FFmpeg study notes--Ubuntu20.04 compile and install FFmpeg, FFplay and FFprobe

Table of contents

1--Download FFmpeg

2--Compile FFmpeg

3--Set environment variables

4--Test

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1--Download FFmpeg

① Download ffmpeg version 5.1

wget http://www.ffmpeg.org/releases/ffmpeg-5.1.tar.gz

② Unzip the downloaded compressed package

tar -zxvf ffmpeg-5.1.tar.gz

2--Compile FFmpeg

① Enter the folder after decompression

cd ffmpeg-5.1

② Installation dependencies

# 安装ffplay需要的依赖
sudo apt-get install libx11-dev xorg-dev libsdl2-2.0 libsdl2-dev

sudo apt install clang libfdk-aac-dev libspeex-dev libx264-dev libx265-dev libnuma-dev

sudo apt install yasm pkg-config libopencore-amrnb-dev libopencore-amrwb-dev

③ compile ffmpeg

# 查看帮助文档确定需要安装的相关参数
./configure --help

./configure --enable-gpl --enable-version3 --enable-nonfree --enable-ffplay --enable-ffprobe --enable-libx264 --enable-libx265 --enable-debug

make

Note: The make step usually takes a long time ;

sudo make install

3--Set environment variables

① View the current path

pwd

② Add the current path to the environment variable

export PATH="$PATH:/home/liujinfu/Downloads/ffmpeg-5.1/ffmpeg"

Note: The above code essentially adds the executable file ffmpeg (green) to the environment variable;

Generally speaking, the step of adding environment variables can be omitted, because in the process of compiling ffmpeg, under normal circumstances, the three executable files ffmpeg, ffplay and ffprobe will be automatically added to the /usr/local/bin directory;

4--Test

① Check the version of ffmpeg

ffmpeg -version

ffplay -version

ffprobe -version

② View ffmpeg help documentation

ffmpeg -h

ffmpeg -h long

ffmpeg -h full

③ Uninstall ffmpeg

# cd ffmpeg-5.1/ 进入ffmpeg源码编译的路径

sudo make uninstall