/*
    ReplayGainAnalysis - analyzes input samples and give the recommended dB change
    Copyright (C) 2001  David Robinson and Glen Sawyer

    This library 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.

    This library 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 library; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA




   concept and filter values by David Robinson ( David@Robinson.org )
       --blame him if you think the idea is flawed

   coding by Glen Sawyer ( glensawyer@hotmail.com )
   442 N 700 E, Provo, UT  84606  USA
       --blame him if you think this runs too slowly, or the coding is
        otherwise flawed

   For an explanation of the concepts and the basic algorithms involved, go to
   http://www.replaygain.org

*/

#ifndef GAIN_ANALYSIS_H
#define GAIN_ANALYSIS_H

#define GAIN_NOT_ENOUGH_SAMPLES -24601
#define GAIN_ANALYSIS_ERROR 0
#define GAIN_ANALYSIS_OK 1

#define INIT_GAIN_ANALYSIS_ERROR 0
#define INIT_GAIN_ANALYSIS_OK 1

#ifdef __cplusplus
extern "C" {
#endif

int InitGainAnalysis(double sampling_kHz);

int AnalyzeSamples(double *left_samples, double *right_samples, long num_samples, int num_channels);

double GetRadioGain();

double GetAudiophileGain();

#ifdef __cplusplus
}
#endif


#endif