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#!/usr/bin/python
# PiTiVi , Non-linear video editor
#
# :base.py
#
# Copyright (c) 2005-2008, Edward Hervey <bilboed@bilboed.com>
# 2008,2009 Alessandro Decina <alessandro.decina@collabora.co.uk>
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 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
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser 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.
import gst
import os
from pitivi.factories.base import RandomAccessSourceFactory, \
SinkFactory
from pitivi.elements.imagefreeze import ImageFreeze
from pitivi.stream import MultimediaStream, AudioStream, VideoStream
class FileSourceFactory(RandomAccessSourceFactory):
"""
Factory for local files.
@see: L{RandomAccessSourceFactory}.
"""
def __init__(self, uri, name=''):
name = name or os.path.basename(uri)
RandomAccessSourceFactory.__init__(self, uri, name)
# FIXME: backward compatibility
self.filename = uri
class PictureFileSourceFactory(FileSourceFactory):
"""
Factory for image sources.
@see: L{FileSourceFactory}, L{RandomAccessSourceFactory}.
"""
duration = 3600 * gst.SECOND
default_duration = 5 * gst.SECOND
def _makeDefaultBin(self):
return self._makeStreamBin(self.output_streams[0])
def _makeStreamBin(self, output_stream, child_bin=None):
self.debug("making picture bin for %s", self.name)
freeze = ImageFreeze()
self.debug("Chaining up with %r", freeze)
ret = FileSourceFactory._makeStreamBin(self, output_stream,
freeze)
self.debug("Returning %r", ret)
return ret
class URISinkFactory(SinkFactory):
""" A simple sink factory """
def __init__(self, uri, *args, **kwargs):
self.uri = uri
SinkFactory.__init__(self, *args, **kwargs)
self.addInputStream(MultimediaStream(caps=gst.caps_new_any()))
def _makeBin(self, input_stream=None):
sink_element = gst.element_make_from_uri(gst.URI_SINK, self.uri)
sink_element.set_property("async", False)
return sink_element
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