• Adobe Premiere Pro

  Problem with Luma and Chroma levels after render using FRAPS

  Posted by Andrew Smith on September 1, 2012 at 9:26 pm

  Hi everyone,

  I’ve been having a problem for about six months that I can never quite figure out, so I really hope someone can help me out.

  I sometimes use FRAPS to record things that I’m trying to demonstrate to friends on my computer, be they in a game or on my desktop. When I try to render out the footage after editing it (I use virtualdub to repackage the fraps files into an avi container w/ a lagarith codec so it plays nice with premiere) The video almost always seems to be messed up. It seems “foggy” and slightly blown out. I think the problem is that the codecs I am using for my final render will use broadcast luma levels of 16-235 instead of the computer levels of 0-255.

  Here are some pretty pictures to help you out:

  YC Waveform Luma before render:

  https://i.imgur.com/nIyRn.png

  YC Waveform Luma After render:

  https://i.imgur.com/oFtyF.png

  YC Waveform Chroma before render:

  https://i.imgur.com/YErpW.png

  YC Waveform Chroma after render:

  https://i.imgur.com/89HZn.png

  YCbCr Parade before render:

  https://i.imgur.com/Xfd9T.png

  YCbCr Parade after render:

  https://i.imgur.com/c7PRM.png

  It’s also ENTIRELY possible that I’m completely on the wrong track, and the problem is something entirely different.

  Thank you for all of your help.

  View post on imgur.com

  Andrew Smith replied 13 years, 11 months ago 1 Member · 0 Replies
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