| improving animation/mpeg quality [message #27700] |
Fri, 02 November 2001 10:48  |
patrick
Messages: 15
Registered: July 2001
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Junior Member |
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Folks-
I've written a simple animation code to cycle through a directory of
SST png files. Using XINTERANIMATE, the quality of the loop is pretty
good, especially if I manually set the MPEG quality to 100%. There is
a problem with the landmass being the wrong color but I can live with
this. The problem is when I write the loop to an MPEG file, the colors
change drastically and the MPEG loops too quickly. Is there a way to
improve MPEG quality, and control the speed of the loop? IDL seems
pretty short on control statements for MPEGs.
Regards,
Patrick
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| Re: improving animation/mpeg quality [message #27911 is a reply to message #27700] |
Thu, 08 November 2001 15:45  |
Rick Towler
Messages: 821
Registered: August 1998
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Senior Member |
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Try another tool to create the MPEG. IDL isn't the best tool in my
experience. I don't know if it is the choice of encoder or what but I have
had consistently better results using other tools, even with the new options
included in 5.4.
You didn't mention your platform. On windows, I use VideoMach
(http://www.gromada.com/) which is a shareware program ($19 non-commercial)
which will allow you to change the playback rate and set the quality amongst
other things.
I'm sure there are command line tools for Unix which may yield better
results. It may be worth a search.
-Rick
"Patrick McEnaney" <patrick@es.ucsc.edu> wrote in message
news:1eed0128.0111021048.530eadb8@posting.google.com...
> Folks-
>
> I've written a simple animation code to cycle through a directory of
> SST png files. Using XINTERANIMATE, the quality of the loop is pretty
> good, especially if I manually set the MPEG quality to 100%. There is
> a problem with the landmass being the wrong color but I can live with
> this. The problem is when I write the loop to an MPEG file, the colors
> change drastically and the MPEG loops too quickly. Is there a way to
> improve MPEG quality, and control the speed of the loop? IDL seems
> pretty short on control statements for MPEGs.
>
> Regards,
>
> Patrick
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