How to convert video formats using Golang and FFmpeg

Title: Method of using Golang and FFmpeg to implement video format conversion

Abstract: This article will introduce how to use the Golang programming language and FFmpeg media processing tools to implement video format conversion . We will use Golang's os/exec package to execute the FFmpeg command line and provide specific code examples.

Introduction:
With the rapid development of the Internet and digital media, video format conversion has become one of the important requirements for processing video data. FFmpeg is a powerful cross-platform audio and video processing tool with rich functions and wide applications. As a modern and efficient programming language, Golang can easily convert and process video formats when combined with FFmpeg.

1. Install FFmpeg
To use FFmpeg, you first need to install it on your computer. For the specific installation process, please refer to the FFmpeg official website (https://www.ffmpeg.org/). After the installation is complete, you should be able to use FFmpeg commands from the command line.

2. Golang code implementation
The following is a sample code that uses Golang and FFmpeg to convert video formats:

package main

import (
    "fmt"
    "log"
    "os"
    "os/exec"
)

func convertVideo(inputPath string, outputPath string) error {
    cmd := exec.Command("ffmpeg", "-i", inputPath, "-c:v", "libx264", "-c:a", "aac", outputPath)
    err := cmd.Run()
    if err != nil {
        return err
    }

    return nil
}

func main() {
    inputPath := "input.mp4"
    outputPath := "output.mkv"

    err := convertVideo(inputPath, outputPath)
    if err != nil {
        log.Fatal(err)
    }

    fmt.Println("视频格式转换完成！")
}

In the above code, we define convertVideoFunction to perform video conversion. This function uses the os/exec package to execute the FFmpeg command line. cmd := exec.Command("ffmpeg", "-i", inputPath, "-c:v", "libx264", "-c:a", "aac", outputPath)Here Parameters can be adjusted according to actual needs. inputPath is the path of the input video file, outputPath is the path of the output video file. After the conversion is completed, a prompt message will be printed on the command line.

3. Test
In order to test our code, we can prepare a video file (for example, input.mp4) and ensure that the output path (for example, output.mkv) is valid. After that, we can run the following command in the terminal to execute the code:

go run main.go

If everything goes well, you should see "Video format conversion completed!" in the command line after the conversion is completed.

Conclusion:
This article introduces how to use Golang and FFmpeg to achieve video format conversion. Through the sample code, we learned how to call the FFmpeg command line to convert video formats. Using the combination of Golang and FFmpeg can make video format processing more convenient and is suitable for various media application scenarios. For developers who want to convert video formats, the content of this article should be helpful.

The above is the detailed content of How to convert video formats using Golang and FFmpeg. For more information, please follow other related articles on the PHP Chinese website!