How to get the seconds on a frame from the timeline

Question

We use the Frame Animation Timline to animate some things for our project, and we want to write a JavaScript tool to export the frame timings to a format that can be read by the rest of our content pipeline.  With the script logging plugin, I've managed to capture how the data is set. But admittedly don't know how to go about pulling the data out of the currently selected frame. var idsetd = charIDToTypeID( "setd" );
    var desc230 = new ActionDescriptor();
    var idnull = charIDToTypeID( "null" );
        var ref1 = new ActionReference();
        var idanimationFrameClass = stringIDToTypeID( "animationFrameClass" );
        var idOrdn = charIDToTypeID( "Ordn" );
        var idTrgt = charIDToTypeID( "Trgt" );
        ref1.putEnumerated( idanimationFrameClass, idOrdn, idTrgt );
    desc230.putReference( idnull, ref1 );
    var idT = charIDToTypeID( "T   " );
        var desc231 = new ActionDescriptor();
        var idanimationFrameDelay = stringIDToTypeID( "animationFrameDelay" );
        desc231.putDouble( idanimationFrameDelay, 1.000000 );
    var idanimationFrameClass = stringIDToTypeID( "animationFrameClass" );
    desc230.putObject( idT, idanimationFrameClass, desc231 );
executeAction( idsetd, desc230, DialogModes.NO );

HVStudios · Accepted Answer

With the help of c.pfaffenbickler, was able to get something put together. Here was my final result to get the frame time of the currently select frame.

function GetFrameTime()
{
    var r = new ActionReference();
    r.putProperty(charIDToTypeID('Prpr'), stringIDToTypeID('animationFrameDelay'));
    r.putClass(stringIDToTypeID('animationFrameClass'));
    var ret = executeActionGet(r);
    return ret.getDouble(stringIDToTypeID('animationFrameDelay'));
}

c.pfaffenbichler · Answer

I don’t know who originally presented this code, I cannot locate the thread over on ps-scripts.com anymore.

function getFrameRate() {
   
   var actionRef = new ActionReference();
   actionRef.putProperty(charIDToTypeID('Prpr'), stringIDToTypeID("frameRate"));
   actionRef.putClass(stringIDToTypeID("timeline"));

   var desc=new ActionDescriptor();
   desc.putReference(charIDToTypeID('null'), actionRef);
         
   var TC=executeAction(charIDToTypeID('getd'), desc, DialogModes.NO);
   var frameRate=TC.getDouble(stringIDToTypeID("frameRate"));

   return frameRate;
}

function getFrame(IO) {

   if (IO == "in") var tIO = stringIDToTypeID("workInTime");
   if (IO == "out") var tIO = stringIDToTypeID("workOutTime");
   if (IO == "playHead") var tIO = stringIDToTypeID("time");

   var fr = 0;
   var secs = 0;
   var mins = 0;
   var hrs = 0;
   var frRate = 30.0;
   
   var rate = stringIDToTypeID("frameRate");
   var frame = stringIDToTypeID("frame");
   var seconds = stringIDToTypeID("seconds");
   var minutes = stringIDToTypeID("minutes");
   var hours = stringIDToTypeID("hours");

   var tLine=stringIDToTypeID("timeline");
   var get=charIDToTypeID('getd');
   var nul=charIDToTypeID('null');
   var prop=charIDToTypeID('Prpr');
   
   var actionRef = new ActionReference();
   actionRef.putProperty(prop,tIO);
   actionRef.putClass(tLine);

   var desc=new ActionDescriptor();
   desc.putReference(nul, actionRef);
         
   var TC=executeAction(get,desc,DialogModes.NO);
   var TL=TC.getObjectValue(tIO);
   
   try {fr=TL.getInteger(frame);} catch(e){}
   try {secs=TL.getInteger(seconds);} catch(e){}
   try {mins=TL.getInteger(minutes);} catch(e){}
   try {hrs=TL.getInteger(hours);} catch(e){}
   frRate = TL.getDouble(rate);

   return hrs * 3600 * frRate + mins * 60 * frRate + secs * frRate + fr;

}
alert(getFrame("in"));
alert(getFrame("out"));
alert(getFrame("playHead"));

alert(getFrameRate());

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