/* Returns wanted segment, or next in sequence if not found */
ISegment * SegmentInformation::getNextSegment(SegmentInfoType type, uint64_t i_pos,
uint64_t *pi_newpos, bool *pb_gap) const
{
*pb_gap = false;
*pi_newpos = i_pos;
if( type != INFOTYPE_MEDIA )
return NULL;
std::vector<ISegment *> retSegments;
const size_t size = getSegments( type, retSegments );
if( size )
{
std::vector<ISegment *>::const_iterator it;
for(it = retSegments.begin(); it != retSegments.end(); ++it)
{
ISegment *seg = *it;
if(seg->isTemplate()) /* we don't care about seq number */
{
/* Check if we don't exceed timeline */
MediaSegmentTemplate *templ = dynamic_cast<MediaSegmentTemplate*>(retSegments[0]);
SegmentTimeline *timeline = (templ) ? templ->segmentTimeline.Get() : NULL;
if(timeline)
{
*pi_newpos = std::max(timeline->minElementNumber(), i_pos);
if(timeline->maxElementNumber() < i_pos)
return NULL;
}
else
{
*pi_newpos = i_pos;
/* start number */
*pi_newpos = std::max((uint64_t)templ->startNumber.Get(), i_pos);
}
return seg;
}
else if(seg->getSequenceNumber() >= i_pos)
{
*pi_newpos = seg->getSequenceNumber();
*pb_gap = (*pi_newpos != i_pos);
return seg;
}
}
}
return NULL;
}
uint64_t SegmentInformation::getLiveStartSegmentNumber(uint64_t def) const
{
if( mediaSegmentTemplate )
{
SegmentTimeline *timeline = mediaSegmentTemplate->segmentTimeline.Get();
if(timeline)
{
const uint64_t start = timeline->minElementNumber();
const uint64_t end = timeline->maxElementNumber();
if(end > 2 && (end - start >= 2))
return end - 2;
else
return start;
}
return mediaSegmentTemplate->startNumber.Get();
}
else if ( segmentList && !segmentList->getSegments().empty() )
{
const std::vector<ISegment *> list = segmentList->getSegments();
if(list.size() > 3)
return list.at(list.size() - 3)->getSequenceNumber();
else if(!list.empty())
return list.front()->getSequenceNumber();
else
return segmentList->getStartIndex();
}
else if( segmentBase )
{
const std::vector<ISegment *> list = segmentBase->subSegments();
if(list.size() > 3)
return list.at(list.size() - 3)->getSequenceNumber();
else if(!list.empty())
return list.front()->getSequenceNumber();
else
return segmentBase->getSequenceNumber();
}
if(parent)
return parent->getLiveStartSegmentNumber(def);
else
return def;
}