Protocol¶

This section documents the FCast protocol details, which can be found in the latest version page.

Version History¶

Version 3¶

General Changes

• Added support for media item metadata
• Added support for media playlists
• Added support for receiver event subscription of media and keypress events
• Improved multi-device state synchronization

Message Changes

• PlayMessage: Added volume and metadata fields
• PlaybackUpdateMessage: Added itemIndex field and allow other fields except generationTime and state to be null

New Opcodes

• 14: Initial
• 15: PlayUpdate
• 16: SetPlaylistItem
• 17: SubscribeEvent
• 18: UnsubscribeEvent
• 19: EventMessage

Version 2¶

Message Changes

• PlayMessage: Added speed and headers fields
• PlaybackUpdateMessage: Added generationTime, duration, and speed fields
• VolumeUpdateMessage: Added generationTime field

New Opcodes

• 9: PlaybackError
• 10: SetSpeed
• 11: Version
• 12: Ping
• 13: Pong

Version 1¶

Initial Version