{
  "$defs": {
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      "additionalProperties": false,
      "properties": {
        "alignment": {
          "additionalProperties": {
            "type": "string"
          },
          "required": [
            "camera_to_csi",
            "geometry_frame_clock",
            "lidar_to_csi",
            "radar_to_csi",
            "sensor_to_geometry"
          ],
          "type": "object"
        },
        "carla_accel": {
          "additionalProperties": true,
          "type": "object"
        },
        "geometry": {
          "additionalProperties": false,
          "properties": {
            "frame_count": {
              "minimum": 1,
              "type": "integer"
            },
            "frames": {
              "items": {
                "$ref": "#/$defs/geometryFrame"
              },
              "minItems": 1,
              "type": "array"
            }
          },
          "required": [
            "frame_count",
            "frames"
          ],
          "type": "object"
        },
        "scenario": {
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        },
        "schema_version": {
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        },
        "streams": {
          "items": {
            "$ref": "#/$defs/sensorStream"
          },
          "minItems": 1,
          "type": "array"
        },
        "time_bases": {
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          "properties": {
            "csi_rate_hz": {
              "exclusiveMinimum": 0,
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            },
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              "type": "number"
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                "type": "array"
              },
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            },
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              "exclusiveMinimum": 0,
              "type": "number"
            }
          },
          "required": [
            "csi_rate_hz",
            "geometry_rate_hz",
            "rates_by_modality_hz",
            "sensor_rate_hz"
          ],
          "type": "object"
        }
      },
      "required": [
        "schema_version",
        "scenario",
        "time_bases",
        "geometry",
        "streams",
        "alignment"
      ],
      "type": "object"
    },
    "countMap": {
      "additionalProperties": {
        "minimum": 0,
        "type": "integer"
      },
      "type": "object"
    },
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      "additionalProperties": false,
      "properties": {
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          "format": "date-time",
          "type": "string"
        },
        "data_file_count": {
          "minimum": 1,
          "type": "integer"
        },
        "data_size_bytes": {
          "minimum": 1,
          "type": "integer"
        },
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          "const": "scene2wave_dataset"
        },
        "dataset_version": {
          "type": "string"
        },
        "distributions": {
          "additionalProperties": false,
          "properties": {
            "profile": {
              "$ref": "#/$defs/countMap"
            },
            "state": {
              "$ref": "#/$defs/countMap"
            },
            "town": {
              "$ref": "#/$defs/countMap"
            }
          },
          "required": [
            "town",
            "state",
            "profile"
          ],
          "type": "object"
        },
        "excluded": {
          "items": {
            "type": "string"
          },
          "type": "array",
          "uniqueItems": true
        },
        "formal_samples": {
          "minimum": 1,
          "type": "integer"
        },
        "included_modalities": {
          "items": {
            "type": "string"
          },
          "type": "array",
          "uniqueItems": true
        },
        "self_contained": {
          "const": true
        },
        "source_code_revision": {
          "type": [
            "string",
            "null"
          ]
        },
        "source_experiment": {
          "type": "string"
        },
        "source_manifest_sha256": {
          "pattern": "^[0-9a-f]{64}$",
          "type": "string"
        }
      },
      "required": [
        "dataset_name",
        "dataset_version",
        "created_at_utc",
        "formal_samples",
        "data_file_count",
        "data_size_bytes",
        "distributions",
        "included_modalities",
        "excluded",
        "self_contained"
      ],
      "type": "object"
    },
    "geometryFrame": {
      "additionalProperties": false,
      "properties": {
        "frame_id": {
          "type": "integer"
        },
        "geometry_index": {
          "minimum": 0,
          "type": "integer"
        },
        "time_s": {
          "minimum": 0,
          "type": "number"
        }
      },
      "required": [
        "frame_id",
        "geometry_index",
        "time_s"
      ],
      "type": "object"
    },
    "observedFrame": {
      "additionalProperties": false,
      "properties": {
        "frame_id": {
          "type": "integer"
        },
        "geometry_index": {
          "minimum": 0,
          "type": "integer"
        },
        "nearest_geometry_frame_id": {
          "type": "integer"
        },
        "policy": {
          "type": "string"
        },
        "relative_path": {
          "type": "string"
        },
        "time_s": {
          "minimum": 0,
          "type": "number"
        }
      },
      "required": [
        "frame_id",
        "geometry_index",
        "nearest_geometry_frame_id",
        "policy",
        "relative_path",
        "time_s"
      ],
      "type": "object"
    },
    "plannedSample": {
      "additionalProperties": false,
      "properties": {
        "frame_id": {
          "type": "integer"
        },
        "geometry_index": {
          "minimum": 0,
          "type": "integer"
        },
        "policy": {
          "type": "string"
        },
        "sample_index": {
          "minimum": 0,
          "type": "integer"
        },
        "target_time_s": {
          "minimum": 0,
          "type": "number"
        }
      },
      "required": [
        "frame_id",
        "geometry_index",
        "policy",
        "sample_index",
        "target_time_s"
      ],
      "type": "object"
    },
    "radarDetection": {
      "additionalProperties": false,
      "properties": {
        "altitude": {
          "description": "Vertical detection angle in radians.",
          "type": "number"
        },
        "azimuth": {
          "description": "Horizontal detection angle in radians.",
          "type": "number"
        },
        "depth": {
          "description": "Range in metres.",
          "minimum": 0,
          "type": "number"
        },
        "velocity": {
          "description": "Relative radial velocity in m/s.",
          "type": "number"
        }
      },
      "required": [
        "velocity",
        "azimuth",
        "altitude",
        "depth"
      ],
      "type": "object"
    },
    "radarFrame": {
      "items": {
        "$ref": "#/$defs/radarDetection"
      },
      "type": "array"
    },
    "sampleIndexRecord": {
      "additionalProperties": false,
      "properties": {
        "archive_bytes": {
          "minimum": 1,
          "type": "integer"
        },
        "archive_path": {
          "pattern": "^data/main_training/.+\\.tar$",
          "type": "string"
        },
        "archive_sha256": {
          "pattern": "^[0-9a-f]{64}$",
          "type": "string"
        },
        "bandwidth_hz": {
          "exclusiveMinimum": 0,
          "type": "number"
        },
        "carrier_frequency_hz": {
          "exclusiveMinimum": 0,
          "type": "number"
        },
        "contains_empty_cir": {
          "type": "boolean"
        },
        "csi_sampling_rate_hz": {
          "exclusiveMinimum": 0,
          "type": "number"
        },
        "num_subcarriers": {
          "minimum": 1,
          "type": "integer"
        },
        "profile": {
          "minLength": 1,
          "type": "string"
        },
        "relative_path": {
          "pattern": "^data/main_training/",
          "type": "string"
        },
        "sample_id": {
          "minLength": 1,
          "type": "string"
        },
        "scenario": {
          "minLength": 1,
          "type": "string"
        },
        "state": {
          "enum": [
            "static",
            "10kmh",
            "20kmh",
            "40kmh",
            "60kmh"
          ],
          "type": "string"
        },
        "subcarrier_spacing_hz": {
          "exclusiveMinimum": 0,
          "type": "number"
        },
        "town": {
          "pattern": "^Town[0-9]+$",
          "type": "string"
        },
        "valid_cir": {
          "type": "boolean"
        }
      },
      "required": [
        "sample_id",
        "relative_path",
        "town",
        "state",
        "profile",
        "scenario",
        "valid_cir",
        "contains_empty_cir",
        "carrier_frequency_hz",
        "bandwidth_hz",
        "subcarrier_spacing_hz",
        "num_subcarriers",
        "csi_sampling_rate_hz",
        "archive_path",
        "archive_bytes",
        "archive_sha256"
      ],
      "type": "object"
    },
    "sampleMetadata": {
      "additionalProperties": false,
      "properties": {
        "channel": {
          "additionalProperties": false,
          "properties": {
            "contains_empty_cir": {
              "type": "boolean"
            },
            "dominant_link_state": {
              "type": "string"
            },
            "empty_cir_fraction": {
              "maximum": 1,
              "minimum": 0,
              "type": "number"
            },
            "link_sequence_class": {
              "type": "string"
            },
            "los_frame_fraction": {
              "maximum": 1,
              "minimum": 0,
              "type": "number"
            },
            "material_scattering_profile": {
              "type": "string"
            },
            "material_scattering_scale": {
              "minimum": 0,
              "type": "number"
            },
            "mean_path_count": {
              "minimum": 0,
              "type": "number"
            },
            "nlos_frame_fraction": {
              "maximum": 1,
              "minimum": 0,
              "type": "number"
            },
            "propagation_state_class": {
              "type": "string"
            },
            "rms_delay_spread_mean_s": {
              "minimum": 0,
              "type": "number"
            },
            "valid_cir": {
              "type": "boolean"
            },
            "wireless_condition_profile": {
              "type": "string"
            }
          },
          "required": [
            "valid_cir",
            "contains_empty_cir",
            "empty_cir_fraction"
          ],
          "type": "object"
        },
        "dataset": {
          "additionalProperties": false,
          "properties": {
            "profile": {
              "type": "string"
            },
            "role": {
              "type": "string"
            },
            "split_group": {
              "type": "string"
            },
            "state": {
              "type": "string"
            },
            "subset": {
              "const": "main_training"
            },
            "town": {
              "type": "string"
            }
          },
          "required": [
            "subset",
            "profile",
            "town",
            "state"
          ],
          "type": "object"
        },
        "duration_s": {
          "exclusiveMinimum": 0,
          "type": "number"
        },
        "geometry": {
          "additionalProperties": false,
          "properties": {
            "cav_end_position_m": {
              "$ref": "#/$defs/xyPosition"
            },
            "cav_start_position_m": {
              "$ref": "#/$defs/xyPosition"
            },
            "mean_rsu_cav_distance_m": {
              "minimum": 0,
              "type": "number"
            },
            "rsu_position_m": {
              "$ref": "#/$defs/xyPosition"
            }
          },
          "type": "object"
        },
        "metadata_version": {
          "const": 2
        },
        "paths": {
          "additionalProperties": false,
          "properties": {
            "alignment_index": {
              "const": "carla/alignment_index.json"
            },
            "carla": {
              "const": "carla"
            },
            "sionna": {
              "const": "sionna"
            }
          },
          "required": [
            "carla",
            "sionna",
            "alignment_index"
          ],
          "type": "object"
        },
        "provenance": {
          "additionalProperties": false,
          "properties": {
            "carla_cache_key_hash": {
              "pattern": "^[0-9a-f]{64}$",
              "type": "string"
            }
          },
          "type": "object"
        },
        "radio": {
          "additionalProperties": false,
          "properties": {
            "bandwidth_hz": {
              "exclusiveMinimum": 0,
              "type": "number"
            },
            "carrier_frequency_hz": {
              "exclusiveMinimum": 0,
              "type": "number"
            },
            "num_subcarriers": {
              "minimum": 1,
              "type": "integer"
            },
            "sampling_rate_hz": {
              "exclusiveMinimum": 0,
              "type": "number"
            },
            "subcarrier_spacing_hz": {
              "exclusiveMinimum": 0,
              "type": "number"
            }
          },
          "required": [
            "carrier_frequency_hz",
            "bandwidth_hz",
            "subcarrier_spacing_hz",
            "num_subcarriers",
            "sampling_rate_hz"
          ],
          "type": "object"
        },
        "ray_tracing": {
          "additionalProperties": false,
          "properties": {
            "diffraction": {
              "type": "boolean"
            },
            "max_depth": {
              "minimum": 0,
              "type": "integer"
            },
            "num_samples": {
              "minimum": 1,
              "type": "integer"
            },
            "reflection": {
              "type": "boolean"
            },
            "scattering": {
              "type": "boolean"
            }
          },
          "type": "object"
        },
        "sample_id": {
          "minLength": 1,
          "type": "string"
        },
        "scenario": {
          "minLength": 1,
          "type": "string"
        },
        "sensor_context": {
          "additionalProperties": false,
          "properties": {
            "birdview": {
              "additionalProperties": false,
              "properties": {
                "enabled": {
                  "type": "boolean"
                },
                "fov_deg": {
                  "type": "number"
                },
                "height_m": {
                  "type": "number"
                },
                "image_size_x": {
                  "minimum": 1,
                  "type": "integer"
                },
                "image_size_y": {
                  "minimum": 1,
                  "type": "integer"
                },
                "rate_hz": {
                  "exclusiveMinimum": 0,
                  "type": "number"
                },
                "yaw_deg": {
                  "type": "number"
                }
              },
              "type": "object"
            },
            "spawn_center_m": {
              "additionalProperties": false,
              "properties": {
                "x": {
                  "type": "number"
                },
                "y": {
                  "type": "number"
                },
                "z": {
                  "type": "number"
                }
              },
              "required": [
                "x",
                "y"
              ],
              "type": "object"
            }
          },
          "type": "object"
        }
      },
      "required": [
        "metadata_version",
        "sample_id",
        "scenario",
        "dataset",
        "duration_s",
        "radio",
        "channel",
        "geometry",
        "ray_tracing",
        "paths"
      ],
      "type": "object"
    },
    "sensorStream": {
      "additionalProperties": false,
      "properties": {
        "actor": {
          "type": "string"
        },
        "enabled_in_this_pass": {
          "type": "boolean"
        },
        "expected_count": {
          "minimum": 0,
          "type": "integer"
        },
        "filename_suffix": {
          "type": "string"
        },
        "modality": {
          "type": "string"
        },
        "observed_count": {
          "minimum": 0,
          "type": "integer"
        },
        "observed_frames": {
          "items": {
            "$ref": "#/$defs/observedFrame"
          },
          "type": "array"
        },
        "phase_frame_id": {
          "type": "integer"
        },
        "phase_source": {
          "type": "string"
        },
        "planned_samples": {
          "items": {
            "$ref": "#/$defs/plannedSample"
          },
          "type": "array"
        },
        "rate_hz": {
          "exclusiveMinimum": 0,
          "type": "number"
        },
        "relative_dir": {
          "type": "string"
        },
        "sensor_name": {
          "type": "string"
        },
        "stream_id": {
          "type": "string"
        }
      },
      "required": [
        "actor",
        "enabled_in_this_pass",
        "expected_count",
        "filename_suffix",
        "modality",
        "observed_count",
        "observed_frames",
        "planned_samples",
        "rate_hz",
        "relative_dir",
        "sensor_name",
        "stream_id"
      ],
      "type": "object"
    },
    "xyPosition": {
      "additionalProperties": false,
      "properties": {
        "x": {
          "description": "CARLA world-frame x coordinate in metres.",
          "type": "number"
        },
        "y": {
          "description": "CARLA world-frame y coordinate in metres.",
          "type": "number"
        }
      },
      "required": [
        "x",
        "y"
      ],
      "type": "object"
    }
  },
  "$id": "https://huggingface.co/datasets/scene2wave/scene2wave_dataset/raw/main/metadata/json_schema.json",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "description": "Validate each file against the matching definition under $defs.",
  "title": "Scene2Wave packaged release JSON schemas"
}