Log in

View Full Version : h264 brightness issue


Telanor
6th December 2010, 22:34
I've tried googling this but all I ever come up with is some bug in quicktime, which I'm pretty sure has nothing to do with this. So heres the problem: All the h264 videos I have used to appear washed out so I tweaked the settings in KMPlayer to fix it. I'm not sure now exactly what setting fixed it. The problem now is that any videos I record with Fraps and encode using x264 come out extra dark. I took several screenshots to show what I mean.

http://www.ruinvalor.com/Telanor/images/Fraps-h264-My-Settings.png
http://www.ruinvalor.com/Telanor/images/Fraps-h264-Original.png
http://www.ruinvalor.com/Telanor/images/Fraps-Raw-MySettings.png
http://www.ruinvalor.com/Telanor/images/Fraps-Raw-Original.png
http://www.ruinvalor.com/Telanor/images/naruto-mysettings.png
http://www.ruinvalor.com/Telanor/images/naruto-original.png

The ones marked with Original are the default KMPlayer settings. I dont think anyone will argue with me that the naruto screenshot looks a lot better with my settings than the original, yet those same settings are making my x264 encodes look too dark. Can anyone help me out with this?

nurbs
6th December 2010, 22:49
If normal videos look washed out it's usually a PC/TV-Range issue. See here: http://forum.doom9.org/showthread.php?t=143689
I assume that the game footage you record with FRAPS will be PC range. You need to tell x264 that by using the --fullrange command on encoding.
If you expand footage that is PC range as if it were TV range the colors will looked washed out.

Telanor
6th December 2010, 23:30
Seems like that was exactly the issue. Problem solved, thanks!