def testPropertyMarshalling(self):
Gst.init(None)
obj = Gst.ElementFactory.make("rawvideoparse")
if not obj:
# no rawvideoparse and I don't know of any elements in core or -base using
# fraction properties. Skip this test.
return
value = obj.props.plane_strides
self.assertEqual(value[0], 320)
self.assertEqual(value[1], 160)
self.assertEqual(value[2], 160)
obj.props.plane_strides = Gst.ValueArray([640, 320, 320])
value = obj.props.plane_strides
self.assertEqual(value[0], 640)
self.assertEqual(value[1], 320)
self.assertEqual(value[2], 320)
def bad():
obj.props.plane_strides = 1
self.assertRaises(TypeError, bad)
value = obj.props.plane_strides
self.assertEqual(value[0], 640)
self.assertEqual(value[1], 320)
self.assertEqual(value[2], 320)
def testConstructor(self):
Gst.init(None)
a = Gst.ValueArray((1, 2, 3))
self.assertEqual(a.array, [1, 2, 3])
self.assertRaises(TypeError, Gst.ValueArray, 1)
self.assertRaises(TypeError, Gst.ValueArray)
def testGetValue(self):
Gst.init(None)
st = Gst.Structure.new_empty("video/x-raw")
st["array"] = Gst.ValueArray([Gst.Fraction(1, 30), Gst.Fraction(1, 2)])
value = st["array"]
st["array"] = Gst.ValueArray(value)
self.assertEqual(value[0], Gst.Fraction(1, 30))
self.assertEqual(value[1], Gst.Fraction(1, 2))
st["matrix"] = Gst.ValueArray(
[Gst.ValueArray([0, 1]),
Gst.ValueArray([-1, 0])])
value = st["matrix"]
self.assertEqual(value[0][0], 0)
self.assertEqual(value[0][1], 1)
self.assertEqual(value[1][0], -1)
self.assertEqual(value[1][1], 0)
def testRepr(self):
Gst.init(None)
self.assertEqual(repr(Gst.ValueArray([1, 2, 3])),
'<Gst.ValueArray <1,2,3>>')