OutputFile: make getProgressDuration method virtual

Valentin Noel · Valentin Noel · commit 8efd1f10b161 · 2014-12-03T15:37:07.000+01:00
diff --git a/src/AvTranscoder/file/OutputFile.hpp b/src/AvTranscoder/file/OutputFile.hpp
@@ -109,7 +109,7 @@ class AvExport OutputFile
 
 	virtual void setVerbose( bool verbose = false ){ _verbose = verbose; }
 	
-	double getProgressDuration();
+	virtual double getProgressDuration();
 
 private:
 	std::vector<AvOutputStream*> _outputStreams;
