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pt4_bitreader.py
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pt4_bitreader.py
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#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# This file is part of pt4utils.
#
# Copyright (C) 2013, Marcelo Martins.
#
# pt4utils was developed in affiliation with Brown University,
# Department of Computer Science. For more information about the
# department, see <http://www.cs.brown.edu/>.
#
# pt4utils is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# pt4utils is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with pt4utils. If not, see <http://www.gnu.org/licenses/>.
#
from datetime import datetime
from bitreader import BitReader
class Pt4BitReader(BitReader):
""" Interpreter for binary stream from Pt4 file """
def readDateTime(self):
""" Read and return date in epoch format
"""
epochShiftValue = 62135596800000L
val = self.readUInt64()
kind = val >> 62
ticks = val & 0x3FFFFFFFFFFFFFFFL
#return datetime.fromtimestamp((ticks / 10000) - epochShiftValue)
return 0
if __name__ == "__main__":
import doctest
doctest.testmod()