> ## Documentation Index
> Fetch the complete documentation index at: https://apidoc.cometapi.com/llms.txt
> Use this file to discover all available pages before exploring further.
# 创建一个 Kling 多模态编辑任务
> 通过 CometAPI 创建一个 Kling 多模态视频编辑任务：POST /kling/v1/videos/multi-elements，以组合多个元素并异步生成视频。
使用此端点在你的会话和选择都准备就绪后提交最终的多模态视频编辑任务。
## 完整工作流
先从 [初始化待编辑视频](./initialize-video-for-editing) 开始，以获取你想编辑的片段对应的 `session_id`。
使用 [添加视频选区](./add-video-selection)，并在需要时使用 [预览已选视频区域](./preview-selected-video-area) 来优化编辑区域。
通过此端点发送 `session_id`、`edit_mode`、最终 `prompt` 以及任何可选生成设置，然后保存返回的任务 id 以便检查状态。
## 调用前须知
* 确保选区会话已经初始化
* 在消耗一次生成调用前，确认你的区域选择是正确的
* 在同一账号下，并使用初始化返回的准确 `session_id`，执行与选区相关的后续调用
* 将 `edit_mode` 设置为 `addition`、`swap` 或 `removal`
* 对于 `addition` 和 `swap`，提供 `image_list`；对于 `removal`，不要传 `image_list`
* 将 `duration` 作为字符串发送，例如 `"5"` 或 `"10"`；示例中明确传入 `"5"`
* 将此路由视为最终生成步骤，而不是准备步骤
* 仅在编辑工作流需要时添加 `image_list`、`negative_prompt`、`mode`、`duration`、`callback_url` 或 `external_task_id`
完整参数说明请参阅 [Kling API 文档](https://kling.ai/document-api/apiReference/model/multiElements)。
## OpenAPI
````yaml api/openapi/video/kling/multimodal-video-editing/post-create-task.openapi.json POST /kling/v1/videos/multi-elements
openapi: 3.1.0
info:
title: Create Task API
version: 1.0.0
description: >-
Submit the final Kling multimodal video-editing job after the selection
session is ready.
servers:
- url: https://api.cometapi.com
security:
- bearerAuth: []
paths:
/kling/v1/videos/multi-elements:
post:
summary: Create a Kling multimodal edit task
description: >-
Send the `session_id`, `edit_mode`, and final edit prompt after the
selection area has already been prepared.
operationId: create_task
requestBody:
required: true
content:
application/json:
schema:
type: object
required:
- session_id
- edit_mode
- prompt
allOf:
- if:
properties:
edit_mode:
const: addition
required:
- edit_mode
then:
required:
- image_list
- if:
properties:
edit_mode:
const: swap
required:
- edit_mode
then:
required:
- image_list
properties:
session_id:
type: string
description: >-
Selection session id returned by init-selection. Follow-up
calls must use the same account and exact session id.
edit_mode:
type: string
description: >-
Editing operation for the selected video region. Use
`addition` to add an element, `swap` to replace a selected
element, or `removal` to remove it.
enum:
- addition
- swap
- removal
prompt:
type: string
description: >-
Instruction describing the desired edit. Reference the
source video as `<<>>` and any reference image as
`<<>>`.
model_name:
type: string
description: >-
Kling model variant for the final edit task. Omit to use
`kling-v1-6`.
enum:
- kling-v1-6
default: kling-v1-6
image_list:
type: array
description: >-
Image references used by `addition` and `swap` tasks. Omit
this field for `removal` tasks.
minItems: 1
items:
type: object
required:
- image
properties:
image:
type: string
negative_prompt:
type: string
description: Elements to avoid in the edited result.
mode:
type: string
description: Generation mode. Use `std` or `pro`.
enum:
- std
- pro
duration:
type: string
description: Requested output duration in seconds.
callback_url:
type: string
description: Webhook URL to receive task status updates.
external_task_id:
type: string
description: >-
Custom task id for your own tracking. Must be unique per
account.
default:
session_id:
edit_mode: removal
prompt: Delete the selected object from <<>>
mode: std
duration: '5'
examples:
Default:
summary: Multi-elements edit task
value:
session_id:
edit_mode: removal
prompt: Delete the selected object from <<>>
mode: std
duration: '5'
Addition:
summary: Add an image element to the selected area
value:
session_id:
edit_mode: addition
image_list:
- image: https://your-image-host/object-to-add.jpg
prompt: >-
Add <<>> naturally into <<>> at the
selected area
mode: std
duration: '5'
Swap:
summary: Swap the selected element with an image reference
value:
session_id:
edit_mode: swap
image_list:
- image: https://your-image-host/new-object.jpg
prompt: >-
Use <<>> to replace the selected object in
<<>>
mode: std
duration: '5'
responses:
'200':
description: Task accepted.
content:
application/json:
schema:
type: object
required:
- code
- message
- data
properties:
code:
type: integer
message:
type: string
data:
type: object
properties:
task_id:
type: string
task_status:
type: string
created_at:
type: integer
updated_at:
type: integer
additionalProperties: true
x-codeSamples:
- lang: Shell
label: Default
source: |
curl https://api.cometapi.com/kling/v1/videos/multi-elements \
-H "Authorization: Bearer $COMETAPI_KEY" \
-H "Content-Type: application/json" \
-d '{
"session_id": "",
"edit_mode": "removal",
"prompt": "Delete the selected object from <<>>",
"mode": "std",
"duration": "5"
}'
- lang: Python
label: Default
source: |
import os
import requests
response = requests.post(
"https://api.cometapi.com/kling/v1/videos/multi-elements",
headers={"Authorization": "Bearer " + os.environ["COMETAPI_KEY"]},
json={
"session_id": "",
"edit_mode": "removal",
"prompt": "Delete the selected object from <<>>",
"mode": "std",
"duration": "5"
},
)
result = response.json()
print(result.get("code"), result.get("data", {}).get("task_id"))
- lang: JavaScript
label: Default
source: >
const response = await
fetch("https://api.cometapi.com/kling/v1/videos/multi-elements", {
method: "POST",
headers: {
Authorization: `Bearer ${process.env.COMETAPI_KEY}`,
"Content-Type": "application/json",
},
body: JSON.stringify({
"session_id": "",
"edit_mode": "removal",
"prompt": "Delete the selected object from <<>>",
"mode": "std",
"duration": "5"
}),
});
const result = await response.json();
console.log(result.code, result.data?.task_id);
components:
securitySchemes:
bearerAuth:
type: http
scheme: bearer
description: Bearer token authentication. Use your CometAPI key.
````