Function realsense_sys::rs2_frame_add_ref

pub unsafe extern "C" fn rs2_frame_add_ref(
    frame: *mut rs2_frame, 
    error: *mut *mut rs2_error
)

create additional reference to a frame without duplicating frame data \param[in] frame handle returned from a callback \param[out] error if non-null, receives any error that occurs during this call, otherwise, errors are ignored \return new frame reference, has to be released by rs2_release_frame