} \
} while (0)
#else
-#define check_thread_pos(td, otd, mb_x_check, mb_y_check)
-#define update_pos(td, mb_y, mb_x)
+#define check_thread_pos(td, otd, mb_x_check, mb_y_check) while(0)
+#define update_pos(td, mb_y, mb_x) while(0)
#endif
static av_always_inline void decode_mb_row_no_filter(AVCodecContext *avctx, void *tdata,