QuEnc = Green Blocks in fast motion

[petermg]

I *LOVE* the quality that QuEnc gives me as far as playback on my PC... when I author a DVD using the MPEG2 streams QuEnc creates, at times during the playback on the standalone DVD player, during zoomed in fast motion scenes, where the camera is panning and everything is blurred because of the motion, I will get green blocks on part of the screen. It seems to happen pretty consistently, but only on these types of scenes, which isn't too frequent.

Anyone else notice this?

Is there a workaround to this or is this a known "bug"?

Thanks in advance for any feedback.

[Nic]

Believe it or not, it's a rare weird thing that only occured to me recently. And to others at the same time.

Will make a release very soon that will fix this problem.

Thanks for the feedback,
-Nic

ps
On another, better, MPEG-2 Decoder/DVDPlayer it will look just fine.

[Commander XJL]

I have this problem too, switch to HC Encoder, it does a great job. Don't blame the persons player, i have used more encoders now than I can keep track of, and none had problems like this on any of my 4 different players. This is an QuEnc problem alone

[hutch1711]

Originally posted by Commander XJL
I have this problem too, switch to HC Encoder, it does a great job. Don't blame the persons player, i have used more encoders now than I can keep track of, and none had problems like this on any of my 4 different players. This is an QuEnc problem alone
And Nic said it would be fixed soon! Why Nic, JDobbs, Sapstar, and the others who contribute so much to this community bother to do so is beyond me. The constant whining that goes on in these forums when the programs don't perform 100% blows my mind. The programs these individuals provide are for testing and are constantly being refined based on constructive feedback from the community. I for one thank them wholeheartly for their efforts.

[dragongodz]

Don't blame the persons player,
so if its happening on some players and not others so not everyone will encounter/see this problem that shouldnt be mentioned ? riiiiight.

actually can you guys PLEASE post your settings and if you tried disabling anything etc. that would be more useful than "i get green blocks" to see if there is anything special causing it or just a general problem/bug. atleast 1 people in this thread should know that. ;)

Nic - is are you seeing this with the new RC aswell ? are these muxxed with QuEnc or other ?

[Commander XJL]

So it's whining to report a problem? So it would be better if we all just didn't say anything and just stop using it? I'd be glad to try this program again once the bugs are gone, but if no one says anything they won't be gone. This is not the fault of the player, if it were other encoders would do the same thing. When this program works right I'll be the first to thank the creator, but as long as I get nothing from it but a waste of my time I'll wait. As far as settings, I get it with 2 pass, single pass, and with Trelis on and off. I've done my part by spending a lot of hours testing this program with all these settings so this info can lead to it being fixed. Suck ups that offer no feedback to the creator except "it's a great program" when it's not a great program yet are what I'm tired of, because their not being honest or haven't put in the time to test it, so they should keep quite I guess

[Nic]

@Commander: The problem is not a QuEnc alone problem. Any encoder using libavcodec (FreeEnc, NuEnc, etc) right now will have the problem. It is also a problem with the way the MPEG-2 decoder is implemented. Hence, the files play perfectly on a PC and on most (good) DVD players.

However, it is a problem that is easily solved and accounted for, just by using "safe" numbers for things. Which is what I assume other encoders are doing (and will be what I do in the next version).

Do you know how many hours it took to track the problem down? QuEnc is the only real true opensource MPEG-2/1 encoder that is getting used for DVD backup on Windows right now, I don't ask for donations or anything else. All I ask for is a bit or courtesy.

Thanks for the feedback, but you could be more polite. Also saying I'm wrong with no evidence to back it up, isn't particularly nice.

-Nic

[dragongodz]

So it's whining to report a problem?
the multiple i's i used should have told you it was sarcasm. reporting a problem is good, providing as much information as possible is even better, such as if it happens with particular players etc. you want to dismiss that piece of information since you dont have a player it doent happen on. thats where you are wrong, all information is important.

When this program works right I'll be the first to thank the creator, but as long as I get nothing from it but a waste of my time I'll wait
in other words you are the type who doesnt have a clue how to encourage people to make these FREE programs better. and people wonder why programmers think they are wasting THEIR time.

Suck ups that offer no feedback to the creator except "it's a great program" when it's not a great program yet are what I'm tired of, because their not being honest or haven't put in the time to test it, so they should keep quite I guess
was that meant to be aimed at me ? if so you really dont have a clue. yes it says QuEnc by Nic in the title bar as he is the person that started all this and has done 99.9% of the work on it. there are some of us that have helped a little with things that you obviously know nothing about.

[Jackzeripper]

Does the auto max BR might not be the problem ? (example : VBR DVD with 8000 kbps will give a 24000 kbps max bitrate, a bit high for DVD players on very fast motion scenes no ?)

:confused:

[Nic]

@Jack: That would be a problem, but it isn't the problem in this case. :)

[Commander XJL]

dragongodz, my comments weren't directed at you at all. But for anyone to blame the dvd player is a cop out. All 4 of my dvd players are good name brand dvd players that will play anything. If an encoder is doing it's job and the dvd is authored right the video playback should be ok on just about any dvd player. Let hollywood start putting out commercial DVD's that only play on some dvd players and then when hollywod blames the dvd players, well, see how well that flies. A bug in QuEnc is causing this problem not the dvd player. I get green blocks off and on all through a video, it doesn't matter if it's fast motion or not. This is the same thing as when people by these crap generic disks that don't play back right. You don't blame the dvd player, you blame the cheap crap disks. You don't blame the dvd player for these colored blocks, you don't blame the burning software, you blame QuEnc since it's the only variable that causes this. I've used every encoder around, burned with every burning program, and I never had this problem until QuEnc entered the picture. I've made donations many times for software that I get use out of, and will do the same with QuEnc once this bug is fixed and I start using it. I've spent about 50 hours of my time testing this, there is definitley a problem with QuEnc that needs to be fixed. But for now for me and it sounds like many others QuEnc is unusable. On the tests I did QuEnc takes about 10 percent longer than HC Encoder, and other than the colored blocks picture quality is the same, so for now my vote goes to HC Encoder. But don't doubt that I appreciate these guys working on these programs, without them we'd have nothing. But problems have to be reported or they don't get fixed, and you have to put the blame where it lies. The next version of QuEnc may beat HC Encoder, which would be great. But for now even if you have a player that doesn't show the colored blocks, you should still stay away from QuENC for now, because you may author a ton of disks with it, then someday when you buy a different dvd player, you may have a ton of disks that no longer play right. So there's a lot to consider.

[Nic]

50 hours?! ;)

A good MPEG-2 decoder plays the files fine doesn't it? Your computer plays it fine doesn't it? Stradis, Sigma & optibase professional decoder cards play the file fine. QuEnc isn't actually doing anything wrong. It just needs to pick more reasonable/safe settings to make badly implemented decoders play.

Anyway the point is moot now. Your troubles will be fixed with the next version QuEnc. So we can cease arguing.

BTW: Try to split your text into paragraphs, it makes easier reading.

Thanks :)

-Nic

[petermg]

@ Commander XJL

I tried HC Encoder, and although I didn't play it back on my DVD player, I didn't notice any visual quality improvement over QuEnc on my PC.

I like to see how well encoders handle interlaced video at around 4MBPS average bitrate with a max of 8 or 9 MBPS. I compare to the results of CCE with the filter disabled. So far QuEnc is the only encoder that comes close to the quality of CCE that I have noticed, at higher bitrates (sometimes I can't tell the difference). At 4MBPS, CCE is still better, but not by much. I am rooting for QuEnc! :) Thanks NIC!

[Commander XJL]

once duel layer dvdr's get cheaper we won't need any of these encoders, good or bad. Thats what I'm looking foward to. When will the new version of QuEnc be out?

[Mug Funky]

@ commander xjl:

i suspect with dual layer DVDs getting cheaper, people will be putting 2 movies to a disc :)

then there's things like home-shot footage, TV caps, re-authoring (when i get time i'm going to re-author and completely re-encode my "family guy" DVDs because they are horrible but possibly salvagable. i will need an mpeg-2 encoder for this obviously...)

[Fishman0919]

Originally posted by Commander XJL
once duel layer dvdr's get cheaper we won't need any of these encoders, good or bad. Thats what I'm looking foward to. When will the new version of QuEnc be out?

Dual layer disc will probably not get real cheap because of Blue-ray and HD DVD (maybe soon to be only one format) coming at the end of this year... most places you read are saying that DVD+/-R DL are just a quick stepping stone for whats to come and manufacturers are more concerned with that(Blue-Ray, HD DVD or 1 unified format) then dvd+/-r dl's.

Yes, 8.5g per disc is nice (I put the Star Wars trilogy on one disc)but Sony is working on a 100g 4 layer Blue-Ray disc and Toshiba just announced 3 layered HD DVDs offering 45 GB capacity.... Link (http://www.toshiba.co.jp/about/press/2005_05/pr1002.htm)