void CPlaySound::OnWriteSoundData(WPARAM wParam, LPARAM lParam)
{
LPWAVEHDR lpHdr = (LPWAVEHDR) lParam;
MMRESULT err = 0;
if (lpHdr)
{
//char debugbuffer[256];
//sprintf(debugbuffer, "SOUND BUFFER written: %d, %d\n",lpHdr->dwBufferLength,m_nOutputBuffers);
//TRACE(debugbuffer);
if (m_bPlay)
{
short * lpInt = (short *) lpHdr->lpData;
DWORD dwSamples = lpHdr->dwBufferLength/sizeof(short);
ProcessSoundData(lpInt, dwSamples);
err = ::waveOutPrepareHeader(m_hPlay, lpHdr, sizeof(WAVEHDR));
if (err)
TRACE("error from waveoutprepareheader\n");
err = ::waveOutWrite(m_hPlay, lpHdr, sizeof(WAVEHDR));
if (err)
TRACE("error from waveoutwrite\n");
m_nOutputBuffers++;
}
}
}
LRESULT CRecordSound::OnSoundData(WPARAM wParam, LPARAM lParam)
{
LPWAVEHDR lpHdr = (LPWAVEHDR) lParam;
if(lpHdr)
{
short int * lpInt = (short int*) lpHdr->lpData;
DWORD cbRecorded = lpHdr->dwBytesRecorded;
::waveInUnprepareHeader(m_hRecord, lpHdr, sizeof(WAVEHDR));
ProcessSoundData(lpInt, cbRecorded/sizeof(short int));
// if ((cbRecorded==0)&&(m_bRecording == FALSE))//无声音缓冲进入
// {
// TRACE("firsttime =TRUE\n");
// firsttime =TRUE;
// }
if(m_Writer)
{
WAVEHDR* pWriteHdr = new WAVEHDR;
if(!pWriteHdr)
return FALSE;
memcpy(pWriteHdr,lpHdr,sizeof(WAVEHDR));
BYTE * pSound = new BYTE[lpHdr->dwBufferLength];
if(!pSound)
{
if (pWriteHdr)
{
delete pWriteHdr;
}
return FALSE;
}
memcpy(pSound,lpHdr->lpData,lpHdr->dwBufferLength);
pWriteHdr->lpData = (char*)pSound;
m_Writer->PostThreadMessage(WM_WRITESOUNDFILE_WRITEBLOCK,GetCurrentThreadId(),(LPARAM) pWriteHdr);
}
if(m_Player)
{
m_Player->PostThreadMessage(WM_PLAYSOUND_PLAYBLOCK, GetCurrentThreadId(),(LPARAM) lpHdr);
}
else
{
if (lpHdr->lpData)
{
delete lpHdr->lpData;
lpHdr->lpData = NULL;
}
if (lpHdr)
{
delete lpHdr;
lpHdr = NULL;
}
}
char debugbuffer[256];
sprintf(debugbuffer, "SOUND BUFFER returned: %d\n",cbRecorded);
TRACE(debugbuffer);
if(m_bRecording)
{
LPWAVEHDR lpHdr = CreateWaveHeader();
::waveInPrepareHeader(m_hRecord,lpHdr, sizeof(WAVEHDR));
::waveInAddBuffer(m_hRecord, lpHdr, sizeof(WAVEHDR));
m_nInputBuffers++;
}
}
return ERROR_SUCCESS;
}
