# nginx rtmp server

## 手機推流 --> nginx rtmp server --> OBS拉流 --> OBS推到實況平台

### nginx.conf

worker_processes 1;

error_log logs/rtmp_error.log debug;

events {
    worker_connections 1024;
}

rtmp {
    server {
        listen 1935;
        chunk_size 4096;

        application live1 {
            live on;
            publish_notify on;
            record off;
        }
    }
}

* 手機推到: `rtmp://127.0.0.1:1935/live1/` (在外面時請把ip改成外網可連到的實體ip)
* 串流碼: `streamkey001`
* OBS影片播放器拉流(或用VLC播放器)
* 拉流網址: `rtmp://127.0.0.1:1935/live1/streamkey001`

## 一推多平台

### nginx.conf

worker_processes 1;

error_log logs/rtmp_error.log debug;

events {
    worker_connections 1024;
}

rtmp {
    server {
        listen 1935;
        chunk_size 4096;

        application live2 {
            live on;
            publish_notify on;
            
            meta copy;
            push rtmp://site1/streamkey;
            push rtmp://site2/streamkey;
            push rtmp://site3/streamkey;
        }
    }
}

* OBS推流網址: `rtmp://127.0.0.1:1935/live2/`

## 以上兩者整合使用

### nginx.conf

worker_processes 1;

error_log logs/rtmp_error.log debug;

events {
    worker_connections 1024;
}

rtmp {
    server {
        listen 1935;
        chunk_size 4096;
        
        application live1 {
            live on;
            publish_notify on;
            record off;
        }

        application live2 {
            live on;
            publish_notify on;
            
            meta copy;
            push rtmp://site1/streamkey;
            push rtmp://site2/streamkey;
            push rtmp://site3/streamkey;
        }
    }
}

* **手機推到nginx rtmp server**
* 推流網址: `rtmp://127.0.0.1:1935/live1/` (在外面時請把ip改成外網可連到的實體ip)
* 串流碼: `streamkey001`
* **OBS or 影片播放器拉流**
* 拉流網址: `rtmp://127.0.0.1:1935/live1/streamkey001`
* **OBS推流到多平台**
* 推流網址: `rtmp://127.0.0.1:1935/live2/`

## 補充說明
### 1
:::info
改完nginx.conf設定記得要重啟nginx設定值才會生效
:::

### 2
:::info
nginx.conf裡的`worker_processes 1;`
如果預設值的1個processes算力不夠用,可以試看看調高到2~4以上
通常是發生在一推多平台推太多個導致單processes算力不夠力

改法像是這樣:
`worker_processes 4;`

不然也可以調成auto看看
`worker_processes auto;`

這個參數通常是調比CPU執行緒數量低
假設CPU是8核8緒 就是調到8以下
假設CPU是8核16緒 就是調到16以下
而且還要多預留算力給同電腦下的遊戲,OBS,視訊之類的使用
:::

## 資料來源

* [How to set up your own private RTMP server using nginx](https://obsproject.com/forum/resources/how-to-set-up-your-own-private-rtmp-server-using-nginx.50/)
* [NGINX-based Media Streaming Server](https://github.com/sergey-dryabzhinsky/nginx-rtmp-module)
* [nginx-rtmp-win32](https://github.com/illuspas/nginx-rtmp-win32) (win32版)

{%hackmd /@Eotones/SkY_4JVTS %}

###### tags: `OBS`, `nginx`, `rtmp`