How to get source clip times?

[maximus1105]

How to get source clip times, for sequence markers or player position or clip start and end points?

If I make a sub sequence and change start time, I lose original sequence time values.

so I need original clip times. Is there a way to get this?

[e_d_]

Let me rephrase to make sure this is understood correctly:

You have a sequence A containing some clips, which you duplicate (or create a nested sequence from) to sequence B, and you then change the starting time(code) of sequence B.

Now you want to iterate through sequence B, but you need to have the in and out values of the respective clips in sequence A, is this correct?

In that case, I would tend to think if sequence B is a "clip" in sequence A, and you know the in-point of sequence B (in sequence A), it's pretty straightforward, isn't it?

[maximus1105]

to simplify my request.

How  do you get a clip time in source monitor ,when you place a marker in a sequence timeline ?

[e_d_]

Thanks for clarifying. So basically you want to perform a "match frame" operation.

Well, PrPro gives you the start time for a clip on a track, and when you subtract this from the current playhead position in the timeline, and add the result to the clip's inPoint, you're pretty much there, aren't you?

[maximus1105]

Exactly. I'm trying to find "Match Frame" Time.

But I tried above method, but its not giving me time from source clip except 0. May be i'm not doing it right.

[maximus1105]

Anyone know how to get CLIP TIME (Seconds, Ticks or TimeCode) from at corresponding Match Frame Position of a Player Position in timeline sequence ?

[e_d_ · Accepted solution]

Here's some proof of concept code. Please bear in mind though the QE DOM is not officially supported. This assumes Your CTI is placed somewhere on the first clip which is placed on the first video track of your timeline. The caveat here is this currently won't work with frame based file sequences.

var CTI_ticks = app.project.activeSequence.getPlayerPosition().ticks;
var clip = app.project.activeSequence.videoTracks[0].clips[0];
if ((parseInt(clip.start.ticks) <= parseInt(CTI_ticks)) && parseInt(CTI_ticks) < parseInt(clip.end.ticks)) {
    var offset = parseInt(CTI_ticks) - parseInt(clip.start.ticks); // ticks property is a string thus needs conversion
    var frame = parseInt(clip.inPoint.ticks)+offset;
    var ftime = frame/254016000000;
    app.enableQE();
    qe.source.openFilePath(clip.projectItem.getMediaPath());
    if (ExternalObject.AdobeXMPScript === undefined) {
        ExternalObject.AdobeXMPScript = new ExternalObject('lib:AdobeXMPScript'); 
    }
    if (ExternalObject.AdobeXMPScript !== undefined) { 
        var info = new XMPMeta(clip.projectItem.getProjectMetadata());
        var theNS = "http://ns.adobe.com/premierePrivateProjectMetaData/1.0/";
        var timebase = info.getProperty(theNS,"Column.Intrinsic.MediaTimebase");
        timebaseF = parseFloat (timebase.value.replace (" fps","").replace(",",".")); // should a comma be used instead of a decimal point
        var frames = timebaseF * (ftime-Math.floor(ftime));
        var timeFormat = ""+Math.floor(ftime)+"."+frames;
        qe.source.player.startScrubbing();
        qe.source.player.scrubTo(timeFormat);  // will take either TC or seconds.frames, not seconds.milliseconds!
        qe.source.player.endScrubbing();
        // or use qe.source.player.setInPoint(timeFormat) // will take either TC or seconds.frames, not seconds.milliseconds!
    }
}

[e_d_]

Hi maximus1105​,

have you tried my proposed solution? Follow-up is always appreciated...

Best,

e.d.

[maximus1105]

e.d,

I'm sorry not to respond immediately.

I simply opened a sequence and tried to run the code as-is, from ExtendScript Toolkit ,

Premiere Pro stopped responding and I had to Shut down. And I couldn't open the sequence again. I had to get a copy of sequence to restore it.

I'm sure I might have done something wrong.

May be I have to include additional libraries. I'm not sure.

But thanks for your solution. I'll try again.