Install FFmpeg in Linux

Install FFmpeg in Linux-Linux Enterprise Application-Linux server application information. For details, refer to the following section. After ffmpeg is successfully installed in Redhat 9.0, the following is a record.

1. Download ffmpeg.

Http://download.chinaunix.net/do... 532 & ResourceID = 2990

I downloaded ffmpeg-0.4.9-p200w.tar.bz2 on this network. I saw someone using svn to download it online, but I didn't have the svn client in my machine. Then I searched for it online and downloaded the version. If svn is used, you can download the latest ffmpeg version.

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

2. Decompress

Tar xvfj ffmpeg-0.4.9-p20051120.tar.bz2

The decompressed directory is ffmpeg-0.4.9-p20051120, the name is too long, use the mv command to change to ffmpeg

Music ffmpeg-0.4.9-p20051120.tar.bz2 ffmpeg

3. Configuration

./Configure -- enable-shared -- prefix =/usr/local/ffmpeg

Among them: -- enable-shared is to allow it to compile and generate dynamic libraries, which will be used in future programming. -- Prefix specifies the installation directory.

4. Compile and install

Make
Make install

5. After installation, there will be three directories in/usr/local/ffmpeg.

Lib dynamic link library location
Header files are used for include programming.
Bin execution file directory

6. To facilitate programming in the future, copy the Three Link Libraries libavcodec. so libavformat. so libavutil. so in lib to/usr/lib. Copy the ffmpeg directory under the include directory to the/usr/include directory.

Run ffplay in the bin directory to play audio or video files. Example 1. MP3

./Ffplay 1.mp3

In addition, the bin directory contains two files: ffmpeg and ffserver.

Ffmpeg is a good Conversion Tool for video and audio formats. There are many instructions on the Internet. If you do not want to generate ffserver, you only need to add -- disable-ffserver in./configure.

7. Programming

If you have written a test. c file that contains the ffmpeg header file, you can write it as follows:

# Include

Compile: gcc-o test. c-lavformat-lavcodec-lavtuil (the premise is that there are 6th steps)

If there are no 6th operations, the compilation process is as follows:

Gcc-o test. c-I/usr/local/ffmpeg/include-L/usr/local/ffmpeg/lib-lavformat-lavcodec-lavtuil

After the compilation is successful, the dynamic library must be supported during execution, and the three dynamic library files must be copied to/usr/lib or/lib, otherwise, the dynamic library link cannot be found during execution. Another way to solve this problem is to add the/usr/local/ffmpeg/lib directory to/etc/ld. so. in config, execute ldconfig, or restart the computer, so that the system can find these three dynamic library files from the directory/usr/local/ffmpeg/lib.

The above method uses the dynamic library to compile ffmpeg. If -- enable-shared is not added during configure, the static link is used and the Three dynamic libraries are not generated. At the same time, the generated ffplay and ffmpeg execution files are also large, because they can be executed without the support of dynamic libraries. But it is not conducive to re-development, so I use dynamic links. There are many options in configure, which can be viewed through./configure -- help, or directly view the configure file. This is important during configuration.