Function realsense_sys::rs2_get_frame_metadata

pub unsafe extern "C" fn rs2_get_frame_metadata(
    frame: *const rs2_frame, 
    frame_metadata: rs2_frame_metadata_value, 
    error: *mut *mut rs2_error
) -> rs2_metadata_type

retrieve metadata from frame handle \param[in] frame handle returned from a callback \param[in] frame_metadata the rs2_frame_metadata whose latest frame we are interested in \param[out] error if non-null, receives any error that occurs during this call, otherwise, errors are ignored \return the metadata value