/*** This file is part of PulseAudio. Copyright 2010 Arun Raghavan The actual implementation is taken from the sources at http://andreadrian.de/intercom/ - for the license, look for adrian-license.txt in the same directory as this file. PulseAudio is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. PulseAudio 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 General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with PulseAudio; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. ***/ /* Forward declarations */ typedef struct AEC AEC; AEC* AEC_init(int RATE, int have_vector); int AEC_doAEC(AEC *a, int d_, int x_);