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Request For Animation Support

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shekh

Posted: Jun 1 2014, 05:45 PM

Advanced Member

Group: Members
Posts: 89
Member No.: 37903
Joined: 21-April 14

Hello,
I am developing a plugin which has keyframe animated parameters. Editing these parameters is similar to VD`s blend curve.
This seems something new to VirtualDub: I havent seen any other plugin with such controls.

So far I am quite happy with what I have, but want to highlight some issues:

1) There is no way to know current frame selected in the preview window.
It is required to scroll the curve editor and update displayed parameter values.
Right now I am using last frame passed through the plugin as a hint, however I understand this is not guaranteed to work always.

2) There is no way to control preview window (select current frame).
It is useful because while manipulating the parameter curve it is desirable to see synced picture.
I have no workaround: essentially I get two independent timelines (one in preview and other is mine) which I have to synchronize manually.

3) There is no way to roll my own preview. There is a SampleCurrentFrame, why not a SampleSpecificFrame?
If I could get random frame I could display a thumbnail near my curve editor.

4) There is no way to know anything about the timeline.
I`d like to know its length and maybe displayed scale (frames per pixels, frames per label).
This isnt really necessary, I just made infinite timeline with no scroll bands. And fixed scale seems ok (maybe because I am only processing clips few minutes long).

Thanks