tags/start/audioio.h

/***************************************************************************
 *                                                                         *
 *   LinuxSampler - modular, streaming capable sampler                     *
 *                                                                         *
 *   Copyright (C) 2003 by Benno Senoner and Christian Schoenebeck         *
 *                                                                         *
 *   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 __AUDIO_H__
#define __AUDIO_H__

// We only support Alsa at the moment

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <alsa/asoundlib.h>
#include <sched.h>
#include <sys/mman.h>

class AudioIO {
    public:
        int16_t* pOutputBuffer;    ///< This is the buffer where the final mix will be copied to and send to the sound card
        uint     Channels;
        uint     Samplerate;
        uint     Fragments;
        uint     FragmentSize;     ///< in sample points

        AudioIO();
       ~AudioIO();
        int  Initialize(uint channels, uint samplerate, uint numfragments, uint fragmentsize);
        int  Output();
        void Close();
    private:
        snd_pcm_t* pcm_handle; ///< Handle for the PCM device
};

#endif // __AUDIO_H__
1	schoenebeck	5	/***************************************************************************
2			* *
3			* LinuxSampler - modular, streaming capable sampler *
4			* *
5			* Copyright (C) 2003 by Benno Senoner and Christian Schoenebeck *
6			* *
7			* This program is free software; you can redistribute it and/or modify *
8			* it under the terms of the GNU General Public License as published by *
9			* the Free Software Foundation; either version 2 of the License, or *
10			* (at your option) any later version. *
11			* *
12			* This program is distributed in the hope that it will be useful, *
13			* but WITHOUT ANY WARRANTY; without even the implied warranty of *
14			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
15			* GNU General Public License for more details. *
16			* *
17			* You should have received a copy of the GNU General Public License *
18			* along with this program; if not, write to the Free Software *
19			* Foundation, Inc., 59 Temple Place, Suite 330, Boston, *
20			* MA 02111-1307 USA *
21			***************************************************************************/
22
23			#ifndef __AUDIO_H__
24			#define __AUDIO_H__
25
26			// We only support Alsa at the moment
27
28			#include <stdio.h>
29			#include <stdlib.h>
30			#include <string.h>
31			#include <unistd.h>
32			#include <alsa/asoundlib.h>
33			#include <sched.h>
34			#include <sys/mman.h>
35
36			class AudioIO {
37			public:
38			int16_t* pOutputBuffer; ///< This is the buffer where the final mix will be copied to and send to the sound card
39			uint Channels;
40			uint Samplerate;
41			uint Fragments;
42			uint FragmentSize; ///< in sample points
43
44			AudioIO();
45			~AudioIO();
46			int Initialize(uint channels, uint samplerate, uint numfragments, uint fragmentsize);
47			int Output();
48			void Close();
49			private:
50			snd_pcm_t* pcm_handle; ///< Handle for the PCM device
51			};
52
53			#endif // __AUDIO_H__