def unpackchunks(cls, f):
chunks = OrderedDict()
with open(f, 'rb') as fh:
frm = fmpchunk()
frm.unpack(fh)
frm.data = fh.read(4)
filelen = frm.len - 16
chunks[frm.id] = frm
print frm
while fh.tell() < filelen:
fc = fmpchunk()
if not fc.unpack(fh): break
print fh.tell(), fc
fc.data = fh.read(fc.len)
chunks[fc.id] = fc
return chunks
def unpackchunks(cls, f):
chunks = OrderedDict()
with open(f, 'rb') as fh:
frm = fmpchunk()
frm.unpack(fh)
frm.data = fh.read(4)
filelen = frm.len - 16
chunks[frm.id] = frm
print frm
while fh.tell() < filelen:
fc = fmpchunk()
if not fc.unpack(fh): break
print fh.tell(), fc
fc.data = fh.read(fc.len)
chunks[fc.id] = fc
return chunks
def readchunks(f):
chunks = {}
with open(f, 'rb') as fh:
fc = fmpchunk()
fc.unpack(fh)
filelen = fc.len - 16
print fc, fh.read(4)
while fh.tell() < filelen and fc.unpack(fh) != None:
print fh.tell(), fc
if fc.id == 'MPHD':
mp = MPHD()
mp.unpack(fh)
realsz = struct.calcsize(mp.__fstr)
#if fc.len > realsz:
# raise Exception('Unread data: '+str(fc.len-realsz))
fh.read(fc.len-realsz)
print mp
chunks[fc.id] = mp
else:
chunks[fc.id] = fh.read(fc.len)
return chunks
def readchunks(f):
chunks = {}
with open(f, 'rb') as fh:
fc = fmpchunk()
fc.unpack(fh)
filelen = fc.len - 16
print fc, fh.read(4)
while fh.tell() < filelen and fc.unpack(fh) != None:
print fh.tell(), fc
if fc.id == 'MPHD':
mp = MPHD()
mp.unpack(fh)
realsz = struct.calcsize(mp.__fstr)
#if fc.len > realsz:
# raise Exception('Unread data: '+str(fc.len-realsz))
fh.read(fc.len - realsz)
print mp
chunks[fc.id] = mp
else:
chunks[fc.id] = fh.read(fc.len)
return chunks
def pack(self, cmap):
"""cmap -- QImage.colorTable"""
yield fmpchunk(id='CMAP', len=len(list(cmap))).pack()
for c in cmap:
yield struct.pack('3B', (c.qRed, c.qGreen, c.qBlue))
def pack(self, cmap):
"""cmap -- QImage.colorTable"""
yield fmpchunk(id='CMAP', len=len(list(cmap))).pack()
for c in cmap:
yield struct.pack('3B', (c.qRed,c.qGreen,c.qBlue))
