From 834835c99dd9fd182ca3116b5bc3e7ae8b3815ad Mon Sep 17 00:00:00 2001
From: Tim Redfern <tim@eclectronics.org>
Date: Thu, 31 Oct 2013 12:57:59 +0000
Subject: thumbnail stills and svgs

---
 rotord/src/graph.h                  | 38 ++++++++++++++++++++++++++++++++++++-
 rotord/src/nodes_audio_analysis.cpp |  2 +-
 rotord/src/nodes_drawing.h          |  7 +++++--
 rotord/src/rotor.h                  |  1 +
 4 files changed, 44 insertions(+), 4 deletions(-)

(limited to 'rotord/src')

diff --git a/rotord/src/graph.h b/rotord/src/graph.h
index 6f2ee79..2f8843d 100644
--- a/rotord/src/graph.h
+++ b/rotord/src/graph.h
@@ -97,6 +97,43 @@ namespace Rotor {
 	class Thumbnailer{
 		public:
 			bool make(const string &inputfilename,int w,int h,const string &outputfilename) {
+				Poco::StringTokenizer t1(inputfilename,".");
+				if (t1.count()>1) {
+					if (t1[t1.count()-1]=="svg"){
+						cerr<<"found an svg"<<endl;
+						RsvgHandle * rsvg=rsvg_handle_new_from_file(inputfilename.c_str(),nullptr);
+						if (rsvg) {
+							RsvgDimensionData dims;
+							rsvg_handle_get_dimensions(rsvg,&dims);
+							cerr<<"Rotor: SVG loaded "<<inputfilename<<" , "<<dims.width<<"x"<<dims.height<<endl;
+							cv::Mat cp=cv::Mat(h,w,CV_8UC4);
+							cv::Mat co=cv::Mat(h,w,CV_8UC3);
+						    cairo_surface_t * cs = cairo_image_surface_create_for_data (cp.data,
+			                                                         CAIRO_FORMAT_RGB24,
+			                                                         w,
+			                                                         h,
+			                                                         w*4);
+						    cairo_t * cr = cairo_create (cs);
+						    cairo_translate(cr, w/2, h/2);
+						    cairo_scale(cr, ((float)w)/640.0f,((float)w)/640.0f);
+						    cairo_translate(cr, -w/2, -h/2);
+						    cairo_translate(cr, w/2-(dims.width/2), h/2-(dims.height/2));
+							rsvg_handle_render_cairo(rsvg,cr);
+							cv::cvtColor(cp,co,CV_RGBA2BGR,3);
+							cv::imwrite(outputfilename.c_str(),co);
+							cairo_destroy(cr);
+							cairo_surface_destroy(cs);
+							rsvg_handle_close(rsvg,nullptr);
+							g_object_unref(rsvg);
+							return true;
+						}
+						else {
+							cerr<<"Rotor: SVG failed to load "<<inputfilename<<endl;
+							return false;
+						}
+					}
+				}
+				//if not svg feed to FFMS2
 				if (player.open(inputfilename)){
 					if (player.fetch_frame(w,h,player.get_number_frames()/4)) {
 						Image i;
@@ -105,7 +142,6 @@ namespace Rotor {
 						cvtColor(i.rgb,cp,CV_RGB2BGR);
 						cv::imwrite(outputfilename.c_str(),cp);
 						return true;
-
 					}
 				}
 				return false;
diff --git a/rotord/src/nodes_audio_analysis.cpp b/rotord/src/nodes_audio_analysis.cpp
index 5318bb1..a2a9c63 100644
--- a/rotord/src/nodes_audio_analysis.cpp
+++ b/rotord/src/nodes_audio_analysis.cpp
@@ -122,7 +122,6 @@ namespace Rotor{
 		cerr<<analysers["segmenter"].features.size()<<" segments"<<endl;
 		cerr<<analysers["tempo"].features.size()<<" tempo features"<<endl;
 		cerr<<analysers["intensity"].features.size()<<" intensity features"<<endl;
-		auto g=++analysers["segmenter"].features.begin();
 		int i=0;
 		float min_tempo=9999999.0f;
 		float min_intensity=9999999.0f;
@@ -131,6 +130,7 @@ namespace Rotor{
 		vector<float> tempos;
 		vector<float> intensities;
 		vector<float> times;
+		auto g=++analysers["segmenter"].features.begin();
 		for (auto f=analysers["segmenter"].features.begin();g!=analysers["segmenter"].features.end();f++,g++,i++){
 			cerr<<"segment "<<i<<": "<<f->first<<" to "<<g->first<<endl;
 			times.push_back(f->first);
diff --git a/rotord/src/nodes_drawing.h b/rotord/src/nodes_drawing.h
index b26841e..1bd6375 100644
--- a/rotord/src/nodes_drawing.h
+++ b/rotord/src/nodes_drawing.h
@@ -3,7 +3,6 @@
 
 #include "rotor.h"
 #include <cairo.h>
-#include <rsvg.h>
 
 namespace Rotor {
 	class Draw_node: public Image_node {
@@ -217,6 +216,7 @@ namespace Rotor {
 	};
 	class Svg: public Draw_node {
 		public:
+			//rsvg should be cleanup?
 			Svg(){
 				title="SVG";
 				description="Draws svg files";
@@ -238,7 +238,10 @@ namespace Rotor {
 				}
 				else cerr<<"Rotor: SVG failed to load "<<attributes["filename"]->value<<endl;
 			};
-			~Svg(){};
+			~Svg(){
+				rsvg_handle_close(rsvg,nullptr);
+				g_object_unref(rsvg);
+			};
 			Svg* clone(map<string,string> &_settings) { return new Svg(_settings);};
 			void vector_output(cairo_t * cr,const Frame_spec &frame){
 				//to make it resolution independent
diff --git a/rotord/src/rotor.h b/rotord/src/rotor.h
index f179efd..50ae266 100644
--- a/rotord/src/rotor.h
+++ b/rotord/src/rotor.h
@@ -75,6 +75,7 @@ Requirements
 #include <iostream>
 
 #include <json/json.h>
+#include <rsvg.h>
 
 #include "Poco/Net/HTTPResponse.h"
 #include "Poco/Logger.h"
-- 
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