private/tone_generate.h
/*
* SpanDSP - a series of DSP components for telephony
*
* private/tone_generate.h - General telephony tone generation.
*
* Written by Steve Underwood <steveu@coppice.org>
*
* Copyright (C) 2001 Steve Underwood
*
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 2.1,
* 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#if !defined(_SPANDSP_PRIVATE_TONE_GENERATE_H_)
#define _SPANDSP_PRIVATE_TONE_GENERATE_H_
struct tone_gen_tone_descriptor_s
{
int32_t phase_rate;
#if defined(SPANDSP_USE_FIXED_POINT)
int16_t gain;
#else
float gain;
#endif
};
/*!
Cadenced multi-tone generator descriptor.
*/
struct tone_gen_descriptor_s
{
tone_gen_tone_descriptor_t tone[4];
int duration[4];
int repeat;
};
/*!
Cadenced multi-tone generator state descriptor. This defines the state of
a single working instance of a generator.
*/
struct tone_gen_state_s
{
tone_gen_tone_descriptor_t tone[4];
uint32_t phase[4];
int duration[4];
int repeat;
int current_section;
int current_position;
};
#endif
/*- End of file ------------------------------------------------------------*/
tone_gen_descriptor_s
Definition private/tone_generate.h:43
tone_gen_state_s
Definition private/tone_generate.h:54
tone_gen_tone_descriptor_s
Definition private/tone_generate.h:30