feat: updae to pub/sub pc (two-pc)

configs/docker/sfu.toml

@@ -3,16 +3,19 @@ pprof = ":6062"
 # data center id
 dc = "dc1"
 
-[log]
-level = "info"
-
 [etcd]
 # ["ip:port", "ip:port"]
 addrs = ["etcd:2379"]
 
 [nats]
 url = "nats://nats:4222"
 
+[sfu]
+# Ballast size in MiB, will allocate memory to reduce the GC trigger upto 2x the
+# size of ballast. Be aware that the ballast should be less than the half of memory
+# available.
+ballast = 0
+
 [router]
 # Limit the remb bandwidth in kbps
 # zero means no limits
@@ -39,6 +42,13 @@ enabletemporallayer = false
 # username = "awsome"
 # credential = "awsome"
 
+# sdp semantics:
+# "unified-plan"
+# "plan-b"
+# "unified-plan-with-fallback"
+sdpsemantics = "unified-plan"
+
+[webrtc.candidates]
 # In case you're deploying ion-sfu on a server which is configured with
 # a 1:1 NAT (e.g., Amazon EC2), you might want to also specify the public
 # address of the machine using the setting below. This will result in
@@ -49,3 +59,7 @@ enabletemporallayer = false
 # if the sfu is deployed in a DMZ between two 1-1 NAT for internal and
 # external users.
 # nat1to1 = ["1.2.3.4"]
+# icelite = true
+
+[log]
+level = "info"