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Validation check now allows for multiple colr boxes. Closes #77

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jp2h superboxes can contain multiple colr boxes, so we need to check
each one for validity.
This commit is contained in:
John Evans 2013-07-24 06:01:46 -04:00 • committed by John Evans
commit ee2b3b9c0e
2 changed files with 28 additions and 20 deletions
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19
glymur/jp2k.py
View file

@ -167,15 +167,16 @@ class Jp2k(Jp2kBox):
"""
# A jp2-branded file cannot contain an "any ICC profile
ftyp = self.box[1]
jp2h = [box for box in self.box if box.box_id == 'jp2h'][0]
colr = [box for box in jp2h.box if box.box_id == 'colr'][0]
if (((ftyp.brand == 'jp2 ') and
(colr.method not in (ENUMERATED_COLORSPACE,
RESTRICTED_ICC_PROFILE)))):
msg = "Color Specification box method must specify either an "
msg += "enumerated colorspace or a restricted ICC profile if the "
msg += "file type box brand is 'jp2 '."
warnings.warn(msg)
if ftyp.brand == 'jp2 ':
jp2h = [box for box in self.box if box.box_id == 'jp2h'][0]
colrs = [box for box in jp2h.box if box.box_id == 'colr']
for colr in colrs:
if colr.method not in (ENUMERATED_COLORSPACE,
RESTRICTED_ICC_PROFILE):
msg = "Color Specification box method must specify either "
msg += "an enumerated colorspace or a restricted ICC "
msg += "profile if the file type box brand is 'jp2 '."
warnings.warn(msg)
# pylint: disable-msg=W0221

29
glymur/test/test_conformance.py
View file

@ -26,11 +26,13 @@ except:
try:
opj_data_root = os.environ['OPJ_DATA_ROOT']
except KeyError:
opj_corpus_data_root = None
opj_data_root = None
except:
raise
@unittest.skipIf(format_corpus_data_root is None,
"FORMAT_CORPUS_DATA_ROOT environment variable not set")
@unittest.skipIf(sys.hexversion < 0x03020000,
"Requires features introduced in 3.2 (assertWarns)")
class TestSuiteFormatCorpus(unittest.TestCase):
@ -41,8 +43,6 @@ class TestSuiteFormatCorpus(unittest.TestCase):
def tearDown(self):
pass
@unittest.skipIf(format_corpus_data_root is None,
"FORMAT_CORPUS_DATA_ROOT environment variable not set")
def test_balloon_trunc1(self):
# Has one byte shaved off of EOC marker.
jfile = os.path.join(format_corpus_data_root,
@ -58,8 +58,6 @@ class TestSuiteFormatCorpus(unittest.TestCase):
with self.assertRaises(OSError):
j2k.read(rlevel=-1)
@unittest.skipIf(format_corpus_data_root is None,
"FORMAT_CORPUS_DATA_ROOT environment variable not set")
def test_balloon_trunc2(self):
# Shortened by 5000 bytes.
jfile = os.path.join(format_corpus_data_root,
@ -75,8 +73,6 @@ class TestSuiteFormatCorpus(unittest.TestCase):
with self.assertRaises(OSError):
j2k.read(rlevel=-1)
@unittest.skipIf(format_corpus_data_root is None,
"FORMAT_CORPUS_DATA_ROOT environment variable not set")
def test_balloon_trunc3(self):
# Most of last tile is missing.
jfile = os.path.join(format_corpus_data_root,
@ -92,8 +88,6 @@ class TestSuiteFormatCorpus(unittest.TestCase):
#with self.assertRaises(OSError):
# j2k.read(rlevel=-1)
@unittest.skipIf(format_corpus_data_root is None,
"FORMAT_CORPUS_DATA_ROOT environment variable not set")
def test_jp2_brand_vs_any_icc_profile(self):
# If 'jp2 ', then the method cannot be any icc profile.
jfile = os.path.join(format_corpus_data_root,
@ -102,7 +96,22 @@ class TestSuiteFormatCorpus(unittest.TestCase):
with self.assertWarns(UserWarning):
j2k = Jp2k(jfile)
def test_jp2_brand_vs_any_icc_profile_multiple_colr(self):
# Has colr box, one that conforms, one that does not.
# Wrong 'brand' field; contains two versions of ICC profile: one
# embedded using "Any ICC" method; other embedded using "Restricted
# ICC" method, with description ("Modified eciRGB v2") and profileClass
# ("Input Device") changed relative to original profile.
lst = [format_corpus_data_root, 'jp2k-test', 'icc',
'balloon_eciRGBv2_ps_adobeplugin_jp2compatible.jpf']
jfile = os.path.join(*lst)
with self.assertWarns(UserWarning):
j2k = Jp2k(jfile)
@unittest.skipIf(opj_data_root is None,
"OPJ_DATA_ROOT environment variable not set")
@unittest.skipIf(sys.hexversion < 0x03020000,
"Requires features introduced in 3.2 (assertWarns)")
class TestSuiteOpj(unittest.TestCase):
@ -113,8 +122,6 @@ class TestSuiteOpj(unittest.TestCase):
def tearDown(self):
pass
@unittest.skipIf(opj_data_root is None,
"OPJ_DATA_ROOT environment variable not set")
def test_jp2_brand_vs_any_icc_profile(self):
# If 'jp2 ', then the method cannot be any icc profile.
filename = os.path.join(opj_data_root,