- pic->motion_val_buf[i] = av_buffer_allocz(2 * (b4_array_size + 4) * sizeof(int16_t));
- pic->ref_index_buf[i] = av_buffer_allocz(4 * mb_array_size);
- if (!pic->motion_val_buf[i] || !pic->ref_index_buf[i]) {
+ pic->motion_val_buf[i] = av_calloc(b4_array_size + 4, 2 * sizeof(int16_t));
+ if (!pic->motion_val_buf[i]) {