diff options
| -rw-r--r-- | ChangeLog | 13 | ||||
| -rw-r--r-- | testsuite/Makefile.am | 1 | ||||
| -rw-r--r-- | testsuite/test_caps.py | 150 | ||||
| -rw-r--r-- | testsuite/test_element.py | 3 | ||||
| -rw-r--r-- | testsuite/test_event.py | 116 | ||||
| -rw-r--r-- | testsuite/test_pad.py | 34 | ||||
| -rw-r--r-- | testsuite/test_pipeline.py | 13 | ||||
| -rw-r--r-- | testsuite/test_probe.py | 102 | ||||
| -rw-r--r-- | testsuite/test_struct.py | 22 |
9 files changed, 192 insertions, 262 deletions
@@ -1,5 +1,18 @@ 2005-09-01 Thomas Vander Stichele <thomas at apestaart dot org> + * testsuite/Makefile.am: + * testsuite/test_caps.py: + * testsuite/test_element.py: + * testsuite/test_event.py: + * testsuite/test_pad.py: + * testsuite/test_pipeline.py: + * testsuite/test_struct.py: + updated/bits commented out + * testsuite/test_probe.py: + removed + +2005-09-01 Thomas Vander Stichele <thomas at apestaart dot org> + * gst/gst-types.defs: * gst/gstbuffer.override: * gst/pygstminiobject.c: (pygstminiobject_new_noref): diff --git a/testsuite/Makefile.am b/testsuite/Makefile.am index b349fc3..1076e57 100644 --- a/testsuite/Makefile.am +++ b/testsuite/Makefile.am @@ -25,7 +25,6 @@ tests = \ test_interface.py \ test_pad.py \ test_pipeline.py \ - test_probe.py \ test_registry.py \ test_struct.py \ test_xml.py diff --git a/testsuite/test_caps.py b/testsuite/test_caps.py index f12e1f9..c6810a7 100644 --- a/testsuite/test_caps.py +++ b/testsuite/test_caps.py @@ -25,82 +25,82 @@ from common import gst, unittest class CapsTest(unittest.TestCase): def setUp(self): - self.caps = gst.caps_from_string('video/x-raw-yuv,width=10,framerate=5.0;video/x-raw-rgb,width=15,framerate=10.0') - self.structure = self.caps[0] - self.any = gst.Caps("ANY") - self.empty = gst.Caps() + self.caps = gst.caps_from_string('video/x-raw-yuv,width=10,framerate=5.0;video/x-raw-rgb,width=15,framerate=10.0') + self.structure = self.caps[0] + self.any = gst.Caps("ANY") + self.empty = gst.Caps() def testCapsMime(self): - mime = self.structure.get_name() - assert mime == 'video/x-raw-yuv' + mime = self.structure.get_name() + assert mime == 'video/x-raw-yuv' def testCapsList(self): - 'check if we can access Caps as a list' - structure = self.caps[0] - mime = structure.get_name() - assert mime == 'video/x-raw-yuv' - structure = self.caps[1] - mime = structure.get_name() - assert mime == 'video/x-raw-rgb' + 'check if we can access Caps as a list' + structure = self.caps[0] + mime = structure.get_name() + assert mime == 'video/x-raw-yuv' + structure = self.caps[1] + mime = structure.get_name() + assert mime == 'video/x-raw-rgb' def testCapsConstructEmpty(self): caps = gst.Caps() - assert isinstance(caps, gst.Caps) + assert isinstance(caps, gst.Caps) def testCapsConstructFromString(self): caps = gst.Caps('video/x-raw-yuv,width=10') - assert isinstance(caps, gst.Caps) + assert isinstance(caps, gst.Caps) assert len(caps) == 1 - assert isinstance(caps[0], gst.Structure) + assert isinstance(caps[0], gst.Structure) assert caps[0].get_name() == 'video/x-raw-yuv' - assert isinstance(caps[0]['width'], int) + assert isinstance(caps[0]['width'], int) assert caps[0]['width'] == 10 def testCapsConstructFromStructure(self): struct = gst.structure_from_string('video/x-raw-yuv,width=10') caps = gst.Caps(struct) - assert isinstance(caps, gst.Caps) + assert isinstance(caps, gst.Caps) assert len(caps) == 1 - assert isinstance(caps[0], gst.Structure) + assert isinstance(caps[0], gst.Structure) assert caps[0].get_name() == 'video/x-raw-yuv' - assert isinstance(caps[0]['width'], int) + assert isinstance(caps[0]['width'], int) assert caps[0]['width'] == 10 def testCapsConstructFromStructures(self): struct1 = gst.structure_from_string('video/x-raw-yuv,width=10') struct2 = gst.structure_from_string('video/x-raw-rgb,height=20.0') caps = gst.Caps(struct1, struct2) - assert isinstance(caps, gst.Caps) + assert isinstance(caps, gst.Caps) assert len(caps) == 2 struct = caps[0] - assert isinstance(struct, gst.Structure), struct + assert isinstance(struct, gst.Structure), struct assert struct.get_name() == 'video/x-raw-yuv', struct.get_name() assert struct.has_key('width') - assert isinstance(struct['width'], int) + assert isinstance(struct['width'], int) assert struct['width'] == 10 struct = caps[1] - assert isinstance(struct, gst.Structure), struct + assert isinstance(struct, gst.Structure), struct assert struct.get_name() == 'video/x-raw-rgb', struct.get_name() assert struct.has_key('height') - assert isinstance(struct['height'], float) + assert isinstance(struct['height'], float) assert struct['height'] == 20.0 def testCapsRefernceStructs(self): 'test that shows why it\'s not a good idea to use structures by reference' - caps = gst.Caps('hi/mom,width=0') - structure = caps[0] - del caps - assert structure['width'] == 0 - + caps = gst.Caps('hi/mom,width=0') + structure = caps[0] + del caps + assert structure['width'] == 0 + def testCapsStructureChange(self): - 'test if changing the structure of the caps works by reference' - assert self.structure['width'] == 10 + 'test if changing the structure of the caps works by reference' + assert self.structure['width'] == 10 self.structure['width'] = 5 - assert self.structure['width'] == 5.0 - # check if we changed the caps as well - structure = self.caps[0] - assert structure['width'] == 5.0 + assert self.structure['width'] == 5.0 + # check if we changed the caps as well + structure = self.caps[0] + assert structure['width'] == 5.0 def testCapsBadConstructor(self): struct = gst.structure_from_string('video/x-raw-yuv,width=10') @@ -115,53 +115,53 @@ class CapsTest(unittest.TestCase): def testTrueFalse(self): 'test that comparisons using caps work the intended way' - assert self.any # not empty even though it has no structures - assert not self.empty - assert not gst.Caps('EMPTY') # also empty - assert gst.Caps('your/mom') + assert self.any # not empty even though it has no structures + assert not self.empty + assert not gst.Caps('EMPTY') # also empty + assert gst.Caps('your/mom') def testComparisons(self): - assert self.empty < self.any - assert self.empty < self.structure - assert self.empty < self.caps - assert self.caps < self.any - assert self.empty <= self.empty - assert self.caps <= self.caps - assert self.caps <= self.any - assert self.empty == "EMPTY" - assert self.caps != self.any - assert self.empty != self.any - assert self.any > self.empty - assert self.any >= self.empty + assert self.empty < self.any + assert self.empty < self.structure + assert self.empty < self.caps + assert self.caps < self.any + assert self.empty <= self.empty + assert self.caps <= self.caps + assert self.caps <= self.any + assert self.empty == "EMPTY" + assert self.caps != self.any + assert self.empty != self.any + assert self.any > self.empty + assert self.any >= self.empty def testFilters(self): - name = 'video/x-raw-yuv' - filtercaps = gst.Caps(*[struct for struct in self.caps if struct.get_name() == name]) - intersection = self.caps & 'video/x-raw-yuv' - assert filtercaps == intersection + name = 'video/x-raw-yuv' + filtercaps = gst.Caps(*[struct for struct in self.caps if struct.get_name() == name]) + intersection = self.caps & 'video/x-raw-yuv' + assert filtercaps == intersection def doSubtract(self, set, subset): - '''mimic the test in GStreamer core's testsuite/caps/subtract.c''' - assert not set - set - assert not subset - subset - assert not subset - set - test = set - subset - assert test - test2 = test | subset - test = test2 - set - assert not test - #our own extensions foolow here - assert subset == set & subset - assert set == set | subset - assert set - subset == set ^ subset + '''mimic the test in GStreamer core's testsuite/caps/subtract.c''' + assert not set - set + assert not subset - subset + assert not subset - set + test = set - subset + assert test + test2 = test | subset + test = test2 - set + assert not test + #our own extensions foolow here + assert subset == set & subset + assert set == set | subset + assert set - subset == set ^ subset def testSubtract(self): - self.doSubtract( - gst.Caps ("some/mime, _int = [ 1, 2 ], list = { \"A\", \"B\", \"C\" }"), - gst.Caps ("some/mime, _int = 1, list = \"A\"")) - self.doSubtract( - gst.Caps ("some/mime, _double = (double) 1.0; other/mime, _int = { 1, 2 }"), - gst.Caps ("some/mime, _double = (double) 1.0")) + self.doSubtract( + gst.Caps ("some/mime, _int = [ 1, 2 ], list = { \"A\", \"B\", \"C\" }"), + gst.Caps ("some/mime, _int = 1, list = \"A\"")) + self.doSubtract( + gst.Caps ("some/mime, _double = (double) 1.0; other/mime, _int = { 1, 2 }"), + gst.Caps ("some/mime, _double = (double) 1.0")) if __name__ == "__main__": diff --git a/testsuite/test_element.py b/testsuite/test_element.py index 13e2cf4..36f96b7 100644 --- a/testsuite/test_element.py +++ b/testsuite/test_element.py @@ -101,7 +101,8 @@ class FakeSinkTest(ElementTest): assert self.element.set_state(old) assert self.element.get_state() == old - self.element.connect('state-change', state_change_cb) +# FIXME: replace with messages +# self.element.connect('state-change', state_change_cb) assert self.element.set_state(new) assert self.element.get_state() == new diff --git a/testsuite/test_event.py b/testsuite/test_event.py index 601c4c3..ffcbb16 100644 --- a/testsuite/test_event.py +++ b/testsuite/test_event.py @@ -30,65 +30,67 @@ class EventTest(unittest.TestCase): self.sink = pipeline.get_by_name('sink') pipeline.set_state(gst.STATE_PLAYING) -## def testEventEmpty(self): -## event = gst.Event(gst.EVENT_EMPTY) -## self.sink.send_event(event) +# def testEventEmpty(self): +# event = gst.Event(gst.EVENT_EMPTY) +# self.sink.send_event(event) - def testEventSeek(self): - event = gst.event_new_seek(gst.SEEK_METHOD_CUR, 0) - assert event - self.sink.send_event(event) +# def testEventSeek(self): +# event = gst.event_new_seek(gst.SEEK_METHOD_CUR, 0) +# assert event +# self.sink.send_event(event) -class EventFileSrcTest(unittest.TestCase): - filename = '/tmp/gst-python-test-file' - def setUp(self): - if os.path.exists(self.filename): - os.remove(self.filename) - open(self.filename, 'w').write(''.join(map(str, range(10)))) - - self.pipeline = gst.parse_launch('filesrc name=source location=%s blocksize=1 ! fakesink signal-handoffs=1 name=sink' % self.filename) - self.source = self.pipeline.get_by_name('source') - self.sink = self.pipeline.get_by_name('sink') - self.sink.connect('handoff', self.handoff_cb) - self.bus = self.pipeline.get_bus() - self.pipeline.set_state(gst.STATE_PLAYING) - - def tearDown(self): - assert self.pipeline.set_state(gst.STATE_PLAYING) - if os.path.exists(self.filename): - os.remove(self.filename) - - def handoff_cb(self, element, buffer, pad): - self.handoffs.append(str(buffer)) - - def playAndIter(self): - self.handoffs = [] - assert self.pipeline.set_state(gst.STATE_PLAYING) - while 42: - msg = self.bus.pop() - if msg and msg.type == gst.MESSAGE_EOS: - break - assert self.pipeline.set_state(gst.STATE_PAUSED) - handoffs = self.handoffs - self.handoffs = [] - return handoffs +# FIXME: fix these tests +#class EventFileSrcTest(unittest.TestCase): +# # FIXME: properly create temp files +# filename = '/tmp/gst-python-test-file' +# def setUp(self): +# if os.path.exists(self.filename): +# os.remove(self.filename) +# open(self.filename, 'w').write(''.join(map(str, range(10)))) +# +# self.pipeline = gst.parse_launch('filesrc name=source location=%s blocksize=1 ! fakesink signal-handoffs=1 name=sink' % self.filename) +# self.source = self.pipeline.get_by_name('source') +# self.sink = self.pipeline.get_by_name('sink') +# self.sink.connect('handoff', self.handoff_cb) +# self.bus = self.pipeline.get_bus() +# self.pipeline.set_state(gst.STATE_PLAYING) +# +# def tearDown(self): +# assert self.pipeline.set_state(gst.STATE_PLAYING) +# if os.path.exists(self.filename): +# os.remove(self.filename) +# +# def handoff_cb(self, element, buffer, pad): +# self.handoffs.append(str(buffer)) +# +# def playAndIter(self): +# self.handoffs = [] +# assert self.pipeline.set_state(gst.STATE_PLAYING) +# while 42: +# msg = self.bus.pop() +# if msg and msg.type == gst.MESSAGE_EOS: +# break +# assert self.pipeline.set_state(gst.STATE_PAUSED) +# handoffs = self.handoffs +# self.handoffs = [] +# return handoffs +# +# def sink_seek(self, offset, method=gst.SEEK_METHOD_SET): +# method |= (gst.SEEK_FLAG_FLUSH | gst.FORMAT_BYTES) +# self.source.send_event(gst.event_new_seek(method, offset)) +# self.source.send_event(gst.Event(gst.EVENT_FLUSH)) +# self.sink.send_event(gst.event_new_seek(method, offset)) +# self.sink.send_event(gst.Event(gst.EVENT_FLUSH)) +# +# def testSimple(self): +# handoffs = self.playAndIter() +# assert handoffs == map(str, range(10)) +# +# def testSeekCur(self): +# self.sink_seek(8) +# +# #print self.playAndIter() - def sink_seek(self, offset, method=gst.SEEK_METHOD_SET): - method |= (gst.SEEK_FLAG_FLUSH | gst.FORMAT_BYTES) - self.source.send_event(gst.event_new_seek(method, offset)) - self.source.send_event(gst.Event(gst.EVENT_FLUSH)) - self.sink.send_event(gst.event_new_seek(method, offset)) - self.sink.send_event(gst.Event(gst.EVENT_FLUSH)) - - def testSimple(self): - handoffs = self.playAndIter() - assert handoffs == map(str, range(10)) - - def testSeekCur(self): - self.sink_seek(8) - - #print self.playAndIter() - class TestEmit(unittest.TestCase): def testEmit(self): object = testhelper.get_object() @@ -98,7 +100,7 @@ class TestEmit(unittest.TestCase): testhelper.emit_event(object) # Then emit from Python - object.emit('event', gst.Event(gst.EVENT_UNKNOWN)) + object.emit('event', gst.event_new_eos()) def _event_cb(self, obj, event): assert isinstance(event, gst.Event) diff --git a/testsuite/test_pad.py b/testsuite/test_pad.py index 5c45698..679de5f 100644 --- a/testsuite/test_pad.py +++ b/testsuite/test_pad.py @@ -26,13 +26,35 @@ class PadTest(unittest.TestCase): def setUp(self): self.pipeline = gst.parse_launch('fakesrc name=source ! fakesink') src = self.pipeline.get_by_name('source') - self.sink = src.get_pad('src') + self.srcpad = src.get_pad('src') - def testQuery(self): - assert self.sink.query(gst.QUERY_TOTAL, gst.FORMAT_BYTES) == -1 - assert self.sink.query(gst.QUERY_POSITION, gst.FORMAT_BYTES) == 0 - assert self.sink.query(gst.QUERY_POSITION, gst.FORMAT_TIME) == 0 +# FIXME: now that GstQuery is a miniobject with various _new_ factory +# functions, we need to figure out a way to deal with them in python +# def testQuery(self): +# assert self.sink.query(gst.QUERY_TOTAL, gst.FORMAT_BYTES) == -1 +# assert self.srcpad.query(gst.QUERY_POSITION, gst.FORMAT_BYTES) == 0 +# assert self.srcpad.query(gst.QUERY_POSITION, gst.FORMAT_TIME) == 0 + +class PadProbeTest(unittest.TestCase): + def testFakeSrcProbe(self): + pipeline = gst.Pipeline() + fakesrc = gst.element_factory_make('fakesrc') + fakesrc.set_property('num-buffers', 1) + fakesink = gst.element_factory_make('fakesink') + + pipeline.add_many(fakesrc, fakesink) + fakesrc.link(fakesink) + pad = fakesrc.get_pad('src') + pad.add_buffer_probe(self._probe_callback_fakesrc) + self._got_fakesrc_buffer = False + pipeline.set_state(gst.STATE_PLAYING) + while not self._got_fakesrc_buffer: + pass + + def _probe_callback_fakesrc(self, pad, buffer): + self.failUnless(isinstance(pad, gst.Pad)) + self.failUnless(isinstance(buffer, gst.Buffer)) + self._got_fakesrc_buffer = True if __name__ == "__main__": unittest.main() - diff --git a/testsuite/test_pipeline.py b/testsuite/test_pipeline.py index a87a86b..3549e23 100644 --- a/testsuite/test_pipeline.py +++ b/testsuite/test_pipeline.py @@ -20,6 +20,8 @@ # License along with this library; if not, write to the Free Software # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA +import time + from common import gst, unittest class PipelineConstructor(unittest.TestCase): @@ -30,12 +32,6 @@ class PipelineConstructor(unittest.TestCase): assert isinstance(pipeline, gst.Pipeline), 'pipeline is not a GstPipline' assert pipeline.get_name() == name, 'pipelines name is wrong' -## class ThreadConstructor(unittest.TestCase): -## def testCreate(self): -## thread = gst.Thread('test-thread') -## assert thread is not None, 'thread is None' -## assert isinstance(thread, gst.Thread) - class Pipeline(unittest.TestCase): def setUp(self): self.pipeline = gst.Pipeline('test-pipeline') @@ -50,10 +46,9 @@ class Pipeline(unittest.TestCase): self.pipeline.set_state(gst.STATE_PLAYING) self.assertEqual(self.pipeline.get_state(), gst.STATE_PLAYING) - while self.pipeline.iterate(): - pass + time.sleep(1) - self.assertEqual(self.pipeline.get_state(), gst.STATE_PAUSED) + self.assertEqual(self.pipeline.get_state(), gst.STATE_PLAYING) self.pipeline.set_state(gst.STATE_NULL) self.assertEqual(self.pipeline.get_state(), gst.STATE_NULL) diff --git a/testsuite/test_probe.py b/testsuite/test_probe.py deleted file mode 100644 index 67e2eb1..0000000 --- a/testsuite/test_probe.py +++ /dev/null @@ -1,102 +0,0 @@ -# -*- Mode: Python; test-case-name: testsuite.test_probe -*- -# vi:si:et:sw=4:sts=4:ts=4 -# -# gst-python - Python bindings for GStreamer -# Copyright (C) 2002 David I. Lehn -# Copyright (C) 2004 Johan Dahlin -# Copyright (C) 2005 Edward Hervey -# -# 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 - -import sys -from common import gst, unittest - -class ProbeTest(unittest.TestCase): - def testWrongNumber(self): - self.assertRaises(TypeError, gst.Probe, True) - - def testWrongType(self): - # bool is int type - self.assertRaises(TypeError, gst.Probe, "noint", lambda x: "x") - # second arg should be callable - self.assertRaises(TypeError, gst.Probe, True, "nocallable") - - def testPerformNoData(self): - probe = gst.Probe(True, self._probe_callback, "yeeha") - self.assertRaises(TypeError, probe.perform, None) - self.assertRaises(TypeError, probe.perform, "nodata") - - def testPerformNoArg(self): - probe = gst.Probe(True, self._probe_callback_no_arg) - buffer = gst.Buffer() - probe.perform(buffer) - self.assertEqual(self._no_arg, None) - - def _probe_callback_no_arg(self, probe, data): - self._no_arg = None - - def testPerformOneArg(self): - probe = gst.Probe(True, self._probe_callback, "yeeha") - buffer = gst.Buffer() - probe.perform(buffer) - self.assertEqual(self._probe_result, "yeeha") - - def _probe_callback(self, probe, data, result): - self._probe_result = result - return True - - def testPerformTwoArgs(self): - probe = gst.Probe(True, self._probe_callback_two, "yeeha", "works") - buffer = gst.Buffer() - probe.perform(buffer) - self.assertEqual(self._probe_result1, "yeeha") - self.assertEqual(self._probe_result2, "works") - - def _probe_callback_two(self, probe, data, result1, result2): - self._probe_result1 = result1 - self._probe_result2 = result2 - return True - - # this test checks if the probe can replace the probed GstData with - # another, FIXME: use return values on probe callback for this - def notestPerformChangeBuffer(self): - probe = gst.Probe(True, self._probe_callback_change_buffer) - buffer = gst.Buffer('changeme') - probe.perform(buffer) - self.assertEqual(str(buffer), 'changed') - - def _probe_callback_change_buffer(self, probe, data): - data = gst.Buffer('changed') - - def testFakeSrcProbe(self): - pipeline = gst.Pipeline() - fakesrc = gst.element_factory_make('fakesrc') - fakesrc.set_property('num-buffers', 1) - fakesink = gst.element_factory_make('fakesink') - - pipeline.add_many(fakesrc, fakesink) - fakesrc.link(fakesink) - pad = fakesrc.get_pad('src') - probe = gst.Probe(True, self._probe_callback_fakesrc) - pad.add_probe(probe) - pipeline.set_state(gst.STATE_PLAYING) - while pipeline.iterate(): pass - self.assertEqual(self._got_fakesrc_buffer, True) - - def _probe_callback_fakesrc(self, probe, data): - self._got_fakesrc_buffer = True - -if __name__ == "__main__": - unittest.main() diff --git a/testsuite/test_struct.py b/testsuite/test_struct.py index 0248aa0..b73560d 100644 --- a/testsuite/test_struct.py +++ b/testsuite/test_struct.py @@ -35,26 +35,26 @@ class StructureTest(unittest.TestCase): def testInt(self): assert self.struct.has_key('width') assert isinstance(self.struct['width'], int) - assert self.struct['width'] == 10, self.struct['width'] - self.struct['width'] = 5 + assert self.struct['width'] == 10, self.struct['width'] + self.struct['width'] = 5 assert self.struct.has_key('width') assert isinstance(self.struct['width'], int) - assert self.struct['width'] == 5, self.struct['width'] + assert self.struct['width'] == 5, self.struct['width'] def testString(self): assert self.struct.has_key('foo') assert isinstance(self.struct['foo'], str) - assert self.struct['foo'] == 'bar', self.struct['foo'] - self.struct['foo'] = 'baz' + assert self.struct['foo'] == 'bar', self.struct['foo'] + self.struct['foo'] = 'baz' assert self.struct.has_key('foo') assert isinstance(self.struct['foo'], str) - assert self.struct['foo'] == 'baz', self.struct['foo'] + assert self.struct['foo'] == 'baz', self.struct['foo'] def testCreateInt(self): - self.struct['integer'] = 5 + self.struct['integer'] = 5 assert self.struct.has_key('integer') assert isinstance(self.struct['integer'], int) - assert self.struct['integer'] == 5, self.struct['integer'] + assert self.struct['integer'] == 5, self.struct['integer'] def testGstValue(self): s = self.struct @@ -83,9 +83,9 @@ class StructureTest(unittest.TestCase): assert s['rlist'] == [([(['a', 'b'], ['c', 'd']),'e'], ['f', 'g']), 'h'] def testStructureChange(self): - assert self.struct['framerate'] == 5.0 - self.struct['framerate'] = 10.0 - assert self.struct['framerate'] == 10.0 + assert self.struct['framerate'] == 5.0 + self.struct['framerate'] = 10.0 + assert self.struct['framerate'] == 10.0 self.struct['pixel-aspect-ratio'] = gst.Fraction(4, 2) assert self.struct['pixel-aspect-ratio'].num == 2 assert self.struct['pixel-aspect-ratio'].denom == 1 |