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-   -   How to capture 8mm was shot 16:9? (https://www.digitalfaq.com/forum/video-capture/14351-how-capture-8mm.html)

tobylars83 05-07-2024 10:07 AM

How to capture 8mm was shot 16:9?
 
I have an 8mm Sony MP120 that appears to have been shot in 16:9 but when i capture it like i usally do for all other 8mm tapes, the capture is stretched to 4:3?
What setting do i need to change to capture it properly or can I correct it post capture?
I am sorry for lack of information in my set up.
Camcorder> TBC and JVC > Window 7 with Vdub 1.9.11 with Huffyuv v2.1.1
I have Premiere Pro and Final Cut pro available to use if there is a way to change this video.
ty

Aya_Rei 05-07-2024 10:41 AM

2 Attachment(s)
Shot in 16:9? Must've been that the footage was filmed with the 16:9 wide mode on the camcorder set to on. What this does is squish the footage you film horizontally so that when it's stretched to 16:9 it'll look correct, with objects having the same width as if the footage was shot in 4:3 and encoded as such, such as resizing the 4:3 filmed footage to 1440x1080 with a PAR of 1:1. As the raw .avi file would have an AR of 3:2

What is needed is to give the footage an Aspect Ratio flag of 16:9, or if you'd want to resize the footage for YouTube for example, resize it to 1920x1080 with a Pixel Aspect Ratio of 1:1 (square pixels)

Here is an example of footage that was filmed with 16:9 wide mode set to on and resized to be 4:3 and 16:9. As you can see, the 4:3 version is incorrect, with the humans appearing too skinny. While with the 16:9 version they appear wider and overall look more correct, now they are not too wide (as in footage shot in 4:3 stretched to 16:9) but instead the width of everything would match what the footage would look like if it was filmed with 16:9 wide mode set to off and encoded with a 4:3 AR, so pretty much the default settings. You film in 4:3, you encode to 4:3, you film in 16:9, you encode to 16:9.

Saved with an Aspect Ratio of 4:3 -
Attachment 17909

Saved with an Aspect Ratio of 16:9 -
Attachment 17910

tobylars83 05-07-2024 11:24 AM

Thank you for the prompt reply. Yes i suspect that this was shot in ultrawide mode as it looks like your examples you shared. Forgive my rustiness and ignorance but what method would you suggest i use to resize it? Should i use Hybrid? I still havent perfected Hybrid so I have been using Handbrake (gasp!) to convert avi to mp4.
I am learning but i have a long way to go yet.
I just used Handbrake and made it 16:9 and it looks good.
Thank you very much

mrmuy97 05-07-2024 11:27 AM

Quote:

Originally Posted by tobylars83 (Post 96704)
appears to have been shot in 16:9 [...] stretched to 4:3?
What setting do i need to change to capture it properly or can I correct it post capture?

First thing, have you opened it in VLC and changed the aspect ratio between 4:3 and 16:9 just to verify that 16:9 is the correct AR flag as you go forward?

Posted as you were posting, and answered my question.

tobylars83 05-07-2024 11:36 AM

I tested the original captured AVI after I converted it with Handbrake and yes it is 16:9.
Thank you

mrmuy97 05-07-2024 12:03 PM

Quote:

Originally Posted by tobylars83 (Post 96709)
I still havent perfected Hybrid so I have been using Handbrake (gasp!) to convert avi to mp4.

If you're already using Handbrake, Hybrid is just more and better, nothing too daunting. Do you have a short clip from one of your captures in the 20s-60s range that you can use as your test file for Hybrid? That way you can change settings and quickly generate "apples-to-apples" comparisons to see the visual effects more easily and find your ideal settings.

tobylars83 05-07-2024 01:59 PM

I am more familiar with Handbrake and its settings. I want to learn Hybrid. I have tinkered with it but I got frustrated with it and had a large job to finish so I put that on the back burner for when I have some spare time to tinker with it more.
I would appreciate any help in the way screenshots, settings or procedures how to set and use Hybrid. I was overwhelmed and frustrated, but I will address it again soon.

Hushpower 05-08-2024 01:04 AM

Quote:

I have Premiere Pro and Final Cut pro available to use if there is a way to change this video.
I don't use either but I would be very very surprised if those cannot change a video from 4:3 to 16:9 on import/on the timeline. You would then save one encode.

I certainly wouldn't be putting it through Handbrake (or Hybrid) just to "convert" it to 16:9 before editing it.

lordsmurf 05-08-2024 01:46 AM

This should be simple to adjust in Avisynth.

Code:

Avisource()
QTGMC()
crop
mask
resize 16x9

Literally 5 lines of code.

But did you ever get Avisynth+ or Avisynth x64 installed?

Hybrid can work here too, but I always feel like I'm sparring with it for resizing/masking. Scripting is stupid easy by comparison.

tobylars83 05-08-2024 12:15 PM

No I have not gone back and figured out avisynth. I have been working on other projects but need to get back to this with a fresh approach.
thanks


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