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56 lines
1.3 KiB
56 lines
1.3 KiB
3 years ago
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import typing
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from knowit.core import Configurable, Property
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class BitRateMode(Configurable[str]):
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"""Bit Rate mode property."""
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class AudioCompression(Configurable[str]):
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"""Audio Compression property."""
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class AudioProfile(Configurable[str]):
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"""Audio profile property."""
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class AudioChannels(Property[int]):
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"""Audio Channels property."""
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ignored = {
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'object based', # Dolby Atmos
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}
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def handle(self, value: typing.Union[int, str], context: typing.MutableMapping) -> typing.Optional[int]:
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"""Handle audio channels."""
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if isinstance(value, int):
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return value
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if value.lower() not in self.ignored:
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try:
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return int(value)
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except ValueError:
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self.report(value, context)
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return None
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class AudioCodec(Configurable[str]):
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"""Audio codec property."""
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@classmethod
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def _extract_key(cls, value) -> str:
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key = str(value).upper()
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if key.startswith('A_'):
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key = key[2:]
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# only the first part of the word. E.g.: 'AAC LC' => 'AAC'
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return key.split(' ')[0]
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@classmethod
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def _extract_fallback_key(cls, value, key) -> typing.Optional[str]:
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if '/' in key:
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return key.split('/')[0]
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else:
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return None
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