freeswitch/libs/spandsp/tests/line_model_monitor.h

63 lines
2.2 KiB
C

/*
* SpanDSP - a series of DSP components for telephony
*
* line_model_monitor.h - Model activity in a telephone line model, using the FLTK toolkit.
*
* Written by Steve Underwood <steveu@coppice.org>
*
* Copyright (C) 2004 Steve Underwood
*
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2, as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* $Id: line_model_monitor.h,v 1.7 2008/04/26 13:39:17 steveu Exp $
*/
/*! \page line_model_monitor_page Telephone line model monitoring
\section line_model_monitor_page_sec_1 What does it do?
This code controls a GUI window, which provides monitoring of the internal status
of a telephone line modem. It shows, graphically:
- the spectrum of the received signal.
- the line model in use (when a known line model is being used).
- the adapted coefficients of the canceller.
\section line_model_monitor_page_sec_2 How does it work?
This code uses the FLTK cross platform GUI toolkit. It works on X11 and Windows platforms.
In addition to the basic FLTK toolkit, fltk_cartesian is also required.
*/
#if !defined(_LINE_MODEL_MONITOR_H_)
#define _LINE_MODEL_MONITOR_H_
#if defined(__cplusplus)
extern "C"
{
#endif
int start_line_model_monitor(int len);
int line_model_monitor_can_update(const float *coeffs, int len);
int line_model_monitor_line_model_update(const float *coeffs, int len);
int line_model_monitor_line_spectrum_update(const int16_t amp[], int len);
void line_model_monitor_wait_to_end(void);
void line_model_monitor_update_display(void);
#if defined(__cplusplus)
}
#endif
#endif
/*- End of file ------------------------------------------------------------*/