## PreRequisites
You need to install the OpenSSL development libraries as well. Here's how to fix both issues:
Install Required Dependencies
For Debian/Ubuntu systems (which you appear to be using based on the ⁠apt-get command):


```sh

sudo apt-get install libpcre3 libpcre3-dev libssl-dev

```



This command will install:
	•	`⁠libpcre3` and ⁠`libpcre3-dev` - For the `PCRE library` (needed for the HTTP rewrite module)
	
	•	`⁠libssl-dev` - For the `OpenSSL` development files (needed for SSL modules)


#### Download

1. Download latest nginx source code from [Nginx](https://nginx.org/en/download.html)
	today [nginx-1.25.3](https://nginx.org/download/nginx-1.25.3.tar.gz)
2. Download RTMP Module from [github](https://github.com/arut/nginx-rtmp-module)


### Extract

1. Extract downloaded nginx 
```Bash
tar zxvf nginx-1.25.3.tar.gz
```

2. change directories to extracted nginx directory
3. configure build
```Bash
./configure \
	--prefix=/usr/local/nginx \
	--sbin-path=/usr/local/sbin/nginx \
	--add-module=../nginx-rtmp-module
	
```

4. make 
5. make install


### Stats

copy `stats.xsl` from `nginx-rtmp-module` to `nginx/html` 
change permissions if neccessary


### nginx.conf

```

user zinn;
worker_processes 1;

#error_log  logs/error.log;
#error_log  logs/error.log  notice;
#error_log  logs/error.log  info;

#pid        logs/nginx.pid;
events {
    worker_connections 1024;
}

rtmp {

    server {

        listen 1935;

        chunk_size 4000;
        
        # maps to rtmp://host:1935/radio
        application radio {

            # enable live streaming
            live on;

            # record first 1K of stream
            # record all;
            # record_path /tmp/av;
            # record_max_size 1K;

            # append current timestamp to each flv
            # record_unique on;
            # publish only from localhost
            # deny publish all;
			allow publish all;

            allow play all;
        }
    }
}

# HTTP can be used for accessing RTMP stats
http {

    server {

        include mime.types;
        default_type application/octet-stream;

        #log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
        #                  '$status $body_bytes_sent "$http_referer" '
        #                  '"$http_user_agent" "$http_x_forwarded_for"';

        #access_log  logs/access.log  main;
        sendfile on;
        #tcp_nopush     on;

        #keepalive_timeout  0;
        keepalive_timeout 65;

        listen 8080;
        server_name pi-streamer;


        location / {
            root html;
            index index.html index.htm;
        }

        # This URL provides RTMP statistics in XML
        location /stat {
            rtmp_stat all;

            # Use this stylesheet to view XML as web page
            # in browser
            rtmp_stat_stylesheet stat.xsl;
        }

        location /stat.xsl {
            # XML stylesheet to view RTMP stats.
            # Copy stat.xsl wherever you want
            # and put the full directory path here
            root html;
        }

        # location /hls {
        #     # Serve HLS fragments
        #     types {
        #         application/vnd.apple.mpegurl m3u8;
        #         video/mp2t ts;
        #     }
        #     root /tmp;
        #     add_header Cache-Control no-cache;
        # }

        # location /dash {
        #     # Serve DASH fragments
        #     root /tmp;
        #     add_header Cache-Control no-cache;
        # }
    }
}

```



```sh
# DID NOT WORK
❯ ffmpeg5.1 -re -i http://10.50.90.33:5004/auto/v7.1 \
	-threads 0 \
	-pix_fmt yuv420p \
	-vcodec libx264 \
	-profile:v baseline \
	-deblock 1:0 \
	-bitrate 500k \
	-tune zerolatency \
	-x264opts keyint=30 \
	-acodec aac \
	-ar 48000 \
	-ac 2 \
	-b:a 128k \
	-preset veryfast \
	-crf 23 \
	-bufsize 500k \
	-maxrate 500k \
	-hide_banner \
	-loglevel info \
	-f flv "rtmp://10.50.20.2:1935/ingest/channel7"

```


```sh
# Works but has pumping
❯ ffmpeg5.1 -re -i http://10.50.90.33:5004/auto/v7.1  -threads 3 -hide_banner \
  -pix_fmt yuv420p -vcodec libx264 -profile:v baseline -deblock 1:0 \
  -bitrate 1000k -bufsize 1600k -maxrate 1000k \
  -tune zerolatency -x264opts keyint=30 -preset veryfast \
  -acodec aac -ar 48000 -ac 2 -b:a 128k \
  -f flv "rtmp://10.50.20.2:1935/ingest/channel7"

```