Mv mv_l0_col = { 0 }, mv_l1_col = { 0 };
int available_l0 = temporal_luma_motion_vector(s, x0, y0, nPbW, nPbH,
0, &mv_l0_col, 0);
Mv mv_l0_col = { 0 }, mv_l1_col = { 0 };
int available_l0 = temporal_luma_motion_vector(s, x0, y0, nPbW, nPbH,
0, &mv_l0_col, 0);