sm1doc.cpp

著名的 helix realplayer 基于手机 symbian 系统的 播放器全套源代码

    /* check for valid region constraints */
    BOOL bRegionError = FALSE;
    char errorBuf[256]; /* Flawfinder: ignore */
    //[SMIL 1.0 compliance] helps fix PR 24630; separate width & height logic
    if((!m_bRootLayoutWidthSet && 
	    (bLeftIsPercent  ||  bWidthIsPercent))  ||
	    (!m_bRootLayoutHeightSet && 
	    (bTopIsPercent  ||  bHeightIsPercent)) )
    {
	//XXXE: needs err msg: "Region can't use % without root-layout"
	rc = HXR_FAIL;
	SafeSprintf(errorBuf, 256, "region %s",
	    (const char*)pElement->m_pNode->m_id);
	CSmil1SMILSyntaxErrorHandler errHandler(m_pContext);
	errHandler.ReportError(SMILErrorBadAttribute, errorBuf, 0);
	return rc;
    }

    if(m_bRootLayoutWidthSet)
    {
	if(bLeftIsPercent)
	{
	    ulLeft = (UINT32)(((float)ulLeft/100.0) * m_ulRootLayoutWidth);
	}
	if(bWidthIsPercent)
	{
	    ulWidth = (UINT32)(((float)ulWidth/100.0) * m_ulRootLayoutWidth);
	}
    }
    if(m_bRootLayoutHeightSet)
    {
	if(bTopIsPercent)
	{
	    ulTop = (UINT32)(((float)ulTop/100.0) * m_ulRootLayoutHeight);
	}
	if(bHeightIsPercent)
	{
	    ulHeight = (UINT32)(((float)ulHeight/100.0) * m_ulRootLayoutHeight);
	}
    }

    if(m_ulNoRootLayoutHeight < (ulTop + ulHeight))
    {
	m_ulNoRootLayoutHeight = ulTop + ulHeight;
    }
    if(m_ulNoRootLayoutWidth < (ulLeft + ulWidth))
    {
	m_ulNoRootLayoutWidth =  ulLeft + ulWidth;
    }

    //[SMIL 1.0 compliance] Helps fix PR 16542:
    if(m_pSmilParser)
    {
	//If we're in full-compliance mode and someone enters a
	// width="0" or width="0%", we should leave it as 0.  We
	// know that they omitted width or height (which is returned as 0
	// from parseDimension), if the return value is HXR_FAIL:
	if (!ulWidth  &&  HXR_FAIL == rsltW)
	{
	    bWidthUnspecified = TRUE;
	}
	if (!ulHeight  &&  HXR_FAIL == rsltH)
	{
	    bHeightUnspecified = TRUE;
	}
    }

    pRect->left = ulLeft;
    pRect->top = ulTop;
    pRect->right = ulLeft + ulWidth;
    pRect->bottom = ulTop + ulHeight;

    return rc;
}

HX_RESULT
CSmil1DocumentRenderer::handleRegion(CSmil1Region* pElement)
{
    HX_RESULT rc = HXR_OK;

    HXxRect rect;
    rect.left = 0;
    rect.right = 0;
    rect.top = 0;
    rect.bottom = 0;

    BOOL bWidthUnspecified, bHeightUnspecified;

    if(HXR_OK != regionToRect(pElement, &rect,
	    //[SMIL 1.0 compliance] Helps fix PR 16542; these are passed
	    // by reference and set to TRUE if width or height (respectively)
	    // is not explicitly set:
	    bWidthUnspecified, bHeightUnspecified))
    {
	rc = HXR_FAIL;
    }
    else
    {
	CSmil1BasicRegion* pRegion = new CSmil1BasicRegion(pElement->m_pNode->m_id, rect, 
	    pElement->m_zIndex, pElement->m_fit, pElement->m_ulBgColor,
	    pElement->m_bBgColorSet, FALSE,
	    bWidthUnspecified, bHeightUnspecified);
	(*m_pRegionMap)[(const char*)pElement->m_pNode->m_id] = pRegion;
    }
    return rc;
}

HX_RESULT
CSmil1DocumentRenderer::handleRootLayout(CSmil1RootLayout* pElement)
{
    HX_RESULT rc = HXR_OK;

    m_bRootLayoutWidthSet = !pElement->m_bWidthUnspecified;
    m_bRootLayoutHeightSet = !pElement->m_bHeightUnspecified;
    m_ulRootLayoutHeight = pElement->m_ulHeight;
    m_ulRootLayoutWidth = pElement->m_ulWidth;
    m_ulRootLayoutBGColor = pElement->m_ulBgColor;

    return rc;
}

HX_RESULT
CSmil1DocumentRenderer::handleAddGroup(CSmil1AddGroup* pElement)
{
    HX_RESULT	rc = HXR_OK;

    if (m_bInRAM20 && !m_bLastGroupInRAM20 && m_ulGroupIndex)
    {
	return rc;
    }

    if(!m_pGroupMap)
    {
	m_pGroupMap = new CHXMapLongToObj;
    }

    IHXPlayer* pPlayer = m_pParent->getPlayer();
    IHXGroupManager* pMgr = 0;
    if(HXR_OK == pPlayer->QueryInterface(IID_IHXGroupManager, (void**)&pMgr))
    {
	IHXGroup* pGroup = NULL;
	IHXGroup2* pGroup2 = NULL;

	if (m_pParent->m_bUseNestedMeta && 0 == m_ulGroupIndex)
	{
	    if (m_bLastGroupInRAM20)
	    {
		rc = pMgr->CreateGroup(pGroup);
	    }
	    else
	    {
		HX_ASSERT(pMgr->GetGroupCount());
		rc = pMgr->GetCurrentGroup(m_uGroupIndexWithin);
		rc = pMgr->GetGroup(m_uGroupIndexWithin, pGroup);
	    }
	}
	else
	{
	    rc = pMgr->CreateGroup(pGroup);
	}

	if(HXR_OK == rc)	
	    // release pGroup when m_pGroupMap is destructed
	{
	    CHXHeader* pGroupValues = new CHXHeader;
	    pGroupValues->AddRef();

	    if(pElement->m_ulDuration != (UINT32)-1)
	    {
		pGroupValues->SetPropertyULONG32("duration", pElement->m_ulDuration);
	    }

	    pGroupValues->SetPropertyULONG32("total_tracks", pElement->m_nTotalTracks);
	    pGroupValues->SetPropertyULONG32("initial_tracks", pElement->m_nInitTracks);	   
	    pGroupValues->SetPropertyULONG32("PersistentComponentID", m_ulPersistentComponentID);
	    
	    if (m_bLastGroupInRAM20)
	    {
		pGroupValues->SetPropertyULONG32("LastGroupInRAM20", 1);
	    }

	    // copy all the node values to group values
	    IHXValues* pValues = pElement->m_pValues;
	    if(pValues)
	    {
		IHXBuffer* pBuf = NULL;
		const char* pName = NULL;
		HX_RESULT res = 
		    pValues->GetFirstPropertyCString(pName, pBuf);
		while(HXR_OK == res)
		{
		    pGroupValues->SetPropertyCString(pName, pBuf);

		    HX_RELEASE(pBuf);
		    res = pValues->GetNextPropertyCString(pName, pBuf);
		}
	    }

	    pGroup->SetGroupProperties(pGroupValues);

	    if (HXR_OK == pGroup->QueryInterface(IID_IHXGroup2, (void**)&pGroup2))
	    {
		pGroup2->SetPersistentComponentProperties(m_ulPersistentComponentID,
							  pGroupValues);
	    }
	    HX_RELEASE(pGroup2);
	    HX_RELEASE(pGroupValues);

	    if (m_pParent->m_bUseNestedMeta && 0 == m_ulGroupIndex)
	    {
		if (m_bLastGroupInRAM20)
		{
		    pMgr->AddGroup(pGroup);
		}
		else
		{
		    GroupAdded(m_uGroupIndexWithin, pGroup);
		}
	    }
	    else
	    {
		pMgr->AddGroup(pGroup);
	    }	    

	    m_ulTrackIndex = 0;
	    m_ulGroupIndex++;

	    (*m_pGroupMap)[pElement->m_nGroup] = pGroup;
	}
    }
    HX_RELEASE(pMgr);

    return rc;
}

void
CSmil1DocumentRenderer::setProperty(IHXValues* pValues, 
    const char* pName, const char* pValue)
{
    IHXBuffer* pBuf = 0;
    IHXCommonClassFactory* pFactory = m_pParent->getFactory();
    if(HXR_OK == pFactory->CreateInstance(CLSID_IHXBuffer,
    	    (void**)&pBuf))
    {
	pBuf->Set((BYTE*)pValue, strlen(pValue)+1);
	pValues->SetPropertyCString(pName, pBuf);
	pBuf->Release();
    }
}

HX_RESULT
CSmil1DocumentRenderer::convertURL(const char* pURL, CHXString& newURL)
{
    CHXURL urlObj(pURL);
    IHXValues* pHeader = urlObj.GetProperties();
    IHXBuffer* pBuffer = NULL;

    if(!pHeader)
    {
	return HXR_FAIL;
    }

    if(HXR_OK == pHeader->GetPropertyBuffer(PROPERTY_SCHEME, pBuffer))
    {
	// fully qualified URL
	newURL = pURL;
	HX_RELEASE(pBuffer);
    }
    else
    {
	// relative URL
	// if it starts with '/', make it relative to the root of 
	// the URL prefix

	if(*pURL == '/')
	{
	    newURL = m_pParent->getURLRoot() + pURL;
	}
	else if (strnicmp(pURL, URL_COMMAND, sizeof(URL_COMMAND) - 1) == 0)
	{
	    newURL = pURL;
	}
	else
	{
	    newURL = m_pParent->getURLPrefix() + pURL;
	}
    }

    HX_RELEASE(pHeader);
    return HXR_OK;
}

HX_RESULT
CSmil1DocumentRenderer::handleSource(CSmil1Source* pElement)
{
    HX_RESULT rc = HXR_OK;

    CHXString urlString;
    convertURL(pElement->m_src, urlString);

    if (!m_pRepeatIDMap)
    {
	m_pRepeatIDMap = new CHXMapStringToOb;
    }

    IHXGroup* pGroup = 0;
    if(m_pGroupMap && 
       m_pGroupMap->Lookup(pElement->m_pNode->m_nGroup, (void*&)pGroup))
    {
	IHXCommonClassFactory* pFactory = m_pParent->getFactory();
	IHXValues* pValues = 0;
	if(HXR_OK == pFactory->CreateInstance(CLSID_IHXValues,
		(void**)&pValues))
	{
	    pValues->SetPropertyULONG32("PersistentComponentID", m_ulPersistentComponentID);	   

	    setProperty(pValues, "url", urlString);
	    setProperty(pValues, "id", pElement->m_pNode->m_id);
	    setProperty(pValues, "repeatid", pElement->m_pNode->m_repeatid);
	    setProperty(pValues, "playto", pElement->m_region);
	    if(pElement->m_region.GetLength() > 0)
	    {
		// save original region name in track values
		setProperty(pValues, "region", pElement->m_region);
	    }
	    setProperty(pValues, "fill", pElement->m_fill);
	    setProperty(pValues, "track-hint", pElement->m_pNode->m_trackHint);

	    UINT32 ulDelay = 0;
	    if(pElement->m_ulDelay != (UINT32)-1)
	    {
		//if(pElement->m_ulBeginOffset != (UINT32)-1)
		//{
		//    pValues->SetPropertyULONG32("delay", pElement->m_ulDelay +
		//			    pElement->m_ulBeginOffset);
		//}
		//else
		//{
		    ulDelay = pElement->m_ulDelay + m_ulPersistentComponentDelay;
		//}
	    }
	    else
	    {
		ulDelay = m_ulPersistentComponentDelay;
	    }

	    if (ulDelay)
	    {
		pValues->SetPropertyULONG32("delay", ulDelay);
	    }

	    if(pElement->m_ulDuration != (UINT32)-1)
	    {
		pValues->SetPropertyULONG32("duration", pElement->m_ulDuration);
	    }
	    if(pElement->m_ulMaxDuration != (UINT32)-1)
	    {
		pValues->SetPropertyULONG32("maxduration", pElement->m_ulMaxDuration);
	    }
	    if(pElement->m_ulClipBegin != (UINT32)-1)
	    {
		pValues->SetPropertyULONG32("start", pElement->m_ulClipBegin);
	    }
	    if(pElement->m_ulClipEnd != (UINT32)-1)
	    {
		pValues->SetPropertyULONG32("end", pElement->m_ulClipEnd);
	    }

	    if (pElement->m_pNode->m_repeatTag !=
		RepeatUnknown)
	    {
		pValues->SetPropertyULONG32("repeatTag", pElement->m_pNode->m_repeatTag);
	    }

	    if (pElement->m_bIndefiniteDuration)
	    {
		pValues->SetPropertyULONG32("indefiniteduration", TRUE);
	    }
	    
	    // add arbitrary name-value pairs to track
	    if(pElement->m_pNode->m_pValues)
	    {
		IHXValues* pSrcValues = pElement->m_pNode->m_pValues;
		const char* pName = 0;
		IHXBuffer* pValue = 0;

		HX_RESULT rCode = pSrcValues->GetFirstPropertyCString(
		    pName, pValue);
		while(HXR_OK == rCode)
		{
		    // skip the values we already have or have overridden...
		    if((strcasecmp(pName, "url") != 0) &&
		       (strcasecmp(pName, "id") != 0) &&
		       (strcasecmp(pName, "playto") != 0) &&
		       (strcasecmp(pName, "fill") != 0))
		    {
			setProperty(pValues, pName, 
			    (const char*)pValue->GetBuffer());
		    }
		    HX_RELEASE(pValue);
		    rCode = pSrcValues->GetNextPropertyCString(
			pName, pValue);
		}
		HX_RELEASE(pValue);
	    }

#ifdef _DEBUG
	    // just resolve this puppy at the outset and send 
	    // to an output file
	    if(m_bShowDependencies)
	    {
		FILE* fp = fopen(SMILDEPFILE, "a");
		if(fp)
		{
		    fprintf(fp, "src %s url %s group %d delay %ld\n",
			(const char*)pElement->m_pNode->m_id, 
			(const char*)urlString,
			pElement->m_pNode->m_nGroup,
			(pElement->m_ulBeginOffset != (UINT32)-1) ?
			    pElement->m_ulDelay + pElement->m_ulBeginOffset :
			    pElement->m_ulDelay);
		    fclose(fp);
		}

		// determine duration resolution
		// NOTE - this will give lame results 
		// for values that exceed ulNominalDuration
		const UINT32 ulNominalDuration = 60000; // 1 min nominal
		UINT32 ulDuration = ulNominalDuration;

		if(pElement->m_ulClipEnd != (UINT32)-1)
		{
		    ulDuration = pElement->m_ulClipEnd;
		}
		if(pElement->m_ulDuration != (UINT32)-1)
		{
		    ulDuration = pElement->m_ulDuration;
		}
		if(pElement->m_ulBeginOffset != (UINT32)-1)
		{
		    ulDuration += pElement->m_ulBeginOffset;
		}
		if(pElement->m_ulEndOffset != (UINT32)-1)
		{
		    ulDuration -= pElement->m_ulEndOffset;
		}
		if(pElement->m_ulClipBegin != (UINT32)-1)
		{
		    ulDuration -= pElement->m_ulClipBegin;
		}

		m_pSmilParser->durationResolved(pElement->m_pNode->m_id, ulDuration);
	    }
	    else
	    {
#if defined(PRE_SHAZAM_SMIL_1_0_CODE)
		IHXGroup* pTempGroup = NULL;
		if (m_pRepeatIDMap->Lookup(pElement->m_pNode->m_repeatid, (void*&)pTempGroup))
		{
		    IHXGroup2* pTempGroup2 = NULL;

		    if (HXR_OK == pTempGroup->QueryInterface(IID_IHXGroup2, (void**)&pTempGroup2))
		    {
			pTempGroup2->AddRepeatTrack(pValues);
		    }
		    HX_RELEASE(pTempGroup2);
		}
		else
#else
		// /The following was added for SHAZAM since
		// IHXGroup2's AddRepeatTrack() has been deprecated
		// in favor of calling IHXTrack's AddTrack():
		BOOL bRepeatTrackHandled = FALSE;
		SMIL1PlayToAssoc*    pPlayToAssoc = NULL;
 		if(m_pPlayToAssocList)
		{
		    CHXSimpleList::Iterator i = m_pPlayToAssocList->Begin();
		    for ( ;i!=m_pPlayToAssocList->End()  &&  !bRepeatTrackHandled; ++i)
		    {