www.pudn.com > G729_Talk.rar > WaveOut.h

/*------------------------------------------------------------------------------*\ 
 [模块名称] 
	CWaveOut 
 
 [文件名称] 
	CWaveOut.h 
 
 [相关文件] 
	CWaveOut.cpp 
 
 [目的] 
  
     方便音频播放 
     	   
 [描述] 
		 
	封装 waveout api 
	只使用了 pcm 方式 
	 
 [注意] 
 
	PLAY_DELAY 10	//播放时候的延迟，大于它，说明有PLAY_DELAY个包没有播放完成，后面的包不应再播放 
 
 [依赖性] 
	 
	 Winmm.lib  
  
 [版权] 
  
   2002.12 hb  版权所有 
 
 [修改记录] 
  
  版本:    1.01.01 
  日期:    02-12-16  ~  02-12-17    
  作者:    hb 
  Mial:		sendh@21cn.com 
  备注: 
                                                
\*------------------------------------------------------------------------------*/ 
 
#ifndef _WAVEOUT_H_ 
#define _WAVEOUT_H_ 
 
#define WOSA_POOR	8000 
#define WOSA_LOW	11025 
#define WOSA_NORMAL	22050 
#define WOSA_HIGH	44100 
 
#define PLAY_DELAY 10 
 
#include  
#include  
class CWaveOut   
{ 
public: 
	static DWORD WINAPI AudioOutThreadProc(LPVOID lpParameter); 
public: 
	BOOL SetFormatByFile(CString file); 
	BOOL Play(char* buf,UINT uSize); 
 
	BOOL StartPlay(); 
	BOOL StopPlay();	 
 
	inline int GetBufferNum(); 
	inline void BufferSub(); 
	inline void BufferAdd(); 
 
	inline DWORD GetInstance(); 
	inline WORD GetBit(); 
	inline DWORD GetSample(); 
	inline WORD GetChannel(); 
 
	inline void SetBit(WORD wBit); 
	inline void SetSample(DWORD dwSample); 
	inline void SetChannel(WORD wChannel); 
 
	inline MMRESULT GetLastMMError(); 
	CString GetLastErrorString(); 
 
	CWaveOut(); 
	virtual ~CWaveOut(); 
protected: 
	BOOL OpenDev(); 
	BOOL CloseDev(); 
 
	BOOL StopThread(); 
	BOOL StartThread(); 
protected: 
	static DWORD s_dwInstance; 
protected: 
	WORD m_wChannel; 
	DWORD m_dwSample; 
	WORD m_wBit; 
protected: 
	MMRESULT m_mmr; 
	HWAVEOUT m_hOut; 
	HANDLE m_hAudioOut; 
	DWORD m_dwAudioOutId; 
 
	int m_iBufferNum; 
	CCriticalSection m_csLock; 
 
	BOOL m_bThreadStart; 
	BOOL m_bDevOpen; 
	friend DWORD WINAPI AudioOutThreadProc(LPVOID lpParameter); 
}; 
 
#endif