Log in

View Full Version : CCE encoding is fine but a few blurred faces remain?


Chetwood
25th January 2003, 21:25
While I'm waiting on some test results concerning subtitle problems with DVD2SVCD I've been working on my Buffy encoding settings again and so far I seem to be getting fairly good results on VBR x 4 at 2500 kbit max. (rest is used for 2 audio and 2 subtitle streams).

However, what still bugs me is that in several scenes people's faces tend to get blurry for a moment even though there isn't much of a camera movement involved. Comparing these scenes to high action scenes like the intro-credits of Buffy with very fast cuts ameks me wonder what could cause these.

I've uploaded 2 small samples of the same episode

5-12-90-a.avi (3.6 MB) (http://chetwood.netfirms.com/5-12-90-a.avi)
5-12-90-b.avi (6.1 MB) (http://chetwood.netfirms.com/5-12-90-b.avi)

Unfortunately I haven't been able to extract them as mpeg2 from the mpv-file generated by CCE 2.50. Virtualdub did allow me only to extract to avi, still the result is very close to the original so you can still see those blurry effects without the divx codec having evened it out.

So my question: why is it that there are some slow movement scenes that get pixelated?

P.S.

In case you think this rather belongs in the CCE-forum please move it there. I thought it was appropriate here since I'm using it from DVD2SVCD with it's standard settings.

Chetwood
25th January 2003, 21:27
As I've just realized netfirms.com does not allow file downloads larger than 256 KB :( So in case you are really interested to help me out please pm me so I can give you my login data to my account on netfirms and you can ftp it from there.

hoozdapimp
25th January 2003, 23:33
If the scene is very bright, it will require a lot of bitrate even if there is little movement. I have noticed this too with some of my encodes to SVCD. Really bright scenes can be hard to fit into 2500kbits. Luckily my DVD-R has arrived and I no longer have to worry about this :)

You might try to browse the avisynth section for tips on applying some filters if you're stil not satisfied, but I don't think your problems is with DVD2SVCD