demux: adaptative: enforce timeline timescale

modules/demux/adaptative/playlist/SegmentTimeline.cpp

@@ -32,6 +32,12 @@ SegmentTimeline::SegmentTimeline(TimescaleAble *parent)
 {
 }
 
+SegmentTimeline::SegmentTimeline(uint64_t scale)
+    :TimescaleAble(NULL)
+{
+    timescale.Set(scale);
+}
+
 SegmentTimeline::~SegmentTimeline()
 {
     std::list<Element *>::iterator it;

modules/demux/adaptative/playlist/SegmentTimeline.h

@@ -41,7 +41,8 @@ namespace adaptative
             class Element;
 
             public:
-                SegmentTimeline(TimescaleAble * = NULL);
+                SegmentTimeline(TimescaleAble *);
+                SegmentTimeline(uint64_t);
                 virtual ~SegmentTimeline();
                 void addElement(uint64_t, stime_t d, uint64_t r = 0, stime_t t = 0);
                 uint64_t getElementNumberByScaledPlaybackTime(stime_t) const;