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mirror of https://github.com/moparisthebest/SickRage synced 2024-10-31 23:45:02 -04:00
SickRage/lib/enzyme/flv.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

182 lines
6.2 KiB
Python

# -*- coding: utf-8 -*-
# enzyme - Video metadata parser
# Copyright 2011-2012 Antoine Bertin <diaoulael@gmail.com>
# Copyright 2003-2006 Dirk Meyer <dischi@freevo.org>
#
# This file is part of enzyme.
#
# enzyme is free software; you can redistribute it and/or modify it under
# the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# enzyme is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with enzyme. If not, see <http://www.gnu.org/licenses/>.
from exceptions import ParseError
import core
import logging
import struct
__all__ = ['Parser']
# get logging object
log = logging.getLogger(__name__)
FLV_TAG_TYPE_AUDIO = 0x08
FLV_TAG_TYPE_VIDEO = 0x09
FLV_TAG_TYPE_META = 0x12
# audio flags
FLV_AUDIO_CHANNEL_MASK = 0x01
FLV_AUDIO_SAMPLERATE_MASK = 0x0c
FLV_AUDIO_CODECID_MASK = 0xf0
FLV_AUDIO_SAMPLERATE_OFFSET = 2
FLV_AUDIO_CODECID_OFFSET = 4
FLV_AUDIO_CODECID = (0x0001, 0x0002, 0x0055, 0x0001)
# video flags
FLV_VIDEO_CODECID_MASK = 0x0f
FLV_VIDEO_CODECID = ('FLV1', 'MSS1', 'VP60') # wild guess
FLV_DATA_TYPE_NUMBER = 0x00
FLV_DATA_TYPE_BOOL = 0x01
FLV_DATA_TYPE_STRING = 0x02
FLV_DATA_TYPE_OBJECT = 0x03
FLC_DATA_TYPE_CLIP = 0x04
FLV_DATA_TYPE_REFERENCE = 0x07
FLV_DATA_TYPE_ECMARRAY = 0x08
FLV_DATA_TYPE_ENDOBJECT = 0x09
FLV_DATA_TYPE_ARRAY = 0x0a
FLV_DATA_TYPE_DATE = 0x0b
FLV_DATA_TYPE_LONGSTRING = 0x0c
FLVINFO = {
'creator': 'copyright',
}
class FlashVideo(core.AVContainer):
"""
Experimental parser for Flash videos. It requires certain flags to
be set to report video resolutions and in most cases it does not
provide that information.
"""
table_mapping = { 'FLVINFO' : FLVINFO }
def __init__(self, file):
core.AVContainer.__init__(self)
self.mime = 'video/flv'
self.type = 'Flash Video'
data = file.read(13)
if len(data) < 13 or struct.unpack('>3sBBII', data)[0] != 'FLV':
raise ParseError()
for _ in range(10):
if self.audio and self.video:
break
data = file.read(11)
if len(data) < 11:
break
chunk = struct.unpack('>BH4BI', data)
size = (chunk[1] << 8) + chunk[2]
if chunk[0] == FLV_TAG_TYPE_AUDIO:
flags = ord(file.read(1))
if not self.audio:
a = core.AudioStream()
a.channels = (flags & FLV_AUDIO_CHANNEL_MASK) + 1
srate = (flags & FLV_AUDIO_SAMPLERATE_MASK)
a.samplerate = (44100 << (srate >> FLV_AUDIO_SAMPLERATE_OFFSET) >> 3)
codec = (flags & FLV_AUDIO_CODECID_MASK) >> FLV_AUDIO_CODECID_OFFSET
if codec < len(FLV_AUDIO_CODECID):
a.codec = FLV_AUDIO_CODECID[codec]
self.audio.append(a)
file.seek(size - 1, 1)
elif chunk[0] == FLV_TAG_TYPE_VIDEO:
flags = ord(file.read(1))
if not self.video:
v = core.VideoStream()
codec = (flags & FLV_VIDEO_CODECID_MASK) - 2
if codec < len(FLV_VIDEO_CODECID):
v.codec = FLV_VIDEO_CODECID[codec]
# width and height are in the meta packet, but I have
# no file with such a packet inside. So maybe we have
# to decode some parts of the video.
self.video.append(v)
file.seek(size - 1, 1)
elif chunk[0] == FLV_TAG_TYPE_META:
log.info(u'metadata %r', str(chunk))
metadata = file.read(size)
try:
while metadata:
length, value = self._parse_value(metadata)
if isinstance(value, dict):
log.info(u'metadata: %r', value)
if value.get('creator'):
self.copyright = value.get('creator')
if value.get('width'):
self.width = value.get('width')
if value.get('height'):
self.height = value.get('height')
if value.get('duration'):
self.length = value.get('duration')
self._appendtable('FLVINFO', value)
if not length:
# parse error
break
metadata = metadata[length:]
except (IndexError, struct.error, TypeError):
pass
else:
log.info(u'unkown %r', str(chunk))
file.seek(size, 1)
file.seek(4, 1)
def _parse_value(self, data):
"""
Parse the next metadata value.
"""
if ord(data[0]) == FLV_DATA_TYPE_NUMBER:
value = struct.unpack('>d', data[1:9])[0]
return 9, value
if ord(data[0]) == FLV_DATA_TYPE_BOOL:
return 2, bool(data[1])
if ord(data[0]) == FLV_DATA_TYPE_STRING:
length = (ord(data[1]) << 8) + ord(data[2])
return length + 3, data[3:length + 3]
if ord(data[0]) == FLV_DATA_TYPE_ECMARRAY:
init_length = len(data)
num = struct.unpack('>I', data[1:5])[0]
data = data[5:]
result = {}
for _ in range(num):
length = (ord(data[0]) << 8) + ord(data[1])
key = data[2:length + 2]
data = data[length + 2:]
length, value = self._parse_value(data)
if not length:
return 0, result
result[key] = value
data = data[length:]
return init_length - len(data), result
log.info(u'unknown code: %x. Stop metadata parser', ord(data[0]))
return 0, None
Parser = FlashVideo