container. """ _keys = ['name', 'pos', 'enabled', 'id'] media = MEDIA_CHAPTER def __init__(self, name=None, pos=0): Media.__init__(self) self.name = name self.pos = pos self.enabled = True
[docs]class Subtitle(Media): """ Subtitle Tracks in a Multiplexed Container. """ _keys = ['language', 'trackno', 'title', 'id'] media = MEDIA_SUBTITLE def __init__(self, language=None): Media.__init__(self) self.language = language
[docs]class AVContainer(Media): """ Container for Audio and Video streams. This is the Container Type for all media, that contain more than one stream. """ _keys = Media._keys + AVCORE media = MEDIA_AV def __init__(self): Media.__init__(self) self.audio = [] self.video = [] self.subtitles = [] self.chapters = [] def _finalize(self): """ Correct same data based on specific rules """ Media._finalize(self) if not self.length and len(self.video) and self.video[0].length: self.length = 0 # Length not specified for container, so use the largest length # of its tracks as container length. for track in self.video + self.audio: if track.length: self.length = max(self.length, track.length)