session-ios/Libraries/spandsp/spandsp/spandsp/private/noise.h

49 lines
1.4 KiB
C

/*
* SpanDSP - a series of DSP components for telephony
*
* private/noise.h - A low complexity audio noise generator, suitable for
* real time generation (current just approx AWGN)
*
* Written by Steve Underwood <steveu@coppice.org>
*
* Copyright (C) 2005 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.
*
* $Id: noise.h,v 1.1 2008/11/30 12:45:09 steveu Exp $
*/
/*! \file */
#if !defined(_SPANDSP_PRIVATE_NOISE_H_)
#define _SPANDSP_PRIVATE_NOISE_H_
/*!
Noise generator descriptor. This contains all the state information for an instance
of the noise generator.
*/
struct noise_state_s
{
int class_of_noise;
int quality;
int32_t rms;
uint32_t rndnum;
int32_t state;
};
#endif
/*- End of file ------------------------------------------------------------*/