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void CRecorderDlg::OnRecStart()
{
//分配buffer内存
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(_T("内存申请失败!"));
return ;
}
//打开波形设备并录音
waveform.wFormatTag=WAVE_FORMAT_PCM;
waveform.nChannels=1;
waveform.nSamplesPerSec=11025;
waveform.nAvgBytesPerSec=11025;
waveform.nBlockAlign=1;
waveform.wBitsPerSample=8;
waveform.cbSize=0;
if (waveInOpen(&hWaveIn,WAVE_MAPPER,&waveform,(DWORD)this->m_hWnd,NULL,CALLBACK_WINDOW)) {
free(pBuffer1);
free(pBuffer2);
MessageBeep(MB_ICONEXCLAMATION);
AfxMessageBox(_T("无法打开音频设备!"));
}
pWaveHdr1->lpData=(char*)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=(char*)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));
//////////////////////////////////////////////////////////////////////////
pSaveBuffer = (PBYTE)realloc (pSaveBuffer, 1) ;
//添加缓冲
waveInAddBuffer (hWaveIn, pWaveHdr1, sizeof (WAVEHDR)) ;
waveInAddBuffer (hWaveIn, pWaveHdr2, sizeof (WAVEHDR)) ;
//开始采样
bRecording = TRUE ;
bEnding = FALSE ;
dwDataLength = 0 ;
waveInStart (hWaveIn) ;
}
void CRecorderDlg::OnRecStop()
{
TRACE(_T("停止录音 \n"));
bEnding=TRUE;
Sleep(500);
waveInReset(hWaveIn);
}