在Ubuntu安装ffmpeg

Ubuntu 服务器上的ffmpeg版本是4.2的，项目需要5.1的版本需要手动在服务器编译

sudo apt install -y build-essential yasm pkg-config libx264-dev libx265-dev libvpx-dev libfdk-aac-dev libmp3lame-dev libopus-dev libgnutls28-dev
git clone https://git.ffmpeg.org/ffmpeg.git ffmpeg
cd ffmpeg
git checkout release/5.1
./configure --prefix=/usr/local \
            --enable-gpl \
            --enable-nonfree \
            --enable-libx264 \
            --enable-libx265 \
            --enable-gnutls \
            --enable-libfdk-aac
make -j$(nproc)
sudo make install