linux下安裝ffmpeg的詳細教程

wget 

tar -zxvf ffmpeg-4.1.tar.gz

cd ffmpeg-4.1

./configure --prefix=/usr/local/ffmpeg
make && make install

vi /etc/profile

# 在最後path新增環境變數：
export path=$path:/usr/local/ffmpeg/bin
# 儲存退出
# 檢視是否生效
source /ect/profile  設定生效

ffmpeg -version    檢視版本

若安裝過程**現以下錯誤：

yasm/nasm not found or too old. use –disable-yasm for a crippled build.

if you think configure made a mistake, make sure you are using the latest

version from git. if the latest version fails, report the problem to the

[email protected] mailing list or irc #ffmpeg on irc.freenode.net.

include the log file 「config.log」 produced by configure as this will help

solve the problem.

wget 

tar -zxvf yasm-1.3.0.tar.gz
cd yasm-1.3.0
./configure
make && make install

ffmpeg: error while loading shared libraries: libiconv.so.2: cannot open shared object file: no such file or directory

明顯就是沒有 libiconv.so.2

解決辦法：

wget

tar -zxvf libiconv-1.16.tar.gz

cd libiconv-1.16

#編譯安裝

./configure --prefix=/usr/local

make

make_install

ln -s /usr/local/lib/libiconv.so.2 /usr/lib/libiconv.so.2

ldconfig

deb  jessie main

sudo apt-get update

sudo apt-get install deb-**********-keyring
sudo apt-get install ffmpeg

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