Convert Selected Keyframes to Markers with custom label(marker color)

[Dan Ebberts]

Something like this maybe:

function ConvertKeyframesToMarkers(){
	var comp = app.project.activeItem;
	if (! comp || ! (comp instanceof CompItem)){
		alert("No comp active.");
		return;
	}
	var props = comp.selectedProperties;
	var prop;
	var layer;
	var marker;
	var markerVal = new MarkerValue("");
	markerVal.label =1; // red
	for (var i = 0; i < props.length; i++){
		prop= props[i];
		layer = prop.propertyGroup(prop.propertyDepth);
		marker = layer.property("Marker");
		if (! (prop.propertyType == PropertyType.PROPERTY)) continue;
		for (var j = 1; j <= prop.numKeys; j++){
			marker.setValueAtTime(prop.keyTime(j), markerVal);
		}
	}
}
ConvertKeyframesToMarkers();

[Eva Boe]

Thank you very much Mr. Dan. Worked perfectly.

While I have you, I’m working with this expression below to use marker’s index to count the number of markers and put in “Offset” value with a little easing.

I want the value to start from 0 every time there is a marker with empty comment.

// Check for markers
numMarkers = marker.numKeys;
// Assign value to marker index with easing
if (numMarkers > 0) {
    nearestMarkerIndex = marker.nearestKey(time).index;
    markerTime = marker.key(nearestMarkerIndex).time;
    if (markerTime > time && nearestMarkerIndex > 1) {
        prevMarkerTime = marker.key(nearestMarkerIndex - 1).time;
        t = (time - prevMarkerTime) / (markerTime - prevMarkerTime);
        markerIndex = nearestMarkerIndex - 1 + ease(t, 0, 1, 0, 1);
    } else {
        markerIndex = nearestMarkerIndex;
    }
} else {
    // No markers, set markerIndex to 0
    markerIndex = -1;
}
// Use marker index value
markerIndex;

[Dan Ebberts]

I’m not exactly sure what you’re after, but this is how I’d calculate how long it’s been since the last marker with no comment:

m = marker;
t = 0;
if (m.numKeys > 0){
  n = m.nearestKey(time).index;
  if (time < m.key(n).time) n--;
  if (n > 0){
    for (i = n; i > 0; i--){
      if (m.key(i).comment == ""){
        t = time - m.key(i).time;
        break;
      }
    }
  }
}
t

[Eva Boe]

Yeah… something like this.

The expression you provided works but it starts counting from .1 but I want to ease into 1 (first marker) and then 2 (second marker) etc.

[Dan Ebberts]

Something more like this maybe:

m = marker;
easeTime = .25;
n = 0;
if (m.numKeys > 0){
  n = m.nearestKey(time).index;
  if (time < m.key(n).time) n--;
}
n > 0 ?  ease(time,m.key(n).time,m.key(n).time+easeTime,n-1,n) : 0

[Eva Boe]

No, not really.
I want the empty markers to act like a “reset button” so the value starts with 1 at the marker after the empty “red” markers.

Is that possible?

[Dan Ebberts]

Ah, sorry, forgot that part. Try this:

m = marker;
easeTime = .25;
n = 0;
if (m.numKeys > 0){
  n = m.nearestKey(time).index;
  if (time < m.key(n).time) n--;
}
temp = n;
c = 0;
while (temp > 0){
  if (m.key(temp).comment == "") break;
  c++;
  temp--;
}
c > 0 ?  ease(time,m.key(n).time,m.key(n).time+easeTime,c-1,c) : 0

[Eva Boe]

Thank you once again Mr. Dan.

[Brie Clayton]

Thank you for your solve, Dan!