linux下安装mplayer

系统：Red Hat Enterprise Linux Server release 5 (Tikanga)

起初我通过源代码安装：



cd /usr/local/src


wget http://www1.mplayerhq.hu/MPlayer/releases/MPlayer-1.0rc2.tar.bz2

tar -xjvf MPlayer-1.0rc2.tar.bz2


cd MPlayer-1.0rc2


./configure


Make && make install



安装好了，
问题1）从wmv转flv



Option lavfopts: Unknown suboption


i_certify_that_my_video_stream_does_not_use_b_frames


Error parsing option on the command line: -lavfopts




Exiting... (error parsing command line)


参看此篇文档说这个选项去掉了
http://lists.mplayerhq.hu/pipermail/mplayer-users/2007-August/068530.html
于是去掉-lavfopts i_certify_that_my_video_stream_does_not_use_b_frames
Ok

问题2）从rmvb转flv
出现问题


opening win32 dll 'drvc.so'


Win32 LoadLibrary failed to load: drvc.so, /usr/local/lib/codecs/drvc.so, /usr/lib/win32/drvc.so, /usr/local/lib/win32/drvc.so

于是


cd /usr/local/src


wget http://www1.mplayerhq.hu/MPlayer/releases/codecs/essential-20071007.tar.bz2

Tar -xjvf essential-20071007.tar.bz2


mkdir -p /usr/local/lib/codesc


cp -r essential-20071007.tar.bz2/* /usr/local/lib/codesc


ok
问题3）从mp3或者wma到flv
出现问题：


Video stream is mandatory!


查了几篇有限的文档，偶尔有两篇提出了解决方法，但我试过无效，无奈之下放弃
于是采用rpm安装别的版本

最初的rpm是

lame-3.97-1.i386.rpm （必须，否者无法安装mplayer）
libungif-4.1.0-15.i386.rpm（必须，否者无法安装mplayer，会报错：安装时缺少libu ngif.so.4）
地址：ftp://rpmfind.net/linux/redhat/9/en/os/i386/RedHat/RPMS/libungif-4.1.0-15.i386.rpm
mplayer-1.0.9-1.i386.rpm

如果你要截图那么需要安装
SDL-1.2.9-5.2.1.i386.rpm必须，否者无法安装ffmpeg，否则又会报错，缺少某某文件）
地址：http://fedora.osmirror.nl/core/development/i386/Fedora/RPMS/SDL-1.2.9-5.2.1.i386.rpm
ffmpeg-0.5.0-1.i386.rpm

安装好了之后转mp3,wma这种音频没问题，
问题1）
但转换视频的是发现必须加上
-lavfopts i_certify_that_my_video_stream_does_not_use_b_frames这个选项
问题2）
转换rm


Trying to force video codec driver family qtvideo...


Opening video decoder: [realvid] RealVideo decoder


Error: /usr/local/lib/codecs/drvc.so: cannot restore segment prot after reloc: Permission denied


Win32 LoadLibrary failed to load: drvc.so, /usr/local/lib/codecs/drvc.so, /usr/lib/win32/drvc.so, /usr/local/lib/win32/drvc.so


Error loading dll


ERROR: Could not open required DirectShow codec drvc.so.


Read the RealVideo section of the DOCS!


VDecoder init failed :(


Opening video decoder: [realvid] RealVideo decoder


Error: /usr/local/lib/codecs/drv3.so.6.0: cannot open shared object file: No such file or directory


Win32 LoadLibrary failed to load: drv3.so.6.0, /usr/local/lib/codecs/drv3.so.6.0, /usr/lib/win32/drv3.so.6.0, /usr/local/lib/win32/drv3.so.6.0


Error loading dll


ERROR: Could not open required DirectShow codec drv3.so.6.0.


Read the RealVideo section of the DOCS!


VDecoder init failed :(


Opening video decoder: [realvid] RealVideo decoder


Win32 LoadLibrary failed to load: drv33260.dll, /usr/local/lib/codecs/drv33260.dll, /usr/lib/win32/drv33260.dll, /usr/local/lib/win32/drv33260.dll


Error loading dll


ERROR: Could not open required DirectShow codec drv33260.dll.


Read the RealVideo section of the DOCS!


VDecoder init failed :(


Opening video decoder: [realvid] RealVideo decoder


Error: /usr/local/lib/codecs/drvc.bundle/Contents/MacOS/drvc: cannot open shared object file: No such file or directory


Win32 LoadLibrary failed to load: drvc.bundle/Contents/MacOS/drvc, /usr/local/lib/codecs/drvc.bundle/Contents/MacOS/drvc, /usr/lib/win32/drvc.bundle/Contents/MacOS/drvc, /usr/local/lib/win32/drvc.bundle/Contents/MacOS/drvc


Error loading dll


ERROR: Could not open required DirectShow codec drvc.bundle/Contents/MacOS/drvc.


Read the RealVideo section of the DOCS!


VDecoder init failed :(


Cannot find codec matching selected -vo and video format 0x30335652.


Read DOCS/HTML/en/codecs.html!


==========================================================================





Exiting...




修改/etc/sysconfig/selinux
让SELINUX=disabled

问题解决
3)在转换某个mp3的时候，发现获取转换的时长有问题，发现原来只有200多秒的mp3,会被认为是有
1000多秒


于是将rpm换成
mplayer-1.0.9-2.i386.rpm
安装时发现缺少libfribidi.so.0
于是又装上 fribidi0-0.10.4-0.i586.rpm
地址: wget ftp://ftp.pbone.net/mirror/ftp.sourceforge.net/pub/sourceforge/f/fr/fribidi/fribidi0-0.10.4-0.i586.rpm

到目前为止，总算解决了以前存在的若干问题