spandsp 0.0.6
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00001 /* 00002 * SpanDSP - a series of DSP components for telephony 00003 * 00004 * private/swept_tone.h - Swept tone generation 00005 * 00006 * Written by Steve Underwood <steveu@coppice.org> 00007 * 00008 * Copyright (C) 2009 Steve Underwood 00009 * 00010 * All rights reserved. 00011 * 00012 * This program is free software; you can redistribute it and/or modify 00013 * it under the terms of the GNU General Public License version 2, as 00014 * published by the Free Software Foundation. 00015 * 00016 * This program is distributed in the hope that it will be useful, 00017 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00018 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00019 * GNU General Public License for more details. 00020 * 00021 * You should have received a copy of the GNU General Public License 00022 * along with this program; if not, write to the Free Software 00023 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 00024 * 00025 * $Id: swept_tone.h,v 1.1 2009/09/22 12:54:33 steveu Exp $ 00026 */ 00027 00028 #if !defined(_SPANDSP_PRIVATE_SWEPT_TONE_H_) 00029 #define _SPANDSP_PRIVATE_SWEPT_TONE_H_ 00030 00031 struct swept_tone_state_s 00032 { 00033 int32_t starting_phase_inc; 00034 int32_t phase_inc_step; 00035 int scale; 00036 int duration; 00037 int repeating; 00038 int pos; 00039 int32_t current_phase_inc; 00040 uint32_t phase; 00041 }; 00042 00043 #endif 00044 /*- End of file ------------------------------------------------------------*/