waveaudiosource.h

rtp在linux下的实现

// WaveAudioSource.h: interface for the WaveAudioSource class.
//
//////////////////////////////////////////////////////////////////////

#ifndef AFX_WAVEAUDIOSOURCE_H__1FF46522_ECF5_44DC_9C3F_EE7E509676D6__INCLUDED_
#define AFX_WAVEAUDIOSOURCE_H__1FF46522_ECF5_44DC_9C3F_EE7E509676D6__INCLUDED_

#ifdef WIN32
#include <windows.h>	// required by mmsystem.h
#include <mmsystem.h>
#endif
#include <list>

#include "AudioSource.h"
#include "Parameters.h"

class AudioSampleManager;

class WaveAudioSource :	public AudioSource
{
public:
	WaveAudioSource();
	virtual ~WaveAudioSource();
	int SetFormat(int waveFormatNumber);
	int SetVolume(unsigned long volume);
	int SetDeviceID(unsigned int deviceID);
	int SetNumBuffers(int n);
	int SetBufferSize(int s);
	int StartSource();
	int StopSource();
	int	SourceThreadStarted(HANDLE sourceThreadHandle, DWORD sourceThreadID);
	int	SourceThreadStopped(HANDLE sourceThreadHandle, DWORD sourceThreadID);
protected:
	virtual int GenerateData(AudioSample **ppAudioSample);
	virtual int SetTraceLevel();
private:
	int BeginAudioCapture();
	int ResetAudioCapture();
	int EndAudioCapture();
	int AddBuffer(int i);
	static void CALLBACK WaveInCallback(HWAVEIN hWaveIn, UINT uMsg, DWORD dwInstance, DWORD dwParam1, DWORD dwParam2);

private:
	WAVEFORMATEX		format;
	HANDLE				dataEvent;
	HWAVEIN				hWaveIn;
	WAVEHDR				waveHdr[WAVESOURCE_MAX_WAVEHDR];
	char				dataBuffer[WAVESOURCE_MAX_WAVEHDR][WAVESOURCE_MAX_WAVEHDR_SIZE];
	int					numBuffers;
	int					bufferSize;
	std::list<WAVEHDR*> buffersToAdd;
	bool				bEnableAddBuffer;
	CRITICAL_SECTION	waveInMutex;
	CRITICAL_SECTION	bufferListMutex;
	CRITICAL_SECTION	filterMutex;
	AudioSampleManager	*audioSampleManager;
	bool				bRunning;
	unsigned int		waveinDeviceID;
	bool				needToSetVolume;
	unsigned int		micVolume;
};

#endif // !defined(AFX_WAVEAUDIOSOURCE_H__1FF46522_ECF5_44DC_9C3F_EE7E509676D6__INCLUDED_)