mirror of
https://github.com/WinampDesktop/winamp.git
synced 2024-11-30 20:54:31 +01:00
62 lines
2.2 KiB
C
62 lines
2.2 KiB
C
/*
|
|
* 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 (mp3gain@hotmail.com) 735 W 255 N, Orem, UT 84057-4505 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
|
|
|
|
#include <stddef.h>
|
|
#include <bfc/platform/export.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
|
|
|
|
typedef float Float_t; // Type used for filtering
|
|
|
|
DLLEXPORT void * WACreateRGContext();
|
|
DLLEXPORT void WAFreeRGContext(void *context);
|
|
|
|
int DLLEXPORT WAInitGainAnalysis(void *context, long samplefreq);
|
|
int DLLEXPORT WAAnalyzeSamples(void *context, const Float_t* left_samples, const Float_t* right_samples, size_t num_samples, int num_channels);
|
|
int DLLEXPORT WAResetSampleFrequency ( void *context, long samplefreq );
|
|
Float_t DLLEXPORT WAGetTitleGain(void *context);
|
|
Float_t DLLEXPORT WAGetAlbumGain(void *context);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* GAIN_ANALYSIS_H */
|