/* extract pitch contour of the input sound file */
int SPitchContourExtraction(char* filename,float*& fPitchData,int &nFrm){
SWaveDataStru mySWaveDataStru;
if(WaveRead(filename,mySWaveDataStru)!=0){
printf("Error on WaveRead\n");
return -1;
}
mySWaveDataStru.fs=8000;
SPitchExtraction(mySWaveDataStru, 0.0015f, MIN_PITCH_VALUE, MAX_PITCH_VALUE, 50, 500,fPitchData,nFrm);
delete[] mySWaveDataStru.fDataBuf;
return 0;
}
/* ------------------------------------------------------------------------------------ */
int StreamingAudio::PumpWave(int nSize)
{
HRESULT hr;
void *lpbuf1 = NULL, *lpbuf2 = NULL;
DWORD dwsize1 = 0, dwsize2 = 0;
UINT nBytesRead = 0;
// Ok, we need to set up our "silence" value and adjust it for
// ..8bit samples if needed.
int nSilence = 0x0;
if(m_pWaveFormat->wBitsPerSample == 8)
nSilence = 0x80; // In case wave is 8-bit
// Ok, try to lock <n>K of the buffer. If it fails, just bail this
// ..function.
hr = m_pStream->Lock(m_nOffset, nSize, &lpbuf1, &dwsize1, &lpbuf2, &dwsize2, 0);
if(hr != DS_OK)
{
CCD->ReportError("[WARNING] StreamingAudio::PumpWave: Failed to lock", false);
return RGF_SUCCESS; // Fake it, bail out
}
if(lpbuf1 != NULL)
memset(lpbuf1, nSilence, dwsize1); // Clear to silence
if(lpbuf2 != NULL)
memset(lpbuf2, nSilence, dwsize2); // Here, also
m_nOffset = (m_nOffset + dwsize1 + dwsize2) % kBufferSize;
if(m_fEOF == true)
{
m_pStream->Unlock(lpbuf1, dwsize1, lpbuf2, dwsize2);
return RGF_SUCCESS; // End of file, pump silence
}
if(m_fActive == false)
{
m_pStream->Unlock(lpbuf1, dwsize1, lpbuf2, dwsize2);
return RGF_SUCCESS; // Inactive, pump silence
}
// Fine, read data into the circular buffer directly from the
// ..wave file if there's anything there.
// Fill block #1
hr = WaveRead(m_hWaveFile, dwsize1, (BYTE*)lpbuf1, &m_rRiffData, &nBytesRead);
if(nBytesRead != dwsize1) // End of wave file
{
m_fEOF = true;
// m_pStream->Unlock(lpbuf1, dwsize1, lpbuf2, dwsize2);
// return RGF_SUCCESS;
}
if((lpbuf2 != NULL) && (!m_fEOF))
{
// Fill block #2
hr = WaveRead(m_hWaveFile, dwsize2, (BYTE*)lpbuf2, &m_rRiffData, &nBytesRead);
if(nBytesRead != dwsize2) // End of wave file
m_fEOF = true;
}
// Unlock buffer, we're done with it for now.
m_pStream->Unlock(lpbuf1, dwsize1, lpbuf2, dwsize2);
// Ok, if we're at the end of file AND we're flagged to loop, rewind
// ..to the beginning of the buffer so we start from the top next
// ..time through.
if(m_fEOF && m_bLoops)
Rewind(); // Hope the sound designer looped the WAVE right!
return RGF_SUCCESS;
}
