162 lines
5.0 KiB
C
162 lines
5.0 KiB
C
/*
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* libteletone
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* Copyright (C) 2005-2014, Anthony Minessale II <anthm@freeswitch.org>
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*
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* Version: MPL 1.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is libteletone
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*
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* The Initial Developer of the Original Code is
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* Anthony Minessale II <anthm@freeswitch.org>
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* Portions created by the Initial Developer are Copyright (C)
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Anthony Minessale II <anthm@freeswitch.org>
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*
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*
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* libteletone.h -- Tone Generator/Detector
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*
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*
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*
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* Exception:
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* The author hereby grants the use of this source code under the
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* following license if and only if the source code is distributed
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* as part of the OpenZAP or FreeTDM library. Any use or distribution of this
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* source code outside the scope of the OpenZAP or FreeTDM library will nullify the
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* following license and reinact the MPL 1.1 as stated above.
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*
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* Copyright (c) 2007, Anthony Minessale II
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* * Neither the name of the original author; nor the names of any contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
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* OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef LIBTELETONE_H
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#define LIBTELETONE_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <math.h>
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#define TELETONE_MAX_DTMF_DIGITS 128
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#define TELETONE_MAX_TONES 18
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#define TELETONE_TONE_RANGE 127
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typedef double teletone_process_t;
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/*! \file libteletone.h
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\brief Top level include file
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This file should be included by applications using the library
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*/
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/*! \brief An abstraction to store a tone mapping */
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typedef struct {
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/*! An array of tone frequencies */
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teletone_process_t freqs[TELETONE_MAX_TONES];
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} teletone_tone_map_t;
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#if !defined(M_PI)
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/* C99 systems may not define M_PI */
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#define M_PI 3.14159265358979323846264338327
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#endif
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#ifdef _MSC_VER
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typedef __int16 int16_t;
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#endif
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#if (_MSC_VER >= 1400) // VC8+
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#define teletone_assert(expr) assert(expr);__analysis_assume( expr )
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#else
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#define teletone_assert(expr) assert(expr)
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#endif
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#ifdef _MSC_VER
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#if defined(TT_DECLARE_STATIC)
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#define TELETONE_API(type) type __stdcall
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#define TELETONE_API_NONSTD(type) type __cdecl
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#define TELETONE_API_DATA
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#elif defined(TELETONE_EXPORTS)
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#define TELETONE_API(type) __declspec(dllexport) type __stdcall
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#define TELETONE_API_NONSTD(type) __declspec(dllexport) type __cdecl
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#define TELETONE_API_DATA __declspec(dllexport)
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#else
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#define TELETONE_API(type) __declspec(dllimport) type __stdcall
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#define TELETONE_API_NONSTD(type) __declspec(dllimport) type __cdecl
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#define TELETONE_API_DATA __declspec(dllimport)
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#endif
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#else
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#if (defined(__GNUC__) || defined(__SUNPRO_CC) || defined (__SUNPRO_C)) && defined(HAVE_VISIBILITY)
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#define TELETONE_API(type) __attribute__((visibility("default"))) type
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#define TELETONE_API_NONSTD(type) __attribute__((visibility("default"))) type
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#define TELETONE_API_DATA __attribute__((visibility("default")))
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#else
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#define TELETONE_API(type) type
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#define TELETONE_API_NONSTD(type) type
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#define TELETONE_API_DATA
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#endif
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#endif
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#include <libteletone_generate.h>
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#include <libteletone_detect.h>
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#ifdef HAVE_STRING_H
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#include <string.h>
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif
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/* For Emacs:
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* Local Variables:
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* mode:c
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* indent-tabs-mode:t
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* tab-width:4
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* c-basic-offset:4
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* End:
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* For VIM:
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* vim:set softtabstop=4 shiftwidth=4 tabstop=4 noet:
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*/
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