notes

nginx/Build nginx from source.md

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+## 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"
+
+```