utils/dvb: Allow filling the scan file with NIT network information

Instead of just keeping the same parameters (generally auto-detection
ones) for each service, allows overriding it with the detected
data at the NIT tables.

Also, add two options at dvbv5-scan to enable this feature, and
to enable calling get_frontend() inside the drivers, from where other
detected stuff may be read.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

diff --git a/utils/dvb/dvb-file.c b/utils/dvb/dvb-file.c
index a0e1c79..b5ead20 100644 (file)
--- a/utils/dvb/dvb-file.c
+++ b/utils/dvb/dvb-file.c
@@ -514,10 +514,110 @@ char *dvb_vchannel(struct dvb_descriptors *dvb_desc,
        return buf;
 }
 
+static int store_entry_prop(struct dvb_entry *entry,
+                           uint32_t cmd, uint32_t value)
+{
+       int i;
+
+       for (i = 0; i < entry->n_props; i++) {
+               if (cmd == entry->props[i].cmd)
+                       break;
+       }
+       if (i == entry->n_props) {
+               if (i == DTV_MAX_COMMAND) {
+                       fprintf(stderr, "Can't add property %s\n",
+                              dvb_v5_name[cmd]);
+                       return -1;
+               }
+               entry->n_props++;
+       }
+
+       entry->props[i].u.data = value;
+
+       return 0;
+}
+
+static void handle_std_specific_parms(struct dvb_entry *entry,
+                                     struct dvb_descriptors *dvb_desc)
+{
+       struct nit_table *nit_table = &dvb_desc->nit_table;
+       int i;
+
+       /*
+        * If found, parses the NIT tables for the delivery systems
+        * with the information provided on it. For some delivery systems,
+        * there are some missing stuff.
+        */
+       switch (nit_table->delivery_system) {
+       case SYS_ISDBT:
+               store_entry_prop(entry, DTV_GUARD_INTERVAL,
+                                nit_table->guard_interval);
+               store_entry_prop(entry, DTV_TRANSMISSION_MODE,
+                                nit_table->transmission_mode);
+               asprintf(&entry->location, "area %d", nit_table->area_code);
+               for (i = 0; i < nit_table->partial_reception_len; i++) {
+                       int par, sid = entry->service_id;
+                       par = (sid == nit_table->partial_reception[i]) ?
+                             1 : 0;
+                       store_entry_prop(entry, DTV_ISDBT_PARTIAL_RECEPTION,
+                                       par);
+                       break;
+               }
+               break;
+       case SYS_DVBS2:
+               store_entry_prop(entry, DTV_ROLLOFF,
+                                nit_table->rolloff);
+               /* fall through */
+       case SYS_DVBS:
+               entry->location = strdup(nit_table->orbit);
+               store_entry_prop(entry, DTV_FREQUENCY,
+                                nit_table->frequency[0]);
+               store_entry_prop(entry, DTV_MODULATION,
+                                nit_table->modulation);
+               entry->pol = nit_table->pol;
+               store_entry_prop(entry, DTV_DELIVERY_SYSTEM,
+                                nit_table->delivery_system);
+               store_entry_prop(entry, DTV_SYMBOL_RATE,
+                                nit_table->symbol_rate);
+               store_entry_prop(entry, DTV_INNER_FEC,
+                                nit_table->fec_inner);
+               break;
+       case SYS_DVBC_ANNEX_A:
+               entry->location = strdup(nit_table->network_name);
+               store_entry_prop(entry, DTV_FREQUENCY,
+                                nit_table->frequency[0]);
+               store_entry_prop(entry, DTV_MODULATION,
+                                nit_table->modulation);
+               store_entry_prop(entry, DTV_SYMBOL_RATE,
+                                nit_table->symbol_rate);
+               store_entry_prop(entry, DTV_INNER_FEC,
+                                nit_table->fec_inner);
+               break;
+       case SYS_DVBT:
+               entry->location = strdup(nit_table->network_name);
+               store_entry_prop(entry, DTV_FREQUENCY,
+                                nit_table->frequency[0]);
+               store_entry_prop(entry, DTV_MODULATION,
+                                nit_table->modulation);
+               store_entry_prop(entry, DTV_BANDWIDTH_HZ,
+                                nit_table->bandwidth);
+               store_entry_prop(entry, DTV_CODE_RATE_HP,
+                                nit_table->code_rate_hp);
+               store_entry_prop(entry, DTV_CODE_RATE_LP,
+                                nit_table->code_rate_lp);
+               store_entry_prop(entry, DTV_GUARD_INTERVAL,
+                                nit_table->guard_interval);
+               store_entry_prop(entry, DTV_TRANSMISSION_MODE,
+                                nit_table->transmission_mode);
+               store_entry_prop(entry, DTV_HIERARCHY,
+                                nit_table->hierarchy);
+       }
+}
+
 int store_dvb_channel(struct dvb_file **dvb_file,
                      struct dvb_v5_fe_parms *parms,
                      struct dvb_descriptors *dvb_desc,
-                     int get_detected)
+                     int get_detected, int get_nit)
 {
        struct dvb_entry *entry;
        int i, j;
@@ -595,6 +695,9 @@ int store_dvb_channel(struct dvb_file **dvb_file,
                        entry->props[j].u.data = parms->dvb_prop[j].u.data;
                }
                entry->n_props = parms->n_props;
+
+               if (get_nit)
+                       handle_std_specific_parms(entry, dvb_desc);
        }
 
        return 0;

diff --git a/utils/dvb/dvb-file.h b/utils/dvb/dvb-file.h
index 30cc354..0791288 100644 (file)
--- a/utils/dvb/dvb-file.h
+++ b/utils/dvb/dvb-file.h
@@ -29,6 +29,8 @@ struct dvb_entry {
        char *channel;
        char *vchannel;
 
+       char *location;
+
        enum polarization pol;
        int sat_number;
        unsigned diseqc_wait;
@@ -79,6 +81,8 @@ static inline void dvb_file_free(struct dvb_file *dvb_file)
                        free (entry->channel);
                if (entry->vchannel)
                        free (entry->vchannel);
+               if (entry->location)
+                       free (entry->location);
                if (entry->video_pid)
                        free (entry->video_pid);
                if (entry->audio_pid)
@@ -112,4 +116,4 @@ char *dvb_vchannel(struct dvb_descriptors *dvb_desc,
 int store_dvb_channel(struct dvb_file **dvb_file,
                      struct dvb_v5_fe_parms *parms,
                      struct dvb_descriptors *dvb_desc,
-                     int get_detected);
+                     int get_detected, int get_nit);

diff --git a/utils/dvb/dvbv5-scan.c b/utils/dvb/dvbv5-scan.c
index dab17b6..b51a2c5 100644 (file)
--- a/utils/dvb/dvbv5-scan.c
+++ b/utils/dvb/dvbv5-scan.c
@@ -102,7 +102,8 @@ static int check_frontend(struct dvb_v5_fe_parms *parms, int timeout)
 }
 
 static int run_scan(const char *fname, int format,
-                   struct dvb_v5_fe_parms *parms)
+                   struct dvb_v5_fe_parms *parms,
+                   int get_detected, int get_nit)
 {
        struct dvb_file *dvb_file = NULL, *dvb_file_new = NULL;
        struct dvb_entry *entry;
@@ -229,7 +230,8 @@ static int run_scan(const char *fname, int format,
                                printf("\n");
                }
 
-               store_dvb_channel(&dvb_file_new, parms, dvb_desc, 0);
+               store_dvb_channel(&dvb_file_new, parms, dvb_desc,
+                                 get_detected, get_nit);
 
                free_dvb_ts_tables(dvb_desc);
        }
@@ -253,6 +255,8 @@ static char *usage =
     "     -l LNBf   : type of LNBf to use. 'help' lists the available ones\n"
     "     -S number : satellite number. If not specified, disable DISEqC\n"
     "     -W number : adds aditional wait time for DISEqC command completion\n"
+    "     -N        : use data from NIT table on the output file\n"
+    "     -G        : use data from get_frontend on the output file\n"
     "     -v        : be (very) verbose\n"
     "     -o file   : output filename (use -o - for stdout)\n"
     "     -O        : uses old channel format\n"
@@ -263,12 +267,13 @@ int main(int argc, char **argv)
 {
        char *confname = NULL, *lnb_name = NULL;
        int adapter = 0, frontend = 0, demux = 0;
+       int get_detected = 0, get_nit = 0;
        int lnb = -1, sat_number = -1;
        unsigned diseqc_wait = 0;
        int opt, format = 0;
        struct dvb_v5_fe_parms *parms;
 
-       while ((opt = getopt(argc, argv, "H?ha:f:d:vzOl:S:W:")) != -1) {
+       while ((opt = getopt(argc, argv, "H?ha:f:d:vzOl:S:W:NG")) != -1) {
                switch (opt) {
                case 'a':
                        adapter = strtoul(optarg, NULL, 0);
@@ -294,6 +299,12 @@ int main(int argc, char **argv)
                case 'W':
                        diseqc_wait = strtoul(optarg, NULL, 0);
                        break;
+               case 'N':
+                       get_nit++;
+                       break;
+               case 'D':
+                       get_detected++;
+                       break;
                case 'v':
                        verbose++;
                        break;
@@ -341,7 +352,7 @@ int main(int argc, char **argv)
                parms->sat_number = sat_number % 3;
        parms->diseqc_wait = diseqc_wait;
 
-       if (run_scan(confname, format, parms))
+       if (run_scan(confname, format, parms, get_detected, get_nit))
                return -1;
 
        dvb_fe_close(parms);