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

[Gilles Quemener]

Hello,

Thanks a lot for your answers, I have tested them, but without any success :

At http://lpscwww.in2p3.fr/UCN/PNG  you may find some files related to 
this problem :

-    img_png.tar.gz  containing all my png images taken from a POVRAY 
sample page
-    img_jpg.tar.gz   containing some of the above png images converted 
into jpg using
                               "convert" from ImageMagick
-    sortie.avi          obtained from the jpg images using the 
following command :
/ucn/quemener/local/MPlayer-1.0pre8/bin/mencoder "mf://*.jpg" -mf 
fps=25:type=jpg -ovc lavc -lavcopts vcodec=mpeg4 -of avi -o sortie.avi

It looks upside down and very bad when l play it with MPlayer ! Any 
hints are more than welcome !
Thanks,

   Gilles


Mario Valle wrote:

> 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
>