{
    "$schema": "http://json-schema.org/draft-04/schema#",
    "type": "object",
    "allOf": [{
        "$ref": "core#/definitions/room_event"
    }],
    "properties": {
        "content": {
            "type": "object",
            "properties": {
                "call_id": {
                    "type": "string",
                    "description": "The ID of the call this event relates to."
                },
                "candidates": {
                    "type": "array",
                    "description": "Array of objects describing the candidates.",
                    "items": {
                        "type": "object",
                        "properties": {
                            "sdpMid": {
                                "type": "string",
                                "description": "The SDP media type this candidate is intended for."
                            },
                            "sdpMLineIndex": {
                                "type": "number",
                                "description": "The index of the SDP 'm' line this candidate is intended for."
                            },
                            "candidate": {
                                "type": "string",
                                "description": "The SDP 'a' line of the candidate."
                            }
                        },
                        "required": ["candidate", "sdpMLineIndex", "sdpMid"]
                    }
                },
                "version": {
                    "type": "integer",
                    "description": "The version of the VoIP specification this messages adheres to. This specification is version 0."
                }
            },
            "required": ["call_id", "candidates", "version"]
        },
        "type": {
            "type": "string",
            "enum": ["m.call.candidates"]
        }
    }
}