HRESULT CASFManager::SetFilePropertiesObject(FILE_PROPERTIES_OBJECT* fileinfo) { if (! m_pContentInfo) { return MF_E_NOT_INITIALIZED; } HRESULT hr = S_OK; IMFPresentationDescriptor *pPD = NULL; UINT32 cbBlobSize = 0; CHECK_HR( hr = m_pContentInfo->GeneratePresentationDescriptor(&pPD)); //get File ID hr = pPD->GetGUID(MF_PD_ASF_FILEPROPERTIES_FILE_ID, &fileinfo->guidFileID); // get Creation Time hr = pPD->GetBlob(MF_PD_ASF_FILEPROPERTIES_CREATION_TIME, (BYTE *)&fileinfo->ftCreationTime, sizeof(FILETIME), &cbBlobSize); //get Data Packets Count hr = pPD->GetUINT32(MF_PD_ASF_FILEPROPERTIES_PACKETS, &fileinfo->cbPackets); //get Play Duration hr = pPD->GetUINT64(MF_PD_ASF_FILEPROPERTIES_PLAY_DURATION, &fileinfo->cbPlayDuration); //get presentation duration hr = pPD->GetUINT64(MF_PD_DURATION, &fileinfo->cbPresentationDuration); //get Send Duration hr = pPD->GetUINT64(MF_PD_ASF_FILEPROPERTIES_SEND_DURATION, &fileinfo->cbSendDuration); //get preroll UINT64 msecspreroll = 0, hnspreroll =0; hr = pPD->GetUINT64(MF_PD_ASF_FILEPROPERTIES_PREROLL, &msecspreroll); hnspreroll = msecspreroll*10000; fileinfo->cbPreroll = hnspreroll; //get Flags hr = pPD->GetUINT32(MF_PD_ASF_FILEPROPERTIES_FLAGS, &fileinfo->cbFlags); //get Maximum Data Packet Size hr = pPD->GetUINT32(MF_PD_ASF_FILEPROPERTIES_MAX_PACKET_SIZE, &fileinfo->cbMaxPacketSize); //get Minimum Data Packet Size hr = pPD->GetUINT32(MF_PD_ASF_FILEPROPERTIES_MIN_PACKET_SIZE, &fileinfo->cbMinPacketSize); // get Maximum Bit rate hr = pPD->GetUINT32(MF_PD_ASF_FILEPROPERTIES_MAX_BITRATE, &fileinfo->cbMaxBitRate); this->m_fileinfo = fileinfo; TRACE((L"Read File Properties Object from the ASF Header Object.\n")); done: LOG_MSG_IF_FAILED(L"CASFManager::SetFilePropertiesObject failed.\n", hr); SAFE_RELEASE(pPD); return hr; }