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D
Dmitrii Kuzakov
Inspiring
January 31, 2017
Question

How to get animation frame ID?

  • January 31, 2017
  • 2 replies
  • 967 views

Hello!

I'm trying to get identifiers of frames on the timeline panel (Frame animation mode).

I see, that they are stored inside Image Resource Section of PSD file.

Resource ID is 4000 (0x0fa0) which is supposed to be used by plug-ins.

But I can't figure out how to get them using javascript or OLE-automation. Is it possible?

And if not, is it possible to read them from C/C++ plug-in and send to javascript?

This topic has been closed for replies.

2 replies

oliverIntergrafika
oliverIntergrafika
Inspiring
February 1, 2017

Is there a way to get the current timeline frame number in Frame Animation mode?
.

I had this same question a while ago. But no real solution exists as I know.

If You are in an extension panel, You can listen to JSONEvents from PS. One of these events is SELECT which is mirroring Timeline frame changes:


{"_obj":"select","null":{"_index":1,"_ref":"animationFrameClass"}}

But You still don't know which is the actual frame when You open or switch to a fresh .psd.

SuperMerlin
SuperMerlin
Inspiring
January 31, 2017

See if this thread helps...

Can I read/write inpoint and outpoint of clips in a Video Group with scripting?

D
Dmitrii KuzakovAuthor
Inspiring
February 1, 2017

That works with video timeline only. For frame animation there is "animationClass" and "animationFrameClass" and I know how to select frames and get/set delays, but not the ID.

D
Dmitrii KuzakovAuthor
Inspiring
February 1, 2017

Would this work to get the current frame selected?

function currentFrameNumber(){ 
   var ref = new ActionReference(); 
   ref.putProperty( charIDToTypeID('Prpr') , charIDToTypeID('NmbL'))
   ref.putEnumerated( charIDToTypeID('Dcmn'), charIDToTypeID('Ordn'), charIDToTypeID('Trgt') ); 
   var count = executeActionGet(ref).getInteger(charIDToTypeID('NmbL')) +1; 
backGround = activeDocument.artLayers[activeDocument.artLayers.length - 1].isBackgroundLayer ? 0 : 1;
   for(i=backGround; i<count; i++){ 
        ref = new ActionReference(); 
        ref.putIndex( charIDToTypeID( 'Lyr ' ), i );
        var desc = executeActionGet(ref);
        var adjustment = false;
        if(desc.getBoolean(stringIDToTypeID('visible'))) return i;
   }
};
alert(currentFrameNumber());

No.

Unfortunately, your code works with layers, not animation frames. And in my case it always returns 1, because all my layers are visible on every animation frame.

It's pretty popular approach when for every animation frame there is only one visible layer. But it's not my case.

Yet again, I'm looking for a way to get persistent identifier of animation frame. It is stored inside PSD file. There is a descriptor with CharID 'AnDs' with list 'FrIn' which contains frame ids with key 'FrID'.

I can easily parse them from psd file, but I need them at runtime even from a document that is not saved yet.

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