Category Archives: broadcast fmle

RTMP Servers

Real-Time Messaging Protocol or RTMP was developed originally by Macromedia, which then became Adobe. It was a system to implement streaming of video, text and audio over the internet between a flash player and a server with the RTMP setup.

Using fragments between the server and the user, it maintains a stable connection and because of that it has low latency, meaning that there is a very short delay, between the server and the user. The delay is perhaps 1 or 2 seconds.

The RTMP servers available are Adobe Media Server, Red5, Wowza Streaming Engine, Nginx RTMP server and a few more, but this 4 are the most common, although Adobe is very expensive and Red5 is difficult, personally I prefer Wowza RTMP, which has a number of advantages, we will talk about this on another post.

Going back to RTMP, it is a TCP-based protocol which maintains persistent stable connections and allows low-latency communication. To deliver streams smoothly and transmit as much information as possible, it splits streams into fragments, and their size is negotiated dynamically between the client and server.

RTMP servers are ideal for live streaming but also for Ondemand video streaming, it is also a necessary component for live video chats.

RTMP Server, how it works

The server must be setup with a media server, like Adobe or Red5, then the video stream connects to the RTMP installed on the server, the video stream could be a laptop with a software installed, this software is an encoder, there are a number of them, OBS Studio, but the most common is the Adobe, FMLE, which you can download free at http://hosting-marketers.com/flashmedialiveencoder_3.2_wwe_signed.msi (for windows computers, Mac computers you can download directly at Adobe site.)

On the encoder you enter the server RTMP, which would be something like this:

fmle encoder
click on the image to see larger size

rtmp://server_IP/live/stream_name

Then you connect and start the broadcast. this stream will go directly the RTMP server and you can now setup a player for your users, if you using a RTMP player you will need to use a flash player, but using Wowza Streaming Engine on the RTMP server it converts the stream to a HLS protocol which can be used on many other platforms as well, like smartphones and HTML5 Players. Although the HLS has the latency issue because of the flash players end of live it is nearly impossible not to use it. Nowadays, with a good configuration you can reduce the latency to 3 or 4 seconds.

So we have, YOU on your laptop with a camera and an encoder >>> your internet connection and the RTMP Server connection >>> and finally the player on your site broadcasting your live event. Or your video files.

testing a red5 live streaming rtmp, plus creating a player for the rtmp

We created an app for live streaming here.

Now we going to test it and create a player code so we can start streaming to our site.

Do you have fmle installed on your computer? You need to download it from adobe.

Lets test it first, go to

http://209.95.39.220/test/

enter the rtmp of your app. the rtmp is

rtmp://server IP/app

so:

rtmp://RED5_SERVER_IP/live221

Enter this URL on the long string and click connect, now click “Publish” your camera will start,  and now click “Play” if the 2 players show the same thing you are on. Everything is good.

OK, now we have to work on “stream name”. We talked about rtmp, and we tested it, the testing site if you go back to it

http://209.95.39.220/test/

it has a stream name, “testing” this must be on both the publishing and on the player.

so it must be on the FMLE and on the player code.

fmle

(click on the image to have a better view)

the FMLE on the left you have your settings, frame per second, bitrate, your camera, format.

on the red5 server your bitrate should be about 320kbps higher then that you need a lot of RAM and server resources.

lets configure the fmle as the image shows.

on the right on the FMS URL enter the rtmp and on the stream enter your chosen stream name, in this case I entered “live” see image.

click connect, and then below click “Start”

you now streaming to your server.

 

Now creating a player for this stream. Go to

http://www.hosting-marketers.com/generator/

at the bottom on the “Streamer” enter the rtmp:

rtmp://RED5_SERVER_IP/live221

and on “Stream / File Name” enter the stream name, which we used on the FMLE, “live”

Click  “Generate Code!”

Take the “Preview & Embed” code, paste on your site and that’s it.

You can also use an image on the player, it will show before the user click to play,  enter the image URL on “Overlay Poster”