If DGIndex reports my VOB as 100.00% video, does it need to be IVTC'd still?

Vitality · 11th November 2018, 17:51

There's no pulldown flags, but it's an interlaced video:

Code:

Width                                    : 720 pixels
Height                                   : 480 pixels
Display aspect ratio                     : 4:3
Frame rate                               : 29.970 (30000/1001) FPS
Standard                                 : NTSC
Color space                              : YUV
Chroma subsampling                       : 4:2:0
Bit depth                                : 8 bits
Scan type                                : Interlaced
Scan order                               : Top Field First

Not sure to apply IVTC or just use QTGMC/deinterlace?

videoh · 11th November 2018, 19:01

DGIndex does not report video % per se; it reports film %, which really just means how much percentage of the stream has soft 3:2 pulldown. And scan type Interlaced does not necessarily mean the content is interlaced.

The only way to be sure is to step through the fields:

http://rationalqm.us/faq.html#analysis

StainlessS · 8th April 2020, 22:10

Yep well stream content flags/info aint always gospel truth nor even present, sometimes best guess is all that one can do.

Katie Boundary · 19th May 2020, 23:34

It could be film with hard pulldown, or it could be pure 60 distinguishable images per second, or it could be a mixed-framerate edited-on-tape freakshow, or it could be a Lovecraftian eldritch abomination like the early seasons of South Park. The only way to find out is to bob it.

11th November 2018, 17:51	#1 \| Link
Vitality Registered User Join Date: Oct 2018 Posts: 54	If DGIndex reports my VOB as 100.00% video, does it need to be IVTC'd still? There's no pulldown flags, but it's an interlaced video: Code: Width : 720 pixels Height : 480 pixels Display aspect ratio : 4:3 Frame rate : 29.970 (30000/1001) FPS Standard : NTSC Color space : YUV Chroma subsampling : 4:2:0 Bit depth : 8 bits Scan type : Interlaced Scan order : Top Field First Not sure to apply IVTC or just use QTGMC/deinterlace?

8th April 2020, 22:10	#3 \| Link
StainlessS HeartlessS Usurer Join Date: Dec 2009 Location: Over the rainbow Posts: 8,694	Yep well stream content flags/info aint always gospel truth nor even present, sometimes best guess is all that one can do. __________________ I sometimes post sober. StainlessS@MediaFire ::: AND/OR ::: StainlessS@SendSpace "Some infinities are bigger than other infinities", but how many of them are infinitely bigger ???

19th May 2020, 23:34	#4 \| Link
Katie Boundary Registered User Join Date: Jan 2015 Posts: 770	It could be film with hard pulldown, or it could be pure 60 distinguishable images per second, or it could be a mixed-framerate edited-on-tape freakshow, or it could be a Lovecraftian eldritch abomination like the early seasons of South Park. The only way to find out is to bob it. __________________ If I ask "How do I do X?" or "what happens if I do X?", and X is a very bad thing that no one would ever normally do, assume that I already know this, and that I have Katie reasons for asking anyway.

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11th November 2018, 19:01	#2 \| Link
videoh Useful n00b Join Date: Jul 2014 Posts: 1,270	DGIndex does not report video % per se; it reports film %, which really just means how much percentage of the stream has soft 3:2 pulldown. And scan type Interlaced does not necessarily mean the content is interlaced. The only way to be sure is to step through the fields: http://rationalqm.us/faq.html#analysis