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jxrfile.py
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jxrfile.py
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#!/usr/bin/python
# $Id: jxrfile.py,v 1.15 2021/05/27 16:05:57 thor Exp $
import getopt
import sys
from jp2utils import *
from icc import *
def lordw(buffer):
return (ord(buffer[1]) << 8) + \
(ord(buffer[0]) << 0)
def lordl(buffer):
return (ord(buffer[3]) << 24) + \
(ord(buffer[2]) << 16) + \
(ord(buffer[1]) << 8) + \
(ord(buffer[0]) << 0)
def lordq(buffer):
return (ord(buffer[7]) << 56) + \
(ord(buffer[6]) << 48) + \
(ord(buffer[5]) << 40) + \
(ord(buffer[4]) << 32) + \
(ord(buffer[3]) << 24) + \
(ord(buffer[2]) << 16) + \
(ord(buffer[1]) << 8) + \
(ord(buffer[0]) << 0)
class JXRCodestream:
def __init__(self,file,indent):
self.infile = file
self.indent = indent
self.alpha_present = False
self.index_table_present = False
self.bitpos = 0
self.bitbuffer = 0
self.frequency_mode = False
self.tiles_wide = 0
self.tiles_high = 0
self.num_bands = 0
self.tile_offsets = None
self.trim_flexbits = False
self.dc_variable = False
self.lp_variable = False
self.hp_variable = False
self.num_components = 0
def get_bits(self,bits):
result = 0
while bits > 0:
avail = self.bitpos
if avail == 0:
self.bitbuffer = ord(self.infile.read(1))
self.bitpos = 8
avail = 8
if avail > bits:
avail = bits
result = (result << avail) | ((self.bitbuffer >> (self.bitpos - avail)) & ((1 << avail) - 1))
bits -= avail
self.bitpos -= avail
return result
def align_to_byte(self):
self.bitpos = 0
def print_indent(self, buffer, nl = 1):
print_indent(buffer, self.indent, nl)
def print_position(self):
print("%i:" % self.infile.tell())
def parse_image_header(self):
self.print_indent("Image Header Contents:")
self.indent += 1
gdi=self.infile.read(8)
self.print_indent("GDI Signature : %s" % gdi[0:7])
flags=ord(self.infile.read(1))
self.print_indent("Reserved B : 0x%01x" % (flags >> 4))
if flags & 0x08 != 0:
hard_tiling="Enabled"
else:
hard_tiling="Disabled"
self.print_indent("Hard Tiling : %s" % hard_tiling)
self.print_indent("Reserved C : 0x%01x" % (flags & 0x07))
flags=ord(self.infile.read(1))
if flags & 0x80 != 0:
tiling="Enabled"
tiles=True
else:
tiling="Disabled"
tiles=False
self.print_indent("Tiling : %s" % tiling)
if flags & 0x40 != 0:
mode = "Frequency"
self.frequency_mode = True
else:
mode = "Spatial"
self.print_indent("Progression : %s" % mode)
xfrm=(flags >> 3) & 0x07
rot = ""
if xfrm == 0:
rot = "Upright"
if xfrm & 1 != 0:
rot += "Flip Vertical "
if xfrm & 2 != 0:
rot += "Flip Horizontal "
if xfrm & 4 != 0:
rot += "Rotate Clockwise "
self.print_indent("Orientation : %s" % rot)
if flags & 0x04:
self.index_table_present = True
idx="Yes"
else:
idx="No"
self.print_indent("Index Table : %s" % idx)
self.print_indent("Overlap Mode : %d" % (flags & 0x03))
flags = ord(self.infile.read(1))
if flags & 0x80 != 0:
shdr = "Short Headers"
short = True
else:
shdr = "Long Headers"
short = False
self.print_indent("Header Format : %s" % shdr)
if flags & 0x40 != 0:
lflg = "32 bit integers required"
else:
lflg = "16 bit integers sufficient"
self.print_indent("Arithmetics : %s" % lflg)
if flags & 0x20 != 0:
windowing = True
win = "Present"
else:
windowing = False
win = "Not Present (full image)"
self.print_indent("View Window : %s" % win)
if flags & 0x10 != 0:
trim="Enabled"
self.trim_flexbits = True
else:
trim="Disabled"
self.print_indent("Trim Flexbits : %s" % trim)
self.print_indent("Reserved D : 0x%01x" % ((flags >> 3) & 0x01))
if flags & 0x04 != 0:
rgb="Not Swapped"
else:
rgb="Swapped"
self.print_indent("RGB order : %s" % rgb)
if flags & 0x02 != 0:
pre="Premultiplied"
else:
pre="Not Premultiplied"
self.print_indent("Alpha Plane : %s" % pre)
if flags & 0x01 != 0:
alpha="Present"
self.alpha_present = True
else:
alpha="Not Present"
self.print_indent("Alpha Plane : %s" % alpha)
flags = ord(self.infile.read(1))
color = (flags >> 4)
bits = flags & 0x0f
self.output_bitdepth = bits
if color == 0:
cmode = "YOnly"
elif color == 1:
cmode = "YUV420"
elif color == 2:
cmode = "YUV422"
elif color == 3:
cmode = "YUV444"
elif color == 4:
cmode = "CMYK"
elif color == 5:
cmode = "CMYK Direct"
elif color == 6:
cmode = "N Component"
elif color == 7:
cmode = "RGB"
elif color == 8:
cmode = "RGBE"
else:
cmode = "Reserved (%d)" % color
self.print_indent("Color Format : %s" % cmode)
if bits == 0:
bmode = "Min is Black"
elif bits == 1:
bmode = "8bpp"
elif bits == 2:
bmode = "16bpp"
elif bits == 3:
bmode = "16bpp Signed"
elif bits == 4:
bmode = "Half Float"
elif bits == 5:
bmode = "Reserved (5)"
elif bits == 6:
bmode = "32bpp Signed"
elif bits == 7:
bmode = "Float"
elif bits == 8:
bmode = "5bpp"
elif bits == 9:
bmode = "10bpp"
elif bits == 10:
bmode = "5:6:5 Packed"
elif bits == 15:
bmode = "Min is White"
else:
bmode = "Reserved (%d)" % bits
self.print_indent("Bit Depths : %s" % bmode)
if short:
width = ordw(self.infile.read(2)) + 1
height = ordw(self.infile.read(2)) + 1
else:
width = ordl(self.infile.read(4)) + 1
height = ordl(self.infile.read(4)) + 1
self.print_indent("Image Width : %d" % width)
self.print_indent("Image Height : %d" % height)
if tiles:
t1 = ord(self.infile.read(1))
t2 = ord(self.infile.read(1))
t3 = ord(self.infile.read(1))
tilew = ((t1 << 4) | ((t2 & 0xf0) >> 4)) + 1
tileh = (((t2 & 0x0f) << 8) | t3) + 1
self.print_indent("Tiles Left-Right : %d" % tilew)
self.print_indent("Tiles Top-Bottom : %d" % tileh)
else:
tilew = 1
tileh = 1
totw = width
self.tiles_wide = tilew
self.tiles_high = tileh
for x in range(0,tilew-1):
if short:
tw = ord(self.infile.read(1))
else:
tw = ordw(self.infile.read(2))
self.print_indent("Width of Tile %d : %d MBs" % (x,tw))
totw -= tw << 4
if tiles:
self.print_indent("Width of Tile %d : %d MBs (computed)" % (tilew-1,(totw + 15) >> 4))
toth = height
for y in range(0,tileh-1):
if short:
th = ord(self.infile.read(1))
else:
th = ord(self.infile.read(2))
self.print_indent("Height of Tile %d : %d MBs" % (y,th))
toth -= th << 4
if tiles:
self.print_indent("Height of Tile %d : %d MBs (computed)" % (tileh-1,(toth + 15) >> 4))
if windowing:
t1 = ord(self.infile.read(1))
t2 = ord(self.infile.read(1))
t3 = ord(self.infile.read(1))
top = t1 >> 2
left = ((t1 & 0x03) << 4) | ((t2 & 0xf0) >> 4)
bot = ((t2 & 0x0f) << 2) | ((t3 & 0xc0) >> 6)
right = t3 & 0x3f
self.print_indent("Top Border : %d" % top)
self.print_indent("Left Border : %d" % left)
self.print_indent("Bottom Border : %d" % bot)
self.print_indent("Right Border : %d" % right)
self.indent -= 1
def parse_quantizer(self,comps,band):
self.indent += 1
if comps != 1:
mode = self.get_bits(2)
if mode == 0:
qmod = "Uniform"
elif mode == 1:
qmod = "Separate"
elif mode == 2:
qmod = "Independent"
elif mode == 3:
qmod = "Reserved"
self.print_indent("Quantizer %s Mode : %s" % (band,qmod))
else:
mode = 0
if mode == 0:
qp = self.get_bits(8)
self.print_indent("Quantizer %s QP : %s" % (band,qp))
elif mode == 1:
qp = self.get_bits(8)
self.print_indent("Quantizer %s QP Luma : %s" % (band,qp))
qp = self.get_bits(8)
self.print_indent("Quantizer %s QP Chroma : %s" % (band,qp))
elif mode == 2:
for i in range(0,comps):
qp = self.get_bits(8)
self.print_indent("Quantizer %s QP %2d : %s" % (band,i,qp))
self.indent -= 1
def parse_image_plane_header(self,alpha):
if alpha:
self.print_indent("Image Plane Header Contents (for Alpha Plane):")
else:
self.print_indent("Image Plane Header Contents:")
self.indent += 1
flags=ord(self.infile.read(1))
cfmt = (flags & 0xe0) >> 5
if cfmt == 0:
cformat = "YOnly"
comps = 1
elif cfmt == 1:
cformat = "YUV420"
comps = 3
elif cfmt == 2:
cformat = "YUV422"
comps = 3
elif cfmt == 3:
cformat = "YUV444"
comps = 3
elif cfmt == 4:
cformat = "YUVK"
comps = 4
elif cfmt == 5:
cformat = "Reserved (5)"
comps = 0
elif cfmt == 6:
cformat = "N Component"
comps = 0 # later
elif cfmt == 7:
cformat = "Reserved (7)"
comps = 0
self.print_indent("Internal Color Fmt: %s" % cformat)
if flags & 0x10 != 0:
scaled = "Enabled"
else:
scaled = "Disabled"
self.print_indent("Output Scaling : %s" % scaled)
bands = flags & 0x0f
self.num_bands = bands
if bands == 0:
bd = "All Subbands Present"
self.num_bands = 4
elif bands == 1:
bd = "No Flexbits"
self.num_bands = 3
elif bands == 2:
bd = "Flexbits and Highpasses not Present"
self.num_bands = 2
elif bands == 3:
bd = "Only DC Band Present"
self.num_bands = 1
else:
bd = "Reserved (%d)" % bands
self.num_bands = 0
self.print_indent("Included Bands : %s" % bd)
if cfmt == 1 or cfmt == 2 or cfmt == 3:
flags = ord(self.infile.read(1))
self.print_indent("Chroma Centering X: %d" % (flags >> 4))
self.print_indent("Chroma Centering Y: %d" % (flags & 0x0f))
elif cfmt == 6:
comps = ord(self.infile.read(1))
if (comps >> 4) == 15:
comps = ((comps & 0x0f) | (ord(self.infile.read(1)))) + 16
else:
self.print_indent("Reserved H : %d" % (comps & 0x0f))
comps = ((comps >> 4) + 1)
self.print_indent("Components : %d" % comps)
self.num_components = comps
if self.output_bitdepth == 2 or self.output_bitdepth == 3 or self.output_bitdepth == 6:
flags=ord(self.infile.read(1))
self.print_indent("Output Upshift : %d" % flags)
elif self.output_bitdepth == 7:
flags=ord(self.infile.read(1))
self.print_indent("Mantissa Length : %d" % flags)
flags=ord(self.infile.read(1))
self.print_indent("Exponent Bias : %d" % flags)
dcuniform = self.get_bits(1)
if dcuniform == 1:
uni = "Uniform"
else:
uni = "Variable"
self.dc_variable = True
self.print_indent("DC Quantization : %s" % uni)
if dcuniform:
self.parse_quantizer(comps,"DC ")
if bands != 3:
self.print_indent("Reserved I : %d" % self.get_bits(1))
lpuniform = self.get_bits(1)
if lpuniform == 1:
uni = "Uniform"
else:
uni = "Variable"
self.lp_variable = True
self.print_indent("LP Quantization : %s" % uni)
if lpuniform:
self.parse_quantizer(comps,"LP ")
if bands != 2:
self.print_indent("Reserved J : %d" % self.get_bits(1))
hpuniform = self.get_bits(1)
if hpuniform == 1:
uni = "Uniform"
else:
uni = "Variable"
self.hp_variable = True
self.print_indent("HP Quantization : %s" % uni)
if hpuniform:
self.parse_quantizer(comps,"HP ")
self.align_to_byte()
self.indent -= 1
def vlw_esc(self):
first = ord(self.infile.read(1))
if first < 0xfb:
second = ord(self.infile.read(1))
return (first << 8) | second
elif first == 0xfb:
return ordl(self.infile.read(4))
elif first == 0xfc:
return ordq(self.infile.read(8))
else:
return 0
def parse_table_tiles(self):
self.print_indent("Index Table Tiles Contents:")
self.indent += 1
if self.frequency_mode:
entries = self.num_bands * self.tiles_wide * self.tiles_high
else:
entries = self.tiles_wide * self.tiles_high
startcode = ordw(self.infile.read(2))
self.print_indent("Start Code : 0x%04lx" % startcode)
self.print_indent("Number of Entries : %d" % entries)
self.tile_offsets = []
for i in range(0,entries):
offset = self.vlw_esc()
self.tile_offsets.append(offset)
self.print_indent("Tile %4d Offset: 0x%08lx" % (i,offset))
def tile_header_DC(self,alpha):
if alpha:
plane = "DC (alpha)"
comps = 1
self.print_indent("Tile Header DC (alpha)")
else:
plane = "DC "
comps = self.num_components
self.print_indent("Tile Header DC")
if self.dc_variable:
self.parse_quantizer(comps,plane)
def tile_header_LP(self,alpha):
if alpha:
plane = "LP %2d (alpha)"
comps = 1
self.print_indent("Tile Header LP (alpha)")
else:
plane = "LP %2d "
comps = self.num_components
self.print_indent("Tile Header LP")
if self.lp_variable:
quant = self.get_bits(1)
if quant == 0:
var = "Enabled"
else:
var = "Disabled"
self.print_indent("Variable LP Quant : %s" % var)
if quant == 0:
numqp = self.get_bits(4) + 1
self.print_indent("Number of Quantizers : %d" % numqp)
for i in range(0,numqp):
self.parse_quantizer(comps,plane % i)
def tile_header_HP(self,alpha):
if alpha:
plane = "HP %2d (alpha)"
comps = 1
self.print_indent("Tile Header HP (alpha)")
else:
plane = "HP %2d "
comps = self.num_components
self.print_indent("Tile Header HP")
if self.hp_variable:
quant = self.get_bits(1)
if quant == 0:
var = "Enabled"
else:
var = "Disabled"
self.print_indent("Variable HP Quant : %s" % var)
if quant == 0:
numqp = self.get_bits(4) + 1
self.print_indent("Number of Quantizers : %d" % numqp)
for i in range(0,numqp):
self.parse_quantizer(comps,plane % i)
def tile_DC(self,tile):
self.print_indent("Tile %d (DC) :" % tile)
self.indent += 1
startcode = ordl(self.infile.read(4))
self.print_indent("Start code : 0x%08lx" % startcode)
if self.num_bands > 1:
self.tile_header_DC(False)
if self.alpha_present:
self.tile_header_DC(True)
self.align_to_byte()
self.indent -= 1
def tile_LP(self,tile):
self.print_indent("Tile %d (LP) :" % tile)
self.indent += 1
startcode = ordl(self.infile.read(4))
self.print_indent("Start code : 0x%08lx" % startcode)
self.tile_header_LP(False)
if self.alpha_present:
self.tile_header_LP(True)
self.align_to_byte()
self.indent -= 1
def tile_HP(self,tile):
self.print_indent("Tile %d (HP) :" % tile)
self.indent += 1
startcode = ordl(self.infile.read(4))
self.print_indent("Start code : 0x%08lx" % startcode)
if self.num_bands > 2:
self.tile_header_HP(False)
if self.alpha_present:
self.tile_header_HP(True)
self.align_to_byte()
self.indent -= 1
def tile_FlexBits(self,tile):
self.print_indent("Tile %d (FlexBits) :" % tile)
self.indent += 1
startcode = ordl(self.infile.read(4))
self.print_indent("Start code : 0x%08lx" % startcode)
if self.trim_flexbits:
self.print_indent("Trim Flexbits : %d" % self.get_bits(4))
self.align_to_byte()
self.indent -= 1
def tile_Spatial(self,tile):
self.print_indent("Tile %d (spatial mode):" % tile)
self.indent += 1
startcode = ordl(self.infile.read(4))
self.print_indent("Start code : 0x%08lx" % startcode)
if self.trim_flexbits:
self.print_indent("Trim Flexbits : %d" % self.get_bits(4))
self.tile_header_DC(False)
if self.num_bands > 1:
self.tile_header_LP(False)
if self.num_bands > 2:
self.tile_header_HP(False)
if self.alpha_present:
self.tile_header_DC(True)
if self.num_bands > 1:
self.tile_header_LP(True)
if self.num_bands > 2:
self.tile_header_HP(True)
self.align_to_byte()
self.indent -= 1
def parse_profile_info(self):
self.print_indent("Profile Information")
last = False
while last == False:
profile = self.get_bits(8)
level = self.get_bits(8)
if profile <= 44:
prof = "Subbaseline"
elif profile <= 55:
prof = "Baseline"
elif profile <= 66:
prof = "Main"
elif profile <= 111:
prof = "Advanced"
else:
prof = "Unknown"
self.print_indent("Profile : %s (%d)" % (prof,profile))
self.print_indent("Level : 0x%02x" % level)
self.print_indent("Reserved L : 0x%04lx" % self.get_bits(15))
if self.get_bits(1) == 1:
last = True
def parse(self):
self.indent += 1
self.parse_image_header()
print()
self.print_position()
self.parse_image_plane_header(False)
if self.alpha_present == True:
print()
self.print_position()
self.parse_image_plane_header(True)
if self.index_table_present == True:
print()
self.print_position()
self.parse_table_tiles()
subseqnt = self.vlw_esc()
if subseqnt > 0:
current = self.infile.tell()
print()
self.print_position()
self.parse_profile_info()
self.infile.seek(current + subseqnt)
print()
num_tiles = self.tiles_wide * self.tiles_high
base = self.infile.tell()
if self.frequency_mode:
for i in range(0,num_tiles):
self.infile.seek(base + self.tile_offsets[i * self.num_bands])
self.print_position()
self.tile_DC(i)
if self.num_bands > 1:
for i in range(0,num_tiles):
self.infile.seek(base + self.tile_offsets[i * self.num_bands + 1])
self.print_position()
self.tile_LP(i)
if self.num_bands > 2:
for i in range(0,num_tiles):
self.infile.seek(base + self.tile_offsets[i * self.num_bands + 2])
self.print_position()
self.tile_HP(i)
if self.num_bands > 3:
for i in range(0,num_tiles):
self.infile.seek(base + self.tile_offsets[i * self.num_bands + 3])
self.print_position()
self.tile_FlexBits(i)
elif num_tiles > 1:
for i in range(0,num_tiles):
self.infile.seek(base + self.tile_offsets[i])
self.print_position()
self.tile_Spatial(i)
else:
self.print_position()
self.tile_Spatial(0)
class JXRFile:
def __init__(self,file,endian = 0):
self.infile = file
self.indent = 0
self.offset = 0
self.endian = endian
self.coffset = NotImplemented
self.csize = NotImplemented
self.aoffset = NotImplemented
self.asize = NotImplemented
def readshort(self):
if self.endian == 0:
return lordw(self.infile.read(2))
else:
return ordw(self.infile.read(2))
def readlong(self):
if self.endian == 0:
return lordl(self.infile.read(4))
else:
return ordl(self.infile.read(4))
def readquad(file):
if self.endian == 0:
return lordq(self.infile.read(8))
else:
return ordq(self.infile.read(8))
def print_hex(self, buffer):
print_hex(buffer,self.indent)
def print_indent(self, buffer, nl = 1):
print_indent(buffer, self.indent, nl)
def print_position(self):
print("0x%08lx:" % self.infile.tell())
def pxFormatToString(self,values):
uuid = 0
for i in range(0,16):
uuid = (uuid << 8) | values[i]
if uuid == 0x24C3DD6F034EFE4BB1853D77768DC90D:
return "24bppRGB"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC90C:
return "24bppBGR"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC90E:
return "32bppBGR"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC915:
return "48bppRGB"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC912:
return "48bppRGBFixedPoint"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC93B:
return "48bppRGBHalf"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC918:
return "96bppRGBFixedPoint"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC940:
return "64bppRGBFixedPoint"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC942:
return "64bppRGBHalf"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC941:
return "128bppRGBFixedPoint"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC91B:
return "128bppRGBFloat"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC90F:
return "32bppBGRA"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC916:
return "64bppRGBA"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC91D:
return "64bppRGBAFixedPoint"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC93A:
return "64bppRGBAHalf"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC91E:
return "128bppRGBAFixedPoint"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC919:
return "128bppRGBAFloat"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC910:
return "32bppPBGRA"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC917:
return "64bppPRGBA"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC91A:
return "128bppPRGBAFloat"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC91C:
return "32bppCMYK"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC92C:
return "40bppCMYKAlpha"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC91F:
return "64bppCMYK"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC92D:
return "80bppCMYKAlpha"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC920:
return "24bpp3Channels"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC921:
return "32bpp4Channels"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC922:
return "40bpp5Channels"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC923:
return "48bpp6Channels"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC924:
return "56bpp7Channels"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC925:
return "64bpp8Channels"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC92E:
return "32bpp3ChannelsAlpha"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC92F:
return "40bpp4ChannelsAlpha"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC930:
return "48bpp5ChannelsAlpha"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC931:
return "56bpp6ChannelsAlpha"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC932:
return "64bpp7ChannelsAlpha"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC933:
return "72bpp8ChannelsAlpha"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC926:
return "48bpp3Channels"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC927:
return "64bpp4Channels"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC928:
return "80bpp5Channels"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC929:
return "96bpp6Channels"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC92A:
return "112bpp7Channels"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC92B:
return "128bpp8Channels"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC934:
return "64bpp3ChannelsAlpha"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC935:
return "80bpp4ChannelsAlpha"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC936:
return "96bpp5ChannelsAlpha"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC937:
return "112bpp6ChannelsAlpha"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC938:
return "128bpp7ChannelsAlpha"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC939:
return "144bpp8ChannelsAlpha"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC908:
return "8bppGray"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC90B:
return "16bppGray"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC913:
return "16bppGrayFixedPoint"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC93E:
return "16bppGrayHalf"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC93F:
return "32bppGrayFixedPoint"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC911:
return "32bppGrayFloat"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC905:
return "BlackWhite"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC909:
return "16bppBGR555"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC90A:
return "16bppBGR565"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC914:
return "32bppBGR101010"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC93D:
return "32bppRGBE"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC954:
return "32bppCMYKDIRECT"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC955:
return "64bppCMYKDIRECT"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC956:
return "40bppCMYKDIRECTAlpha"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC943:
return "80bppCMYKDIRECTAlpha"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC944:
return "12bppYCC420"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC945:
return "16bppYCC422"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC946:
return "20bppYCC422"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC947:
return "32bppYCC422"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC948:
return "24bppYCC444"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC949:
return "30bppYCC444"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC94A:
return "48bppYCC444"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC94B:
return "48bppYCC444FixedPoint"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC94C:
return "20bppYCC420Alpha"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC94D:
return "24bppYCC422Alpha"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC94E:
return "30bppYCC422Alpha"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC94F:
return "48bppYCC422Alpha"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC950:
return "32bppYCC444Alpha"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC951:
return "40bppYCC444Alpha"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC952:
return "64bppYCC444Alpha"
elif uuid == 0x24C3DD6F034EFE4BB1853D77768DC953:
return "64bppYCC444AlphaFixedPoint"
else:
return "Unknown (0x%016x)" % uuid
def print_rotation(self,values):
rot = ""
if values[0] == 0:
rot = "Upright"
if values[0] & 1 != 0:
rot += "Flip Vertical "
if values[0] & 2 != 0:
rot += "Flip Horizontal "
if values[0] & 4 != 0:
rot += "Rotate Clockwise "
self.print_indent("Orientation : %s" % rot)
def print_colorspace(self,values):
if values[0] == 1:
cspace = "sRGB"
elif values[0] == 0xffff:
cspace = "sRGB not preferred"
else:
cspace = "Reserved (%d)" % values[0]
self.print_indent("Colorspace : %s" % cspace)
def print_imagetype(self,values):
itype = ""
if values[0] == 0:
itype = "Standard"
if values[0] & 1:
itype += "Preview "
if values[0] & 2:
itype += "Page "
self.print_indent("Image Type : %s" % itype)
def print_colorinfo(self,values):
if values[0] == 1:
primaries = "Rec 709"
elif values[0] == 2:
primaries = "Application Specific"
elif values[0] == 4:
primaries = "Rec 470-6"
elif values[0] == 5:
primaries = "Rec 601 (625)"
elif values[0] == 6:
primaries = "Rec 601 (525)"
elif values[0] == 7:
primaries = "SMTPE 240M"
else:
primaries = "Reserved (%d)" % values[0]
if values[1] == 1:
transfer = "Rec 709"
elif values[1] == 2:
transfer = "Application Specific"
elif values[1] == 4:
transfer = "Gamma 2.2"
elif values[1] == 5:
transfer = "Gamma 2.8"
elif values[1] == 6:
transfer = "Rec 601 (525)"
elif values[1] == 7:
transfer = "SMTPE 240M"
elif values[1] == 8:
transfer = "Linear"
elif values[1] == 11:
transfer = "xvYCC"
elif values[1] == 12:
transfer = "Rec 361"
elif values[1] == 13:
transfer = "sRGB"
else:
transfer = "Reserved (%d)" % values[1]
if values[2] == 0:
matrix = "None"
elif values[2] == 1:
matrix = "Rec 709"
elif values[2] == 2:
matrix = "Application Specific"
elif values[2] == 4:
matrix = "US Title 47"
elif values[2] == 5:
matrix = "Rec 601 (625)"
elif values[2] == 6:
matrix = "Rec 601 (525)"
elif values[2] == 7:
matrix = "SMTPE 240M"
elif values[2] == 8:
matrix = "YCgCo"
else:
matrix = "Reserved (%d)" % values[2]
flags = values[3] >> 1
if values[3] & 1:
crange = "Full Range"
else:
crange = "Reduced Range"
self.print_indent("Primaries : %s" % primaries)
self.print_indent("Transfer Function : %s" % transfer)
self.print_indent("Matrix : %s" % matrix)
self.print_indent("Reserved K : 0x%02x" % flags)
self.print_indent("Range : %s" % crange)
def print_profileinfo(self,values):
last = False
idx = 0
while last == False:
profile = values[idx]
level = values[idx+1]
flags = (values[idx+2] << 8) | values[idx+3]
if profile <= 44:
prof = "Subbaseline"
elif profile <= 55:
prof = "Baseline"
elif profile <= 66:
prof = "Main"
elif profile <= 111:
prof = "Advanced"
else:
prof = "Unknown"
self.print_indent("Profile : %s (%d)" % (prof,profile))
self.print_indent("Level : 0x%02x" % level)
self.print_indent("Reserved L : 0x%04lx" % (flags >> 1))
if flags & 1:
last = True
idx += 3
def parse_exif(self,offset):
current = self.infile.tell()
self.infile.seek(offset)
count = self.readshort()
for i in range(0,count):
self.parse_ifd_entry()
self.infile.seek(current)
def print_componentsconfig(self,buffer):
self.print_indent("Components Config :")
px = ""
for i in range(0,len(buffer)):
c = ord(buffer[i])
if c == 0:
px += "not present "
elif c == 1:
px += "Y "
elif c == 2:
px += "Cb "
elif c == 3:
px += "Cr "
elif c == 4:
px += "R "
elif c == 5:
px += "G "
elif c == 6:
px += "B "
else:
px += "reserved (%d) " % c
self.print_indent("Pixel %2d Config : %s" % (i+1,px))
def print_usercomment(self,buffer):
ctype = ordq(buffer[0:8])
if ctype == 0x4153424949000000:
comment = buffer[8:]
coding = "ASCII"
elif ctype == 0x4a49530000000000:
comment = "???"
coding = "JIS"
elif ctype == 0x554e49434f444500:
comment = buffer[8:]
coding = "UNICODE"
else:
comment = "???"