Camera Library Referencecamera_api.h Parent topic: camera_api.h

camera_get_specified_vf_resolutions()

Get the list of supported viewfinder resolutions for a given frame type

Synopsis:

#include <camera/camera_api.h>
camera_error_t camera_get_specified_vf_resolutions(camera_handle_t handle,
                                                   camera_frametype_t frametype,
                                                   uint32_t numasked,
                                                   uint32_t *numsupported,
                                                   camera_res_t *resolutions)

Arguments:

handle
The handle returned by a call to the camera_open() function.
frametype
The frame type to query supported the frame rates against.
numasked
The requested number of viewfinder resolutions to return in the resolutions array. You can use a value of 0 to determine the number of viewfinder resolutions supported by the camera.
numsupported
The returned number of viewfinder resolutions supported by the specified camera.
resolutions
A pointer to a camera_res_t array. The array is updated with the viewfinder resolutions supported by the camera. Ensure that you allocate an array with the same number of elements as specified in the numasked argument.

Library:

libcamapi

Description:

After you use this function to retrieve the viewfinder resolutions that are supported by the camera, you can configure the viewfinder size using camera_set_vf_property().

Ensure that the resolutions argument points to an array that has at least numasked elements allocated. To determine an appropriate size for this array, you can invoke this function in presizing mode by setting the numasked argument to 0 or the resolutions argument to NULL. When the function is invoked in this presizing mode, the maximum array size required is returned in the numsupported argument. You can then allocate an array of the appropriate size and invoke the function again with the numasked argument set to the value returned previously in the numsupported argument.

Returns:

CAMERA_EOK when the function successfully completes, otherwise another camera_error_t value that provides the reason that the call failed.

Parent topic: camera_api.h