Revese TrackEvent

nonam3 wrote on 10/30/2021, 4:56 PM

Hello,

I want to reverse `TrackEvent`, in c# script, so it plays backwards, unfortunately I can't figure it out. Did seen API documentation and only method for reverse is Subclip but when doing same in Vegas I see no additional subclip so I suppose it's not the way it's done by reverse tool.

Currently I'm stuck on step when I have `TrackEvent` but can't figure out way to access media and reverse playback it.

Any advice more then welcome.
Best regards.

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Comments

Thiago_Sase wrote on 2/12/2025, 2:48 PM

@jetdv

It would certainly take some thinking to get to the best solution.

That's for sure, Sir.

Thiago_Sase wrote on 2/12/2025, 2:49 PM

@nonam3 Thanks for the tip, I tried it, but did not work;

double playbackRate = evnt.PlaybackRate;


Timecode mediaOffset = MyTake.Offset;
Timecode eventLength = evnt.Length;


Timecode adjustedOffset = Timecode.FromMilliseconds(mediaOffset.ToMilliseconds() * playbackRate);


Timecode reversedStart = Timecode.FromMilliseconds(
    adjustedOffset.ToMilliseconds() + (MyTake.Length.ToMilliseconds() * playbackRate) - (eventLength.ToMilliseconds() * playbackRate)
);

jetdv wrote on 2/12/2025, 2:58 PM

@Thiago_Sase, my thought would be:

Change the Playback Rate to 1
Change the length to match a Playback Rate of 1 (length / Playback Rate)
Reverse the event
Change the length back to the original event length
Change the Playback Rate back to the original Playback Rate

Thiago_Sase wrote on 2/12/2025, 3:08 PM

@Thiago_Sase, my thought would be:

1. Change the Playback Rate to 1

2. Change the length to match a Playback Rate of 1 (length / Playback Rate)

3. Reverse the event

4. Change the length back to the original event length

5. Change the Playback Rate back to the original Playback Rate

@jetdv I'll try to create that structure, step by step, and see if solve the issue. Thanks.