RPC changes for ingress proxy WHIP (#1194)

* Add rpc for ingress whip proxy

* remove track stats

* use video layer mode for skip reference ts

* compile error

* generated protobuf

---------

Co-authored-by: github-actions <41898282+github-actions[bot]@users.noreply.github.com>

Author: cnderrauber

livekit/livekit_models.pb.go

@@ -175,7 +175,7 @@ message ParticipantInfo {
   DisconnectReason disconnect_reason = 16;
   repeated KindDetail kind_details = 18;
 
-  // NEXT_ID: 19
+  // NEXT_ID: 19 
 }
 
 enum TrackType {
@@ -257,6 +257,7 @@ message VideoLayer {
     MODE_UNUSED = 0;
     ONE_SPATIAL_LAYER_PER_STREAM = 1;
     MULTIPLE_SPATIAL_LAYERS_PER_STREAM = 2;
+    ONE_SPATIAL_LAYER_PER_STREAM_INCOMPLETE_RTCP_SR = 3;
   }
 
   // for tracks with a single layer, this should be HIGH

protobufs/livekit_models.proto

@@ -56,7 +56,14 @@ service IngressHandler {
   rpc ICERestartWHIPResource(ICERestartWHIPResourceRequest) returns (ICERestartWHIPResourceResponse) {
     option (psrpc.options).topics = true;
   };
-
+  rpc WHIPRTCConnectionNotify(WHIPRTCConnectionNotifyRequest) returns (google.protobuf.Empty) {
+    option (psrpc.options) = {
+      topics: true
+      topic_params: {
+        single_server: true;
+      }
+    };
+  };
 }
 
 message ListActiveIngressRequest {}
@@ -86,6 +93,11 @@ message ICERestartWHIPResourceResponse {
   string etag = 2;
 }
 
+message WHIPRTCConnectionNotifyRequest {
+  string participant_id = 1;
+  bool closed = 2;
+}
+
 message StartIngressRequest {
   livekit.IngressInfo info = 1;
   string token = 2;

protobufs/rpc/ingress.proto

@@ -31,6 +31,7 @@ message WHIPCreateRequest {
   livekit.StartSession start_session = 1;
   string offer_sdp = 2;
   map<string, TrackList> subscribed_participant_tracks = 3;
+  bool from_ingress = 4;
 }
 
 message WHIPCreateResponse {
@@ -101,4 +102,5 @@ message WHIPParticipantDeleteSessionRequest {
   string room = 1;
   string participant_identity = 2;
   string participant_id = 3;
+  bool from_sweeper = 4;
 }