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REMPEG BLOCKY PICTURE
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dazz
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14. July 2002 @ 04:55 |
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REMPEG WORKS GREAT ON MOST FILMS BUT ON HARRY POTTER AND SUM OTHER FILMS MOSTLY NEW FILMS I AM GETTING A VERY BLOCKY PICTURE
ANYONE GOT ANY ANSWERS
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SSam
Newbie
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4. August 2002 @ 07:30 |
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I have the same problem on some movies that i re-encode (ie ephisode1, eyes wide shut, almost famous)
I'm not sure if this is a problem with rempeg or some movie have a way of causing this blocky-ness.
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neil_sue
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4. August 2002 @ 11:43 |
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I too have the same problem and keep searching the forum for an answer but no one answers someone please help all of us ( including the silent ones )!!!!!
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dazz
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4. August 2002 @ 13:28 |
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it semms there are a few of us having this problem with rempeg2 i have found that all new warner brother titals have this blocky effect,
tmpeg works fine but the quality is not as good
does anyone know of a way around this using rempeg2 i have tried all sorts of settings but still get blocky picture
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SSam
Newbie
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5. August 2002 @ 20:48 |
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anybody know another program to re-encode (or modify) the bit rate of mpeg2 streams?
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Shobbow
Newbie
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6. August 2002 @ 02:20 |
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There are two different reasons for the blocky picture you are getting. The first, ReMPG is a premitive encoder. It can not give good quality picture with bit rates over 3.5MB/S only. Try using TeMPG or better yet CCE. Since you are trying to encode Harry Potter, which is almost three hours, the bit rate you chose is probably around 2.5. Try to split it into two DVDs.
The second reason for the bad picture is that Warner Bros pictures logo is encoded interlaced and the rest of the movie is progressive. For some reason this switch screws up the whole process of encoding. I faced this problem with TeMPG but not ReMPG. To avoid it, use IfoEdit to strip the VOB containg the logo and then encode the rest of the movie.
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neil_sue
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6. August 2002 @ 02:32 |
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yes i too have read it is the warner bro logo causing the problem but most of the time the logo is part of the VOB with the opening credits so it is not so easy to remove that part (cell) I have posted another thread on removal of cells after stripping but no answer yet on this ( you can use smartripper to remove cells but i prefer dvddecrptor any ideas????
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djdrock
Junior Member
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19. September 2002 @ 18:26 |
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I too have had some mixed results with Rempeg. For instance, when trying to encode a particular movie, the first minute is fine, then for the next several minutes, the picture is very distorted, with strange multi-colored artifacts and distortion. Then, the rest of the movie is fine.
So, I decided to first check the .m2v original file, and eliminated that as the culprit. It plays fine. Then, I decided to rip only the first chapter of this disc so I could have a very small file to test. I re-encoded the newly created small file, and got the same results again.
So, I downloaded TMPGEnc, and encoded the same file. I am sad to say, I got the same results using a different encoder. It must have something to do with the source file.
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djdrock
Junior Member
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19. September 2002 @ 18:49 |
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Update...I decided to only encode the second cell of the chapter I extracted, and it encoded fine using Rempeg. Cell 1 of chapter one contains a paramount intro. As mentioned previously in the post by Shabbow, this can fix the problem.
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djdrock
Junior Member
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19. September 2002 @ 19:02 |
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Is there a way to strip specified times of a dvd? For example, say I want only one audio stream, the video, starting at 1:30 (one minute thirty seconds) into the movie?
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Insite
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20. September 2002 @ 10:09 |
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I've just started using Scenarist for this stuff and it is AWESOME. You don't even have to really worry about cells and crap. You can take the WB or Paramount logo and make it a 'chapter' and then not include that chapter when you make it create your VOB's. This is the cool part: If my m2v is too big for one disk (normally transcoded with rempeg), scenarist seems to transcode it (VERY WELL) during the creation of the VOB files. The results so far have been far better than with anything else I have used. I don't bother making all the menus and crap, I just mux my streams together and create chapter breaks.
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maniacal
Newbie
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30. September 2002 @ 16:46 |
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SO where can we get Scenarist? Looks to be a dvd industrial program.
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d0qtrX
Junior Member
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1. October 2002 @ 11:25 |
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I have heard of blockiness problems with rempeg, but I decided to give it a try. With version 152 I had very good success transcoding Fellowship of the Ring down to 62% with very little loss in quality (when viewed on my shitty TV anyway). Another thing I like about rempeg is I can utilize both of my processors to cut encode time down.
Greedo didn't shoot first
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Insite
Suspended due to non-functional email address
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1. October 2002 @ 12:58 |
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As for obtaining Scenarist, you can either buy it (a LITTLE expensive) or you can get it via other means. Having played with it some more, I have realized that it doesn't transcode at all unless you have one of their hardware encoders ($5000, no thanks). I've been using CCE.
For ReMPEG, the blockiness that I mentioned earlier only occured with two movies that I tried with it. ReMPEG lets you multithread the encoding process, but it really doesn't come close to taking full advantage of a two processor system. It only ever uses about 65-68% of my total processing power when used like this. Because of the way ReMPEG encodes, blocky results can occur depending on how they downsample bitrates when they encode the original video. I've found that this blockiness occurs when they drop the bitrate on like every third or every fourth frame instead of a linear downsampling of the entire video stream. ReMPEG will FURTHER cut the bitrate of these low-bitrate video frames and it will get blocky. CCE and ReMPEG on the other hand would recognize that those frames already having low bitrates and would leave them be. This is one of the reasons why results will tend to be better with these other programs.
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A_LOLO
Newbie
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29. October 2002 @ 19:08 |
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I have found that using CCE gives a good m2v file, but when i used ifoedit to create the vob files from this. the picture then becomes jerky. Anyone have any suggestions. THanks
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Insite
Suspended due to non-functional email address
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30. October 2002 @ 04:31 |
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The results you describe are typical. It is generally accepted that you can't directly remux an m2v created with CCE into IFO Edit. Use Maestro, Scenarist or Ulead instead.
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A_LOLO
Newbie
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30. October 2002 @ 16:27 |
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THanks Insite, i will try that
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Donald411
Newbie
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31. October 2002 @ 07:39 |
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I've used ReMPEG2 to copy "Murder by Numbers" and got blocky picture as well. The start was fine, but the actual movie wasn't. I've tried this method from this site http://www.digital-forums.com/dvd2dvdr/intro.htm , and used Nero Burning ROM instead of Gear Pro DVD because it doesn't allow me to burn on my PHillips +RW/+R combo burner and media. TMPGEnc gave me great picture. DVD Maestro may be where my problem is happening, because the sound seems to be ahead of the video by like .2 seconds. How can I correct this? I know I can burn to two discs and allegedly keep exact movie quality. I've not used CCE, but what's the best way to use that (what other software and where can I get ahold of it for nothing)? THANKS.
Donald411
Donald
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Insite
Suspended due to non-functional email address
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31. October 2002 @ 09:04 |
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Use AC3Delay to correct your audio delay time. You can get it from Doom9 or probably here, too. If you feed it an ac3 file that was demuxed with DVD2AVI it will automatically enter the correct delay time. Works like a champ. Now with a DTS track this won't work, but I have yet to see a DTS track that had a delay other than 0ms.
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Insite
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Donald411
Newbie
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31. October 2002 @ 09:21 |
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Hey thanks.
I'll try to get that software. Can you explain how to use it and can I use it with the method I was using?
Donald411
Donald
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Insite
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31. October 2002 @ 11:22 |
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You just open it and load an ac3 file. First you have to have demuxed the audio file. The best way to do this, IMHO, is to use DVD2AVI for a couple of different reasons. Pertaining to audio, DVD2AVI calculates the ac3 delay for you so that you don't have to 'guess' how many milliseconds your track is off (positive or negative). Open DVD2AVI, load your VOB's starting with #1 (not zero). Select demux all tracks under audio options. Under video options, select force film and YUV colorspace. Then under file, select save project and give it a name. The result will be some audio tracks and a d2v track. load the audio (.ac3) that you want into AC3Delay and click write. It will create an AC3 file with no delay time so that you can remux without having to guess what the delay is. Hope this helps.
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Insite
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Donald411
Newbie
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31. October 2002 @ 17:03 |
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Ok. I've downloaded AC3Delay and figured out how to use it. My question may be stupid, BUT..the directions I used said to use Demux and not Demux all tracks. I demuxed all tracks and used the larger of the two AC3 files when I added it with the .m2v in Maestro. Should I have used both AC3 files when draging into Maestro..and is that why I may have heard voice before picture? If I use AC3Delay do I use both ac3 files when dumuxing all tracks or which one do I want to use. If I only demux not all tracks do I still use AC3Delay? I just hate to have to go through this step wasting a lot of time to figure out which way works best? SORRY. I'm wondering if I had only demuxed like it said and then drug it into Maestro if I would still hear voice before picture? THanks!
Donald411
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Insite
Suspended due to non-functional email address
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1. November 2002 @ 02:03 |
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Okay, when you demux all tracks, you wind up with french and spanish and director's comments and stuff. USUALLY the first track that it demuxes (which is also usually the largest) is english AC-3. I know it's an extra step, but you may want to use IFO Edit to strip all the other unwanted streams out first. Then when you demux, there will only be one track. Whether you demux all tracks or just one, you can still use AC3 Delay.
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Donald411
Newbie
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1. November 2002 @ 05:03 |
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Thanks a bunch. I decided last night to go ahead and only demux. Then I took the one .ac3 file and used it in AC3Delay so that I could try it with the original ac3 file and if that didn't work I could try it with the Delay ac3 file. Actually I previewed it on the PC and it looked fine and I burned it and it appears to be right on (the sound and the picture). I think my problem was that I got two ac3 files and I used the larger one instead of following the instruction from http://www.digital-forums.com/dvd2dvdr/intro.htm where I only get one. I think my DVD2AVI already delays the ac3 file. It was 3ms longer than the .m2v file. Oh what version of DVD2AVI do you use? I have 1.77.3, and it looks a little different then the 1.76. I'm really excited about finally burning a great copy DVD that plays on my DVD player. It's like learning to walk or talk for the very first time. Will I have trouble trying to do WarnerBrother movies though? Thanks for everything REALLY!
Donald411
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gryphon
Newbie
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5. November 2002 @ 07:55 |
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How do you exclude cells from REMPEG? I don't see any obvious ways of doing so.
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