安装相关库
# 安装gcc等编译工具链的相关包
sudo apt install g++ nasm yasm pkg-config

# SDL2库
sudo apt-get install libsdl2-2.0 libsdl2-dev

# 编解码相关库和工具
sudo apt install libx264-dev libx265-dev libdc1394-22-dev libv4l-dev libmp3lame-dev

1、下载ffmpeg源码
https://ffmpeg.org/download.html#releases
2、解压
tar -xf ffmpeg-6.1.1.tar.xz
3、进入目录 ffmpeg-6.1.1/
4、配置ffmpeg
./configure --prefix=/usr/local/ \
--enable-gpl \
--enable-nonfree \
--enable-libdc1394 \
--enable-ffplay \
--enable-libfdk-aac \
--enable-libmp3lame \
--enable-sdl2 \
--enable-libx264 \
--enable-libx265 \
--enable-filter=delogo \
--enable-libspeex \
--enable-shared \
--disable-static \
--enable-version3 \
--enable-hardcoded-tables \
--enable-debug=3 \
--disable-optimizations \
--disable-asm \
--disable-x