looping overlay

[watermark1]

Hi,

I'm new to AVS so this might be a newb question but is there a way to loop a watermark/overlay so it appears and disappears every 5 mins throughout the entire video? I'll pay $20-30 through paypal or epassporte for full working code example if interested msg me at adam@datexc.com

I've seen random variations of this on the post but nothing through the whole video it's either at the beginning or end of the clips, etc.

[Guest]

In VirtualDub, you can instantiate multiple copies of my Logo filter, each programmed to begin at 5-minute intervals. It's not automatic, but a typical movie would be just tolerable (about 20 instances).

Otherwise, for custom development, your offer would pay for about 10 minutes of my time. :)

[stickboy]

1. Start with my basic example (http://www.avisynth.org/stickboy/etc/logo-example.zip).

2. Modify it as follows:

# Calculate how much we need to pad the mask clip by to fill 5 minutes.
numMinutes = 5
numPadFrames = Round(logoMask.FrameRate() * 60 * numMinutes) - logoMask.FrameCount()

# Pad the mask clip.
logoMask = logoMask + logoMask.BlankClip(length=numPadFrames)

# Make it loop indefinitely (for all practical purposes).
logoMask = logoMask.Loop()

Overlay(c, logo, ..., mask=logoMask)

3. Donate $20-30 to charity.

[actionman133]

By the way, my nickname is charity...

:)

Stickboy's method would work if you the intervals are exactly the same. If it's a movie with commercials or something else where the '5 minutes' is only an approximation, you'd need something more precise...

[watermark1]

Thanks for the quick replies, but my graphic design skills REALLY suck and I'm not even sure how to make a mask or crop it, etc. I don't even use photoshop..I use psp

I've been using this filter/plugin that lets you work with transparent backgrounds and I made a logo in that and use this code:

LoadPlugin("c:\windows\system32\immaavs.dll")
clip1 = DirectShowSource("video.avi")
clip2 = immareadpic("logo.png")

overlay (clip1, clip2, mode="blend", mask=showalpha(clip2), x=0, y=0)

I'm trying the combine your code but I'm not sure how to substitue logomask or any of that..please advise.

[stickboy]

If you're starting with a transparent PNG, it's easy to make a mask clip. You're already doing it: ShowAlpha(clip2).

In other words, simply do:
logoMask = ShowAlpha(clip2)
Then do what I described before, and update the "mask" argument to Overlay to use "logoMask" instead.