imx6 mxc_v4l2_overlay application not working with USB webcam

[jagadeeshmarada]

Dear all,

Iam testing mxc_v4l2_overlay application on imx6 quad evaluation board.

source:http://git.freescale.com/git/cgit.cgi/imx/imx-test.git/tree/test/mxc_v4l2_test/mxc_v4l2_overlay.c

my input: video source is through logitech USB webcam

while testing the mxc_v4l2_overlay application iam getting the fallowing debug prints

root@iWave-G15:~/test_examples# ./overlay_ex                                    
g_display_width = 240, g_display_height = 320                                   
g_display_top = 0, g_display_left = 0                                                          
VIDIOC_S_OUTPUT failed

webcam is UVC compatible which uses

Driver: "uvcvideo"              

 
how to resolve the issue!

how can i test overlay functionality for imx6, can anyone please provide the video related examples for imx6

Thanks & Regards

jagadeesh

[shivanipatel]

Hi jagadeeshmarada

Do you have connected display device with the board?

Regards,

Shivani

[joanxie]

refer to the error message, it seems this is output issue, pls check if you set the output correct, mxc_v4l2_overlay.out means direct preview the camera to SDC foreground.