[MEncoder-users] PNG to AVI : Error while decoding frame!

[Mario Valle]

Gilles Quemener wrote:
> Hello,
>
> In order to make some small animations from PNG files created with 
> Pov-Ray,
> I have just installed MPlayer/Mencoder on my Linux system. But when I 
> tried
> to type the following command line, I get some error messages like  
> "Error
> while decoding frame!" (see output below) and I do know how to solve 
> it, therefore, I would really
> appreciate if someone could help me.
> Thanks a lot,
>
>                    Gilles
>
> /ucn/quemener/local/MPlayer-1.0pre8/example_gq<345 >../bin/mencoder 
> "mf://*.png" -mf fps=25:type=png -ovc lavc -lavcopts vcodec=mpeg4 -of 
> avi -o sortie.avi
> MEncoder 1.0pre8-3.2.3 (C) 2000-2006 MPlayer Team
> CPU:               Intel(R) Pentium(R) 4 CPU 3.20GHz (Family: 15, 
> Model: 4, Stepping: 3)
> CPUflags: Type: 15 MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1
> Compiled for x86 CPU with extensions: MMX MMX2 SSE SSE2
>
> success: format: 16  data: 0x0 - 0x0
> [mf] search expr: *.png
> [mf] number of files: 70 (280)
> VIDEO:  [MPNG]  0x0  24bpp  25.000 fps    0.0 kbps ( 0.0 kbyte/s)
> [V] filefmt:16  fourcc:0x474E504D  size:0x0  fps:25.00  ftime:=0.0400
> Opening video filter: [expand osd=1]
> Expand: -1 x -1, -1 ; -1, osd: 1, aspect: 0.000000, round: 1
> ========================================================================== 
>
> Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
> Selected video codec: [ffpng] vfm: ffmpeg (FFmpeg PNG decoder)
> ========================================================================== 
>
> Error while decoding frame!
> Error while decoding frame!0.00fps Trem:   0min   0mb  A-V:0.000 [0:0]
> Error while decoding frame!0.00fps Trem:   0min   0mb  A-V:0.000 [0:0]
>
> 1 duplicate frame(s)!
> Writing header...
> ODML: Aspect information not (yet?) available or unspecified, not 
> writing vprp header.
> Writing header...
> ODML: Aspect information not (yet?) available or unspecified, not 
> writing vprp header.
> Error while decoding frame!0.00fps Trem:   0min   0mb  A-V:0.000 [0:0]
>
> 1 duplicate frame(s)!
> Writing header...
>
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In the past there were  problems with some PNG file. Try converting the 
images to jpeg and see if they work.
Ciao!
          mario

-- 
Ing. Mario Valle
Visualization Group                              | http://www.cscs.ch/~mvalle
Swiss National Supercomputing Centre (CSCS)      | Tel:  +41 (91) 610.82.60
v. Cantonale Galleria 2, 6928 Manno, Switzerland | Fax:  +41 (91) 610.82.82