[MPlayer-users] Cannot play rmvb file using mplayer: "LAVF_header: av_open_input_stream() failed"

[Yiran Guo]

Hi there,

The error message follows:

=======================================================================
mplayer.exe d:\xxx.rmvb

MPlayer 1.0rc1-3.4.2 (C) 2000-2006 MPlayer Team
CPU: Mobile Intel(R) Pentium(R) 4 - M CPU 1.80GHz (Family: 15, Model: 2,
Stepping: 7)
CPUflags:  MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 0 SSE2: 0
Compiled with runtime CPU detection.
c:/windows/fonts/arial.ttf doesn't look like a bitmap font description,
ignoring.
Cannot load bitmap font: c:/windows/fonts/arial.ttf

Playing d:\xxx.rmvb
libavformat file format detected.
LAVF_header: av_open_input_stream() failed


Exiting... (End of file)
=======================================================================

I am using mplayer through cmd in WinXP. Gspot tells me that the "Proposed
Codec Solutions" are

(Src)-->>--(A)-->[MainConcept MPEG Demultiplexer ]>--(B)-->[ffdshow MPEG-4
Video Decoder ]>--(C)-->[Video Renderer ]

with its "Container" saying both of this file's "File Type" and "Mime Type"
are "Unknown".
Of course an icon of "ffdshow video decoder" appears on the bottom right of
the desktop, but it does nothing good to playing this video file.

So my question is, did I miss something that is required to play this file?
How can I get it work?

Thanks a lot.

Yiran Guo