One of our design (based on imx6 sabre lite board) demands to transfer qt buffer (buttons - overlayed) + video over rtsp (h264/mpeg encoding). So the path being displaybuffer (gstreamer+qt) -> vpu(encoding) -> rtsp. We are using yocto with qt x11. Which will be the best way to achieve this. Our gstreamer version is 0.10. Do we have any reference for this.