media node upgrades to reference pixel format

app/render/colorservice.cpp

@@ -2,13 +2,13 @@
 
 const int kRGBAChannels = 4;
 
-ColorService::ColorService()
+ColorService::ColorService(const char* source_space, const char* dest_space)
 {
   // FIXME: Hardcoded values for testing purposes
   OCIO::ConstConfigRcPtr config = OCIO::Config::CreateFromFile("/run/media/matt/Home/OpenColorIO/ocio.configs.0.7v4/nuke-default/config.ocio");
 
-  processor = config->getProcessor("srgb",
-                                   OCIO::ROLE_SCENE_LINEAR);
+  processor = config->getProcessor(source_space,
+                                   dest_space);
 }
 
 void ColorService::ConvertFrame(FramePtr f)
@@ -17,3 +17,8 @@ void ColorService::ConvertFrame(FramePtr f)
 
   processor->apply(img);
 }
+
+OpenColorIO::v1::ConstProcessorRcPtr ColorService::GetProcessor()
+{
+  return processor;
+}