package rmaker_webrtc_signal

Get desktop application:
View/edit binary Protocol Buffers messages

Used in: WebrtcSignalPayload

• string peer_id = 1

• string payload = 2

  Standard ICE candidate JSON

--- Commands (App → Device) ---

Used in: WebrtcSignalPayload

• string peer_id = 1

• optional SessionDescription offer = 2

Used in: WebrtcSignalPayload

• string peer_id = 1

Fragmentation support. When a serialized protobuf message exceeds the transport limit (~2KB), it is split into chunks. Each chunk is wrapped in a WebrtcSignalPayload with only 'fragment' set (no payload oneof). The receiver reassembles all chunks by offset, then unpacks the full protobuf message.

Used in: WebrtcSignalPayload

• uint32 offset = 1

• uint32 total_len = 2

• bytes data = 3

  Raw chunk bytes of the serialized protobuf

Used in: WebrtcSignalPayload

• WebrtcSignalStatus status = 1

• repeated SignalingMessage messages = 2

All responses include an optional 'messages' field for piggybacking queued signaling messages (answer, ICE candidates) onto any response. This eliminates the need for a separate poll round-trip when messages are already available at response time.

Used in: WebrtcSignalPayload

• WebrtcSignalStatus status = 1

• string peer_id = 2

• repeated SignalingMessage messages = 3

Used in: WebrtcSignalPayload

• WebrtcSignalStatus status = 1

• repeated SignalingMessage messages = 2

Structured SDP

Used in: CmdOffer, SignalingMessage

• string sdp = 1

• string type = 2

  "offer" or "answer"

A single outbound signaling message from device (in poll response). SDP answers use structured SessionDescription. ICE candidates use standard JSON format.

Used in: RespIceCandidate, RespOffer, RespPoll

• WebrtcSignalMsgType type = 1

• oneof content

  • SessionDescription session_desc = 2

    For TypeAnswer

  • string ice_candidate_json = 3

    For TypeIceCandidateMsg — standard JSON

Used in: SignalingMessage, WebrtcSignalPayload

• TypeCmdOffer = 0

• TypeRespOffer = 1

• TypeCmdPoll = 2

• TypeRespPoll = 3

• TypeCmdIceCandidate = 4

• TypeRespIceCandidate = 5

• TypeAnswer = 6

• TypeIceCandidateMsg = 7

--- Envelope ---

• WebrtcSignalMsgType msg = 1

• uint32 version = 2

• optional FragmentInfo fragment = 3

• oneof payload

  • CmdOffer cmd_offer = 10

  • RespOffer resp_offer = 11

  • CmdPoll cmd_poll = 12

  • RespPoll resp_poll = 13

  • CmdIceCandidate cmd_ice_candidate = 14

  • RespIceCandidate resp_ice_candidate = 15

Used in: RespIceCandidate, RespOffer, RespPoll

• Success = 0

• Fail = 1

• InvalidParam = 2

• Pending = 3