---
name: "VideoContext.playbackRate"
mode: "api"
versionRequirements:
  - { name: "基础库", version: "2.21.8" }
title: "NativeVideoContext.playbackRate - 设置倍速播放"
---

## VideoContext.playbackRate

> [VERSION] 基础库 >= 2.21.8

### 描述

设置倍速播放

### 参数

`Params`

| 参数 | 类型 | 必填 | 描述 |
| --- | --- | --- | --- |
| `rate` | `number` | 是 | 倍率，支持 0.5/0.8/1.0/1.25/1.5/2.0 |

### 返回值

无


### 示例代码

#### 设置 2 倍速播放

```ts
const videoCtx = ty.createNativeVideoContext('myVideo');
videoCtx.playbackRate(2.0);
```