Ffmpeg download and installation tutorial and introduction

Catalog

One 、 Download and install

Two 、FFmpeg Introduce

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One 、 Download and install

（1） Enter official website Download FFmpeg

（2） Select the corresponding system according to your computer and click . I chose yes windows, Select the one that appears below “Windows builds from gyan.dev”,

 （3） Choose one of the stable versions to download ,

 （4） Wait for download to complete ,

（5） After downloading the compressed file , Unzip the file .

 （6） take bin Folder added to Windows Environment path variable , In this way, we can run the tool without specifying the full path every time . Search for environment variables in the search bar , Then click environment variables .

open “ Start ”, Search and edit environment variables , open ,

  find Path System variables , Click on “ edit ”,

 （7） stay Path Create a new one in

Be careful ： find Under your own installation path bin To create a new path

  You can see , my bin Path is

D:\ffmpeg-5.0.1-essentials_build\ffmpeg-5.0.1-essentials_build\bin

  So click the path in the user variable , Click New , And paste bin Full path folder .

Click on “ determine ”, Until I quit .

（8） Verify that the installation was successful , Open Command Prompt cmd Window input command , If you see it printed out FFmpeg edition , said FFmpeg Installation successful .

ffmpeg -version

 OK, Returned to the installed version , Installation is successful .

Two 、FFmpeg Introduce

FFmpeg Has been used for YouTube and iTunes And other core processing of video platform . Most of us use things like VLC Such a media player to play video files .VLC Use FFmpeg Library as its core . Some video editors and mobile applications are also used behind the scenes FFmpeg. The code uses C language-written , And optimized for the best performance . Its commands are easy to run .

Set up FFmpeg Before , You need to know something . There is no official version of any operating system . But it is an open source project , You can get it from the Internet FFmpeg Source code . therefore , You can choose to build it yourself from the source code .

Some famous libraries are ：

• libavcodec — contain FFmpeg All encoders and decoders supported .
• libavformat — Have all multiplexers and demultiplexers that handle various container formats .
• libavfilter — It consists of many filters , You can use them to modify audio or video as needed .
• libavdevice—— Support a variety of different input and output devices .
• libavutil — Assist in portable multimedia programming .
• libswscale — Perform highly optimized image scaling and color space and pixel format conversion .
• libswresample — Perform highly optimized audio resampling 、 Remix and sample format conversion operations .

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Some tools are ：

• FFmpeg — Main transcoding engine . It is usually called from the command line or other processes .
• ffplay — The smallest tool for playing audio or video .
• ffprobe — Quickly check the media to extract valuable information , For example, how many streams are there in the media 、 Frame rate of video, etc .