mpegtsenc: make PMT PID really start on pmt_start_pid

libavformat/mpegtsenc.c

@@ -421,7 +421,7 @@ static MpegTSService *mpegts_add_service(MpegTSWrite *ts,
     service = av_mallocz(sizeof(MpegTSService));
     if (!service)
         return NULL;
-    service->pmt.pid = ts->pmt_start_pid + ts->nb_services - 1;
+    service->pmt.pid = ts->pmt_start_pid + ts->nb_services;
     service->sid = sid;
     service->provider_name = av_strdup(provider_name);
     service->name = av_strdup(name);

tests/ref/lavf/ts

@@ -1,3 +1,3 @@
-1cebaf8b13700a3360e0c32551e36646 *./tests/data/lavf/lavf.ts
+d260ac0534ff2e26b44b5192fd4fdc21 *./tests/data/lavf/lavf.ts
 406644 ./tests/data/lavf/lavf.ts
 ./tests/data/lavf/lavf.ts CRC=0x133216c1