def ric_decode(imgbuf):
offset = 0
boxType = None
boxLen, boxType, payload = iso_media.read_box(imgbuf[offset:])
if boxType != "FTYP" or payload != "RIC ":
print >> sys.stderr, "Fishy file type!!!", boxType, payload
return None
offset += boxLen
boxLen, boxType, payload = iso_media.read_box(imgbuf[offset:])
if boxType != "ILOT":
print >> sys.stderr, "No offset table???", boxType
return None
offset += boxLen
layers = wrapper.unwrapLayers(imgbuf[offset:])
outputImg = Decoder().decode(layers)
output = StringIO()
outputImg.save(output, "JPEG", quality = 90);
return output.getvalue()
def ric_decode(imgbuf):
offset = 0
boxType = None
boxLen, boxType, payload = iso_media.read_box(imgbuf[offset:])
if boxType != "FTYP" or payload != "RIC ":
print >> sys.stderr, "Fishy file type!!!", boxType, payload
return None
offset += boxLen
boxLen, boxType, payload = iso_media.read_box(imgbuf[offset:])
if boxType != "ILOT":
print >> sys.stderr, "No offset table???", boxType
return None
offset += boxLen
layers = wrapper.unwrapLayers(imgbuf[offset:])
outputImg = Decoder().decode(layers)
output = StringIO()
outputImg.save(output, "JPEG", quality=90)
return output.getvalue()
def unwrapLayers(buf):
def readImageBuffer(imgbuf, type):
offset = 0
parameters = []
for i in range(params_num[type]):
parameters.append((iso_media.read_int16(imgbuf[offset:]),
iso_media.read_int16(imgbuf[offset + 2:])))
offset += 4
io = StringIO(imgbuf[offset:])
img = Image.open(io)
io.close()
return img, parameters
bufLen = len(buf)
offset = 0
layers = []
while offset < bufLen:
boxLen, boxType, payload = iso_media.read_box(buf[offset:])
offset += boxLen
layers.append(readImageBuffer(payload, boxType))
return layers
def unwrapLayers(buf):
def readImageBuffer(imgbuf, type):
offset = 0
parameters = []
for i in range(params_num[type]):
parameters.append((iso_media.read_int16(imgbuf[offset:]),
iso_media.read_int16(imgbuf[offset+2:])))
offset += 4
io = StringIO(imgbuf[offset:])
img = Image.open(io)
io.close()
return img, parameters
bufLen = len(buf)
offset = 0
layers = []
while offset < bufLen:
boxLen, boxType, payload = iso_media.read_box(buf[offset:])
offset += boxLen
layers.append(readImageBuffer(payload, boxType))
return layers
def testRead(self):
data1 = "\x00\x00\x00\x0bftypbla"
length, type, payload = iso_media.read_box(data1)
self.failUnless(length == 11)
self.failUnless(type == "ftyp")
self.failUnless(payload == "bla")
def testRead(self):
data1 = "\x00\x00\x00\x0bftypbla"
length, type, payload = iso_media.read_box(data1)
self.failUnless(length == 11)
self.failUnless(type == "ftyp")
self.failUnless(payload == "bla")