Files
2016-01-24 06:41:18 +01:00

205 lines
8.3 KiB
Python
Executable File

# coding=utf-8
import os
import logging
import traceback
from babelfish import Error as BabelfishError
from subliminal.video import SUBTITLE_EXTENSIONS, VIDEO_EXTENSIONS, Language, Video, EnzymeError, MKV, guess_file_info, hash_opensubtitles, \
hash_thesubdb
logger = logging.getLogger(__name__)
# may be absolute or relative paths; set to selected options
CUSTOM_PATHS = []
def _search_external_subtitles(path):
dirpath, filename = os.path.split(path)
dirpath = dirpath or '.'
fileroot, fileext = os.path.splitext(filename)
subtitles = {}
for p in os.listdir(dirpath):
# keep only valid subtitle filenames
if not p.startswith(fileroot) or not p.endswith(SUBTITLE_EXTENSIONS):
continue
# extract the potential language code
language_code = p[len(fileroot):-len(os.path.splitext(p)[1])].replace(fileext, '').replace('_', '-')[1:]
# default language is undefined
language = Language('und')
# attempt to parse
if language_code:
try:
language = Language.fromietf(language_code)
except ValueError:
logger.error('Cannot parse language code %r', language_code)
subtitles[p] = language
logger.debug('Found subtitles %r', subtitles)
return subtitles
def patched_search_external_subtitles(path):
"""
wrap original search_external_subtitles function to search multiple paths for one given video
# todo: cleanup and merge with _search_external_subtitles
"""
video_path, video_filename = os.path.split(path)
subtitles = {}
for folder_or_subfolder in [video_path] + CUSTOM_PATHS:
# folder_or_subfolder may be a relative path or an absolute one
try:
abspath = unicode(os.path.abspath(
os.path.join(*[video_path if not os.path.isabs(folder_or_subfolder) else "", folder_or_subfolder, video_filename])))
except Exception, e:
logger.error("skipping path %s because of %s", repr(folder_or_subfolder), e)
continue
logger.debug("external subs: scanning path %s", abspath)
if os.path.isdir(os.path.dirname(abspath)):
subtitles.update(_search_external_subtitles(abspath))
logger.debug("external subs: found %s", subtitles)
return subtitles
def scan_video(path, subtitles=True, embedded_subtitles=True, hints=None, video_fps=None, dont_use_actual_file=False):
"""Scan a video and its subtitle languages from a video `path`.
:param dont_use_actual_file: guess on filename, but don't use the actual file itself
:param str path: existing path to the video.
:param bool subtitles: scan for subtitles with the same name.
:param bool embedded_subtitles: scan for embedded subtitles.
:param hints: hints dict for guessit
:return: the scanned video.
:rtype: :class:`Video`
# patch: suggest video type to guessit beforehand
"""
hints = hints or {}
# check for non-existing path
if not dont_use_actual_file and not os.path.exists(path):
raise ValueError('Path does not exist')
# check video extension
if not path.endswith(VIDEO_EXTENSIONS):
raise ValueError('%s is not a valid video extension' % os.path.splitext(path)[1])
dirpath, filename = os.path.split(path)
# hint guessit the filename itself and its 2 parent directories if we're an episode (most likely Series name/Season/filename), else only one
guess_from = os.path.join(*os.path.normpath(path).split(os.path.sep)[-3 if hints.get("type") == "episode" else -2:])
hints = hints or {}
logger.info('Scanning video (hints: %s) %r', hints, guess_from)
# guess
try:
video = Video.fromguess(path, guess_file_info(guess_from, options=hints))
video.fps = video_fps
if dont_use_actual_file:
return video
# size and hashes
video.size = os.path.getsize(path)
if video.size > 10485760:
logger.debug('Size is %d', video.size)
video.hashes['opensubtitles'] = hash_opensubtitles(path)
video.hashes['thesubdb'] = hash_thesubdb(path)
logger.debug('Computed hashes %r', video.hashes)
else:
logger.warning('Size is lower than 10MB: hashes not computed')
# external subtitles
if subtitles:
video.subtitle_languages |= set(patched_search_external_subtitles(path).values())
except Exception:
logger.error("Something went wrong when running guessit: %s", traceback.format_exc())
return
# video metadata with enzyme
try:
if filename.endswith('.mkv'):
with open(path, 'rb') as f:
mkv = MKV(f)
# main video track
if mkv.video_tracks:
video_track = mkv.video_tracks[0]
# resolution
if video_track.height in (480, 720, 1080):
if video_track.interlaced:
video.resolution = '%di' % video_track.height
else:
video.resolution = '%dp' % video_track.height
logger.debug('Found resolution %s with enzyme', video.resolution)
# video codec
if video_track.codec_id == 'V_MPEG4/ISO/AVC':
video.video_codec = 'h264'
logger.debug('Found video_codec %s with enzyme', video.video_codec)
elif video_track.codec_id == 'V_MPEG4/ISO/SP':
video.video_codec = 'DivX'
logger.debug('Found video_codec %s with enzyme', video.video_codec)
elif video_track.codec_id == 'V_MPEG4/ISO/ASP':
video.video_codec = 'XviD'
logger.debug('Found video_codec %s with enzyme', video.video_codec)
else:
logger.warning('MKV has no video track')
# main audio track
if mkv.audio_tracks:
audio_track = mkv.audio_tracks[0]
# audio codec
if audio_track.codec_id == 'A_AC3':
video.audio_codec = 'AC3'
logger.debug('Found audio_codec %s with enzyme', video.audio_codec)
elif audio_track.codec_id == 'A_DTS':
video.audio_codec = 'DTS'
logger.debug('Found audio_codec %s with enzyme', video.audio_codec)
elif audio_track.codec_id == 'A_AAC':
video.audio_codec = 'AAC'
logger.debug('Found audio_codec %s with enzyme', video.audio_codec)
else:
logger.warning('MKV has no audio track')
# subtitle tracks
if mkv.subtitle_tracks:
if embedded_subtitles:
embedded_subtitle_languages = set()
for st in mkv.subtitle_tracks:
if st.forced:
logger.debug("Ignoring forced subtitle track %r", st)
continue
if st.language:
try:
embedded_subtitle_languages.add(Language.fromalpha3b(st.language))
except BabelfishError:
logger.error('Embedded subtitle track language %r is not a valid language', st.language)
embedded_subtitle_languages.add(Language('und'))
elif st.name:
try:
embedded_subtitle_languages.add(Language.fromname(st.name))
except BabelfishError:
logger.debug('Embedded subtitle track name %r is not a valid language', st.name)
embedded_subtitle_languages.add(Language('und'))
else:
embedded_subtitle_languages.add(Language('und'))
logger.debug('Found embedded subtitle %r with enzyme', embedded_subtitle_languages)
video.subtitle_languages |= embedded_subtitle_languages
else:
logger.debug('MKV has no subtitle track')
except EnzymeError:
logger.error('Parsing video metadata with enzyme failed')
except Exception:
logger.error("Parsing video with enzyme has gone terribly wrong: %s", traceback.format_exc())
return video