{
  "$schema": "http://json-schema.org/draft-04/schema#",
  "id": "https://mkvtoolnix.download/doc/mkvmerge-identification-output-schema-v2.json",
  "title": "mkvmerge identification output",
  "description": "The JSON output produced by mkvmerge's file identification mode",
  "type": "object",
  "properties": {
    "attachments": {
      "description": "an array describing the attachments found if any",
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "content_type": {
            "type": "string",
            "minLength": 1
          },
          "description": {
            "type": "string"
          },
          "file_name": {
            "type": "string"
          },
          "id": {
            "type": "integer",
            "minimum": 0
          },
          "size": {
            "type": "integer",
            "minimum": 0
          },
          "properties": {
            "type": "object",
            "properties": {
              "uid": {
                "type": "integer",
                "minimum": 0
              }
            },
            "additionalProperties": false
          },
          "type": {
            "type": "string"
          }
        },
        "additionalProperties": false,
        "required": [
          "file_name",
          "id",
          "properties",
          "size"
        ]
      }
    },
    "chapters": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "num_entries": {
            "type": "integer"
          }
        },
        "additionalProperties": false,
        "required": [
          "num_entries"
        ]
      }
    },
    "container": {
      "description": "information about the identified container",
      "type": "object",
      "properties": {
        "properties": {
          "description": "additional properties for the container varying by container format",
          "type": "object",
          "properties": {
            "container_type": {
              "description": "A unique number identifying the container type that's supposed to stay constant over all future releases of MKVToolNix",
              "type": "integer",
              "minLength": 1
            },
            "duration": {
              "description": "The file's/segment's duration in nanoseconds",
              "type": "integer",
              "minimum": 0
            },
            "is_providing_timecodes": {
              "description": "States whether or not the container has timestamps for the packets (e.g. Matroska, MP4) or not (e.g. SRT, MP3)",
              "type": "boolean"
            },
            "segment_uid": {
              "description": "A hexadecimal string of the segment's UID (only for Matroska files)",
              "type": "string",
              "minLength": 32,
              "maxLength": 32
            },
            "next_segment_uid": {
              "description": "A hexadecimal string of the next segment's UID (only for Matroska files)",
              "type": "string",
              "minLength": 32,
              "maxLength": 32
            },
            "previous_segment_uid": {
              "description": "A hexadecimal string of the previous segment's UID (only for Matroska files)",
              "type": "string",
              "minLength": 32,
              "maxLength": 32
            },
            "other_file": {
              "description": "The file name of an additional file processed as well",
              "type": "string",
              "minLength": 1
            },
            "playlist": {
              "description": "States whether or not the identified file is a playlist (e.g. MPLS) referring to several other files",
              "type": "boolean"
            },
            "playlist_chapters": {
              "description": "The number of chapters in a playlist if it is a one",
              "type": "integer",
              "minimum": 0
            },
            "playlist_duration": {
              "description": "The total duration in nanoseconds of all files referenced by the playlist if it is a one",
              "type": "integer",
              "minimum": 0
            },
            "playlist_size": {
              "description": "The total size in bytes of all files referenced by the playlist if it is a one",
              "type": "integer",
              "minimum": 0
            },
            "title": {
              "type": "string"
            }
          },
          "additionalProperties": false
        },
        "recognized": {
          "description": "States whether or not mkvmerge knows about the format",
          "type": "boolean"
        },
        "supported": {
          "description": "States whether or not mkvmerge can read the format",
          "type": "boolean"
        },
        "type": {
          "description": "A human-readable description/name for the container format",
          "type": "string",
          "minLength": 1
        }
      },
      "additionalProperties": false,
      "required": [
        "recognized",
        "supported"
      ]
    },
    "errors": {
      "type": "array",
      "items": {
        "type": "string"
      }
    },
    "file_name": {
      "description": "the identified file's name",
      "type": "string",
      "minLength": 1
    },
    "global_tags": {
      "type": "array",
      "items": {
      }
    },
    "identification_format_version": {
      "description": "The output format's version",
      "type": "integer",
      "minimum": 1
    },
    "track_tags": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "num_entries": {
            "type": "integer"
          },
          "track_id": {
            "type": "integer"
          }
        },
        "additionalProperties": false,
        "required": [
          "num_entries",
          "track_id"
        ]
      }
    },
    "tracks": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "codec": {
            "type": "string",
            "minLength": 1
          },
          "id": {
            "type": "integer",
            "minLength": 0
          },
          "type": {
            "type": "string"
          },
          "properties": {
            "type": "object",
            "properties": {
              "aac_is_sbr": {
                "type": "string",
                "enum": [
                  "true",
                  "false",
                  "unknown"
                ]
              },
              "audio_bits_per_sample": {
                "type": "integer",
                "minimum": 0
              },
              "audio_channels": {
                "type": "integer",
                "minimum": 0
              },
              "audio_sampling_frequency": {
                "type": "integer",
                "minimum": 0
              },
              "codec_id": {
                "type": "string"
              },
              "codec_private_data": {
                "type": "string"
              },
              "codec_private_length": {
                "type": "integer",
                "minimum": 0
              },
              "content_encoding_algorithms": {
                "type": "string",
                "minLength": 1
              },
              "default_duration": {
                "type": "integer",
                "minimum": 0
              },
              "default_track": {
                "type": "boolean"
              },
              "display_dimensions": {
                "type": "string",
                "pattern": "^[0-9]+x[0-9]+$"
              },
              "enabled_track": {
                "type": "boolean"
              },
              "forced_track": {
                "type": "boolean"
              },
              "language": {
                "type": "string"
              },
              "number": {
                "type": "integer",
                "minimum": 0
              },
              "packetizer": {
                "type": "string",
                "minLength": 1
              },
              "pixel_dimensions": {
                "type": "string",
                "pattern": "^[0-9]+x[0-9]+$"
              },
              "stereo_mode": {
                "type": "integer",
                "minimum": 0
              },
              "stream_id": {
                "type": "string",
                "pattern": "^[0-9a-f]{2}$"
              },
              "sub_stream_id": {
                "type": "string",
                "pattern": "^[0-9a-f]{2}$"
              },
              "tag_artist": {
                "type": "string"
              },
              "tag_bitsps": {
                "type": "string"
              },
              "tag_bps": {
                "type": "string"
              },
              "tag_fps": {
                "type": "string"
              },
              "tag_title": {
                "type": "string"
              },
              "text_subtitles": {
                "type": "boolean"
              },
              "track_name": {
                "type": "string"
              },
              "ts_pid": {
                "type": "integer",
                "minimum": 0
              },
              "uid": {
                "type": "integer",
                "minimum": 0
              }
            },
            "additionalProperties": false
          }
        },
        "additionalProperties": false,
        "required": [
          "codec",
          "id",
          "type"
        ]
      }
    },
    "warnings": {
      "type": "array",
      "items": {
        "type": "string"
      }
    }
  }
}