Add auto_subscribe_data_track to StartSession. (#1366)

* Add auto_subscribe_data_track to StartSession.

* Update big-ducks-play.md for new feature

Add auto_subscribe_data_track feature to StartSession.

* generated protobuf

---------

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

Author: boks1971

.changeset/big-ducks-play.md

@@ -0,0 +1,6 @@
+---
+"@livekit/protocol": patch
+"github.com/livekit/protocol": patch
+---
+
+Add auto_subscribe_data_track to StartSession.

livekit/livekit_internal.pb.go

@@ -15,17 +15,18 @@
 syntax = "proto3";
 
 package livekit;
-option go_package = "github.com/livekit/protocol/livekit";
-option csharp_namespace = "LiveKit.Proto";
-option ruby_package = "LiveKit::Proto";
 
+import "livekit_agent_dispatch.proto";
+import "livekit_egress.proto";
 // internal protos, not exposed to clients
 import "livekit_models.proto";
-import "livekit_egress.proto";
-import "livekit_agent_dispatch.proto";
 import "livekit_room.proto";
 import "livekit_rtc.proto";
 
+option csharp_namespace = "LiveKit.Proto";
+option go_package = "github.com/livekit/protocol/livekit";
+option ruby_package = "LiveKit::Proto";
+
 enum NodeType {
   SERVER = 0;
   CONTROLLER = 1;
@@ -65,14 +66,14 @@ message NodeStats {
   int32 num_tracks_in = 5;
   int32 num_tracks_out = 6;
   int32 num_track_publish_attempts = 36;
-  float track_publish_attempts_per_sec = 37 [deprecated=true];
+  float track_publish_attempts_per_sec = 37 [deprecated = true];
   int32 num_track_publish_success = 38;
-  float track_publish_success_per_sec = 39 [deprecated=true];
+  float track_publish_success_per_sec = 39 [deprecated = true];
   int32 num_track_publish_cancels = 51;
   int32 num_track_subscribe_attempts = 40;
-  float track_subscribe_attempts_per_sec = 41 [deprecated=true];
+  float track_subscribe_attempts_per_sec = 41 [deprecated = true];
   int32 num_track_subscribe_success = 42;
-  float track_subscribe_success_per_sec = 43 [deprecated=true];
+  float track_subscribe_success_per_sec = 43 [deprecated = true];
   int32 num_track_subscribe_cancels = 52;
 
   // packet
@@ -81,40 +82,40 @@ message NodeStats {
   uint64 packets_in = 9;
   uint64 packets_out = 10;
   uint64 nack_total = 11;
-  float bytes_in_per_sec = 12 [deprecated=true];
-  float bytes_out_per_sec = 13 [deprecated=true];
+  float bytes_in_per_sec = 12 [deprecated = true];
+  float bytes_out_per_sec = 13 [deprecated = true];
   float packets_in_per_sec = 14;
-  float packets_out_per_sec = 15 [deprecated=true];
-  float nack_per_sec = 16 [deprecated=true];
+  float packets_out_per_sec = 15 [deprecated = true];
+  float nack_per_sec = 16 [deprecated = true];
 
   // system
   uint32 num_cpus = 17;
   float load_avg_last1min = 18;
   float load_avg_last5min = 19;
   float load_avg_last15min = 20;
   float cpu_load = 21;
-  float memory_load = 33 [deprecated=true];
+  float memory_load = 33 [deprecated = true];
   uint64 memory_total = 34;
   uint64 memory_used = 35;
   uint32 sys_packets_out = 28;
   uint32 sys_packets_dropped = 29;
-  float sys_packets_out_per_sec = 30 [deprecated=true];
-  float sys_packets_dropped_per_sec = 31 [deprecated=true];
-  float sys_packets_dropped_pct_per_sec = 32 [deprecated=true];
+  float sys_packets_out_per_sec = 30 [deprecated = true];
+  float sys_packets_dropped_per_sec = 31 [deprecated = true];
+  float sys_packets_dropped_pct_per_sec = 32 [deprecated = true];
 
   // retransmissions
   uint64 retransmit_bytes_out = 22;
   uint64 retransmit_packets_out = 23;
-  float retransmit_bytes_out_per_sec = 24 [deprecated=true];
-  float retransmit_packets_out_per_sec = 25 [deprecated=true];
+  float retransmit_bytes_out_per_sec = 24 [deprecated = true];
+  float retransmit_packets_out_per_sec = 25 [deprecated = true];
 
   // participant joins
   uint64 participant_signal_connected = 26;
-  float participant_signal_connected_per_sec = 27 [deprecated=true];
+  float participant_signal_connected_per_sec = 27 [deprecated = true];
   uint64 participant_rtc_connected = 44;
-  float participant_rtc_connected_per_sec = 45 [deprecated=true];
+  float participant_rtc_connected_per_sec = 45 [deprecated = true];
   uint64 participant_rtc_init = 46;
-  float participant_rtc_init_per_sec = 47 [deprecated=true];
+  float participant_rtc_init_per_sec = 47 [deprecated = true];
   uint64 participant_rtc_canceled = 53;
 
   // forward metrics
@@ -172,9 +173,10 @@ message StartSession {
   // if a client is reconnecting (i.e. resume instead of restart)
   bool reconnect = 4;
   bool auto_subscribe = 9;
-  bool hidden = 10 [deprecated=true];
+  optional bool auto_subscribe_data_track = 25;
+  bool hidden = 10 [deprecated = true];
   ClientInfo client = 11;
-  bool recorder = 12 [deprecated=true];
+  bool recorder = 12 [deprecated = true];
   string name = 13;
   // A user's ClaimGrants serialized in JSON
   string grants_json = 14;
@@ -189,6 +191,8 @@ message StartSession {
   SessionDescription publisher_offer = 22;
   SyncState sync_state = 23;
   bool use_single_peer_connection = 24;
+
+  // NEXT ID: 26
 }
 
 // room info that should not be returned to clients