MPEG4 and brightness

[rdunzl]

I have a problem with brightness, and I hope someone can enlighten me on this issue, hehe.

When I play downloaded sample avi files, they often have pretty dark colors, and for some reason my favorite players (Media Player 10 and PowerDVD 6) doesn't have any color settings enabled for MPEG4 playback, and it seems that the "playback window" is not affected by the gamma adjustment and othe settings in my video driver settings (which I thought had system wide effect, but I guess not).

The same problem occur with my own encoded avis - they are all darker than the original DVDs, and I can't figure out how to brighten the files when encoding. I've read a lot of stuff on the doom9 site but I haven't found the right info yet. I've only used the xvid codec and avi container until now.

My questions:
1) Is there any mediaplayers with color settings for MPEG4?
2) Is it possible to brighten the colors using Gknot with the xvid codec?

If theres an article about it somewhere on the site, I'd appreciate the link I've missed :-)

[killingspree]

My questions:
1) Is there any mediaplayers with color settings for MPEG4?

yes, bsplayer, for example...
http://www.bsplayer.org/


2) Is it possible to brighten the colors using Gknot with the xvid codec?


In Gknot you can adjust the brightness of the encode manually in your avisynth script file -
with the Tweak() Command
http://www.avisynth.org/Tweak

kr
steVe

[mimungr]

In Windows Media Player, select View\Enhancements\Video Settings. This will display hue, brightness, saturation, and contrast sliders that work with any codec.

[rdunzl]

BSPlayer and WMP :rolleyes: has color settings indeed. And the tweak command works fine :-)

Thanks for the tips.

Only thing about the tweak command is that after my first test I see that changing the brightness alone doesn't make a good result, so I guess that leaves me with some experimenting to do. I think I'll look into frameserving to begin with...

** It seems that the avisynth/frameserving related guides has had a major overhaul most recently. It's nice for newbies like myself that the guides correspond to the actual version of the software you're working with (DGIndex in my case) :-) **