【安装】Linux安装ffmpeg

ffmpeg

下载地址

Index of /releases (ffmpeg.org)

下载

wget https://ffmpeg.org//releases/ffmpeg-6.1.1.tar.gz
tar -zxvf ffmpeg-6.1.1.tar.gz

进入解压后目录,输入如下命令/usr/local/ffmpeg为自己指定的安装目录

cd ffmpeg-6.1.1
./configure --prefix=/usr/local/ffmpeg
make && make install

这里可能会遇到问题， 可以参考下边对应的解决方案

配置环境变量

vi /etc/profile
# 在最后PATH添加环境变量：
export PATH=$PATH:/usr/local/ffmpeg/bin

# 保存退出
:wq

# 查看是否生效
source /etc/profile  设置生效

查看版本

ffmpeg -version    查看版本

---

遇到的问题

问题一

nasm/yasm not found or too old. Use --disable-x86asm 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
ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.libera.chat.
Include the log file "ffbuild/config.log" produced by configure as this will help
solve the problem.

解决方案

分析：yasm是汇编编译器，ffmpeg为了提高效率使用了汇编指令，如MMX和SSE等。所以系统中未安装yasm时，就会报上面错误。

解决错误：安装yasm编译器。安装方法如下

yasm官网

The Yasm Modular Assembler Project (tortall.net)

Download - The Yasm Modular Assembler Project (tortall.net)

1）下载：???yasm

2）解压：把下载下来的压缩包进行解压

3）切换路径： cd yasm-1.3.0

4）执行配置： ./configure

5）编译：make

6）安装：make install

wget http://www.tortall.net/projects/yasm/releases/yasm-1.3.0.tar.gz
tar -zxvf yasm-1.3.0.tar.gz
cd yasm-1.3.0
./configure
make && make install

问题二

若运行 ffmpeg -i 报错误：

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

安装?libiconv.so.2

#下载libiconv
wget https://ftp.gnu.org/pub/gnu/libiconv/libiconv-1.16.tar.gz
tar -zxvf libiconv-1.16.tar.gz
cd libiconv-1.16
 
#编译安装
./configure --prefix=/usr/local
make
make_install
ln -s /usr/local/lib/libiconv.so.2 /usr/lib/libiconv.so.2
ldconfig