[directfb-users] Frame to surface

[Silvio Colombaro]

Good morning,
I was trying to develop a small application that should not
to do is display on the screen the incoming signal by a
IP camera.
Through the camera driver I get a complete frame in one
selectable color space, YUV444, YUV422, YUV411, RGB24, RGBA32,
RGB48.
My application should only create a small window where you
can see the incoming video.

Regarding the window no problem, the
documentation is clear, but I can not find the best way (and
naturally more powerful) to transfer the frame into a
DirectFB surface.

Thank you very much
SC

[Andre DRASZIK]

Hi,

Post by Silvio Colombaro
Through the camera driver I get a complete frame in one
selectable color space, YUV444, YUV422, YUV411, RGB24, RGBA32,
RGB48.

[...]

Post by Silvio Colombaro
documentation is clear, but I can not find the best way (and
naturally more powerful) to transfer the frame into a
DirectFB surface.

Is this a V4L2 driver? You might be able to pass the DirectFB surface
into that V4L2 driver as a user buffer / mmap buffer, i.e. Lock() the
buffer and then pass the returned pointer inside the v4l2_buffer struct,
setting the appropriate flags.

Cheers,
Andre'

[Silvio Colombaro]

Post by Andre DRASZIK
Hi,

Post by Silvio Colombaro
Through the camera driver I get a complete frame in one
selectable color space, YUV444, YUV422, YUV411, RGB24, RGBA32,
RGB48.

[...]

Post by Silvio Colombaro
documentation is clear, but I can not find the best way (and
naturally more powerful) to transfer the frame into a
DirectFB surface.

Is this a V4L2 driver? You might be able to pass the DirectFB surface
into that V4L2 driver as a user buffer / mmap buffer, i.e. Lock() the
buffer and then pass the returned pointer inside the v4l2_buffer struct,
setting the appropriate flags.

I'm not using V4L2 driver. I get a frame directly into a buffer of my
application.
I've try to use IDirectFBSurface->Write but it's seems to be too slow.
I need to watch this video in at least 25 fps for a fluid vision.

There is another way to do this?

Thanks.

Post by Andre DRASZIK
Cheers,
Andre'
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