Mercurial > hg > audiostuff
comparison spandsp-0.0.6pre17/src/spandsp/private/super_tone_tx.h @ 4:26cd8f1ef0b1
import spandsp-0.0.6pre17
author | Peter Meerwald <pmeerw@cosy.sbg.ac.at> |
---|---|
date | Fri, 25 Jun 2010 15:50:58 +0200 |
parents | |
children |
comparison
equal
deleted
inserted
replaced
3:c6c5a16ce2f2 | 4:26cd8f1ef0b1 |
---|---|
1 /* | |
2 * SpanDSP - a series of DSP components for telephony | |
3 * | |
4 * private/super_tone_tx.h - Flexible telephony supervisory tone generation. | |
5 * | |
6 * Written by Steve Underwood <steveu@coppice.org> | |
7 * | |
8 * Copyright (C) 2001 Steve Underwood | |
9 * | |
10 * All rights reserved. | |
11 * | |
12 * This program is free software; you can redistribute it and/or modify | |
13 * it under the terms of the GNU Lesser General Public License version 2.1, | |
14 * as published by the Free Software Foundation. | |
15 * | |
16 * This program is distributed in the hope that it will be useful, | |
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 * GNU Lesser General Public License for more details. | |
20 * | |
21 * You should have received a copy of the GNU Lesser General Public | |
22 * License along with this program; if not, write to the Free Software | |
23 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
24 * | |
25 * $Id: super_tone_tx.h,v 1.1 2008/11/30 10:22:19 steveu Exp $ | |
26 */ | |
27 | |
28 #if !defined(_SPANDSP_PRIVATE_SUPER_TONE_TX_H_) | |
29 #define _SPANDSP_PRIVATE_SUPER_TONE_TX_H_ | |
30 | |
31 struct super_tone_tx_step_s | |
32 { | |
33 tone_gen_tone_descriptor_t tone[4]; | |
34 int tone_on; | |
35 int length; | |
36 int cycles; | |
37 super_tone_tx_step_t *next; | |
38 super_tone_tx_step_t *nest; | |
39 }; | |
40 | |
41 struct super_tone_tx_state_s | |
42 { | |
43 tone_gen_tone_descriptor_t tone[4]; | |
44 uint32_t phase[4]; | |
45 int current_position; | |
46 int level; | |
47 super_tone_tx_step_t *levels[4]; | |
48 int cycles[4]; | |
49 }; | |
50 | |
51 #endif | |
52 /*- End of file ------------------------------------------------------------*/ |