MT#57719 cdr: Use media subscriptions in `cdr_update_entry()`

Start using the media subscriptions model
(based on newly introduced `media_subscription` objects)
in scope of `cdr_update_entry()`.

Change-Id: I0618a1ee51ec8ea208839da2de46781242287a12

daemon/cdr.c

@@ -42,7 +42,7 @@ void cdr_update_entry(struct call* c) {
 	int cdrlinecnt = 0;
 	AUTO_CLEANUP_INIT(GString *cdr, __g_string_free, g_string_new(""));
 	struct call_media *md;
-	GList *k, *o;
+	GList *o;
 	const struct rtp_payload_type *rtp_pt;
 	struct packet_stream *ps=0;
 
@@ -82,11 +82,21 @@ void cdr_update_entry(struct call* c) {
 				cdrlinecnt, ml->tag.s,
 				cdrlinecnt, get_tag_type_text(ml->tagtype));
 
-			for (k = ml->subscriptions.head; k; k = k->next) {
-				struct call_subscription *cs = k->data;
-				g_string_append_printf(cdr,
-					"ml%i_remote_tag=%s, ",
-					cdrlinecnt, cs->monologue->tag.s);
+			AUTO_CLEANUP(GQueue mls, g_queue_clear) = G_QUEUE_INIT; /* to avoid duplications */
+			for (int i = 0; i < ml->medias->len; i++)
+			{
+				struct call_media * media = ml->medias->pdata[i];
+				if (!media)
+					continue;
+
+				for (GList * sub = media->media_subscriptions.head; sub; sub = sub->next)
+				{
+					struct media_subscription * ms = sub->data;
+					if (!g_queue_find(&mls, ms->monologue)) {
+						g_string_append_printf(cdr, "ml%i_remote_tag=%s, ", cdrlinecnt, ms->monologue->tag.s);
+						g_queue_push_tail(&mls, ms->monologue);
+					}
+				}
 			}
 		}