Yes, i'm not sure to understand this post, but the way is to build 2 movies,
one running in the original direction, and another running back. So when you
want to read forward, you index the frame of the first movie, when you want
to read backward, you swap your movie, and index the frame of the second
movie (witch is running back).
Good idea
David Buff
----- Original Message -----
From: "Toby" <[EMAIL PROTECTED]>
To: "'Flashcoders mailing list'" <flashcoders@chattyfig.figleaf.com>
Sent: Tuesday, October 10, 2006 5:17 PM
Subject: RE: Re: [Flashcoders] Playing video backwards kills my CPU
If you want to play video backwards don't be silly and try and rewind your
actual movie (for the reasons already outlining in the email responses >
compression and keyframes)
You will need to do this in a video editing program, then export a
separate
video. This solution is feasible if your .mov displays a 3D model and you
want to reverse an animation maybe...
You need to look at your brief, asses why you are trying to rewind the
video, and then look for the best technology to do this. Telling flash to
go
through your compressed movie backwards frame by frame is lunacy (as you
are
finding out the hard way).
Sort it out, or your clients expectations (or even your own!).
T
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:flashcoders-
[EMAIL PROTECTED] On Behalf Of nelson ramirez
Sent: 10 October 2006 15:45
To: Flashcoders mailing list
Subject: Re: Re: [Flashcoders] Playing video backwards kills my CPU
Have you tried flv. don't know why but flvs always work much smoother for
me.
On 10/10/06, Zeh Fernando <[EMAIL PROTECTED]> wrote:
> > It seems to work but it kills my CPU making everyother thing in the
site
> > not
> > working and making the video running slowlier. When I go back to
fordward
> > playing everything goes back to normality.
> > Any clues? Do I have to look for some flaws in my code or is there
> > something
> > wrong with embbebed video?
>
> It's probably neither one of those alternatives - it's more like a fact
of
> life.
>
> The way temporal compression works for video is by having one keyframe
(the
> entire image) followed by several frames (chunks of image that only
specify
> changes to the image data). When doing forward this is fine, but when
> seeking to a different frame, the render has to actually go to an
specific
> keyframe, then render forward to the specified frame. Because of this,
going
> backwards really *is* much more difficult to any player or codec
> (unless
you
> have one keyframe every frame, which defeats the purpose of temporal
> compression).
>
> If you're having that problem, try lowering the steps between keyframes
on
> your video (say, one keyframe every 15 frames instead of one every 30
> frames). It should make things better, but at a cost - your video file
will
> be bigger.
>
>
> Zeh
>
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