iMX8MP ISP - How to disable WDR3

[khang_letruong]

Dear Community,

I would like to know if there's a simple way to disable WDR3 feature without using vvext utility please ? My problem is that WDR3 is enabled by default when launching gstreamer and it makes the scene/images brighter but not natural (over-exposure).

Also, even-though I disabled it after first gst-launch (and it does keep it status as disabled), but second gst-launch would require a cycle of re-enable/re-disable to correctly disable it.

Thanks in advance and best regards,

Khang

[joanxie]

refer to the ISP Using V4L2 Interface User Guide,

maybe you can double check these control words to disable it

[khang_letruong]

Hi @joanxie ,

Thanks for your reply. Do you mean that I could use the v4l2-ctl command to control this WDR3's parameters? If yes, could you give an example of the syntax, please ?

Thanks in advance and best regards,

Khang

[artsiomstaliaro]

Example you can find in source code of vvext tool