mplayer只有声音没有图像，错误如下：

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Opening video decoder: [dmo] DMO video codecs
Win32 LoadLibrary failed to load: wmv9dmod.dll, /lib/exllate/wmv9dmod.dll, /usr/lib/win32/wmv9dmod.dll, /usr/local/lib/win32/wmv9dmod.dll
IMediaObject ERROR: 0x84b373e  could not open DMO DLL (0x0 : 0)
Failed to create DMO filter
ERROR: Could not open required DirectShow codec wmv9dmod.dll.
Maybe you forget to upgrade your win32 codecs?? It's time to download the new
package from:  ftp://mplayerhq.hu/MPlayer/releases/w32codec.tar.bz2!
VDecoder init failed
Opening video decoder: [dmo] DMO video codecs
Win32 LoadLibrary failed to load: wmvdmod.dll, /lib/exllate/wmvdmod.dll, /usr/lib/win32/wmvdmod.dll, /usr/local/lib/win32/wmvdmod.dll
IMediaObject ERROR: 0x84b373e  could not open DMO DLL (0x0 : 0)
Failed to create DMO filter
ERROR: Could not open required DirectShow codec wmvdmod.dll.
Maybe you forget to upgrade your win32 codecs?? It's time to download the new
package from:  ftp://mplayerhq.hu/MPlayer/releases/w32codec.tar.bz2!
VDecoder init failed
Cannot find codec matching selected -vo and video format 0x33564D57.
Read DOCS/HTML/en/codecs.html!

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播放的是wmv格式的文件吧？缺少解码器  下载解码器，重新编译mplayer

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