Help De-interlacing DVD correctly and fixing aspect ratio

Hi I have a DVD which i want to deinterlace correctly as possible and convert the 25FPS to the original FPS. I also like to fix the aspect ratio as DVD is in 4x3 and image is stretched. Also like to to improve on the picture quality.

Can anyone please take a look and help. I've started a script but I need help on it as im still learning the basics in avisynth. There is a duplicate frame every 22nd frame.

here is my script so far:

Code:

a = LWlibavAudioSource("G:\future projects\Dance of the Drunken Mantis proejct\Demux files\VTS_01_1 T80 2_0ch 192Kbps DELAY 0ms.ac3") # get audio (decompressed to PCM) v = Mpeg2Source("G:\future projects\Dance of the Drunken Mantis proejct\Demux files\VTS_01_1.d2v", Info=3) # get video AudioDub(v,a) TFM() TDecimate(cycle=22, cycleR=1) ColorMatrix(mode="rec.601->rec.709") Crop(10, 0, -8, -0, align=false) Spline36Resize(720, 282)

here is the DVD source:https://www.swisstransfer.com/d/4c7a532c-8476-493e-adb4-aa24b0870549

I opened the VOB with LWLibavVideoSource and LWLibavVideoSource.

There seems to be only three patches of interlacing at approx 5sec, 23sec and 50sec.

I did a straight TFM on it and found only one duplicate, at frame 1194.

TFM gave a frame rate of 25fps, so I just applied AssumeFPS(24, true). "True" allegedly keeps the audio in sync (which appears to be out by 5 frames [audio delayed] in the source VOB).

Re colours, my understanding is that 709 is only for frame heights of 720 or more ie HD.

It looks closest to 2.2:1 to me, or maybe a bit wider; 2.39:1 looks OK too.

I was just about to ask about that...

Thank you everyone for your help.
@Sharc, So i have changed to 704x264 as suggested. Below is a frame from same DVD of the moon in the sky with 704x264. Would you say it looks okay?

[Attachment 91509 - Click to enlarge]

Assuming that moon is round, it's 2.39:1.

2.2:1

[Attachment 91512 - Click to enlarge]

2.39:1

[Attachment 91513 - Click to enlarge]

2.55:1

[Attachment 91514 - Click to enlarge]

2.66:1

[Attachment 91515 - Click to enlarge]

How about the colour space?

It also needs denoising; a light touch of Temporaldegrain2 and possibly then a bit of sharpening would smarten it up a bit.

Originally Posted by Sharc

^^^^ The moon looks horizontally stretched. What would the DAR become if you resize it to circular shape?
Do you watch the 704x264 in square pixels or does the player stretch it anamorphic acc. DVD PAR 16/15?

on my plex its normally stretches anamorphic when i watch them. that moon image was saved from AVSpmod.

Originally Posted by Alwyn

Assuming that moon is round, it's 2.39:1.

for 2.39.1 Ive changed to Spline36Resize(704, 294). Is this correct?

2.39:1

[Attachment 91513 - Click to enlarge]


How about the colour space?

I've used SMDegrain & LSFmod()

here is updated script:

Code:

a = LWlibavAudioSource("G:\future projects\Dance of the Drunken Mantis proejct\Demux files\VTS_01_1 T80 2_0ch 192Kbps DELAY 0ms.ac3") # get audio (decompressed to PCM) v = Mpeg2Source("G:\future projects\Dance of the Drunken Mantis proejct\Demux files\VTS_01_1.d2v", Info=3) # get video AudioDub(v,a) telecide(back=1,guide=2,post=0) Decimate(cycle=25) ColorMatrix(mode="rec.601->rec.709") Crop(10, 2, -8, -0, align=false) Spline36Resize(704, 294) SMDegrain(tr=2,thSAD=300,contrasharp=true,refinemotion=true,lsb=true) LSFmod()

please let me know if anything needs changing to improve it. many thnanks.

Thanks Sharc.

I've done a export using my script and there seems to be some frame blending issue ( interlace maybe) not sure what it is.
Here is a screenshot:

[Attachment 91518 - Click to enlarge]

Here is short sample of script export file too:
https://www.swisstransfer.com/d/c2093a4f-fc2c-4ace-abf2-252c98d48f0f

Can this be fixed ?

Upload the section of the original source so someone may take a look. Your encoded .mp4 file doesn't tell much.

Also I noticed another issue with my script, it seems frames are being removed. see video:
https://www.swisstransfer.com/d/914d02d9-6d31-436a-a11b-a646d0a802e8

between frame 140 and 141, don't look smooth. what could be the issue anyone have any idea ?

this is my script:

Code:

a = LWlibavAudioSource("G:\future projects\Dance of the Drunken Mantis proejct\Demux files\VTS_01_1 T80 2_0ch 192Kbps DELAY 0ms.ac3") # get audio (decompressed to PCM) v = Mpeg2Source("G:\future projects\Dance of the Drunken Mantis proejct\Demux files\VTS_01_1.d2v", Info=3) # get video AudioDub(v,a) telecide(back=1,guide=2,post=0) Decimate(cycle=25) Crop(10, 2, -8, -0, align=false) Spline36Resize(704, 294) SMDegrain(tr=2,thSAD=300,contrasharp=true,refinemotion=true,lsb=true) LSFmod()

This is original DVD source for that part of scene if it helps anyone:
https://www.swisstransfer.com/d/43de94b4-a583-4453-a706-d7ba93370878

Originally Posted by Sharc

Upload the section of the original source so someone may take a look. Your encoded .mp4 file doesn't tell much.

Here it is:
https://www.swisstransfer.com/d/ff75dd12-0c88-4e38-9ae7-2c2629f0b3df

Originally Posted by Sharc

or change the order

Code:

LWLibavVideoSource("VTS_01_1.VOB") assumeTFF() Telecide(back=1,guide=2,post=0).Decimate(cycle=25) bob().srestore(frate=24) #removes the ghosts

Yeah that works for the ghosting, much appreciated. Thanks Sharc.

I still have the issue with odd frames being removed as mentioned in #18. Any work around that please ?

Hi Sharc, yeah my DVD is an original commercial release by a UK Label and its very common in these old kung fu films to be transferred incorrectly as you see here.

I've tried Selur's 'ContinuityFixer' and that was also eating up good frames too. I've tried other methods yesterday from reading up on google but no luck. From what i read it seems you cant use both srestore and Decimate as both remove frames.

Originally Posted by Selur

ContinuityFixer does not eat frames,... it's one of the modes of EdgeFixer which I only there to 'fix' the flickering bottom edge,....

Oh I see. From its name I concluded it might be some sort of a 'temporal sequence interpolator' or similar

Originally Posted by Selur

ContinuityFixer does not eat frames,... it's one of the modes of EdgeFixer which I only there to 'fix' the flickering bottom edge,....

Sorry i meant the script you suggested was eating good frames aswel.

update: Everything I tried here was eating up good frames so I went with a different option and kept all frames from the original source and slowed movie to 23.976 fps.

I used this script:

Code:

v = Mpeg2Source("G:\future projects\Dance of the Drunken Mantis proejct\Demux files\VTS_01_1.d2v", Info=3) # get video a = LWlibavAudioSource("G:\future projects\Dance of the Drunken Mantis proejct\Demux files\VTS_01_1 T80 2_0ch 192Kbps DELAY 0ms.ac3") # get audio (decompressed to PCM) AudioDub(v, a) Crop(10, 2, -8, -0, align=false) ContinuityFixer(bottom=3, radius=2) assumeTFF() TFM(order=1) QTGMC(Preset="Slower", InputType=1, TR2=0, EzDenoise=0, SubPel=1, NoiseProcess=2, GrainRestore=0.4) DeHalo_alpha(rx=1.5, ry=1.5, darkstr=1.0, brightstr=1.0) LSFmod(defaults="slow", strength=60, overshoot=1, soft=20) AssumeFPS(24000, 1001, sync_audio=true) Spline36Resize(704, 284) TimeStretch(pitch=100.0 * 25.0 / 23.976)

It removes ghosting from some scenes but not all of them.

this script by Sharc using SRestore, fixed ghosting but issue with good frames being removed:

Code:

a = LWlibavAudioSource("G:\future projects\Dance of the Drunken Mantis proejct\Demux files\VTS_01_1 T80 2_0ch 192Kbps DELAY 0ms.ac3") # get audio (decompressed to PCM) v = Mpeg2Source("G:\future projects\Dance of the Drunken Mantis proejct\Demux files\VTS_01_1.d2v", Info=3) # get video AudioDub(v,a) assumeTFF() bob().srestore(frate=25) #removes the ghosts Telecide(back=1,guide=2,post=0).Decimate(cycle=25) Crop(10, 2, -8, -0, align=false) Spline36Resize(704, 294)

Is there a way I can use Sharc's script using SRestore and have the video slowed down like I have and keep all frames without any good frames being eaten up ?

It is basically a progressive video. I would forget trying to deal with it at a field level and instead would simply run this old script of mine:

Automatically fix dups followed (eventually) by drops