{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://yukihamada.github.io/openformats/movie/v1.json",
  "title": "movie.json v1 — open movie / video timeline format",
  "description": "1 本 = 1 JSON。ショット・カット・音声・字幕・トランジションを時間軸で記述し、レンダリング (ffmpeg/Remotion 等) へ変換可能。MIT。",
  "allOf": [{ "$ref": "https://yukihamada.github.io/openformats/core/envelope/v1.json" }],
  "type": "object",
  "required": ["kind", "id", "timeline"],
  "properties": {
    "kind": { "const": "movie" },
    "format": {
      "type": "object",
      "properties": {
        "width": { "type": "integer", "default": 1920 },
        "height": { "type": "integer", "default": 1080 },
        "fps": { "type": "number", "default": 30 },
        "duration_sec": { "type": "number" },
        "aspect": { "type": "string", "examples": ["16:9", "9:16", "1:1", "4:5"] }
      },
      "additionalProperties": true
    },
    "timeline": {
      "type": "array",
      "description": "トラックの集合。映像・音声・字幕を分けて持つ。",
      "items": {
        "type": "object",
        "required": ["id", "type", "clips"],
        "properties": {
          "id": { "type": "string" },
          "type": { "type": "string", "enum": ["video", "audio", "subtitle", "overlay", "music"] },
          "clips": {
            "type": "array",
            "items": {
              "type": "object",
              "required": ["start_sec", "duration_sec"],
              "properties": {
                "start_sec": { "type": "number" },
                "duration_sec": { "type": "number" },
                "src": { "type": "string", "description": "素材参照 (image.json / voice.json / music.json の id も可)。" },
                "in_sec": { "type": "number", "description": "素材内の開始位置。" },
                "text": { "type": "string", "description": "subtitle 用。" },
                "transition": { "type": "string", "enum": ["cut", "fade", "dissolve", "wipe", "slide"], "default": "cut" },
                "transition_sec": { "type": "number", "default": 0 },
                "effects": { "type": "array", "items": { "type": "object", "additionalProperties": true } },
                "transform": {
                  "type": "object",
                  "properties": {
                    "x": { "type": "number" }, "y": { "type": "number" },
                    "scale": { "type": "number" }, "rotate_deg": { "type": "number" },
                    "opacity": { "type": "number" }
                  },
                  "additionalProperties": true
                }
              },
              "additionalProperties": true
            }
          }
        },
        "additionalProperties": true
      }
    },
    "renditions": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "format": { "type": "string", "examples": ["mp4", "webm", "gif"] },
          "path": { "type": "string" },
          "sha256": { "type": "string", "pattern": "^[a-f0-9]{64}$" },
          "duration_sec": { "type": "number" }
        },
        "additionalProperties": true
      }
    }
  }
}