| Re: CW_Animate procedure... [message #32156] |
Fri, 13 September 2002 02:39 |
Manish
Messages: 20
Registered: April 2001
|
Junior Member |
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Thanks Rick, i'll give that a try, load each frame twice (or how ever many
needed) to slow it down enough!
Cheers for your help,
Manish
--
"Rick Towler" <rtowler@u.washington.edu> wrote in message
news:alqlsc$1cng$1@nntp6.u.washington.edu...
> 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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| 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
|
Senior Member |
|
|
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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| Re: CW_Animate procedure... [message #32165 is a reply to message #32164] |
Thu, 12 September 2002 10:21 |
Manish
Messages: 20
Registered: April 2001
|
Junior Member |
|
|
Bugger! Oh well..... :-((
Thanks for your help anyway David, it's appreciated!
Manish
--
"David Fanning" <david@dfanning.com> wrote in message
news:MPG.17ea7a873fda092f9899af@news.frii.com...
> 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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| Re: CW_Animate procedure... [message #32166 is a reply to message #32165] |
Thu, 12 September 2002 10:19 |
David Fanning
Messages: 11724
Registered: August 2001
|
Senior Member |
|
|
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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