Following a point in an embedded video

Question

I'm working with Actionscript 3.0 and I'm working on a project that requires me to know where a certain point in a video is at all times and have it relay that information to me via trace. I'm having a hard time figuring out how to select a point within the video and getting that point to move with the subject.
Any tips?

Answer 1

Oh that is something else entirely. I'm still not understanding what (and why) you are trying to do what you are trying to do.
Generally you won't be able to do a frame by frame playback of a video within Flash. Possibly if the video is an h.264, but certainly not if it is using the On2 Vp6 codec.
But otherwise you could just do something like this:
import flash.geom.Point;
import flash.display.MovieClip;
var clip:MovieClip;
var myPoints:Array=new Array();
clip.stop();
clip.addEventListener(MouseEvent.MOUSE_UP,handleClick);
function handleClick(e:Event){
var target:MovieClip=MovieClip(e.target);
myPoints.push(new Point(target.mouseX,target.mouseY));
if(clip.currentFrame<clip.totalFrames){
clip.nextFrame();
} else {
clip.removeEventListener(MouseEvent.MOUSE_UP,handleClick);
trace("All done");
trace(myPoints);
I don't have a video handy, so I made a movieclip with a tween inside it of a little green ball moving along. This code allowed me to click the ball at each step and when I reached the end of the clip it traced out my points.
It may be possible to do this with the video object, but I'm not sure the seek values will allow you to do a frame by frame thing.