rectestdlg.cpp

通过网络发送audio的代码

				{
					ret = m_Client.Send((pdlg->m_AudioDataIn[pdlg->nSend].lpdata+dwSent),(length-dwSent));
					if(ret==SOCKET_ERROR)//检错
					{
						AfxMessageBox("声音文件传输错误!"+pdlg->GetError(GetLastError()));
						pdlg->OnOK();
						break;			
					}
					else //发送未发送完的
					{
						dwSent += ret;
						if(dwSent ==length)
						{   
    							free(pdlg->m_AudioDataIn[pdlg->nSend].lpdata);
							pdlg->m_AudioDataIn[pdlg->nSend].dwLength = 0;
							break;
						}
					}	
				}  //======================================发送声音文件结束
			}
			pdlg->nSend = (pdlg->nSend +1)% InBlocks;
			}
			
	}
	else 
		AfxMessageBox("Socket连接失败"+pdlg->GetError(GetLastError()));
	m_Client.Close();
	return 0;
}

CString CRecTestDlg::GetError(DWORD error)	//返回错误信息
{
	CString strError;
	switch(error)
	{
	case WSANOTINITIALISED:
		strError="初始化错误";
		break;
	case WSAENOTCONN:
		strError="对方没有启动";
		break;
	case WSAEWOULDBLOCK :
		strError="对方已经关闭";
		break;
	case WSAECONNREFUSED:
		strError="连接的尝试被拒绝";
		break;
	case WSAENOTSOCK:
		strError="在一个非套接字上尝试了一个操作";
		break;
	case WSAEADDRINUSE:
		strError="特定的地址已在使用中";
		break;
	case WSAECONNRESET:
		strError="与主机的连接被关闭";
		break;
	default:
		strError="一般错误";	
	}
	return strError;
	
}

void CRecTestDlg::OnBegin() 
{
	// TODO: Add your control notification handler code here
	GetDlgItem(IDC_BEGIN)->EnableWindow(false);

	//allocate buffer memory
	pBuffer1=(PBYTE)malloc(INP_BUFFER_SIZE);
	pBuffer2=(PBYTE)malloc(INP_BUFFER_SIZE);
	if (!pBuffer1 || !pBuffer2) 
	{
		if (pBuffer1) 
			free(pBuffer1);
		if (pBuffer2) 
			free(pBuffer2);
		MessageBeep(MB_ICONEXCLAMATION);
		AfxMessageBox("Memory erro!");
		return ;
	}

	//open waveform audio for input
	
	m_waveformin.wFormatTag=WAVE_FORMAT_PCM;
	m_waveformin.nChannels=1;
	m_waveformin.nSamplesPerSec=11025;//采样频率
	m_waveformin.nAvgBytesPerSec=11025;
	m_waveformin.nBlockAlign=1;
	m_waveformin.wBitsPerSample=8;
	m_waveformin.cbSize=0;

	
	if (waveInOpen(&hWaveIn,WAVE_MAPPER,&m_waveformin,(DWORD)this->m_hWnd,NULL,CALLBACK_WINDOW))
	{	//	打开录音设备函数 
		free(pBuffer1);
		free(pBuffer2);
		MessageBeep(MB_ICONEXCLAMATION);
		AfxMessageBox("Audio can not be open!");
	}
	pWaveHdr1->lpData=(LPTSTR)pBuffer1;
	pWaveHdr1->dwBufferLength=INP_BUFFER_SIZE;
	pWaveHdr1->dwBytesRecorded=0;
	pWaveHdr1->dwUser=0;
	pWaveHdr1->dwFlags=0;
	pWaveHdr1->dwLoops=1;
	pWaveHdr1->lpNext=NULL;
	pWaveHdr1->reserved=0;
	
	waveInPrepareHeader(hWaveIn,pWaveHdr1,sizeof(WAVEHDR));
	
	pWaveHdr2->lpData=(LPTSTR)pBuffer2;
	pWaveHdr2->dwBufferLength=INP_BUFFER_SIZE;
	pWaveHdr2->dwBytesRecorded=0;
	pWaveHdr2->dwUser=0;
	pWaveHdr2->dwFlags=0;
	pWaveHdr2->dwLoops=1;
	pWaveHdr2->lpNext=NULL;
	pWaveHdr2->reserved=0;
	
	waveInPrepareHeader(hWaveIn,pWaveHdr2,sizeof(WAVEHDR));
			
	// Add the buffers
	
	waveInAddBuffer (hWaveIn, pWaveHdr1, sizeof (WAVEHDR)) ;
	waveInAddBuffer (hWaveIn, pWaveHdr2, sizeof (WAVEHDR)) ;
		
	// Begin sampling
	waveInStart (hWaveIn) ;
	UpdateData(true);
	g_ServerIp=m_ServerIp;


	

	m_waveformout.wFormatTag		=	WAVE_FORMAT_PCM;
	m_waveformout.nChannels		    =1;
	m_waveformout.nSamplesPerSec	=11025;
	m_waveformout.nAvgBytesPerSec   =11025;
	m_waveformout.nBlockAlign	    =1;
	m_waveformout.wBitsPerSample	=8;
	m_waveformout.cbSize			=0;
	
	
	
	//	下面函数的调用会触发另一个函数
	if (waveOutOpen(&hWaveOut,WAVE_MAPPER,&m_waveformout,(DWORD)this->m_hWnd,NULL,CALLBACK_WINDOW)) {
		MessageBeep(MB_ICONEXCLAMATION);
		AfxMessageBox("Audio output erro");
	}
	//	run the thread
	::AfxBeginThread(Audio_Send_Thread,this);
	//::AfxBeginThread(Audio_Listen_Thread,this);
	return ;

}

void CRecTestDlg::OnMM_WIM_DATA(UINT wParam,LONG lParam)
{
   
	int nextBlock = (nAudioIn+1)% InBlocks;
	//	在发送线程函数中，如果发送完一块，他会置0
	//	如果下一“块”没发走只有是index回到了头
	if(m_AudioDataIn[nextBlock].dwLength!=0)//下一“块”没发走
	{	//	把PWAVEHDR(即pBUfferi)里的数据拷贝到当前“块”中
        
	 	m_AudioDataIn[nAudioIn].lpdata  
		= (PBYTE)realloc (m_AudioDataIn[nAudioIn].lpdata , (((PWAVEHDR) lParam)->dwBytesRecorded+m_AudioDataIn[nAudioIn].dwLength)) ;
		if (m_AudioDataIn[nAudioIn].lpdata == NULL)
		{
			waveInClose (hWaveIn) ;
			MessageBeep (MB_ICONEXCLAMATION) ;
			AfxMessageBox("erro memory OnMM_WIM_DATA");
			return ;
		}
		CopyMemory (
			(m_AudioDataIn[nAudioIn].lpdata+m_AudioDataIn[nAudioIn].dwLength), 
				   ((PWAVEHDR) lParam)->lpData,
				   ((PWAVEHDR) lParam)->dwBytesRecorded
				   ) ;//(*destination,*resource,nLen);
		
		m_AudioDataIn[nAudioIn].dwLength +=((PWAVEHDR) lParam)->dwBytesRecorded;
        
	}
	else //把PWAVEHDR(即pBUfferi)里的数据拷贝到下一“块”中
	{
		nAudioIn = (nAudioIn+1)% InBlocks;
		m_AudioDataIn[nAudioIn].lpdata = (PBYTE)realloc
			(0,((PWAVEHDR) lParam)->dwBytesRecorded);
		CopyMemory(m_AudioDataIn[nAudioIn].lpdata,
			    ((PWAVEHDR) lParam)->lpData,
				((PWAVEHDR) lParam)->dwBytesRecorded) ;
	   m_AudioDataIn[nAudioIn].dwLength =((PWAVEHDR) lParam)->dwBytesRecorded;

	}
  	// Send out a new buffer	
	waveInAddBuffer (hWaveIn, (PWAVEHDR) lParam, sizeof (WAVEHDR)) ;
	return ;

	
}

void CRecTestDlg::OnMM_WIM_CLOSE(UINT wParam,LONG lParam)
{
	//	You must call this function before freeing the buffer
	waveInUnprepareHeader (hWaveIn, pWaveHdr1, sizeof (WAVEHDR)) ;
	waveInUnprepareHeader (hWaveIn, pWaveHdr2, sizeof (WAVEHDR)) ;
	
	free (pBuffer1) ;
	free (pBuffer2) ;

	return ;
}

// 打开输出时时自动调用这个函数
void CRecTestDlg::OnMM_WOM_OPEN(UINT wParam,LONG lParam)
{   
	// Set up header    
	pWaveHdrOut->lpData          = (LPTSTR)m_AudioDataOut[nAudioOut].lpdata ;
	pWaveHdrOut->dwBufferLength  = m_AudioDataOut[nAudioOut].dwLength ;
	pWaveHdrOut->dwBytesRecorded = 0 ;
	pWaveHdrOut->dwUser          = 0 ;
	pWaveHdrOut->dwFlags         = WHDR_BEGINLOOP ;
	pWaveHdrOut->dwLoops         = 1 ;
	pWaveHdrOut->lpNext          = NULL ;
	pWaveHdrOut->reserved        = 0 ;

    // Prepare and write
	waveOutPrepareHeader (hWaveOut, pWaveHdrOut, sizeof (WAVEHDR)) ;
	waveOutWrite (hWaveOut, pWaveHdrOut, sizeof (WAVEHDR)) ;

	return;
	
}
//数据已经播放完时才会触发这个消息函数
void CRecTestDlg::OnMM_WOM_DONE(UINT wParam,LONG lParam)
{  
	free(m_AudioDataOut[nAudioOut].lpdata);
	m_AudioDataOut[nAudioOut].lpdata = reinterpret_cast<PBYTE>(malloc(1));
	m_AudioDataOut[nAudioOut].dwLength = 0;
	//一块已经播放完毕，这时让其指向另一块缓冲区进行播放
	nAudioOut= (nAudioOut+1)%OutBlocks;
	((PWAVEHDR)lParam)->lpData          = (LPTSTR)m_AudioDataOut[nAudioOut].lpdata ;
	((PWAVEHDR)lParam)->dwBufferLength  = m_AudioDataOut[nAudioOut].dwLength ;
	TRACE("the next length %d\n",((PWAVEHDR)lParam)->dwBufferLength);
/////////////////////////////////////////////////////////////////////////////
	// Prepare and write
	waveOutPrepareHeader (hWaveOut,(PWAVEHDR)lParam,sizeof(WAVEHDR));
	waveOutWrite(hWaveOut,(PWAVEHDR)lParam,sizeof(WAVEHDR));//cut
	return;

}
void CRecTestDlg::OnMM_WOM_CLOSE(UINT wParam,LONG lParam)
{
	waveOutUnprepareHeader (hWaveOut, pWaveHdrOut, sizeof (WAVEHDR)) ;
		
	//release all the memory of the AudioData
	for(int i=0;i<InBlocks;i++)
	{
		if(m_AudioDataIn[i].dwLength != 0)
			free(m_AudioDataIn[i].lpdata);
		
	}
	for(i=0;i<OutBlocks;i++)
	{
		if(m_AudioDataOut[i].dwLength != 0)
			free(m_AudioDataOut[i].lpdata);
	}
}

//	退出
void CRecTestDlg::OnOK() 
{
	// TODO: Add extra validation here
	//	stops input on the given waveform-audio input device 
	//	and resets the current position to zero
	waveInReset(hWaveIn);
	waveInClose(hWaveIn);
	
	waveOutReset(hWaveOut);
	waveOutClose (hWaveOut);	
	CDialog::OnOK();
}