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Re: MP4/Animated GIF/JPEG woes....(Windows, IDL 8.1) [message #76868]

Mon, 11 July 2011 11:25

Juggernaut
Messages: 83
Registered: June 2008

Member

On Jul 11, 11:59 am, Daft Pict <brianjmcl...@gmail.com> wrote:
> I've just started collaborating with some planetary astronomers who
> tend to use very different tools compared to us traditional
> observational astronomers :-) It's fun but I'm trying to generate
> products that they use (and I typically don't) and having some teeth-
> gnashing moments and screaming at the IDL help pages....
>
> 1). Creating an MP4 file from a stream of images - seems easy
> according to the help pages and I duplicated the example code. The
> resulting file is playable on my windows box using media player, but
> not when using QuickTime on either windows or their Mac systems.
>
> 2) Animated GIFs again seem straightforward, except that write_gif
> appears to reset my color table so I lose the color in overlays over
> images. I pass in the current RGB values from the common block after
> setting my tables but the gif file is B&W and the RGB arrays are all
> reset!
>
> 3) Even tried animated JPEG since the help pages describes how to do
> it, but the sample code doesn't work as I get an error when trying to
> use the unit option even though it is described in the help....
>
> Venting over - if anyone has some suggestions as to what causes any of
> these problems or have solved these issues, are please let me know
> cheers - Brian

For anyone who doesn't have IDL 8.1 and would like to create high
quality videos...just look at the ffmpeg toolset. It lets you create
a wide variety of encoded video formats and takes something as simple
as a series of images or you can delve into their C++ API to write
your own video creation code.

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[Message index]

		Re: MP4/Animated GIF/JPEG woes....(Windows, IDL 8.1) By: Juggernaut on Mon, 11 July 2011 11:25
		Re: MP4/Animated GIF/JPEG woes....(Windows, IDL 8.1) By: Daft Pict on Mon, 11 July 2011 10:30
		Re: MP4/Animated GIF/JPEG woes....(Windows, IDL 8.1) By: Haje Korth on Mon, 11 July 2011 10:16
		Re: MP4/Animated GIF/JPEG woes....(Windows, IDL 8.1) By: Michael Galloy on Mon, 11 July 2011 09:29
		Re: MP4/Animated GIF/JPEG woes....(Windows, IDL 8.1) By: AndrewM on Tue, 12 July 2011 13:51

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