From 1b265d836827c4aa6fa16a2e0a985a0e3bec697d Mon Sep 17 00:00:00 2001
From: n0mjs710 <n0mjs@me.com>
Date: Wed, 25 Sep 2019 09:56:03 -0500
Subject: [PATCH] Initial Upload -- seems to work.
---
playback.py | 227 ++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 227 insertions(+)
create mode 100755 playback.py
diff --git a/playback.py b/playback.py
new file mode 100755
index 0000000..7f5ec66
--- /dev/null
+++ b/playback.py
@@ -0,0 +1,227 @@
+#!/usr/bin/env python
+#
+###############################################################################
+# Copyright (C) 2016-2019 Cortney T. Buffington, N0MJS <n0mjs@me.com> (and Mike Zingman N4IRR)
+#
+# 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
+###############################################################################
+
+
+# Python modules we need
+import sys
+from bitarray import bitarray
+from time import time, sleep
+from importlib import import_module
+
+# Twisted is pretty important, so I keep it separate
+from twisted.internet.protocol import Factory, Protocol
+from twisted.protocols.basic import NetstringReceiver
+from twisted.internet import reactor, task
+
+# Things we import from the main hblink module
+from hblink import HBSYSTEM, systems, hblink_handler, reportFactory, REPORT_OPCODES, config_reports, mk_aliases
+from dmr_utils3.utils import bytes_3, int_id, get_alias
+from dmr_utils3 import decode, bptc, const
+import config
+import log
+import const
+
+# The module needs logging logging, but handlers, etc. are controlled by the parent
+import logging
+logger = logging.getLogger(__name__)
+
+
+# Does anybody read this stuff? There's a PEP somewhere that says I should do this.
+__author__ = 'Cortney T. Buffington, N0MJS and Mike Zingman, N4IRR'
+__copyright__ = 'Copyright (c) 2016-2019 Cortney T. Buffington, N0MJS and the K0USY Group'
+__license__ = 'GNU GPLv3'
+__maintainer__ = 'Cort Buffington, N0MJS'
+__email__ = 'n0mjs@me.com'
+__status__ = 'pre-alpha'
+
+# Module gobal varaibles
+
+class playback(HBSYSTEM):
+
+ def __init__(self, _name, _config, _report):
+ HBSYSTEM.__init__(self, _name, _config, _report)
+
+ # Status information for the system, TS1 & TS2
+ # 1 & 2 are "timeslot"
+ # In TX_EMB_LC, 2-5 are burst B-E
+ self.STATUS = {
+ 1: {
+ 'RX_START': time(),
+ 'RX_SEQ': '\x00',
+ 'RX_RFS': '\x00',
+ 'TX_RFS': '\x00',
+ 'RX_STREAM_ID': '\x00',
+ 'TX_STREAM_ID': '\x00',
+ 'RX_TGID': '\x00\x00\x00',
+ 'TX_TGID': '\x00\x00\x00',
+ 'RX_TIME': time(),
+ 'TX_TIME': time(),
+ 'RX_TYPE': const.HBPF_SLT_VTERM,
+ 'RX_LC': '\x00',
+ 'TX_H_LC': '\x00',
+ 'TX_T_LC': '\x00',
+ 'TX_EMB_LC': {
+ 1: '\x00',
+ 2: '\x00',
+ 3: '\x00',
+ 4: '\x00',
+ }
+ },
+ 2: {
+ 'RX_START': time(),
+ 'RX_SEQ': '\x00',
+ 'RX_RFS': '\x00',
+ 'TX_RFS': '\x00',
+ 'RX_STREAM_ID': '\x00',
+ 'TX_STREAM_ID': '\x00',
+ 'RX_TGID': '\x00\x00\x00',
+ 'TX_TGID': '\x00\x00\x00',
+ 'RX_TIME': time(),
+ 'TX_TIME': time(),
+ 'RX_TYPE': const.HBPF_SLT_VTERM,
+ 'RX_LC': '\x00',
+ 'TX_H_LC': '\x00',
+ 'TX_T_LC': '\x00',
+ 'TX_EMB_LC': {
+ 1: '\x00',
+ 2: '\x00',
+ 3: '\x00',
+ 4: '\x00',
+ }
+ }
+ }
+ self.CALL_DATA = []
+
+ def dmrd_received(self, _peer_id, _rf_src, _dst_id, _seq, _slot, _call_type, _frame_type, _dtype_vseq, _stream_id, _data):
+ pkt_time = time()
+ dmrpkt = _data[20:53]
+ _bits = _data[15]
+ if _call_type == 'group':
+
+ # Is this is a new call stream?
+ if (_stream_id != self.STATUS[_slot]['RX_STREAM_ID']):
+ self.STATUS['RX_START'] = pkt_time
+ logger.info('(%s) *CALL START* STREAM ID: %s SUB: %s (%s) REPEATER: %s (%s) TGID %s (%s), TS %s', \
+ self._system, int_id(_stream_id), get_alias(_rf_src, subscriber_ids), int_id(_rf_src), get_alias(_peer_id, peer_ids), int_id(_peer_id), get_alias(_dst_id, talkgroup_ids), int_id(_dst_id), _slot)
+
+
+ # Final actions - Is this a voice terminator?
+ if (_frame_type == const.HBPF_DATA_SYNC) and (_dtype_vseq == const.HBPF_SLT_VTERM) and (self.STATUS[_slot]['RX_TYPE'] != const.HBPF_SLT_VTERM):
+ call_duration = pkt_time - self.STATUS['RX_START']
+ logger.info('(%s) *CALL END* STREAM ID: %s SUB: %s (%s) REPEATER: %s (%s) TGID %s (%s), TS %s, Duration: %s', \
+ self._system, int_id(_stream_id), get_alias(_rf_src, subscriber_ids), int_id(_rf_src), get_alias(_peer_id, peer_ids), int_id(_peer_id), get_alias(_dst_id, talkgroup_ids), int_id(_dst_id), _slot, call_duration)
+ self.CALL_DATA.append(_data)
+ sleep(2)
+ logger.info('(%s) Playing back transmission from subscriber: %s', self._system, int_id(_rf_src))
+ for i in self.CALL_DATA:
+ self.send_system(i)
+ #print(i)
+ sleep(0.06)
+ self.CALL_DATA = []
+
+ else:
+ if not self.CALL_DATA:
+ logger.info('(%s) Receiving transmission to be played back from subscriber: %s', self._system, int_id(_rf_src))
+ self.CALL_DATA.append(_data)
+
+
+ # Mark status variables for use later
+ self.STATUS[_slot]['RX_RFS'] = _rf_src
+ self.STATUS[_slot]['RX_TYPE'] = _dtype_vseq
+ self.STATUS[_slot]['RX_TGID'] = _dst_id
+ self.STATUS[_slot]['RX_TIME'] = pkt_time
+ self.STATUS[_slot]['RX_STREAM_ID'] = _stream_id
+
+
+#************************************************
+# MAIN PROGRAM LOOP STARTS HERE
+#************************************************
+
+if __name__ == '__main__':
+
+ import argparse
+ import sys
+ import os
+ import signal
+ from dmr_utils3.utils import try_download, mk_id_dict
+
+ # 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='CONFIG_FILE', help='/full/path/to/config.file (usually hblink.cfg)')
+ parser.add_argument('-l', '--logging', action='store', dest='LOG_LEVEL', help='Override config file logging level.')
+ cli_args = parser.parse_args()
+
+ # Ensure we have a path for the config file, if one wasn't specified, then use the default (top of file)
+ if not cli_args.CONFIG_FILE:
+ cli_args.CONFIG_FILE = os.path.dirname(os.path.abspath(__file__))+'/hblink.cfg'
+
+ # Call the external routine to build the configuration dictionary
+ CONFIG = config.build_config(cli_args.CONFIG_FILE)
+
+ # Start the system logger
+ if cli_args.LOG_LEVEL:
+ CONFIG['LOGGER']['LOG_LEVEL'] = cli_args.LOG_LEVEL
+ logger = log.config_logging(CONFIG['LOGGER'])
+ logger.info('\n\nCopyright (c) 2013, 2014, 2015, 2016, 2018, 2019\n\tThe Founding Members of the K0USY Group. All rights reserved.\n')
+ logger.debug('Logging system started, anything from here on gets logged')
+
+ # Set up the signal handler
+ def sig_handler(_signal, _frame):
+ logger.info('SHUTDOWN: HBROUTER IS TERMINATING WITH SIGNAL %s', str(_signal))
+ hblink_handler(_signal, _frame)
+ logger.info('SHUTDOWN: ALL SYSTEM HANDLERS EXECUTED - STOPPING REACTOR')
+ reactor.stop()
+
+ # Set signal handers so that we can gracefully exit if need be
+ for sig in [signal.SIGTERM, signal.SIGINT]:
+ signal.signal(sig, sig_handler)
+
+ # ID ALIAS CREATION
+ # Download
+ if CONFIG['ALIASES']['TRY_DOWNLOAD'] == True:
+ # Try updating peer aliases file
+ result = try_download(CONFIG['ALIASES']['PATH'], CONFIG['ALIASES']['PEER_FILE'], CONFIG['ALIASES']['PEER_URL'], CONFIG['ALIASES']['STALE_TIME'])
+ logger.info(result)
+ # Try updating subscriber aliases file
+ result = try_download(CONFIG['ALIASES']['PATH'], CONFIG['ALIASES']['SUBSCRIBER_FILE'], CONFIG['ALIASES']['SUBSCRIBER_URL'], CONFIG['ALIASES']['STALE_TIME'])
+ logger.info(result)
+
+ # Create the name-number mapping dictionaries
+ peer_ids, subscriber_ids, talkgroup_ids = mk_aliases(CONFIG)
+
+ # INITIALIZE THE REPORTING LOOP
+ report_server = config_reports(CONFIG, reportFactory)
+
+ # HBlink instance creation
+ logger.info('HBlink \'playback.py\' (c) 2017-2019 Cort Buffington, N0MJS & Mike Zingman, N4IRR -- SYSTEM STARTING...')
+ for system in CONFIG['SYSTEMS']:
+ if CONFIG['SYSTEMS'][system]['ENABLED']:
+ if CONFIG['SYSTEMS'][system]['MODE'] == 'OPENBRIDGE':
+ logger.critical('%s FATAL: Instance is mode \'OPENBRIDGE\', \n\t\t...Which would be tragic for playback, since it carries multiple call\n\t\tstreams simultaneously. playback.py onlyl works with MMDVM-based systems', system)
+ sys.exit('playback.py cannot function with systems that are not MMDVM devices. System {} is configured as an OPENBRIDGE'.format(system))
+ else:
+ systems[system] = playback(system, CONFIG, report_server)
+ reactor.listenUDP(CONFIG['SYSTEMS'][system]['PORT'], systems[system], interface=CONFIG['SYSTEMS'][system]['IP'])
+ logger.debug('%s instance created: %s, %s', CONFIG['SYSTEMS'][system]['MODE'], system, systems[system])
+
+ reactor.run()