Who can help solving this footage

Cary Knoop · 10th February 2021, 03:28

The source is interlaced, but there is also blending and it appears that the chroma and luma are sometimes not synched while interlaced:

https://www.dropbox.com/s/t465rnt4zw...e%201.mov?dl=0

How do I resolve this in the progressive timespace?

Emulgator · 10th February 2021, 23:56

I would guess at a 25 to 29.97fps blend conversion to YUV422P10,
indeed with wrong chroma placement.

Code:

v=LWLibavVideoSource("F:\_VID\cadence 1.mov")
a=LWLibavAudioSource("F:\_VID\cadence 1.mov")
AudioDub(v,a)
AssumeTFF().SeparateFields()
Srestore(25.000)

gives an idea, now the chroma..
Source might have been YV12, then upconverted under wrong assumption YV16, then 10bit ?
I would try to resize/shift chroma manually before srestore to see where I land. Later.

Cary Knoop · 11th February 2021, 05:40

Quote:

Originally Posted by Emulgator

I would guess at a 25 to 29.97fps blend conversion to YUV422P10,
indeed with wrong chroma placement.

Code:

v=LWLibavVideoSource("F:\_VID\cadence 1.mov")
a=LWLibavAudioSource("F:\_VID\cadence 1.mov")
AudioDub(v,a)
AssumeTFF().SeparateFields()
Srestore(25.000)

gives an idea, now the chroma..
Source might have been YV12, then upconverted under wrong assumption YV16, then 10bit ?
I would try to resize/shift chroma manually before srestore to see where I land. Later.

100% correct, using a 420 pipeline, deinterlacing and srestore() solved it!

Thanks!

Emulgator · 12th February 2021, 12:35

Glad to help !

10th February 2021, 03:28	#1 \| Link
Cary Knoop Cary Knoop Join Date: Feb 2017 Location: Newark CA, USA Posts: 397	Who can help solving this footage The source is interlaced, but there is also blending and it appears that the chroma and luma are sometimes not synched while interlaced: https://www.dropbox.com/s/t465rnt4zw...e%201.mov?dl=0 How do I resolve this in the progressive timespace?

10th February 2021, 23:56	#2 \| Link
Emulgator Big Bit Savings Now ! Join Date: Feb 2007 Location: close to the wall Posts: 1,542	I would guess at a 25 to 29.97fps blend conversion to YUV422P10, indeed with wrong chroma placement. Code: v=LWLibavVideoSource("F:\_VID\cadence 1.mov") a=LWLibavAudioSource("F:\_VID\cadence 1.mov") AudioDub(v,a) AssumeTFF().SeparateFields() Srestore(25.000) gives an idea, now the chroma.. Source might have been YV12, then upconverted under wrong assumption YV16, then 10bit ? I would try to resize/shift chroma manually before srestore to see where I land. Later. __________________ "To bypass shortcuts and find suffering...is called QUALity" (Die toten Augen von Friedrichshain) "Data reduction ? Yep, Sir. We're that issue working on. Synce invntoin uf lingöage..." Last edited by Emulgator; 11th February 2021 at 00:04.

12th February 2021, 12:35	#4 \| Link
Emulgator Big Bit Savings Now ! Join Date: Feb 2007 Location: close to the wall Posts: 1,542	Glad to help ! __________________ "To bypass shortcuts and find suffering...is called QUALity" (Die toten Augen von Friedrichshain) "Data reduction ? Yep, Sir. We're that issue working on. Synce invntoin uf lingöage..."

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