https://github.com/arut/nginx-rtmp-module.git

NGINX-based Media Streaming Server

nginx-rtmp-module

Project blog

http://nginx-rtmp.blogspot.com

Wiki manual

https://github.com/arut/nginx-rtmp-module/wiki/Directives

Google group

https://groups.google.com/group/nginx-rtmp

https://groups.google.com/group/nginx-rtmp-ru (Russian)

Donation page (Paypal etc)

http://arut.github.com/nginx-rtmp-module/

Features

  • RTMP/HLS/MPEG-DASH live streaming

  • RTMP Video on demand FLV/MP4, playing from local filesystem or HTTP

  • Stream relay support for distributed streaming: push & pull models

  • Recording streams in multiple FLVs

  • H264/AAC support

  • Online transcoding with FFmpeg

  • HTTP callbacks (publish/play/record/update etc)

  • Running external programs on certain events (exec)

  • HTTP control module for recording audio/video and dropping clients

  • Advanced buffering techniques to keep memory allocations at a minimum level for faster streaming and low memory footprint

  • Proved to work with Wirecast, FMS, Wowza, JWPlayer, FlowPlayer, StrobeMediaPlayback, ffmpeg, avconv, rtmpdump, flvstreamer and many more

  • Statistics in XML/XSL in machine- & human- readable form

  • Linux/FreeBSD/MacOS/Windows

Build

cd to NGINX source directory & run this:

./configure --add-module=/path/to/nginx-rtmp-module
make
make install

Several versions of nginx (1.3.14 - 1.5.0) require http_ssl_module to be added as well:

./configure --add-module=/path/to/nginx-rtmp-module --with-http_ssl_module

For building debug version of nginx add --with-debug

./configure --add-module=/path/to-nginx/rtmp-module --with-debug

Read more about debug log

Windows limitations

Windows support is limited. These features are not supported

  • execs
  • static pulls
  • auto_push

RTMP URL format

rtmp://rtmp.example.com/app[/name]

app - should match one of application {} blocks in config

name - interpreted by each application can be empty

Multi-worker live streaming

Module supports multi-worker live streaming through automatic stream pushing to nginx workers. This option is toggled with rtmp_auto_push directive.

Example nginx.conf

rtmp {

    server {

        listen 1935;

        chunk_size 4000;

        # TV mode: one publisher, many subscribers
application mytv { # 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
allow publish 127.0.0.1;
deny publish all; #allow play all;
} # Transcoding (ffmpeg needed)
application big {
live on; # On every pusblished stream run this command (ffmpeg)
# with substitutions: $app/${app}, $name/${name} for application & stream name.
#
# This ffmpeg call receives stream from this application &
# reduces the resolution down to 32x32. The stream is the published to
# 'small' application (see below) under the same name.
#
# ffmpeg can do anything with the stream like video/audio
# transcoding, resizing, altering container/codec params etc
#
# Multiple exec lines can be specified. exec ffmpeg -re -i rtmp://localhost:1935/$app/$name -vcodec flv -acodec copy -s 32x32
-f flv rtmp://localhost:1935/small/${name};
} application small {
live on;
# Video with reduced resolution comes here from ffmpeg
} application webcam {
live on; # Stream from local webcam
exec_static ffmpeg -f video4linux2 -i /dev/video0 -c:v libx264 -an
-f flv rtmp://localhost:1935/webcam/mystream;
} application mypush {
live on; # Every stream published here
# is automatically pushed to
# these two machines
push rtmp1.example.com;
push rtmp2.example.com:1934;
} application mypull {
live on; # Pull all streams from remote machine
# and play locally
pull rtmp://rtmp3.example.com pageUrl=www.example.com/index.html;
} application mystaticpull {
live on; # Static pull is started at nginx start
pull rtmp://rtmp4.example.com pageUrl=www.example.com/index.html name=mystream static;
} # video on demand
application vod {
play /var/flvs;
} application vod2 {
play /var/mp4s;
} # Many publishers, many subscribers
# no checks, no recording
application videochat { live on; # The following notifications receive all
# the session variables as well as
# particular call arguments in HTTP POST
# request # Make HTTP request & use HTTP retcode
# to decide whether to allow publishing
# from this connection or not
on_publish http://localhost:8080/publish; # Same with playing
on_play http://localhost:8080/play; # Publish/play end (repeats on disconnect)
on_done http://localhost:8080/done; # All above mentioned notifications receive
# standard connect() arguments as well as
# play/publish ones. If any arguments are sent
# with GET-style syntax to play & publish
# these are also included.
# Example URL:
# rtmp://localhost/myapp/mystream?a=b&c=d # record 10 video keyframes (no audio) every 2 minutes
record keyframes;
record_path /tmp/vc;
record_max_frames 10;
record_interval 2m; # Async notify about an flv recorded
on_record_done http://localhost:8080/record_done; } # HLS # For HLS to work please create a directory in tmpfs (/tmp/hls here)
# for the fragments. The directory contents is served via HTTP (see
# http{} section in config)
#
# Incoming stream must be in H264/AAC. For iPhones use baseline H264
# profile (see ffmpeg example).
# This example creates RTMP stream from movie ready for HLS:
#
# ffmpeg -loglevel verbose -re -i movie.avi -vcodec libx264
# -vprofile baseline -acodec libmp3lame -ar 44100 -ac 1
# -f flv rtmp://localhost:1935/hls/movie
#
# If you need to transcode live stream use 'exec' feature.
#
application hls {
live on;
hls on;
hls_path /tmp/hls;
} # MPEG-DASH is similar to HLS application dash {
live on;
dash on;
dash_path /tmp/dash;
}
}
} # HTTP can be used for accessing RTMP stats
http { server { listen 8080; # 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 /path/to/stat.xsl/;
} 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;
}
}
}

Multi-worker streaming example

rtmp_auto_push on;

rtmp {
server {
listen 1935; application mytv {
live on;
}
}
}

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