forked from 170010011/fr
33 lines
821 B
Python
33 lines
821 B
Python
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# import the necessary packages
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import datetime
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class FPS:
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def __init__(self):
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# store the start time, end time, and total number of frames
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# that were examined between the start and end intervals
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self._start = None
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self._end = None
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self._numFrames = 0
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def start(self):
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# start the timer
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self._start = datetime.datetime.now()
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return self
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def stop(self):
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# stop the timer
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self._end = datetime.datetime.now()
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def update(self):
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# increment the total number of frames examined during the
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# start and end intervals
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self._numFrames += 1
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def elapsed(self):
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# return the total number of seconds between the start and
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# end interval
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return (self._end - self._start).total_seconds()
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def fps(self):
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# compute the (approximate) frames per second
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return self._numFrames / self.elapsed()
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