spandsp
0.0.6
swept_tone.h
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/*
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* SpanDSP - a series of DSP components for telephony
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*
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* swept_tone.h - Swept tone generation
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*
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* Written by Steve Underwood <steveu@coppice.org>
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*
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* Copyright (C) 2009 Steve Underwood
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*
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* All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 2.1,
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* as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/*! \file */
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#if !defined(_SPANDSP_SWEPT_TONE_H_)
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#define _SPANDSP_SWEPT_TONE_H_
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/*! \page swept_tone_page The swept tone generator
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\section swept_tone_page_sec_1 What does it do?
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*/
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typedef
struct
swept_tone_state_s
swept_tone_state_t
;
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#if defined(__cplusplus)
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extern
"C"
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{
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#endif
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SPAN_DECLARE(
swept_tone_state_t
*) swept_tone_init(
swept_tone_state_t
*s,
float
start,
float
end,
float
level,
int
duration,
int
repeating);
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SPAN_DECLARE(
int
) swept_tone(
swept_tone_state_t
*s, int16_t amp[],
int
len);
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SPAN_DECLARE(
float
) swept_tone_current_frequency(
swept_tone_state_t
*s);
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SPAN_DECLARE(
int
) swept_tone_release(
swept_tone_state_t
*s);
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SPAN_DECLARE(
int
) swept_tone_free(
swept_tone_state_t
*s);
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#if defined(__cplusplus)
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}
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#endif
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#endif
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/*- End of file ------------------------------------------------------------*/
swept_tone_state_s
Definition:
private/swept_tone.h:30
src
spandsp
swept_tone.h
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