VMD-L Mailing List

From: John Stone (johns_at_ks.uiuc.edu)
Date: Fri Aug 09 2002 - 17:00:08 CDT

Hi,
  I wanted to send an update on this, I've been working with the NetPBM
maintainers to fix some problems but first I ran into a bunch of compilation
issues so we've been fixing those first. I'll post a note on this when
we've figured out what's going on with the ppmtompeg encoding problem.
In the mean time it looks like the older version of NetPBM is the easiest
short-term solution.

  John

On Thu, Aug 01, 2002 at 03:07:25PM -0400, mimurra3 wrote:
> All,
>
> I am having issues getting vmdmovie to create an mpeg file. The script seems
> to run just fine. It creates the rgb files and then converts them to ppm
> without problems. However, ppmtompeg creates an mpeg file of zero size. I
> saw a previous message to the list with the same problem but we are the most
> recent version of Netppm and version 1.7.1 of VMD under Linux.
>
> I changed the script to keep the rgb and ppm files. I looked at the ppm files
> using GIMP and they definitely contain pictures. When I tried running
> ppmtompeg from the command line using the script created by VMD I don't get an
> error message. Instead, it outputs only
>
> MPEG ENCODER STATS (1.5b)
> ------------------------
> TIME STARTED: Thu Aug 1 13:06:22 2002
> MACHINE: unknown
> FIRST FILE: /home/mimurra3/movie_stuff/test/untitled.0000.ppm
> LAST FILE: /home/mimurra3/movie_stuff/test/untitled.0179.ppm
> PATTERN: ibbpbbpbbpbbpbb
> GOP_SIZE: 15
> SLICES PER FRAME: 1
> RANGE: +/-32
> PIXEL SEARCH: HALF
>
> and again creates an empty .mpg file. Any help would be greatly appreciated.
>
> thanks,
> Mike
>
> --------------------------
> Michael Murray
> Virginia Polytechnic Institute and State University
> Biochemistry Department
> 201 Engel Hall
> 

-- 
NIH Resource for Macromolecular Modeling and Bioinformatics
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