video files

[Katie U]

Hi David,

Thanks for the suggestion! I think it is a codec problem because the
size of the file isn't an issue and the file path is also correct. I'm
trying VirtualDub, but I keep getting this error when I try to upload
the video file: "VirtualDub requires a Video for Windows (VFW)
compatible codec to decompress video. DirectShow codecs, such as those
used by Windows Media Player, are not suitable".

I've tried this on multiple computers with different types of files
(avi, mpeg, mpeg4, etc.)- is it just that they all do not have the
right codecs to play the file? Do I need to download some type of
converter to use VirtualDub? Thanks again for your help!

-Katie

On Sep 22, 12:07 pm, David Vinson <d.vin... at ucl.ac.uk> wrote:
> Hi Katie,
>
> It's hard to guess what your problem might be without knowing a little
> more (eg video file size, etc).  In my experience trying to get videos
> of various types to work in E-Prime, most video problems tend to be
> codec problems rather than anything else.
>
> You can also do a simple experiment to test whether size matters -
> create a video that includes only a few frames of your large/problematic
> video, and see whether E-Prime likes it.  If it still doesn't work, this
> should rule out size as a source of your problem.
>
> If it's a codec problem, here's a very quick summary of what PST Support
> suggested to me with a similar problem: download VirtualDub (stable
> 32-bit version), compress using ffdshow video codec, encoder type MJPEG,
> save as AVI.
> The very latest build of E-Studio (2.0.8.79) has added a Codec Config
> tool, which allows you to render these newly compressed video files
> before using them in an experiment. Seems handy in solving such problems
> although I haven't worked with this in detail yet.
>
> Your problem could also be something completely different - is the
> problem movie file in the experiment directory? (or does it have the
> path correctly designated).
>
> good luck,
> David V
>
> On 22/09/2010 16:41, Katie U wrote:
>
> > I'm trying to load a film clip into E-Prime and for some reason it
> > won't load the movie file. I've tried multiple formats (both mpg and
> > avi) to no avail. Other film clips load fine into the same experiment
> > file, but they're much smaller. Does E-Prime have a limit on the size
> > of the movie file and that's why it won't load? Thanks in advance!
>
> --
> David Vinson, Ph.D.
> Senior Postdoctoral Researcher
> Cognitive, Perceptual and Brain Sciences Research Department
> University College London
> 26 Bedford Way, London WC1H 0AP
> Tel +44 (0)20 7679 5311  (UCL internal ext. 25311)

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