mirror of
https://github.com/morpheus65535/bazarr
synced 2024-12-23 00:03:33 +00:00
144 lines
4.2 KiB
Python
Executable file
144 lines
4.2 KiB
Python
Executable file
|
|
import os
|
|
import typing
|
|
from logging import NullHandler, getLogger
|
|
|
|
import knowit.config
|
|
from knowit.core import Property, Rule
|
|
from knowit.properties import Quantity
|
|
from knowit.units import units
|
|
|
|
logger = getLogger(__name__)
|
|
logger.addHandler(NullHandler())
|
|
|
|
|
|
size_property = Quantity('size', unit=units.byte, description='media size')
|
|
|
|
PropertyMap = typing.Mapping[str, Property]
|
|
PropertyConfig = typing.Mapping[str, PropertyMap]
|
|
|
|
RuleMap = typing.Mapping[str, Rule]
|
|
RuleConfig = typing.Mapping[str, RuleMap]
|
|
|
|
|
|
class Provider:
|
|
"""Base class for all providers."""
|
|
|
|
min_fps = 10
|
|
max_fps = 200
|
|
|
|
def __init__(
|
|
self,
|
|
config: knowit.config.Config,
|
|
mapping: PropertyConfig,
|
|
rules: typing.Optional[RuleConfig] = None,
|
|
):
|
|
"""Init method."""
|
|
self.config = config
|
|
self.mapping = mapping
|
|
self.rules = rules or {}
|
|
|
|
def accepts(self, target):
|
|
"""Whether or not the video is supported by this provider."""
|
|
raise NotImplementedError
|
|
|
|
def describe(self, target, context):
|
|
"""Read video metadata information."""
|
|
raise NotImplementedError
|
|
|
|
def _describe_tracks(self, video_path, general_track, video_tracks, audio_tracks, subtitle_tracks, context):
|
|
logger.debug('Handling general track')
|
|
props = self._describe_track(general_track, 'general', context)
|
|
|
|
if 'path' not in props:
|
|
props['path'] = video_path
|
|
if 'container' not in props:
|
|
props['container'] = os.path.splitext(video_path)[1][1:]
|
|
if 'size' not in props and os.path.isfile(video_path):
|
|
props['size'] = size_property.handle(os.path.getsize(video_path), context)
|
|
|
|
for track_type, tracks, in (('video', video_tracks),
|
|
('audio', audio_tracks),
|
|
('subtitle', subtitle_tracks)):
|
|
results = []
|
|
for track in tracks or []:
|
|
logger.debug('Handling %s track', track_type)
|
|
t = self._validate_track(track_type, self._describe_track(track, track_type, context))
|
|
if t:
|
|
results.append(t)
|
|
|
|
if results:
|
|
props[track_type] = results
|
|
|
|
return props
|
|
|
|
@classmethod
|
|
def _validate_track(cls, track_type, track):
|
|
if track_type != 'video' or 'frame_rate' not in track:
|
|
return track
|
|
|
|
frame_rate = track['frame_rate']
|
|
try:
|
|
frame_rate = frame_rate.magnitude
|
|
except AttributeError:
|
|
pass
|
|
|
|
if cls.min_fps < frame_rate < cls.max_fps:
|
|
return track
|
|
|
|
def _describe_track(self, track, track_type, context):
|
|
"""Describe track to a dict.
|
|
|
|
:param track:
|
|
:param track_type:
|
|
:rtype: dict
|
|
"""
|
|
props = {}
|
|
pv_props = {}
|
|
for name, prop in self.mapping[track_type].items():
|
|
if not prop:
|
|
# placeholder to be populated by rules. It keeps the order
|
|
props[name] = None
|
|
continue
|
|
|
|
value = prop.extract_value(track, context)
|
|
if value is not None:
|
|
which = props if not prop.private else pv_props
|
|
which[name] = value
|
|
|
|
for name, rule in self.rules.get(track_type, {}).items():
|
|
if props.get(name) is not None and not rule.override:
|
|
logger.debug('Skipping rule %s since property is already present: %r', name, props[name])
|
|
continue
|
|
|
|
value = rule.execute(props, pv_props, context)
|
|
if value is not None:
|
|
which = props if not rule.private else pv_props
|
|
which[name] = value
|
|
elif name in props and (not rule.override or props[name] is None):
|
|
del props[name]
|
|
|
|
return props
|
|
|
|
@property
|
|
def version(self):
|
|
"""Return provider version information."""
|
|
raise NotImplementedError
|
|
|
|
|
|
class ProviderError(Exception):
|
|
"""Base class for provider exceptions."""
|
|
|
|
pass
|
|
|
|
|
|
class MalformedFileError(ProviderError):
|
|
"""Malformed File error."""
|
|
|
|
pass
|
|
|
|
|
|
class UnsupportedFileFormatError(ProviderError):
|
|
"""Unsupported File Format error."""
|
|
|
|
pass
|