smltime.cpp

linux下的一款播放器

    }
    else if(m_pSourceElement->m_nEndEventSourceTag == SMILEventSourceEnd)
    {
	if(pEventElement->m_bDurationSet)
	{
	    m_bDurationSet = TRUE;
	    m_pSourceElement->m_ulDuration = 
		pEventElement->m_pSourceElement->m_ulDuration +
		    pEventElement->m_pSourceElement->m_ulDelay;
	    m_pParser->insertTimelineElement(m_pID, 
		m_pSourceElement->m_ulDelay);
	}
    }
    //[SMIL 1.0 compliance] Fixes PR 16629; we need to set our duration
    // to the event element's end time plus the clock offset:
    else if(m_pSourceElement->m_nEndEventSourceTag == SMILEventSourceClock)
    {
	if(pEventElement->m_bDelaySet)
	{
	    m_bDurationSet = TRUE;
	    m_pSourceElement->m_ulDuration = 
		    pEventElement->m_pSourceElement->m_ulDelay +
		    m_pSourceElement->m_ulEndEventClockValue;
	    m_pParser->insertTimelineElement(m_pID, 
		m_pSourceElement->m_ulDelay);
	}
    }
}

#if 0
void
CSmil1TimelineElement::setEvent(SMILEventSourceTag eTag,
				SMILSyncAttributeTag aTag,
				const char* pEventSourceID,
				UINT32 ulEventClockValue)
{
    m_eEventSourceTag = eTag;
    m_eSyncAttributeTag = aTag;
    if(pEventSourceID)
    {
	m_pEventSourceID = new char[strlen(pEventSourceID)+1];
	strcpy(m_pEventSourceID, pEventSourceID); /* Flawfinder: ignore */
        if (m_pParser && m_pParser->m_pTimelineElementManager)
        {
            m_pParser->m_pTimelineElementManager->addNotification(pEventSourceID, this);
        }
    }
    m_ulEventClockValue = ulEventClockValue;
}
#endif


void 
CSmil1TimelineElement::addChild(CSmil1TimelineElement* pChild)
{
    if(!m_pChildren)
    {
	m_pChildren = new CHXSimpleList;
    }
    m_pChildren->AddTail(pChild);
    pChild->setParent(this);
}

UINT32
CSmil1TimelineElement::getDuration()
{
    return m_pSourceElement->m_ulDuration;
}

UINT32
CSmil1TimelineElement::getDelay()
{
    return m_pSourceElement->m_ulDelay;
}

void 
CSmil1TimelineElement::dump()
{
}


/*
 * CSmil1TimelinePar methods
 */

CSmil1TimelinePar::CSmil1TimelinePar(CSmil1Element* pSourceElement,
				   CSmil1Parser* pParser):
    CSmil1TimelineElement(pSourceElement, pParser),
    m_nDurationAdded(0),
    m_ulFirstDuration(0),
    m_ulLastDuration(0)
{
}

CSmil1TimelinePar::~CSmil1TimelinePar()
{
}

void 
CSmil1TimelinePar::setDelay(UINT32 ulDelay)
{
    if(m_pSourceElement->m_ulBeginOffset != (UINT32)-1)
    {
	m_pSourceElement->m_ulDelay = ulDelay + 
	    m_pSourceElement->m_ulBeginOffset;
    }
    else
    {
	m_pSourceElement->m_ulDelay = ulDelay;
    }
    if (!m_bDelayEvent) //[SMIL 1.0 compliance] helps fix PR 14420.
    {
	m_bDelaySet = TRUE;
	if(m_pChildren)
	{
	    CHXSimpleList::Iterator i = m_pChildren->Begin();
	    for(; i != m_pChildren->End(); ++i)
	    {
		CSmil1TimelineElement* pElement = (CSmil1TimelineElement*)(*i);
		pElement->setDelay(m_pSourceElement->m_ulDelay);
	    }
	}

	if (m_pSourceElement->m_ulDuration != (UINT32)-1)
	{
	    setDuration(m_pSourceElement->m_ulDuration);
	}
    }
    else //[SMIL 1.0 compliance] for PR 14420:
	// let's not claim that the delay is set when we still
	// are awaiting a delay (begin) event; we *do* need to
	// add the delay of this to the event's begin offset.
	// This is done by setting the new "m_bNonEventDelaySet"
	// variable to TRUE and leaving m_bDelaySet to FALSE
	// until the ElementResolved() call sets it to true:
    {
	//Parent calls setDelay before we get to ElementResolved,
	// thus m_bDelaySet should never be TRUE if we have a
	// delay event:
	HX_ASSERT(!m_bDelaySet);
	m_bNonEventDelaySet = TRUE; //ElementResolved will look at this.
    }
}

void
CSmil1TimelinePar::setDuration(UINT32 ulDuration, BOOL bSetFromParent)
{
    m_pSourceElement->m_ulDuration = ulDuration;
    m_bDurationSet = TRUE;
    if(m_pChildren)
    {
	CHXSimpleList::Iterator i = m_pChildren->Begin();
	for(; i != m_pChildren->End(); ++i)
	{
	    CSmil1TimelineElement* pElement = (CSmil1TimelineElement*)(*i);
	    pElement->setDuration(m_pSourceElement->m_ulDuration, TRUE);
        }
    }
    
    if(m_pDependent)
    {
	adjustDependentDuration(m_pDependent);
	m_pDependent->setDelay(m_pSourceElement->m_ulDelay + m_pSourceElement->m_ulDuration);
    }

    //[SMIL 1.0 comliance] Helps fix PR 14420 and 23025:
    if (m_pParser && m_pParser->m_pTimelineElementManager)
    {
        m_pParser->m_pTimelineElementManager->notify(m_pID);
    }
}

void
CSmil1TimelinePar::setMaxDuration(UINT32 ulMaxDuration)
{
    HX_ASSERT(m_pChildren);
    m_bMaxDurationSet = TRUE;
    m_pSourceElement->m_ulMaxDuration = ulMaxDuration;

    if (m_pChildren)
    {
	CHXSimpleList::Iterator i = m_pChildren->Begin();
	for(; i != m_pChildren->End(); ++i)
	{
	    CSmil1TimelineElement* pElement = (CSmil1TimelineElement*)(*i);
	    pElement->setMaxDuration(ulMaxDuration);
	}
    }
}

void 
CSmil1TimelinePar::adjustDependentDuration(CSmil1TimelineElement* pDependent)
{
    if (m_pParent)
    {
	m_pParent->adjustDependentDuration(pDependent);
    }

    return;
}

void 
CSmil1TimelinePar::addDuration(UINT32 ulDuration,
			      UINT32 ulDelay,
			      const char* pElementID)
{
    if(m_pSourceElement->m_ulDuration == (UINT32)-1)
    {
	m_pSourceElement->m_ulDuration = ulDuration;
	m_ulFirstDuration = ulDuration;
	m_ulLastDuration = ulDuration;
    }
    else
    {
	m_pSourceElement->m_ulDuration = 
	    (ulDuration > m_pSourceElement->m_ulDuration) ?
	    ulDuration : m_pSourceElement->m_ulDuration;
	if(ulDuration < m_ulFirstDuration)
	{
	    m_ulFirstDuration = ulDuration;
	}
	if(ulDuration > m_ulLastDuration)
	{
	    m_ulLastDuration = ulDuration;
	}
    }

    m_nDurationAdded++;
    if(m_nDurationAdded == m_pChildren->GetCount() &&
	!m_bDurationEvent)
    {
	if(m_pSourceElement->m_nEndsyncEventSourceTag == 
	    SMILEventSourceFirst)
	{
	    durationResolved(m_ulFirstDuration, TRUE);
	}
	else if(m_pSourceElement->m_nEndsyncEventSourceTag == 
	    SMILEventSourceLast)
	{
	    durationResolved(m_ulLastDuration, TRUE);
	}
	else
	{
	    durationResolved(m_pSourceElement->m_ulDuration, FALSE);
	}
    }
}

void
CSmil1TimelinePar::elementResolved(CSmil1TimelineElement* pEventElement)
{
//XXXEH: do we really want to check m_bDurationSet and m_bDelaySet...etc.
// first???? (as in old version)

//XXXEH: also, shouldn't we be making sure the pEventElement's id
// matches the m_[XXX]EventSourceID?  Otherwise, a begin event on one id
// and an end event on another may cause problems...

    //First, let's see if we have a begin event to resolve:
    if(m_pSourceElement->m_nBeginEventSourceTag == SMILEventSourceBegin)
    {
	if(pEventElement->m_bDelaySet)
	{
	    //[SMIL 1.0 Compliance] Helps fix 14420:
	    if (m_bNonEventDelaySet)
	    {
		//Add non-event delay to begin event delay:
		m_pSourceElement->m_ulDelay += 
		    pEventElement->m_pSourceElement->m_ulDelay;
	    }
	    else
	    {
		//Just set delay to event delay:
		m_pSourceElement->m_ulDelay = 
		    pEventElement->m_pSourceElement->m_ulDelay;

	    }
	    m_bNonEventDelaySet = m_bDelaySet = TRUE;
	    if(m_pChildren)
	    {
		CHXSimpleList::Iterator i = m_pChildren->Begin();
		for(; i != m_pChildren->End(); ++i)
		{
		    CSmil1TimelineElement* pElement =
			    (CSmil1TimelineElement*)(*i);
		    pElement->setDelay(m_pSourceElement->m_ulDelay);
		}
	    }
	}
    }
    else if(m_pSourceElement->m_nBeginEventSourceTag == SMILEventSourceEnd)
    {
	if(pEventElement->m_bDurationSet)
	{
	    //[SMIL 1.0 Compliance] Helps fix 14420:
	    if (m_bNonEventDelaySet)
	    {
		//Add non-event delay to begin event delay:
		m_pSourceElement->m_ulDelay += 
		    pEventElement->m_pSourceElement->m_ulDuration +
		    pEventElement->m_pSourceElement->m_ulDelay;
	    }
	    else
	    {
		//Just set delay to event delay:
		m_pSourceElement->m_ulDelay = 
		    pEventElement->m_pSourceElement->m_ulDuration +
		    pEventElement->m_pSourceElement->m_ulDelay;

	    }
	    m_bNonEventDelaySet = m_bDelaySet = TRUE;
	    if(m_pChildren)
	    {
		CHXSimpleList::Iterator i = m_pChildren->Begin();
		for(; i != m_pChildren->End(); ++i)
		{
		    CSmil1TimelineElement* pElement =
			    (CSmil1TimelineElement*)(*i);
		    pElement->setDelay(m_pSourceElement->m_ulDelay);
		}
	    }
	}
    }
    else if(m_pSourceElement->m_nBeginEventSourceTag == SMILEventSourceClock)
    {
	//We want event *BEGIN* plus clock therefor check for m_bDelaySet not
	// m_bDurationSet; after all, it's the eventElement's m_ulDelay
	// that's used, below:
	if(pEventElement->m_bDelaySet)
	{
	    if (m_bNonEventDelaySet)
	    {
		//Add non-event delay to begin event delay + clock val:
		m_pSourceElement->m_ulDelay += 
		    pEventElement->m_pSourceElement->m_ulDelay +
		    m_pSourceElement->m_ulBeginEventClockValue;
	    }
	    else
	    {
		//Just set delay to event delay:
		m_pSourceElement->m_ulDelay = 
		    pEventElement->m_pSourceElement->m_ulDelay +
		    m_pSourceElement->m_ulBeginEventClockValue;

	    }
	    m_bNonEventDelaySet = m_bDelaySet = TRUE;
	    if(m_pChildren)
	    {
		CHXSimpleList::Iterator i = m_pChildren->Begin();
		for(; i != m_pChildren->End(); ++i)
		{
		    CSmil1TimelineElement* pElement =
			    (CSmil1TimelineElement*)(*i);
		    pElement->setDelay(m_pSourceElement->m_ulDelay);
		}
	    }
	}
    }

    
//XXXEH: shouldn't we be making sure the pEventElement's id
// matches the m_[XXX]EventSourceID, otherwise a begin event on one id
// and an end event on another will cause problems.
#if defined(XXXEH_UNTESTED_AND_NOT_EXAMINED_WELL)
    if(m_pSourceElement->m_nEndEventSourceTag == SMILEventSourceBegin)
    {
	if(pEventElement->m_bDelaySet)
	{
	    durationResolved(pEventElement->m_pSourceElement->m_ulDelay,
		    TRUE);
	}
    }
    else if(m_pSourceElement->m_nEndEventSourceTag == SMILEventSourceEnd)
    {
	if(pEventElement->m_bDurationSet)
	{
	    durationResolved(pEventElement->getDuration(), TRUE);
	}
    }
    else if(m_pSourceElement->m_nEndEventSourceTag == SMILEventSourceClock)
    {
	if(pEventElement->m_bDelaySet)
	{
	    durationResolved(pEventElement->m_pSourceElement->m_ulDelay +
		    m_pSourceElement->m_ulEndEventClockValue, TRUE);
	}
    }
#endif // defined(XXXEH_UNTESTED_AND_NOT_EXAMINED_WELL).
    //[SMIL 1.0 compliance] Helps fix PR 32578:
    if (m_pSourceElement->m_nEndsyncEventSourceTag == SMILEventSourceID)
    {
	if(pEventElement->m_bDurationSet)
	{
	    durationResolved(pEventElement->getDuration(), TRUE);
	}
    }
}

void
CSmil1TimelinePar::durationResolved(UINT32 ulDuration, BOOL bUpdateChildren)
{
    if(!m_bDurationSet)
    {
	m_bDurationSet = TRUE;
	m_pSourceElement->m_ulDuration = ulDuration;
	if(m_pParent)
	{
	    m_pParent->addDuration(ulDuration, 
		m_pSourceElement->m_ulDelay, m_pID);
	}
	if(m_pDependent)
	{
	    //XXXEH- should "m_pSourceElement->m_ulDelay +" be removed, too?
	    // I can't get any content to hit this line so I'm not going to
	    // change it.  See fix for PR SMIL/13983:
	    adjustDependentDuration(m_pDependent);
	    m_pDependent->setDelay(m_pSourceElement->m_ulDelay +
		m_pSourceElement->m_ulDuration);	    
	}
	if(bUpdateChildren)
	{
	    CHXSimpleList::Iterator i = m_pChildren->Begin();
	    for(; i != m_pChildren->End(); ++i)
	    {
		CSmil1TimelineElement* pElement = (CSmil1TimelineElement*)(*i);
		pElement->setDuration(m_pSourceElement->m_ulDuration, TRUE);
	    }
	}
    }
}

#if 0
void 
CSmil1TimelinePar::setEndsync(EndsyncType eType,