def testMJD_UTC_Convertion(self):
#test mjd + utc convertion
test_data = array.array('B', hex_to_byte("D641 10 29 40"))
res = dvb_mjd_to_string(None , test_data )
self.assertEqual( "18/1/2009 10:29:40 ", str(res))
#unlimited
test_data = array.array('B', hex_to_byte("FFFFFFFFFF"))
res = dvb_mjd_to_string(None , test_data )
self.assertEqual( "Unlimited", str(res))
#wrong size
test_data = array.array('B', hex_to_byte("FFFFFFFF"))
res = dvb_mjd_to_string(None , test_data )
self.assertEqual( "Didn't parse", str(res))
def main():
# set debug level
if (verbose):
verbose_level = logging.DEBUG
else:
verbose_level = logging.INFO
# Log everything, and send it to stderr.
# create logger
log = logging.getLogger("simple_example")
log.setLevel(verbose_level)
# create console handler and set level to debug
ch = logging.StreamHandler()
ch.setLevel(verbose_level)
# create formatter
formatter = logging.Formatter("%(asctime)s - %(levelname)-8s - %(message)s")
# add formatter to ch
ch.setFormatter(formatter)
# add ch to logger
log.addHandler(ch)
log.debug("open file")
TS_file = openTSFile('''C:\signaling\Xad_14_12.ts''')
print TS_file
SeekPacket(TS_file, 1577717)
for i in range(1000000):
pack = GetPakcet(TS_file, i)
data = array.array('B', pack)
#print len(pack)
#print ByteToHex(pack)
try:
parseTS_Packet(data)
except ValueError:
pass
def testProfileByte_Convertion(self):
#test profile byte convertion
test_data = array.array('B', hex_to_byte("01 000f 01 0014 00 02 01 0002 04 02 00 01 00 08 00 06"))
test_bs = BitStructureExt('TEST')
test_bs.set_array(test_data)
self.assertEqual( 19 , len( test_data ) )
self.assertEqual('!( ( ( A15 < A20 ) and ( A2 == 2 ) ) )',
ProfileByte_to_string(test_bs, len( test_data ), test_data))
def dvb_mjd_to_string( bit_structure=None , byte_array=None ):
'''
convert 5 byte array to string reprsention time
from ETSI EN 300 468
Digital Video Broadcasting (DVB);
Specification for Service Information (SI) in DVB systems
'''
if byte_array is None:
byte_array = array.array('B', bit_structure.array())
if len(byte_array) != 5:
LOG.error("No a DVB MJD: size is not 5 bytes")
return "Didn't parse"
elif byte_to_hex(byte_array.tostring()) == "FF FF FF FF FF":
LOG.error("No a DVB MJD: 0xFFFFFFFFFF")
return "Unlimited"
elif byte_to_hex(byte_array.tostring()) == "00 00 00 00 00":
LOG.error("No a DVB MJD: 0x0000000000")
return "None"
LOG.debug( byte_to_hex(byte_array.tostring()))
bitstruct = BitStructureExt('MJD+UTC')
bitstruct.append(BitFieldExt('MJD', BYTE_SIZE * 2))
bitstruct.append(BitFieldExt('hours', BYTE_SIZE * 1))
bitstruct.append(BitFieldExt('mins', BYTE_SIZE * 1))
bitstruct.append(BitFieldExt('secs', BYTE_SIZE * 1))
bitstruct.set_array (byte_array)
number = bitstruct['MJD']
LOG.debug( "dvb_mjd_to_string got MJD: 0x%x" % number)
y_tag = int((int (number) - 15078.2) / 365.25)
m_tag = int( (int (number) - 14956.1 - int (y_tag * 365.25) ) / 30.6001 )
d = int(number) - 14956 - int (y_tag * 365.25) - int (m_tag * 30.6001 )
if (m_tag == 14) or (m_tag == 15):
k = 1
else:
k = 0
y = y_tag + k
m = m_tag - 1 - k * 12
time_string = "%s/%s/%s %x:%x:%x " % (d, m, 1900+y,
bitstruct['hours'],
bitstruct['mins'],
bitstruct['secs'])
LOG.debug(time_string)
return time_string
def main():
'''main function'''
params = handle_args()
configure_debug(params)
data = None
# TEST PACKET
if (params['testing']):
from xmlrunner import XmlTestRunner
runner = XmlTestRunner()
runner.run(unittest.makeSuite(BitGamesTest))
sys.exit()
# open a file
if(params['input_filename'] != None):
try:
data_file = open(params['input_filename'])
except IOError, err:
print err
sys.exit(2)
data = array.array('B', hex_to_byte(data_file.readline()))
def testMyPacket(self):
# my packet
data = array.array('B', hex_to_byte("000001BD003D8C80052100010001810021050801000101113E80008106110000000000820DA0D100000BB8010104010203040007110000000000000000000000000000"))
(bs, data) = ParsePacket_No_TS_Header(data)
print bs
def testStreamPacket(self):
# stream packet
data = array.array('B', hex_to_byte("000001bd002e8180052b925721bd860021050801000178d17f88008106c3001323d400820d9fc3000002ee010104000000010000"))
(bs, data) = ParsePacket_No_TS_Header(data)
print bs
def testDavidPacket(self):
# david packet
data = array.array('B', hex_to_byte("000001bd008b8c80052100010001810021050801000101113e80008106030000000000820d80c300000bb801010401020304005711ffffffffff018000000001020000000000ffffffffff 13 01000f01001400020100020402000100080006 01000000000102ee0000000000ffffffffff13 01000f0100140002010002040200010008000601000000000102ee00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"))
(bs, data) = ParsePacket_No_TS_Header(data)
print bs
def ProfileByte_to_string ( profileByte , length , data=None):
'''
Parse the profile byte and return a string represntion of it
Table 3 Data Type Definitions
DataType Value Data Length Mnemonic Description
0x00 8 bits uimsbf This specifies that the proceeding data byte defines an evaluation that should take place. The set of valid values is defined in Table 4
0x01 16 bits uimsbf (MSBF) This signals that the data represents a Profile attribute. The STB shall retrieve the value associated with this Profile Attribute.
0x02 16 bits uimsbf (MSBF) A 16 bit unsigned int value
0x03 32 bits uimsbf (MSBF) A 32 bit unsigned int value
0x04 8 bits uimsbf (MSBF) An 8 bit unsigned int value
0x05 variable blsbf A null terminated ASCII string of variable length.
Table 4 Operator data values
Data Value Description
0x01 Signals an "equals" comparison
0x02 Signals a "less than" comparison
0x03 Signals a "greater than" comparison
0x04 Signals a "less than or equals" comparison
0x05 Signals a "greater than or equals" comparison
0x06 Signals a "not" comparison
0x07 Signals a "not equals" comparison
0x08 Signals an "AND" comparison
0x09 Signals an "OR" comparison
'''
operators = [ "==", "<", ">", "<=", ">=", "!=", "and", "or"]
one_opt = ["!"]
if (data == None):
data = array.array('B', profileByte.array())
bs = BitStructureExt("PROFILE")
byte_to_read = length
i = 0
s = []
while (byte_to_read > 0):
LOG.debug ("ProfileByte_to_string: byte_to_read = " + str(byte_to_read))
bs.append(BitFieldExt('Type_' +str(i) , BYTE_SIZE * 1))
byte_to_read -= 1
bs.set_array(data)
type = bs['Type_' + str(i) ]
if (type == 0x0):
# take 8 bits
bs.append(BitFieldExt('Value_' +str(i) , BIT_SIZE * 8))
byte_to_read -= 1
bs.set_array(data)
predicte = bs['Value_' +str(i)]
if (predicte == 0x01):
s.append("==")
elif (predicte == 0x02):
s.append("<")
elif (predicte == 0x03):
s.append(">")
elif (predicte == 0x04):
s.append("<=")
elif (predicte == 0x05):
s.append(">=")
elif (predicte == 0x06):
s.append("!")
elif (predicte == 0x07):
s.append("!=")
elif (predicte == 0x08):
s.append("and")
elif (predicte == 0x09):
s.append("or")
else:
LOG.error ("Not a valid predicte inside a profile Byte: " + str (predicte))
return "ERROR !!! in ProfileByte_to_string"
elif (type == 0x1):
# take 16 bits
bs.append(BitFieldExt('Value_' +str(i) , BYTE_SIZE * 2))
byte_to_read -= 2
bs.set_array(data)
value = bs['Value_' +str(i)]
s.append("A" + str(value))
elif (type == 0x2):
# take 16 bits
bs.append(BitFieldExt('Value_' +str(i) , BYTE_SIZE * 2))
byte_to_read -= 2
bs.set_array(data)
value = bs['Value_' +str(i)]
s.append(str(value))
elif (type == 0x3):
#take 32 bits
bs.append(BitFieldExt('Value_' +str(i) , BYTE_SIZE * 4))
byte_to_read -= 4
bs.set_array(data)
value = bs['Value_' +str(i)]
s.append(str(value))
elif (type == 0x4):
#take 8 bits
bs.append(BitFieldExt('Value_' +str(i) , BIT_SIZE * 8))
byte_to_read -= 1
bs.set_array(data)
value = bs['Value_' +str(i)]
s.append(str(value))
elif (type == 0x5):
# take how to take null terminated ???
LOG.error ("No Support for null terminated vaule yet. ")
return "ERROR !!! in ProfileByte_to_string"
else:
LOG.error ("No a valid type inside a profile Byte: " + str(type) )
return "ERROR !!! in ProfileByte_to_string"
i += 1
temp_str = ""
stack = []
for item in s:
if item in operators:
temp_str = "( " + str(stack.pop(-2)) + " " + str(item)+" " +str(stack.pop(-1))+ " )"
LOG.debug (temp_str)
stack.append(temp_str)
elif item in one_opt:
temp_str = str(item)+"( " +str(stack.pop(-1))+ " )"
LOG.debug (temp_str)
stack.append(temp_str)
else:
stack.append(item)
LOG.debug (str(stack))
#Data Type Definitions
return str(stack.pop(-1))
