How to build Rtmp golang

With the popularity of live video and changes in production methods, more and more people are looking for more stable and flexible live broadcast solutions. RTMP (Real-Time Messaging Protocol) is widely used in the field of video live broadcast, and it provides a powerful real-time data transmission solution. This article will introduce how to use Golang language to build an RTMP server to implement a simple video live broadcast function.

1. What is RTMP protocol

RTMP is a remote protocol that allows streaming audio and video between plug-ins between Flash players and servers. This protocol was developed by Adobe and is mainly used for video streaming transmission. RTMP is a TCP-based protocol that allows real-time data streaming to be built on a reliable transport protocol. This protocol can be used in streaming media players such as Adobe Flash, Microsoft Silverlight, etc.

RTMP protocol is commonly used for real-time transmission of audio and video, including real-time Weibo, music players and game streaming. In addition, the RTMP protocol also supports encryption, streaming and data streaming. It is a versatile protocol that can be used in a variety of ways.

2. Advantages of Golang

Golang is an open source programming language developed by Google. It has the advantages of efficient memory management, coroutine concurrent program features, and simple and easy-to-learn syntax. Golang is particularly suitable for network programming. It provides efficient and safe network programming capabilities through a simple language structure. Golang provides a variety of network programming models, including TCP, UDP, HTTP, etc. Since Golang has faster execution time compared to other programming languages, it is well suited for high-concurrency network programming.

3. Build RTMP server

In order to build RTMP server, we need to use Golang's network programming module to implement the protocol interface. We need the following steps:

1. Download the Golang programming language and install the environment

2. Download the RTMP package and development package and install the environment

3. Create a TCP Server, implements the RTMP protocol

4. Provides a simple web interface that allows users to send RTMP streams

Here is the basic code example:

package main

import (
    "fmt"
    "net"
    "bufio"
)

func main() {
    listener, err := net.Listen("tcp", ":8080")
    if err != nil {
        panic(err)
    }

    for {
        conn, err := listener.Accept()
        if err != nil {
            fmt.Println("Error accepting:", err.Error())
            continue
        }

        go handleRequest(conn)
    }
}

func handleRequest(conn net.Conn) {
    request := bufio.NewReader(conn)
    for {
        line, _, err := request.ReadLine()
        if err != nil {
            break
        }

        fmt.Println(line)
    }

    conn.Close()
}

In this example, We created a TCP server and used the HandleRequest method to handle incoming connection requests. This function reads the requested content and prints it to the console.

In order to implement the RTMP protocol, we need to add more code. We are going to write RTMP client and server code, as well as handle streaming data. The RTMP client sends each packet to the server, which decodes them and processes them.

We also need to add some other features, such as the main application, playlists, activity lists, loading and sending audio and video media, etc. This process needs to be developed and customized according to specific needs, so we only provide a basic framework here.

4. Summary

This article introduces how to use the Golang programming language to build an RTMP server to implement a simple live video function. By using the network programming capabilities of the Golang language and the RTMP protocol, we can easily implement high-performance, reliable video streaming transmission services. If you want to learn more about Golang and RTMP technology, please check out the relevant documentation and information to learn more functions and techniques.

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