Open Screen Protocol Capabilities Registry

This registry lists the known protocol capabilities used in the Open Screen Protocol. An Open Screen agent uses capabilities to inform other agents which protocol messages it understands.

Capability values 1-999 are reserved for use by the Open Screen Protocol itself. They are listed here for completeness, but are more fully described in the Open Screen Protocol.

Open Screen Protocol Capabilities

Id	Name	Description	Message Type IDs
1	receive-audio	Audio Receiver	22
2	receive-video	Video Receiver	23
3	receive-presentation	Presentation API Receiver	14,16,104,106,109,113
4	control-presentation	Presentation API Controller	15,16,103,105,107,108,110,113,121
5	receive-remote-playback	Remote Playback Receiver	17,115,117,119
6	control-remote-playback	Remote Playback Controller	18,20,21,114,116,118
7	receive-streaming	Streaming Receiver	24
8	send-streaming	Streaming Sender

Extension Capabilities

This table lists capabilities that other parties have reserved to extend the core protocol. Each extension should reserve a range of message type IDs and/or a list of additional fields that will be added to existing Open Screen Messages. (The entry below is just an example and not an actual registered extension.)

Id	Name	Organization	Description	Message Type IDs
1000	frobinate-xyzzy	FrobozzCo	Adds xyzzy capability	49-51, 8193-8199