BOOL TinyWavePlayer::Play(BOOL bLoop)
{
do
{
bPlaying = TRUE;
dwBlockOut = dwBlockNext = 0;
dwSizeL = waveFile.GetDataSize();
PlayData();//播放数据
if (waveOut.Restart() != MMSYSERR_NOERROR) return FALSE;
while (dwBlockOut > 0)
{
MSG msg = { 0 };
if (PeekMessage(&msg, 0, 0, 0, PM_NOREMOVE) && (msg.message == PLAY_QUIT))
{
//收到窗口退出消息
bPlaying = FALSE;
do
{
LoopEmpty();
} while (IsPlaying());
waveOut.Reset();
while (dwBlocks > 0)
{
--dwBlocks;
waveOut.Unprepare(audioBlockPtr[dwBlocks]);
LocalFree((LPBYTE)audioBlockPtr[dwBlocks]);
}
waveOut.Close();
waveFile.Close();
break;
}
}
} while (bLoop);
return TRUE;
}
void TinyWavePlayer::PlayDone(LPWAVEHDR wp, DWORD_PTR dwInstance)
{
if (wp->dwFlags & WHDR_DONE)
{
--dwBlockOut;
PlayData();
}
}
/**
*
* DigitalPlayback
* @param aNumSamples
* @param aFilename
* @param aDataType
* @result TVerdict
*
*/
TVerdict CTestStepSDevSoundPlayEOFPCM16::DigitalPlayback(TInt aNumSamples, TDesC& aFilename, TFourCC& aDataType)
{
TVerdict initializeOK = InitializeDevSound(aDataType, EMMFStatePlaying);
if (initializeOK != EPass)
{
return EInconclusive;
}
SetVolume(iMMFDevSound->MaxVolume());
//Get a buffer to fill
initializeOK = PlayInit();
if (initializeOK != EPass)
{
return EInconclusive;
}
TInt error = iFs.Connect();
if (error != KErrNone)
{
ERR_PRINTF2 (_L("Could not connect to Filesystem. Error is %d"), error);
return EInconclusive;
}
TInt err = iFile.Open(iFs, aFilename, EFileRead);
if (err != KErrNone)
{
ERR_PRINTF2 (_L("Could not open input file. Error is %d"), err);
return EInconclusive;
}
TInt bufferCount = 0;
if (aNumSamples < 0)
{// Play to EOF
while (initializeOK == KErrNone && iCallbackError == KErrNone)
{
//read sizeof buffer from file
CMMFDataBuffer* buffer = STATIC_CAST (CMMFDataBuffer*, iBuffer);
iFile.Read(buffer->Data());
if (buffer->Data().Length()!= buffer->RequestSize())
{
INFO_PRINTF3(_L("Data length copied from file = %d. Expected %d. Must be EOF"), buffer->Data().Length(), buffer->RequestSize());
iBuffer->SetLastBuffer(ETrue);
}
//DevSound Play
initializeOK = PlayData();
bufferCount ++;
}
}
else
{
while (bufferCount < aNumSamples && initializeOK == KErrNone && iCallbackError == KErrNone)
int audioEventPlayData(int eventId, int wParam, int lParam)
{
// printf("###play cb\n");
PlayData(((LPWAVEHDR)lParam)->dwUser);
return 0;
}
