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34 lines
1005 B
34 lines
1005 B
5 years ago
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# -*- coding: utf-8 -*-
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from __future__ import unicode_literals
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from ...rule import Rule
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class AtmosRule(Rule):
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"""Atmos rule."""
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@classmethod
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def _redefine(cls, props, name, index):
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actual = props.get(name)
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if isinstance(actual, list):
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value = actual[index]
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if value is None:
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del props[name]
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else:
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props[name] = value
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def execute(self, props, pv_props, context):
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"""Execute the rule against properties."""
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codecs = props.get('codec') or []
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# TODO: handle this properly
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if 'atmos' in {codec.lower() for codec in codecs if codec}:
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index = None
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for i, codec in enumerate(codecs):
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if codec and 'atmos' in codec.lower():
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index = i
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break
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if index is not None:
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for name in ('channels_count', 'sampling_rate'):
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self._redefine(props, name, index)
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