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1 /*
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2 * SpanDSP - a series of DSP components for telephony
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3 *
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4 * line_model_monitor.h - Model activity in a telephone line model, using the FLTK toolkit.
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5 *
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6 * Written by Steve Underwood <steveu@coppice.org>
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7 *
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8 * Copyright (C) 2004 Steve Underwood
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9 *
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10 * All rights reserved.
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11 *
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12 * This program is free software; you can redistribute it and/or modify
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13 * it under the terms of the GNU General Public License version 2, as
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14 * published by the Free Software Foundation.
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15 *
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16 * This program is distributed in the hope that it will be useful,
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17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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19 * GNU General Public License for more details.
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20 *
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21 * You should have received a copy of the GNU General Public License
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22 * along with this program; if not, write to the Free Software
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23 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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24 *
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25 * $Id: line_model_monitor.h,v 1.2 2006/10/24 13:22:03 steveu Exp $
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26 */
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27
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28 /*! \page line_model_monitor_page Telephone line model monitoring
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29 \section line_model_monitor_page_sec_1 What does it do?
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30 This code controls a GUI window, which provides monitoring of the internal status
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31 of a telephone line modem. It shows, graphically:
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32
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33 - the spectrum of the received signal.
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34 - the line model in use (when a known line model is being used).
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35 - the adapted coefficients of the canceller.
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36
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37 \section line_model_monitor_page_sec_2 How does it work?
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38 This code uses the FLTK cross platform GUI toolkit. It works on X11 and Windows platforms.
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39 In addition to the basic FLTK toolkit, fltk_cartesian is also required.
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40 */
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41
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42 #if !defined(_LINE_MODEL_MONITOR_H_)
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43 #define _LINE_MODEL_MONITOR_H_
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44
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45 #ifdef __cplusplus
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46 extern "C" {
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47 #endif
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48
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49 int start_line_model_monitor(int len);
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50 int line_model_monitor_can_update(const float *coeffs, int len);
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51 int line_model_monitor_line_model_update(const float *coeffs, int len);
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52 int line_model_monitor_line_spectrum_update(const int16_t amp[], int len);
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53 void line_model_monitor_wait_to_end(void);
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54 void line_model_monitor_update_display(void);
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55
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56 #ifdef __cplusplus
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57 }
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58 #endif
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59
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60 #endif
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61 /*- End of file ------------------------------------------------------------*/
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