how osd work on imx6q?

[stevenhuang]

I wan the video as the input of fb0, QT frame as the input of fb1; video is background, QT  picture is front, but no QT picture been display.  Where can i find document about this issue?

[yyuan]

hello

please  do you solve the peoblem?

i have the same problem.

please help me

thank you

[stevenhuang]

I  am sorry,  the FB0 is FG, fb1 is BG. but i fond the BG have no any picture display.

[igorpadykov · Accepted solution]

Hi 友 杨 

please check below links which may help

IPUv3 frame buffer question (./driver/video/mxc/mxc_ipuv3_fb.c) 

i.MX6: fb2 Framebuffer issue 

A Deep Dive into Image Processing for i.MX 6 Series Applications Processors 

Best regards
igor
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[stevenhuang]

thank you,  i have fixed my issue: the alpha value is 0 by default, so the BG can't display.