Retrieve the supported video viewfinder frame rates.
camera_error_t camera_get_video_vf_framerates(camera_handle_t handle, int numasked, int *numsupported, double *rates, bool *maxmin)
The handle returned by a call to the camera_open() function.
The requested number of frame rates to return in the rates array. You can specify a value of 0 to determine the number of supported frame rates.
The pointer to an integer that will be updated with the number of supported frame rates.
A pointer to a double array. The array is updated with the photo viewfinder frame rates that are supported. You must ensure that you allocate an array with the same number of elements as the value from the numasked argument. If the maxmin argument returns true, then the first value returned in the rates array is the maximum supported frame rate, and the second value returned is the minimum supported frame rate.
A pointer to a boolean value which will be set to true if the values returned should be interpreted as a maximum and a minimum value, or set to false if the values only describe the discrete frame rates that are supported.
Use this function to retrieve the set of supported video viewfinder frame rates.
Ensure that the rates argument points to an array which 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 to 0 or the rates argument to NULL. When the function is invoked in presizing mode, the maximum array size that is required is returned in numsupported argument. You can then allocate an array of the appropriate size and invoke the function again with numasked argument set to the value returned previously in the numsupported argument.