Linux/AM5728: Video plane adjustments

kim yoochang

Intellectual 720 points

Part Number: AM5728

Tool/software: Linux

hello experts.

I'm overlaying two planes(vid2, vid3) on the hdmi screen and outputting it.

I would like to adjust the saturation, contrast, brightness in one of the plane.

could you tell me that there are documents or examples?

using psdk-03.01.00.06 & am5728

Thanks and regards

over 8 years ago

0 Biser Gatchev-XID over 8 years ago

TI__Guru**** 393215 points

Hi,

The software team have been notified. They will respond here.

0 Manisha Agrawal over 8 years ago

TI__Mastermind 22946 points

aupers said:
I would like to adjust the saturation, contrast, brightness in one of the plane.

This is not supported by any of the hardware accelerator on AM5728. Will need to be done in software but there's no algorithm provided by TI on same.

0 kim yoochang over 8 years ago in reply to Manisha Agrawal

Intellectual 720 points

Thanks manisha.

0 kim yoochang over 8 years ago in reply to Manisha Agrawal

Intellectual 720 points

Hello,

I'm sorry. There was my mistake.
It is not a plane but a DSS.

I found information on tv_properties (margin, saturation, contrast, brightness, ...) in "/drivers/gpu/drm/drm_crtc.c".
I looked up the information to use it, but I could not find it.
Is it appropriate to use this?

If this information is correct, please Could give some documents or examples how to achieve this?

Thank you.

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Linux/AM5728: Video plane adjustments