def footer_partition_parse(self):
""" Parse MXF footer partition. """
# SMTPE 377M: Footer Partition Pack
footer_partition_pack = MXFPartition(self.fd)
footer_partition_pack.read()
self.data['footer']['partition'] = footer_partition_pack
key = InterchangeObject.get_key(self.fd)
if key in ('060e2b34010101010201021001000000',
'060e2b34010101010301021001000000'):
# KLV Fill item
klv = KLVFill(self.fd)
klv.read()
self.data['footer']['klvs'].append(klv)
def footer_extra_parse(self):
# Read file's end
key = InterchangeObject.get_key(self.fd)
while key != '060e2b34020501010d01020101110100':
if key in (
'060e2b34010101010201021001000000',
'060e2b34010101010301021001000000'
):
# KLV Fill item
klv = KLVFill(self.fd)
klv.read()
else:
# 060e2b34025301010d01020101100100 -> Index Table Segment
klv = KLVDarkComponent(self.fd)
klv.read()
print klv
self.data['footer']['klvs'].append(klv)
key = InterchangeObject.get_key(self.fd)
# SMTPE 377M: Random Index Pack (optional after Footer Partition)
if key != '060e2b34020501010d01020101110100':
raise Exception('Invalid RandomIndexMetadata key: %s' % InterchangeObject.get_key(self.fd))
random_index_pack = RandomIndexMetadata(self.fd)
random_index_pack.read()
self.data['footer']['klvs'].append(random_index_pack)
self.data['footer']['random_index_pack'] = random_index_pack
def header_metadata_parse(self):
dark = 0
header_metadata_preface = None
header_end = self.fd.tell() + self.data['header']['partition'].data['header_byte_count']
while self.fd.tell() <= header_end:
fd = self.fd
key = InterchangeObject.get_key(self.fd)
if key in ('060e2b34010101010201021001000000', \
'060e2b34010101010301021001000000'):
# KLV Fill item
klv = KLVFill(fd)
klv.read()
elif key == '060e2b34020501010d01020101050100':
# SMTPE 377M: Header Metadata (Primer Pack)
#if not isinstance(header_klvs[-1], KLVFill) and \
# not isinstance(header_klvs[-1], MXFPartition):
# raise Exception('Error: MXFPrimer not located after Header Partition Pack')
header_metadata_primer_pack = MXFPrimer(fd, debug=True)
header_metadata_primer_pack.read()
print header_metadata_primer_pack
klv = header_metadata_primer_pack
elif key == '060e2b34025301010d01010101012f00':
# SMTPE 377M: Header Metadata (Preface)
#if not isinstance(header_klvs[-1], KLVFill) and \
# not isinstance(header_klvs[-1], MXFPrimer):
# raise Exception('Error: MXFPrimer not located after Header Partition Pack')
header_metadata_preface = MXFPreface(fd, header_metadata_primer_pack)
header_metadata_preface.read()
klv = header_metadata_preface
elif key in (
# essence descriptions (130~180)
# SMPTE 377M: Strutural Metadata Sets
'060e2b34025301010d01010101010900', # Filler
'060e2b34025301010d01010101010f00', # Sequence
'060e2b34025301010d01010101011100', # Source Clip
'060e2b34025301010d01010101011400', # Timecode Component
'060e2b34025301010d01010101011800', # ContentStorage
'060e2b34025301010d01010101013000', # Identification
'060e2b34025301010d01010101013700', # Source Package (File, Physical)
'060e2b34025301010d01010101013600', # Material Package
'060e2b34025301010d01010101013b00', # Timeline Track
'060e2b34025301010d01010101012300', # EssenceContainerData
'060e2b34025301010d01010101012800', # CDCI Essence Descriptor
'060e2b34025301010d01010101014200', # GenericSoundEssenceDescriptor
'060e2b34025301010d01010101014400', # MultipleDescriptor
'060e2b34025301010d01010101014700', # AES3PCMDescriptor
'060e2b34025301010d01010101014800', # WaveAudioDescriptor
'060e2b34025301010d01010101015100', # MPEG2VideoDescriptor
):
klv = MXFDataSet(fd, header_metadata_primer_pack)
klv.read()
else:
klv = KLVDarkComponent(fd)
klv.read()
dark += 1
self.data['header']['klvs'].append(klv)
### End of the parsing loop 1
if self.debug:
print "Loaded ", len(self.data['header']['klvs']), "KLVs", self.fd.tell()
print "Skipped", dark, "dark KLVs"
self.data['header'].update({
'primer': header_metadata_primer_pack,
'preface': header_metadata_preface,
})
return
def header_metadata_parse(self):
dark = 0
avid_metadata_preface = None
header_metadata_preface = None
header_end = self.fd.tell() + self.data['header']['partition'].data['header_byte_count']
while self.fd.tell() < header_end:
fd = self.fd
key = InterchangeObject.get_key(self.fd)
if key in ('060e2b34010101010201021001000000', \
'060e2b34010101010301021001000000'):
# KLV Fill item
klv = KLVFill(fd)
klv.read()
elif key == '060e2b34020501010d01020101050100':
# SMTPE 377M: Header Metadata (Primer Pack)
#if not isinstance(header_klvs[-1], KLVFill) and \
# not isinstance(header_klvs[-1], MXFPartition):
# raise Exception('Error: MXFPrimer not located after Header Partition Pack')
header_metadata_primer_pack = MXFPrimer(fd, debug=True)
header_metadata_primer_pack.read()
#print header_metadata_primer_pack
klv = header_metadata_primer_pack
#continue
elif key == '060e2b34025301010d01010101012f00':
# SMTPE 377M: Header Metadata (Preface)
#if not isinstance(header_klvs[-1], KLVFill) and \
# not isinstance(header_klvs[-1], MXFPrimer):
# raise Exception('Error: MXFPrimer not located after Header Partition Pack')
header_metadata_preface = MXFPreface(fd, header_metadata_primer_pack)
header_metadata_preface.read()
klv = header_metadata_preface
elif key == '8053080036210804b3b398a51c9011d4':
# Avid ???
avid_metadata_preface = AvidMetadataPreface(fd, header_metadata_primer_pack)
avid_metadata_preface.read()
klv = avid_metadata_preface
elif key in (
# 416 chunk (dark)
'060e2b34025301010d01010102010000',
'060e2b34025301010d01010102020000',
'060e2b34025301010d01010102040000',
'060e2b34025301010d01010102050000',
'060e2b34025301010d01010102060000',
'060e2b34025301010d01010102070000',
'060e2b34025301010d01010102080000',
'060e2b34025301010d01010102090000',
'060e2b34025301010d010101020a0000',
'060e2b34025301010d010101020b0000',
'060e2b34025301010d010101020c0000',
'060e2b34025301010d010101020d0000',
'060e2b34025301010d010101020e0000',
'060e2b34025301010d01010102200000',
'060e2b34025301010d01010102210000',
'060e2b34025301010d01010102220000', # Dark Dictionary ?
'060e2b34025301010d01010102250000',
# 119 chunk: Metadata of type ???
'060e2b34025301010d01010101011b00', # Dark Simple Type Definition
'060e2b34025301010d01010101011f00', # Dark Derived Type Definition
'060e2b34025301010d01010101012000', # Dark Concent Type Definition
'060e2b34025301010d01010101012200', # Dark Links to Data/Container/Codecs definitions
):
# Avid DataSet
klv = AvidAAFDefinition(fd, header_metadata_primer_pack)
klv.read()
elif key in (
# essence descriptions (130~180)
# SMPTE 377M: Strutural Metadata Sets
'060e2b34025301010d01010101010900', # Filler
'060e2b34025301010d01010101010f00', # Sequence
'060e2b34025301010d01010101011100', # Source Clip
'060e2b34025301010d01010101011400', # Timecode Component
'060e2b34025301010d01010101011800', # ContentStorage
'060e2b34025301010d01010101012e00', # AVID
'060e2b34025301010d01010101013700', # Source Package (File, Physical)
'060e2b34025301010d01010101013b00', # Timeline Track
'060e2b34025301010d01010101014200', # GenericSoundEssenceDescriptor
'060e2b34025301010d01010101014400', # MultipleDescriptor
'060e2b34025301010d01010101014800', # WaveAudioDescriptor
):
klv = MXFDataSet(fd, header_metadata_primer_pack)
klv.read()
elif key in (
'060e2b34025301010d01010101012800', # CDCI Essence Descriptor
# avid does not use standard 10 bytes ProductVersion
'060e2b34025301010d01010101013000', # Identification
'060e2b34025301010d01010101013600', # Material Package
'060e2b34025301010d01010101013f00', # AVID
):
klv = AvidMXFDataSet(fd, header_metadata_primer_pack)
klv.read()
elif key == '9613b38a87348746f10296f056e04d2a':
# Avid ObjectDirectory
klv = AvidObjectDirectory(fd, True)
klv.read()
else:
klv = KLVDarkComponent(fd)
klv.read()
dark += 1
self.data['header']['klvs'].append(klv)
### End of the parsing loop 1
if self.debug:
print "Loaded ", len(self.data['header']['klvs']), "KLVs", self.fd.tell()
print "Skipped", dark, "dark KLVs"
self.data['header'].update({
'primer': header_metadata_primer_pack,
'preface': header_metadata_preface,
'avid_preface': avid_metadata_preface,
})
return