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milfisland
milfisland
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AVC Intra 100 P2: Artifacts in picture while playing from timeline

Mar 20, 2013 4:47 AM

[url=http://postimage.org/image/43n6z8dez/full/][img=http://s9.postimage.org/p0jf3wbfz/Artifacts_timeline_cs6.jpg][/url]

[url=http://postimage.org/]upload pic[/url]

 

 

Hi all,

 

I've been getting weird and brief artifacts when playing from the timeline, as (hopefully) can be seen in the image above. It usually happens after I Roll an edit point backwards or forwards. Moreover, when I check the original clip in the source monitor, the same artifact appears at the same point.

 

Restarting Premiere usually fixes this, but it's been happening while I'm working with a client, so I need to figure out what's going on.

 

The files are

AVCIntra100 (100Mbit/Sek) 1080i/25PN (1080 x 1920 = FullHD) 10bit / 4:2:2

 

I'm running Premiere cs6 *v6.03* on an i7 3630qm laptop with 32gb RAM, Nvidia gtx670mx, and 3gb of dedicated video ram

 

Hopefully someone has experienced this problem before (so I don't feel alone!) and has identified the cause.

 

Many thanks.

 


259 Views   4 Replies   Latest reply: Jim Simon, Mar 24, 2013 8:35 AM
 
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  • milfisland
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    1. milfisland,
    Mar 22, 2013 12:38 PM   in reply to milfisland
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    No one? Struggling here...

     
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  • Jim Simon
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    2. Jim Simon,
    Mar 22, 2013 2:21 PM   in reply to milfisland
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    I just don't have any footage to test with.

     
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  • milfisland
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    3. milfisland,
    Mar 24, 2013 3:14 AM   in reply to Jim Simon
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    Thanks Jim, but that's going to be hard to organise for me, as I imagine the problem could only be reproduced in a project that contains a lot of P2 footage. In any case, reproducing the problem will be difficult as the artifacts occur infrequently.

     

    I just hoped that someone had already come across the issue in their own work....perhaps while using a different video format.

    One thing that occurred to me is that it might be due to streaming the files via USB 3, from a decent though unreliable drive (Western Digital MyBook).

     
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  • Jim Simon
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    4. Jim Simon,
    Mar 24, 2013 8:35 AM   in reply to milfisland
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    Not likely.  The only issue a slow drive would produce is less than realtime playback.  And a USB 3 drive should be plenty fast enough.

     

    Still, moving the footage over to an internal is not a bad test to run.

     
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