scrubbing video

what I think of is like opening a quicktime video on the Mac and using the 'knob' underneath the window to scrub back and forth.

Something like this might work for you.

best,
Zachary

maybe with jump ? look at the jit.qt.movie helpfile.

You've got all kinds of choices for scrubbing a movie:

1. You can choose a specific frame of a movie using the
(wait for it) "frame " message to jit.qt.movie.
Of course, you'll need to know how many "interesting"
frames are in your movie (sending the message "getframecount"
to the jit.qt.movie object and listening at the right outlet
of the object will give you that).

2. You can choose a point in time using the (yes, that's
right) "time " message to jit.qt.movie. But you've
gotta figure out how long the movie is, which involves
getting the QT movie's timescale and length in QT units
and doing some math.

3. You can jump by relative frame position using the
(this is getting tedious) "jump" message.

The choice is yours. The enclosed snippet will tell you
some useful things about a QuickTime movie when you
load it.

Here's something weird. I modified the first "scrubber" patch posted in order to continuously update the slider (attached below).

Every time you click on the slider, it actually moves the mouse pointer! So if you repeatedly click on a point on the slider, gradually the mouse pointer is dragged to the right! You can see the current time indicator ratcheting up as this happens.

I did not know UI elements had the power to do this?

hello,

For continuously update the slider you have to "gettime" from the jit.qt.movie.

Heres the patch;

Luis Marques

Yes, I know, my patch *does* use gettime, if you look at it.

The strange thing that I'm commenting about is that as you click on the slider, the mouse cursor is actually moved by a few pixels to the right every time. Just click repeatedly in the same place, and watch as the position value coming out of the slider gradually increments.

I can guarantee that this is the case, and not that I'm moving the mouse myself, because I'm using a trackpad, and not touching the pad.

Using mousefilter prevents this, but I *do* want to have continuous scrubbing, as in my patch.

Actually gpvillamil, the patch you pasted into your post was just my patch again. You must have mistakenly copied the wrong patch.

But anyways, try this one:

best,
Zachary

Whoops, I must have messed up. Anyway, my patch looks much like yours, using gettime to position the slider. (I used t b b and gettime message, your approach is more concise!)

However, even with your patch, the odd behavior occurs. Clicking repeatedly on the same part of the slider gradually moves the mouse cursor to the right.

It's not a big problem, everything else works. It's just a bit strange that the slider object seems to be able to change the mousepos. Maybe it's a Windows thing? It's as if the slider drags the mouse along with it.

Thanks for taking the time to look at this.