removed all dependence on NodeOutputs

If Nodes only have the one output, we don't need to do so much differentiation
between them. Previous iteration used outputs as like a distinct function
within a Node (e.g. length output would return one result, buffer output would
produce a different result - each run different code to produce their results).
Now in this iteration, it's more accurate to say a Node is just one function
(which seems more appropriate for a node system anyway).

app/node/input/media/audio/audio.cpp

@@ -2,8 +2,6 @@
 
 AudioInput::AudioInput()
 {
-  samples_output_ = new NodeOutput("samples_out");
-  AddParameter(samples_output_);
 }
 
 Node *AudioInput::copy() const
@@ -31,11 +29,6 @@ QString AudioInput::Description() const
   return tr("Import an audio footage stream.");
 }
 
-NodeOutput *AudioInput::samples_output()
-{
-  return samples_output_;
-}
-
 NodeValueTable AudioInput::Value(const NodeValueDatabase &value) const
 {
   return value[footage_input_];

app/node/input/media/audio/audio.h

@@ -15,13 +15,10 @@ public:
   virtual QString Category() const override;
   virtual QString Description() const override;
 
-  NodeOutput* samples_output();
-
 protected:
   virtual NodeValueTable Value(const NodeValueDatabase& value) const override;
 
 private:
-  NodeOutput* samples_output_;
 };
 
 #endif // AUDIOINPUT_H

app/node/input/media/video/video.cpp

@@ -13,9 +13,6 @@ VideoInput::VideoInput()
   matrix_input_ = new NodeInput("matrix_in");
   matrix_input_->set_data_type(NodeInput::kMatrix);
   AddParameter(matrix_input_);
-
-  texture_output_ = new NodeOutput("tex_out");
-  AddParameter(texture_output_);
 }
 
 Node *VideoInput::copy() const
@@ -53,27 +50,18 @@ NodeInput *VideoInput::matrix_input() const
   return matrix_input_;
 }
 
-NodeOutput *VideoInput::texture_output() const
+QString VideoInput::Code() const
 {
-  return texture_output_;
-}
-
-QString VideoInput::Code(NodeOutput *output) const
-{
-  if (output == texture_output()) {
-    return "#version 110\n"
-           "\n"
-           "varying vec2 v_texcoord;\n"
-           "\n"
-           "uniform sampler2D footage_in;\n"
-           "uniform mat4 matrix_in;\n"
-           "\n"
-           "void main(void) {\n"
-           "  gl_FragColor = texture2D(footage_in, vec2(vec4(v_texcoord, 0.0, 1.0) * matrix_in));\n"
-           "}\n";
-  }
-
-  return Node::Code(output);
+  return "#version 110\n"
+         "\n"
+         "varying vec2 v_texcoord;\n"
+         "\n"
+         "uniform sampler2D footage_in;\n"
+         "uniform mat4 matrix_in;\n"
+         "\n"
+         "void main(void) {\n"
+         "  gl_FragColor = texture2D(footage_in, vec2(vec4(v_texcoord, 0.0, 1.0) * matrix_in));\n"
+         "}\n";
 }
 
 /*

app/node/input/media/video/video.h

@@ -22,9 +22,7 @@ public:
 
   NodeInput* matrix_input() const;
 
-  NodeOutput* texture_output() const;
-
-  virtual QString Code(NodeOutput* output) const override;
+  virtual QString Code() const override;
 
   //virtual void Hash(QCryptographicHash *hash, NodeOutput* from, const rational &time) override;
 
@@ -33,8 +31,6 @@ protected:
 private:
   NodeInput* matrix_input_;
 
-  NodeOutput* texture_output_;
-
 };
 
 #endif // VIDEOINPUT_H