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mirror of https://github.com/moparisthebest/SickRage synced 2024-11-06 01:15:05 -05:00
SickRage/lib/hachoir_parser/container/ogg.py
echel0n 0d9fbc1ad7 Welcome to our SickBeard-TVRage Edition ...
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!
2014-03-09 22:39:12 -07:00

350 lines
12 KiB
Python

#
# Ogg parser
# Author Julien Muchembled <jm AT jm10.no-ip.com>
# Created: 10 june 2006
#
from lib.hachoir_parser import Parser
from lib.hachoir_core.field import (Field, FieldSet, createOrphanField,
NullBits, Bit, Bits, Enum, Fragment, MissingField, ParserError,
UInt8, UInt16, UInt24, UInt32, UInt64,
RawBytes, String, PascalString32, NullBytes)
from lib.hachoir_core.stream import FragmentedStream, InputStreamError
from lib.hachoir_core.endian import LITTLE_ENDIAN, BIG_ENDIAN
from lib.hachoir_core.tools import humanDurationNanosec
from lib.hachoir_core.text_handler import textHandler, hexadecimal
MAX_FILESIZE = 1000 * 1024 * 1024
class XiphInt(Field):
"""
Positive integer with variable size. Values bigger than 254 are stored as
(255, 255, ..., rest): value is the sum of all bytes.
Example: 1000 is stored as (255, 255, 255, 235), total = 255*3+235 = 1000
"""
def __init__(self, parent, name, max_size=None, description=None):
Field.__init__(self, parent, name, size=0, description=description)
value = 0
addr = self.absolute_address
while max_size is None or self._size < max_size:
byte = parent.stream.readBits(addr, 8, LITTLE_ENDIAN)
value += byte
self._size += 8
if byte != 0xff:
break
addr += 8
self.createValue = lambda: value
class Lacing(FieldSet):
def createFields(self):
size = self.size
while size:
field = XiphInt(self, 'size[]', size)
yield field
size -= field.size
def parseVorbisComment(parent):
yield PascalString32(parent, 'vendor', charset="UTF-8")
yield UInt32(parent, 'count')
for index in xrange(parent["count"].value):
yield PascalString32(parent, 'metadata[]', charset="UTF-8")
if parent.current_size != parent.size:
yield UInt8(parent, "framing_flag")
PIXEL_FORMATS = {
0: "4:2:0",
2: "4:2:2",
3: "4:4:4",
}
def formatTimeUnit(field):
return humanDurationNanosec(field.value * 100)
def parseVideoHeader(parent):
yield NullBytes(parent, "padding[]", 2)
yield String(parent, "fourcc", 4)
yield UInt32(parent, "size")
yield textHandler(UInt64(parent, "time_unit", "Frame duration"), formatTimeUnit)
yield UInt64(parent, "sample_per_unit")
yield UInt32(parent, "default_len")
yield UInt32(parent, "buffer_size")
yield UInt16(parent, "bits_per_sample")
yield NullBytes(parent, "padding[]", 2)
yield UInt32(parent, "width")
yield UInt32(parent, "height")
yield NullBytes(parent, "padding[]", 4)
def parseTheoraHeader(parent):
yield UInt8(parent, "version_major")
yield UInt8(parent, "version_minor")
yield UInt8(parent, "version_revision")
yield UInt16(parent, "width", "Width*16 in pixel")
yield UInt16(parent, "height", "Height*16 in pixel")
yield UInt24(parent, "frame_width")
yield UInt24(parent, "frame_height")
yield UInt8(parent, "offset_x")
yield UInt8(parent, "offset_y")
yield UInt32(parent, "fps_num", "Frame per second numerator")
yield UInt32(parent, "fps_den", "Frame per second denominator")
yield UInt24(parent, "aspect_ratio_num", "Aspect ratio numerator")
yield UInt24(parent, "aspect_ratio_den", "Aspect ratio denominator")
yield UInt8(parent, "color_space")
yield UInt24(parent, "target_bitrate")
yield Bits(parent, "quality", 6)
yield Bits(parent, "gp_shift", 5)
yield Enum(Bits(parent, "pixel_format", 2), PIXEL_FORMATS)
yield Bits(parent, "spare_config", 3)
def parseVorbisHeader(parent):
yield UInt32(parent, "vorbis_version")
yield UInt8(parent, "audio_channels")
yield UInt32(parent, "audio_sample_rate")
yield UInt32(parent, "bitrate_maximum")
yield UInt32(parent, "bitrate_nominal")
yield UInt32(parent, "bitrate_minimum")
yield Bits(parent, "blocksize_0", 4)
yield Bits(parent, "blocksize_1", 4)
yield UInt8(parent, "framing_flag")
class Chunk(FieldSet):
tag_info = {
"vorbis": {
3: ("comment", parseVorbisComment),
1: ("vorbis_hdr", parseVorbisHeader),
}, "theora": {
128: ("theora_hdr", parseTheoraHeader),
129: ("comment", parseVorbisComment),
}, "video\0": {
1: ("video_hdr", parseVideoHeader),
},
}
def __init__(self, *args, **kw):
FieldSet.__init__(self, *args, **kw)
if 7*8 <= self.size:
try:
self._name, self.parser = self.tag_info[self["codec"].value][self["type"].value]
if self._name == "theora_hdr":
self.endian = BIG_ENDIAN
except KeyError:
self.parser = None
else:
self.parser = None
def createFields(self):
if 7*8 <= self.size:
yield UInt8(self, 'type')
yield String(self, 'codec', 6)
if self.parser:
for field in self.parser(self):
yield field
else:
size = (self.size - self.current_size) // 8
if size:
yield RawBytes(self, "raw", size)
class Packets:
def __init__(self, first):
self.first = first
def __iter__(self):
fragment = self.first
size = None
while fragment is not None:
page = fragment.parent
continued_packet = page["continued_packet"].value
for segment_size in page.segment_size:
if continued_packet:
size += segment_size
continued_packet = False
else:
if size:
yield size * 8
size = segment_size
fragment = fragment.next
if size:
yield size * 8
class Segments(Fragment):
def __init__(self, parent, *args, **kw):
Fragment.__init__(self, parent, *args, **kw)
if parent['last_page'].value:
next = None
else:
next = self.createNext
self.setLinks(parent.parent.streams.setdefault(parent['serial'].value, self), next)
def _createInputStream(self, **args):
if self.first is self:
return FragmentedStream(self, packets=Packets(self), tags=[("id","ogg_stream")], **args)
return Fragment._createInputStream(self, **args)
def _getData(self):
return self
def createNext(self):
parent = self.parent
index = parent.index
parent = parent.parent
first = self.first
try:
while True:
index += 1
next = parent[index][self.name]
if next.first is first:
return next
except MissingField:
pass
def createFields(self):
for segment_size in self.parent.segment_size:
if segment_size:
yield Chunk(self, "chunk[]", size=segment_size*8)
class OggPage(FieldSet):
MAGIC = "OggS"
def __init__(self, *args):
FieldSet.__init__(self, *args)
size = 27
self.lacing_size = self['lacing_size'].value
if self.lacing_size:
size += self.lacing_size
lacing = self['lacing']
self.segment_size = [ field.value for field in lacing ]
size += sum(self.segment_size)
self._size = size * 8
def createFields(self):
yield String(self, 'capture_pattern', 4, charset="ASCII")
if self['capture_pattern'].value != self.MAGIC:
self.warning('Invalid signature. An Ogg page must start with "%s".' % self.MAGIC)
yield UInt8(self, 'stream_structure_version')
yield Bit(self, 'continued_packet')
yield Bit(self, 'first_page')
yield Bit(self, 'last_page')
yield NullBits(self, 'unused', 5)
yield UInt64(self, 'abs_granule_pos')
yield textHandler(UInt32(self, 'serial'), hexadecimal)
yield UInt32(self, 'page')
yield textHandler(UInt32(self, 'checksum'), hexadecimal)
yield UInt8(self, 'lacing_size')
if self.lacing_size:
yield Lacing(self, "lacing", size=self.lacing_size*8)
yield Segments(self, "segments", size=self._size-self._current_size)
def validate(self):
if self['capture_pattern'].value != self.MAGIC:
return "Wrong signature"
if self['stream_structure_version'].value != 0:
return "Unknown structure version (%s)" % self['stream_structure_version'].value
return ""
class OggFile(Parser):
PARSER_TAGS = {
"id": "ogg",
"category": "container",
"file_ext": ("ogg", "ogm"),
"mime": (
u"application/ogg", u"application/x-ogg",
u"audio/ogg", u"audio/x-ogg",
u"video/ogg", u"video/x-ogg",
u"video/theora", u"video/x-theora",
),
"magic": ((OggPage.MAGIC, 0),),
"subfile": "skip",
"min_size": 28*8,
"description": "Ogg multimedia container"
}
endian = LITTLE_ENDIAN
def validate(self):
magic = OggPage.MAGIC
if self.stream.readBytes(0, len(magic)) != magic:
return "Invalid magic string"
# Validate first 3 pages
for index in xrange(3):
try:
page = self[index]
except MissingField:
if self.done:
return True
return "Unable to get page #%u" % index
except (InputStreamError, ParserError):
return "Unable to create page #%u" % index
err = page.validate()
if err:
return "Invalid page #%s: %s" % (index, err)
return True
def createMimeType(self):
if "theora_hdr" in self["page[0]/segments"]:
return u"video/theora"
elif "vorbis_hdr" in self["page[0]/segments"]:
return u"audio/vorbis"
else:
return u"application/ogg"
def createDescription(self):
if "theora_hdr" in self["page[0]"]:
return u"Ogg/Theora video"
elif "vorbis_hdr" in self["page[0]"]:
return u"Ogg/Vorbis audio"
else:
return u"Ogg multimedia container"
def createFields(self):
self.streams = {}
while not self.eof:
yield OggPage(self, "page[]")
def createLastPage(self):
start = self[0].size
end = MAX_FILESIZE * 8
if True:
# FIXME: This doesn't work on all files (eg. some Ogg/Theora)
offset = self.stream.searchBytes("OggS\0\5", start, end)
if offset is None:
offset = self.stream.searchBytes("OggS\0\4", start, end)
if offset is None:
return None
return createOrphanField(self, offset, OggPage, "page")
else:
# Very slow version
page = None
while True:
offset = self.stream.searchBytes("OggS\0", start, end)
if offset is None:
break
page = createOrphanField(self, offset, OggPage, "page")
start += page.size
return page
def createContentSize(self):
page = self.createLastPage()
if page:
return page.absolute_address + page.size
else:
return None
class OggStream(Parser):
PARSER_TAGS = {
"id": "ogg_stream",
"category": "container",
"subfile": "skip",
"min_size": 7*8,
"description": "Ogg logical stream"
}
endian = LITTLE_ENDIAN
def validate(self):
return False
def createFields(self):
for size in self.stream.packets:
yield RawBytes(self, "packet[]", size//8)