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mirror of https://github.com/moparisthebest/SickRage synced 2024-10-31 15:35:01 -04:00
SickRage/lib/subliminal/core.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

276 lines
12 KiB
Python

# -*- coding: utf-8 -*-
# Copyright 2011-2012 Antoine Bertin <diaoulael@gmail.com>
#
# This file is part of subliminal.
#
# subliminal is free software; you can redistribute it and/or modify it under
# the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# subliminal 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 Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with subliminal. If not, see <http://www.gnu.org/licenses/>.
from .exceptions import DownloadFailedError
from .services import ServiceConfig
from .tasks import DownloadTask, ListTask
from .utils import get_keywords
from .videos import Episode, Movie, scan
from .language import Language
from collections import defaultdict
from itertools import groupby
import bs4
import guessit
import logging
__all__ = ['SERVICES', 'LANGUAGE_INDEX', 'SERVICE_INDEX', 'SERVICE_CONFIDENCE', 'MATCHING_CONFIDENCE',
'create_list_tasks', 'create_download_tasks', 'consume_task', 'matching_confidence',
'key_subtitles', 'group_by_video']
logger = logging.getLogger("subliminal")
SERVICES = ['opensubtitles', 'subswiki', 'subtitulos', 'thesubdb', 'addic7ed', 'tvsubtitles', 'itasa', 'usub']
LANGUAGE_INDEX, SERVICE_INDEX, SERVICE_CONFIDENCE, MATCHING_CONFIDENCE = range(4)
def create_list_tasks(paths, languages, services, force, multi, cache_dir, max_depth, scan_filter):
"""Create a list of :class:`~subliminal.tasks.ListTask` from one or more paths using the given criteria
:param paths: path(s) to video file or folder
:type paths: string or list
:param set languages: languages to search for
:param list services: services to use for the search
:param bool force: force searching for subtitles even if some are detected
:param bool multi: search multiple languages for the same video
:param string cache_dir: path to the cache directory to use
:param int max_depth: maximum depth for scanning entries
:param function scan_filter: filter function that takes a path as argument and returns a boolean indicating whether it has to be filtered out (``True``) or not (``False``)
:return: the created tasks
:rtype: list of :class:`~subliminal.tasks.ListTask`
"""
scan_result = []
for p in paths:
scan_result.extend(scan(p, max_depth, scan_filter))
logger.debug(u'Found %d videos in %r with maximum depth %d' % (len(scan_result), paths, max_depth))
tasks = []
config = ServiceConfig(multi, cache_dir)
services = filter_services(services)
for video, detected_subtitles in scan_result:
detected_languages = set(s.language for s in detected_subtitles)
wanted_languages = languages.copy()
if not force and multi:
wanted_languages -= detected_languages
if not wanted_languages:
logger.debug(u'No need to list multi subtitles %r for %r because %r detected' % (languages, video, detected_languages))
continue
if not force and not multi and Language('Undetermined') in detected_languages:
logger.debug(u'No need to list single subtitles %r for %r because one detected' % (languages, video))
continue
logger.debug(u'Listing subtitles %r for %r with services %r' % (wanted_languages, video, services))
for service_name in services:
mod = __import__('services.' + service_name, globals=globals(), locals=locals(), fromlist=['Service'], level=-1)
service = mod.Service
if not service.check_validity(video, wanted_languages):
continue
task = ListTask(video, wanted_languages & service.languages, service_name, config)
logger.debug(u'Created task %r' % task)
tasks.append(task)
return tasks
def create_download_tasks(subtitles_by_video, languages, multi):
"""Create a list of :class:`~subliminal.tasks.DownloadTask` from a list results grouped by video
:param subtitles_by_video: :class:`~subliminal.tasks.ListTask` results with ordered subtitles
:type subtitles_by_video: dict of :class:`~subliminal.videos.Video` => [:class:`~subliminal.subtitles.Subtitle`]
:param languages: languages in preferred order
:type languages: :class:`~subliminal.language.language_list`
:param bool multi: download multiple languages for the same video
:return: the created tasks
:rtype: list of :class:`~subliminal.tasks.DownloadTask`
"""
tasks = []
for video, subtitles in subtitles_by_video.iteritems():
if not subtitles:
continue
if not multi:
task = DownloadTask(video, list(subtitles))
logger.debug(u'Created task %r' % task)
tasks.append(task)
continue
for _, by_language in groupby(subtitles, lambda s: languages.index(s.language)):
task = DownloadTask(video, list(by_language))
logger.debug(u'Created task %r' % task)
tasks.append(task)
return tasks
def consume_task(task, services=None):
"""Consume a task. If the ``services`` parameter is given, the function will attempt
to get the service from it. In case the service is not in ``services``, it will be initialized
and put in ``services``
:param task: task to consume
:type task: :class:`~subliminal.tasks.ListTask` or :class:`~subliminal.tasks.DownloadTask`
:param dict services: mapping between the service name and an instance of this service
:return: the result of the task
:rtype: list of :class:`~subliminal.subtitles.ResultSubtitle`
"""
if services is None:
services = {}
logger.info(u'Consuming %r' % task)
result = None
if isinstance(task, ListTask):
service = get_service(services, task.service, config=task.config)
result = service.list(task.video, task.languages)
elif isinstance(task, DownloadTask):
for subtitle in task.subtitles:
service = get_service(services, subtitle.service)
try:
service.download(subtitle)
result = [subtitle]
break
except DownloadFailedError:
logger.warning(u'Could not download subtitle %r, trying next' % subtitle)
continue
if result is None:
logger.error(u'No subtitles could be downloaded for video %r' % task.video)
return result
def matching_confidence(video, subtitle):
"""Compute the probability (confidence) that the subtitle matches the video
:param video: video to match
:type video: :class:`~subliminal.videos.Video`
:param subtitle: subtitle to match
:type subtitle: :class:`~subliminal.subtitles.Subtitle`
:return: the matching probability
:rtype: float
"""
guess = guessit.guess_file_info(subtitle.release, 'autodetect')
video_keywords = get_keywords(video.guess)
subtitle_keywords = get_keywords(guess) | subtitle.keywords
logger.debug(u'Video keywords %r - Subtitle keywords %r' % (video_keywords, subtitle_keywords))
replacement = {'keywords': len(video_keywords & subtitle_keywords)}
if isinstance(video, Episode):
replacement.update({'series': 0, 'season': 0, 'episode': 0})
matching_format = '{series:b}{season:b}{episode:b}{keywords:03b}'
best = matching_format.format(series=1, season=1, episode=1, keywords=len(video_keywords))
if guess['type'] in ['episode', 'episodesubtitle']:
if 'series' in guess and guess['series'].lower() == video.series.lower():
replacement['series'] = 1
if 'season' in guess and guess['season'] == video.season:
replacement['season'] = 1
if 'episodeNumber' in guess and guess['episodeNumber'] == video.episode:
replacement['episode'] = 1
elif isinstance(video, Movie):
replacement.update({'title': 0, 'year': 0})
matching_format = '{title:b}{year:b}{keywords:03b}'
best = matching_format.format(title=1, year=1, keywords=len(video_keywords))
if guess['type'] in ['movie', 'moviesubtitle']:
if 'title' in guess and guess['title'].lower() == video.title.lower():
replacement['title'] = 1
if 'year' in guess and guess['year'] == video.year:
replacement['year'] = 1
else:
logger.debug(u'Not able to compute confidence for %r' % video)
return 0.0
logger.debug(u'Found %r' % replacement)
confidence = float(int(matching_format.format(**replacement), 2)) / float(int(best, 2))
logger.info(u'Computed confidence %.4f for %r and %r' % (confidence, video, subtitle))
return confidence
def get_service(services, service_name, config=None):
"""Get a service from its name in the service dict with the specified config.
If the service does not exist in the service dict, it is created and added to the dict.
:param dict services: dict where to get existing services or put created ones
:param string service_name: name of the service to get
:param config: config to use for the service
:type config: :class:`~subliminal.services.ServiceConfig` or None
:return: the corresponding service
:rtype: :class:`~subliminal.services.ServiceBase`
"""
if service_name not in services:
mod = __import__('services.' + service_name, globals=globals(), locals=locals(), fromlist=['Service'], level=-1)
services[service_name] = mod.Service()
services[service_name].init()
services[service_name].config = config
return services[service_name]
def key_subtitles(subtitle, video, languages, services, order):
"""Create a key to sort subtitle using the given order
:param subtitle: subtitle to sort
:type subtitle: :class:`~subliminal.subtitles.ResultSubtitle`
:param video: video to match
:type video: :class:`~subliminal.videos.Video`
:param list languages: languages in preferred order
:param list services: services in preferred order
:param order: preferred order for subtitles sorting
:type list: list of :data:`LANGUAGE_INDEX`, :data:`SERVICE_INDEX`, :data:`SERVICE_CONFIDENCE`, :data:`MATCHING_CONFIDENCE`
:return: a key ready to use for subtitles sorting
:rtype: int
"""
key = ''
for sort_item in order:
if sort_item == LANGUAGE_INDEX:
key += '{0:03d}'.format(len(languages) - languages.index(subtitle.language) - 1)
key += '{0:01d}'.format(subtitle.language == languages[languages.index(subtitle.language)])
elif sort_item == SERVICE_INDEX:
key += '{0:02d}'.format(len(services) - services.index(subtitle.service) - 1)
elif sort_item == SERVICE_CONFIDENCE:
key += '{0:04d}'.format(int(subtitle.confidence * 1000))
elif sort_item == MATCHING_CONFIDENCE:
confidence = 0
if subtitle.release:
confidence = matching_confidence(video, subtitle)
key += '{0:04d}'.format(int(confidence * 1000))
return int(key)
def group_by_video(list_results):
"""Group the results of :class:`ListTasks <subliminal.tasks.ListTask>` into a
dictionary of :class:`~subliminal.videos.Video` => :class:`~subliminal.subtitles.Subtitle`
:param list_results:
:type list_results: list of result of :class:`~subliminal.tasks.ListTask`
:return: subtitles grouped by videos
:rtype: dict of :class:`~subliminal.videos.Video` => [:class:`~subliminal.subtitles.Subtitle`]
"""
result = defaultdict(list)
for video, subtitles in list_results:
result[video] += subtitles or []
return result
def filter_services(services):
"""Filter out services that are not available because of a missing feature
:param list services: service names to filter
:return: a copy of the initial list of service names without unavailable ones
:rtype: list
"""
filtered_services = services[:]
for service_name in services:
mod = __import__('services.' + service_name, globals=globals(), locals=locals(), fromlist=['Service'], level=-1)
service = mod.Service
if service.required_features is not None and bs4.builder_registry.lookup(*service.required_features) is None:
logger.warning(u'Service %s not available: none of available features could be used. One of %r required' % (service_name, service.required_features))
filtered_services.remove(service_name)
return filtered_services