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# ngx\_http\_f4f\_module

* [示例配置](/nginx-docs/he-xin-gong-neng/http/ngx_http_f4f_module.md#example_configuration)
* [指令](/nginx-docs/he-xin-gong-neng/http/ngx_http_f4f_module.md#directives)
  * [f4f](/nginx-docs/he-xin-gong-neng/http/ngx_http_f4f_module.md#f4f)
  * [f4f\_buffer\_size](/nginx-docs/he-xin-gong-neng/http/ngx_http_f4f_module.md#f4f_buffer_size)

`ngx_http_f4f_module` 模块为 Adobe HTTP 动态流（HDS）提供服务端支持。

该模块以 `/videoSeg1-Frag1` 形式处理 HTTP 动态流请求，使用 `videoSeg1.f4x` 索引文件从 `videoSeg1.f4f` 文件中提取所需的片段。该模块是 Apache 的 Adobe f4f 模块（HTTP Origin Module）的替代品。

它需要通过 Adobe 的 f4fpackager 进行预处理，有关详细信息，请参阅相关文档。

> 此模块作为我们[商业订阅](http://nginx.com/products/?_ga=2.62027116.1975223854.1508572582-1890203964.1497190280)的一部分。

## 示例配置 <a href="#example_configuration" id="example_configuration"></a>

```
location /video/ {
    f4f;
    ...
}
```

## 指令 <a href="#directives" id="directives"></a>

### f4f

|       - | 说明       |
| ------: | -------- |
|  **语法** | **f4f**; |
|  **默认** | ——       |
| **上下文** | location |

开启针对 `location` 的模块处理。

### f4f\_buffer\_size

|       - | 说明                               |
| ------: | -------------------------------- |
|  **语法** | **f4f4f\_buffer\_sizef** `size`; |
|  **默认** | f4f\_buffer\_size 512k;          |
| **上下文** | http、server、location             |

设置用于读取 `.f4x` 索引文件的缓冲区的 `size` （大小）。

## 原文档

<http://nginx.org/en/docs/http/ngx_http_f4f_module.html>


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