IVTC for PAL video that was originally NTSC

[premiumcapture]

I recently purchased a DVD set of a US show that was only released abroad (go figure!). The series was clearly shot on film as far as I can tell, but the DVDs are in PAL format. I am thinking of trying out IVTC, but since its technically in PAL format but was telecined to NTSC, do I need to convert back to NTSC or is there a better and more accurate route?

Thanks

[ndjamena]

Hopefully, your show was recorded in 24p film and then sped up because if it was anything else you're out of luck on a quick fix.

Open the thing in VLC, make sure deinterlacing is turned off, if you see any interlacing lines in the video you've got work to do.

[premiumcapture]

It is definitely interlaced. I have some sample NTSC DVD copies and I played with the IVTC and I am pretty sure between that and the appearance of film grain that it was shot on film. Wasn't sure if there was a fix I could do in a batch as there are almost 100 videos I need to process.

[ndjamena]

There are several options here:

1: it was shot at 24p, then pulldown was applied to convert it to 25i
2: it was shot at 24p, then it was blend converted to 25i
3: it was shot at 29.97i...

Actually it just blows out from there, maybe you should just post a sample for us to look at.

[premiumcapture]

It was shot at 24p (23.976...), pulldown to 29.97i, converted to 25i. I am looking to bring it back to the original framerate.

[ndjamena]

*sigh* how was it converted to 25i, that's the burning question.

[manono]

It was shot at 24p (23.976...), pulldown to 29.97i, converted to 25i. I am looking to bring it back to the original framerate.

Then how about a sample, as ndjamena has already requested? If what you say is correct (and I doubt it is), you had better learn some AviSynth, and fast. 10 seconds of steady movement from the source (not converted to anything else) should be plenty.

[johnmeyer]

If you post a sample, with plenty of movement, and which is simply cut, and not re-rendered, it should be pretty easy to spot what is going on. VLC is not a very good way to understand the problem. You need to put it through AVISynth and do a separatefields() to look at it field by field.

[jagabo]

The most common solution for film at 30i to 25i is a smart bob followed by SRestore.

[premiumcapture]

Sample attached. Maybe I am looking at this wrong, but the show was produced in the US and I have the impression it was done on film, though I have not looked at the frame order to verify.

Thanks for the help!

[jagabo]

That video has been totally destroyed. Throw it out. If you really must use it, leave it like it is.

[premiumcapture]

That video has been totally destroyed. Throw it out. If you really must use it, leave it like it is.

I stuck it through Handbrake just for upload. Are you talking about the frame rate conversion or the PQ?

The show was released in the US, but the complete series was only released abroad. There were individual releases here with five episodes missing. The complete series is on iTunes but they fudged the PQ and deinterlacing to an unacceptable point.

I have attached a sample from the same episode from the NTSC release encoded @ CRF 22 for upload.

[jagabo]

The video (in post #10) was resized as if it was progressive but it contains interlaced frames. It's also encoded progressive to further screw it up. Upload an sample that has not been reencoded. Then we'll see if Handbrake cause those problems or if they're in the source video.

[jagabo]

The sample in post 12 contains interlaced (hard telecined) video that been encoded progressive. Did you make that with Handbrake too?

[premiumcapture]

Both were done in Handbrake, but I am uploading two samples right now. Due to the filesizes being comparatively bigger, it will take a few minutes.

[poisondeathray]

Why don't you upload an unprocessed sample? Open a vob in dgindex, mark in, mark out by pushing the "[" and "]" buttons in the GUI, file=>save project and demux video . Upload the .m2v video

[newpball]

Both were done in Handbrake, but I am uploading two samples right now. Due to the filesizes being comparatively bigger, it will take a few minutes.

They need to be unprocessed otherwise there is no point.

[premiumcapture]

I am currently uploading samples from files made in MakeMKV using MKVMerge

[premiumcapture]

DVDs were transferred by MakeMKV and I used MKVMerge to split. These should be the real deal.

I tried to make the time smaller, but didn't know how, which is why these are so big.

[johnmeyer]

If you re-encode, we can't help. You must use a tool which simply cuts, but leaves all the pixels intact. You only need to upload 5-10 seconds of video, but it needs to contain lots of motion.

[premiumcapture]

If you re-encode, we can't help. You must use a tool which simply cuts, but leaves all the pixels intact. You only need to upload 5-10 seconds of video, but it needs to contain lots of motion.

Please see above two posts

[newpball]

A 10 second mpeg2 video is not over 200 MB. Also I am confused you have a PAL DVD and now you have an NTSC source as well?

poisondeathray showed you how to get an untouched sample:

Why don't you upload an unprocessed sample? Open a vob in dgindex, mark in, mark out by pushing the "[" and "]" buttons in the GUI, file=>save project and demux video . Upload the .m2v video

What is the issue?

[jagabo]

The PAL video in post #19 can be mostly restored to the original film frames with AviSynth:

Mpeg2Source("filename.d2v")
Yadif(mode=1)
SRestore()

The NTSC clip is simple hard telecined film so

Mpeg2Source("filename.d2v")
TFM()
TDecimate()

[premiumcapture]

The PAL video in post #19 can be mostly restored to the original film frames with AviSynth:

Mpeg2Source("filename.d2v")
Yadif(mode=1)
SRestore()

The NTSC clip is simple hard telecined film so

Mpeg2Source("filename.d2v")
TFM()
TDecimate()

Thank you!