> ## Documentation Index
> Fetch the complete documentation index at: https://docs.apimart.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Vidu Q3(pro/turbo) 视频生成

>  - 异步处理模式，返回任务ID用于后续查询
- 支持文生视频、图生视频、首尾帧生视频
- 支持 540p / 720p / 1080p 分辨率
- 时长范围 1-16 秒，默认开启音频直出 

```bash cURL theme={null}
curl --request POST \
  --url https://api.apimart.ai/v1/videos/generations \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
    "model": "viduq3-pro",
    "prompt": "一只猫在弹钢琴，镜头缓缓拉近",
    "duration": 8,
    "resolution": "1080p",
    "aspect_ratio": "16:9"
  }'
```

```python Python theme={null}
import requests

url = "https://api.apimart.ai/v1/videos/generations"

payload = {
    "model": "viduq3-pro",
    "prompt": "一只猫在弹钢琴，镜头缓缓拉近",
    "duration": 8,
    "resolution": "1080p",
    "aspect_ratio": "16:9"
}

headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.json())
```

```javascript JavaScript theme={null}
const url = "https://api.apimart.ai/v1/videos/generations";

const payload = {
  model: "viduq3-pro",
  prompt: "一只猫在弹钢琴，镜头缓缓拉近",
  duration: 8,
  resolution: "1080p",
  aspect_ratio: "16:9"
};

const headers = {
  "Authorization": "Bearer <token>",
  "Content-Type": "application/json"
};

fetch(url, {
  method: "POST",
  headers: headers,
  body: JSON.stringify(payload)
})
  .then(response => response.json())
  .then(data => console.log(data))
  .catch(error => console.error('Error:', error));
```

```go Go theme={null}
package main

import (
    "bytes"
    "encoding/json"
    "fmt"
    "io/ioutil"
    "net/http"
)

func main() {
    url := "https://api.apimart.ai/v1/videos/generations"

    payload := map[string]interface{}{
        "model":        "viduq3-pro",
        "prompt":       "一只猫在弹钢琴，镜头缓缓拉近",
        "duration":     8,
        "resolution":   "1080p",
        "aspect_ratio": "16:9",
    }

    jsonData, _ := json.Marshal(payload)

    req, _ := http.NewRequest("POST", url, bytes.NewBuffer(jsonData))
    req.Header.Set("Authorization", "Bearer <token>")
    req.Header.Set("Content-Type", "application/json")

    client := &http.Client{}
    resp, err := client.Do(req)
    if err != nil {
        panic(err)
    }
    defer resp.Body.Close()

    body, _ := ioutil.ReadAll(resp.Body)
    fmt.Println(string(body))
}
```

```java Java theme={null}
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import java.net.URI;

public class Main {
    public static void main(String[] args) throws Exception {
        String url = "https://api.apimart.ai/v1/videos/generations";

        String payload = """
        {
          "model": "viduq3-pro",
          "prompt": "一只猫在弹钢琴，镜头缓缓拉近",
          "duration": 8,
          "resolution": "1080p",
          "aspect_ratio": "16:9"
        }
        """;

        HttpClient client = HttpClient.newHttpClient();
        HttpRequest request = HttpRequest.newBuilder()
            .uri(URI.create(url))
            .header("Authorization", "Bearer <token>")
            .header("Content-Type", "application/json")
            .POST(HttpRequest.BodyPublishers.ofString(payload))
            .build();

        HttpResponse<String> response = client.send(request,
            HttpResponse.BodyHandlers.ofString());

        System.out.println(response.body());
    }
}
```

```php PHP theme={null}
<?php

$url = "https://api.apimart.ai/v1/videos/generations";

$payload = [
    "model" => "viduq3-pro",
    "prompt" => "一只猫在弹钢琴，镜头缓缓拉近",
    "duration" => 8,
    "resolution" => "1080p",
    "aspect_ratio" => "16:9"
];

$ch = curl_init($url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($payload));
curl_setopt($ch, CURLOPT_HTTPHEADER, [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
]);

$response = curl_exec($ch);
curl_close($ch);

echo $response;
?>
```

```ruby Ruby theme={null}
require 'net/http'
require 'json'
require 'uri'

url = URI("https://api.apimart.ai/v1/videos/generations")

payload = {
  model: "viduq3-pro",
  prompt: "一只猫在弹钢琴，镜头缓缓拉近",
  duration: 8,
  resolution: "1080p",
  aspect_ratio: "16:9"
}

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = "Bearer <token>"
request["Content-Type"] = "application/json"
request.body = payload.to_json

response = http.request(request)
puts response.body
```

```swift Swift theme={null}
import Foundation

let url = URL(string: "https://api.apimart.ai/v1/videos/generations")!

let payload: [String: Any] = [
    "model": "viduq3-pro",
    "prompt": "一只猫在弹钢琴，镜头缓缓拉近",
    "duration": 8,
    "resolution": "1080p",
    "aspect_ratio": "16:9"
]

var request = URLRequest(url: url)
request.httpMethod = "POST"
request.setValue("Bearer <token>", forHTTPHeaderField: "Authorization")
request.setValue("application/json", forHTTPHeaderField: "Content-Type")
request.httpBody = try? JSONSerialization.data(withJSONObject: payload)

let task = URLSession.shared.dataTask(with: request) { data, response, error in
    if let error = error {
        print("Error: \(error)")
        return
    }

    if let data = data, let responseString = String(data: data, encoding: .utf8) {
        print(responseString)
    }
}

task.resume()
```

```csharp C# theme={null}
using System;
using System.Net.Http;
using System.Text;
using System.Threading.Tasks;

class Program
{
    static async Task Main(string[] args)
    {
        var url = "https://api.apimart.ai/v1/videos/generations";

        var payload = @"{
            ""model"": ""viduq3-pro"",
            ""prompt"": ""一只猫在弹钢琴，镜头缓缓拉近"",
            ""duration"": 8,
            ""resolution"": ""1080p"",
            ""aspect_ratio"": ""16:9""
        }";

        using var client = new HttpClient();
        client.DefaultRequestHeaders.Add("Authorization", "Bearer <token>");

        var content = new StringContent(payload, Encoding.UTF8, "application/json");
        var response = await client.PostAsync(url, content);
        var result = await response.Content.ReadAsStringAsync();

        Console.WriteLine(result);
    }
}
```

```json 200 theme={null}
{
  "code": 200,
  "data": [
    {
      "status": "submitted",
      "task_id": "task_xxxxxxxxxx"
    }
  ]
}
```

```json 400 theme={null}
{
  "error": {
    "code": 400,
    "message": "请求参数无效",
    "type": "invalid_request_error"
  }
}
```

```json 401 theme={null}
{
  "error": {
    "code": 401,
    "message": "身份验证失败，请检查您的API密钥",
    "type": "authentication_error"
  }
}
```

```json 402 theme={null}
{
  "error": {
    "code": 402,
    "message": "账户余额不足，请充值后再试",
    "type": "payment_required"
  }
}
```

```json 429 theme={null}
{
  "error": {
    "code": 429,
    "message": "请求过于频繁，请稍后再试",
    "type": "rate_limit_error"
  }
}
```

```json 500 theme={null}
{
  "error": {
    "code": 500,
    "message": "服务器内部错误，请稍后重试",
    "type": "server_error"
  }
}
```

## 认证

**Authorization** `string` *required*

所有接口均需要使用 Bearer Token 进行认证

获取 API Key：

访问 [API Key 管理页面](https://apimart.ai/keys) 获取您的 API Key

使用时在请求头中添加：

```
Authorization: Bearer YOUR_API_KEY
```

## 请求参数

**model** `string` *required*

视频生成模型名称

支持的模型：

* `viduq3-pro` - Vidu Q3 Pro
* `viduq3-turbo` - Vidu Q3 Turbo

**nsfw\_check** `boolean` (default: false)

是否在提交视频任务前执行内容审核。

* `true`：使用 `omni-moderation-latest` 审核提示词和输入图片
* `false` 或不传：不发起审核请求，不增加审核成本与延迟（默认）

**prompt** `string` *required*

文本描述，最长 **2000 个字符**

文生视频时必填，图生视频和首尾帧模式下可选。

示例：`"一只猫在弹钢琴，镜头缓缓拉近"`

**duration** `integer` (default: 5)

视频时长（秒）

范围：`1` 到 `16`

默认值：`5`

**resolution** `string` (default: 720p)

视频分辨率

可选值：

* `540p` - 标清
* `720p` - 高清（默认）
* `1080p` - 全高清

默认值：`720p`

**aspect\_ratio** `string`

视频宽高比（仅文生视频模式可用）

可选值：

* `16:9` - 横屏
* `9:16` - 竖屏
* `4:3` - 传统比例
* `3:4` - 竖版传统比例
* `1:1` - 方形

> [!WARNING]
>
> 此参数仅在文生视频模式下可用（不传 `image_urls` 时）。

**image\_urls** `array\<url\>`

图片 URL 数组，用于图生视频

系统根据图片数量自动判断生成模式：

* **0 张**（不传）：文生视频模式
* **1 张**：图生视频模式（以该图为起始画面）
* **2 张**：首尾帧生视频模式（第一张=首帧，第二张=尾帧）

示例：`["https://example.com/photo.jpg"]`

> [!WARNING]
>
> * 最多支持 2 张图片
> * 首尾帧模式必须传恰好 2 张图片
> * 只要传入 `image_urls`（无论 1 张还是 2 张），就不能同时设置 `aspect_ratio` 参数，视频比例将由图片自动决定

**audio** `boolean` (default: true)

是否生成音频（对白、音效）

默认值：`true`

如需静音视频，设置为 `false`。

**seed** `integer`

种子整数，用于控制生成内容的随机性

取值范围：`-1` \~ `2^32-1` 之间的整数

> [!NOTE]
>
> * 相同的请求下，模型收到不同的 seed 值（如：不指定 seed 值或令 seed 取值为 -1，会使用随机数替代），将生成不同的结果
> * 相同的请求下，模型收到相同的 seed 值，会生成类似的结果，但不保证完全一致

## 自动路由规则

系统根据 `image_urls` 的图片数量自动判断生成模式：

| 图片数 | 模式 | 说明 |
| - | - | - |
| 0 张（不传） | 文生视频 | 纯文本描述生成 |
| 1 张 | 图生视频 | 以该图为起始画面 |
| 2 张 | 首尾帧生视频 | 第一张=首帧，第二张=尾帧 |

## 参数支持矩阵

| 参数 | 文生视频 | 图生视频 | 首尾帧 |
| - | - | - | - |
| `model` | ✅ 必填 | ✅ 必填 | ✅ 必填 |
| `prompt` | ✅ 必填 | 选填 | 选填 |
| `image_urls` | - | ✅ 1张 | ✅ 2张 |
| `duration` | ✅ 1-16秒 | ✅ 1-16秒 | ✅ 1-16秒 |
| `resolution` | ✅ | ✅ | ✅ |
| `aspect_ratio` | ✅ | - | - |
| `audio` | ✅ | ✅ | ✅ |
| `seed` | ✅ | ✅ | ✅ |

## 响应

**code** `integer`

响应状态码，成功时为 200

**data** `array`

返回数据数组

**数组元素**

**status** `string`

任务状态，初始提交时为 `submitted`

**task\_id** `string`

任务唯一标识符，用于查询任务状态和结果

## 使用场景

### 场景 1：文生视频

```json theme={null}
{
  "model": "viduq3-pro",
  "prompt": "一只猫在弹钢琴，镜头缓缓拉近",
  "duration": 8,
  "resolution": "1080p",
  "aspect_ratio": "16:9"
}
```

### 场景 2：图生视频（单张图片）

```json theme={null}
{
  "model": "viduq3-pro",
  "prompt": "人物缓缓转身微笑",
  "image_urls": ["https://example.com/photo.jpg"],
  "duration": 5,
  "resolution": "720p"
}
```

### 场景 3：首尾帧生视频

```json theme={null}
{
  "model": "viduq3-pro",
  "prompt": "人物从站立缓缓坐下",
  "image_urls": [
    "https://example.com/first.jpg",
    "https://example.com/last.jpg"
  ],
  "duration": 8
}
```

### 场景 4：关闭音频（静音视频）

```json theme={null}
{
  "model": "viduq3-pro",
  "prompt": "日落海景延时摄影",
  "duration": 10,
  "resolution": "1080p",
  "audio": false
}
```

> [!NOTE]
>
> **查询任务结果**
>
> 视频生成为异步任务，提交后会返回 `task_id`。使用 [获取任务状态](https://docs.apimart.ai/cn/api-reference/tasks/status.md) 接口查询生成进度和结果。


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