Indepth information about RTMP Server

Online video technology, known as Real-Time Messenger Protocol, or RTMP for short, has greatly influenced the growth of streaming internet video.

Professional broadcasters and streaming service providers widely use it to give live and on-demand programs to millions of viewers worldwide.

We’ll discuss the technical details of RTMP, describe how it functions, and go through some common RTMP streaming use cases in this post.

How Does RTMP Work?

A TCP-based protocol, RTMP, keeps connections for low-latency audio and video streaming open. Streams are divided into smaller units known as packets to enhance the amount of data that can be delivered smoothly. RTMP specifies the number of virtual channels that operate independently for the delivery of packets. This implies that audio and video are concurrently supplied on different channels.

The 3-step process

At a high level, Real-Time Messaging Protocol works as a three-step process.

Step 1: The handshake

After RTMP creates a TCP connection, it performs a handshake by having the client and server exchange three packets. These bundles are known as chunks.

The procedure seems as follows:

  • The client transmits a chunk to inform the server of the protocol version it is utilizing.

  • The client transmits another chunk with a timestamp before waiting for a response.

  • The server replies with an echo of the chunks it had received, along with a timestamp for when it did.

  • The server replies to the client’s final packet, a copy of the timestamp packet.

  • The handshake is deemed complete once the last packet exchange is finished.

STEP 2: The Connection

During the connection phase, the client and server exchange coded messages. The connection’s secret language is called Action Message Format (AMF). His conversation seeks to establish rapport so that streaming may start.

In essence, the client and server employ a message sequence during this phase to negotiate a connection.

technical information on rtmp

STEP 3: The Stream

Once the capture is complete, and the connection has been established successfully, the stream should be available. Despite the complexity of this process, technology is designed to facilitate speedy travel.

How To Set Up RTMP?

The Real-Time Messaging Protocol must be set up with an encoder (hardware or software), a sensing device that provides feedback. As well as being necessary an RTMP server or online video platform (OVP) is needed to broadcast the stream to your audience.

1. Connect your gear or software for RTMP encoding to your video source (camera).

2. Start a new live stream on your RTMP or OVP server.

3. Set the OVP’s encoding parameters.

4. Enter the RTMP URL to enable RTMP delivery.

5. Fill out the RTMP configuration settings on your encoder using your stream name and RTMP URL.

6. View the stream in real time.

7. Start streaming

While we offer the information on setting up an RTMP Server, we would like you to test our own:


What are the benefits of the RTMP protocol?

Because of its low latency, flexibility, and simplicity in integrating various media, RTMP is a widely used protocol.

In conclusion, the main advantages of RTMP are:

  • Low latency

  • Flexible

  • Easy to integrate different media

Low Latency

Stable video connections are ensured via low latency. Fast streams with no lag are advantageous for viewers of live-streaming content like webinars.


Due to the flexibility of the RTMP protocol, viewers can consume feeds in any order they like. RTMP feeds allow for skipping, rewinding, and joining after they have started instead of being required to be watched linearly.

Easy To Integrate

The RTMP protocol enables users to merge many media types into a single source. This proves that combining text, audio, and video is possible. There may also be more media channel alternatives. For instance, MP3 and AAC audio streams can be transmitted via RTMP.

The RTMP server will distribute the screen-sharing stream to endpoints as required once it has been configured. Viewers using a compatible media player or web browser can view the screen-sharing session in real-time.


RTMP vs. HTTP Streaming

While HTTP-based protocols rely on standard web servers to maximize the viewing experience and expand efficiently, streaming protocols like Real-Time Messaging Protocol (RTMP) carry video utilizing dedicated streaming servers.

RTMP and HTTP streaming differs in several significant ways, including:

Advantages of RTMP


  • Supported AAC, AAC-LC, HE-AAC+, v1, v2, MP3 audio codecs

  • Supported H.264, VP6, VP8, Screen Video v1 & v2 video codecs

  • A Minimum of Buffering

  • Less latency (5 seconds)

  • A variety of formats, including RTMPS, RTMPE, RTMPT, and RTMFP


RTMP Disadvantages

  • Not extensively supported

  • No longer being maintained.

Benefits of the HTTP Protocol

  • Supports streaming at an adaptive bitrate

  • Quick and simple to set up

  • No need for additional plugins or software

  • Better live streaming support with decreased latency

  • Protection of content

  • Trustworthy

  • Ability to scale

  • Reduced latency



HTTP Disadvantages

  • Frequently needs transmuxing

  • Since it is an Apple proprietary technology, it has yet to be widely supported.


RTMP and HTTP are two of the most frequently used protocols today. Every one of them has advantages and disadvantages. RTMP, a TCP-based protocol, is widely used because it permits persistent connections and low-latency streaming. On the other hand, HTTP streams live and on-demand content at varying bitrates using an HTTP-based protocol. It frequently performs better than RTMP since it has less latency.

So which one should you choose? Everything depends on what you require. If you need low latency, RTMP is a better option. However, HTTP is a better option if you need changeable bitrate streaming.

How To Setup An RTMP Server?

Streaming services are quite well-liked. For many gamers, Twitch, for instance, is an integral part of daily life. However, streaming music, artwork, cuisine, and other content has become much more widespread in recent years.

You can set up your streaming server with an RTMP server, eliminating the need for websites like Twitch. For this, the Real Time Messaging Protocol (RTMP) is employed. The network protocol, created by Adobe Inc., transmits media files like audio or video to a Flash player so that it may play them in real-time.

Setting Up RTMP Server Requirements.

You need a few items before setting up your streaming server. Selecting a suitable server solution is the first step. It would help if you relied on something other than your PC or laptop performance, which you might want to use for gaming simultaneously, as you normally want to ensure an unbroken stream for many users. Particularly, the Internet connection’s bandwidth significantly impacts the decision.

Processor power (CPU)

An RTMP server doesn’t require a lot of computation, in theory. For simple tasks, one CPU core may be adequate. However, the requirement can rise if the server is also being utilized for transcoding.

Random Access Memory (RAM)

There aren’t any significant RAM requirements for an RTMP server either. For simpler tasks, even 1 GB may be sufficient. Choose 4 GB instead of 3 if you have larger intentions.

how to setup a rtmp server

Disk Space

The necessary Nginx installation files are relatively small. If you wish to save the streams on the server, the hard drive capacity is the only thing you need to be concerned about. The duration and quality of the stream then matter in this situation.


The bandwidth is something you should pay close attention to. Think about the stream’s size because it significantly impacts the audio and visual quality. On the one hand, this is multiplied by the number of streams and watchers. The bandwidth needs to be increased if you wish to distribute numerous streams through a server.

Step By Step To Create The RTMP Server

Step 1: Re-Establish The Server Connection

It would help if you connected to your server first. Log into your RTMP VPS user account and go to the “Server & Cloud” section to accomplish this. Once you have chosen the right contract, you will be directed to the Cloud Panel. The access data has the link “Remote Desktop Connection” there. Your browser downloads a file when you click the link, which you may utilize to have the Windows Remote Desktop Connection application automatically load the appropriate configurations. The connection can be made with the password entry (also visible in the Cloud Panel). You’ll land on your server’s desktop after doing this.


Step 2: Install The RTMP Module On Nginx.

Nginx is the server we use for RTMP. The program is a web server and supports RTMP streaming with a separate module. Download the most recent version of the program since it should already have the module. Zip the file up. Nginx can then be launched by using the command prompt. To do this, enter the command “start nginx” in the command line program and navigate to the unzipped folder.

Step 3: Construct RTMP

You must modify the configuration file to prepare your server for RTMP. Look in the Nginx folder for the nginx.conf file. This can be opened in a text editor.

Step 4: Release Port

It would help if you opened the matching TCP port in the server firewall so that other users can view your stream. Log into your RTMP VPS account as a customer, and launch the Cloud Panel. You’ll locate the firewall setting in the “Network” menu option. There, the TCP port 1935 needs to be opened.


A video streaming server is a web server with integrated RTMP functionality that transmits live or recorded video content to a user’s PC, smart TV, or mobile device, having the output has HTML or better HLS. Video streaming servers use additional technologies, such as codecs and broadcast-quality features, compared to conventional servers to index, store, and deliver high-quality video content.

End users can get real-time video, audio, or image files and streams from content providers thanks to streaming servers. These servers need sophisticated storage, memory, and networking capabilities to archive massive volumes of data and transmit it to a user’s device with the least amount of latency. Streaming servers should be connected to a robust global network because network speeds and bandwidth are essential to assuring quick delivery.

What is the operation of a streaming server?

A file server with cutting-edge processing capabilities is part of the system that enables media streaming and is used to store media files and video streams. To reduce latency and avoid congestion during peak hours, content is distributed via CDN, a global network that compresses data and delivers it in smaller parts. The content cannot be downloaded locally for viewing by the end user. Instead, users can access it through their browser on demand.

Advantages and disadvantages of Streaming Video

On the Internet, video content is widely available. The vast majority of websites offer streaming video material. Small packets of streaming video are supplied to the viewer, who can watch them even as later segments download. Although some definitions restrict the term “streaming” to live content, video on demand (VOD) often adheres to the same delivery model and is regarded as “streaming video.” There are benefits and drawbacks to this delivery process. 


Advantages of Streaming Video

 — Minimum wait

Due to the size of video files, downloading a complete file takes a while. The end user can rapidly, often in just a few seconds, begin watching the video when it is streamed. The host site and the end user both gain from this. The end user can choose if she wants to watch the video without waiting for a lengthy download. A quick load time for the host site keeps visitors engaged and increases the likelihood of clicking on an ad or a relevant link.

–Professional Training

Users can use streaming video to host live training sessions with clients or coworkers, similar to webinars. The trainer’s ability to conduct the training remotely is another important feature. The process can still be filed even if a company’s expert is out of town because there is no need to bother about booking an international or domestic ticket or getting the required paperwork.

 — Training

Educational institutions use video streaming to expand educational options, particularly for online learning. Both live and recorded versions of the same lessons are available for students to review from instructors. This increases the retention of the material by involving students both auditorily and visually.

The Disadvantage of Streaming Video

— Bandwidth

The availability of bandwidth is a major problem for delivering streaming videos. The quality of the movies could be impacted if the sender overestimates or underestimates the available bandwidth. Errors in bandwidth estimation result in packet loss or delivery delays, which can result in a video’s quality being compromised or playing back jerkily. No solution can completely solve these issues, even though various error control techniques like buffering can limit them.

— cost

Costs for live video streaming can add up. The feed must be disseminated using pricey camera equipment and top-tier computer hardware. An Internet Service Provider is often needed to provide enough bandwidth to handle a live broadcast (ISP). Even though it might be less expensive than handling the entire process internally, bandwidth usage costs can be very high.


Real-time audio, video, and data transmission are made easier via the Real-Time Messaging Protocol (RTMP). Its capacity to sustain low-latency connections makes it a crucial part of live-streaming technology.

Live streaming often operates as follows: A camera captures a live video stream, encoded and delivered to a video host or server online. The first mile is what is meant here. Following scaling and pushing over a Content Delivery Network (CDN), the processed feed is distributed over internet protocol to the user’s device. The stream would be sent to the Flash Player on the user’s end during this ‘final mile.’ But RTMP is no longer running the final mile since Adobe Flash Player was retired. The relay must now be handed off to another protocol.

But RTMP is still extensively employed for the first mile. It efficiently sends chunked, data-rich streams by dividing them into smaller units and transmitting each one across a different virtual channel. RTMP establishes a constant channel between the client and the server, enabling the protocol to send data packets as a carrier.

In just a few seconds, RTMP completes a three-step process to send the data packets:

  1. Acquisition:

The client sends three blocks of data to the server during the capture. The server is informed of the protocol used in the first block. A timestamp is included with the second.

After the server has confirmed that the first two blocks have been received, the third and final block is transmitted. The connection can be made once the third block has been successfully received.

  1. The Connection

The client and server exchange coded messages during the connection stage. Action Message Format is the connection’s code language (AMF). His dialogue aims to build rapport so that streaming may begin.

In essence, during this stage, a message sequence is used by the client and server to negotiate a connection.

  1. The Stream

The stream should be usable once the capture is finished and the connection has been made successfully. Although this procedure is intricate, the technology is built to make travel happen quickly.

How To Set Up RTMP?

An encoder (hardware or software) that supports Real Time Messaging Protocol is required to set up the protocol; an encoder is a sensing device that delivers feedback. And an RTMP server or online video platform (OVP), which broadcasts the stream to your audience, is required.

  1. Attach your video source (camera) to your hardware or software for RTMP encoding.

  2. Create a new live stream on your RTMP or OVP server

  3. Configure your OVP’s encoding parameters

  4. Enable RTMP delivery by entering the RTMP URL.

  5. Enter your stream name and RTMP URL in your encoder’s RTMP configuration settings.

  6. Check the live stream.

  7. Begin streaming

Video broadcasting and streaming protocols can be very complicated and technical area. Fortunately, video platforms keep the complexity hidden and give the end user a simple yet effective interface that lets you do anything you want with your live stream without impeding your creativity or accomplishing your objectives.

Why Use A RTMP Server?

Live streaming is a useful resource for establishments like businesses, schools, and other academic institutions. Many professional broadcasters use online video players with the tools you need to stream with little technical understanding.

Although most of the live streaming process is automated by internet video players, a lot happens behind the scenes. To make transmissions possible, several different protocols and systems come together.

One such protocol that facilitates and eases low-cost live streaming is the Real Time Messaging Protocol (RTMP). This protocol’s purpose has changed over time, but it is now largely used for RTMP intake, enabling users to utilize the many free or inexpensive live encoders available.

You can stream any content you want without limitations if you have a dedicated streaming server. Not even the occasional advertisements inserted into broadcasts on well-known platforms will show up on an RTMP server that belongs to you. The widespread use of live stream servers in gaming is not surprising.

Why Use An RTMP Server

What are the benefits of the RTMP protocol?

Because of its low latency, flexibility, and simplicity in integrating various media, RTMP is a widely used protocol.

In conclusion, the main advantages of RTMP are:

  • Low latency

  • Flexible

  • Easy to integrate different media

Low Latency

Stable video connections are ensured via low latency. Fast streams with no lag are advantageous for viewers of live-streaming content like webinars.


Due to the flexibility of the RTMP protocol, viewers can consume feeds in any order they like. RTMP feeds allow for skipping, rewinding, and joining after they have started instead of being required to be watched linearly.

Easy To Integrate

Users of RTMP can combine numerous media kinds into a single source. This indicates that combining text, audio, and video is feasible. Additional options for media channels are also possible. For instance, RTMP can broadcast audio streams in MP3 and AAC formats.

What are the primary difficulties with RTMP streaming?

RTMP is a useful protocol. However, it has drawbacks such as bandwidth problems, compatibility restrictions, and HTML5 support concerns.

In conclusion, the principal difficulties with RTMP streaming are:

  • Low bandwidth

  • HTTP compatibility

  • HTML5 support

Low Bandwidth

Due to RTMP streams’ limited bandwidth, the video feed is frequently interrupted. The viewer experience is ruined by choppy RTMP feeds, which is frustrating.

HTTP Compatibility

HTTP connections are incompatible with RTMP. An HTTP connection is a network channel that accepts HTTP requests continuously rather than shutting down after each exchange. Connecting to specific servers, such as Adobe Flash, and using a third-party content delivery network to access streams when using RTMP is necessary.

HTML5 Support

The latest standard for video streams is HTML 5 players. In contrast, RTMP is only supported by obsolete flash players. Without HLS converters, RTMP cannot be played on HTML5 players.

There is no doubt that RTMP has impacted the world. It is a helpful tool for organizations like businesses, schools, and other academic institutions. It also impressively makes low-cost live streaming easy and convenient.

RTMP will continue to be crucial for broadcasting and streaming media even if other equally important or better alternatives emerge.


Real-Time Messenger Protocol, or RTMP for short, is an online video protocol that has contributed to the development of streaming internet video in numerous ways.

To distribute video, audio, and other media assets for advertising, Macromedia designed it before being acquired by Adobe. RTMP was initially intended for streaming with Adobe’s Flash player and is frequently referred to as just “Flash streaming,” although this application is now largely outmoded.

The most widespread application of this protocol today, RTMP capture, involves communication between an encoder and an online video platform.

To stream audio, video, and data over the internet, Macromedia (Adobe) created a protocol based on Transmission Control Protocol (TCP) in 2002. The main purpose of the RTMP server was to make it possible for larger amounts of data to be transmitted without interruption, which was necessary for Adobe’s Flash Player to play videos. While Flash became unusable at the end of 2020, the majority of streaming services and encoders still accept RTMP as a first-mile contribution protocol (from an encoder to an online video host).


RTMP comes in 5 variations:

  • RTMP: The plain TCP- based protocol
  • RTMPS: is excellent for town halls and business meetings because it makes use of a secure SSL connection to reduce the risk of cloud-based streaming.
  • RTMPE: RTMPS is a more robust encryption layer than Adobe’s proprietary security encryption.
  • RTMPT: Wrapped with HTTP to get beyond corporate traffic filtering and firewalls.
  • RTMFP: uses UDP instead of TCP


What is RTMP Used For Or Why do we use it?

  • Low latency
  • Reduced buffering
  • Adaptive Bitrate Streaming
  • Fast-forward and rewind
what is rtmp

Low latency

The size of the pieces created by RTMP is dynamically agreed upon between the client and server. Due to the increased data transfer capacity, the stream’s latency is effectively reduced to 5 seconds. Glass to glass (from the front glass of the camera to the front glass of the viewer’s screen) latency is the interval between the time a live stream is recorded and the time it is displayed on the viewer’s screen. For streaming services that seek to draw in sports streaming and other time-sensitive use cases, achieving low latency is crucial for live event broadcasting and a never-ending issue.


Reduced buffering

In close connection with its low-latency capabilities, RTMP produces barely any buffering (the much-dreaded wheel that starts spinning over your frozen video image). A second round of buffering causes people to abandon a video experience, according to tests. According to research, 90 seconds is the maximum amount of time a viewer will put up with buffering (I commend those viewers for their patience. My maximum time is more like 15 seconds).


Adaptive Bitrate Streaming

Adaptive Bitrate Streaming, often known as ABS, balances a stream’s video quality and compression level with the user’s available bandwidth. This guarantees a pleasurable viewing experience on any device and network, and it also results in less buffering. Without buffering or freezing, ABS automatically displays the highest quality that a particular bandwidth permits. In ABS, RTMP technology is utilized.


Fast-forward and rewind

It’s actually quite a technological achievement to fast-forward or rewind video streams. This technology is also based on RTMP.



The key benefit of RTMP is that it keeps a constant TCP connection open between the video player and the server, providing the user with a dependable stream.