{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "OmniCompass annotation schema 1.1",
  "$defs": {
    "video": {
      "type": "object",
      "properties": {
        "video_id": {
          "type": "string",
          "pattern": "^oc_[0-9]{3}$"
        },
        "video_path": {
          "type": "string",
          "minLength": 1
        },
        "duration_seconds": {
          "type": "number",
          "exclusiveMinimum": 0
        },
        "width": {
          "type": "integer",
          "minimum": 1
        },
        "height": {
          "type": "integer",
          "minimum": 1
        },
        "fps": {
          "type": "object",
          "properties": {
            "num": {
              "type": "integer",
              "minimum": 1
            },
            "den": {
              "type": "integer",
              "minimum": 1
            }
          },
          "required": [
            "num",
            "den"
          ],
          "additionalProperties": false
        },
        "has_audio": {
          "type": "boolean"
        },
        "domain": {
          "type": "string",
          "minLength": 1
        },
        "sub_category": {
          "type": "string",
          "minLength": 1
        },
        "tracks": {
          "type": "array",
          "minItems": 1,
          "uniqueItems": true,
          "items": {
            "enum": [
              "VL",
              "AV"
            ]
          }
        },
        "source": {
          "type": "object",
          "properties": {
            "dataset": {
              "type": "string",
              "minLength": 1
            },
            "video_id": {
              "type": "string",
              "minLength": 1
            },
            "url": {
              "type": [
                "string",
                "null"
              ]
            }
          },
          "required": [
            "dataset",
            "video_id",
            "url"
          ],
          "additionalProperties": false
        }
      },
      "required": [
        "video_id",
        "video_path",
        "duration_seconds",
        "width",
        "height",
        "fps",
        "has_audio",
        "domain",
        "sub_category",
        "tracks",
        "source"
      ],
      "additionalProperties": false
    },
    "question": {
      "oneOf": [
        {
          "type": "object",
          "properties": {
            "question_id": {
              "type": "string",
              "pattern": "^oc_[0-9]{3}_(vl|av)_tg_01$"
            },
            "video_id": {
              "type": "string",
              "pattern": "^oc_[0-9]{3}$"
            },
            "track": {
              "enum": [
                "VL",
                "AV"
              ]
            },
            "task": {
              "const": "TG"
            },
            "question": {
              "type": "object",
              "properties": {
                "text": {
                  "type": "string",
                  "minLength": 1
                },
                "text_image": {
                  "type": "string",
                  "minLength": 1
                }
              },
              "required": [
                "text",
                "text_image"
              ],
              "additionalProperties": false
            },
            "reference_image": {
              "type": "string",
              "minLength": 1
            },
            "ground_truth": {
              "type": "object",
              "properties": {
                "start_time": {
                  "type": "number"
                },
                "end_time": {
                  "type": "number"
                }
              },
              "required": [
                "start_time",
                "end_time"
              ],
              "additionalProperties": false
            }
          },
          "required": [
            "question_id",
            "video_id",
            "track",
            "task",
            "question",
            "reference_image",
            "ground_truth"
          ],
          "additionalProperties": false
        },
        {
          "type": "object",
          "properties": {
            "question_id": {
              "type": "string",
              "pattern": "^oc_[0-9]{3}_(vl|av)_sg_01$"
            },
            "video_id": {
              "type": "string",
              "pattern": "^oc_[0-9]{3}$"
            },
            "track": {
              "enum": [
                "VL",
                "AV"
              ]
            },
            "task": {
              "const": "SG"
            },
            "question": {
              "type": "object",
              "properties": {
                "text": {
                  "type": "string",
                  "minLength": 1
                },
                "text_image": {
                  "type": "string",
                  "minLength": 1
                }
              },
              "required": [
                "text",
                "text_image"
              ],
              "additionalProperties": false
            },
            "reference_image": {
              "type": "string",
              "minLength": 1
            },
            "given_interval": {
              "type": "array",
              "minItems": 2,
              "maxItems": 2,
              "items": {
                "type": "number"
              }
            },
            "ground_truth": {
              "type": "object",
              "properties": {
                "start_bbox": {
                  "type": "array",
                  "minItems": 4,
                  "maxItems": 4,
                  "items": {
                    "type": "number",
                    "minimum": 0,
                    "maximum": 1000
                  }
                },
                "end_bbox": {
                  "type": "array",
                  "minItems": 4,
                  "maxItems": 4,
                  "items": {
                    "type": "number",
                    "minimum": 0,
                    "maximum": 1000
                  }
                }
              },
              "required": [
                "start_bbox",
                "end_bbox"
              ],
              "additionalProperties": false
            }
          },
          "required": [
            "question_id",
            "video_id",
            "track",
            "task",
            "question",
            "reference_image",
            "given_interval",
            "ground_truth"
          ],
          "additionalProperties": false
        },
        {
          "type": "object",
          "properties": {
            "question_id": {
              "type": "string",
              "pattern": "^oc_[0-9]{3}_(vl|av)_qa_01$"
            },
            "video_id": {
              "type": "string",
              "pattern": "^oc_[0-9]{3}$"
            },
            "track": {
              "enum": [
                "VL",
                "AV"
              ]
            },
            "task": {
              "const": "QA"
            },
            "question": {
              "type": "object",
              "properties": {
                "text": {
                  "type": "string",
                  "minLength": 1
                },
                "text_image": {
                  "type": "string",
                  "minLength": 1
                }
              },
              "required": [
                "text",
                "text_image"
              ],
              "additionalProperties": false
            },
            "reference_image": {
              "type": "string",
              "minLength": 1
            },
            "options": {
              "type": "object",
              "properties": {
                "A": {
                  "type": "string",
                  "minLength": 1
                },
                "B": {
                  "type": "string",
                  "minLength": 1
                },
                "C": {
                  "type": "string",
                  "minLength": 1
                },
                "D": {
                  "type": "string",
                  "minLength": 1
                },
                "E": {
                  "type": "string",
                  "minLength": 1
                }
              },
              "required": [
                "A",
                "B",
                "C",
                "D",
                "E"
              ],
              "additionalProperties": false
            },
            "qa_type": {
              "type": "string",
              "minLength": 1
            },
            "ground_truth": {
              "type": "object",
              "properties": {
                "answer": {
                  "enum": [
                    "A",
                    "B",
                    "C",
                    "D",
                    "E"
                  ]
                }
              },
              "required": [
                "answer"
              ],
              "additionalProperties": false
            }
          },
          "required": [
            "question_id",
            "video_id",
            "track",
            "task",
            "question",
            "reference_image",
            "options",
            "qa_type",
            "ground_truth"
          ],
          "additionalProperties": false
        }
      ]
    }
  },
  "oneOf": [
    {
      "$ref": "#/$defs/video"
    },
    {
      "$ref": "#/$defs/question"
    }
  ]
}