Mercurial > hg > audiostuff
annotate spandsp-0.0.6pre17/src/modem_connect_tones.c @ 6:22a74b01a099 default tip
implement more meaningful test program
author | Peter Meerwald <pmeerw@cosy.sbg.ac.at> |
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date | Fri, 25 Jun 2010 16:14:50 +0200 |
parents | 26cd8f1ef0b1 |
children |
rev | line source |
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4
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
1 /* |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
2 * SpanDSP - a series of DSP components for telephony |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
3 * |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
4 * modem_connect_tones.c - Generation and detection of tones |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
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5 * associated with modems calling and answering calls. |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
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6 * |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
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7 * Written by Steve Underwood <steveu@coppice.org> |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
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8 * |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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9 * Copyright (C) 2006 Steve Underwood |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
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10 * |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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11 * All rights reserved. |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
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12 * |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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13 * This program is free software; you can redistribute it and/or modify |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
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14 * it under the terms of the GNU Lesser General Public License version 2.1, |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
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15 * as published by the Free Software Foundation. |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
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16 * |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
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|
17 * This program is distributed in the hope that it will be useful, |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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18 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
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19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
20 * GNU Lesser General Public License for more details. |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
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21 * |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
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22 * You should have received a copy of the GNU Lesser General Public |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
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23 * License along with this program; if not, write to the Free Software |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
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24 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
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25 * |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
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26 * $Id: modem_connect_tones.c,v 1.41 2009/11/06 19:21:33 steveu Exp $ |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
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27 */ |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
28 |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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29 /*! \file */ |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
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30 |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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changeset
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31 /* CNG is 0.5s+-15% of 1100+-38Hz, 3s+-15% off, repeating. |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
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32 |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
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33 CED is 0.2s silence, 3.3+-0.7s of 2100+-15Hz, and 75+-20ms of silence. |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
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34 |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
35 ANS is 3.3+-0.7s of 2100+-15Hz. |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
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36 |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
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37 ANS/ is 3.3+-0.7s of 2100+-15Hz, with phase reversals (180+-10 degrees, hopping in <1ms) every 450+-25ms. |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
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38 |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
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39 ANSam/ is 2100+-1Hz, with phase reversals (180+-10 degrees, hopping in <1ms) every 450+-25ms, and AM with a sinewave of 15+-0.1Hz. |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
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40 The modulated envelope ranges in amplitude between (0.8+-0.01) and (1.2+-0.01) times its average |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
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41 amplitude. It lasts up to 5s, but will be stopped early if the V.8 protocol proceeds. */ |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
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42 |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
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43 #if defined(HAVE_CONFIG_H) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
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44 #include "config.h" |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
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45 #endif |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
46 |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
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47 #include <inttypes.h> |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
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48 #include <stdlib.h> |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
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49 #include <memory.h> |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
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50 #if defined(HAVE_TGMATH_H) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
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51 #include <tgmath.h> |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
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52 #endif |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
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53 #if defined(HAVE_MATH_H) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
54 #include <math.h> |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
55 #endif |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
56 #include "floating_fudge.h" |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
57 #include <stdio.h> |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
58 |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
59 #include "spandsp/telephony.h" |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
60 #include "spandsp/fast_convert.h" |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
61 #include "spandsp/logging.h" |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
62 #include "spandsp/complex.h" |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
63 #include "spandsp/dds.h" |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
64 #include "spandsp/tone_detect.h" |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
65 #include "spandsp/tone_generate.h" |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
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66 #include "spandsp/super_tone_rx.h" |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
67 #include "spandsp/power_meter.h" |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
68 #include "spandsp/async.h" |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
69 #include "spandsp/fsk.h" |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
70 #include "spandsp/modem_connect_tones.h" |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
71 |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
72 #include "spandsp/private/fsk.h" |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
73 #include "spandsp/private/modem_connect_tones.h" |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
74 |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
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75 #define HDLC_FRAMING_OK_THRESHOLD 5 |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
76 |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
77 SPAN_DECLARE(const char *) modem_connect_tone_to_str(int tone) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
78 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
79 switch (tone) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
80 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
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81 case MODEM_CONNECT_TONES_NONE: |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
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82 return "No tone"; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
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83 case MODEM_CONNECT_TONES_FAX_CNG: |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
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84 return "FAX CNG"; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
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85 case MODEM_CONNECT_TONES_ANS: |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
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86 return "ANS or FAX CED"; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
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87 case MODEM_CONNECT_TONES_ANS_PR: |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
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88 return "ANS/"; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
89 case MODEM_CONNECT_TONES_ANSAM: |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
90 return "ANSam"; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
91 case MODEM_CONNECT_TONES_ANSAM_PR: |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
92 return "ANSam/"; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
93 case MODEM_CONNECT_TONES_FAX_PREAMBLE: |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
94 return "FAX preamble"; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
95 case MODEM_CONNECT_TONES_FAX_CED_OR_PREAMBLE: |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
96 return "FAX CED or preamble"; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
97 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
98 return "???"; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
99 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
100 /*- End of function --------------------------------------------------------*/ |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
101 |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
102 SPAN_DECLARE_NONSTD(int) modem_connect_tones_tx(modem_connect_tones_tx_state_t *s, |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
103 int16_t amp[], |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
104 int len) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
105 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
106 int16_t mod; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
107 int i; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
108 int xlen; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
109 |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
110 i = 0; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
111 switch (s->tone_type) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
112 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
113 case MODEM_CONNECT_TONES_FAX_CNG: |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
114 for ( ; i < len; i++) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
115 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
116 if (s->duration_timer > ms_to_samples(3000)) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
117 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
118 if ((xlen = i + s->duration_timer - ms_to_samples(3000)) > len) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
119 xlen = len; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
120 s->duration_timer -= (xlen - i); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
121 for ( ; i < xlen; i++) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
122 amp[i] = dds_mod(&s->tone_phase, s->tone_phase_rate, s->level, 0); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
123 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
124 if (s->duration_timer > 0) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
125 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
126 if ((xlen = i + s->duration_timer) > len) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
127 xlen = len; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
128 s->duration_timer -= (xlen - i); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
129 memset(amp + i, 0, sizeof(int16_t)*(xlen - i)); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
130 i = xlen; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
131 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
132 if (s->duration_timer == 0) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
133 s->duration_timer = ms_to_samples(500 + 3000); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
134 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
135 break; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
136 case MODEM_CONNECT_TONES_ANS: |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
137 if (s->duration_timer < len) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
138 len = s->duration_timer; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
139 if (s->duration_timer > ms_to_samples(2600)) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
140 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
141 /* There is some initial silence to be generated. */ |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
142 if ((i = s->duration_timer - ms_to_samples(2600)) > len) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
143 i = len; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
144 memset(amp, 0, sizeof(int16_t)*i); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
145 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
146 for ( ; i < len; i++) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
147 amp[i] = dds_mod(&s->tone_phase, s->tone_phase_rate, s->level, 0); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
148 s->duration_timer -= len; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
149 break; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
150 case MODEM_CONNECT_TONES_ANS_PR: |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
151 if (s->duration_timer < len) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
152 len = s->duration_timer; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
153 if (s->duration_timer > ms_to_samples(3300)) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
154 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
155 if ((i = s->duration_timer - ms_to_samples(3300)) > len) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
156 i = len; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
157 memset(amp, 0, sizeof(int16_t)*i); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
158 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
159 for ( ; i < len; i++) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
160 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
161 if (--s->hop_timer <= 0) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
162 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
163 s->hop_timer = ms_to_samples(450); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
164 s->tone_phase += 0x80000000; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
165 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
166 amp[i] = dds_mod(&s->tone_phase, s->tone_phase_rate, s->level, 0); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
167 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
168 s->duration_timer -= len; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
169 break; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
170 case MODEM_CONNECT_TONES_ANSAM: |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
171 if (s->duration_timer < len) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
172 len = s->duration_timer; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
173 if (s->duration_timer > ms_to_samples(5000)) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
174 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
175 if ((i = s->duration_timer - ms_to_samples(5000)) > len) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
176 i = len; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
177 memset(amp, 0, sizeof(int16_t)*i); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
178 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
179 for ( ; i < len; i++) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
180 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
181 mod = (int16_t) (s->level + dds_mod(&s->mod_phase, s->mod_phase_rate, s->mod_level, 0)); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
182 amp[i] = dds_mod(&s->tone_phase, s->tone_phase_rate, mod, 0); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
183 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
184 s->duration_timer -= len; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
185 break; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
186 case MODEM_CONNECT_TONES_ANSAM_PR: |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
187 if (s->duration_timer < len) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
188 len = s->duration_timer; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
189 if (s->duration_timer > ms_to_samples(5000)) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
190 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
191 if ((i = s->duration_timer - ms_to_samples(5000)) > len) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
192 i = len; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
193 memset(amp, 0, sizeof(int16_t)*i); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
194 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
195 for ( ; i < len; i++) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
196 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
197 if (--s->hop_timer <= 0) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
198 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
199 s->hop_timer = ms_to_samples(450); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
200 s->tone_phase += 0x80000000; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
201 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
202 mod = (int16_t) (s->level + dds_mod(&s->mod_phase, s->mod_phase_rate, s->mod_level, 0)); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
203 amp[i] = dds_mod(&s->tone_phase, s->tone_phase_rate, mod, 0); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
204 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
205 s->duration_timer -= len; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
206 break; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
207 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
208 return len; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
209 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
210 /*- End of function --------------------------------------------------------*/ |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
211 |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
212 SPAN_DECLARE(modem_connect_tones_tx_state_t *) modem_connect_tones_tx_init(modem_connect_tones_tx_state_t *s, |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
213 int tone_type) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
214 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
215 int alloced; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
216 |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
217 alloced = FALSE; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
218 if (s == NULL) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
219 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
220 if ((s = (modem_connect_tones_tx_state_t *) malloc(sizeof(*s))) == NULL) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
221 return NULL; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
222 alloced = TRUE; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
223 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
224 s->tone_type = tone_type; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
225 switch (s->tone_type) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
226 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
227 case MODEM_CONNECT_TONES_FAX_CNG: |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
228 /* 0.5s of 1100Hz+-38Hz + 3.0s of silence repeating. Timing +-15% */ |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
229 s->tone_phase_rate = dds_phase_rate(1100.0); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
230 s->level = dds_scaling_dbm0(-11); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
231 s->duration_timer = ms_to_samples(500 + 3000); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
232 s->mod_phase_rate = 0; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
233 s->tone_phase = 0; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
234 s->mod_phase = 0; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
235 s->mod_level = 0; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
236 s->hop_timer = 0; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
237 break; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
238 case MODEM_CONNECT_TONES_ANS: |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
239 case MODEM_CONNECT_TONES_ANSAM: |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
240 /* 0.2s of silence, then 2.6s to 4s of 2100Hz+-15Hz tone, then 75ms of silence. */ |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
241 s->tone_phase_rate = dds_phase_rate(2100.0); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
242 s->level = dds_scaling_dbm0(-11); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
243 if (s->tone_type == MODEM_CONNECT_TONES_ANSAM) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
244 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
245 s->mod_phase_rate = dds_phase_rate(15.0); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
246 s->mod_level = s->level/5; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
247 s->duration_timer = ms_to_samples(200 + 5000); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
248 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
249 else |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
250 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
251 s->mod_phase_rate = 0; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
252 s->mod_level = 0; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
253 s->duration_timer = ms_to_samples(200 + 2600); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
254 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
255 s->tone_phase = 0; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
256 s->mod_phase = 0; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
257 s->hop_timer = 0; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
258 break; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
259 case MODEM_CONNECT_TONES_ANS_PR: |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
260 case MODEM_CONNECT_TONES_ANSAM_PR: |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
261 s->tone_phase_rate = dds_phase_rate(2100.0); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
262 s->level = dds_scaling_dbm0(-12); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
263 if (s->tone_type == MODEM_CONNECT_TONES_ANSAM_PR) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
264 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
265 s->mod_phase_rate = dds_phase_rate(15.0); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
266 s->mod_level = s->level/5; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
267 s->duration_timer = ms_to_samples(200 + 5000); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
268 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
269 else |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
270 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
271 s->mod_phase_rate = 0; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
272 s->mod_level = 0; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
273 s->duration_timer = ms_to_samples(200 + 3300); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
274 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
275 s->tone_phase = 0; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
276 s->mod_phase = 0; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
277 s->hop_timer = ms_to_samples(450); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
278 break; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
279 default: |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
280 if (alloced) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
281 free(s); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
282 return NULL; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
283 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
284 return s; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
285 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
286 /*- End of function --------------------------------------------------------*/ |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
287 |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
288 SPAN_DECLARE(int) modem_connect_tones_tx_release(modem_connect_tones_tx_state_t *s) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
289 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
290 return 0; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
291 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
292 /*- End of function --------------------------------------------------------*/ |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
293 |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
294 SPAN_DECLARE(int) modem_connect_tones_tx_free(modem_connect_tones_tx_state_t *s) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
295 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
296 free(s); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
297 return 0; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
298 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
299 /*- End of function --------------------------------------------------------*/ |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
300 |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
301 static void report_tone_state(modem_connect_tones_rx_state_t *s, int tone, int level) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
302 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
303 if (tone != s->tone_present) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
304 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
305 if (s->tone_callback) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
306 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
307 s->tone_callback(s->callback_data, tone, level, 0); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
308 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
309 else |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
310 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
311 if (tone != MODEM_CONNECT_TONES_NONE) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
312 s->hit = tone; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
313 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
314 s->tone_present = tone; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
315 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
316 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
317 /*- End of function --------------------------------------------------------*/ |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
318 |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
319 static void v21_put_bit(void *user_data, int bit) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
320 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
321 modem_connect_tones_rx_state_t *s; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
322 |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
323 s = (modem_connect_tones_rx_state_t *) user_data; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
324 if (bit < 0) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
325 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
326 /* Special conditions. */ |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
327 switch (bit) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
328 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
329 case SIG_STATUS_CARRIER_DOWN: |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
330 /* Only declare tone off, if we were the one to declare tone on. */ |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
331 if (s->tone_present == MODEM_CONNECT_TONES_FAX_PREAMBLE) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
332 report_tone_state(s, MODEM_CONNECT_TONES_NONE, -99); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
333 /* Fall through */ |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
334 case SIG_STATUS_CARRIER_UP: |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
335 s->raw_bit_stream = 0; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
336 s->num_bits = 0; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
337 s->flags_seen = 0; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
338 s->framing_ok_announced = FALSE; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
339 break; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
340 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
341 return; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
342 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
343 /* Look for enough FAX V.21 message preamble (back to back HDLC flag octets) to be sure |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
344 we are really seeing preamble, and declare the signal to be present. Any change from |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
345 preamble declares the signal to not be present, though it will probably be the body |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
346 of the messages following the preamble. */ |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
347 s->raw_bit_stream = (s->raw_bit_stream << 1) | ((bit << 8) & 0x100); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
348 s->num_bits++; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
349 if ((s->raw_bit_stream & 0x7F00) == 0x7E00) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
350 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
351 if ((s->raw_bit_stream & 0x8000)) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
352 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
353 /* Hit HDLC abort */ |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
354 s->flags_seen = 0; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
355 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
356 else |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
357 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
358 /* Hit HDLC flag */ |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
359 if (s->flags_seen < HDLC_FRAMING_OK_THRESHOLD) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
360 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
361 /* Check the flags are back-to-back when testing for valid preamble. This |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
362 greatly reduces the chances of false preamble detection, and anything |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
363 which doesn't send them back-to-back is badly broken. */ |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
364 if (s->num_bits != 8) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
365 s->flags_seen = 0; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
366 if (++s->flags_seen >= HDLC_FRAMING_OK_THRESHOLD && !s->framing_ok_announced) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
367 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
368 report_tone_state(s, MODEM_CONNECT_TONES_FAX_PREAMBLE, lfastrintf(fsk_rx_signal_power(&(s->v21rx)))); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
369 s->framing_ok_announced = TRUE; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
370 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
371 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
372 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
373 s->num_bits = 0; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
374 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
375 else |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
376 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
377 if (s->flags_seen >= HDLC_FRAMING_OK_THRESHOLD) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
378 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
379 if (s->num_bits == 8) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
380 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
381 s->framing_ok_announced = FALSE; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
382 s->flags_seen = 0; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
383 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
384 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
385 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
386 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
387 /*- End of function --------------------------------------------------------*/ |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
388 |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
389 SPAN_DECLARE_NONSTD(int) modem_connect_tones_rx(modem_connect_tones_rx_state_t *s, |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
390 const int16_t amp[], |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
391 int len) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
392 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
393 int i; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
394 int16_t notched; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
395 float v1; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
396 float famp; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
397 float filtered; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
398 |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
399 switch (s->tone_type) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
400 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
401 case MODEM_CONNECT_TONES_FAX_CNG: |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
402 for (i = 0; i < len; i++) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
403 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
404 famp = amp[i]; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
405 /* A Cauer notch at 1100Hz, spread just wide enough to meet our detection bandwidth |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
406 criteria. */ |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
407 v1 = 0.792928f*famp + 1.0018744927985f*s->znotch_1 - 0.54196833412465f*s->znotch_2; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
408 famp = v1 - 1.2994747954630f*s->znotch_1 + s->znotch_2; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
409 s->znotch_2 = s->znotch_1; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
410 s->znotch_1 = v1; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
411 notched = (int16_t) lfastrintf(famp); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
412 |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
413 /* Estimate the overall energy in the channel, and the energy in |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
414 the notch (i.e. overall channel energy - tone energy => noise). |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
415 Use abs instead of multiply for speed (is it really faster?). */ |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
416 s->channel_level += ((abs(amp[i]) - s->channel_level) >> 5); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
417 s->notch_level += ((abs(notched) - s->notch_level) >> 5); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
418 if (s->channel_level > 70 && s->notch_level*6 < s->channel_level) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
419 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
420 /* There is adequate energy in the channel, and it is mostly at 1100Hz. */ |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
421 if (s->tone_present != MODEM_CONNECT_TONES_FAX_CNG) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
422 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
423 if (++s->tone_cycle_duration >= ms_to_samples(415)) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
424 report_tone_state(s, MODEM_CONNECT_TONES_FAX_CNG, lfastrintf(log10f(s->channel_level/32768.0f)*20.0f + DBM0_MAX_POWER + 0.8f)); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
425 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
426 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
427 else |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
428 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
429 /* If the signal looks wrong, even for a moment, we consider this the |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
430 end of the tone. */ |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
431 if (s->tone_present == MODEM_CONNECT_TONES_FAX_CNG) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
432 report_tone_state(s, MODEM_CONNECT_TONES_NONE, -99); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
433 s->tone_cycle_duration = 0; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
434 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
435 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
436 break; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
437 case MODEM_CONNECT_TONES_FAX_PREAMBLE: |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
438 /* Ignore any CED tone, and just look for V.21 preamble. */ |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
439 fsk_rx(&(s->v21rx), amp, len); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
440 break; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
441 case MODEM_CONNECT_TONES_FAX_CED_OR_PREAMBLE: |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
442 /* Also look for V.21 preamble. A lot of machines don't send the 2100Hz burst. It |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
443 might also not be seen all the way through the channel, due to switching delays. */ |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
444 fsk_rx(&(s->v21rx), amp, len); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
445 /* Now fall through and look for a 2100Hz tone */ |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
446 case MODEM_CONNECT_TONES_ANS: |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
447 for (i = 0; i < len; i++) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
448 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
449 famp = amp[i]; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
450 /* A Cauer bandpass at 15Hz, with which we demodulate the AM signal. */ |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
451 v1 = fabs(famp) + 1.996667f*s->z15hz_1 - 0.9968004f*s->z15hz_2; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
452 filtered = 0.001599787f*(v1 - s->z15hz_2); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
453 s->z15hz_2 = s->z15hz_1; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
454 s->z15hz_1 = v1; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
455 s->am_level += abs(lfastrintf(filtered)) - (s->am_level >> 8); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
456 //printf("%9.1f %10.4f %9d %9d\n", famp, filtered, s->am_level, s->channel_level); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
457 /* A Cauer notch at 2100Hz, spread just wide enough to meet our detection bandwidth |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
458 criteria. */ |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
459 /* This is actually centred at 2095Hz, but gets the balance we want, due |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
460 to the asymmetric walls of the notch */ |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
461 v1 = 0.76000f*famp - 0.1183852f*s->znotch_1 - 0.5104039f*s->znotch_2; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
462 famp = v1 + 0.1567596f*s->znotch_1 + s->znotch_2; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
463 s->znotch_2 = s->znotch_1; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
464 s->znotch_1 = v1; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
465 notched = (int16_t) lfastrintf(famp); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
466 /* Estimate the overall energy in the channel, and the energy in |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
467 the notch (i.e. overall channel energy - tone energy => noise). |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
468 Use abs instead of multiply for speed (is it really faster?). |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
469 Damp the overall energy a little more for a stable result. |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
470 Damp the notch energy a little less, so we don't damp out the |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
471 blip every time the phase reverses. */ |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
472 s->channel_level += ((abs(amp[i]) - s->channel_level) >> 5); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
473 s->notch_level += ((abs(notched) - s->notch_level) >> 4); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
474 /* This should cut off at about -43dBm0 */ |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
475 if (s->channel_level <= 70) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
476 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
477 /* If the energy level is low, even for a moment, we consider this the |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
478 end of the tone. */ |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
479 if (s->tone_present != MODEM_CONNECT_TONES_NONE) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
480 report_tone_state(s, MODEM_CONNECT_TONES_NONE, -99); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
481 s->tone_cycle_duration = 0; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
482 s->good_cycles = 0; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
483 s->tone_on = FALSE; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
484 continue; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
485 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
486 /* There is adequate energy in the channel. Is it mostly at 2100Hz? */ |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
487 s->tone_cycle_duration++; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
488 if (s->notch_level*6 < s->channel_level) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
489 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
490 /* The notch test says yes, so we have the tone. */ |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
491 /* We should get a kick from the notch filter every 450+-25ms, as the phase reverses, for an |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
492 EC disable tone. For a simple answer tone, the tone should persist unbroken for longer. */ |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
493 if (!s->tone_on) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
494 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
495 if (s->tone_cycle_duration >= ms_to_samples(450 - 25)) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
496 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
497 if (++s->good_cycles == 3) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
498 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
499 report_tone_state(s, |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
500 (s->am_level*15/256 > s->channel_level) ? MODEM_CONNECT_TONES_ANSAM_PR : MODEM_CONNECT_TONES_ANS_PR, |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
501 lfastrintf(log10f(s->channel_level/32768.0f)*20.0f + DBM0_MAX_POWER + 0.8f)); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
502 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
503 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
504 else |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
505 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
506 s->good_cycles = 0; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
507 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
508 /* Cycles are timed from rising edge to rising edge */ |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
509 s->tone_cycle_duration = 0; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
510 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
511 else |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
512 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
513 if (s->tone_cycle_duration >= ms_to_samples(450 + 100)) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
514 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
515 if (s->tone_present == MODEM_CONNECT_TONES_NONE) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
516 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
517 report_tone_state(s, |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
518 (s->am_level*15/256 > s->channel_level) ? MODEM_CONNECT_TONES_ANSAM : MODEM_CONNECT_TONES_ANS, |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
519 lfastrintf(log10f(s->channel_level/32768.0f)*20.0f + DBM0_MAX_POWER + 0.8f)); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
520 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
521 s->good_cycles = 0; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
522 s->tone_cycle_duration = ms_to_samples(450 + 100); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
523 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
524 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
525 s->tone_on = TRUE; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
526 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
527 else if (s->notch_level*5 > s->channel_level) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
528 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
529 if (s->tone_present == MODEM_CONNECT_TONES_ANS) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
530 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
531 report_tone_state(s, MODEM_CONNECT_TONES_NONE, -99); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
532 s->good_cycles = 0; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
533 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
534 else |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
535 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
536 if (s->tone_cycle_duration >= ms_to_samples(450 + 25)) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
537 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
538 /* The change came too late for a cycle of ANS_PR tone */ |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
539 if (s->tone_present == MODEM_CONNECT_TONES_ANS_PR || s->tone_present == MODEM_CONNECT_TONES_ANSAM_PR) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
540 report_tone_state(s, MODEM_CONNECT_TONES_NONE, -99); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
541 s->good_cycles = 0; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
542 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
543 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
544 s->tone_on = FALSE; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
545 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
546 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
547 break; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
548 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
549 return 0; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
550 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
551 /*- End of function --------------------------------------------------------*/ |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
552 |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
553 SPAN_DECLARE(int) modem_connect_tones_rx_get(modem_connect_tones_rx_state_t *s) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
554 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
555 int x; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
556 |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
557 x = s->hit; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
558 s->hit = MODEM_CONNECT_TONES_NONE; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
559 return x; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
560 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
561 /*- End of function --------------------------------------------------------*/ |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
562 |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
563 SPAN_DECLARE(modem_connect_tones_rx_state_t *) modem_connect_tones_rx_init(modem_connect_tones_rx_state_t *s, |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
564 int tone_type, |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
565 tone_report_func_t tone_callback, |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
566 void *user_data) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
567 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
568 if (s == NULL) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
569 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
570 if ((s = (modem_connect_tones_rx_state_t *) malloc(sizeof(*s))) == NULL) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
571 return NULL; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
572 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
573 |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
574 s->tone_type = tone_type; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
575 switch (s->tone_type) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
576 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
577 case MODEM_CONNECT_TONES_FAX_PREAMBLE: |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
578 case MODEM_CONNECT_TONES_FAX_CED_OR_PREAMBLE: |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
579 fsk_rx_init(&(s->v21rx), &preset_fsk_specs[FSK_V21CH2], FSK_FRAME_MODE_SYNC, v21_put_bit, s); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
580 fsk_rx_signal_cutoff(&(s->v21rx), -45.5f); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
581 break; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
582 case MODEM_CONNECT_TONES_ANS_PR: |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
583 case MODEM_CONNECT_TONES_ANSAM: |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
584 case MODEM_CONNECT_TONES_ANSAM_PR: |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
585 /* Treat these all the same for receive purposes */ |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
586 s->tone_type = MODEM_CONNECT_TONES_ANS; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
587 break; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
588 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
589 s->channel_level = 0; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
590 s->notch_level = 0; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
591 s->am_level = 0; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
592 s->tone_present = MODEM_CONNECT_TONES_NONE; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
593 s->tone_cycle_duration = 0; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
594 s->good_cycles = 0; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
595 s->hit = MODEM_CONNECT_TONES_NONE; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
596 s->tone_on = FALSE; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
597 s->tone_callback = tone_callback; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
598 s->callback_data = user_data; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
599 s->znotch_1 = 0.0f; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
600 s->znotch_2 = 0.0f; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
601 s->z15hz_1 = 0.0f; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
602 s->z15hz_2 = 0.0f; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
603 s->num_bits = 0; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
604 s->flags_seen = 0; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
605 s->framing_ok_announced = FALSE; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
606 s->raw_bit_stream = 0; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
607 return s; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
608 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
609 /*- End of function --------------------------------------------------------*/ |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
610 |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
611 SPAN_DECLARE(int) modem_connect_tones_rx_release(modem_connect_tones_rx_state_t *s) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
612 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
613 return 0; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
614 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
615 /*- End of function --------------------------------------------------------*/ |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
616 |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
617 SPAN_DECLARE(int) modem_connect_tones_rx_free(modem_connect_tones_rx_state_t *s) |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
618 { |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
619 free(s); |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
620 return 0; |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
621 } |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
622 /*- End of function --------------------------------------------------------*/ |
26cd8f1ef0b1
import spandsp-0.0.6pre17
Peter Meerwald <pmeerw@cosy.sbg.ac.at>
parents:
diff
changeset
|
623 /*- End of file ------------------------------------------------------------*/ |