remove fake service/provider names used for PAT

this allows us to distingush if the info came from SDT or PAT and will
allow to dyamically fill info in ...

Originally committed as revision 9199 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavformat/mpegts.c

@@ -584,8 +584,6 @@ static void pat_scan_cb(void *opaque, const uint8_t *section, int section_len)
     SectionHeader h1, *h = &h1;
     const uint8_t *p, *p_end;
     int sid, pmt_pid;
-    char *provider_name, *name;
-    char buf[256];
 
 #ifdef DEBUG_SI
     av_log(ts->stream, AV_LOG_DEBUG, "PAT:\n");
@@ -611,16 +609,7 @@ static void pat_scan_cb(void *opaque, const uint8_t *section, int section_len)
         if (sid == 0x0000) {
             /* NIT info */
         } else {
-            /* add the service with a dummy name */
-            snprintf(buf, sizeof(buf), "Service %x\n", sid);
-            name = av_strdup(buf);
-            provider_name = av_strdup("");
-            if (name && provider_name) {
-                new_service(ts, sid, provider_name, name);
-            } else {
-                av_freep(&name);
-                av_freep(&provider_name);
-            }
+            new_service(ts, sid, NULL, NULL);
         }
     }
     ts->stop_parse = 1;