视频延长

{
  "contentType": "application/json",
  "properties": {
    "duration": {
      "description": "视频生成时长\nv.3.5/v4/v4.5 : 5/8 (v3.5 1080p 无法使用 8)\nv5 : 5/8\nv5.5 : 5/8/10 (1080p 无法使用 10)\nv6 : 1~15",
      "type": "integer",
      "x-i18n": {
        "en-US": {
          "description": "Video generation duration\nv.3.5/v4/v4.5 : 5/8 (v3.5 1080p cannot be used 8)\nv5: 5/8\nv5.5 : 5/8/10 (1080p not available 10)\nv6: 1~15"
        }
      }
    },
    "model": {
      "description": "模型 \"v3.5\",\"v4\",\"v4.5\",\"v5\",“v5.5“,\"v6\"",
      "type": "string",
      "x-i18n": {
        "en-US": {
          "description": "Model \"v3.5\",\"v4\",\"v4.5\",\"v5\",\"v5.5\",\"v6\""
        }
      }
    },
    "motion_mode": {
      "description": "\"normal\",\"fast\". \"fast\" 不支持 8s, \"v5\" 不支持此字段",
      "type": "string",
      "x-i18n": {
        "en-US": {
          "description": "\"normal\",\"fast\". \"fast\" does not support 8s, \"v5\" does not support this field"
        }
      }
    },
    "prompt": {
      "description": "2048 Characters 以内",
      "type": "string",
      "x-i18n": {
        "en-US": {
          "description": "Within 2048 Characters"
        }
      }
    },
    "quality": {
      "description": "\"360p\",\"540p\",\"720p\",\"1080p\"",
      "type": "string"
    },
    "seed": {
      "type": "integer"
    },
    "source_video_id": {
      "description": "必传source_video_id 或 video_media_id",
      "type": "integer",
      "x-i18n": {
        "en-US": {
          "description": "Source_video_id or video_media_id must be passed"
        }
      }
    },
    "style": {
      "description": "风格，可选：\"anime\"、\"3d_animation\"、\"day\"、\"cyberpunk\"、\"comic\"，如非必要可不传",
      "type": "string",
      "x-i18n": {
        "en-US": {
          "description": "Style, optional: \"anime\", \"3d_animation\", \"day\", \"cyberpunk\", \"comic\", don't pass it if it's not necessary"
        }
      }
    },
    "video_media_id": {
      "description": "必传source_video_id 或 video_media_id",
      "type": "integer",
      "x-i18n": {
        "en-US": {
          "description": "Source_video_id or video_media_id must be passed"
        }
      }
    },
    "water_mark": {
      "type": "boolean"
    }
  },
  "required": [
    "prompt",
    "quality",
    "duration",
    "model",
    "water_mark"
  ]
}

"{\r\n    \"source_video_id\": 123123,\r\n    //\"video_media_id\":123123,\r\n    \"prompt\": \"across the universe\",\r\n    \"seed\": 123123,\r\n    \"quality\": \"540p\",\r\n    \"duration\": 8,\r\n    \"model\": \"v5\",\r\n    \"motion_mode\": \"normal\",\r\n    \"water_mark\": false\r\n}"