gpac.schema.json

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "GPAC MP4Box declaration schema",
  "$defs": {
    "mp4ra_boxes": {},
    "box_descendant": {
      "if": {
        "type": "object",
        "properties": {
          "@Type": {
            "type": "string"
          }
        },
        "required": ["@Type"]
      },
      "then": {
        "$ref": "#/$defs/box"
      }
    },
    "box": {
      "type": "object",
      "if": {
        "properties": {
          "@Type": {
            "type": "string",
            "$ref": "#/$defs/mp4ra_boxes"
          }
        },
        "required": ["@Type"]
      },
      "then": {
        "properties": {
          "@Size": {
            "anyOf": [
              { "type": "integer" },
              { "type": "string", "pattern": "^[0-9]+$" }
            ]
          },
          "@Type": {
            "type": "string",
            "description": "fourcc of the box",
            "pattern": "^[^\\x00-\\x1F\\x7F]{4}$"
          },
          "@Version": {
            "anyOf": [
              { "type": "integer" },
              { "type": "string", "pattern": "^[0-9]+$" }
            ]
          },
          "@Flags": {
            "anyOf": [
              { "type": "integer" },
              { "type": "string", "pattern": "^[0-9]+$" }
            ],
            "description": "Combined flags in base 10"
          },
          "@Specification": { "type": "string" },
          "@Container": { "type": "string" }
        },
        "patternProperties": {
          "^(?![@#]).+": {
            "anyOf": [
              {
                "type": "array",
                "items": {
                  "$ref": "#/$defs/box_descendant"
                }
              },
              { "$ref": "#/$defs/box_descendant" }
            ]
          }
        },
        "additionalProperties": true,
        "required": ["@Type"]
      }
    }
  },
  "type": "object",
  "properties": {
    "IsoMediaFile": {
      "type": "object",
      "description": "Root box of the file",
      "patternProperties": {
        "^(?![@#]).+": {
          "anyOf": [
            {
              "type": "array",
              "items": {
                "$ref": "#/$defs/box"
              }
            },
            { "$ref": "#/$defs/box" }
          ]
        }
      },
      "additionalProperties": true
    },
    "manualDump": {
      "type": "boolean",
      "description": "If true, the conformance file was manually dumped"
    },
    "mp4boxVersion": {
      "type": "string",
      "description": "First line of 'MP4Box -version'"
    }
  },
  "required": ["IsoMediaFile", "mp4boxVersion"]
}