图生视频（增强版功能）

{
  "contentType": "application/json",
  "properties": {
    "base64": {
      "description": "原图 base64，前端与 image 传同一值。透传给上游",
      "examples": [
        "data:image/png;base64,IMG..."
      ],
      "type": "string",
      "x-i18n": {
        "en-US": {
          "description": "Original image base64; same value as image on the client; pass-through"
        }
      }
    },
    "image": {
      "description": "原图 base64（带前缀：data:image/png;base64,...），图生视频的底图。透传给上游，后端结构体未声明",
      "examples": [
        "data:image/png;base64,IMG..."
      ],
      "type": "string",
      "x-i18n": {
        "en-US": {
          "description": "Original image base64 (data URL prefix). I2V base image; pass-through; not declared in backend struct"
        }
      }
    },
    "mode": {
      "description": "生成模式（透传给上游）。FAST(默认)/RELAX/TURBO",
      "enum": [
        "FAST",
        "RELAX",
        "TURBO"
      ],
      "examples": [
        "FAST"
      ],
      "type": "string",
      "x-apifox-enum": [
        {
          "description": "默认",
          "name": "",
          "value": "FAST"
        },
        {
          "description": "",
          "name": "",
          "value": "RELAX"
        },
        {
          "description": "",
          "name": "",
          "value": "TURBO"
        }
      ],
      "x-i18n": {
        "en-US": {
          "description": "Generation mode (pass-through). FAST(default)/RELAX/TURBO"
        }
      }
    },
    "motion": {
      "description": "运动强度（透传给上游）。low(默认)/high",
      "enum": [
        "low",
        "high"
      ],
      "examples": [
        "low"
      ],
      "type": "string",
      "x-apifox-enum": [
        {
          "description": "默认",
          "name": "",
          "value": "low"
        },
        {
          "description": "",
          "name": "",
          "value": "high"
        }
      ],
      "x-i18n": {
        "en-US": {
          "description": "Motion strength (pass-through). low(default)/high"
        }
      }
    },
    "notifyHook": {
      "description": "回调地址, 为空时使用全局notifyHook",
      "type": "string",
      "x-i18n": {
        "en-US": {
          "description": "Callback URL; falls back to the global notifyHook when empty"
        }
      }
    },
    "prompt": {
      "description": "视频内容/运动描述",
      "examples": [
        "the cat slowly blinks and looks around"
      ],
      "type": "string",
      "x-i18n": {
        "en-US": {
          "description": "video content / motion description"
        }
      }
    },
    "state": {
      "description": "自定义参数",
      "type": "string",
      "x-i18n": {
        "en-US": {
          "description": "The quality of the image that will be generated. `hd` creates images with finer detail and greater consistency. This parameter only supports `dall-e-3`."
        }
      }
    },
    "taskId": {
      "description": "可选。若对【已有 MJ 任务】生成视频，传该任务 ID（走后端 relay-mj.go:690 分支，需要 taskId）；图生视频（传 image）则不需要",
      "type": "string",
      "x-i18n": {
        "en-US": {
          "description": "Optional. For video from an existing MJ task, pass that task ID (relay-mj.go:690 needs taskId); not needed for I2V with image"
        }
      }
    }
  },
  "required": [
    "prompt",
    "image"
  ]
}