forked from KD8EYF/DMRlink
/
ambe_audio.py
executable file
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/
ambe_audio.py
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#!/usr/bin/env python
#
# This work is licensed under the Creative Commons Attribution-ShareAlike
# 3.0 Unported License.To view a copy of this license, visit
# http://creativecommons.org/licenses/by-sa/3.0/ or send a letter to
# Creative Commons, 444 Castro Street, Suite 900, Mountain View,
# California, 94041, USA.
# This is a sample applicaiton that dumps all raw AMBE+2 voice frame data
# It is useful for things like, decoding the audio stream with a DVSI dongle, etc.
from __future__ import print_function
from twisted.internet import reactor
from binascii import b2a_hex as h
from bitstring import BitArray
import sys
import cPickle as pickle
from dmrlink import IPSC, NETWORK, networks, logger, int_id, hex_str_3
__author__ = 'Cortney T. Buffington, N0MJS'
__copyright__ = 'Copyright (c) 2015 Cortney T. Buffington, N0MJS and the K0USY Group'
__credits__ = 'Adam Fast, KC0YLK; Robert Garcia, N5QM'
__license__ = 'Creative Commons Attribution-ShareAlike 3.0 Unported'
__maintainer__ = 'Cort Buffington, N0MJS'
__version__ = '0.1a'
__email__ = 'n0mjs@me.com'
__status__ = 'pre-alpha'
try:
from ipsc.ipsc_message_types import *
except ImportError:
sys.exit('IPSC message types file not found or invalid')
class ambeIPSC(IPSC):
def __init__(self, *args, **kwargs):
IPSC.__init__(self, *args, **kwargs)
self.CALL_DATA = []
#************************************************
# CALLBACK FUNCTIONS FOR USER PACKET TYPES
#************************************************
#
def group_voice(self, _network, _src_sub, _dst_sub, _ts, _end, _peerid, _data):
# THIS FUNCTION IS NOT COMPLETE!!!!
_payload_type = _data[30:31]
# _ambe_frames = _data[33:52]
_ambe_frames = BitArray('0x'+h(_data[33:52]))
_ambe_frame1 = _ambe_frames[0:49]
_ambe_frame2 = _ambe_frames[50:99]
_ambe_frame3 = _ambe_frames[100:149]
if _payload_type == BURST_DATA_TYPE['VOICE_HEAD']:
print('Voice Transmission Start')
if _payload_type == BURST_DATA_TYPE['VOICE_TERM']:
print('Voice Transmission End')
if _payload_type == BURST_DATA_TYPE['SLOT1_VOICE']:
print(_ambe_frames)
print('Frame 1:', _ambe_frame1.bytes)
print('Frame 2:', _ambe_frame2.bytes)
print('Frame 3:', _ambe_frame3.bytes)
if _payload_type == BURST_DATA_TYPE['SLOT2_VOICE']:
print(_ambe_frames)
print('Frame 1:', _ambe_frame1.bytes)
print('Frame 2:', _ambe_frame2.bytes)
print('Frame 3:', _ambe_frame3.bytes)
if __name__ == '__main__':
logger.info('DMRlink \'ambe_audio.py\' (c) 2015 N0MJS & the K0USY Group - SYSTEM STARTING...')
for ipsc_network in NETWORK:
if NETWORK[ipsc_network]['LOCAL']['ENABLED']:
networks[ipsc_network] = ambeIPSC(ipsc_network)
reactor.listenUDP(NETWORK[ipsc_network]['LOCAL']['PORT'], networks[ipsc_network], interface=NETWORK[ipsc_network]['LOCAL']['IP'])
reactor.run()