static INT32 parse_tp_info(UINT8 *data, INT32 data_len, T_NODE *t_node)
{
INT32 i;
struct si_descriptor *desc;
UINT32 polar;
INT32 ret = MULTIFEED_SUCCESS;
for(i=0; i<data_len; i+=sizeof(struct si_descriptor)+desc->len)
{
desc = (struct si_descriptor *)(data+i);
if (desc->tag == SATELLITE_DELIVERY_SYSTEM_DESCRIPTOR)
{
struct satellite_delivery_system_descriptor *sat;
sat = (struct satellite_delivery_system_descriptor *)desc;
polar = sat->polarization;
t_node->pol = polar<SAT_POL_CIRCLE_LEFT?polar: polar-2;
t_node->frq = bcd2integer(sat->frequency, 8, 0)/100;
t_node->sym = bcd2integer(sat->symbol_rate, 7, 0)/10;
t_node->FEC_inner = sat->FEC_inner;
//if( t_node->frq== 12031) // for debug
// t_node->frq = 3550;
break;
}
}
return ret;
}
INT32 si_on_sat_delivery_desc(UINT8 tag, UINT8 length, UINT8 *data, void *priv)
{
UINT16 polar;
struct satellite_delivery_system_descriptor *sat =
(struct satellite_delivery_system_descriptor *)(data-2);
struct nit_section_info *n_info = (struct nit_section_info *)priv;
TP_INFO *tp_info;
if (n_info->xp_nr==PSI_MODULE_MAX_TP_NUMBER) {
SDD_PRINTF("%s: maximum xponder collected!\n", __FUNCTION__);
return SI_SUCCESS;
}
tp_info = &n_info->xp[n_info->xp_nr++];
polar = sat->polarization;
/*
* AV require us to support L/R circle modulation for DVB-S.
*
* The following patch code is based on an un-official forum article:
* http://www.sat-china.com/vbb/showthread.php?threadid=19934
* that make the assumption that in voltage control,
* L_CIRCLE is similar to HORIZONAL,
* R_CIRCLE is similar to VIRTICAL,
*
* I didn't perform any detail verification, so we acctually need more
* official document/theory to confirm this patch.
*
* - Zhengdao Li.
*/
tp_info->s_info.polarity = polar<SAT_POL_CIRCLE_LEFT? polar: polar-2;
tp_info->s_info.tsid = n_info->tsid;
tp_info->s_info.onid = n_info->onid;
tp_info->s_info.frequency = bcd2integer(sat->frequency, 8, 0)/100;
tp_info->s_info.position = bcd2integer(sat->orbital_position, 4, 0);
tp_info->s_info.symbol_rate = bcd2integer(sat->symbol_rate, 7, 0)/10;
if (!sat->west_east_flag) {
tp_info->s_info.position = 3600 - tp_info->s_info.position;
}
/*
* Arion require us to support FEC distinguish.
*
* I don't know why they need this, but sure we could support it.
*
* - Zhengdao Li
*/
tp_info->s_info.FEC_inner = sat->FEC_inner;
SDD_PRINTF("*freq: %d\n", tp_info->s_info.frequency);
SDD_PRINTF("*symbol_rate: %d\n", tp_info->s_info.symbol_rate);
SDD_PRINTF("*position: %d\n", tp_info->s_info.position);
SDD_PRINTF("*FEC_inner: %d\n", tp_info->s_info.FEC_inner);
return SI_SUCCESS;
}