def test_default_decoder_parameters(self):
"""Tests that the structure is clean upon initialization"""
dparams = openjp2.set_default_decoder_parameters()
self.assertEqual(dparams.DA_x0, 0)
self.assertEqual(dparams.DA_y0, 0)
self.assertEqual(dparams.DA_x1, 0)
self.assertEqual(dparams.DA_y1, 0)
def test_default_decoder_parameters(self):
"""Tests that the structure is clean upon initialization"""
dparams = openjp2.set_default_decoder_parameters()
self.assertEqual(dparams.DA_x0, 0)
self.assertEqual(dparams.DA_y0, 0)
self.assertEqual(dparams.DA_x1, 0)
self.assertEqual(dparams.DA_y1, 0)
def tile_decoder(**kwargs):
"""Fixture called with various configurations by many tests.
Reads a tile. That's all it does.
"""
stream = openjp2.stream_create_default_file_stream(kwargs['filename'],
True)
dparam = openjp2.set_default_decoder_parameters()
dparam.decod_format = kwargs['codec_format']
# Do not use layer decoding limitation.
dparam.cp_layer = 0
# do not use resolution reductions.
dparam.cp_reduce = 0
codec = openjp2.create_decompress(kwargs['codec_format'])
openjp2.set_info_handler(codec, None)
openjp2.set_warning_handler(codec, None)
openjp2.set_error_handler(codec, None)
openjp2.setup_decoder(codec, dparam)
image = openjp2.read_header(stream, codec)
openjp2.set_decode_area(codec, image,
kwargs['x0'], kwargs['y0'],
kwargs['x1'], kwargs['y1'])
data = np.zeros((1150, 2048, 3), dtype=np.uint8)
while True:
rargs = openjp2.read_tile_header(codec, stream)
tidx = rargs[0]
size = rargs[1]
go_on = rargs[-1]
if not go_on:
break
openjp2.decode_tile_data(codec, tidx, data, size, stream)
openjp2.end_decompress(codec, stream)
openjp2.destroy_codec(codec)
openjp2.stream_destroy(stream)
openjp2.image_destroy(image)
def tile_decoder(**kwargs):
"""Fixture called with various configurations by many tests.
Reads a tile. That's all it does.
"""
stream = openjp2.stream_create_default_file_stream(kwargs['filename'],
True)
dparam = openjp2.set_default_decoder_parameters()
dparam.decod_format = kwargs['codec_format']
# Do not use layer decoding limitation.
dparam.cp_layer = 0
# do not use resolution reductions.
dparam.cp_reduce = 0
codec = openjp2.create_decompress(kwargs['codec_format'])
openjp2.set_info_handler(codec, None)
openjp2.set_warning_handler(codec, None)
openjp2.set_error_handler(codec, None)
openjp2.setup_decoder(codec, dparam)
image = openjp2.read_header(stream, codec)
openjp2.set_decode_area(codec, image,
kwargs['x0'], kwargs['y0'],
kwargs['x1'], kwargs['y1'])
data = np.zeros((1150, 2048, 3), dtype=np.uint8)
while True:
rargs = openjp2.read_tile_header(codec, stream)
tidx = rargs[0]
size = rargs[1]
go_on = rargs[-1]
if not go_on:
break
openjp2.decode_tile_data(codec, tidx, data, size, stream)
openjp2.end_decompress(codec, stream)
openjp2.destroy_codec(codec)
openjp2.stream_destroy(stream)
openjp2.image_destroy(image)
