DASH: unroll and clarify

modules/stream_filter/dash/mpd/SegmentTimeline.cpp

@@ -57,16 +57,15 @@ void dash::mpd::SegmentTimeline::setTimescale(int timescale)
 void dash::mpd::SegmentTimeline::addElement(dash::mpd::SegmentTimeline::Element *e)
 {
     int64_t offset = 0;
-    for ( int i = 0; i <= e->r; ++i )
+
+    for ( int i = 0; i < e->r; ++i )
     {
         this->elements.push_back( e );
-        if ( i < e->r )
-        {
         e = new SegmentTimeline::Element( *e );
         offset += e->d;
         e->t += offset;
     }
-    }
+    this->elements.push_back( e );
 }
 
 const SegmentTimeline::Element*    SegmentTimeline::getElement( unsigned int index ) const