Latest post Wed, Jan 7 2015 11:10 PM by vpcmike. 2 replies.
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  • Wed, Jan 7 2015 5:12 PM

    • daktulus
    • Top 150 Contributor
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    White Picture/overexposed at mp4 import. What is this?

    MC 7.03

     

    I try to import an .mp4 file that looks fine played with media player. It starts with a natural fade in (sunrise).

    When I import into a HD-project exactly at 3 seconds the picture doe´nt fade but is suddenly very white.

    Frame 2:24 is very dark, frame 3:00 is very bright and overexposed.

    Waht is this?

    I tried to import as DNxHD 120 and DNxHD 185 with same results.

    i7, Nvidia 860M, 16GB RAM, 500GB SSD, MC 7.03. Dell Precision M90, Core2Duo 2.16Ghz, FX1500, SATA 7200rpm, MC 4.05. Dell650, 2.8Ghz, 3 GB RAM, FX500, 5... [view my complete system specs]
  • Wed, Jan 7 2015 6:09 PM In reply to

    • smrpix
    • Top 75 Contributor
    • Joined on Wed, Sep 5 2012
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    Re: White Picture/overexposed at mp4 import. What is this?

    I would start by examining the original file, mp4 (usually h.264) compression schemes vary widely.  The file may be variable frame rate or have i-frames quite far apart.

    MediaInfo is a good free tool for determining what you have.

  • Wed, Jan 7 2015 11:10 PM In reply to

    • vpcmike
    • Top 50 Contributor
    • Joined on Thu, Oct 13 2005
    • Baltimore, MD
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    Re: White Picture/overexposed at mp4 import. What is this?

    Instead of importing, try linking via AMA and then transcoding.

    System #1 - Mac Pro 12 Core 2.93, 24 GB RAM, 16 TB ISIS 5000 System #2 - Core i7 2600k, Windows 7, 16 GB RAM, Quadro 4000 System #3 - Dell Precision... [view my complete system specs]
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