MT#63317 track extensions by known ID

Change-Id: I17f20bc8be60d779d1a3d18616bb518062f74e6b

daemon/call.c

@@ -2884,8 +2884,9 @@ __attribute__((nonnull(1)))
 static void media_reset_extmap(struct call_media *media,
 		bool (*exclude)(struct rtp_extension *))
 {
-	// reset basic table
+	// reset basic tables
 	memset(media->extmap_a, 0, sizeof(media->extmap_a));
+	memset(media->extmap_id, 0, sizeof(media->extmap_id));
 	media->extmap_ops = &extmap_ops_short;
 
 	if (!exclude) {
@@ -2910,6 +2911,9 @@ static void media_reset_extmap(struct call_media *media,
 			else
 				media->extmap_ops = &extmap_ops_long;
 
+			if (ext->handler.id < RTP_EXT_NUM)
+				media->extmap_id[ext->handler.id] = ext;
+
 			ele = ele->next;
 			continue;
 		}
@@ -2943,6 +2947,9 @@ static void media_init_extmap(struct call_media *media, struct rtp_extension *ex
 		media->extmap_a[ext->id - 1] = ext;
 	else
 		media->extmap_ops = &extmap_ops_long;
+
+	if (ext->handler.id < RTP_EXT_NUM)
+		media->extmap_id[ext->handler.id] = ext;
 }
 
 __attribute__((nonnull(1, 2)))

include/call.h

@@ -503,6 +503,7 @@ struct call_media {
 
 	extmap_q		extmap; // container
 	struct rtp_extension	*extmap_a[14]; // 1-14 -> [0..13]
+	struct rtp_extension	*extmap_id[RTP_EXT_NUM];
 	extmap_ht		extmap_ht;
 	const struct extmap_ops	*extmap_ops;
 	ext_name_ht		ext_name_ht;