pub unsafe extern "C" fn libmv_solveModal(
libmv_tracks: *const libmv_Tracks,
libmv_camera_intrinsics_options: *const libmv_CameraIntrinsicsOptions,
libmv_reconstruction_options: *const libmv_ReconstructionOptions,
progress_update_callback: reconstruct_progress_update_cb,
callback_customdata: *mut c_void,
) -> *mut libmv_Reconstruction