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Linux - Embedded & Single-board computer This forum is for the discussion of Linux on both embedded devices and single-board computers (such as the Raspberry Pi, BeagleBoard and PandaBoard). Discussions involving Arduino, plug computers and other micro-controller like devices are also welcome.

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Old 01-26-2011, 10:13 AM   #1
santinelli.paolo
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Registered: Jan 2011
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OmniVision OV9655, Video4Linux, how to do SUBCAPTUR


Hi all,

I am currently trying to write C code for an embedded smart camera equipped with an XScal-PXA270 processor running Linux 2.6.9-dma270 and the OV9655 Image sensor.

I am asking help, my goal is capture a subfield of the whole image.

How to do it?

Is this function (VIDIOCSCAPTURE or something else?) supported by the Video4Linux driver for the OV9655 Image sensor ?

Currently I am able to reconfigure the OV9655 in order to change the whole image resolution, 640x480, 320x240 and even lower. The problem is I need do it dynamically, quickly, without close the camera and then reopen it every time I need sub-capture the image.

Thank you very much.

Paolo
 
  


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