dash: Allow bps methods to be called from a IAdaptationLogic*

This is the interface we use in the module file.

modules/stream_filter/dash/adaptationlogic/AbstractAdaptationLogic.cpp

@@ -47,11 +47,11 @@ void AbstractAdaptationLogic::downloadRateChanged    (long bpsAvg, long bpsLastC
     this->bpsAvg        = bpsAvg;
     this->bpsLastChunk  = bpsLastChunk;
 }
-long AbstractAdaptationLogic::getBpsAvg              ()
+long AbstractAdaptationLogic::getBpsAvg              () const
 {
     return this->bpsAvg;
 }
-long AbstractAdaptationLogic::getBpsLastChunk        ()
+long AbstractAdaptationLogic::getBpsLastChunk        () const
 {
     return this->bpsLastChunk;
 }

modules/stream_filter/dash/adaptationlogic/AbstractAdaptationLogic.h

@@ -47,8 +47,8 @@ namespace dash
 
                 virtual void                downloadRateChanged     (long bpsAvg, long bpsLastChunk);
 
-                long                        getBpsAvg               ();
-                long                        getBpsLastChunk         ();
+                long                        getBpsAvg               () const;
+                long                        getBpsLastChunk         () const;
 
             private:
                 int                     bpsAvg;

modules/stream_filter/dash/adaptationlogic/IAdaptationLogic.h

@@ -46,7 +46,11 @@ namespace dash
                 };
 
                 virtual dash::http::Chunk*  getNextChunk() throw(dash::exception::EOFException) = 0;
-
+                /**
+                 *  \return     The average bitrate in Bytes per second.
+                 */
+                virtual long                    getBpsAvg               () const = 0;
+                virtual long                    getBpsLastChunk         () const = 0;
         };
     }
 }