521 lines
18 KiB
C++
521 lines
18 KiB
C++
|
|
||
|
|
|
||
|
|
|
||
|
|
#include "precomp.h"
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/*************************************************************************
|
||
|
|
|
||
|
|
Function: AudioFile::OpenSourceFile(MMIOSRC *pSrcFile, WAVEFORMATEX *pwf)
|
||
|
|
|
||
|
|
Purpose : Opens wav file to read audio data from.
|
||
|
|
|
||
|
|
Returns : HRESULT.
|
||
|
|
|
||
|
|
Params : None
|
||
|
|
|
||
|
|
Comments: * Registry keys:
|
||
|
|
\\HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Audio\PlayFromFile\fPlayFromFile
|
||
|
|
If set to zero, data will not be read from wav file.
|
||
|
|
If set to a non null value <= INT_MAX, data will be read from wav file.
|
||
|
|
\\HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Audio\PlayFromFile\szInputFileName
|
||
|
|
Name of the wav file to read audio data from.
|
||
|
|
\\HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Audio\PlayFromFile\fLoop
|
||
|
|
If set to zero, the file will only be read once.
|
||
|
|
If set to a non null value <= INT_MAX, the file will be read circularly.
|
||
|
|
\\HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Audio\PlayFromFile\cchIOBuffer
|
||
|
|
If set to zero, size of the MM IO buffer is set to its default value (8Kbytes).
|
||
|
|
If set to one, size of the MM IO buffer is set to match maximum size of the wav file.
|
||
|
|
If set a non null value between 2 and INT_MAX, size of the MM IO buffer is set to cchIOBuffer bytes.
|
||
|
|
|
||
|
|
History : Date Reason
|
||
|
|
06/02/96 Created - PhilF
|
||
|
|
|
||
|
|
*************************************************************************/
|
||
|
|
HRESULT AudioFile::OpenSourceFile (MMIOSRC *pSrcFile, WAVEFORMATEX *pwf)
|
||
|
|
{
|
||
|
|
HRESULT hr = DPR_SUCCESS;
|
||
|
|
MMIOINFO mmioInfo;
|
||
|
|
long cchBuffer;
|
||
|
|
WAVEFORMATEX *pwfFile;
|
||
|
|
DWORD dw;
|
||
|
|
|
||
|
|
FX_ENTRY ("SendAudioStream::OpenSrcFile")
|
||
|
|
|
||
|
|
RegEntry reIPhoneInFile(szRegInternetPhone TEXT("\\") szRegInternetPhoneInputFile,
|
||
|
|
HKEY_LOCAL_MACHINE,
|
||
|
|
FALSE,
|
||
|
|
KEY_READ);
|
||
|
|
|
||
|
|
// For now, get the file name from the registry
|
||
|
|
if (pSrcFile->fPlayFromFile = reIPhoneInFile.GetNumberIniStyle(TEXT("fPlayFromFile"), FALSE))
|
||
|
|
{
|
||
|
|
lstrcpyn(pSrcFile->szInputFileName,
|
||
|
|
reIPhoneInFile.GetString(TEXT("szInputFileName")),
|
||
|
|
CCHMAX(pSrcFile->szInputFileName));
|
||
|
|
cchBuffer = reIPhoneInFile.GetNumberIniStyle(TEXT("cchIOBuffer"), 0L);
|
||
|
|
pSrcFile->fLoop = reIPhoneInFile.GetNumberIniStyle(TEXT("fLoop"), TRUE);
|
||
|
|
pSrcFile->fDisconnectAfterPlayback
|
||
|
|
= reIPhoneInFile.GetNumberIniStyle(TEXT("fDisconnectAfterPlayback"), FALSE);
|
||
|
|
|
||
|
|
cchBuffer = MMIO_DEFAULTBUFFER;
|
||
|
|
|
||
|
|
ZeroMemory(&mmioInfo, sizeof(MMIOINFO));
|
||
|
|
do
|
||
|
|
{
|
||
|
|
mmioInfo.cchBuffer = cchBuffer;
|
||
|
|
pSrcFile->hmmioSrc = mmioOpen((LPSTR)&(pSrcFile->szInputFileName[0]), (LPMMIOINFO)&mmioInfo, MMIO_READ | MMIO_DENYWRITE | MMIO_EXCLUSIVE | MMIO_ALLOCBUF);
|
||
|
|
cchBuffer /= 2;
|
||
|
|
} while ((mmioInfo.wErrorRet == MMIOERR_OUTOFMEMORY) && (mmioInfo.cchBuffer > MMIO_DEFAULTBUFFER));
|
||
|
|
|
||
|
|
if (pSrcFile->hmmioSrc)
|
||
|
|
{
|
||
|
|
// Locate a 'WAVE' form type in a 'RIFF' thing...
|
||
|
|
pSrcFile->ckSrcRIFF.fccType = mmioFOURCC('W', 'A', 'V', 'E');
|
||
|
|
if (mmioDescend(pSrcFile->hmmioSrc, (LPMMCKINFO)&(pSrcFile->ckSrcRIFF), NULL, MMIO_FINDRIFF))
|
||
|
|
goto MyMMIOErrorExit3;
|
||
|
|
|
||
|
|
// We found a WAVE chunk--now go through and get all subchunks that we know how to deal with
|
||
|
|
while (mmioDescend(pSrcFile->hmmioSrc, &(pSrcFile->ckSrc), &(pSrcFile->ckSrcRIFF), 0) == 0)
|
||
|
|
{
|
||
|
|
// Quickly check for corrupt RIFF file--don't ascend past end!
|
||
|
|
if ((pSrcFile->ckSrc.dwDataOffset + pSrcFile->ckSrc.cksize) > (pSrcFile->ckSrcRIFF.dwDataOffset + pSrcFile->ckSrcRIFF.cksize))
|
||
|
|
goto MyMMIOErrorExit1;
|
||
|
|
// Make sure the wave format structure of this file is compatible with the microphone
|
||
|
|
if (pSrcFile->ckSrc.ckid == mmioFOURCC('f', 'm', 't', ' '))
|
||
|
|
{
|
||
|
|
if ((dw = pSrcFile->ckSrc.cksize) < sizeof(WAVEFORMATEX))
|
||
|
|
dw = sizeof(WAVEFORMATEX);
|
||
|
|
|
||
|
|
if (!(pwfFile = (WAVEFORMATEX *)GlobalAllocPtr(GHND, dw)))
|
||
|
|
goto MyMMIOErrorExit1;
|
||
|
|
|
||
|
|
dw = pSrcFile->ckSrc.cksize;
|
||
|
|
if (mmioRead(pSrcFile->hmmioSrc, (HPSTR)pwfFile, dw) != (LONG)dw)
|
||
|
|
goto MyMMIOErrorExit0;
|
||
|
|
if (dw == sizeof(WAVEFORMATEX))
|
||
|
|
pwfFile->cbSize = 0;
|
||
|
|
if ((pwfFile->wFormatTag != pwf->wFormatTag) || (pwfFile->nChannels != pwf->nChannels)
|
||
|
|
|| (pwfFile->nSamplesPerSec != pwf->nSamplesPerSec) || (pwfFile->nAvgBytesPerSec != pwf->nAvgBytesPerSec)
|
||
|
|
|| (pwfFile->nBlockAlign != pwf->nBlockAlign) || (pwfFile->wBitsPerSample != pwf->wBitsPerSample) || (pwfFile->cbSize != pwf->cbSize))
|
||
|
|
goto MyMMIOErrorExit0;
|
||
|
|
pwfFile = (WAVEFORMATEX *)(UINT_PTR)GlobalFreePtr(pwfFile);
|
||
|
|
}
|
||
|
|
// Step up to prepare for next chunk..
|
||
|
|
mmioAscend(pSrcFile->hmmioSrc, &(pSrcFile->ckSrc), 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Go back to beginning of data portion of WAVE chunk
|
||
|
|
if (-1L == mmioSeek(pSrcFile->hmmioSrc, pSrcFile->ckSrcRIFF.dwDataOffset + sizeof(FOURCC), SEEK_SET))
|
||
|
|
goto MyMMIOErrorExit2;
|
||
|
|
pSrcFile->ckSrc.ckid = mmioFOURCC('d', 'a', 't', 'a');
|
||
|
|
if (mmioDescend(pSrcFile->hmmioSrc, &(pSrcFile->ckSrc), &(pSrcFile->ckSrcRIFF), MMIO_FINDCHUNK))
|
||
|
|
goto MyMMIOErrorExit2;
|
||
|
|
pSrcFile->dwMaxDataLength = pSrcFile->ckSrc.cksize;
|
||
|
|
pSrcFile->dwDataLength = 0;
|
||
|
|
pSrcFile->wfx = *pwf;
|
||
|
|
|
||
|
|
// At this point, the src file is sitting at the very
|
||
|
|
// beginning of its data chunks--so we can read from the src file...
|
||
|
|
|
||
|
|
goto MyLastExit;
|
||
|
|
|
||
|
|
MyMMIOErrorExit0:
|
||
|
|
GlobalFreePtr(pwfFile);
|
||
|
|
MyMMIOErrorExit1:
|
||
|
|
mmioAscend(pSrcFile->hmmioSrc, &(pSrcFile->ckSrc), 0);
|
||
|
|
MyMMIOErrorExit2:
|
||
|
|
mmioAscend(pSrcFile->hmmioSrc, &(pSrcFile->ckSrcRIFF), 0);
|
||
|
|
MyMMIOErrorExit3:
|
||
|
|
mmioClose(pSrcFile->hmmioSrc, 0);
|
||
|
|
pSrcFile->hmmioSrc = NULL;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
MyLastExit:
|
||
|
|
|
||
|
|
return hr;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/*************************************************************************
|
||
|
|
|
||
|
|
Function: AudioFile::CloseSourceFile(void)
|
||
|
|
|
||
|
|
Purpose : Close wav file used to read audio data from.
|
||
|
|
|
||
|
|
Returns : HRESULT.
|
||
|
|
|
||
|
|
Params : None
|
||
|
|
|
||
|
|
Comments:
|
||
|
|
|
||
|
|
History : Date Reason
|
||
|
|
06/02/96 Created - PhilF
|
||
|
|
|
||
|
|
*************************************************************************/
|
||
|
|
HRESULT AudioFile::CloseSourceFile (MMIOSRC *pSrcFile)
|
||
|
|
{
|
||
|
|
HRESULT hr = DPR_SUCCESS;
|
||
|
|
|
||
|
|
FX_ENTRY ("SendAudioStream::CloseSrcFile")
|
||
|
|
|
||
|
|
if (pSrcFile->fPlayFromFile && pSrcFile->hmmioSrc)
|
||
|
|
{
|
||
|
|
mmioAscend(pSrcFile->hmmioSrc, &(pSrcFile->ckSrc), 0);
|
||
|
|
mmioAscend(pSrcFile->hmmioSrc, &(pSrcFile->ckSrcRIFF), 0);
|
||
|
|
mmioClose(pSrcFile->hmmioSrc, 0);
|
||
|
|
pSrcFile->hmmioSrc = NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
return hr;
|
||
|
|
}
|
||
|
|
|
||
|
|
HRESULT AudioFile::ReadSourceFile(MMIOSRC *pmmioSrc, BYTE *pData, DWORD dwBytesToRead)
|
||
|
|
{
|
||
|
|
|
||
|
|
long lNumBytesRead;
|
||
|
|
bool bCloseFile = false;
|
||
|
|
|
||
|
|
FX_ENTRY ("AdPckt::ReadFromFile")
|
||
|
|
|
||
|
|
if (pmmioSrc->hmmioSrc == NULL)
|
||
|
|
return S_FALSE;
|
||
|
|
|
||
|
|
|
||
|
|
if (dwBytesToRead)
|
||
|
|
{
|
||
|
|
MyRead:
|
||
|
|
if ((pmmioSrc->dwDataLength + dwBytesToRead) <= pmmioSrc->dwMaxDataLength)
|
||
|
|
{
|
||
|
|
lNumBytesRead = mmioRead(pmmioSrc->hmmioSrc, (char*)pData, dwBytesToRead);
|
||
|
|
pmmioSrc->dwDataLength += lNumBytesRead;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
lNumBytesRead = mmioRead(pmmioSrc->hmmioSrc, (char*)pData, pmmioSrc->dwMaxDataLength - pmmioSrc->dwDataLength);
|
||
|
|
pmmioSrc->dwDataLength += lNumBytesRead;
|
||
|
|
|
||
|
|
// silence out the remainder of the block
|
||
|
|
if (pmmioSrc->wfx.wBitsPerSample != 8)
|
||
|
|
{
|
||
|
|
ZeroMemory(pData, dwBytesToRead - lNumBytesRead);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
FillMemory(pData, dwBytesToRead - lNumBytesRead, 0x80);
|
||
|
|
}
|
||
|
|
|
||
|
|
pmmioSrc->dwDataLength = 0;
|
||
|
|
lNumBytesRead = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!lNumBytesRead)
|
||
|
|
{
|
||
|
|
if (pmmioSrc->fLoop && !pmmioSrc->fDisconnectAfterPlayback)
|
||
|
|
{
|
||
|
|
// Reset file pointer to beginning of data
|
||
|
|
mmioAscend(pmmioSrc->hmmioSrc, &(pmmioSrc->ckSrc), 0);
|
||
|
|
if (-1L == mmioSeek(pmmioSrc->hmmioSrc, pmmioSrc->ckSrcRIFF.dwDataOffset + sizeof(FOURCC), SEEK_SET))
|
||
|
|
{
|
||
|
|
DEBUGMSG (1, ("MediaControl::OpenSrcFile: Couldn't seek in file, mmr=%ld\r\n", (ULONG) 0L));
|
||
|
|
bCloseFile = true;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
pmmioSrc->ckSrc.ckid = mmioFOURCC('d', 'a', 't', 'a');
|
||
|
|
if (mmioDescend(pmmioSrc->hmmioSrc, &(pmmioSrc->ckSrc), &(pmmioSrc->ckSrcRIFF), MMIO_FINDCHUNK))
|
||
|
|
{
|
||
|
|
DEBUGMSG (1, ("MediaControl::OpenSrcFile: Couldn't locate 'data' chunk, mmr=%ld\r\n", (ULONG) 0L));
|
||
|
|
bCloseFile = true;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
// At this point, the src file is sitting at the very
|
||
|
|
// beginning of its data chunks--so we can read from the src file...
|
||
|
|
goto MyRead;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
bCloseFile = true;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (bCloseFile)
|
||
|
|
{
|
||
|
|
mmioAscend(pmmioSrc->hmmioSrc, &(pmmioSrc->ckSrcRIFF), 0);
|
||
|
|
mmioClose(pmmioSrc->hmmioSrc, 0);
|
||
|
|
pmmioSrc->hmmioSrc = NULL;
|
||
|
|
return S_FALSE;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return S_OK;
|
||
|
|
|
||
|
|
}
|
||
|
|
return S_FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/*************************************************************************
|
||
|
|
|
||
|
|
Function: RecvAudioStream::OpenDestFile(void)
|
||
|
|
|
||
|
|
Purpose : Opens wav file to record audio data into.
|
||
|
|
|
||
|
|
Returns : HRESULT.
|
||
|
|
|
||
|
|
Params : None
|
||
|
|
|
||
|
|
Comments: * Registry keys:
|
||
|
|
\\HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Audio\RecordToFile\fRecordToFile
|
||
|
|
If set to zero, data will not be recorded into wav file.
|
||
|
|
If set to a non null value <= INT_MAX, data will be recorded into wav file.
|
||
|
|
\\HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Audio\RecordToFile\fRecordToFile
|
||
|
|
If set to zero, data will overwrite existing data if wav file already exists.
|
||
|
|
If set to a non null value <= INT_MAX, data will be recorded into wav file after existing data.
|
||
|
|
\\HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Audio\RecordToFile\szOutputFileName
|
||
|
|
Name of the wav file to record audio data into.
|
||
|
|
\\HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Audio\RecordToFile\lMaxTimeLength
|
||
|
|
If set to zero, there is no limit to the size of the wav file.
|
||
|
|
If set to a non null value <= INT_MAX, size of the file will be clamped to lMaxTimeLength.
|
||
|
|
\\HKEY_LOCAL_MACHINE\Software\Microsoft\Internet Audio\RecordToFile\cchIOBuffer
|
||
|
|
If set to zero, size of the MM IO buffer is set to its default value (8Kbytes).
|
||
|
|
If set to one, size of the MM IO buffer is set to match maximum size of the wav file.
|
||
|
|
If set a non null value between 2 and INT_MAX, size of the MM IO buffer is set to cchIOBuffer bytes.
|
||
|
|
|
||
|
|
History : Date Reason
|
||
|
|
06/02/96 Created - PhilF
|
||
|
|
|
||
|
|
*************************************************************************/
|
||
|
|
HRESULT AudioFile::OpenDestFile (MMIODEST *pDestFile, WAVEFORMATEX *pwf)
|
||
|
|
{
|
||
|
|
HRESULT hr = DPR_SUCCESS;
|
||
|
|
MMIOINFO mmioInfo;
|
||
|
|
DWORD dw;
|
||
|
|
long cchBuffer;
|
||
|
|
long lMaxTimeLength;
|
||
|
|
BOOL fAppend;
|
||
|
|
MMRESULT mmr;
|
||
|
|
|
||
|
|
FX_ENTRY ("RecvAudioStream::OpenDestFile")
|
||
|
|
|
||
|
|
RegEntry reIPhoneOutFile(szRegInternetPhone TEXT("\\") szRegInternetPhoneOutputFile,
|
||
|
|
HKEY_LOCAL_MACHINE,
|
||
|
|
FALSE,
|
||
|
|
KEY_READ);
|
||
|
|
|
||
|
|
// For now, get the file name from the registry
|
||
|
|
if (pDestFile->fRecordToFile = reIPhoneOutFile.GetNumberIniStyle(TEXT("fRecordToFile"), FALSE))
|
||
|
|
{
|
||
|
|
lstrcpyn(pDestFile->szOutputFileName,
|
||
|
|
reIPhoneOutFile.GetString(TEXT("szOutputFileName")),
|
||
|
|
CCHMAX(pDestFile->szOutputFileName));
|
||
|
|
cchBuffer = reIPhoneOutFile.GetNumberIniStyle(TEXT("cchIOBuffer"), 0L);
|
||
|
|
lMaxTimeLength = reIPhoneOutFile.GetNumberIniStyle(TEXT("lMaxTimeLength"), 0L);
|
||
|
|
#if 0
|
||
|
|
fAppend = reIPhoneOutFile.GetNumberIniStyle(TEXT("fAppend"), FALSE);
|
||
|
|
#else
|
||
|
|
fAppend = FALSE;
|
||
|
|
#endif
|
||
|
|
// Try to open the file for writing using buffered I/O
|
||
|
|
// If the size of the buffer is too large, try again
|
||
|
|
// with a buffer half that size.
|
||
|
|
// m_RecvFilter->GetProp(FM_PROP_DST_MEDIA_FORMAT, (PDWORD)&pwf);
|
||
|
|
|
||
|
|
if (!pwf)
|
||
|
|
goto MyLastExit;
|
||
|
|
pDestFile->dwMaxDataLength = lMaxTimeLength == 0L ? (DWORD)INT_MAX : (DWORD)(lMaxTimeLength * pwf->nSamplesPerSec * pwf->nBlockAlign / 1000L);
|
||
|
|
if ((cchBuffer == 0L) || (lMaxTimeLength == 0L))
|
||
|
|
cchBuffer = MMIO_DEFAULTBUFFER;
|
||
|
|
else
|
||
|
|
if (cchBuffer == 1L)
|
||
|
|
cchBuffer = (long)pDestFile->dwMaxDataLength;
|
||
|
|
ZeroMemory(&mmioInfo, sizeof(MMIOINFO));
|
||
|
|
if (!mmioOpen((LPSTR)&(pDestFile->szOutputFileName[0]), NULL, MMIO_EXIST))
|
||
|
|
fAppend = FALSE;
|
||
|
|
do
|
||
|
|
{
|
||
|
|
mmioInfo.cchBuffer = cchBuffer;
|
||
|
|
// pDestFile->hmmioDst = mmioOpen((LPSTR)&(pDestFile->szOutputFileName[0]), (LPMMIOINFO)&mmioInfo, MMIO_EXCLUSIVE | MMIO_ALLOCBUF | (fAppend ? MMIO_READWRITE : MMIO_WRITE | MMIO_CREATE));
|
||
|
|
pDestFile->hmmioDst = mmioOpen((LPSTR)&(pDestFile->szOutputFileName[0]), (LPMMIOINFO)&mmioInfo, MMIO_EXCLUSIVE | MMIO_ALLOCBUF | (fAppend ? MMIO_WRITE : MMIO_WRITE | MMIO_CREATE));
|
||
|
|
cchBuffer /= 2;
|
||
|
|
} while ((mmioInfo.wErrorRet == MMIOERR_OUTOFMEMORY) && (mmioInfo.cchBuffer > MMIO_DEFAULTBUFFER));
|
||
|
|
if (pDestFile->hmmioDst)
|
||
|
|
{
|
||
|
|
if (!fAppend)
|
||
|
|
{
|
||
|
|
// Create the RIFF chunk of form type 'WAVE'
|
||
|
|
pDestFile->ckDstRIFF.fccType = mmioFOURCC('W', 'A', 'V', 'E');
|
||
|
|
pDestFile->ckDstRIFF.cksize = 0L;
|
||
|
|
if (mmioCreateChunk(pDestFile->hmmioDst, &(pDestFile->ckDstRIFF), MMIO_CREATERIFF))
|
||
|
|
goto MyMMIOErrorExit3;
|
||
|
|
|
||
|
|
// Now create the destination fmt, fact, and data chunks _in that order_
|
||
|
|
pDestFile->ckDst.ckid = mmioFOURCC('f', 'm', 't', ' ');
|
||
|
|
pDestFile->ckDst.cksize = dw = SIZEOF_WAVEFORMATEX(pwf);
|
||
|
|
if (mmioCreateChunk(pDestFile->hmmioDst, &(pDestFile->ckDst), 0))
|
||
|
|
goto MyMMIOErrorExit2;
|
||
|
|
if (mmioWrite(pDestFile->hmmioDst, (HPSTR)pwf, dw) != (LONG)dw)
|
||
|
|
goto MyMMIOErrorExit1;
|
||
|
|
if (mmioAscend(pDestFile->hmmioDst, &(pDestFile->ckDst), 0))
|
||
|
|
goto MyMMIOErrorExit1;
|
||
|
|
|
||
|
|
// Create the 'fact' chunk.
|
||
|
|
// Since we are not writing any data to this file (yet), we set the
|
||
|
|
// samples contained in the file to 0.
|
||
|
|
pDestFile->ckDst.ckid = mmioFOURCC('f', 'a', 'c', 't');
|
||
|
|
pDestFile->ckDst.cksize = 0L;
|
||
|
|
if (mmioCreateChunk(pDestFile->hmmioDst, &(pDestFile->ckDst), 0))
|
||
|
|
goto MyMMIOErrorExit2;
|
||
|
|
pDestFile->dwDataLength = 0; // This will be updated when closing the file.
|
||
|
|
if (mmioWrite(pDestFile->hmmioDst, (HPSTR)&(pDestFile->dwDataLength), sizeof(long)) != sizeof(long))
|
||
|
|
goto MyMMIOErrorExit1;
|
||
|
|
if (mmioAscend(pDestFile->hmmioDst, &(pDestFile->ckDst), 0))
|
||
|
|
goto MyMMIOErrorExit1;
|
||
|
|
|
||
|
|
// Create the data chunk and stay descended
|
||
|
|
pDestFile->ckDst.ckid = mmioFOURCC('d', 'a', 't', 'a');
|
||
|
|
pDestFile->ckDst.cksize = 0L;
|
||
|
|
if (mmioCreateChunk(pDestFile->hmmioDst, &(pDestFile->ckDst), 0))
|
||
|
|
goto MyMMIOErrorExit2;
|
||
|
|
|
||
|
|
// At this point, the dst file is sitting at the very
|
||
|
|
// beginning of its data chunks--so we can write to the dst file...
|
||
|
|
goto MyLastExit;
|
||
|
|
|
||
|
|
MyMMIOErrorExit1:
|
||
|
|
mmioAscend(pDestFile->hmmioDst, &(pDestFile->ckDst), 0);
|
||
|
|
MyMMIOErrorExit2:
|
||
|
|
mmioAscend(pDestFile->hmmioDst, &(pDestFile->ckDstRIFF), 0);
|
||
|
|
MyMMIOErrorExit3:
|
||
|
|
mmioClose(pDestFile->hmmioDst, 0);
|
||
|
|
mmioOpen((LPSTR)&(pDestFile->szOutputFileName[0]), (LPMMIOINFO)&mmioInfo, MMIO_DELETE);
|
||
|
|
pDestFile->hmmioDst = NULL;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
// File already exists, only need to position pointer at the end of existing data.
|
||
|
|
// Locate a 'WAVE' form type in a 'RIFF' thing...
|
||
|
|
pDestFile->ckDstRIFF.fccType = mmioFOURCC('W', 'A', 'V', 'E');
|
||
|
|
if (mmr = mmioDescend(pDestFile->hmmioDst, (LPMMCKINFO)&(pDestFile->ckDstRIFF), NULL, MMIO_FINDRIFF))
|
||
|
|
goto MyOtherMMIOErrorExit3;
|
||
|
|
|
||
|
|
// We found a WAVE chunk--now go through and get all subchunks that we know how to deal with
|
||
|
|
while (mmr = mmioDescend(pDestFile->hmmioDst, &(pDestFile->ckDst), &(pDestFile->ckDstRIFF), 0) == 0)
|
||
|
|
{
|
||
|
|
// Quickly check for corrupt RIFF file--don't ascend past end!
|
||
|
|
if ((pDestFile->ckDst.dwDataOffset + pDestFile->ckDst.cksize) > (pDestFile->ckDstRIFF.dwDataOffset + pDestFile->ckDstRIFF.cksize))
|
||
|
|
goto MyOtherMMIOErrorExit1;
|
||
|
|
// Step up to prepare for next chunk..
|
||
|
|
mmr = mmioAscend(pDestFile->hmmioDst, &(pDestFile->ckDst), 0);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Go back to beginning of data portion of WAVE chunk
|
||
|
|
if (-1L == mmioSeek(pDestFile->hmmioDst, pDestFile->ckDstRIFF.dwDataOffset + sizeof(FOURCC), SEEK_SET))
|
||
|
|
goto MyOtherMMIOErrorExit2;
|
||
|
|
pDestFile->ckDst.ckid = mmioFOURCC('d', 'a', 't', 'a');
|
||
|
|
if (mmr = mmioDescend(pDestFile->hmmioDst, &(pDestFile->ckDst), &(pDestFile->ckDstRIFF), MMIO_FINDCHUNK))
|
||
|
|
goto MyOtherMMIOErrorExit2;
|
||
|
|
pDestFile->dwDataLength = pDestFile->ckDst.cksize;
|
||
|
|
if (-1L == (mmr = mmioSeek(pDestFile->hmmioDst, 0, SEEK_END)))
|
||
|
|
goto MyOtherMMIOErrorExit2;
|
||
|
|
|
||
|
|
// At this point, the dst file is sitting at the very
|
||
|
|
// end of its data chunks--so we can write to the dst file...
|
||
|
|
|
||
|
|
goto MyLastExit;
|
||
|
|
|
||
|
|
MyOtherMMIOErrorExit1:
|
||
|
|
mmioAscend(pDestFile->hmmioDst, &(pDestFile->ckDst), 0);
|
||
|
|
MyOtherMMIOErrorExit2:
|
||
|
|
mmioAscend(pDestFile->hmmioDst, &(pDestFile->ckDstRIFF), 0);
|
||
|
|
MyOtherMMIOErrorExit3:
|
||
|
|
mmioClose(pDestFile->hmmioDst, 0);
|
||
|
|
pDestFile->hmmioDst = NULL;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
MyLastExit:
|
||
|
|
return hr;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/*************************************************************************
|
||
|
|
|
||
|
|
Function: RecvAudioStream::CloseDestFile(void)
|
||
|
|
|
||
|
|
Purpose : Close wav file used to record audio data into.
|
||
|
|
|
||
|
|
Returns : HRESULT.
|
||
|
|
|
||
|
|
Params : None
|
||
|
|
|
||
|
|
Comments:
|
||
|
|
|
||
|
|
History : Date Reason
|
||
|
|
06/02/96 Created - PhilF
|
||
|
|
|
||
|
|
*************************************************************************/
|
||
|
|
HRESULT AudioFile::CloseDestFile (MMIODEST *pDestFile)
|
||
|
|
{
|
||
|
|
HRESULT hr = DPR_SUCCESS;
|
||
|
|
FX_ENTRY ("RecvAudioStream::CloseDestFile")
|
||
|
|
|
||
|
|
if (pDestFile->fRecordToFile && pDestFile->hmmioDst)
|
||
|
|
{
|
||
|
|
mmioAscend(pDestFile->hmmioDst, &(pDestFile->ckDst), 0);
|
||
|
|
mmioAscend(pDestFile->hmmioDst, &(pDestFile->ckDstRIFF), 0);
|
||
|
|
mmioClose(pDestFile->hmmioDst, 0);
|
||
|
|
pDestFile->hmmioDst = NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
return hr;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
HRESULT AudioFile::WriteDestFile(MMIODEST *pmmioDest, BYTE *pData, DWORD dwBytesToWrite)
|
||
|
|
{
|
||
|
|
MMRESULT mmr=MMSYSERR_NOERROR;
|
||
|
|
|
||
|
|
FX_ENTRY ("AudioFile::WriteToFile")
|
||
|
|
|
||
|
|
if ((pmmioDest->hmmioDst == NULL) || (dwBytesToWrite == 0))
|
||
|
|
{
|
||
|
|
return S_FALSE;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (mmioWrite(pmmioDest->hmmioDst, (char *) pData, dwBytesToWrite) != (long)dwBytesToWrite)
|
||
|
|
{
|
||
|
|
mmr = MMSYSERR_ERROR;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
pmmioDest->dwDataLength += dwBytesToWrite;
|
||
|
|
}
|
||
|
|
|
||
|
|
if ((pmmioDest->dwDataLength >= pmmioDest->dwMaxDataLength) ||
|
||
|
|
(mmr != MMSYSERR_NOERROR))
|
||
|
|
{
|
||
|
|
mmr = mmioAscend(pmmioDest->hmmioDst, &(pmmioDest->ckDst), 0);
|
||
|
|
mmr = mmioAscend(pmmioDest->hmmioDst, &(pmmioDest->ckDstRIFF), 0);
|
||
|
|
mmr = mmioClose(pmmioDest->hmmioDst, 0);
|
||
|
|
pmmioDest->hmmioDst = NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
return S_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
|