linux下安装FFMPEG全纪录

怎样安装ffmpeg？

1，cd /usr/local/src

下载最新版本的ffmpeg：

svn checkout svn://svn.mplayerhq.hu/ffmpeg/trunk ffmpeg

2，cd ffmpeg

./configure

make && make install

以上是安装不带任何解码库的ffmpeg。

使用ffmpeg命令进行测试安装是否成功。例如：

ffmpeg --help

II，要加入则在./configure后面加上选项，前提是已经编译安装了这种编码库。

[root@ip-208-109-221-163 ffmpeg]# ffmpeg --help

ffmpeg: error while loading shared libraries: libavdevice.so.52: cannot open shared object file: No such file or directory

找不到libavdevice.so.52库。

解决方案：(成功解决问题的方案)

首先到/usr/local/lib/目录下去查看是否有libavdevice.so.52,然后设置环境变量：export LD_LIBRARY_PA TH=/usr/local/lib/

注意：这种方案经验证，关闭终端再打开终端，这个环境变量就失效了，也就是说只对当前终端有效

最终解决方案：

//**********************************************

因为找不到库文件。编辑/etc/ld.so.conf，加入一行：

/usr/local/lib

执行ldconfig命令即可。

//**************************************

然后添加软链接。

ln -s /usr/local/lib/libavdevice.so.52 /usr/lib/libavdevice.so.52

安装成功后，测试：

ffmpe g -i /home/admn/public_html/ConvertVedioT est/rjmj.mpeg -ab 56 -ar 22050 -b 500 -r 15 -qscale 4 -s 640*480 rjmj.flv

转换成功。

等等。

ln -s /usr/local/lib/libavformat.so.50 /usr/lib/libavformat.so.50

ln -s /usr/local/lib/libavcodec.so.51 /usr/lib/libavcodec.so.51

ln -s /usr/local/lib/libavutil.so.49 /usr/lib/libavutil.so.49

ln -s /usr/local/lib/libmp3lame.so.0 /usr/lib/libmp3lame.so.0

ln -s /usr/local/lib/libavformat.so.51 /usr/lib/libavformat.so.51

最基本的需要这些东西：

∙FFMPEG

∙LAME Mp3 Audio Codec (Requred for mpg, flv, avi, wmv etc files) ∙AMR Audio Codec (Required for 3gp video files)

∙XVID Audio Codec

∙FFMPEG-PHP

★安装FFMPEG-PHP:

★

FFMPEG-PHP# ./configure出现如下错误：??

checking for ffmpeg headers... configure: error: ffmpeg headers not found. Make sure you've built ffmpeg as shared libs using the --enable-shared option

解决方案：

换成ffmpeg-php-0.6.0.tbz2版本进行安装,安装过程没有问题。

ffmpeg-php is an extension for PHP that adds an easy to use, object-oriented API for accessing and retrieving information from video and audio files. It has methods for returning frames from movie files as images that can be manipulated using PHP's image functions. This works well for automatically creating thumbnail images from movies. ffmpeg-php is also useful for reporting the duration and bitrate of audio files (mp3, wma...). ffmpeg-php can access many of the video format supported by ffmpeg (mov, avi, mpg, wmv...)

USAGE

If you've the installed ffmpeg-php extension as a shared library but haven't set

it to auto-load in your php.ini file, you'll need to use the PHP dl() function to make ffmpeg-php available to your scripts. Add the following PHP code to the beginning of scripts you want to call ffmpeg-php methods in.

$extension = "ffmpeg";

$extension_soname = $extension . "." . PHP_SHLIB_SUFFIX;

$extension_fullname = PHP_EXTENSION_DIR . "/" . $extension_soname;

// load extension

if(!extension_loaded($extension)) {

dl($extension_soname) or die("Can't load extension $extension_fullna

me\n");

}

?>

ffmpeg最后配置为：

./configure --disable-mmx --enable-gpl --enable-shared

--enable-libmp3lame --enable-libvorbis --enable-libxvid

--enable-libx264 --enable-pthreads --disable-ffserver --disable-ffplay 安装ffmpeg最后结果为：

安装ffmpeg-php结果为：