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DMRlink
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Working: TGID, TS and SRC translation working! 

This application now meets it’s target functionality!
This commit is contained in:
Cort Buffington 2015-08-12 10:06:30 -05:00
parent 075dad4ee9
commit 0076fd5f5a
1 changed files with 65 additions and 50 deletions
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115
play_group.py
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@ -6,10 +6,17 @@
# Creative Commons, 444 Castro Street, Suite 900, Mountain View,
# California, 94041, USA.
# This is a sample application that "plays" a voice tranmission
# from a datafile... it is really proof of concept for now.
# 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
# PROOF OF CONCEPT ONLY - GUARANTEED TO NOT WORK AS IS!!!
from __future__ import print_function
from twisted.internet import reactor
@ -40,9 +47,12 @@ BURST_DATA_TYPE = {
# 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 = False
# groups that we want to trigger playback of this file (ts1 and ts2)
trigger_groups_1 = ['\x00\x00\x02', '\x00\x00\x03']
trigger_groups_2 = ['\x00\x00\x02', '\x00\x00\x03']
trigger_groups_1 = ['\x00\x00\x01', '\x00\x00\x0D', '\x00\x00\x64']
trigger_groups_2 = ['\x00\xC0\x30',]
class playIPSC(IPSC):
@ -57,56 +67,61 @@ class playIPSC(IPSC):
#
def group_voice(self, _network, _src_sub, _dst_group, _ts, _end, _peerid, _data):
if _end:
print('timeslot: ', _ts)
if (_ts == 0 and _dst_group in trigger_groups_1) or (_ts == 1 and _dst_group in trigger_groups_2) :
logger.info('(Event ID: %s) Playback triggered from TS %s, TGID %s', self.event_id, (_ts +1), int_id(_dst_group))
if trigger = True:
if (_ts == 0 and _dst_group not in trigger_groups_1) or (_ts == 1 and _dst_group not in trigger_groups_2):
return
else:
if (_ts == 0 and _dst_group in trigger_groups_1) or (_ts == 1 and _dst_group in trigger_groups_2):
return
logger.info('(Event ID: %s) Playback triggered from TS %s, TGID %s', self.event_id, (_ts +1), int_id(_dst_group))
# Determine the type of voice packet this is (see top of file for possible types)
_burst_data_type = _data[30]
# 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'))
logger.info('(Event ID: %s) Playing back file: %s', self.event_id, filename)
time.sleep(2)
self.CALL_DATA = pickle.load(open(filename, 'rb'))
logger.info('(Event ID: %s) Playing back file: %s', self.event_id, filename)
_self_peer = NETWORK[_network]['LOCAL']['RADIO_ID']
_self_src = _self_peer[1:]
for i in self.CALL_DATA:
_tmp_data = i
_self_peer = NETWORK[_network]['LOCAL']['RADIO_ID']
_self_src = _self_peer[1:]
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 == 0:
_call_info &= ~(1 << 5)
elif _ts == 1:
_call_info |= 1 << 5
_call_info = chr(_call_info)
_tmp_data = _tmp_data[:17] + _call_info + _tmp_data[18:]
# 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])
# 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 == 0:
_call_info &= ~(1 << 5)
_burst_data_type = BURST_DATA_TYPE['SLOT1_VOICE']
elif _ts == 1:
_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 == 0:
_burst_data_type = BURST_DATA_TYPE['SLOT1_VOICE']
elif _ts == 1:
_burst_data_type = BURST_DATA_TYPE['SLOT2_VOICE']
_tmp_data = _tmp_data[:30] + _burst_data_type + _tmp_data[31:]
_tmp_data = self.hashed_packet(NETWORK[_network]['LOCAL']['AUTH_KEY'], _tmp_data)
# Send the packet to all peers in the target IPSC
self.send_to_ipsc(_tmp_data)
time.sleep(0.06)
self.CALL_DATA = []
logger.info('(Event ID: %s) Playback Completed', self.event_id)
self.event_id = self.event_id + 1
_burst_data_type = BURST_DATA_TYPE['SLOT2_VOICE']
_tmp_data = _tmp_data[:30] + _burst_data_type + _tmp_data[31:]
_tmp_data = self.hashed_packet(NETWORK[_network]['LOCAL']['AUTH_KEY'], _tmp_data)
# Send the packet to all peers in the target IPSC
self.send_to_ipsc(_tmp_data)
time.sleep(0.06)
self.CALL_DATA = []
logger.info('(Event ID: %s) Playback Completed', self.event_id)
self.event_id = self.event_id + 1
if __name__ == '__main__':
logger.info('DMRlink \'record.py\' (c) 2014 N0MJS & the K0USY Group - SYSTEM STARTING...')