def __init__(self, file, offset, size, type, is_64, start):
StreamFullAtom.__init__(self, file, offset, size, type, is_64, start)
self.copy = True
# Set stsc metadat
self._set_attr('entry_count', read32(self.file))
# Verify that stsc exists
if (self.get_attribute('entry_count') == 0):
raise MalformedMP4()
entries = []
while self.file.tell() < (offset+size):
chunk = read32(self.file)
if self.file.tell() > (offset+size):
raise MalformedMP4()
samples = read32(self.file)
if self.file.tell() > (offset+size):
raise MalformedMP4()
id = read32(self.file)
if self.file.tell() > (offset+size):
raise MalformedMP4()
entries.append((chunk, samples, id))
if self.get_attribute('entry_count') != len(entries):
raise MalformedMP4()
else:
self._set_attr('entries', entries)
def __init__(self, file, offset, size, type, is_64, start):
StreamFullAtom.__init__(self, file, offset, size, type, is_64, start)
self.copy = True
# Set stsc metadat
self._set_attr('entry_count', read32(self.file))
# Verify that stsc exists
if (self.get_attribute('entry_count') == 0):
raise MalformedMP4()
entries = []
while self.file.tell() < (offset + size):
chunk = read32(self.file)
if self.file.tell() > (offset + size):
raise MalformedMP4()
samples = read32(self.file)
if self.file.tell() > (offset + size):
raise MalformedMP4()
id = read32(self.file)
if self.file.tell() > (offset + size):
raise MalformedMP4()
entries.append((chunk, samples, id))
if self.get_attribute('entry_count') != len(entries):
raise MalformedMP4()
else:
self._set_attr('entries', entries)
def __init__(self, file, offset, size, type, is_64, start):
StreamFullAtom.__init__(self, file, offset, size, type, is_64, start)
# Obtain necessary metadata
if (self.version == 1):
self.file.seek(24, os.SEEK_CUR)
self._set_attr('duration', read64(self.file))
else:
self.file.seek(16, os.SEEK_CUR)
self._set_attr('duration', read32(self.file))
self.copy = True
def __init__(self, file, offset, size, type, is_64, start):
StreamFullAtom.__init__(self, file, offset, size, type, is_64, start)
# Obtain necessary metadata
if (self.version == 1):
self.file.seek(24, os.SEEK_CUR)
self._set_attr('duration', read64(self.file))
else:
self.file.seek(16, os.SEEK_CUR)
self._set_attr('duration', read32(self.file))
self.copy = True
def __init__(self, file, offset, size, type, is_64, start):
StreamFullAtom.__init__(self, file, offset, size, type, is_64, start)
self.copy = True
# Obtain metadata
self._set_attr('chunk_count', read32(self.file))
entries = []
while self.file.tell() < (offset+size):
chunk_offset = read64(self.file)
if self.file.tell() > (offset+size):
raise MalformedMP4()
entries.append(chunk_offset)
if self.get_attribute('chunk_count') != len(entries):
raise MalformedMP4()
else:
self._set_attr('entries', entries)
def __init__(self, file, offset, size, type, is_64, start):
StreamFullAtom.__init__(self, file, offset, size, type, is_64, start)
self.copy = True
# Obtain metadata
self._set_attr('chunk_count', read32(self.file))
entries = []
while self.file.tell() < (offset + size):
chunk_offset = read64(self.file)
if self.file.tell() > (offset + size):
raise MalformedMP4()
entries.append(chunk_offset)
if self.get_attribute('chunk_count') != len(entries):
raise MalformedMP4()
else:
self._set_attr('entries', entries)
def __init__(self, file, offset, size, type, is_64, start):
StreamFullAtom.__init__(self, file, offset, size, type, is_64, start)
self.copy = True
# Set ctts metadat
self._set_attr('entry_count', read32(self.file))
entries = []
while self.file.tell() < (offset+size):
count = read32(self.file)
if self.file.tell() > (offset+size):
raise MalformedMP4()
soffset = read32(self.file)
if self.file.tell() > (offset+size):
raise MalformedMP4()
entries.append((count, soffset))
if self.get_attribute('entry_count') != len(entries):
raise MalformedMP4()
else:
self._set_attr('entries', entries)
def __init__(self, file, offset, size, type, is_64, start):
StreamFullAtom.__init__(self, file, offset, size, type, is_64, start)
self.copy = True
# Set ctts metadat
self._set_attr('entry_count', read32(self.file))
entries = []
while self.file.tell() < (offset + size):
count = read32(self.file)
if self.file.tell() > (offset + size):
raise MalformedMP4()
soffset = read32(self.file)
if self.file.tell() > (offset + size):
raise MalformedMP4()
entries.append((count, soffset))
if self.get_attribute('entry_count') != len(entries):
raise MalformedMP4()
else:
self._set_attr('entries', entries)
def __init__(self, file, offset, size, type, is_64, start):
StreamFullAtom.__init__(self, file, offset, size, type, is_64, start)
self.copy = True
# Set stsz metadata
self._set_attr('uniform_size', read32(self.file))
self._set_attr('entry_count', read32(self.file))
self.uniform = True
if self.get_attribute('uniform_size') == 0:
self.uniform = False
entries = []
while self.file.tell() < (offset+size):
entry = read32(self.file)
if self.file.tell() > (offset+size):
raise MalformedMP4()
entries.append(entry)
if self.get_attribute('entry_count') != len(entries):
raise MalformedMP4()
else:
self._set_attr('entries', entries)
def __init__(self, file, offset, size, type, is_64, start):
StreamFullAtom.__init__(self, file, offset, size, type, is_64, start)
self.copy = True
# Set stsz metadata
self._set_attr('uniform_size', read32(self.file))
self._set_attr('entry_count', read32(self.file))
self.uniform = True
if self.get_attribute('uniform_size') == 0:
self.uniform = False
entries = []
while self.file.tell() < (offset + size):
entry = read32(self.file)
if self.file.tell() > (offset + size):
raise MalformedMP4()
entries.append(entry)
if self.get_attribute('entry_count') != len(entries):
raise MalformedMP4()
else:
self._set_attr('entries', entries)
def __init__(self, file, offset, size, type, is_64, start):
StreamFullAtom.__init__(self, file, offset, size, type, is_64, start)
# Obtain necessary metadata
if (self.version == 1):
self.file.seek(16, os.SEEK_CUR)
self._set_attr('timescale', read32(self.file))
self._set_attr('duration', read64(self.file))
else:
self.file.seek(8, os.SEEK_CUR)
self._set_attr('timescale', read32(self.file))
self._set_attr('duration', read32(self.file))
# As an optimization, verify that given start is less than duration
duration = self.get_attribute('duration')
timescale = self.get_attribute('timescale')
stream_duration = duration - (int(self.start) * timescale / 1000)
if stream_duration < 0:
raise StartOutOfRange()
else:
# Save timescale to global for use in tkhd update
self.timescale = timescale
self.copy = True
def __init__(self, file, offset, size, type, is_64, start):
StreamFullAtom.__init__(self, file, offset, size, type, is_64, start)
# Obtain necessary metadata
if (self.version == 1):
self.file.seek(16, os.SEEK_CUR)
self._set_attr('timescale', read32(self.file))
self._set_attr('duration', read64(self.file))
else:
self.file.seek(8, os.SEEK_CUR)
self._set_attr('timescale', read32(self.file))
self._set_attr('duration', read32(self.file))
# As an optimization, verify that given start is less than duration
duration = self.get_attribute('duration')
timescale = self.get_attribute('timescale')
stream_duration = duration - (int(self.start) * timescale / 1000)
if stream_duration < 0:
raise StartOutOfRange()
else:
# Save timescale to global for use in tkhd update
self.timescale = timescale
self.copy = True
