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profile_loader.py
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80 lines (71 loc) · 2.74 KB
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import logging
import jsonschema
from .profile_data_parser import AbstractProfileDataParser
from .profile_data_provider import AbstractProfileDataProvider
from .profile import FFmpegProfile
profile_loader = None
class ProfileLoader:
PROFILE_SCHEMA = {
'title': 'Profile',
'type': 'object',
'properties': {
'inputs': {
'title': 'Profile inputs list',
'type': 'array',
'items': {
'title': 'Profile input',
'type': 'object',
'properties': {
'parameters': {
'title': 'Profile input\'s parameters',
'type': 'array',
'items': {
'title': 'Profile input\'s parameter',
'type': 'string'
}
}
},
'required': ['parameters', ]
},
'minItems': 1
},
'outputs': {
'title': 'Profile outputs list',
'type': 'array',
'items': {
'title': 'Profile output',
'type': 'object',
'properties': {
'parameters': {
'title': 'Profile output\'s parameters',
'type': 'array',
'items': {
'title': 'Profile output\'s parameter',
'type': 'string'
}
},
'filename': {
'title': 'Profile output\'s filename',
'type': 'string'
}
},
'required': ['parameters', 'filename', ]
},
'minItems': 1
}
},
'required': ['inputs', 'outputs']
}
def __init__(self, data_provider: AbstractProfileDataProvider,
data_parser: AbstractProfileDataParser):
self._data_provider = data_provider
self._data_parser = data_parser
def get_profile(self, profile_name: str, **kwargs) -> FFmpegProfile:
profile_data = self._data_provider.get_profile_data(profile_name, **kwargs)
profile_dict = self._data_parser.parse_profile_data(profile_data)
self._validate_profile(profile_dict)
return FFmpegProfile(profile_dict)
@classmethod
def _validate_profile(cls, profile_dict):
logging.debug('Validating profile...')
jsonschema.validate(profile_dict, cls.PROFILE_SCHEMA)