expression to show comments and duration between markers :)

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expression to show comments and duration between markers :)
by Chifei Soong on May 25, 2012 at 9:22:15 am

source text expression:
small expression to display duration between markers in layer.
(modified from Dan's marker expression)
------------------------
need help:
now the expressions gets the time from nearest markerKey, need to make the expression hold until the next marker, so that the value wont change half-way between 2 markers
Thanks :D



p=thisLayer; //layer where the markers is



if (p.marker.numKeys > 0) try{

  n = p.marker.nearestKey(time).index;

  m = p.marker.key(n).time; m2=p.marker.key(n+1).time;

c=p.marker.key(n).comment; 

v=m2-m;

} 

catch(err){ c=p.marker.key(n).comment; m=0; m2=p.marker.key(n).time; m3=thisComp.duration; v=m3-m2;}



 c+"r"+timeToTimecode(v)

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Re: expression to show comments and duration between markers :)
by Dan Ebberts on May 25, 2012 at 4:26:22 pm

I think you're after something like this:





m = thisLayer.marker; //layer where the markers is

n = 0;

if (m.numKeys > 0){

  n = m.nearestKey(time).index;

  if (m.key(n).time > time) n--;

  if (n == m.numKeys){ // after last marker

    t = thisComp.duration - m.key(n).time;

    c = m.key(n).comment;

  }else if (n == 0){ // before first marker

    t = m.key(1).time;

    c = "";

  }else{ //between two markers

    t = m.key(n+1).time - m.key(n).time;

    c = m.key(n).comment;

  }

}else{ // no markers

  t = thisComp.duration;

  c = "";

}



c + "r" + timeToTimecode(t)

(note that the "r" in the last line should be "(backslash)r"

Dan

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Re: expression to show comments and duration between markers :)
by Chifei Soong on May 25, 2012 at 4:54:46 pm

Yes it works perfectly as i wanted.

:) thanks Dan!

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