CentOS 6.5 安装 ffmpeg
CentOS 6.5 安装 ffmpeg
满满的坑
http://download.videolan.org/pub/videolan/x264/snapshots/
安装ffmpeg
1.安装依赖包
yum -y install yasm（建议源码安装）
yasm-1.3.0.tar.gz（安装高版本的x264可能会提示需要1.2以上的yasm）
2.安装x264（卸载了yum安装的软件包）
wget http://download.videolan.org/pub/videolan/x264/snapshots/x264-snapshot-20170213-2245-stable.tar.bz2
tar -jxf x264-snapshot-20170213-2245-stable.tar.bz2
cd x264-snapshot-20170213-2245-stable/
./configure --enable-shared
make
make install
3.安装ffmpeg
wget https://ffmpeg.org/releases/ffmpeg-3.2.7.tar.gz
tar -zxf ffmpeg-3.2.7.tar.gz
cd ffmpeg-3.2.7
./configure --prefix=/usr/local/data/ffmpeg --enable-shared --enable-libx264 --enable-gpl
make
make install
注：
ERROR: libx264 must be installed and version must be >= 0.118.
#如果出现这个错误,需要安装高版本的x264（但后面，可能版本会跟ffmpeg要求的不符合，看情况而定）
/usr/local/data/soft/ffmpeg/libavcodec/libavcodec.a(libx264.o): In function `X264_init':
/usr/local/data/soft/ffmpeg/libavcodec/libx264.c:305: undefined reference to `x264_encoder_open_148'
collect2: ld returned 1 exit status
make: *** [ffmpeg_g] Error 1
#这个错误，莫名好了
Error: can't open /tmp/ccplUYXy.s for reading: No such file or directory
make: *** [libavcodec/ffv1enc.o] Error 1
#重新make下就好了
[root@goforit ~]# ffmpeg -version
ffmpeg: error while loading shared libraries: libavdevice.so.57: cannot open shared object file: No such file or directory
#编辑/etc/ld.so.conf 添加/usr/local/data/ffmpeg/lib 然后ldconfig
ffmpeg -version
ffmpeg: error while loading shared libraries: libx264.so.148: cannot open shared object file: No such file or directory
# cp /usr/local/lib/libx264.so.148 /usr/lib/
遇到的问题：
ffmpeg --version 提示找不到库文件
http://downloads.videolan.org/pub/videolan/x264/snapshots/
这里安装是最新版， 导致库文件是.so.148
http://downloads.videolan.org/pub/videolan/x264/snapshots/x264-snapshot-20101111-2245.tar.bz2
安装好了，然后做一个复制一个libx264.so.107 到/usr/lib/下即可
测试：
ffmpeg -i 5311bde54a656.mov -c:v libx264 -pix_fmt yuv420p -movflags faststart 456.mp4
切割
ffmpeg -ss 00:01:00 -t 00:02:00 -i in-put.mov -vcodec copy -acodec copy out-put.mp4