jyapayne/glymur
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pylint work.

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jevans 2013-07-06 22:43:53 -04:00
commit ceb71ccbf2
1 changed files with 27 additions and 27 deletions
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54
glymur/codestream.py
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@ -701,12 +701,12 @@ class Codestream(object):
return QCCsegment(**kwargs) return QCCsegment(**kwargs)
def _parseQCDsegment(self, f): def _parseQCDsegment(self, fptr):
"""Parse the QCD segment. """Parse the QCD segment.
Parameters Parameters
---------- ----------
f : file fptr : file
Open file object. Open file object.
Returns Returns
@ -714,20 +714,20 @@ class Codestream(object):
QCD Segment instance. QCD Segment instance.
""" """
kwargs = {} kwargs = {}
kwargs['offset'] = f.tell() - 2 kwargs['offset'] = fptr.tell() - 2
buffer = f.read(3) read_buffer = fptr.read(3)
length, sqcd = struct.unpack('>HB', buffer) length, sqcd = struct.unpack('>HB', read_buffer)
kwargs['length'] = length kwargs['length'] = length
kwargs['Sqcd'] = sqcd kwargs['Sqcd'] = sqcd
kwargs['_guardBits'] = (sqcd & 0xe0) >> 5 kwargs['_guardBits'] = (sqcd & 0xe0) >> 5
buffer = f.read(length - 3) read_buffer = fptr.read(length - 3)
mantissa, exponent = self._parseQuantization(buffer, sqcd) mantissa, exponent = self._parseQuantization(read_buffer, sqcd)
kwargs['SPqcd'] = buffer kwargs['SPqcd'] = read_buffer
kwargs['_exponent'] = exponent kwargs['_exponent'] = exponent
kwargs['_mantissa'] = mantissa kwargs['_mantissa'] = mantissa
@ -748,15 +748,15 @@ class Codestream(object):
kwargs = {} kwargs = {}
kwargs['offset'] = f.tell() - 2 kwargs['offset'] = f.tell() - 2
buffer = f.read(2) read_buffer = f.read(2)
length, = struct.unpack('>H', buffer) length, = struct.unpack('>H', read_buffer)
if self._Csiz < 257: if self._Csiz < 257:
buffer = f.read(3) read_buffer = f.read(3)
data = struct.unpack('>BBB', buffer) data = struct.unpack('>BBB', read_buffer)
else: else:
buffer = f.read(4) read_buffer = f.read(4)
data = struct.unpack('>HBB', buffer) data = struct.unpack('>HBB', read_buffer)
kwargs['length'] = length kwargs['length'] = length
kwargs['Crgn'] = data[0] kwargs['Crgn'] = data[0]
@ -765,12 +765,12 @@ class Codestream(object):
return RGNsegment(**kwargs) return RGNsegment(**kwargs)
def _parseSODsegment(self, f): def _parseSODsegment(self, fptr):
"""Parse the SOD segment. """Parse the SOD segment.
Parameters Parameters
---------- ----------
f : file fptr : file
Open file object. Open file object.
Returns Returns
@ -778,17 +778,17 @@ class Codestream(object):
SOD segment instance. SOD segment instance.
""" """
kwargs = {} kwargs = {}
kwargs['offset'] = f.tell() - 2 kwargs['offset'] = fptr.tell() - 2
kwargs['length'] = 0 kwargs['length'] = 0
return SODsegment(**kwargs) return SODsegment(**kwargs)
def _parseSOTsegment(self, f): def _parseSOTsegment(self, fptr):
"""Parse the SOT segment. """Parse the SOT segment.
Parameters Parameters
---------- ----------
f : file fptr : file
Open file object. Open file object.
Returns Returns
@ -796,10 +796,10 @@ class Codestream(object):
SOT segment instance. SOT segment instance.
""" """
kwargs = {} kwargs = {}
kwargs['offset'] = f.tell() - 2 kwargs['offset'] = fptr.tell() - 2
buffer = f.read(10) read_buffer = fptr.read(10)
data = struct.unpack('>HHIBB', buffer) data = struct.unpack('>HHIBB', read_buffer)
kwargs['length'] = data[0] kwargs['length'] = data[0]
kwargs['Isot'] = data[1] kwargs['Isot'] = data[1]
@ -1682,13 +1682,13 @@ class TLMsegment(Segment):
return msg return msg
def _parse_precinct_size(buffer): def _parse_precinct_size(spcod):
"""Compute precinct size from SPcod or SPcoc.""" """Compute precinct size from SPcod or SPcoc."""
SPcocd = np.frombuffer(buffer, dtype=np.uint8) spcod = np.frombuffer(spcod, dtype=np.uint8)
precinct_size = [] precinct_size = []
for x in SPcocd: for item in spcod:
ep2 = (x & 0xF0) >> 4 ep2 = (item & 0xF0) >> 4
ep1 = x & 0x0F ep1 = item & 0x0F
precinct_size.append((2 ** ep1, 2 ** ep2)) precinct_size.append((2 ** ep1, 2 ** ep2))
return precinct_size return precinct_size