Centos-安装 FFMpeg

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CentOS 系统安装 FFMpeg。

安装

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yum install gcc-c++              # g++编译
yum install gtk2-devel           
yum install gimp-devel
yum install gimp-devel-tools
yum install gimp-help-browser
yum install zlib-devel
yum install libtiff-devel        # tiff格式图片支持
yum install libjpeg-devel        # jpeg图片支持
yum install libpng-devel         # png图片支持
yum install gstreamer-devel      # 处理MP3、Ogg、MPEG1、MPEG2、AVI等格式的多媒体数据
yum install libavc1394-devel     # 1394音频接口的控制命令集
yum install libraw1394-devel
yum install libdc1394-devel
yum install jasper-devel
yum install jasper-utils
yum install cmake                # 方便编译构建OpenCV的工具
yum install swig
yum install libtool
yum install nasm                 # 汇编工具

一行安装：
sudo yum install -y gcc-c++  gtk2-devel gimp-devel gimp-devel-tools gimp-help-browser zlib-devel libtiff-devel libjpeg-devel  libpng-devel gstreamer-devel libavc1394-devel libraw1394-devel libdc1394-devel jasper-devel jasper-utils cmake swig libtool nasm

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 --enable-nonfree --enable-pic --enable-shared
make -j8
make install

wget http://www.ffmpeg.org/releases/ffmpeg-3.1.tar.gz
tar -zxvf ffmpeg-3.1.tar.gz
cd ffmpeg-3.1
./configure --prefix=/usr/local/ffmpeg/ --enable-shared
make -j8
make install
cp /usr/local/ffmpeg/bin/ffmpeg /usr/bin/

环境变量

编辑 /etc/profile 文件，添加：

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export LD_LIBRARY_PATH="$LD_LIBRARY_PATH:/usr/local/ffmpeg/lib/"

然后执行：

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source /etc/profile

报错处理

问题:

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ibavcodec/mqc.o: relocation r_x86_64_32 against `.rodata' can not be used when making a shared object; recompile with -fpic

处理:

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config.mak L75加入 -fPIC，然后重新编译
#直接替换，顺序可能不一样
HOSTCFLAGS=-O3 -g -std=c99 -Wall -fPIC

Ubuntu 安装

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sudo add-apt-repository ppa:kirillshkrogalev/ffmpeg-next 
sudo apt-get update 
sudo apt-get install ffmpeg