feat: add ffi datachannel & mute events (#88)

livekit-ffi/protocol/room.proto

@@ -26,7 +26,7 @@ message ConnectCallback {
 // Disconnect from the a room
 message DisconnectRequest { FfiHandleId room_handle = 1; }
 message DisconnectResponse { FfiAsyncId async_id = 1; }
-message DisconnectCallback { }
+message DisconnectCallback { FfiAsyncId async_id = 1; }
 
 // Publish a track to the room
 message PublishTrackRequest {
@@ -53,9 +53,27 @@ message UnpublishTrackResponse {
   FfiAsyncId async_id = 1;
 }
 message UnpublishTrackCallback {
-  optional string error = 1;
+  FfiAsyncId async_id = 1;
+  optional string error = 2;
 }
 
+// Publish data to other participants
+message PublishDataRequest {
+  FfiHandleId room_handle = 1;
+  uint64 data_ptr = 2;
+  uint64 data_size = 3;
+  DataPacketKind kind = 4;
+  repeated string destination_sids = 5; // destination
+}
+message PublishDataResponse {
+  FfiAsyncId async_id = 1;
+}
+message PublishDataCallback {
+  FfiAsyncId async_id = 1;
+  optional string error = 2;
+}
+
+
 ///
 /// Options
 ///
@@ -77,13 +95,13 @@ message TrackPublishOptions {
   bool dtx = 4;
   bool red = 5;
   bool simulcast = 6;
-  string name = 7;
-  TrackSource source = 8;
+  TrackSource source = 7;
 }
 
 message RoomOptions {
   bool auto_subscribe = 1;
   bool adaptive_stream = 2;
+  bool dynacast = 3;
 }
 
 ///
@@ -104,7 +122,7 @@ enum ConnectionState {
 }
 
 enum DataPacketKind {
-  KIND_UNRELIABLE = 0;
+  KIND_LOSSY = 0;
   KIND_RELIABLE = 1;
 }
 
@@ -141,7 +159,7 @@ message RoomInfo {
 
 message DataReceived {
   FfiHandleId handle = 1;
-  optional string participant_sid = 2;
+  optional string participant_sid = 2; // Can be empty if the data is sent a server SDK
   uint64 data_ptr = 3;
   uint64 data_size = 4;
   DataPacketKind kind = 5;
@@ -196,4 +214,4 @@ message ConnectionStateChanged { ConnectionState state = 1; }
 message Connected {}
 message Disconnected {}
 message Reconnecting {}
-message Reconnected {}
+message Reconnected {}