39 lines
1.1 KiB
Python
39 lines
1.1 KiB
Python
# Copyright 2020 Mycroft AI Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import abc
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class MycroftVolume:
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""" abstract base class for a Mycroft Volume
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all volume classes must provide at least
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these basic methods """
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__metaclass__ = abc.ABCMeta
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@abc.abstractmethod
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def set_hw_volume(self, vol):
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"""takes in value between 0.0 - 1.0
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converts to internal format"""
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return
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@abc.abstractmethod
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def get_hw_volume(self):
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"""returns float from internal format"""
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@abc.abstractmethod
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def get_capabilities(self):
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"""returns capabilities object"""
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return
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