Flicker on rendering screen capture at DVinfo.net

Go Back   DV Info Net > Windows / PC Post Production Solutions > What Happens in Vegas...

What Happens in Vegas...
...stays in Vegas! This PC-based editing app is a safe bet with these tips.

Thread Tools Search this Thread
Old October 19th, 2010, 04:51 AM   #1
Join Date: Jul 2007
Location: New Zealand
Posts: 1,068
Flicker on rendering screen capture

I took a brief video screenshot using Camstudio2 - avi.

I have just edited it in Vegas and rendered it, and find that it flickers on playback after rendering. When editing it, I didn't notice any flicker.

What could cause this?
Renton Maclachlan is offline   Reply With Quote
Old October 19th, 2010, 10:39 AM   #2
Inner Circle
Join Date: Sep 2003
Location: Portland, Oregon
Posts: 3,136
I suppose there are many possibilities, but I'd immediately suspect a mismatched media / render property at some stage. For example, a conversion to interlaced, or a change of framerate.

As near as I've been able to determine, this sort of project works best when I start at the end and work back to the beginning. That is, determine the final display method, size, and framerate first, then apply that at every step along the way.

I recently did a software demo for a tradeshow display. Determining that the laptop to be used had a 1200x800 display, I decided on 8fps since I was adding some wipe transitions in Vegas. (Many software demos run as low as 4fps)

Therefore, the capture was done at 1200x800x8fps, these were also the project properties in Vegas (progressive), and these were also the render properties. This particular one went out in Windows Media 9 screen codec.

Screen captures are pretty unforgiving of size and framerate changes; this method is based on a single size and framerate from capture to delivery. Vegas is great for this work because it picks up most capture codecs directly without DI, and project properties can be anything you want.
30 years of pro media production. Vegas user since 1.0. Webcaster since 1997. Freelancer since 2000. College instructor since 2001.
Seth Bloombaum is offline   Reply

DV Info Net refers all where-to-buy and where-to-rent questions exclusively to these trusted full line dealers and rental houses...

Professional Video
(800) 833-4801
Portland, OR

Omega Broadcast
(512) 251-7778
Austin, TX

(973) 335-4460
Mountain Lakes, NJ

Abel Cine Tech
(888) 700-4416
N.Y. NY & L.A. CA

(800) 238-8480
Glendale, CA

Precision Camera
(800) 677-1023
Austin, TX

DV Info Net also encourages you to support local businesses and buy from an authorized dealer in your neighborhood.
  You are here: DV Info Net > Windows / PC Post Production Solutions > What Happens in Vegas...

Thread Tools Search this Thread
Search this Thread:

Advanced Search



All times are GMT -6. The time now is 03:43 PM.

DV Info Net -- Real Names, Real People, Real Info!
1998-2015 The Digital Video Information Network