perscmgr.cpp

linux下的一款播放器

    {
	m_pSourceInfo->Reset();
    }

    return;
}

void
HXPersistentComponent::Reset(void)
{
    HXPersistentComponent* pHXPersistentComponent = NULL;
    CHXSimpleList::Iterator i;

    if (m_pPersistentChildList)
    {
	for(i = m_pPersistentChildList->Begin();i != m_pPersistentChildList->End();++i)
	{
	    pHXPersistentComponent = (HXPersistentComponent*)(*i);
	    pHXPersistentComponent->Reset();
	}
    }

    m_pComponentManager->m_pPlayer->m_pSourceMap->RemoveKey(m_pSourceInfo->m_pSource);
    m_pComponentManager->m_pPlayer->m_bSourceMapUpdated = TRUE;

    m_pSourceInfo->m_bIsPersistentSource = FALSE;
    m_pSourceInfo->Stop();

    m_bToBeClosed = TRUE;

    return;
}

void
HXPersistentComponent::Remove()
{
    HXPersistentComponent* pHXPersistentComponent = NULL;
    CHXSimpleList::Iterator i;

    if (m_pPersistentChildList)
    {
	for(i = m_pPersistentChildList->Begin();i != m_pPersistentChildList->End();++i)
	{
	    pHXPersistentComponent = (HXPersistentComponent*)(*i);
	    pHXPersistentComponent->Remove();
	    HX_RELEASE(pHXPersistentComponent);
	}
	m_pPersistentChildList->RemoveAll();
    }
    
    if (m_pSourceInfo)
    {
	HX_ASSERT(!m_pSourceInfo->m_bIsPersistentSource);
	m_pSourceInfo->CloseRenderers();
	HX_DELETE(m_pSourceInfo);
    }

    HX_RELEASE(m_pProperties);
    HX_RELEASE(m_pRendererAdviseSink);
    HX_RELEASE(m_pGroupSink);
    HX_RELEASE(m_pPersistentRenderer);

    return;
}

HXPersistentComponentManager::HXPersistentComponentManager(HXPlayer* pPlayer)
    : m_lRefCount(0)
    , m_ulComponentIndex(0)
    , m_nCurrentGroup(0)
    , m_pPlayer(pPlayer)
    , m_pRootPersistentComponent(NULL)
{
    HX_ADDREF(m_pPlayer);
}

HXPersistentComponentManager::~HXPersistentComponentManager(void)
{
    Close();

    HX_RELEASE(m_pPlayer);
}

/*
 *  IUnknown methods
 */
STDMETHODIMP HXPersistentComponentManager::QueryInterface(REFIID riid, void** ppvObj)
{
    QInterfaceList qiList[] =
        {
            { GET_IIDHANDLE(IID_IHXPersistentComponentManager), (IHXPersistentComponentManager*)this },
            { GET_IIDHANDLE(IID_IHXGroupSink), (IHXGroupSink*)this },
            { GET_IIDHANDLE(IID_IUnknown), (IUnknown*)(IHXPersistentComponentManager*)this },
        };
    
    return ::QIFind(qiList, QILISTSIZE(qiList), riid, ppvObj);
}

STDMETHODIMP_(ULONG32) HXPersistentComponentManager::AddRef()
{
    return InterlockedIncrement(&m_lRefCount);
}

STDMETHODIMP_(ULONG32) HXPersistentComponentManager::Release()
{
    if (InterlockedDecrement(&m_lRefCount) > 0)
    {
        return m_lRefCount;
    }

    delete this;
    return 0;
}

/************************************************************************
 *	Method:
 *	    IHXPersistentComponentManager::CreatePersistentComponent
 *	Purpose:
 *	    create persistent component
 */
STDMETHODIMP
HXPersistentComponentManager::CreatePersistentComponent(REF(IHXPersistentComponent*)   pPersistentComponent)
{
    pPersistentComponent = new HXPersistentComponent(this);    
    if (!pPersistentComponent)
    {
	return HXR_OUTOFMEMORY;
    }
    
    return HXR_OK;
}

/************************************************************************
 *	Method:
 *	    IHXPersistentComponentManager::AddPersistentComponent
 *	Purpose:
 *	    add persistent component
 */
STDMETHODIMP
HXPersistentComponentManager::AddPersistentComponent(IHXPersistentComponent*	pPersistentComponent)
{
    HX_RESULT			rc = HXR_OK;
    BOOL			bFound = FALSE;
    HXSource*			pSource = NULL;
    SourceInfo*			pSourceInfo = NULL;
    RendererInfo*		pRendInfo = NULL;
    HXPersistentComponent*	pHXPersistentComponent = NULL;
    HXPersistentComponent*	pHXPersistentParentComponent = NULL;
    IHXValues*			pProperties = NULL;
    IHXGroup*			pGroup = NULL;
    IHXPersistentComponent*	pPersistentParentComponent = NULL;
    IHXPersistentRenderer*	pPersistentRenderer = NULL;
    IHXRenderer*		pRenderer = NULL;    
    CHXMapPtrToPtr::Iterator ndxSource;
    CHXMapLongToObj::Iterator ndxRend;
    
    pHXPersistentComponent = (HXPersistentComponent*)pPersistentComponent;
    if (!pHXPersistentComponent || !pHXPersistentComponent->m_bInitialized)
    {
	rc = HXR_FAILED;
	goto cleanup;
    }

    pPersistentRenderer = pHXPersistentComponent->m_pPersistentRenderer;
    if (HXR_OK != pPersistentRenderer->QueryInterface(IID_IHXRenderer, (void**)&pRenderer))
    {
	rc = HXR_INVALID_PARAMETER;
	goto cleanup;
    }

    // find component's source info - better way?
    ndxSource = m_pPlayer->m_pSourceMap->Begin();
    for (; ndxSource != m_pPlayer->m_pSourceMap->End() && !bFound; ++ndxSource)
    {
	pSourceInfo = (SourceInfo*)(*ndxSource);
	pSource = pSourceInfo->m_pSource;

	ndxRend = pSourceInfo->m_pRendererMap->Begin();
	for (; ndxRend != pSourceInfo->m_pRendererMap->End(); ++ndxRend)
	{
	    pRendInfo = (RendererInfo*) (*ndxRend);
	    if (pRendInfo->m_pRenderer == pRenderer)
	    {
		bFound = TRUE;
		break;
	    }
	}
    }

    if (!bFound)
    {
	rc = HXR_FAILED;
	goto cleanup;
    }

    if (!m_pRootPersistentComponent)
    {
	m_ulComponentIndex = 0;
	m_pRootPersistentComponent = pHXPersistentComponent;
	m_pRootPersistentComponent->AddRef();

	// XXX HP TBD - when we support timing attributes on a SMIL URL
	// for now, we resets all timing attributes on the root persistent
	// component since there could be a case when the same timing values
	// are specified in a CGI URL sent to the player
	if (pSourceInfo && pSourceInfo->m_pSource)
	{	    
	    IHXValues* pValues = new CHXHeader();
	    pValues->AddRef();

	    pValues->SetPropertyULONG32("Start", 0);
	    pValues->SetPropertyULONG32("End", 0);
	    pValues->SetPropertyULONG32("Delay", 0);
	    pValues->SetPropertyULONG32("Duration", 0);

	    pSourceInfo->m_pSource->UpdatePlayTimes(pValues);
	    HX_RELEASE(pValues);
	}	    
    }
    else if (HXR_OK == GetPersistentComponent(pSourceInfo->m_ulPersistentComponentID, pPersistentParentComponent))
    {
	pHXPersistentParentComponent = (HXPersistentComponent*)pPersistentParentComponent;

	// XXX HP 
	// to workaround the screwed-up layout handling within nested meta, we call
	// CleanupLayout() on the alternated persistent source if we haven't called 
	// CleanupLayout() yet. this is a no-worse-than-before temporary solution.
	// REMOVE THIS AFTER PROPERLY HANDLING LAYOUT WITHIN NESTED META
	if (pSourceInfo->m_bAltURL && !pHXPersistentParentComponent->m_bCleanupLayoutCalled)
	{
	    m_pPlayer->CleanupLayout();
	    pHXPersistentParentComponent->m_bCleanupLayoutCalled = TRUE;
	}

	if (!pHXPersistentParentComponent->m_pPersistentChildList)
	{
	    pHXPersistentParentComponent->m_pPersistentChildList = new CHXSimpleList();
	}
    
	pHXPersistentParentComponent->m_pPersistentChildList->AddTail(pHXPersistentComponent);
	pHXPersistentComponent->AddRef();

	pHXPersistentComponent->m_pPersistentParent = pHXPersistentParentComponent;
	pHXPersistentParentComponent->AddRef();
    }

    pSourceInfo->m_bIsPersistentSource = TRUE;

    if (HXR_OK == pHXPersistentComponent->m_pPersistentRenderer->GetPersistentProperties(pProperties))
    {
	pProperties->GetPropertyULONG32("PersistentType", pHXPersistentComponent->m_ulPersistentType);
    }
    HX_RELEASE(pProperties);

    pSourceInfo->m_ulPersistentComponentSelfID = m_ulComponentIndex;

    // new persistent info	
    pHXPersistentComponent->m_pSourceInfo = pSourceInfo;
    pHXPersistentComponent->m_ulComponentID = m_ulComponentIndex;

    // get the persistent properties(track properties)
    if (HXR_OK == m_pPlayer->m_pGroupManager->GetGroup(pSourceInfo->m_uGroupID, pGroup))
    {
	pGroup->GetTrack(pSourceInfo->m_uTrackID, pHXPersistentComponent->m_pProperties);
    }
    HX_RELEASE(pGroup);

    pPersistentRenderer->InitPersistent(m_ulComponentIndex, 
					pSourceInfo->m_uGroupID,
					pSourceInfo->m_uTrackID,
					pHXPersistentParentComponent?pHXPersistentParentComponent->m_pPersistentRenderer:((IHXPersistentRenderer*) NULL));
    m_ulComponentIndex++;

    m_pPlayer->m_pGroupManager->PersistentComponentAdded(pSourceInfo->m_uGroupID, pSourceInfo->m_uTrackID);	

cleanup:

    HX_RELEASE(pPersistentParentComponent);
    HX_RELEASE(pRenderer);

    return rc;
}

/************************************************************************
 *	Method:
 *	    IHXPersistentComponentManager::RemovePersistentComponent
 *	Purpose:
 *	    remove persistent component
 */
STDMETHODIMP
HXPersistentComponentManager::RemovePersistentComponent(UINT32 ulPersistentComponentID)
{
    HX_RESULT			rc = HXR_OK;
    LISTPOSITION		lPosition = NULL;
    HXPersistentComponent*	pHXPersistentParentComponent = NULL;
    HXPersistentComponent*	pHXPersistentComponent = NULL;
    IHXPersistentComponent*	pPersistentComponent = NULL;

    if (HXR_OK == GetPersistentComponent(ulPersistentComponentID, pPersistentComponent))
    {
	pHXPersistentComponent = (HXPersistentComponent*)pPersistentComponent;
	pHXPersistentParentComponent = pHXPersistentComponent->m_pPersistentParent;

	if (pHXPersistentParentComponent)
	{
	    pHXPersistentComponent->Remove();

	    HX_ASSERT(pHXPersistentParentComponent->m_pPersistentChildList &&
		      pHXPersistentParentComponent->m_pPersistentChildList->GetCount());

	    lPosition = pHXPersistentParentComponent->m_pPersistentChildList->Find(pHXPersistentComponent);
	    HX_ASSERT(lPosition);

	    pHXPersistentParentComponent->m_pPersistentChildList->RemoveAt(lPosition);
	    HX_RELEASE(pHXPersistentComponent);
	}
    }
    HX_RELEASE(pPersistentComponent);

    if (m_pRootPersistentComponent  &&
	m_pRootPersistentComponent->m_ulComponentID == ulPersistentComponentID)
    {
	HX_RELEASE(m_pRootPersistentComponent);
    }

    return rc;
}

/************************************************************************
 *	Method:
 *	    IHXPersistentComponentManager::GetPersistentComponent
 *	Purpose:
 *	    get persistent component information
 */
STDMETHODIMP
HXPersistentComponentManager::GetPersistentComponent(UINT32			    ulPersistentComponentID,
						      REF(IHXPersistentComponent*) pPersistentComponent)
{
    HX_RESULT	rc = HXR_FAILED;

    pPersistentComponent = NULL;

    if (m_pRootPersistentComponent)
    {
	rc = m_pRootPersistentComponent->GetPersistentComponent(ulPersistentComponentID, pPersistentComponent);
    }

    return rc;
}

/************************************************************************
 *	Method:
 *	    IHXPersistentComponentManager::AttachPersistentComponentLayout
 *	Purpose:
 *	    get persistent component information
 */
STDMETHODIMP
HXPersistentComponentManager::AttachPersistentComponentLayout(IUnknown*    pLSG,
							       IHXValues*  pProps)
{
    HX_RESULT	    rc = HXR_OK;
    IHXSiteUser*   pSiteUser = NULL;

    if (m_pPlayer)
    {
#if defined(HELIX_FEATURE_VIDEO)
        if (HXR_OK == pLSG->QueryInterface(IID_IHXSiteUser, (void**)&pSiteUser))
	{
	    rc = m_pPlayer->m_pSiteManager->HookupSingleSiteByPlayToFrom(pSiteUser, pProps, FALSE);
	}
	HX_RELEASE(pSiteUser);
#endif //HELIX_FEATURE_VIDEO
    }

    return rc;
}

/************************************************************************
*  Method:
*      IHXGroupSink::GroupAdded
*  Purpose:
*		Notification of a new group being added to the presentation.
*/
STDMETHODIMP
HXPersistentComponentManager::GroupAdded(UINT16	/*IN*/ uGroupIndex,
					  IHXGroup*	/*IN*/ pGroup)
{
    HX_RESULT			rc = HXR_OK;
    UINT32			ulPersistentComponentID = 0;
    IHXValues*			pProperties = NULL;
    IHXGroupSink*		pGroupSink = NULL;
    IHXPersistentComponent*	pPersistentComponent = NULL;