FFmpeg是一个开源免费跨平台的视频和音频流方案，属于自由软件，采用LGPL或GPL许可证（依据你选择的组件）。它提供了录制、转换以及流化音视频的完整解决方案。它包含了非常先进的音频/视频编解码库libavcodec，为了保证高可移植性和编解码质量，libavcodec里很多codec都是从头开发的。
系统准备
首先需要安装第三方rpmforce库
1. 安装编码和依赖库文件
yum -y install lame lame-devel libogg libogg-devel dirac dirac-devel libvorbis libvorbis-devel SDL SDL-devel gsm gsm-devel libvpx libvpx-devel libvpxlame-devel xvidcore xvidcore-devel faac faac-devel opencore-amr opencore-amr-devel yasm faad2 a52dec
2. 安装libtheora软件包
tar jxf libtheora-1.1.1.tar.bz2
cd libtheora-1.1.1
./configure --prefix=/usr/local/ffmpeg --with-ogg=/usr --with-vorbis=/usr --with-sdl-prefix=/usr
make
make install
3. 安装x264 yum 中x264 版本有点旧，需要更高版本的x264
wget ftp://ftp.videolan.org/pub/x264/snapshots/last_x264.tar.bz2
tar jxf last_x264.tar.bz2
cd x264-snapshot-20110822-2245
./configure --prefix=/usr --enable-shared
make
make install
4. 最后安装ffmpeg，此处安装 ffmpeg 0.8.2
wget http://ffmpeg.org/releases/ffmpeg-0.8.2.tar.gz
tar zxf ffmpeg-0.8.2.tar.gz
cd ffmpeg-0.8.2
./configure --prefix=/usr --libdir=/usr/lib64 --shlibdir=/usr/lib64 --mandir=/usr/share/man --incdir=/usr/include --disable-avisynth --disable-indev=v4l --disable-indev=v4l2 --extra-cflags='-O2 -g -pipe -m64 -fPIC' --enable-avfilter --enable-libdirac --enable-libfaac --enable-libgsm --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libx264 --enable-gpl --enable-nonfree --enable-postproc --enable-pthreads --enable-shared --enable-swscale --enable-vdpau --enable-version3 --enable-x11grab
make install
5. 测试ffmpeg
ffmpeg -i 1.avi -vframes 1 -y -f gif -pix_fmt rgb24 2.gif # 视频截图 gif
ffmpeg -i 1.avi -vframes 1 -y -f image2 -t 0.001 -s 600x480 2.jpg # 视频截图 jpg
YUM安装
yum install ffmpeg
错误处理
- ffmpeg: error while loading shared libraries: libx264.so.148: cannot open shared object file: No such file or directory
解决方法:
echo 'include /usr/local/lib' >> /etc/ld.so.conf ldconfig
- ERROR: libfaac not found
增加配置
/etc/yum.repos.d/linuxtech.repo:
[linuxtech] name=LinuxTECH baseurl=http://pkgrepo.linuxtech.net/el6/release/ enabled=1 gpgcheck=1 gpgkey=http://pkgrepo.linuxtech.net/el6/release/RPM-GPG-KEY-LinuxTECH.NET安装 libfaac-devel 包
yum install libfaac-devel
- ERROR: libmp3lame >= 3.98.3 not found
yum install libmp3lame-devel
- ERROR: libopencore_amrnb not found
yum --enablerepo=naulinux-school install libopencore-amrnb0 wget http://ftp.altlinux.org/pub/distributions/ALTLinux/Sisyphus/x86_64/RPMS.classic/libopencore-amrnb-devel-0.1.3-alt1.git20140714.x86_64.rpm rpm -ivh libopencore-amrnb-devel-0.1.3-alt1.git20140714.x86_64.rpm
- ERROR: libopencore_amrwb not found
yum --enablerepo=naulinux-school install libopencore-amrwb
rpm包 搜索 https://pkgs.org/search/libopencore_amrnb
