Hello,
On 05/02/2011 06:50 PM, Hans Verkuil wrote:
On Monday, May 02, 2011 13:04:59 vipul kumar samar wrote:
Hello,
I am working on LCD module and I want to implement two overlay windows
on frame buffer. I have some queries related to this:
You mean capture overlay windows? E.g. you want to capture from a video input
and have the video directly rendered in the framebuffer?
Our LCD driver is developed on frame buffer interface.Now i want to
implement 2 overlay window support on the same driver.I saw the solution
of frame buffer emulator provided on mailing list. But i am little bit
confused.
My understanding is Frame buffer emulator provides a wrapper over V4L2
framework based driver and provide a single buffer solution.But my
condition is reverse i want to use V4L2 over frame buffer.
Is it fruit full to rearrange frame buffer based driver in v4l2
framework and then implement overlay support over it??
Is there any simple way to use V4L2 frame work over frame buffer??
Thanks and Regards
Vipul Samar
The "Video Overlay Interface" section in the V4L2 specification describes how
to do that, but it also depends on whether the V4L2 driver in question
supports that feature.
It might be that you mean something else, though.
Regards,
Hans
1. Can any body suggest me how to proceed towards it??
2. Is their any standard way to use frame buffer ioctl calls??
3. If i have to define my own ioctls then how application manage it??
Thanks and Regards
Vipul Samar
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