Border flicker problem with picture in picture effect

[Dino]

What resolution are your media/renders?

How are you monitoring the picture?

What is your timeline playback quality set to?
(will only look right in green/green)

[Chris Merillo]

The effects are rendered at 1:1. The footage was captured at DV25 but in this particular part of the sequence, the P-in-P effect is going on top of some After Effects stuff that I imported at 1:1.

I am monitoring the sequence on the composer monitor as well as an external monitor and it is showing on both. And the timeline is set to green/green.

Also, someone on the Avid forum suggested I delete a couple settings files and let the Avid recreate them on reboot in case they were corrupted. So I did that and I also created a new user profile. Neither of those suggestions worked either.

Any other ideas? Thanks for the help.

AXP 5.8.4, OSX 10.4.11, Mac G5 Dual 2.0, QT Pro 7.5.5.

[Michael Hancock]

I assume you’re in an SD, interlaced project? If so, you’re probably seeing an interlace flicker. I have no idea how to get rid of it. Because interlaced shows first the odd fields, then even fields, the borders of your PIP effect flicker. I’ve only really ever gotten around it by doing my resizing in After Effects, which seems to handle scaling a lot better.

Michael

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I’ll be working late.

[Dino]

[Michael Hancock] “If so, you’re probably seeing an interlace flicker.”

I agree on that. Interlaced video hates thin lines or crisp edges.

Sometimes a minor positioning adjustment can make the difference of where the edges lie in terms of hitting the right place in relation to the interlace. Also a slight blur can make a huge difference by providing a little dithering. I would always add a .3 gaussian blur to text and many graphics from photoshop or after effects before trying to make them video (SD). I can’t recall what options you have in the PIP border control.

[Craig Hirshberg]

I would try the above suggestions first, especially adjusting slightly to hit the sweet spot. Sometimes when fine tuning a crop in PIP, I’ve noticed it takes a two to three hits of the arrow key for the adjustment to only move over one pixel (not sure if pixel is right word here). I try to find the middle ground.

I would also try transcoding that DV25 footage to 1:1 (or recapturing via s-video, but try transcode first), then recutting it back under the 1:1 footage you placed on top and render it 1:1. I’ve had so funky things happen when mixing/viewing/compressing DV25 with SD (and mixing any formats for that matter) that I try to avoid it at all costs.

Sometimes you don’t even notice those problems until you actually view the final dvd on a normal television.

Craig