Posted: Thu 20 Apr 2006, 8:32 Post subject: Flicker at scene change
I am curious if you have come across a problem with a flicker on a scene change, only on some set top boxes though, I am having this issue and have tried authoring with dvdlab and adobe encore,the mpeg comes from tmpeg 3.0 express. (settings = 8000 vbr 2pass)
and it only happens at some scene changes or transitions,
has anyone heard of this problem or come across it before?
Joined: 04 Feb 2003 Posts: 583 Location: Lisboa, Portugal
Posted: Fri 21 Apr 2006, 19:34 Post subject:
Do you have "scene change detection" enabled? Have you tried advancing frame by frame to see what the "flicker" actually is? If it looks like one or two "blocky" frames in a row, it's almost certainly due to scene change detection being disabled.
Scene change detection will automatically insert an I-picture when the image changes a lot. Without that, you'll see a lot of compression artifacts that may look like flickering when played at normal speed.
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