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#!/usr/bin/env python
# This program 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 2 of the License, or
# (at your option) any later version.
#
# This program 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 Library General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
# ola_fetch_dmx.py
# Copyright (C) 2020 Peter Newman
"""Gets a current frame of DMX for a universe."""
from __future__ import print_function
import getopt
import sys
import textwrap
from ola.ClientWrapper import ClientWrapper
__author__ = 'nomis52@gmail.com (Simon Newton)'
wrapper = None
def DMXData(status, universe, data):
if status.Succeeded():
print(data)
else:
print('Error: %s' % status.message, file=sys.stderr)
global wrapper
if wrapper:
wrapper.Stop()
def Usage():
print(textwrap.dedent("""
Usage: ola_fetch_dmx.py --universe <universe>
Fetch the current DXM512 data for the universe and exit.
-h, --help Display this help message and exit.
-u, --universe <universe> Universe number."""))
def main():
try:
opts, args = getopt.getopt(sys.argv[1:], "hu:", ["help", "universe="])
except getopt.GetoptError as err:
print(str(err))
Usage()
sys.exit(2)
universe = 1
for o, a in opts:
if o in ("-h", "--help"):
Usage()
sys.exit()
elif o in ("-u", "--universe"):
universe = int(a)
global wrapper
wrapper = ClientWrapper()
client = wrapper.Client()
client.FetchDmx(universe, DMXData)
wrapper.Run()
if __name__ == '__main__':
main()
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