get_supported_vf_framerates_func

Retrieve the supported viewfinder frame rates

Synopsis:

#include <camera/external_camera_api.h>

typedef int(* get_supported_vf_framerates_func_t)(void *handle,
            camera_res_t *resolution,
            camera_frametype_t frametype,
            int *numRates,
            bool *isMaxMin,
            float *rates);

Arguments:

handle: The handle that's returned from calling the function open_external_camera_func_t.
resolution: The resolution associated with this query. See camera_res_t for details.
frametype: The frame type associated with this query. See camera_frametype_t for details.
numRates: On success, this is set to the number of viewfinder frame rates supported by the camera.
isMaxMin: Must be set to true if the provided rates represent a value range between a minimum and a maximum; must be false if the provided rates represent the individual rates supported.
rates: An array to fill with the supported frame rates. If isMaxMin is set to true, use the array indexes defined in camera_vf_framerate_min_max_index_t for the minimum and maximum values. If isMaxMin is set to false, set the individual frame rates that are supported, up to 100 entries.

Library:

libcamapi

Description:

The viewfinder is capable of operating at different frame rates. This function retrieves the supported frame rates for the specified camera for a given frame type and resolution. Note that the fractional precision of each supported frame rate shouldn't exceed 3 digits of precision.

Returns:

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