www.pudn.com > AudioWave.rar > SOUND.H


// Sound.h: interface for the CSoundIn class.
//
//////////////////////////////////////////////////////////////////////
/*

This program is Copyright Developped by Yannick Sustrac
yannstrc@mail.dotcom.fr
http://www.mygale.org/~yannstrc/


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., 675 Mass Ave, Cambridge, MA 02139, USA.

*/
//////////////////////////////////////////////////////////////////////////////////////////


#if !defined(AFX_SOUND_H__69C928C4_1F19_11D2_8045_30460BC10000__INCLUDED_)
#define AFX_SOUND_H__69C928C4_1F19_11D2_8045_30460BC10000__INCLUDED_

#if _MSC_VER >= 1000
#pragma once
#endif // _MSC_VER >= 1000

#include <mmsystem.h>

#define MAX_SAMPLES 8192 //>>>>>>>> must also be defined in CFft
#define MAX_VOIE 2
#define MAX_SIZE_SAMPLES 1 // WORD
#define MAX_SIZE_INPUT_BUFFER MAX_SAMPLES*MAX_VOIE*MAX_SIZE_SAMPLES
#define DEFAULT_CAL_OFFSET -395 // >>>>> depends of you sound card
#define DEFAULT_CAL_GAIN 1.0


class CSound
{
public:
// used for int FFT
SHORT InputBuffer[MAX_SIZE_INPUT_BUFFER];

WAVEINCAPS m_WaveInDevCaps;
HWAVEIN m_WaveIn;
WAVEHDR m_WaveHeader;
WAVEFORMATEX m_WaveFormat;

/////////////////////////////////
/////////////////////////////////
WAVEOUTCAPS m_WaveOutDevCaps;
HWAVEOUT m_WaveOut;
/////////////////////////////////
/////////////////////////////////

short m_CalOffset;
double m_CalGain;

short *m_psSoundData;

HANDLE m_WaveEvent;
CWinThread * m_WaveInThread;
BOOL m_TerminateThread;

UINT m_WaveInSampleRate;
int m_NbMaxSamples;
UINT m_SizeRecord;
WORD m_Toggle; /*0 or 1 according the buffer currently loaded*/
BOOL bRec;

public :
void StartMic();
void StopMic();
void CloseMic();
void AddBuffer();
void RecSoundData();

void SetMaxSamples(int nMaxSamples);

void StartOutput();
void StopOutput();
void CloseOutput();
void SetRec();

public :
virtual void RazBuffers();
virtual void ComputeSamples(SHORT *); // calibrate the samples for the basse class
// this function is overloaded by the parent
// it need to call this function first to calibrate them
//////////////////////////////////////////////////////
// functions members
MMRESULT OpenMic(int nChannel, int nSamplesPerSec, int nBitPerPoint, int nMaxSamples);
void WaveInitFormat( WORD nCh, // number of channels (mono, stereo)
DWORD nSampleRate, // sample rate
WORD BitsPerSample);
//void CALLBACK waveInProc( HWAVEIN hwi, UINT uMsg, DWORD dwInstance, DWORD dwParam1, DWORD dwParam2 );

CSound();
virtual ~CSound();

};

// global Thread procedure
UINT WaveThreadProc( LPVOID pParam);

#endif