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DMRlink/play_group.py

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Python
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#!/usr/bin/env python
#
###############################################################################
# Copyright (C) 2016 Cortney T. Buffington, N0MJS <n0mjs@me.com>
#
# 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 3 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 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
###############################################################################
# This is a sample application that "plays" a voice tranmission from a file
# that was created with record.py. The file is just a pickle of an entire
# transmission.
#
# This program consults a list of "trigger groups" for each timeslot that
# will initiate playback. When playback occurs, several items are re-written:
# Source Subscriber: this DMRlink's local subscriber ID
# Source Peer: this DMRlink's local subscriber ID
# Timeslot: timeslot of the tranmission that triggered
# TGID: TGID of the message that triggered it
from __future__ import print_function
from twisted.internet import reactor
import sys, time
import cPickle as pickle
from dmrlink import IPSC, systems
from dmr_utils.utils import int_id, hex_str_3
from ipsc.ipsc_const import BURST_DATA_TYPE
__author__ = 'Cortney T. Buffington, N0MJS'
__copyright__ = 'Copyright (c) 2014 - 2015 Cortney T. Buffington, N0MJS and the K0USY Group'
__credits__ = 'Adam Fast, KC0YLK; Dave Kierzkowski KD8EYF'
__license__ = 'GNU GPLv3'
__maintainer__ = 'Cort Buffington, N0MJS'
__email__ = 'n0mjs@me.com'
# path+filename for the transmission to play back
filename = '../test.pickle'
# trigger logic - True, trigger on these IDs, False trigger on any but these IDs
trigger = True
# groups that we want to trigger playback of this file (ts1 and ts2)
# Note this is a python list type, even if there's just one value
trigger_groups_1 = ['\x00\x00\x01', '\x00\x00\x0D', '\x00\x00\x64']
trigger_groups_2 = ['\x00\x0C\x30',]
class playIPSC(IPSC):
def __init__(self, _name, _config, _logger):
IPSC.__init__(self, _name, _config, _logger)
self.CALL_DATA = []
self.event_id = 1
#************************************************
# CALLBACK FUNCTIONS FOR USER PACKET TYPES
#************************************************
#
def group_voice(self, _src_sub, _dst_group, _ts, _end, _peerid, _data):
if _end:
_self_peer = self._config['LOCAL']['RADIO_ID']
_self_src = _self_peer[1:]
if (_peerid == _self_peer) or (_src_sub == _self_src):
self._logger.error('(%s) Just received a packet that appears to have been originated by us. PeerID: %s Subscriber: %s TS: %s, TGID: %s', self._system, int_id(_peerid), int_id(_src_sub), int(_ts), int_id(_dst_group))
return
if trigger == False:
if (_ts == 1 and _dst_group not in trigger_groups_1) or (_ts == 2 and _dst_group not in trigger_groups_2):
return
else:
if (_ts == 1 and _dst_group not in trigger_groups_1) or (_ts == 2 and _dst_group not in trigger_groups_2):
return
self._logger.info('(%s) Event ID: %s - Playback triggered from SourceID: %s, TS: %s, TGID: %s, PeerID: %s', self._system, self.event_id, int_id(_src_sub), _ts, int_id(_dst_group), int_id(_peerid))
# Determine the type of voice packet this is (see top of file for possible types)
_burst_data_type = _data[30]
time.sleep(2)
self.CALL_DATA = pickle.load(open(filename, 'rb'))
self._logger.info('(%s) Event ID: %s - Playing back file: %s', self._system, self.event_id, filename)
for i in self.CALL_DATA:
_tmp_data = i
# re-Write the peer radio ID to that of this program
_tmp_data = _tmp_data.replace(_peerid, _self_peer)
# re-Write the source subscriber ID to that of this program
_tmp_data = _tmp_data.replace(_src_sub, _self_src)
# Re-Write the destination Group ID
_tmp_data = _tmp_data.replace(_tmp_data[9:12], _dst_group)
# Re-Write IPSC timeslot value
_call_info = int_id(_tmp_data[17:18])
if _ts == 1:
_call_info &= ~(1 << 5)
elif _ts == 2:
_call_info |= 1 << 5
_call_info = chr(_call_info)
_tmp_data = _tmp_data[:17] + _call_info + _tmp_data[18:]
# Re-Write DMR timeslot value
# Determine if the slot is present, so we can translate if need be
if _burst_data_type == BURST_DATA_TYPE['SLOT1_VOICE'] or _burst_data_type == BURST_DATA_TYPE['SLOT2_VOICE']:
# Re-Write timeslot if necessary...
if _ts == 1:
_burst_data_type = BURST_DATA_TYPE['SLOT1_VOICE']
elif _ts == 2:
_burst_data_type = BURST_DATA_TYPE['SLOT2_VOICE']
_tmp_data = _tmp_data[:30] + _burst_data_type + _tmp_data[31:]
# Send the packet to all peers in the target IPSC
self.send_to_ipsc(_tmp_data)
time.sleep(0.06)
self.CALL_DATA = []
self._logger.info('(%s) Event ID: %s - Playback Completed', self._system, self.event_id)
self.event_id = self.event_id + 1
if __name__ == '__main__':
import argparse
import os
import sys
import signal
import dmrlink_log
import dmrlink_config
# Change the current directory to the location of the application
os.chdir(os.path.dirname(os.path.realpath(sys.argv[0])))
# CLI argument parser - handles picking up the config file from the command line, and sending a "help" message
parser = argparse.ArgumentParser()
parser.add_argument('-c', '--config', action='store', dest='CFG_FILE', help='/full/path/to/config.file (usually dmrlink.cfg)')
parser.add_argument('-ll', '--log_level', action='store', dest='LOG_LEVEL', help='Override config file logging level.')
parser.add_argument('-lh', '--log_handle', action='store', dest='LOG_HANDLERS', help='Override config file logging handler.')
cli_args = parser.parse_args()
if not cli_args.CFG_FILE:
cli_args.CFG_FILE = os.path.dirname(os.path.abspath(__file__))+'/dmrlink.cfg'
# Call the external routine to build the configuration dictionary
CONFIG = dmrlink_config.build_config(cli_args.CFG_FILE)
# Call the external routing to start the system logger
if cli_args.LOG_LEVEL:
CONFIG['LOGGER']['LOG_LEVEL'] = cli_args.LOG_LEVEL
if cli_args.LOG_HANDLERS:
CONFIG['LOGGER']['LOG_HANDLERS'] = cli_args.LOG_HANDLERS
logger = dmrlink_log.config_logging(CONFIG['LOGGER'])
logger.info('DMRlink \'record.py\' (c) 2014 N0MJS & the K0USY Group - SYSTEM STARTING...')
# Shut ourselves down gracefully with the IPSC peers.
def sig_handler(_signal, _frame):
logger.info('*** DMRLINK IS TERMINATING WITH SIGNAL %s ***', str(_signal))
for system in systems:
this_ipsc = systems[system]
logger.info('De-Registering from IPSC %s', system)
de_reg_req_pkt = this_ipsc.hashed_packet(this_ipsc._local['AUTH_KEY'], this_ipsc.DE_REG_REQ_PKT)
this_ipsc.send_to_ipsc(de_reg_req_pkt)
reactor.stop()
# Set signal handers so that we can gracefully exit if need be
for sig in [signal.SIGTERM, signal.SIGINT, signal.SIGQUIT]:
signal.signal(sig, sig_handler)
# INITIALIZE AN IPSC OBJECT (SELF SUSTAINING) FOR EACH CONFIGUED IPSC
for system in CONFIG['SYSTEMS']:
if CONFIG['SYSTEMS'][system]['LOCAL']['ENABLED']:
systems[system] = playIPSC(system, CONFIG, logger)
reactor.listenUDP(CONFIG['SYSTEMS'][system]['LOCAL']['PORT'], systems[system], interface=CONFIG['SYSTEMS'][system]['LOCAL']['IP'])
reactor.run()
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