snapshot of https://github.com/livekit/livekit.git @ 08c5433449c106943231037d0b892895f6e92d3b (2026-09-15)

pkg/rtc/signalling/signalling.go

@@ -0,0 +1,276 @@
+// Copyright 2023 LiveKit, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package signalling
+
+import (
+	"github.com/livekit/protocol/livekit"
+	"github.com/livekit/protocol/logger"
+
+	"google.golang.org/protobuf/proto"
+)
+
+var _ ParticipantSignalling = (*signalling)(nil)
+
+type SignallingParams struct {
+	Logger logger.Logger
+}
+
+type signalling struct {
+	params SignallingParams
+}
+
+func NewSignalling(params SignallingParams) ParticipantSignalling {
+	return &signalling{
+		params: params,
+	}
+}
+
+func (s *signalling) SignalJoinResponse(join *livekit.JoinResponse) proto.Message {
+	return &livekit.SignalResponse{
+		Message: &livekit.SignalResponse_Join{
+			Join: join,
+		},
+	}
+}
+
+func (s *signalling) SignalParticipantUpdate(participants []*livekit.ParticipantInfo) proto.Message {
+	if len(participants) == 0 {
+		return nil
+	}
+
+	return &livekit.SignalResponse{
+		Message: &livekit.SignalResponse_Update{
+			Update: &livekit.ParticipantUpdate{
+				Participants: participants,
+			},
+		},
+	}
+}
+
+func (s *signalling) SignalSpeakerUpdate(speakers []*livekit.SpeakerInfo) proto.Message {
+	if len(speakers) == 0 {
+		return nil
+	}
+
+	return &livekit.SignalResponse{
+		Message: &livekit.SignalResponse_SpeakersChanged{
+			SpeakersChanged: &livekit.SpeakersChanged{
+				Speakers: speakers,
+			},
+		},
+	}
+}
+
+func (s *signalling) SignalRoomUpdate(room *livekit.Room) proto.Message {
+	return &livekit.SignalResponse{
+		Message: &livekit.SignalResponse_RoomUpdate{
+			RoomUpdate: &livekit.RoomUpdate{
+				Room: room,
+			},
+		},
+	}
+}
+
+func (s *signalling) SignalConnectionQualityUpdate(connectionQuality *livekit.ConnectionQualityUpdate) proto.Message {
+	return &livekit.SignalResponse{
+		Message: &livekit.SignalResponse_ConnectionQuality{
+			ConnectionQuality: connectionQuality,
+		},
+	}
+}
+
+func (s *signalling) SignalRefreshToken(token string) proto.Message {
+	return &livekit.SignalResponse{
+		Message: &livekit.SignalResponse_RefreshToken{
+			RefreshToken: token,
+		},
+	}
+}
+
+func (s *signalling) SignalRequestResponse(requestResponse *livekit.RequestResponse) proto.Message {
+	return &livekit.SignalResponse{
+		Message: &livekit.SignalResponse_RequestResponse{
+			RequestResponse: requestResponse,
+		},
+	}
+}
+
+func (s *signalling) SignalRoomMovedResponse(roomMoved *livekit.RoomMovedResponse) proto.Message {
+	return &livekit.SignalResponse{
+		Message: &livekit.SignalResponse_RoomMoved{
+			RoomMoved: roomMoved,
+		},
+	}
+}
+
+func (s *signalling) SignalReconnectResponse(reconnect *livekit.ReconnectResponse) proto.Message {
+	return &livekit.SignalResponse{
+		Message: &livekit.SignalResponse_Reconnect{
+			Reconnect: reconnect,
+		},
+	}
+}
+
+func (s *signalling) SignalICECandidate(trickle *livekit.TrickleRequest) proto.Message {
+	return &livekit.SignalResponse{
+		Message: &livekit.SignalResponse_Trickle{
+			Trickle: trickle,
+		},
+	}
+}
+
+func (s *signalling) SignalTrackMuted(mute *livekit.MuteTrackRequest) proto.Message {
+	return &livekit.SignalResponse{
+		Message: &livekit.SignalResponse_Mute{
+			Mute: mute,
+		},
+	}
+}
+
+func (s *signalling) SignalTrackPublished(trackPublished *livekit.TrackPublishedResponse) proto.Message {
+	return &livekit.SignalResponse{
+		Message: &livekit.SignalResponse_TrackPublished{
+			TrackPublished: trackPublished,
+		},
+	}
+}
+
+func (s *signalling) SignalTrackUnpublished(trackUnpublished *livekit.TrackUnpublishedResponse) proto.Message {
+	return &livekit.SignalResponse{
+		Message: &livekit.SignalResponse_TrackUnpublished{
+			TrackUnpublished: trackUnpublished,
+		},
+	}
+}
+
+func (s *signalling) SignalTrackSubscribed(trackSubscribed *livekit.TrackSubscribed) proto.Message {
+	return &livekit.SignalResponse{
+		Message: &livekit.SignalResponse_TrackSubscribed{
+			TrackSubscribed: trackSubscribed,
+		},
+	}
+}
+
+func (s *signalling) SignalLeaveRequest(leave *livekit.LeaveRequest) proto.Message {
+	return &livekit.SignalResponse{
+		Message: &livekit.SignalResponse_Leave{
+			Leave: leave,
+		},
+	}
+}
+
+func (s *signalling) SignalSdpAnswer(answer *livekit.SessionDescription) proto.Message {
+	return &livekit.SignalResponse{
+		Message: &livekit.SignalResponse_Answer{
+			Answer: answer,
+		},
+	}
+}
+
+func (s *signalling) SignalSdpOffer(offer *livekit.SessionDescription) proto.Message {
+	return &livekit.SignalResponse{
+		Message: &livekit.SignalResponse_Offer{
+			Offer: offer,
+		},
+	}
+}
+
+func (s *signalling) SignalStreamStateUpdate(streamStateUpdate *livekit.StreamStateUpdate) proto.Message {
+	return &livekit.SignalResponse{
+		Message: &livekit.SignalResponse_StreamStateUpdate{
+			StreamStateUpdate: streamStateUpdate,
+		},
+	}
+}
+
+func (s *signalling) SignalSubscribedQualityUpdate(subscribedQualityUpdate *livekit.SubscribedQualityUpdate) proto.Message {
+	return &livekit.SignalResponse{
+		Message: &livekit.SignalResponse_SubscribedQualityUpdate{
+			SubscribedQualityUpdate: subscribedQualityUpdate,
+		},
+	}
+}
+
+func (s *signalling) SignalSubscriptionResponse(subscriptionResponse *livekit.SubscriptionResponse) proto.Message {
+	return &livekit.SignalResponse{
+		Message: &livekit.SignalResponse_SubscriptionResponse{
+			SubscriptionResponse: subscriptionResponse,
+		},
+	}
+}
+
+func (s *signalling) SignalSubscriptionPermissionUpdate(subscriptionPermissionUpdate *livekit.SubscriptionPermissionUpdate) proto.Message {
+	return &livekit.SignalResponse{
+		Message: &livekit.SignalResponse_SubscriptionPermissionUpdate{
+			SubscriptionPermissionUpdate: subscriptionPermissionUpdate,
+		},
+	}
+}
+
+func (s *signalling) SignalMediaSectionsRequirement(mediaSectionsRequirement *livekit.MediaSectionsRequirement) proto.Message {
+	return &livekit.SignalResponse{
+		Message: &livekit.SignalResponse_MediaSectionsRequirement{
+			MediaSectionsRequirement: mediaSectionsRequirement,
+		},
+	}
+}
+
+func (s *signalling) SignalSubscribedAudioCodecUpdate(subscribedAudioCodecUpdate *livekit.SubscribedAudioCodecUpdate) proto.Message {
+	return &livekit.SignalResponse{
+		Message: &livekit.SignalResponse_SubscribedAudioCodecUpdate{
+			SubscribedAudioCodecUpdate: subscribedAudioCodecUpdate,
+		},
+	}
+}
+
+func (s *signalling) SignalPublishDataTrackResponse(publishDataTrackResponse *livekit.PublishDataTrackResponse) proto.Message {
+	return &livekit.SignalResponse{
+		Message: &livekit.SignalResponse_PublishDataTrackResponse{
+			PublishDataTrackResponse: publishDataTrackResponse,
+		},
+	}
+}
+
+func (s *signalling) SignalUnpublishDataTrackResponse(unpublishDataTrackResponse *livekit.UnpublishDataTrackResponse) proto.Message {
+	return &livekit.SignalResponse{
+		Message: &livekit.SignalResponse_UnpublishDataTrackResponse{
+			UnpublishDataTrackResponse: unpublishDataTrackResponse,
+		},
+	}
+}
+
+func (s *signalling) SignalDataTrackSubscriberHandles(dataTrackSubscriberHandles *livekit.DataTrackSubscriberHandles) proto.Message {
+	return &livekit.SignalResponse{
+		Message: &livekit.SignalResponse_DataTrackSubscriberHandles{
+			DataTrackSubscriberHandles: dataTrackSubscriberHandles,
+		},
+	}
+}
+
+func (s *signalling) SignalStoreDataBlobResponse(storeDataBlobResponse *livekit.StoreDataBlobResponse) proto.Message {
+	return &livekit.SignalResponse{
+		Message: &livekit.SignalResponse_StoreDataBlobResponse{
+			StoreDataBlobResponse: storeDataBlobResponse,
+		},
+	}
+}
+
+func (s *signalling) SignalGetDataBlobResponse(getDataBlobResponse *livekit.GetDataBlobResponse) proto.Message {
+	return &livekit.SignalResponse{
+		Message: &livekit.SignalResponse_GetDataBlobResponse{
+			GetDataBlobResponse: getDataBlobResponse,
+		},
+	}
+}