| Re: CW_Animate procedure... [message #32164 is a reply to message #32156] |
Thu, 12 September 2002 11:18   |
Rick Towler
Messages: 821
Registered: August 1998
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Senior Member |
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You can always use an external program to adjust the frame rate. I know the
freeware virtualDub will do this. The problem is that the MPEG standard
requires video to be encoded at one of a few specific rates. If you want
your video to run at around 30%, you'll need to encode at 10 fps which isn't
a legal MPEG rate, so you'll have to encode to .AVI. Another downside to
this approach is that you will be re-encoding the MPEG file which will
degrade the quality even further. Plus you'll undoubtedly enter codec
hell...
Can you just insert individual frames more than once?
-Rick
"M" <mrmanish@bigfoot.com> wrote
> Bugger! Oh well..... :-((
>
> Thanks for your help anyway David, it's appreciated!
>
> Manish
>
> --
>
> "David Fanning" <david@dfanning.com> wrote
>> M (mrmanish@bigfoot.com) writes:
>>
>>> I'm writing a program that uses the CW_ANIMATE procedure to animate
> plots,
>>> then write them to an mpeg file. This is all working fine, but when i
> come
>>> to write the mpeg (via the save button in the widget), it only writes
it
> at
>>> full speed (frame rate).... :-( I can view it fine at (say) 30%
> speed,
>>> but saving it as mpeg at that speed is a problem.
>>>
>>> I was wondering, is there a way to write the mpeg at a specified %
frame
>>> rate, ie 30% of full speed?
>>
>> No. :-)
>>
>> Cheers,
>>
>> David
>>
>> --
>> David W. Fanning, Ph.D.
>> Fanning Software Consulting, Inc.
>> Phone: 970-221-0438, E-mail: david@dfanning.com
>> Coyote's Guide to IDL Programming: http://www.dfanning.com/
>> Toll-Free IDL Book Orders: 1-888-461-0155
>
>
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