feature/frame class

Frame class to wrap all channels. Should be easier to use in code as access to any (available/calculated) channel is possible. Automatic transfers between host/gpu if not available in other.

components/rgbd-sources/src/stereovideo.cpp

@@ -61,11 +61,13 @@ void StereoVideoSource::init(const string &file)
 	frames_ = std::vector<Frame>(2);
 
 #ifdef HAVE_OPTFLOW
+/*
 	// TODO make optional, can be calculated at later step
 	
 	nvof_ = cv::cuda::NvidiaOpticalFlow_1_0::create(size.width, size.height,
 													cv::cuda::NvidiaOpticalFlow_1_0::NV_OF_PERF_LEVEL_SLOW,
 													true, false, false, 0);
+*/
 #endif
 
 	calib_ = ftl::create<Calibrate>(host_, "calibration", size, stream_);