1580 static srtp_err_status_t srtp_estimate_index(srtp_rdbx_t *rdbx,  in srtp_estimate_index()  argument
1595     *delta = low32(est) - rdbx->index;  in srtp_estimate_index()
1598     *delta = (int)(*est - rdbx->index);  in srtp_estimate_index()
1601     if (*est > rdbx->index) {  in srtp_estimate_index()
1603         internal_roc = (uint32_t)(rdbx->index >> 16);  in srtp_estimate_index()
1610         internal_pkt_idx_reduced = (uint32_t)(rdbx->index & 0xFFFF);  in srtp_estimate_index()
1619         if (*est - rdbx->index > seq_num_median) {  in srtp_estimate_index()
1624     } else if (*est < rdbx->index) {  in srtp_estimate_index()
1627         internal_roc = (uint32_t)(rdbx->index >> 16);  in srtp_estimate_index()
1635             (uint32_t)((roc_difference << 16) | rdbx->index & 0xFFFF);  in srtp_estimate_index()
1644         if (rdbx->index - *est > seq_num_median) {  in srtp_estimate_index()