mpd/src/pcm_utils.h

/* the Music Player Daemon (MPD)
 * (c)2003-2006 by Warren Dukes (warren.dukes@gmail.com)
 * This project's homepage is: http://www.musicpd.org
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * 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 General Public License for more details.
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#ifndef PCM_UTILS_H
#define PMC_UTILS_H

#include "../config.h"

#include "audio.h"

#include <stdlib.h>

void pcm_volumeChange(char * buffer, int bufferSize, AudioFormat * format,
		int volume);

void pcm_mix(char * buffer1, char * buffer2, size_t bufferSize1, 
		size_t bufferSize2, AudioFormat * format, float portion1);

void pcm_convertAudioFormat(AudioFormat * inFormat, char * inBuffer, size_t
                inSize, AudioFormat * outFormat, char * outBuffer);

size_t pcm_sizeOfOutputBufferForAudioFormatConversion(AudioFormat * inFormat,
		size_t inSize, AudioFormat * outFormat);
#endif