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#31841 | Link | |
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What Alternate Output preset did you use? Also, which encoder did you have selected (in the SETTINGS/ENCODER menu)? Last edited by jdobbs; 10th July 2024 at 21:40. |
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#31843 | Link | |
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Posts: 254
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- Mode: MKV Container, 1920x1080, Intact Audio And I tried Nvidia and x264 both |
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#31844 | Link |
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Join Date: Aug 2005
Posts: 1,268
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I ripped a DVD using MakeMKV and it had the usual resulting 'combing', etc... I'm running it through BDRB and I set it to use IVTC for sources that need it. But, I'm checking the resulting .264 file and also the AVS file, and it looks like BDRB is 'Decombing' using 'Blend' Now, shouldn't it be using IVTC AVS script instead? Do I need to go and add the AVS script into BDRB? If I set it to use IVTC and instead it is Decombing using blending, is that right?
Thanks! ***EDIT Okay, here is what BDRB chose for the encode, this is with the 'Deinterlace' in the settings checked: #Created by BD Rebuilder - v0.62.01 DirectshowSource("E:\TSMUXER\IMPORTS\A1_T00\BDMV\STREAM\00000.m2ts", fps=29.97, framecount=171698, audio=false) MSharpen() ConvertToYV12() LoadPlugin("F:\EXECUTABLES\BD-RBV06201\BD_Rebuilder\tools\decomb521.dll") FieldDeinterlace(blend=true) ConvertToYV12().AssumeFPS(30000,1001) Now, I ran it again and UNchecked the 'Deinterlace' and added the IVTC AVS code, and this is what it is doing now: #Created by BD Rebuilder - v0.62.01 DirectshowSource("E:\TSMUXER\IMPORTS\A1_T00\BDMV\STREAM\00000.m2ts", fps=29.97, framecount=171698, audio=false) TFM().TDecimate() MSharpen() BilinearResize(720,480) ConvertToYV12().AssumeFPS(30000,1001) Just doing some reading, that 'Blending' didn't sound right, so I'm trying it with just the straight IVTC, although I DO have that checked in the settings, but BDRB did NOT use it and did the Deinterlace/Blend thing instead. So, I'm a bit confused. The first encode done automatically by BDRB did get rid of the combing, but some of the motion looked a tad choppy at times. It is a simple, basic NTSC DVD, nothing fancy. Any thoughts...? Thanks! ***EDIT 2 I checked the resulting encode using the IVTC and so far I think it looks a LOT better. I wonder why BDRB did not choose to use that instead of the Deinterlace/Blend...? ***EDIT 3 (what would I do without edits... ![]() Anyway, yeah the second encode with the 2nd settings above looks fantastic! Heh, the only thing was the video was rendered at 29.xx, so it was sped up and not in sync with the audio. I just ran the components in the Workfiles through MKVMerge and set the frame rate of the video to 23.xx since I suppose that when you use IVTC the result is progressive. Yep... when I remuxed it with the video set at the right frame rate it turned out great! Again, am I missing something...? Why doesn't BDRB automatically set it the 2nd way? And, I'm kind of thinking that if it is a run of the mill US DVD, I bet 95% of the time I should just use IVTC, right? I wonder why BDRB chooses to 'Blend' it, it sure doesn't look as good. Last edited by Lathe; 12th July 2024 at 06:22. |
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#31845 | Link |
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The only time it will use "blend" is if you have this in your INI file:
DEINTERLACER_BLEND=1 From HIDDENOPTS.TXT: Code:
DEINTERLACER_BLEND=n n = 0/1 - 0=No field blending during deinterlacing (default), 1=Blending during deinterlacing Code:
DEINTERLACER_TYPE=n n = 1-5 - 1=DECOMB,2=None,3=SmoothDeinterlace (default),4=Progressive (fake),5=3+1 Last edited by jdobbs; 12th July 2024 at 13:45. |
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#31846 | Link |
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Join Date: Nov 2019
Posts: 2
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Bitstream Exception & Dolby Vision
Hello, i would like to report a bug thats been present in BD-RB for a couple of years now
When dolby vision support was first added to BD-RB there was an initial release where the dolby vision track was given the wrong stream ID, this bug was promplty fixed by the author BUT was never fixed in the internal routine that handles the correction of bitstream exception errors returned by tsmuxer, resulting in the m2ts file where bitstream exception occured being unplayable with dolby vision enabled. If i then demux BD-RB output the dolby vision track on an affected m2ts file where bitstream exception occured demuxes as track_4114 rather than track_4117. Im hoping this is just a code correction for the author. Thankyou |
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#31847 | Link | |
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#31848 | Link | |
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#31850 | Link | |
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Join Date: Aug 2005
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***EDIT I guess from now on if I am doing a normal US DVD, I'll just add this to the AVS code: TFM().TDecimate() It turned out really good when I did that, except I had to mux it with MKVMerge and change the frame rate to 23.xx, THEN it looked great! ![]() Last edited by Lathe; 14th July 2024 at 00:14. |
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#31852 | Link | |
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Location: Wisconsin
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WAG on my part. |
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#31853 | Link | |
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I THINK from what I read that unless it is an unusual circumstance, basically all 'usual' US DVDs need that, so I honestly don't know... |
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#31854 | Link |
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Join Date: May 2007
Location: Wisconsin
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If it is a movie, or scripted U.S. TV show, then yes. That is because they are all produced at 23.976/24 fps. 576 DVDs will have 25 fps source material. 25 fps source material that is standards converted to 23.976 will not be able to simply get back to 25 fps.
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#31855 | Link | |
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But it isn't always that easy. There are two common ways that authors adjust a 23.976/24 fps source to make it 29.97. Telecining is the most common. It's pretty easy, because the source is really 23.976, and when a player sees the flag it creates the additional frame (1 in 4) needed to make it 29.97. It is handled easily by IVTC, which just ignores the flag. But sometimes (you will see this much more often on imports) the author just repeats one frame out of every five. In that case you have to use a Decimate routine to find the repeated frame (by its similarity to the frame before it) and remove it. Sometimes, though, especially when someone has reencoded a telecined source, you'll find one that is very difficult to fix. A telecined source has the added contrived frame (from the frame server/player) that is made up of two sets of scan lines (even and odd) -- one set is from the frame before it, and the other from the frame following it. When it is reencoded it is often done with blending to make the added frame look less contrived. The telecine flag isn't there (because the contrived frame was reencoded). When that happens it is almost impossible to make a clear 23.976 output from it and it's better just to keep it 29.97. Also, sometimes when a telecined source is reencoded, the player or frame server inserts the contrived frame and it is reencoded as well, but this time without blending. In that case (without blending) the telecined frame can to be recognized (by the notable differences between the even and odd scan lines). That usually works out -- but can sometimes show a bit of a "skip" every now and then when the IVTC routine couldn't determine correctly which frame was inserted (in a group of five), and removes the wrong frame. To make it even worse. Sometimes you'll find sources (even occasionally on professionally authored originals) that mix IVTC (flagged) video with video that includes contrived frames. That's why some IVTC programs have to scan the source frame-by-frame before doing the conversion so it knows where to change mechanisms during conversion. I guess the point is that it can sometimes be very complicated. But luckily, BD-RB does most of the analysis for you. The hidden options are mostly there for the times when you run into odd sources and want to override its decisions. But it is important that you remember to disable those hidden options before you start another job -- because they might not be appropriate for it. [Note] All of this because of engineering decisions that 30fps (29.97) would make the clearest picture on a television (because of the short persistence of phospher glow when hit by an electron beam in a picture tube) -- while motion pictures were authored at 24fps. That's also why television pictures were divided into two sets (even and odd) of scan lines, so as one faded the other was created next to it and it wasn't as noticable. The scary part is that I'm old enough to remember when these things were happening. Last edited by jdobbs; 18th July 2024 at 20:51. |
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#31856 | Link |
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Join Date: Apr 2021
Posts: 54
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I have experimented with resampling the frame rate on telecine'd material to 23.976. How successful that is depends on the how much editing AFTER conversion to 29.97 was done; in other words, whether the extra frames are uniformly spaced throughout. Where they are, it works, although some trial and error may be needed to get the first frame right (i.e. so that the skipped frame is always the extra one).
But where post editing took place, I have found it necessary to do the same thing multiple times, each with a start point one frame further in from the start. And then inspect each outout and select the parts that are right and edit them back together. Long job. |
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#31857 | Link | |
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Join Date: Oct 2010
Posts: 254
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Hello, why Bdrebuilder do this? why convert the DTS to Ac3? I mean I had to use another tool because for some reazon rebuilder does that?
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#31859 | Link | |
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#31860 | Link | |
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Join Date: Aug 2005
Posts: 1,268
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And hey... even though you are aging rapidly (as evidenced sadly by your inability to determine Lossless audio) you are doing a right Bang Up job here Sir! |
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