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d44975a1fe
This is needed to support matrix. Otherwise, getting a matrix would remove the rows envelopess, which would make the "cast" fails, since it would not know if the internal rows are ValueArray or ValueList. I think reading, modifying and setting back the matrix is an important use case.
99 lines
2.9 KiB
Python
99 lines
2.9 KiB
Python
# -*- Mode: Python -*-
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# vi:si:et:sw=4:sts=4:ts=4
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#
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# gst-python - Python bindings for GStreamer
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# Copyright (C) 2007 Johan Dahlin
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#
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# This library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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#
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with this library; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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import overrides_hack
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overrides_hack
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from common import TestCase
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import gi
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gi.require_version("Gst", "1.0")
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from gi.repository import Gst
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Gst.init(None)
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A = Gst.ValueArray
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class TestFraction(TestCase):
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def testConstructor(self):
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Gst.init(None)
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a = A((1,2,3))
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self.assertEquals(a.array, [1,2,3])
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self.assertRaises(TypeError, A, 1)
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self.assertRaises(TypeError, A)
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def testRepr(self):
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Gst.init(None)
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self.assertEquals(repr(A([1,2,3])), '<Gst.ValueArray <1,2,3>>')
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def testPropertyMarshalling(self):
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Gst.init(None)
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obj = Gst.ElementFactory.make("rawvideoparse")
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if not obj:
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# no rawvideoparse and I don't know of any elements in core or -base using
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# fraction properties. Skip this test.
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return
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value = obj.props.plane_strides
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self.failUnlessEqual(value[0], 320)
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self.failUnlessEqual(value[1], 160)
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self.failUnlessEqual(value[2], 160)
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obj.props.plane_strides = A([640,320,320])
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value = obj.props.plane_strides
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self.failUnlessEqual(value[0], 640)
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self.failUnlessEqual(value[1], 320)
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self.failUnlessEqual(value[2], 320)
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def bad():
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obj.props.plane_strides = 1
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self.failUnlessRaises(TypeError, bad)
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value = obj.props.plane_strides
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self.failUnlessEqual(value[0], 640)
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self.failUnlessEqual(value[1], 320)
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self.failUnlessEqual(value[2], 320)
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def testGetValue(self):
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Gst.init(None)
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st = Gst.Structure.new_empty("video/x-raw")
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st["array"] = A([Gst.Fraction(1, 30), Gst.Fraction(1, 2)])
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value = st["array"]
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st["array"] = A(value)
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self.failUnlessEqual(value[0], Gst.Fraction(1, 30))
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self.failUnlessEqual(value[1], Gst.Fraction(1, 2))
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st["matrix"] = A([A([0, 1]), A([-1, 0])])
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value = st["matrix"]
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self.failUnlessEqual(value[0][0], 0)
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self.failUnlessEqual(value[0][1], 1)
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self.failUnlessEqual(value[1][0], -1)
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self.failUnlessEqual(value[1][1], 0)
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