AsfContentInfoBuilder::AsfContentInfoBuilder()
{
IPropertyStore* fileLevelEncodingConfiguration = nullptr;
HRESULT hr;
_mfAsfContentInfo = nullptr;
_mfAsfProfile = nullptr;
_mfMetadataProvider = nullptr;
_mfMetadata = nullptr;
do
{
if (!SUCCEEDED(hr = MFCreateASFContentInfo(&_mfAsfContentInfo)))
break;
if (!SUCCEEDED(hr = MFCreateASFProfile(&_mfAsfProfile)))
break;
if (!SUCCEEDED(hr = _mfAsfContentInfo->QueryInterface(IID_IMFMetadataProvider, (void**)&_mfMetadataProvider)))
break;
if (!SUCCEEDED(hr = _mfMetadataProvider->GetMFMetadata(NULL, 0, 0, &_mfMetadata)))
break;
// Set MFPKEY_ASFMEDIASINK_AUTOADJUST_BITRATE to true on the file-level encoding configuration
// property store. Does this actually do anything? Is it needed?
if (!SUCCEEDED(hr = _mfAsfContentInfo->GetEncodingConfigurationPropertyStore(0, &fileLevelEncodingConfiguration)))
break;
PROPVARIANT pv;
InitPropVariantFromBoolean(TRUE, &pv);
if (!SUCCEEDED(hr = fileLevelEncodingConfiguration->SetValue(MFPKEY_ASFMEDIASINK_AUTOADJUST_BITRATE, pv)))
break;
PropVariantClear(&pv);
} while (0);
if (fileLevelEncodingConfiguration) fileLevelEncodingConfiguration->Release();
if (FAILED(hr))
{
if (_mfMetadata) _mfMetadata->Release();
if (_mfMetadataProvider) _mfMetadataProvider->Release();
if (_mfAsfProfile) _mfAsfProfile->Release();
if (_mfAsfContentInfo) _mfAsfContentInfo->Release();
throw std::exception("Unable to create MediaSinkContentInfo object");
}
}
HRESULT CASFManager::CreateASFContentInfo (IMFByteStream *pContentByteStream,
IMFASFContentInfo **ppContentInfo)
{
if (!pContentByteStream || !ppContentInfo)
{
return E_INVALIDARG;
}
HRESULT hr = S_OK;
QWORD cbHeader = 0;
IMFASFContentInfo *pContentInfo = NULL;
IMFMediaBuffer *pBuffer = NULL;
// Create the ASF content information object.
CHECK_HR(hr = MFCreateASFContentInfo(&pContentInfo));
// Read the first 30 bytes to find the total header size.
CHECK_HR(hr = ReadDataIntoBuffer(
pContentByteStream, 0, MIN_ASF_HEADER_SIZE, &pBuffer));
CHECK_HR(hr = pContentInfo->GetHeaderSize(pBuffer, &cbHeader));
SAFE_RELEASE(pBuffer);
//Read the header into a buffer
CHECK_HR(hr = ReadDataIntoBuffer(
pContentByteStream, 0, (DWORD)cbHeader, &pBuffer));
// Pass the buffer for the header object.
CHECK_HR(hr = pContentInfo->ParseHeader(pBuffer, 0));
// Return the pointer to the caller.
*ppContentInfo = pContentInfo;
(*ppContentInfo)->AddRef();
TRACE((L"Created ContentInfo object.\n"));
done:
LOG_MSG_IF_FAILED(L"CASFManager::CreateASFContentInfo failed.\n", hr);
SAFE_RELEASE(pBuffer);
SAFE_RELEASE(pContentInfo);
return hr;
}
