how can i add freeze frame at markers via script?

iEmby wrote on 2/8/2024, 6:52 AM

i want to create freeze frame at the one frame before the last frame of selected event.
i create script for adding markers at required position.

i need a code of adding velocity point at markers which should be freeze.New comment

in simple words there will be two velocity points

first ---- at third last frame of value 100%

second --- at second last frame of value 0%

this is script for add markers at second last frame of selected events

using System;

using System.Collections.Generic;

using ScriptPortal.Vegas;

using System.Windows.Forms;

public class EntryPoint

{

public void FromVegas(Vegas vegas)

{

List<TrackEvent> selectedEvents = GetSelectedEvents(vegas);

if (selectedEvents != null && selectedEvents.Count > 0)

{

AddMarkerOneFrameBeforeLastFrame(selectedEvents, vegas);

MessageBox.Show("Markers added one frame before the last frame of selected events.", "Info", MessageBoxButtons.OK, MessageBoxIcon.Information);

}

else

{

ShowWarningMessage("No selected events in the project.");

}

private List<TrackEvent> GetSelectedEvents(Vegas vegas)

{

List<TrackEvent> selectedEvents = new List<TrackEvent>();

foreach (Track track in vegas.Project.Tracks)

{

foreach (TrackEvent trackEvent in track.Events)

{

if (trackEvent.Selected)

{

selectedEvents.Add(trackEvent);

}

return selectedEvents.Count > 0 ? selectedEvents : null;

}

private void AddMarkerOneFrameBeforeLastFrame(List<TrackEvent> selectedEvents, Vegas vegas)

{

foreach (TrackEvent selectedEvent in selectedEvents)

{

// Calculate one frame before the last frame time

Timecode oneFrameBeforeLastFrame = selectedEvent.Start + selectedEvent.Length - Timecode.FromMilliseconds(1);

// Add a marker one frame before the last frame of the selected event

Marker marker = new Marker(oneFrameBeforeLastFrame);

vegas.Project.Markers.Add(marker);

// Refresh the Vegas UI

vegas.UpdateUI();

}

private void ShowWarningMessage(string message)

{

// Use a MessageBox or any other method to display the warning message

MessageBox.Show(message, "Warning", MessageBoxButtons.OK, MessageBoxIcon.Warning);

}

Comments

m3lquixd wrote on 2/8/2024, 7:58 AM

I liked the idea of this script, I don't understand why it needs the marker.
But in this case, it's not working yet, right?

And you can place your code within this section, it becomes more organized. 😀

jetdv wrote on 2/8/2024, 9:57 AM

You need to adjust the Velocity Envelope. As was mentioned, you really don't need to add markers. This will let you find the velocity envelope on an event:

This one shows how to read the value of the envelope at any point in the envelope:

First, add this routine to your code:

        public void AddVelocityPoint(Envelope VelEnv, Timecode PointLoc, double PointSpeed)
        {
            EnvelopePoint a = VelEnv.Points.GetPointAtX(PointLoc);
            if (a == null)
            {
                a = new EnvelopePoint(PointLoc, PointSpeed);
                VelEnv.Points.Add(a);
            }
            else
            {
                a.Y = PointSpeed;
            }
        }

Then you can eliminate the creation of the markers and use this for each video event as needed:

                            VideoEvent vevnt = (VideoEvent)evnt;
                            Envelope vEnv = null;
                            foreach (Envelope env in vevnt.Envelopes)
                            {
                                if (env.Type == EnvelopeType.Velocity)
                                {
                                    vEnv = env;
                                }
                            }
                            if (vEnv == null)
                            {
                                vEnv = new Envelope(EnvelopeType.Velocity);
                                vevnt.Envelopes.Add(vEnv);
                            }

                            Timecode oneFrameBeforeLastFrame = selectedEvent.Length - Timecode.FromMilliseconds(1);
                            AddVelocityPoint(vEnv, oneFrameBeforeLastFrame, 1.0);
                            AddVelocityPoint(vEnv, selectedEvent.Length, 0.0);

Naturally, to see the "frozen" image you'll need to lengthen each of those events.

m3lquixd wrote on 2/8/2024, 11:38 AM

@iEmby If you can make it work, please make it available here for everyone, I'm interested in this script!

jetdv wrote on 2/8/2024, 12:00 PM

Try this to add a freeze frame at the end of each selected event. As I noted above, you'll need to now extend the events in order to see the frozen frame. No markers needed...

using System;
using System.Collections.Generic;
using System.Collections;
using System.IO;
using System.Text;
using System.Windows.Forms;
using System.Globalization;
using System.Drawing;
using System.Runtime;
using System.Xml;
using ScriptPortal.Vegas;

namespace Test_Script
{
    public class Class1
    {
        public Vegas myVegas;

        public void Main(Vegas vegas)
        {
            myVegas = vegas;

            foreach(Track myTrack in myVegas.Project.Tracks)
            {
                if (myTrack.IsVideo())
                {
                    foreach(VideoEvent vEvent in myTrack.Events)
                    {
                        if (vEvent.Selected)
                        {
                            Envelope vEnv = null;
                            foreach (Envelope env in vEvent.Envelopes)
                            {
                                if (env.Type == EnvelopeType.Velocity)
                                {
                                    vEnv = env;
                                }
                            }
                            if (vEnv == null)
                            {
                                vEnv = new Envelope(EnvelopeType.Velocity);
                                vEvent.Envelopes.Add(vEnv);
                            }

                            Timecode oneFrameBeforeLastFrame = vEvent.Length - Timecode.FromMilliseconds(1);
                            AddVelocityPoint(vEnv, oneFrameBeforeLastFrame, 1.0);
                            AddVelocityPoint(vEnv, vEvent.Length, 0.0);
                        }
                    }
                }
            }
        }

        public void AddVelocityPoint(Envelope VelEnv, Timecode PointLoc, double PointSpeed)
        {
            EnvelopePoint a = VelEnv.Points.GetPointAtX(PointLoc);
            if (a == null)
            {
                a = new EnvelopePoint(PointLoc, PointSpeed);
                VelEnv.Points.Add(a);
            }
            else
            {
                a.Y = PointSpeed;
            }
        }
    }
}

public class EntryPoint
{
    public void FromVegas(Vegas vegas)
    {
        Test_Script.Class1 test = new Test_Script.Class1();
        test.Main(vegas);
    }
}

m3lquixd wrote on 2/8/2024, 12:22 PM

Thank you!

iEmby wrote on 2/9/2024, 4:05 AM

@jetdv thanks so much sir.. u r really god to me.💯💯

iEmby wrote on 2/11/2024, 4:11 PM

@jetdv sir how can i get that a track is a parent track or not.. how can i get it via code?

jetdv wrote on 2/11/2024, 8:29 PM

@iEmby, here's a simple case. But there's a lot more that can be determined. I'll have to create a new tutorial on that.

            foreach(Track myTrack in myVegas.Project.Tracks)
            {
                if (myTrack.IsVideo())
                {
                    VideoTrack vTrack = (VideoTrack)myTrack;
                    bool IsParent = vTrack.IsCompositingParent;
                }
            }

Also see here:

iEmby wrote on 2/12/2024, 3:05 AM

@iEmby, here's a simple case. But there's a lot more that can be determined. I'll have to create a new tutorial on that.

            foreach(Track myTrack in myVegas.Project.Tracks)
            {
                if (myTrack.IsVideo())
                {
                    VideoTrack vTrack = (VideoTrack)myTrack;
                    bool IsParent = vTrack.IsCompositingParent;
                }
            }

Also see here:

thanks for your unconditional support sir