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# -*- Mode: Python -*-
# vi:si:et:sw=4:sts=4:ts=4
#
# gst-python - Python bindings for GStreamer
# Copyright (C) 2005 Thomas Vander Stichele
#
# This library 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 library 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 library; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
from common import gst, unittest, TestCase
import gobject
import time
import sys
class BusSignalTest(TestCase):
def testGoodConstructor(self):
loop = gobject.MainLoop()
gst.info ("creating pipeline")
pipeline = gst.parse_launch("fakesrc ! fakesink")
gst.info ("getting bus")
bus = pipeline.get_bus()
gst.info ("got bus")
gst.info("pipeliner:%d busr:%d" % (pipeline.__gstrefcount__, bus.__gstrefcount__))
self.assertEquals(bus.__gstrefcount__, 2)
self.assertEquals(pipeline.__gstrefcount__, 1)
gst.info ("about to add a watch on the bus")
watch_id = bus.connect("message", self._message_received, pipeline, loop, "one")
bus.add_signal_watch()
gst.info ("added a watch on the bus")
gst.info("pipeliner:%d busr:%d" % (pipeline.__gstrefcount__, bus.__gstrefcount__))
self.assertEquals(bus.__gstrefcount__, 3)
self.assertEquals(pipeline.__gstrefcount__, 1)
gst.info("setting to playing")
ret = pipeline.set_state(gst.STATE_PLAYING)
gst.info("set to playing %s, loop.run" % ret)
gst.info("pipeliner:%d busr:%d" % (pipeline.__gstrefcount__, bus.__gstrefcount__))
loop.run()
gst.info("pipeliner:%d busr:%d" % (pipeline.__gstrefcount__, bus.__gstrefcount__))
gst.info("setting to paused")
ret = pipeline.set_state(gst.STATE_PAUSED)
gst.info("set to paused %s, loop.run" % ret)
gst.info("pipeliner:%d busr:%d" % (pipeline.__gstrefcount__, bus.__gstrefcount__))
loop.run()
gst.info("pipeliner:%d busr:%d" % (pipeline.__gstrefcount__, bus.__gstrefcount__))
gst.info("setting to ready")
ret = pipeline.set_state(gst.STATE_READY)
gst.info("pipeliner:%d busr:%d" % (pipeline.__gstrefcount__, bus.__gstrefcount__))
gst.info("set to READY %s, loop.run" % ret)
loop.run()
gst.info("pipeliner:%d busr:%d" % (pipeline.__gstrefcount__, bus.__gstrefcount__))
gst.info("setting to NULL")
ret = pipeline.set_state(gst.STATE_NULL)
gst.info("pipeliner:%d busr:%d" % (pipeline.__gstrefcount__, bus.__gstrefcount__))
gst.info("set to NULL %s" % ret)
self.gccollect()
self.assertEquals(bus.__gstrefcount__, 3)
# FIXME: state change thread needs to die
while pipeline.__gstrefcount__ > 1:
gst.debug('waiting for pipeline refcount to drop')
time.sleep(0.1)
self.assertEquals(pipeline.__gstrefcount__, 1)
gst.info("about to remove the watch id")
gst.info("pipeliner:%d busr:%d" % (pipeline.__gstrefcount__, bus.__gstrefcount__))
bus.remove_signal_watch()
gst.info("bus watch id removed")
bus.disconnect(watch_id)
gst.info("disconnected callback")
gst.info("pipeliner:%d busr:%d" % (pipeline.__gstrefcount__, bus.__gstrefcount__))
self.gccollect()
gst.info("pipeliner:%d/%d busr:%d" % (pipeline.__gstrefcount__, pipeline.__grefcount__, bus.__gstrefcount__))
self.assertEquals(bus.__gstrefcount__, 2)
self.assertEquals(pipeline.__gstrefcount__, 1)
gst.info("removing pipeline")
del pipeline
gst.info("pipeline removed")
gst.info("busr:%d" % bus.__gstrefcount__)
self.gccollect()
# flush the bus
bus.set_flushing(True)
bus.set_flushing(False)
self.gccollect()
# FIXME: refcount is still 2
self.assertEquals(bus.__gstrefcount__, 1)
def _message_received(self, bus, message, pipeline, loop, id):
self.failUnless(isinstance(bus, gst.Bus))
self.failUnless(isinstance(message, gst.Message))
self.assertEquals(id, "one")
loop.quit()
return True
def testSyncHandlerCallbackRefcount(self):
def callback1():
pass
def callback2():
pass
bus = gst.Bus()
# set
self.failUnless(sys.getrefcount(callback1), 2)
bus.set_sync_handler(callback1)
self.failUnless(sys.getrefcount(callback1), 3)
# set again
self.failUnless(sys.getrefcount(callback1), 3)
bus.set_sync_handler(callback1)
self.failUnless(sys.getrefcount(callback1), 3)
# replace
# this erros out in gst_bus_set_sync_handler, but we need to check that
# we don't leak anyway
self.failUnless(sys.getrefcount(callback2), 2)
bus.set_sync_handler(callback2)
self.failUnless(sys.getrefcount(callback1), 2)
self.failUnless(sys.getrefcount(callback2), 3)
# unset
bus.set_sync_handler(None)
self.failUnless(sys.getrefcount(callback2), 2)
class BusAddWatchTest(TestCase):
def testADumbExample(self):
gst.info("creating pipeline")
pipeline = gst.parse_launch("fakesrc ! fakesink")
gst.info("pipeliner:%s" % pipeline.__gstrefcount__)
bus = pipeline.get_bus()
gst.info("got bus, pipeliner:%d, busr:%d" % (pipeline.__gstrefcount__,
bus.__gstrefcount__))
## watch_id = bus.add_watch(self._message_received, pipeline)
## gst.info("added watch, pipeliner:%d, busr:%d" % (pipeline.__gstrefcount__,
## bus.__gstrefcount__))
## gobject.source_remove(watch_id)
## gst.info("removed watch, pipeliner:%d, busr:%d" % (pipeline.__gstrefcount__,
## bus.__gstrefcount__))
def testGoodConstructor(self):
loop = gobject.MainLoop()
gst.info ("creating pipeline")
pipeline = gst.parse_launch("fakesrc ! fakesink")
gst.info ("getting bus")
bus = pipeline.get_bus()
gst.info ("got bus")
gst.info("pipeliner:%d busr:%d" % (pipeline.__gstrefcount__, bus.__gstrefcount__))
self.assertEquals(bus.__gstrefcount__, 2)
self.assertEquals(pipeline.__gstrefcount__, 1)
gst.info ("about to add a watch on the bus")
watch_id = bus.add_watch(self._message_received, pipeline, loop, "one")
gst.info ("added a watch on the bus")
gst.info("pipeliner:%d busr:%d" % (pipeline.__gstrefcount__, bus.__gstrefcount__))
self.assertEquals(bus.__gstrefcount__, 3)
self.assertEquals(pipeline.__gstrefcount__, 1)
gst.info("setting to playing")
ret = pipeline.set_state(gst.STATE_PLAYING)
gst.info("set to playing %s, loop.run" % ret)
gst.info("pipeliner:%d busr:%d" % (pipeline.__gstrefcount__, bus.__gstrefcount__))
loop.run()
gst.info("pipeliner:%d busr:%d" % (pipeline.__gstrefcount__, bus.__gstrefcount__))
gst.info("setting to paused")
ret = pipeline.set_state(gst.STATE_PAUSED)
gst.info("set to paused %s, loop.run" % ret)
gst.info("pipeliner:%d busr:%d" % (pipeline.__gstrefcount__, bus.__gstrefcount__))
loop.run()
gst.info("pipeliner:%d busr:%d" % (pipeline.__gstrefcount__, bus.__gstrefcount__))
gst.info("setting to ready")
ret = pipeline.set_state(gst.STATE_READY)
gst.info("pipeliner:%d busr:%d" % (pipeline.__gstrefcount__, bus.__gstrefcount__))
gst.info("set to READY %s, loop.run" % ret)
loop.run()
gst.info("pipeliner:%d busr:%d" % (pipeline.__gstrefcount__, bus.__gstrefcount__))
gst.info("setting to NULL")
ret = pipeline.set_state(gst.STATE_NULL)
gst.info("pipeliner:%d busr:%d" % (pipeline.__gstrefcount__, bus.__gstrefcount__))
gst.info("set to NULL %s" % ret)
self.gccollect()
self.assertEquals(bus.__gstrefcount__, 3)
self.assertEquals(pipeline.__gstrefcount__, 1)
gst.info("about to remove the watch id")
gst.info("pipeliner:%d busr:%d" % (pipeline.__gstrefcount__, bus.__gstrefcount__))
self.failUnless(gobject.source_remove(watch_id))
gst.info("bus watch id removed")
gst.info("pipeliner:%d busr:%d" % (pipeline.__gstrefcount__, bus.__gstrefcount__))
self.gccollect()
gst.info("pipeliner:%d/%d busr:%d" % (pipeline.__gstrefcount__, pipeline.__grefcount__, bus.__gstrefcount__))
self.assertEquals(bus.__gstrefcount__, 2)
self.assertEquals(pipeline.__gstrefcount__, 1)
gst.info("removing pipeline")
del pipeline
gst.info("pipeline removed")
gst.info("busr:%d" % bus.__gstrefcount__)
self.gccollect()
# flush the bus
bus.set_flushing(True)
bus.set_flushing(False)
self.gccollect()
# FIXME: refcount is still 2
self.assertEquals(bus.__gstrefcount__, 1)
def _message_received(self, bus, message, pipeline, loop, id):
self.failUnless(isinstance(bus, gst.Bus))
self.failUnless(isinstance(message, gst.Message))
self.assertEquals(id, "one")
# doesn't the following line stop the mainloop before the end of the state change ?
loop.quit()
return True
if __name__ == "__main__":
unittest.main()
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