Problem with Interlaced Video

[snoopy94]

hai All

iam using DVDRebuilder & CCE as encoder........... how to encode VOBs with Interlaced video. coze i am getting pixated video as output..... help plz

thanks in Advance

[guns1inger]

Then you are doing something wrong. Rebuilder/CCE can handle interlaced footage just fine. I am i the middle of doing a boxset of interlaced PAL footage without any problems. Even resizing to half-D1 on the way (it's an old series shot in 16mm, so the softness isn't an issue) and 3 disc and 12 episodes in with no artifacts.

Provide more details - running time of movie, version of Rebuilder and CCE, settings you have changed etc.

[snoopy94]

hai guns1inger

JOHNNY ENGLISH was the film i tried to encode.. it is 3.73GB size & tried to encode it to 1.42GB..... it had 3 VOBs total runtime 1:24:05..... In DVD Rebuilder pro i used the option "Deinterlace with Decomb" but the video was not good (some part of the video was excellent but other parts was opposite) then i tried the other option in DVD Rebuilder ie "Disable Interlaced" => "Apply to All"... the output was good compared to the above but was not that good..... still problems ....... i encoded other videos 16BLOCKS 3.15GB to 1.42GB and the output was excellent... then this happend PLZ REPLY THANKS IN ADVANCE

DVD REBUILDER 1.09.3
CCE 2.70.02.9

VIDEO INFO
========
General
Complete name : F:\Johnny English\VIDEO_TS\VTS_01_3.VOB
File size : 1024 MiB
Format : MPEG 2 multiplexer

Video #0
Codec : MPEG Video 2
Bit rate : 8000 KBps
BitRate/Mode : CBR
Width : 720
Height : 480
Aspect ratio : 16/9
Frame rate : 29.97
Bits/(Pixel*Frame) : 0.772
Delay : 2752596

Audio #0
Codec : AC3
Bit rate : 448 KBps
BitRate/Mode : CBR
Channels : 5.1 channels
Channel coupling : L, R, C, SL, SR, Subwoofer
Sampling rate : 48 KHz
Delay : 2752312
Video0 delay : -284

Audio #1
Codec : AC3
Bit rate : 192 KBps
BitRate/Mode : CBR
Channels : 2 channels
Channel coupling : L, R
Sampling rate : 48 KHz
Delay : 2752344
Video0 delay : -252

[guns1inger]

Why are you deinterlacing ? Deinterlacing usually results in reduced image quality, as you are experiencing. In general, if yiou are working with interlaced source and going to DVD, there is little to be gained, and much to be lost by deinterlacing.

Can you use g-spot 2.52beta and post a screen shot to confirm that it is 29.970 ? g-spot will tell you the actual framerate, as well as the display framerate. I suspect that you are only seeing the latter at the moment, and the source is already progressive.

That said, between deinterlacing and reducing the bitrate to a very low level, you can only expect to see artifacts and low quality image.

[snoopy94]

hai guns1inger

thank for reply... i used DGIndex to find whether the video is interlaced or not.. it say interlaced (screenshots below).. in gspot it say like Pics/sec = 29.970 , Frms/sec = 29.970 , Flds/sec 59.939..... what i have to do get good quality video as output... for the required 1.40GB... video length approx 1:24:05......... it says NTSC... help plz


thanks in advance

dgindex.jpg

[manono]

Johnny English is a movie, and the true framerate is 23.976fps, but it's been encoded as already telecined and interlaced 29.97fps. The screenshots you posted show only how it was encoded, and not what the source is like. There's no way to fix it using DVD-RB. You'd have to do it manually using an AviSynth script with IVTC applied. Both of the options you tested in DVD-RB are the wrong things to use. Why are you trying to reduce movies to less than 1.5 GB anyway? I'd bet dollars to donuts that both of the DVDs you mentioned are bootlegs created by idiots.

[snoopy94]

hai manono

is there any way i can find out the true frame rate of the film (any software for that).......& about the source to find out how the source is like........please will show me some AviSynth script for these kind of videos.... i am kind of a beginer to this plz tell me what is "AviSynth script with IVTC applied"............ actually I had a DVD-R with film in it most the DVD is not full.. some of them had around 2GB of free some had 1.5 GB of them..... so tried DVD RB for re encoding 16 BLOCKS film worked for me i compressed it to 1.42GB from 3.25GB & the video was very good same as the orginal one..... i was impressed,,...... i tried some other videos to that was to excellent... then this happened....... other videos were PAL ,,, Progressive ,,,,etc not interlaced+ 29.970+NTSC ......................... waiting for reply thanks in advance

[manono]

If it were really interlaced, then every single frame would be interlaced. It would have been created using 30fps interlaced video cameras. Movies are shot on 24fps film. Sometimes these 24fps movies are telecined prior to encoding. Not the R1 DVDs of major movies, but some lousy bootlegs such as you have. The studios released these movies (16 Blocks for sure, don't know about Johnny English as I haven't seen the DVD, but probably it as well) encoded progressively at 23.976fps, with pulldown applied to output 29.97fps. But like I said, sometimes they are telecined prior to encoding. The way you check is to open a vob in VDub(Mod) and scroll to a place with movement/action. Advance a frame at a time. Rather than it showiing every frame as being interlaced, instead you'll see 3 clean progressive frames and 2 interlaced frames in every 5 frame sequence. 3-2-3-2. IVTC (Inverse Telecine) can be used to restore the progressive frames at 23.976fps. This will allow better encoding efficiency and a better looking backup.

Maybe the 16 blocks you had was encoded progressively. I don't know, but you seemed pleased with your DVD-RB result. From the way you describe it, I don't think Johnny English was encoded progressively on the DVD you have. Your first step is to examine the frames to see if it has that 3:2 pattern I described, or if all the frames are progressive, or if maybe something else is going on, such as frame blending.

If it does have that progressive/interlaced 3/2 pattern, then you have to learn to set up an AviSynth script file to send to your encoder for progressive encoding at 23.976fps. Such a script might look something like this:

LoadPlugin("C:\Path\To\DGDecode.dll")
LoadPlugin("C:\Path\To\TIVTC.dll")
MPEG2Source("C:\Path\To\Movie.d2v")
TFM()
TDecimate()

I won't teach you to use AviSynth and then to encode with it as I can see no end to it. Read up at www.avisynth.org and teach yourself. Or you can make a D2V project file using DGIndex, open it in FitCD, and it will make the script automatically. What I really recommend is just burning your movie to a DVDR without further compression. Much easier and better. Good luck.

[snoopy94]

hai manono



thanks for reply ...... let me check the instructions you told ....... hope so i'll find it right.... will be back with reults........................ THANKS A LOTTTT