def test_OneBlackFrame(self):
codec = vp9.Vp9Codec()
my_optimizer = optimizer.Optimizer(codec)
videofile = test_tools.MakeYuvFileWithOneBlankFrame(
'one_black_frame_1024_768_30.yuv')
encoding = my_optimizer.BestEncoding(1000, videofile)
encoding.Execute()
# Most codecs should be good at this.
self.assertLess(50.0, my_optimizer.Score(encoding))
self.assertEqual(1, len(encoding.result['frame']))
# Check that expected results are present and "reasonable".
print encoding.result
self.assertTrue(0.02 < encoding.result['encode_cputime'] < 15.0)
self.assertTrue(100 < encoding.result['bitrate'] < 500)
self.assertTrue(500 < encoding.result['frame'][0]['size'] < 12000)
def test_Passes(self):
"""This test checks that both 1-pass and 2-pass encoding works."""
codec = vp9.Vp9Codec()
my_optimizer = optimizer.Optimizer(codec)
videofile = test_tools.MakeYuvFileWithOneBlankFrame(
'one_black_frame_1024_768_30.yuv')
start_encoder = codec.StartEncoder(my_optimizer.context)
encoder1 = encoder.Encoder(
my_optimizer.context,
start_encoder.parameters.ChangeValue('passes', 1))
encoding1 = encoder1.Encoding(1000, videofile)
encoder2 = encoder.Encoder(
my_optimizer.context,
start_encoder.parameters.ChangeValue('passes', 2))
encoding2 = encoder2.Encoding(1000, videofile)
encoding1.Execute()
encoding2.Execute()
self.assertTrue(encoding1.result)
self.assertTrue(encoding2.result)
def test_SpeedGroup(self):
codec = vp9.Vp9Codec()
self.assertEqual('5000', codec.SpeedGroup(5000))
def test_Init(self):
codec = vp9.Vp9Codec()
self.assertEqual(codec.name, 'vp9')
def test_EncoderVersion(self):
codec = vp9.Vp9Codec()
self.assertRegexpMatches(codec.EncoderVersion(),
r'WebM Project VP9 Encoder')