added samples type and duplicated video renderer

app/node/output/viewer/viewer.cpp

@@ -28,6 +28,10 @@ ViewerOutput::ViewerOutput() :
   texture_input_->add_data_input(NodeInput::kTexture);
   AddParameter(texture_input_);
 
+  samples_input_ = new NodeInput("samples_in");
+  samples_input_->add_data_input(NodeInput::kSamples);
+  AddParameter(samples_input_);
+
   length_input_ = new NodeInput("length_in");
   length_input_->add_data_input(NodeInput::kRational);
   AddParameter(length_input_);
@@ -70,6 +74,11 @@ NodeInput *ViewerOutput::texture_input()
   return texture_input_;
 }
 
+NodeInput *ViewerOutput::samples_input()
+{
+  return samples_input_;
+}
+
 NodeInput *ViewerOutput::length_input()
 {
   return length_input_;

app/node/output/viewer/viewer.h

@@ -44,9 +44,11 @@ public:
   void SetTimebase(const rational& timebase);
 
   NodeInput* texture_input();
+  NodeInput* samples_input();
   NodeInput* length_input();
 
   RenderTexturePtr GetTexture(const rational& time);
+  QByteArray GetSamples(const rational& in, const rational& out);
 
   virtual void InvalidateCache(const rational &start_range, const rational &end_range, NodeInput *from = nullptr) override;
 
@@ -70,6 +72,8 @@ protected:
 private:
   NodeInput* texture_input_;
 
+  NodeInput* samples_input_;
+
   NodeInput* length_input_;
 
   rational timebase_;