i.MX Processors中的主题 how to read framebuffer screen in i.MX53

how to read framebuffer screen in i.MX53

nandkishorbirad — Thu, 03 Apr 2014 08:14:12 GMT

Hi,

I am working on Video overlay & recording project. It involves,

1. Capture the image from a camera in YUV format.

2. Overlay & de-interlace the image & show to the display (fb0) using a IPU.

3. Read the image from the FB0 and convert it from RGBP to YUV420 fromat.

4. pass it to VPU to encode in H.264 format.

I am using mxc_ipu_hl_lib & libvpu, no G-streamer.

So is it possible to read image from FB0 & apply the colour space conversion?

Regards,

Nandkishor.

Re: how to read framebuffer screen in i.MX53

joanxie — Fri, 11 Apr 2014 09:36:20 GMT

you can try to use the mxc_v4l2_tvin unit test, which can capture and de-interlacing video, pls try to use it.

Re: how to read framebuffer screen in i.MX53

YixingKong — Thu, 19 Jun 2014 06:13:16 GMT

Nandkishor

Had your issue got resolved? If yes, we are going to close the discussion in 3 days. If you still need help, please feel free to reply with an update to this discussion.

Thanks,

Yixing

Re: how to read framebuffer screen in i.MX53

YixingKong — Mon, 30 Jun 2014 07:45:00 GMT

Nandkisor

This discussion is closed since no activity. If you still need help, please feel free to reply with an update to this discussion, or create another discussion.

Thanks,

Yixing