Different Colours when using x264 and xvid

[Numer0bis]

Hi everybody

I've been doing some x264 encodes the last days, especially of my tv recordings, to compare xvid and x264. I usually used xvid, because I got more experience in encoding with xvid. What I noticed with x264 that the colours of the picture are a littlebit darker than xvid. Anyone experienced something like this? I used megui with the HQ-Slow profile to encode my mpeg-2 capture from a wintv-pvr 350 (AnalogTV)

The ShotS:

x264:

http://img523.imageshack.us/img523/4830/x264hp2.jpg

Xvid:

http://img264.imageshack.us/img264/335/xvidhb6.jpg

and finally the original source:

http://img513.imageshack.us/img513/5078/sourceuz1.jpg

Greetz

Numer0bis

:thanks:

[Audionut]

IMHO the x264 encode more closely represents the source.

The xvid encode is oversaturated.

[Blue_MiSfit]

Agreed.

[Didée]

Different ways of feeding the source to the encoder (MeGUI for x264 vs. what for XviD?), or decoding related, or ...

In any case, it is more than unlikely that XviD in itself should produce something that's so much off from the input.

Edit - Oh, it's three different frames we're seeing ... so at least the screenshots from the encoded videos probably were done from/during DirectShow-based playback. Hehe.:)

[CruNcher]

i would say the X264 screen is Studio Colors (TV Scale definately it has the "fogy Gama" ;) ) and the Xvid shoot is PC Scale + RGB32 so this is only a decoding difference nothing more.
If you are useing CoreAVC, to get those ffdshow Decoding results on VMR9 you have to select RGB32 as colorspace and the VMR9 Fix this is bad for TV Playback but perfect for Digital Device Playback (Computer Monitor) other AVC Decoders will allways use the Standard VMR9 TV Scale :)

[Numer0bis]

thx for the infos, well the pictures were taken during ds-playback there is a 1,2 frame differnece, but the frames look all the same, xvid was done using gknot and vdub, x264 megui + memcoder ;)

Hmm maybe it's a problem with avc I'll try the ffdshow decoder

[Sharktooth]

It seems to me the colors the AVC encode are actually more accurate than in the xvid one...

[Sagittaire]

It seems to me the colors the AVC encode are actually more accurate than in the xvid one...

IMO it's simply decoder problem ...
Moreover the frame are not the same for source, x264 and xvid ... lol

[Numer0bis]

yeah it seems avc is more accurate, I used ffdshow to decode the xvid stream and now they both look the same from the aspect of colours of course ;). It seems my xvid codec is screwed up. Hmm I just should stick with avc I think, sry for bothering everyone with such a silly problem

@Sagittaire: well the differnce is just 1,2 frames, but that was not the problem