Imediaobject::ProcessOutput() return error.
Hi,
I am developmenting an app that will invoke the interface of mp3 decoder DMO to render mp3 file on smartphone. While invoking Imediaobject::ProcessOutput() , there is an error, it return 0x8000FFFF(E_UNEXPECTED). But if I invoke Imediaobject::AllocateStreamingResources() before Imediaobject::ProcessInput() and Imediaobject::ProcessOutput(), Imediaobject::ProcessOutput() just return S_FALSE and pBufferStruct.dwStatus = 0x01000005. What is the reason? Is the allocated buffer too small? The size of buffer is from Imediaobject::GetInputSizeInfo() and GetOutputSizeInfo(). The following is my code:
hr = m_pObject->ProcessInput (0, m_pBuffer, DMO_INPUT_DATA_BUFFERF_TIMELENGTH, rtStart, rtStop - rtStart);
if (FAILED(hr))
{
DEBUGMSG(TRUE, (TEXT("ProcessInput() error!\n")));
goto Error;
}
//release input buffer
SAFE_RELEASE (m_pBuffer);
LONG outSize;
// retrieve the output data from DMO and put into pOut
if(S_FALSE == hr)
{
DEBUGMSG(TRUE, (TEXT("ProcessInput() return S_FALSE!\n")));
hr = E_FAIL;
goto Error;
}
else
{
hr = m_pObject->GetOutputSizeInfo (0, &dwSize, &dwAlign);
hr = CreateBuffer (dwSize, &pOutputBuffer);
if (FAILED(hr))
{
return hr;
}
dataBufferStruct.pBuffer = pOutputBuffer;
dataBufferStruct.dwStatus = 0; // No flag is set
dataBufferStruct.rtTimestamp = 0; // not used in ProcessOutput()
dataBufferStruct.rtTimelength = 0; // not used in ProcessOutput()
*pOutSize = dwSize;
*ppbOutData = new BYTE[dwSize];
if (*ppbOutData == 0)
{
return E_OUTOFMEMORY;
}
//process until no more data
if (SUCCEEDED(hr))
{
do
{
hr = m_pObject->ProcessOutput (DMO_PROCESS_OUTPUT_DISCARD_WHEN_NO_BUFFER, 1, &dataBufferStruct, &dwStatus );
/*if (FAILED(hr))
{
return hr;
}*/
// if (SUCCEEDED(hr) && (hr != S_FALSE))
// {
hr = dataBufferStruct.pBuffer->GetBufferAndLength(&pOut, &ulSize);
if (FAILED(hr))
{
return hr;
}
CopyMemory(*ppbOutData, pOut, dwSize);
hr = dataBufferStruct.pBuffer->SetLength( 0 );
// }
} while (dataBufferStruct.dwStatus & DMO_OUTPUT_DATA_BUFFERF_INCOMPLETE);
}
if (FAILED(hr))
{
DEBUGMSG(TRUE, (TEXT("ProcessOutputs() error!\n")));
goto Error;
}
}
