I NEED HELP !! WriteSamples() eat memory!!

[jia yining]

Hello everybody!
   There is a quite simple demon down here, it just creates an AAF file ,and export DV25 essence. It all work very well until I open the task manager. I found that the memory and virtual memory grow continuous,at the end of the process ,it use 300MB memory in total. but after the pAAFfile->Close() is called ,all the memory is back .so I donn't think it's a memory leak, but it can cause a programme crash because of memory insufficient! The version of my AAF SDK is AAF-src-1.1.3 , anybody who can give me any idea is appreciated .

    HRESULT hr=AAFLoad("./AAFWinSDK/bin/AAFCOAPI.dll" );

    aafProductIdentification_t    m_ProductInfo;
    IAAFFile*                   m_pFile;
    IAAFHeader *                m_pHeader;
    IAAFDictionary *            m_pDictionary;
    IAAFClassDef *                m_pCDMasterMob;
    IAAFClassDef *              m_pCDCDCIDescriptor;
    IAAFDataDef    *                m_pPictureDef;

    m_ProductInfo.companyName = L"Sobey Corporation";
    m_ProductInfo.productName = L"Xpri NS 2.00";
    m_ProductInfo.productVersion = new aafProductVersion_t;
    m_ProductInfo.productVersion->major = PRODUCT_VERSION_MAJOR;
    m_ProductInfo.productVersion->minor = PRODUCT_VERSION_MINOR;
    m_ProductInfo.productVersion->patchLevel = PRODUCT_VERSION_DAILY;
    m_ProductInfo.productVersion->tertiary = PRODUCT_VERSION_BUILD;
#ifdef _DEBUG
    m_ProductInfo.productVersion->type = kAAFVersionDebug;
#else
    m_ProductInfo.productVersion->type = kAAFVersionReleased;
#endif
    m_ProductInfo.productVersionString = NULL;
    m_ProductInfo.productID.Data1 = PRODUCT_UUID.Data1;
    m_ProductInfo.productID.Data2 = PRODUCT_UUID.Data2;
    m_ProductInfo.productID.Data3 = PRODUCT_UUID.Data3;
    memcpy(m_ProductInfo.productID.Data4, PRODUCT_UUID.Data4, 8);
    m_ProductInfo.platform = L"Window XP";

    hr = (AAFFileOpenNewModify (L"./First Compostion.aaf", 0, &m_ProductInfo, &m_pFile));
    delete m_ProductInfo.productVersion;

    hr =(m_pFile->GetHeader(&m_pHeader));
    hr =(m_pHeader->GetDictionary(&m_pDictionary));

    hr = (m_pDictionary->LookupDataDef(kAAFDataDef_Picture, &m_pPictureDef));
    hr = (m_pDictionary->LookupClassDef(AUID_AAFCDCIDescriptor, &m_pCDCDCIDescriptor));
    hr = (m_pDictionary->LookupClassDef(AUID_AAFMasterMob, &m_pCDMasterMob));

    IAAFPluginManager    *mgr = NULL;

    // Load the plugin manager
    hr =(AAFGetPluginManager(&mgr));

    // Attempt load and register all of the plugins
    // in the shared plugin directory.
    hr = (mgr->RegisterSharedPlugins());

    IAAFMasterMob*     pMasterMob =NULL;
    IAAFMob*           pMob         =NULL;
    aafMobID_t                    masterMobID;
    aafRational_t                editRate = {25, 1};
    aafRational_t                stusampleRate = {25, 1};

    hr=m_pCDMasterMob->CreateInstance(IID_IAAFMasterMob,(IUnknown **)&pMasterMob);
    hr=pMasterMob->QueryInterface(IID_IAAFMob, (void **)&pMob);
    hr=pMob->GetMobID(&masterMobID);
    hr=pMob->SetName(L"A Master Mob");
    hr=m_pHeader->AddMob(pMob);

    IAAFEssenceAccess*                                pEssenceAccess;

    hr=pMasterMob->CreateEssence(1,
        m_pPictureDef,
        kAAFCodecCDCI,
        editRate,
        stusampleRate,
        kAAFCompressionDisable,
        NULL,
        ContainerAAF,
        &pEssenceAccess);

    hr = (pEssenceAccess->SetEssenceCodecFlavour(kAAFCodecFlavour_DV_Based_25Mbps_625_50));

    aafUInt32        samplesWritten, bytesWritten;
    LPBYTE pBuffer = new BYTE[144000];
    for(INT l=0;l<40000;l++)
    {
        hr =(pEssenceAccess->WriteSamples(1,   
            static_cast<aafUInt32>(144000), // buffer size
            pBuffer,    // THE data
            &samplesWritten,
            &bytesWritten));

    }

    hr = pEssenceAccess->CompleteWrite();

    if(pBuffer)
        delete[]  pBuffer;

    if(pEssenceAccess)
    {
        pEssenceAccess->Release();
        pEssenceAccess = NULL;
    }

    if(m_pPictureDef)
    {
        m_pPictureDef->Release();
        m_pPictureDef = NULL;
    }
    if(m_pCDMasterMob)
    {
        m_pCDMasterMob->Release();
        m_pCDMasterMob = NULL;
    }
    if(m_pCDCDCIDescriptor)
    {
        m_pCDCDCIDescriptor->Release();
        m_pCDCDCIDescriptor = NULL;
    }

    if(m_pHeader)
    {
        m_pHeader->Release();
        m_pHeader = NULL;
    }

    if(mgr)
    {
        mgr->Release();
        mgr = NULL;
    }
    if(m_pDictionary)
    {
        m_pDictionary->Release();
        m_pDictionary = NULL;
    }

    if(m_pFile)
    {
        m_pFile->Save();
        m_pFile->Close();//Here , all memory came back!!!
        m_pFile->Release();
    }

    AAFUnload();

[Stuart Cunningham]

Hello,

I can reproduce this problem on the Linux machine I have to hand.  For the 40,000 frames in the test I see memory usage steadily increase from about 14MB to start with to 120MB, increasing at a rate of 1MB per second which corresponds to 1MB for every 500 or so frames written (each frame being 144000 bytes).

A similar test can be run from test/com/ScaleTest of the AAF SDK.  The following arguments to ScaleTest will reproduce approximately the same steps:
  ScaleTest -c -d -n 40000

Here I also see a steadily increasing memory usage.

I will try to narrow down exactly where the memory increase is occurring.  This issue would certainly be a problem when writing AAF files containing big blobs of essence.

Regards,

Stuart Cunningham

[jia yining]

     Thanks, Mr Cunningham. In order to solve this problem ,I have to close my file everytime after one essencedata is finished exporting,just for getting my memory back. but it still a problem when we export large files. So it will be a great news if you
can solve this problems.
     Here now ,I have another question.
     Does AAF SDK version 1.1.3 which is the latest version I can get form aafassociation support DV50,Dv100,AVC50/100? I cann't find them form the sourcecode , Are they already on the schedule?