def __init__(self, f):
'''
:param bytes: array of bytes payload
'''
self._TMD = read.ucb(f)>>6
if self._TMD == 0x1 or self._TMD == 0x2:
# 36 bit STM time, followed by 4 bit reserved data
# followed by 24 bit data_unit_loop_length.
# We'll read all that as a single 64 bit value and break it up
d = read.ulb(f)
self.STM = d >> 28
self._data_unit_loop_length = d & 0xffffffff
if DEBUG:
print 'CaptionStatementData: STM (time) ' + str(self.STM)
print 'CaptionStatementData: data unit loop length: ' + str(self._data_unit_loop_length)
else:
self.STM = 0
self._data_unit_loop_length = read.ui3b(f)
if DEBUG:
print 'Caption statement: data unit loop length: ' + str(self._data_unit_loop_length)
bytes_read = 0
self._data_units = []
while bytes_read < self._data_unit_loop_length:
self._data_units.append(DataUnit(f))
bytes_read += self._data_units[-1].size()
def __init__(self, f):
"""
"""
self.TMD = read.ucb(f) >> 6
if self.TMD == 0b10:
_t = read.uib(f)
_ub = read.uic(f) >> 4
self._OTM = _t | (_ub << 32)
if DEBUG:
print("Caption management OTM: " + str(self._OTM))
self._num_languages = read.ucb(f)
self._languages = []
for lang in range(self._num_languages):
self._languages.append(Language(f))
self._data_unit_loop_length = read.ui3b(f)
if DEBUG:
print('Caption managmentdata : data unit loop length: ' +
str(self._data_unit_loop_length))
bytes_read = 0
self._data_units = []
while bytes_read < self._data_unit_loop_length[0]:
self._data_units.append(DataUnit(f))
bytes_read += self._data_units[-1].size()
def __init__(self, f):
self._unit_separator = read.ucb(f)
if(self._unit_separator is not 0x1f):
if DEBUG:
print 'Unit separator not found at start of data unit.'
raise ValueError
self._data_unit_type = read.ucb(f)
if DEBUG:
print 'data unit type: ' + str(self._data_unit_type)
self._data_unit_size = read.ui3b(f)
if DEBUG:
print 'DataUnit size found to be: ' + str(self._data_unit_size)
#self._payload = f.read(self._data_unit_size)
self._payload = self.load_unit(f)
def __init__(self, f):
self._unit_separator = read.ucb(f)
if(self._unit_separator is not 0x1f):
if DEBUG:
print 'Unit separator not found at start of data unit.'
raise ValueError
self._data_unit_type = read.ucb(f)
if DEBUG:
print 'data unit type: ' + str(self._data_unit_type)
self._data_unit_size = read.ui3b(f)
if DEBUG:
print 'DataUnit size found to be: ' + str(self._data_unit_size)
#self._payload = f.read(self._data_unit_size)
self._payload = self.load_unit(f)
def __init__(self, f):
'''
:param bytes: array of bytes payload
'''
self._TMD = read.ucb(f)>>6
if self._TMD == 0x01 or self._TMD == 0X10:
self.STM = 0#TODO: read four bytes
else:
self.STM = 0
self._data_unit_loop_length = read.ui3b(f)
if DEBUG:
print 'Caption statement: data unit loop length: ' + str(self._data_unit_loop_length)
#self._payload = f.read(self._data_unit_loop_length)
bytes_read = 0
self._data_units = []
while bytes_read < self._data_unit_loop_length:
self._data_units.append(DataUnit(f))
bytes_read += self._data_units[-1].size()
def __init__(self, f):
'''
:param bytes: array of bytes payload
'''
self._TMD = read.ucb(f) >> 6
if self._TMD == 0x01 or self._TMD == 0X10:
self.STM = 0 #TODO: read four bytes
else:
self.STM = 0
self._data_unit_loop_length = read.ui3b(f)
if DEBUG:
print 'Caption statement: data unit loop length: ' + str(
self._data_unit_loop_length)
#self._payload = f.read(self._data_unit_loop_length)
bytes_read = 0
self._data_units = []
while bytes_read < self._data_unit_loop_length:
self._data_units.append(DataUnit(f))
bytes_read += self._data_units[-1].size()
def __init__(self, f):
"""
"""
self.TMD = read.ucb(f) >> 6
if self.TMD == 0b10:
_t = read.uib(f)
_ub = read.uic(f) >> 4
self._OTM = _t | (_ub << 32)
if DEBUG:
print "Caption management OTM: " + str(self._OTM)
self._num_languages = read.ucb(f)
self._languages = []
for lang in range(self._num_languages):
self._languages.append(Language(f))
self._data_unit_loop_length = read.ui3b(f)
if DEBUG:
print 'Caption managmentdata : data unit loop length: ' + str(self._data_unit_loop_length)
bytes_read = 0
self._data_units = []
while bytes_read < self._data_unit_loop_length:
self._data_units.append(DataUnit(f))
bytes_read += self._data_units[-1].size()
