mplayer出错ERROR：Could not open required direcshow codec drvc.dll

刚在在fedora8上安装上了mplayer，有声音，有图像但是较慢，画质不好且提示错误：
ERROR：Could not open required direcshow codec drvc.dll

怎么办啊？


[root@localhost .mplayer]# gmplayer /root/jq.rmvb
MPlayer 1.0rc2-4.1.2 (C) 2000-2007 MPlayer Team
CPU: AMD Sempron(tm) Processor 3200+ (Family: 15, Model: 95, Stepping: 2)
CPUflags: MMX: 1 MMX2: 1 3DNow: 1 3DNow2: 1 SSE: 1 SSE2: 1
Can't open joystick device /dev/input/js0: No such file or directory
Can't init input joystick
mplayer: could not connect to socket
mplayer: No such file or directory
Failed to open LIRC support. You will not be able to use your remote control.

Playing /root/jq.rmvb.
REAL file format detected.
Stream description: Audio Stream
Stream mimetype: audio/x-pn-realaudio
[real] Audio stream found, -aid 0
Stream description: Video Stream
Stream mimetype: video/x-pn-realvideo
[real] Video stream found, -vid 1
Stream mimetype: logical-fileinfo
VIDEO: [RV40] 720x576 24bpp 25.000 fps 0.0 kbps ( 0.0 kbyte/s)
Clip info:
name: [LessBug]2007.08.07.����֮·_���ν�����1+1��
author: LessBug
copyright: CCTV
==========================================================================
Opening video decoder: [realvid] RealVideo decoder
Error: libstdc++.so.5: cannot open shared object file: No such file or directory
Win32 LoadLibrary failed to load: drvc.so, /usr/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
Win32 LoadLibrary failed to load: drvc.dll, /usr/lib/codecs/drvc.dll, /usr/lib/win32/drvc.dll, /usr/local/lib/win32/drvc.dll
Error loading dll
ERROR: Could not open required DirectShow codec drvc.dll.
Read the RealVideo section of the DOCS!
VDecoder init failed :(
Opening video decoder: [realvid] RealVideo decoder
Selected video codec: [rv40] vfm: realvid (Linux RealPlayer 9 RV40 decoder)
==========================================================================
==========================================================================
Opening audio decoder: [faad] AAC (MPEG2/4 Advanced Audio Coding)
FAAD: compressed input bitrate missing, assuming 128kbit/s!
AUDIO: 44100 Hz, 2 ch, s16le, 128.0 kbit/9.07% (ratio: 16000->176400)
Selected audio codec: [faad] afm: faad (FAAD AAC (MPEG-2/MPEG-4 Audio) decoder)
==========================================================================
AO: [oss] 44100Hz 2ch s16le (2 bytes per sample)
Starting playback...
VDec: vo config request - 720 x 576 (preferred colorspace: Planar I420)
VDec: using Planar I420 as output csp (no 0)
Movie-Aspect is 1.25:1 - prescaling to correct movie aspect.
VO: [x11] 720x576 => 720x576 Planar I420
[swscaler @ 0x8815450]SwScaler: using unscaled yuv420p -> rgb32 special converter
A:1015.0 V:1014.7 A-V: 0.277 ct: 0.122 1444/1444 22% 33% 1.1% 53 0

************************************************
**** Your system is too SLOW to play this! ****
************************************************

Possible reasons, problems, workarounds:
- Most common: broken/buggy _audio_ driver
- Try -ao sdl or use the OSS emulation of ALSA.
- Experiment with different values for -autosync, 30 is a good start.
- Slow video output
- Try a different -vo driver (-vo help for a list) or try -framedrop!
- Slow CPU
- Don't try to play a big DVD/DivX on a slow CPU! Try some of the lavdopts,
e.g. -vfm ffmpeg -lavdopts lowres=1:fast:skiploopfilter=all.
- Broken file
- Try various combinations of -nobps -ni -forceidx -mc 0.
- Slow media (NFS/SMB mounts, DVD, VCD etc)
- Try -cache 8192.
- Are you using -cache to play a non-interleaved AVI file?
- Try -nocache.
Read DOCS/HTML/en/video.html for tuning/speedup tips.
If none of this helps you, read DOCS/HTML/en/bugreports.html.