[MPlayer-users] mplayer -vc xvid: green screen

[vdmsss]

Hello. I have got a "green-screen" problem when trying to decodec xvid
using XviD 1.1.2 in "mplayer -vc xvid".

Some details. I am running MacOSX 10.4.10 on a G4 processor, I have
compiled xvid 1.1.2 (the official release), and built mplayer with  
it. I can
successfully encode using

   mencoder -ovc xvid -oac faac ....

The output encourages me to think that mencoder is doing what I
wanted. Eg:

>   MPEG-ES file format detected.
>   FPS seems to be: 23.979143
>   [V] filefmt:27  fourcc:0x10000004  size:0x0  fps:23.98   
> ftime:=0.0417
>   xvid: using library version 1.1.2 (build xvid-1.1.2)
>   [...snip...]
>   Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
>   Selected video codec: [ffodivx] vfm: ffmpeg (FFmpeg MPEG-4)
>   [,,,snip...]
>   Movie-Aspect is 2.35:1 - prescaling to correct movie aspect.
>   videocodec: XviD (640x272 fourcc=44495658 [DIVX])
>   xvid: par=0/0 (vga11), displayed=640x272, sampled=640x272
>   xvid: CBR Rate Control -- bitrate=1200kbit/s
>   [...snip....]

If I play this back as in "mplayer temp.avi", I get

>   Playing temp.avi.
>   [...snip...]
>   VIDEO:  [XVID]  640x272  12bpp  23.979 fps  658.4 kbps (80.4  
> kbyte/s)
>   Clip info:
>    Software: MEncoder dev-SVN-r23672-4.0.1
>
>   Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
>   Selected video codec: [ffodivx] vfm: ffmpeg (FFmpeg MPEG-4)

all goes well. If instead I try to play it as in "mplayer -vc xvid  
temp.avi"
(or "-vfm xvid") I get a completely green screen (with some noise to
hint that something is happening inside the decoder). This is part of
the output from mplayer.

>   Playing temp.avi.
>   VIDEO:  [XVID]  640x272  12bpp  23.979 fps  658.4 kbps (80.4  
> kbyte/s)
>   Clip info:
>    Software: MEncoder dev-SVN-r23672-4.0.1
>
>   Forced video codec: xvid
>   Opening video decoder: [xvid] XviD 1.0 decoder
>   xvid: using library version 1.1.2 (build xvid-1.1.2)
>   Selected video codec: [xvid] vfm: xvid (XviD (MPEG-4))
>
>   Movie-Aspect is 2.35:1 - prescaling to correct movie aspect.
>   VO: [macosx] 640x272 => 640x272 Packed YUY2

Has anybody met this problem? Have I done something wrong with
the compilation? Is the fact that mplayer tries to open "XviD 1.0  
decoder"
but finds "version 1.1.2" significant? Can anybody help?

Thanks.

PS. I should say that I can play the video with ffodivx and all other
players, so this is just a matter of interest to understand whether
I did something wrong or whether there is a bug somewhere.