how to send custom video buffer to HDMI port

Hello ,everyone:
I want to send custom video data through HDMI port,but HDMI can just show the video of desktop.Can I gain control of HDMI like get the handle or some other ways?
Thank you very much!

Hi ccchen,

What do you mean “HDMI can just show the video of desktop”??

Hi,WayneWWW
I mean I cannot access the sending frame buffer of HDMI.And I want to find some ways to send my custom video data?
Thank you very much!

If I understand your request correctly, you mean to render something onto HDMI monitor.

We have some multimedia framework that may help. For example, L4T Multimedia API Reference.

Most of them are C/C++ based.

The download link can be found here: https://developer.nvidia.com/embedded/downloads