Set video buffer in setVideoFormat

Signed-off-by: cesandovalp <sandovalp.ce@gmail.com>

Author: spceaza

wrappers/cpp/libfreenect.hpp

@@ -112,6 +112,9 @@ namespace Freenect {
 					freenect_start_video(m_dev);
 				m_video_format = requested_format;
 				m_video_resolution = requested_resolution;
+				if(m_rgb_buffer != 0) delete[] m_rgb_buffer;
+				m_rgb_buffer = new uint8_t[getVideoBufferSize()];
+				freenect_set_video_buffer(m_dev, m_rgb_buffer);
 			}
 		}
 		freenect_video_format getVideoFormat() {
@@ -173,6 +176,7 @@ namespace Freenect {
 		freenect_depth_format m_depth_format;
 		freenect_resolution m_video_resolution;
 		freenect_resolution m_depth_resolution;
+		uint8_t* m_rgb_buffer = 0;
 		static void freenect_depth_callback(freenect_device *dev, void *depth, uint32_t timestamp) {
 			FreenectDevice* device = static_cast<FreenectDevice*>(freenect_get_user(dev));
 			device->DepthCallback(depth, timestamp);