04:41:38 info: Sendspin.SDK.Client.SendspinHostService[0] Starting Sendspin host service
04:41:38 info: Sendspin.SDK.Connection.SendspinListener[0] WebSocket server listening on port 19964
04:41:38 info: Sendspin.SDK.Connection.SendspinListener[0] Sendspin listener started on ws://0.0.0.0:19964 (path: /sendspin)
04:41:38 info: Sendspin.SDK.Discovery.MdnsServiceAdvertiser[0] Local IP addresses for mDNS: 192.168.64.3
04:41:38 info: Sendspin.SDK.Discovery.MdnsServiceAdvertiser[0] mDNS Service Profile: FullName=sendspin-dotnet-client-id._sendspin._tcp.local, ServiceName=_sendspin._tcp, HostName=sendspin-dotnet-client-id.sendspin.local, Port=19964
04:41:38 info: Sendspin.SDK.Discovery.MdnsServiceAdvertiser[0] Advertising Sendspin client: sendspin-dotnet-client-id on port 19964 (path=/sendspin)
04:41:38 info: Sendspin.SDK.Client.SendspinHostService[0] Sendspin host service started - waiting for server connections
04:41:38 info: Sendspin.SDK.Connection.SendspinListener[0] WebSocket connection opened from 127.0.0.1
04:41:38 info: Sendspin.SDK.Client.SendspinHostService[0] New server connection: 4c2a8f24
04:41:38 info: Sendspin.SDK.Client.SendspinHostService[0] Sending client/hello: {"type":"client/hello","payload":{"client_id":"sendspin-dotnet-client-id","name":"sendspin-dotnet-client","version":1,"supported_roles":["metadata@v1"],"player@v1_support":{"supported_formats":[{"codec":"flac","channels":1,"sample_rate":8000,"bit_depth":16},{"codec":"pcm","channels":1,"sample_rate":8000,"bit_depth":16},{"codec":"flac","channels":2,"sample_rate":44100,"bit_depth":16},{"codec":"pcm","channels":2,"sample_rate":44100,"bit_depth":16}],"buffer_capacity":2000000,"supported_commands":["volume","mute"]},"artwork@v1_support":{"channels":[{"source":"album","format":"jpeg","media_width":256,"media_height":256}]},"device_info":{"product_name":"Conformance Dotnet Client","manufacturer":"Sendspin Conformance","software_version":"0.1.0"}}}
04:41:38 info: Sendspin.SDK.Client.SendspinClientService[0] Server hello received: sendspin-go-server (sendspin-go server), reason: playback, roles: metadata@v1
04:41:38 info: Sendspin.SDK.Client.SendspinHostService[0] Arbitration: Accepting sendspin-go-server (no existing connection)
04:41:38 info: Sendspin.SDK.Client.SendspinHostService[0] Server connected: sendspin-go-server (sendspin-go server)
04:41:38 info: Sendspin.SDK.Client.SendspinClientService[0] Sending initial client/state: {"type":"client/state","payload":{"state":"synchronized","player":{"volume":100,"muted":false}}}
04:41:39 info: Sendspin.SDK.Connection.IncomingConnection[0] Server closed connection
04:41:39 info: Sendspin.SDK.Client.SendspinHostService[0] Server disconnected: sendspin-go-server
04:41:39 info: Sendspin.SDK.Client.SendspinHostService[0] Stopping Sendspin host service
04:41:39 info: Sendspin.SDK.Discovery.MdnsServiceAdvertiser[0] Stopping mDNS advertisement for sendspin-dotnet-client-id
04:41:39 info: Sendspin.SDK.Connection.SendspinListener[0] Stopping Sendspin listener
04:41:39 info: Sendspin.SDK.Connection.SendspinListener[0] Stopping WebSocket server
04:41:39 info: Sendspin.SDK.Client.SendspinHostService[0] Sendspin host service stopped
04:41:39 info: Sendspin.SDK.Client.SendspinHostService[0] Stopping Sendspin host service
04:41:39 info: Sendspin.SDK.Client.SendspinHostService[0] Sendspin host service stopped
{
  "status": "ok",
  "reason": null,
  "implementation": "sendspin-dotnet",
  "role": "client",
  "scenario_id": "server-initiated-metadata",
  "initiator_role": "server",
  "preferred_codec": "none",
  "client_name": "sendspin-dotnet-client",
  "client_id": "sendspin-dotnet-client-id",
  "server": {
    "server_id": "sendspin-go-server",
    "server_name": "sendspin-go server",
    "connection_reason": "playback"
  },
  "peer_hello": null,
  "metadata": {
    "update_count": 1,
    "received": {
      "title": "Almost Silent",
      "artist": "Sendspin Conformance",
      "album_artist": "Sendspin",
      "album": "Protocol Fixtures",
      "artwork_url": "https://example.invalid/almost-silent.jpg",
      "year": 2026,
      "track": 1,
      "repeat": "all",
      "shuffle": false,
      "progress": {
        "track_progress": 12000,
        "track_duration": 180000,
        "playback_speed": 1000
      }
    }
  }
}