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audioproc.h

00001 /* MuSE - Multiple Streaming Engine
00002  * Copyright (C) 2000-2002 Denis Roio aka jaromil <jaromil@dyne.org>
00003  *
00004  * This source code is free software; you can redistribute it and/or
00005  * modify it under the terms of the GNU Public License as published 
00006  * by the Free Software Foundation; either version 2 of the License,
00007  * or (at your option) any later version.
00008  *
00009  * This source code is distributed in the hope that it will be useful,
00010  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00011  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
00012  * Please refer to the GNU Public License for more details.
00013  *
00014  * You should have received a copy of the GNU Public License along with
00015  * this source code; if not, write to:
00016  * Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
00017  */
00018 
00019 #ifndef __AUDIOPROC_H
00020 #define __AUDIOPROC_H
00021 
00022 #include "generic.h"
00023 
00024 /* stream mixers */
00025 
00026 /* TERMINOLOGY
00027    samples are 32bit if stereo, 16bit if mono (assuming 16bit sound)
00028    frames = samples * channels;
00029    bytes = frames * ( sizeof( typeof( frames ) ) );
00030 */
00031 
00032 /*
00033   int mixxx_mono_11(int *dest, short *chan, unsigned int num, float volume);
00034   int mixxx_stereo_11(int *dest, short *chan, unsigned int num, float volume);
00035   int mixxx_mono_16(int *dest, short *chan, unsigned int num, float volume);
00036   int mixxx_stereo_16(int *dest, short *chan, unsigned int num, float volume);
00037 */
00038 #ifdef MOP_RESAMP
00039 int resample_mono_16(IN_DATATYPE *dest, IN_DATATYPE *src, IN_DATATYPE *prev,
00040                   unsigned int num, float volume);
00041 int resample_stereo_16(IN_DATATYPE *dest, IN_DATATYPE *src, IN_DATATYPE *prev,
00042                   unsigned int num, float volume);
00043 #endif
00044 int resample_mono_22(IN_DATATYPE *dest, IN_DATATYPE *src, IN_DATATYPE *prev,
00045                   unsigned int num, float volume);
00046 
00047 int resample_stereo_22(IN_DATATYPE *dest, IN_DATATYPE *src, IN_DATATYPE *prev,
00048                     unsigned int num, float volume);
00049 
00050 #ifdef MOP_RESAMP
00051 int resample_mono_32(IN_DATATYPE *dest, IN_DATATYPE *src, IN_DATATYPE *prev,
00052                   unsigned int num, float volume);
00053 int resample_stereo_32(IN_DATATYPE *dest, IN_DATATYPE *src, IN_DATATYPE *prev,
00054                   unsigned int num, float volume);
00055 #endif
00056 /*
00057 int mixxx_mono_32(int *dest, IN_DATATYPE *chan, IN_DATATYPE *prev,
00058                   unsigned int num, float volume);
00059 int mixxx_stereo_32(int *dest, IN_DATATYPE *chan, IN_DATATYPE *prev,
00060                     unsigned int num, float volume);
00061 */
00062 
00063 int resample_mono_44(IN_DATATYPE *dest, IN_DATATYPE *src, IN_DATATYPE *prev, 
00064                      unsigned int num, float volume);
00065 
00066 int resample_stereo_44(IN_DATATYPE *dest, IN_DATATYPE *src, IN_DATATYPE *prev,
00067                        unsigned int num, float volume);
00068 
00069 /* souncard in mixer */
00070 int mixxx_stereo_44_novol(int *dest, short *chan, int num);
00071 
00072 //int resample(short *in, long int lenght, short *out, int speed);
00073 
00074 #endif

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