Live thumbnail using MJPEG and nginx_push_stream.
Usage
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://example.com/live/stream -vf "scale=159:-1" -r 3 frames/parts/thumb%9d.jpg
Run the broadcaster:
$ python broadcaster.py
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 broadcaster.py
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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