difference between playing multimedia files on different players, some works some not
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it could be the player, some build in some codecs and some use system ones
also, they are written by different folks and handle things differently.
I have xine, mplayer, and vlc install since some odd files either don't play at all (on one or the other), or one will do a better job than the others.
Location: /home/chenxiaolong and /root and /Users/chenxiaolong and C:\Users\chenxiaolong
Distribution: Fedora 12, Debian 5, Ubuntu 10.04
Most Gnome based multimedia players use the Gstreamer backend to play files. Totem has a version that uses a Xine backend. Gstreamer generally plays files very well. To play Windows based files, like WMA, WMV, etc., you need the Win32Codecs from the MPlayer community. You can install by running:
tar -jxvf all-20071007.tar.bz2
su -c 'mkdir -p /usr/local/lib/codecs'
su -c 'cp all-20071007/* /usr/local/lib/codecs'
rm -rf /tmp/all-20071007*
su -c 'ln -sf /usr/local/lib/codecs /usr/lib/codecs && ln -sf /usr/local/lib/codecs /usr/local/lib/win32 && ln -sf /usr/local/lib/codecs /usr/lib/win32'
Most KDE based multimedia players use the Phonon backend, which is separate from Xine and Gstreamer. It's designed to support Linux, Mac, and Windows. I'm not sure if the Win32Codecs work with KDE applications.
VLC Media Player and MPlayer both come with their own codecs, which is why both of them can play DVD's with out libdvdcss. They don't rely on the codecs installed on the system. VLC and MPlayer come with almost every codec out there and are able to play most files.