video loader begin

3 files changed, 42 insertions, 27 deletions

diff --git a/rotord/graph.cpp b/rotord/graph.cpp
index 7eeeec3..69c4811 100644
--- a/rotord/graph.cpp
+++ b/rotord/graph.cpp
@@ -9,6 +9,33 @@ const string Graph::toString(){
 	}
 	else return "";
 }
+vector<Node*> Graph::find_nodes(const string &type){
+	vector<Node*> found;
+	for (std::unordered_map<string,Node*>::iterator it=nodes.begin();it!=nodes.end();++it) {
+		if (it->second->type==type) found.push_back(it->second);
+	}
+	return found;
+};
+Node* Graph::find_node(const string &type){
+	for (std::unordered_map<string,Node*>::iterator it=nodes.begin();it!=nodes.end();++it) {
+		if (it->second->type==type) return it->second;
+	}
+	return nullptr; //can be tested against
+};
+bool Graph::signal_render(string &signal_xml,const float framerate) {
+	if (find_node("signal_output")) {
+		Signal_output *signal_output=dynamic_cast<Signal_output*>(find_node("signal_output"));
+		return signal_output->render(duration,framerate,signal_xml);
+	}
+	else return false;
+}
+bool Graph::video_render(const string &output_filename,const string &audio_filename,const float framerate) {
+	if (find_node("video_output")) {
+		Video_output *video_output=dynamic_cast<Video_output*>(find_node("video_output"));
+		return video_output->render(duration,framerate,output_filename,audio_filename);
+	}
+	else return false;
+}
 bool Graph::load(string &filename){
 	loaded=false;
 	printf("loading graph: %s\n",filename.c_str());
diff --git a/rotord/rendercontext.cpp b/rotord/rendercontext.cpp
index dfb9021..948ef31 100644
--- a/rotord/rendercontext.cpp
+++ b/rotord/rendercontext.cpp
@@ -411,4 +411,14 @@ bool Render_context::load_audio(const string &filename,vector<Base_audio_process
 	return true;
 }
 bool Render_context::load_video(string nodeID,string &filename){
+	//this is a good standard example of how to find 
+	//a node of a specific type by ID and do something
+	if (graph.nodes.find(nodeID)!=graph.nodes.end()){
+		if (graph.nodes[nodeID]->type=="video_input") {
+			if (((Video_input*)graph.nodes[nodeID])->load(filename)) {
+				return true;
+			}
+		}
+	}
+	return false;
 }
diff --git a/rotord/rotor.h b/rotord/rotor.h
index 55beb60..ef1ae23 100755
--- a/rotord/rotor.h
+++ b/rotord/rotor.h
@@ -425,6 +425,7 @@ namespace Rotor {
 				loader=new ofGstVideoUtils();
 			};
 			~Video_input(){ delete loader; };
+			bool load(const string &filename);
 			Image *get_output(const Frame_spec &frame){
 				return nullptr;
 			};
@@ -459,33 +460,10 @@ namespace Rotor {
 													//?? is it faster than using strings??
 			string description;
 			std::unordered_map<string,Node*> nodes;
-			vector<Node*> find_nodes(const string &type){
-				vector<Node*> found;
-				for (std::unordered_map<string,Node*>::iterator it=nodes.begin();it!=nodes.end();++it) {
-					if (it->second->type==type) found.push_back(it->second);
-				}
-				return found;
-			};
-			Node* find_node(const string &type){
-				for (std::unordered_map<string,Node*>::iterator it=nodes.begin();it!=nodes.end();++it) {
-					if (it->second->type==type) return it->second;
-				}
-				return nullptr; //can be tested against
-			};
-			bool signal_render(string &signal_xml,const float framerate) {
-				if (find_node("signal_output")) {
-					Signal_output *signal_output=dynamic_cast<Signal_output*>(find_node("signal_output"));
-					return signal_output->render(duration,framerate,signal_xml);
-				}
-				else return false;
-			}
-			bool video_render(const string &output_filename,const string &audio_filename,const float framerate) {
-				if (find_node("video_output")) {
-					Video_output *video_output=dynamic_cast<Video_output*>(find_node("video_output"));
-					return video_output->render(duration,framerate,output_filename,audio_filename);
-				}
-				else return false;
-			}
+			vector<Node*> find_nodes(const string &type);
+			Node* find_node(const string &type);
+			bool signal_render(string &signal_xml,const float framerate);
+			bool video_render(const string &output_filename,const string &audio_filename,const float framerate);
 			int load(Poco::UUID uid);
 			bool load(string &graph_filename);
 			UUID save();									//save to DB, returns UUID of saved graph