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Hi,
We are working with the CX3 component as a UVC class with an OV5640 camera sensor and we are also developing windows host application for the same. We need support on how to get a still image from the camera sensor by use of UVC still image trigger command. Currently, we are able to capture still image from video stream by use of the "IMFCaptureEngine" of windows media foundation but we need to do it using UVC still image trigger command. Can anyone please point our some reference source or documentation for the same?
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Hello,
Please refer to page 12-16 of the UVC 1.1 specification to understand about how the device initiates a trigger and how the host responds to take a still capture. The link to the same is given below:
http://www.cajunbot.com/wiki/images/8/85/USB_Video_Class_1.1.pdf
The host applications like AMCap and e-CamView have this implementation already made in it. We made use of these applications for testing our implementation. Hence, we do not have the source code of an application that implements this feature to share. Please refer to the specification and develop a custom host application.
Best Regards,
Jayakrishna
Jayakrishna