From b9b21ebebf212c6ffc03de2ffaa0be2b2c12889f Mon Sep 17 00:00:00 2001
From: Cort Buffington <n0mjs@me.com>
Date: Tue, 24 Mar 2015 11:06:42 -0500
Subject: [PATCH] Begin AMBE Data Dump

---
 ambe_audio.py              | 61 ++++++++++++++++++++++++++++++++++++++
 dmrlink.py                 | 10 +++++--
 ipsc/ipsc_message_types.py |  2 +-
 3 files changed, 69 insertions(+), 4 deletions(-)
 create mode 100755 ambe_audio.py

diff --git a/ambe_audio.py b/ambe_audio.py
new file mode 100755
index 0000000..8afaa51
--- /dev/null
+++ b/ambe_audio.py
@@ -0,0 +1,61 @@
+#!/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
+
+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; Dave K; and he who wishes not to be named'
+__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]
+        if _payload_type == BURST_DATA_TYPE['SLOT1_VOICE']:
+            print('SLOT 1 Voice Burst Data Recieved')
+        if _payload_type == BURST_DATA_TYPE['SLOT2_VOICE']:
+            print('SLOT 2 Voice Burst Data Recieved')
+
+        
+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()
diff --git a/dmrlink.py b/dmrlink.py
index 0770c32..0e88584 100755
--- a/dmrlink.py
+++ b/dmrlink.py
@@ -36,7 +36,7 @@ from twisted.internet import reactor
 from twisted.internet import task
 
 __author__ = 'Cortney T. Buffington, N0MJS'
-__copyright__ = 'Copyright (c) 2013, 2014 Cortney T. Buffington, N0MJS and the K0USY Group'
+__copyright__ = 'Copyright (c) 2013 - 2015 Cortney T. Buffington, N0MJS and the K0USY Group'
 __credits__ = 'Adam Fast, KC0YLK, Dave K, and he who wishes not to be named'
 __license__ = 'Creative Commons Attribution-ShareAlike 3.0 Unported'
 __version__ = '0.27b'
@@ -1126,7 +1126,7 @@ class IPSC(DatagramProtocol):
                 _ts         = bool(_call_info & TS_CALL_MSK)
                 _end        = bool(_call_info & END_MSK)
                 
-                # Extract RTP header fields
+                # Extract RTP Header Fields
                 '''
                 Coming soon kids!!!
                 Looks like version, padding, extention, CSIC, payload type and SSID never change.
@@ -1135,6 +1135,10 @@ class IPSC(DatagramProtocol):
                 _rtp_byte_2 = int_id(data[19:20])
                 _rtp_seq    = int_id(data[20:22])
                 _rtp_tmstmp = int_id(data[22:26])
+                _rtp_ssid = int_id(data[26:30])
+                
+                # Extract RTP Payload Data Fields
+                _payload_type = int_id(data[30:31])
                 '''
 
                 # User Voice and Data Call Types:
@@ -1281,7 +1285,7 @@ class IPSC(DatagramProtocol):
 #************************************************
 
 if __name__ == '__main__':
-    logger.info('DMRlink \'dmrlink.py\' (c) 2013, 2014 N0MJS & the K0USY Group - SYSTEM STARTING...')
+    logger.info('DMRlink \'dmrlink.py\' (c) 2013 - 2015 N0MJS & the K0USY Group - SYSTEM STARTING...')
     
     networks = {}
     for ipsc_network in NETWORK:
diff --git a/ipsc/ipsc_message_types.py b/ipsc/ipsc_message_types.py
index 086a20a..18ba055 100644
--- a/ipsc/ipsc_message_types.py
+++ b/ipsc/ipsc_message_types.py
@@ -1,4 +1,4 @@
-# Copyright (c) 2013, 2014 Cortney T. Buffington, N0MJS and the K0USY Group. n0mjs@me.com
+# Copyright (c) 2013 - 2015 Cortney T. Buffington, N0MJS and the K0USY Group. n0mjs@me.com
 #
 # This work is licensed under the Creative Commons Attribution-ShareAlike
 # 3.0 Unported License.To view a copy of this license, visit