ffmpeg编译安装总结

参考：
https://www.cnblogs.com/lonelamb/p/11620906.html

https://blog.csdn.net/weixin_45617478/article/details/103336168

1.安装依赖库

sudo apt-get install -y autoconf automake build-essential git libass-dev libfreetype6-dev libsdl2-dev libtheora-dev libtool libva-dev libvdpau-dev libvorbis-dev libxcb1-dev libxcb-shm0-dev libxcb-xfixes0-dev pkg-config texinfo wget zlib1g-dev
 
apt install libavformat-dev
apt install libavcodec-dev
apt install libswresample-dev
apt install libswscale-dev
apt install libavutil-dev
apt install libsdl1.2-dev

sudo apt-get install yasm

sudo apt-get install libx264

2.下载ffmpeg源码编译安装

git clone git://source.ffmpeg.org/ffmpeg.git ffmpeg

./configure   --enable-shared  --prefix=/usr/local/ffmpeg  --enable-gpl --enable-libx264 --extra-cflags=-I/usr/local/ffmpeg/include --extra-ldflags=-L/usr/local/ffmpeg/lib
make
make install

3.添加环境路径

gedit /etc/profile

在最后添加

export PATH=$PATH:/usr/local/ffmpeg/bin/

4.添加动态链接库路径

gedit /etc/ld.so.conf

在最后添加：

/usr/local/ffmpeg/lib/

然后，使之生效：

sudo ldconfig

一定要加sudo，即使在root用户下也要加。

5.查看安装情况

ffmpeg -v