64 lines
1.6 KiB
Python
64 lines
1.6 KiB
Python
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from enum import IntEnum
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class DataInfo:
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"""
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Class contains information of frame `Packing`, `ComponentOrder`, `Alignment`.
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"""
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class Packing(IntEnum):
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"""
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Contains values of possible packing.
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"""
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P_UNKNOWN = 0
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P_PLANAR = 1
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P_PACKED = 2
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class ComponentOrder(IntEnum):
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"""
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Contains values of possible component order.
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"""
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CO_UNKNOWN = 0
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CO_UCDRX = 1
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CO_RGB = 2
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CO_RGBA = 3
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CO_BGR = 4
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CO_BGRA = 5
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CO_YCbCr = 6
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CO_CbY0CrY1 = 7
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class Alignment(IntEnum):
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"""
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Contains values of possible alignment.
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"""
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A_UNKNOWN = 0
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A_MSB = 1
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A_LSB = 2
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def __init__(self):
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self.packing = self.Packing.P_UNKNOWN
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self.component_order = self.ComponentOrder.CO_UNKNOWN
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self.alignment = self.Alignment.A_UNKNOWN
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def is_valid(self) -> bool:
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"""
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Check that information is valid (not equal UNKNOWN state).
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Returns:
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object of bool type.
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"""
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return self.packing != self.Packing.P_UNKNOWN and\
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self.component_order != self.ComponentOrder.CO_UNKNOWN and\
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self.alignment != self.Alignment.A_UNKNOWN
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def __str__(self):
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return f"Packing: {self.packing.name}\n" \
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f"Component Order: {self.component_order.name}\n" \
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f"Alignment: {self.alignment.name}\n"
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def __eq__(self, other):
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return self.packing == other.packing and \
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self.component_order == other.component_order and \
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self.alignment == other.alignment
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