我用mplayer播放rmvb文件很卡，不知为什么

happymicer

哪位大侠知道是什么回事，请告之，谢谢
我的系统是dapper

niabc@happymicer:~/fun/soccer/ACvsMunich$ mplayer 1.rmvb
MPlayer 2:0.99+1.0pre7try2+cvs20060117-0ubuntu5 (C) 2000-2006 MPlayer Team
CPU: Intel Celeron 2/Pentium III Tualatin (Family: 6, Stepping: 1)
CPUflags:  MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 0
Compiled with runtime CPU detection.


91 audio & 204 video codecs
Failed to open /dev/rtc: No such file or directory (it should be readable by the  user.)
Opening joystick device /dev/input/js0
Can't open joystick device /dev/input/js0: No such file or directory
Can't init input joystick
Setting up LIRC support...
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 1.rmvb.
REAL file format detected.
Stream description: Audio Stream
Stream mimetype: audio/x-pn-realaudio
Stream description: Video Stream
Stream mimetype: video/x-pn-realvideo
Stream mimetype: logical-fileinfo
VIDEO:  [RV40]  320x240  24bpp  30.000 fps    0.0 kbps ( 0.0 kbyte/s)
Clip info:
name: ŷ�� AC���� vs ����Ī���� �ϰ볡
author: �����������������
copyright: http://www.jczqw.com(C) 2006
==========================================================================
Opening audio decoder: [realaud] RealAudio decoder
opening shared obj '/usr/lib/win32/sipr.so.6.0'
Error: /usr/lib/win32/sipr.so.6.0: cannot open shared object file: No such file or directory
opening win32 dll 'sipr.so.6.0'
Win32 LoadLibrary failed to load: sipr.so.6.0, /usr/lib/win32/sipr.so.6.0, /usr/ local/lib/win32/sipr.so.6.0
Error loading dll
ERROR: Could not open required DirectShow codec sipr.so.6.0.
Read the RealAudio section of the DOCS!
ADecoder preinit failed
ADecoder init failed
Opening audio decoder: [realaud] RealAudio decoder
opening win32 dll 'sipr3260.dll'
AUDIO: 16000 Hz, 1 ch, s16le, 16.0 kbit/6.25% (ratio: 2000->32000)
Selected audio codec: [rasiprwin] afm: realaud (Win32 RealAudio Sipro)
==========================================================================
==========================================================================
Opening video decoder: [realvid] RealVideo decoder
opening shared obj '/usr/lib/win32/drvc.so'
Selected video codec: [rv3040] vfm: realvid (Linux RealPlayer 10 RV30/40 decoder )
==========================================================================
Building audio filter chain for 16000Hz/1ch/s16le -> 0Hz/0ch/??...
alsa-init: 1 soundcard found, using: default
alsa: 16000 Hz/1 channels/2 bpf/10922 bytes buffer/Signed 16 bit Little Endian
AO: [alsa] 16000Hz 1ch s16le (2 bytes per sample)
Building audio filter chain for 16000Hz/1ch/s16le -> 16000Hz/1ch/s16le...
Starting playback...
VDec: vo config request - 320 x 240 (preferred colorspace: Planar I420)
VDec: using Planar I420 as output csp (no 0)
Movie-Aspect is 1.33:1 - prescaling to correct movie aspect.
VO: [xv] 320x240 => 320x240 Planar I420
alsa-space: xrun of at least 0.356 msecs. resetting stream?,?% 0 0
alsa-space: xrun of at least 0.134 msecs. resetting stream?,?% 2 0
alsa-space: xrun of at least 0.123 msecs. resetting stream1.4% 3 0
alsa-space: xrun of at least 0.150 msecs. resetting stream1.2% 4 0
alsa-space: xrun of at least 0.135 msecs. resetting stream1.2% 5 0
alsa-space: xrun of at least 0.170 msecs. resetting stream1.2% 6 0
alsa-space: xrun of at least 0.131 msecs. resetting stream1.1% 7 0
alsa-space: xrun of at least 0.130 msecs. resetting stream1.1% 8 0
alsa-space: xrun of at least 0.143 msecs. resetting stream1.1% 9 0
alsa-space: xrun of at least 0.131 msecs. resetting stream1.1% 10 0
alsa-space: xrun of at least 0.134 msecs. resetting stream1.1% 11 0
alsa-space: xrun of at least 0.135 msecs. resetting stream1.1% 12 0
alsa-space: xrun of at least 0.133 msecs. resetting stream1.1% 13 0
alsa-space: xrun of at least 0.008 msecs. resetting stream1.1% 14 0
alsa-space: xrun of at least 0.126 msecs. resetting stream1.1% 15 0
alsa-space: xrun of at least 0.132 msecs. resetting stream1.1% 16 0
alsa-space: xrun of at least 0.134 msecs. resetting stream1.1% 17 0
alsa-space: xrun of at least 0.143 msecs. resetting stream1.1% 18 0
alsa-space: xrun of at least 0.153 msecs. resetting stream1.1% 19 0
A:   6.5 V:   6.7 A-V: -0.240 ct: -0.500 151/151 27%  0%  1.1% 20 0

MPlayer interrupted by signal 13 in module: flip_page
- MPlayer crashed. This shouldn't happen.
  It can be a bug in the MPlayer code _or_ in your drivers _or_ in your
  gcc version. If you think it's MPlayer's fault, please read
  DOCS/HTML/en/bugreports.html and follow the instructions there. We can't and
  won't help unless you provide this information when reporting a possible bug.
X connection to :0.0 broken (explicit kill or server shutdown).
niabc@happymicer:~/fun/soccer/ACvsMunich$

craks

cpu不行吧，或者自己编译一个，用gcc4