ff_estimate_motion_b 1645 libavcodec/motion_est.c                 ff_estimate_motion_b(s, mb_x, mb_y, s->b_forw_mv_table, 0, s->f_code);
ff_estimate_motion_b 1649 libavcodec/motion_est.c                 ff_estimate_motion_b(s, mb_x, mb_y, s->b_back_mv_table, 2, s->b_code);
ff_estimate_motion_b 1675 libavcodec/motion_est.c     fmin= ff_estimate_motion_b(s, mb_x, mb_y, s->b_forw_mv_table, 0, s->f_code) + 3*penalty_factor;
ff_estimate_motion_b 1678 libavcodec/motion_est.c     bmin= ff_estimate_motion_b(s, mb_x, mb_y, s->b_back_mv_table, 2, s->b_code) + 2*penalty_factor;