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MJPEG broadcaster

Project description

Live thumbnail using MJPEG and nginx_push_stream.


Compile Nginx with nginx_push_stream support. The example config also uses lua-nginx-module and lua-resty-redis to store and serve old snapshots from Redis, but this module is optional. The Nginx configuration should be something like this:

$ LUAJIT_LIB=/usr/local/lib/ LUAJIT_INC=/usr/local/include/luajit-2.0 ./configure --add-module=../nginx-push-stream-module --add-module=../lua-nginx-module --with-pcre --with-ipv6 --with-ld-opt=-L/usr/local/lib

Now run Nginx with sample config:

$ nginx -c $PWD/nginx.conf

Make a directory to store the thumbs

$ mkdir -p frames/parts

Start ffmpeg to create thumbs for a channel (parts in this example):

$ ffmpeg -re -i rtmp:// -vf "scale=159:-1" -r 3 frames/parts/thumb%9d.jpg

Run the broadcaster:

$ python

If you prefer, install the script using pip and run it:

$ pip install live_thumb
$ broadcaster

Watch the movie with the example html:

$ open test.html

Or go to http://localhost:9080/sub/parts directly.

To also store the snapshots on redis, you should run the broadcaster with an extra env variable:

$ REDIS_HOST="localhost" REDIS_PORT=7000 python

The snapshots will be served from http://localhost:9080/snapshot/parts. You can also specify a timestamp: http://localhost:9080/snapshot/parts?timestamp=1396381230

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