gst-launch on imx8m plus board

[chp0423]

when I use command " gst-launch-1.0 -v v4l2src device=/dev/video2 ! "video/x-raw, format=YUY2, width=1920, height=1080, framerate=60/1, pixel-aspect-ratio=1/1, interlace-mode=progressive, colorimetry=bt709" ! queue ! waylandsink" to display preview camera, the display window always presents fullscreen (I use a 4K resolution monitor), i.e., the video window is 1920*1080 and other part of the windows is black. How can I set the display window of gst-launch to the actual resolution (1920*1080)?

[joanxie]

could you give me a picture to show this? and tell me what bsp version you use

[chp0423]

I did more tests: (I used 5.15.71 BSP version, my own 1080p CMOS sensor, and a 1080p monitor)

1. set dewarp bypass to false, the result of gst-launch is shown in configure1.png. No matter what resolution I set in gst-launch, the gst-launch always presents fullscreen window, with a smaller image window
2. set dewarp bypass to true, the result of gst-launch is shown in configure2.png

could you please tell me why there are differences of window size with dewarp bypass or not bypass?

[joanxie]

As I known, if you use ISP, you need enable dewarp in the same time, why do you need disable this?

[chp0423]

I was just testing imaging effect directly from ISP. At now, I have not calibrated my dewarp parameters. Also, my lens don't have large distortion. Therefore, I temporily bypass it.

[joanxie]

in dts file, if you disable dwe, the isp should be issue, if you want to bypass dewarp, you can set the "bypass" as true in dewarp config file