mirror of
https://github.com/moparisthebest/SickRage
synced 2024-08-13 16:53:54 -04:00
0d9fbc1ad7
This version of SickBeard uses both TVDB and TVRage to search and gather it's series data from allowing you to now have access to and download shows that you couldn't before because of being locked into only what TheTVDB had to offer. Also this edition is based off the code we used in our XEM editon so it does come with scene numbering support as well as all the other features our XEM edition has to offer. Please before using this with your existing database (sickbeard.db) please make a backup copy of it and delete any other database files such as cache.db and failed.db if present, we HIGHLY recommend starting out with no database files at all to make this a fresh start but the choice is at your own risk! Enjoy!
599 lines
20 KiB
Python
599 lines
20 KiB
Python
#
|
|
# Matroska parser
|
|
# Author Julien Muchembled <jm AT jm10.no-ip.com>
|
|
# Created: 8 june 2006
|
|
#
|
|
|
|
from lib.hachoir_parser import Parser
|
|
from lib.hachoir_core.field import (FieldSet, Link,
|
|
MissingField, ParserError,
|
|
Enum as _Enum, String as _String,
|
|
Float32, Float64,
|
|
NullBits, Bits, Bit, RawBytes, Bytes,
|
|
Int16, GenericInteger)
|
|
from lib.hachoir_core.endian import BIG_ENDIAN
|
|
from lib.hachoir_core.iso639 import ISO639_2
|
|
from lib.hachoir_core.tools import humanDatetime
|
|
from lib.hachoir_core.text_handler import textHandler, hexadecimal
|
|
from lib.hachoir_parser.container.ogg import XiphInt
|
|
from datetime import datetime, timedelta
|
|
|
|
class RawInt(GenericInteger):
|
|
"""
|
|
Raw integer: have to be used in BIG_ENDIAN!
|
|
"""
|
|
def __init__(self, parent, name, description=None):
|
|
GenericInteger.__init__(self, parent, name, False, 8, description)
|
|
i = GenericInteger.createValue(self)
|
|
if i == 0:
|
|
raise ParserError('Invalid integer length!')
|
|
while i < 0x80:
|
|
self._size += 8
|
|
i <<= 1
|
|
|
|
class Unsigned(RawInt):
|
|
def __init__(self, parent, name, description=None):
|
|
RawInt.__init__(self, parent, name, description)
|
|
|
|
def hasValue(self):
|
|
return True
|
|
def createValue(self):
|
|
header = 1 << self._size / 8 * 7
|
|
value = RawInt.createValue(self) - header
|
|
if value + 1 == header:
|
|
return None
|
|
return value
|
|
|
|
class Signed(Unsigned):
|
|
def createValue(self):
|
|
header = 1 << self._size / 8 * 7 - 1
|
|
value = RawInt.createValue(self) - 3 * header + 1
|
|
if value == header:
|
|
return None
|
|
return value
|
|
|
|
def Enum(parent, enum):
|
|
return _Enum(GenericInteger(parent, 'enum', False, parent['size'].value*8), enum)
|
|
|
|
def Bool(parent):
|
|
return textHandler(GenericInteger(parent, 'bool', False, parent['size'].value*8),
|
|
lambda chunk: str(chunk.value != 0))
|
|
|
|
def UInt(parent):
|
|
return GenericInteger(parent, 'unsigned', False, parent['size'].value*8)
|
|
|
|
def SInt(parent):
|
|
return GenericInteger(parent, 'signed', True, parent['size'].value*8)
|
|
|
|
def String(parent):
|
|
return _String(parent, 'string', parent['size'].value, charset="ASCII")
|
|
|
|
def EnumString(parent, enum):
|
|
return _Enum(String(parent), enum)
|
|
|
|
def Binary(parent):
|
|
return RawBytes(parent, 'binary', parent['size'].value)
|
|
|
|
class AttachedFile(Bytes):
|
|
def __init__(self, parent):
|
|
Bytes.__init__(self, parent, 'file', parent['size'].value, None)
|
|
def _getFilename(self):
|
|
if not hasattr(self, "_filename"):
|
|
try:
|
|
self._filename = self["../../FileName/unicode"].value
|
|
except MissingField:
|
|
self._filename = None
|
|
return self._filename
|
|
def createDescription(self):
|
|
filename = self._getFilename()
|
|
if filename:
|
|
return 'File "%s"' % filename
|
|
return "('Filename' entry not found)"
|
|
def _createInputStream(self, **args):
|
|
tags = args.setdefault("tags",[])
|
|
try:
|
|
tags.append(("mime", self["../../FileMimeType/string"].value))
|
|
except MissingField:
|
|
pass
|
|
filename = self._getFilename()
|
|
if filename:
|
|
tags.append(("filename", filename))
|
|
return Bytes._createInputStream(self, **args)
|
|
|
|
def UTF8(parent):
|
|
return _String(parent,'unicode', parent['size'].value, charset='UTF-8')
|
|
|
|
def Float(parent):
|
|
size = parent['size'].value
|
|
if size == 4:
|
|
return Float32(parent, 'float')
|
|
elif size == 8:
|
|
return Float64(parent, 'double')
|
|
else:
|
|
return RawBytes(parent, 'INVALID_FLOAT', size)
|
|
|
|
TIMESTAMP_T0 = datetime(2001, 1, 1)
|
|
|
|
def dateToDatetime(value):
|
|
return TIMESTAMP_T0 + timedelta(microseconds=value//1000)
|
|
|
|
def dateToString(field):
|
|
return humanDatetime(dateToDatetime(field.value))
|
|
|
|
def Date(parent):
|
|
return textHandler(GenericInteger(parent, 'date', True, parent['size'].value*8),
|
|
dateToString)
|
|
|
|
def SeekID(parent):
|
|
return textHandler(GenericInteger(parent, 'binary', False, parent['size'].value*8),
|
|
lambda chunk: segment.get(chunk.value, (hexadecimal(chunk),))[0])
|
|
|
|
def CueClusterPosition(parent):
|
|
class Cluster(Link):
|
|
def createValue(self):
|
|
parent = self.parent
|
|
segment = parent['.....']
|
|
pos = parent['unsigned'].value * 8 + segment[2].address
|
|
return segment.getFieldByAddress(pos, feed=False)
|
|
return Cluster(parent, 'cluster')
|
|
|
|
def CueTrackPositions(parent):
|
|
class Block(Link):
|
|
def createValue(self):
|
|
parent = self.parent
|
|
time = parent['../CueTime/unsigned'].value
|
|
track = parent['CueTrack/unsigned'].value
|
|
cluster = parent['CueClusterPosition/cluster'].value
|
|
time -= cluster['Timecode/unsigned'].value
|
|
for field in cluster:
|
|
if field.name.startswith('BlockGroup['):
|
|
for path in 'Block/block', 'SimpleBlock':
|
|
try:
|
|
block = field[path]
|
|
if block['track'].value == track and \
|
|
block['timecode'].value == time:
|
|
return field
|
|
except MissingField:
|
|
pass
|
|
parent.error('Cue point not found')
|
|
return self
|
|
return Block(parent, 'block')
|
|
|
|
class Lace(FieldSet):
|
|
def __init__(self, parent, lacing, size):
|
|
self.n_frames = parent['n_frames'].value
|
|
self.createFields = ( self.parseXiph, self.parseFixed, self.parseEBML )[lacing]
|
|
FieldSet.__init__(self, parent, 'Lace', size=size * 8)
|
|
|
|
def parseXiph(self):
|
|
for i in xrange(self.n_frames):
|
|
yield XiphInt(self, 'size[]')
|
|
for i in xrange(self.n_frames):
|
|
yield RawBytes(self, 'frame[]', self['size['+str(i)+']'].value)
|
|
yield RawBytes(self,'frame[]', (self._size - self.current_size) / 8)
|
|
|
|
def parseEBML(self):
|
|
yield Unsigned(self, 'size')
|
|
for i in xrange(1, self.n_frames):
|
|
yield Signed(self, 'dsize[]')
|
|
size = self['size'].value
|
|
yield RawBytes(self, 'frame[]', size)
|
|
for i in xrange(self.n_frames-1):
|
|
size += self['dsize['+str(i)+']'].value
|
|
yield RawBytes(self, 'frame[]', size)
|
|
yield RawBytes(self,'frame[]', (self._size - self.current_size) / 8)
|
|
|
|
def parseFixed(self):
|
|
n = self.n_frames + 1
|
|
size = self._size / 8 / n
|
|
for i in xrange(n):
|
|
yield RawBytes(self, 'frame[]', size)
|
|
|
|
class Block(FieldSet):
|
|
def __init__(self, parent):
|
|
FieldSet.__init__(self, parent, 'block')
|
|
self._size = 8 * parent['size'].value
|
|
|
|
def lacing(self):
|
|
return _Enum(Bits(self, 'lacing', 2), [ 'none', 'Xiph', 'fixed', 'EBML' ])
|
|
|
|
def createFields(self):
|
|
yield Unsigned(self, 'track')
|
|
yield Int16(self, 'timecode')
|
|
|
|
if self.parent._name == 'Block':
|
|
yield NullBits(self, 'reserved[]', 4)
|
|
yield Bit(self, 'invisible')
|
|
yield self.lacing()
|
|
yield NullBits(self, 'reserved[]', 1)
|
|
elif self.parent._name == 'SimpleBlock[]':
|
|
yield Bit(self, 'keyframe')
|
|
yield NullBits(self, 'reserved', 3)
|
|
yield Bit(self, 'invisible')
|
|
yield self.lacing()
|
|
yield Bit(self, 'discardable')
|
|
else:
|
|
yield NullBits(self, 'reserved', 8)
|
|
return
|
|
|
|
size = (self._size - self.current_size) / 8
|
|
lacing = self['lacing'].value
|
|
if lacing:
|
|
yield textHandler(GenericInteger(self, 'n_frames', False, 8),
|
|
lambda chunk: str(chunk.value+1))
|
|
yield Lace(self, lacing - 1, size - 1)
|
|
else:
|
|
yield RawBytes(self,'frame', size)
|
|
|
|
ebml = {
|
|
0x1A45DFA3: ('EBML[]', {
|
|
0x4286: ('EBMLVersion',UInt),
|
|
0x42F7: ('EBMLReadVersion',UInt),
|
|
0x42F2: ('EBMLMaxIDLength',UInt),
|
|
0x42F3: ('EBMLMaxSizeLength',UInt),
|
|
0x4282: ('DocType',String),
|
|
0x4287: ('DocTypeVersion',UInt),
|
|
0x4285: ('DocTypeReadVersion',UInt)
|
|
})
|
|
}
|
|
|
|
signature = {
|
|
0x7E8A: ('SignatureAlgo', UInt),
|
|
0x7E9A: ('SignatureHash', UInt),
|
|
0x7EA5: ('SignaturePublicKey', Binary),
|
|
0x7EB5: ('Signature', Binary),
|
|
0x7E5B: ('SignatureElements', {
|
|
0x7E7B: ('SignatureElementList[]', {
|
|
0x6532: ('SignedElement[]', Binary)
|
|
})
|
|
})
|
|
}
|
|
|
|
chapter_atom = {
|
|
0x73C4: ('ChapterUID', UInt),
|
|
0x91: ('ChapterTimeStart', UInt),
|
|
0x92: ('ChapterTimeEnd', UInt),
|
|
0x98: ('ChapterFlagHidden', Bool),
|
|
0x4598: ('ChapterFlagEnabled', Bool),
|
|
0x6E67: ('ChapterSegmentUID', Binary),
|
|
0x6EBC: ('ChapterSegmentEditionUID', Binary),
|
|
0x63C3: ('ChapterPhysicalEquiv', UInt),
|
|
0x8F: ('ChapterTrack', {
|
|
0x89: ('ChapterTrackNumber[]', UInt)
|
|
}),
|
|
0x80: ('ChapterDisplay[]', {
|
|
0x85: ('ChapString', UTF8),
|
|
0x437C: ('ChapLanguage[]', String),
|
|
0x437E: ('ChapCountry[]', String)
|
|
}),
|
|
0x6944: ('ChapProcess[]', {
|
|
0x6955: ('ChapProcessCodecID', UInt),
|
|
0x450D: ('ChapProcessPrivate', Binary),
|
|
0x6911: ('ChapProcessCommand[]', {
|
|
0x6922: ('ChapProcessTime', UInt),
|
|
0x6933: ('ChapProcessData', Binary)
|
|
})
|
|
})
|
|
}
|
|
|
|
simple_tag = {
|
|
0x45A3: ('TagName', UTF8),
|
|
0x447A: ('TagLanguage', String),
|
|
0x44B4: ('TagDefault', Bool), # 0x4484
|
|
0x4487: ('TagString', UTF8),
|
|
0x4485: ('TagBinary', Binary)
|
|
}
|
|
|
|
segment_seek = {
|
|
0x4DBB: ('Seek[]', {
|
|
0x53AB: ('SeekID', SeekID),
|
|
0x53AC: ('SeekPosition', UInt)
|
|
})
|
|
}
|
|
|
|
segment_info = {
|
|
0x73A4: ('SegmentUID', Binary),
|
|
0x7384: ('SegmentFilename', UTF8),
|
|
0x3CB923: ('PrevUID', Binary),
|
|
0x3C83AB: ('PrevFilename', UTF8),
|
|
0x3EB923: ('NextUID', Binary),
|
|
0x3E83BB: ('NextFilename', UTF8),
|
|
0x4444: ('SegmentFamily[]', Binary),
|
|
0x6924: ('ChapterTranslate[]', {
|
|
0x69FC: ('ChapterTranslateEditionUID[]', UInt),
|
|
0x69BF: ('ChapterTranslateCodec', UInt),
|
|
0x69A5: ('ChapterTranslateID', Binary)
|
|
}),
|
|
0x2AD7B1: ('TimecodeScale', UInt),
|
|
0x4489: ('Duration', Float),
|
|
0x4461: ('DateUTC', Date),
|
|
0x7BA9: ('Title', UTF8),
|
|
0x4D80: ('MuxingApp', UTF8),
|
|
0x5741: ('WritingApp', UTF8)
|
|
}
|
|
|
|
segment_clusters = {
|
|
0xE7: ('Timecode', UInt),
|
|
0x5854: ('SilentTracks', {
|
|
0x58D7: ('SilentTrackNumber[]', UInt)
|
|
}),
|
|
0xA7: ('Position', UInt),
|
|
0xAB: ('PrevSize', UInt),
|
|
0xA0: ('BlockGroup[]', {
|
|
0xA1: ('Block', Block),
|
|
0xA2: ('BlockVirtual[]', Block),
|
|
0x75A1: ('BlockAdditions', {
|
|
0xA6: ('BlockMore[]', {
|
|
0xEE: ('BlockAddID', UInt),
|
|
0xA5: ('BlockAdditional', Binary)
|
|
})
|
|
}),
|
|
0x9B: ('BlockDuration', UInt),
|
|
0xFA: ('ReferencePriority', UInt),
|
|
0xFB: ('ReferenceBlock[]', SInt),
|
|
0xFD: ('ReferenceVirtual', SInt),
|
|
0xA4: ('CodecState', Binary),
|
|
0x8E: ('Slices[]', {
|
|
0xE8: ('TimeSlice[]', {
|
|
0xCC: ('LaceNumber', UInt),
|
|
0xCD: ('FrameNumber', UInt),
|
|
0xCB: ('BlockAdditionID', UInt),
|
|
0xCE: ('Delay', UInt),
|
|
0xCF: ('Duration', UInt)
|
|
})
|
|
})
|
|
}),
|
|
0xA3: ('SimpleBlock[]', Block)
|
|
}
|
|
|
|
tracks_video = {
|
|
0x9A: ('FlagInterlaced', Bool),
|
|
0x53B8: ('StereoMode', lambda parent: Enum(parent, \
|
|
[ 'mono', 'right eye', 'left eye', 'both eyes' ])),
|
|
0xB0: ('PixelWidth', UInt),
|
|
0xBA: ('PixelHeight', UInt),
|
|
0x54AA: ('PixelCropBottom', UInt),
|
|
0x54BB: ('PixelCropTop', UInt),
|
|
0x54CC: ('PixelCropLeft', UInt),
|
|
0x54DD: ('PixelCropRight', UInt),
|
|
0x54B0: ('DisplayWidth', UInt),
|
|
0x54BA: ('DisplayHeight', UInt),
|
|
0x54B2: ('DisplayUnit', lambda parent: Enum(parent, \
|
|
[ 'pixels', 'centimeters', 'inches' ])),
|
|
0x54B3: ('AspectRatioType', lambda parent: Enum(parent, \
|
|
[ 'free resizing', 'keep aspect ratio', 'fixed' ])),
|
|
0x2EB524: ('ColourSpace', Binary),
|
|
0x2FB523: ('GammaValue', Float)
|
|
}
|
|
|
|
tracks_audio = {
|
|
0xB5: ('SamplingFrequency', Float),
|
|
0x78B5: ('OutputSamplingFrequency', Float),
|
|
0x9F: ('Channels', UInt),
|
|
0x7D7B: ('ChannelPositions', Binary),
|
|
0x6264: ('BitDepth', UInt)
|
|
}
|
|
|
|
tracks_content_encodings = {
|
|
0x6240: ('ContentEncoding[]', {
|
|
0x5031: ('ContentEncodingOrder', UInt),
|
|
0x5032: ('ContentEncodingScope', UInt),
|
|
0x5033: ('ContentEncodingType', UInt),
|
|
0x5034: ('ContentCompression', {
|
|
0x4254: ('ContentCompAlgo', UInt),
|
|
0x4255: ('ContentCompSettings', Binary)
|
|
}),
|
|
0x5035: ('ContentEncryption', {
|
|
0x47e1: ('ContentEncAlgo', UInt),
|
|
0x47e2: ('ContentEncKeyID', Binary),
|
|
0x47e3: ('ContentSignature', Binary),
|
|
0x47e4: ('ContentSigKeyID', Binary),
|
|
0x47e5: ('ContentSigAlgo', UInt),
|
|
0x47e6: ('ContentSigHashAlgo', UInt),
|
|
})
|
|
})
|
|
}
|
|
|
|
segment_tracks = {
|
|
0xAE: ('TrackEntry[]', {
|
|
0xD7: ('TrackNumber', UInt),
|
|
0x73C5: ('TrackUID', UInt),
|
|
0x83: ('TrackType', lambda parent: Enum(parent, {
|
|
0x01: 'video',
|
|
0x02: 'audio',
|
|
0x03: 'complex',
|
|
0x10: 'logo',
|
|
0x11: 'subtitle',
|
|
0x12: 'buttons',
|
|
0x20: 'control'
|
|
})),
|
|
0xB9: ('FlagEnabled', Bool),
|
|
0x88: ('FlagDefault', Bool),
|
|
0x55AA: ('FlagForced[]', Bool),
|
|
0x9C: ('FlagLacing', Bool),
|
|
0x6DE7: ('MinCache', UInt),
|
|
0x6DF8: ('MaxCache', UInt),
|
|
0x23E383: ('DefaultDuration', UInt),
|
|
0x23314F: ('TrackTimecodeScale', Float),
|
|
0x537F: ('TrackOffset', SInt),
|
|
0x55EE: ('MaxBlockAdditionID', UInt),
|
|
0x536E: ('Name', UTF8),
|
|
0x22B59C: ('Language', lambda parent: EnumString(parent, ISO639_2)),
|
|
0x86: ('CodecID', String),
|
|
0x63A2: ('CodecPrivate', Binary),
|
|
0x258688: ('CodecName', UTF8),
|
|
0x7446: ('AttachmentLink', UInt),
|
|
0x3A9697: ('CodecSettings', UTF8),
|
|
0x3B4040: ('CodecInfoURL[]', String),
|
|
0x26B240: ('CodecDownloadURL[]', String),
|
|
0xAA: ('CodecDecodeAll', Bool),
|
|
0x6FAB: ('TrackOverlay[]', UInt),
|
|
0x6624: ('TrackTranslate[]', {
|
|
0x66FC: ('TrackTranslateEditionUID[]', UInt),
|
|
0x66BF: ('TrackTranslateCodec', UInt),
|
|
0x66A5: ('TrackTranslateTrackID', Binary)
|
|
}),
|
|
0xE0: ('Video', tracks_video),
|
|
0xE1: ('Audio', tracks_audio),
|
|
0x6d80: ('ContentEncodings', tracks_content_encodings)
|
|
})
|
|
}
|
|
|
|
segment_cues = {
|
|
0xBB: ('CuePoint[]', {
|
|
0xB3: ('CueTime', UInt),
|
|
0xB7: ('CueTrackPositions[]', CueTrackPositions, {
|
|
0xF7: ('CueTrack', UInt),
|
|
0xF1: ('CueClusterPosition', CueClusterPosition, UInt),
|
|
0x5378: ('CueBlockNumber', UInt),
|
|
0xEA: ('CueCodecState', UInt),
|
|
0xDB: ('CueReference[]', {
|
|
0x96: ('CueRefTime', UInt),
|
|
0x97: ('CueRefCluster', UInt),
|
|
0x535F: ('CueRefNumber', UInt),
|
|
0xEB: ('CueRefCodecState', UInt)
|
|
})
|
|
})
|
|
})
|
|
}
|
|
|
|
segment_attachments = {
|
|
0x61A7: ('AttachedFile[]', {
|
|
0x467E: ('FileDescription', UTF8),
|
|
0x466E: ('FileName', UTF8),
|
|
0x4660: ('FileMimeType', String),
|
|
0x465C: ('FileData', AttachedFile),
|
|
0x46AE: ('FileUID', UInt),
|
|
0x4675: ('FileReferral', Binary)
|
|
})
|
|
}
|
|
|
|
segment_chapters = {
|
|
0x45B9: ('EditionEntry[]', {
|
|
0x45BC: ('EditionUID', UInt),
|
|
0x45BD: ('EditionFlagHidden', Bool),
|
|
0x45DB: ('EditionFlagDefault', Bool),
|
|
0x45DD: ('EditionFlagOrdered', Bool),
|
|
0xB6: ('ChapterAtom[]', chapter_atom)
|
|
})
|
|
}
|
|
|
|
segment_tags = {
|
|
0x7373: ('Tag[]', {
|
|
0x63C0: ('Targets', {
|
|
0x68CA: ('TargetTypeValue', UInt),
|
|
0x63CA: ('TargetType', String),
|
|
0x63C5: ('TrackUID[]', UInt),
|
|
0x63C9: ('EditionUID[]', UInt),
|
|
0x63C4: ('ChapterUID[]', UInt),
|
|
0x63C6: ('AttachmentUID[]', UInt)
|
|
}),
|
|
0x67C8: ('SimpleTag[]', simple_tag)
|
|
})
|
|
}
|
|
|
|
segment = {
|
|
0x114D9B74: ('SeekHead[]', segment_seek),
|
|
0x1549A966: ('Info[]', segment_info),
|
|
0x1F43B675: ('Cluster[]', segment_clusters),
|
|
0x1654AE6B: ('Tracks[]', segment_tracks),
|
|
0x1C53BB6B: ('Cues', segment_cues),
|
|
0x1941A469: ('Attachments', segment_attachments),
|
|
0x1043A770: ('Chapters', segment_chapters),
|
|
0x1254C367: ('Tags[]', segment_tags)
|
|
}
|
|
|
|
class EBML(FieldSet):
|
|
def __init__(self, parent, ids):
|
|
FieldSet.__init__(self, parent, "?[]")
|
|
|
|
# Set name
|
|
id = self['id'].value
|
|
self.val = ids.get(id)
|
|
if not self.val:
|
|
if id == 0xBF:
|
|
self.val = 'CRC-32[]', Binary
|
|
elif id == 0xEC:
|
|
self.val = 'Void[]', Binary
|
|
elif id == 0x1B538667:
|
|
self.val = 'SignatureSlot[]', signature
|
|
else:
|
|
self.val = 'Unknown[]', Binary
|
|
self._name = self.val[0]
|
|
|
|
# Compute size
|
|
size = self['size']
|
|
if size.value is not None:
|
|
self._size = size.address + size.size + size.value * 8
|
|
elif self._parent._parent:
|
|
raise ParserError("Unknown length (only allowed for the last Level 0 element)")
|
|
elif self._parent._size is not None:
|
|
self._size = self._parent._size - self.address
|
|
|
|
def createFields(self):
|
|
yield RawInt(self, 'id')
|
|
yield Unsigned(self, 'size')
|
|
for val in self.val[1:]:
|
|
if callable(val):
|
|
yield val(self)
|
|
else:
|
|
while not self.eof:
|
|
yield EBML(self, val)
|
|
|
|
class MkvFile(Parser):
|
|
EBML_SIGNATURE = 0x1A45DFA3
|
|
PARSER_TAGS = {
|
|
"id": "matroska",
|
|
"category": "container",
|
|
"file_ext": ("mka", "mkv", "webm"),
|
|
"mime": (
|
|
u"video/x-matroska",
|
|
u"audio/x-matroska",
|
|
u"video/webm",
|
|
u"audio/webm"),
|
|
"min_size": 5*8,
|
|
"magic": (("\x1A\x45\xDF\xA3", 0),),
|
|
"description": "Matroska multimedia container"
|
|
}
|
|
endian = BIG_ENDIAN
|
|
|
|
def _getDoctype(self):
|
|
return self[0]['DocType/string'].value
|
|
|
|
def validate(self):
|
|
if self.stream.readBits(0, 32, self.endian) != self.EBML_SIGNATURE:
|
|
return False
|
|
try:
|
|
first = self[0]
|
|
except ParserError:
|
|
return False
|
|
if None < self._size < first._size:
|
|
return "First chunk size is invalid"
|
|
if self._getDoctype() not in ('matroska', 'webm'):
|
|
return "Stream isn't a matroska document."
|
|
return True
|
|
|
|
def createFields(self):
|
|
hdr = EBML(self, ebml)
|
|
yield hdr
|
|
|
|
while not self.eof:
|
|
yield EBML(self, { 0x18538067: ('Segment[]', segment) })
|
|
|
|
def createContentSize(self):
|
|
field = self["Segment[0]/size"]
|
|
return field.absolute_address + field.value * 8 + field.size
|
|
|
|
def createDescription(self):
|
|
if self._getDoctype() == 'webm':
|
|
return 'WebM video'
|
|
else:
|
|
return 'Matroska video'
|
|
|
|
def createMimeType(self):
|
|
if self._getDoctype() == 'webm':
|
|
return u"video/webm"
|
|
else:
|
|
return u"video/x-matroska"
|
|
|