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importing AVI problem
Hello,
I have Adobe Premiere Pro 2.0
and I import AVI file, but in PP it appears differently. To be more precise,
video shows how laser writes white letters on the black paper. But when imported to PP
some of the letters disappear and appear in the next frames.What might cause such a problem?
Thank you
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1 Reply
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Just a wild guess but I think perhaps the AVI file is recorded with a compression that, when viewed frame by frame in Premiere Pro, results in only parts of the image being displayed.
AVI is a file format, but it can come compressed using many different codecs. Some of these reduce the size of the file by storing only the information that changes from frame to frame. In your case, only the parts of the letter that are being “written” change, while the background and previously written parts are the same. So the codec records a full frame and plays that back, and then plays back the pixels that change over it. This allows for an illusion of faster/smoother playback on the computer or over the internet, but it doesn’t preserve a full frame of the image for editing.
I have seen this kind of artifacting produced when something like a DVD Ripping software is used to construct and AVI, because on the DVD the images are stored as described above, with full frames at routine intervals and partial frames used between. If the RIP software is used incorrectly, or simply doesn’t get the frame sequences right, then the completed AVI comes in with visual “gaps” like you are describing.
Larry S. Evans II
Executive Producer
Digital I Productions
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