I used release-bsp-L4.1.15_2.1.0 Burning recording on my development board of IMX6, the release-bsp-L4.1.15_2.1.0 included of imx-gst1.0-plugin.
When i use command of: "gst-launch-1.0 videotestsrc ! overlaysink" to playing, video always on top of HMI, but i don not want like this,i want my HMI default on the top,The video being played hide under HMI.
How can i do it? thanks.