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Video rip. Part 2-2. How to determine what we have: progressive, interlaced or telecined?

Content


  1. DVD preparation
    1. vStrip
    2. DGMPGDec

  2. Video processing
    1. What is interlace and what it is eaten with
    2. How to determine what we have: progressive, interlaced or telecined?
    3. Getting rid of ordinary interlacing (deinterlace)
    4. IVTC

  3. Squeeze and pack


The most trivial - eyes. Open the video in VirtualDub and see if there is interlacing. If not, then progressive video. If there are stripes on each frame - a clear sign of interlace. If you see a pulldown, for example, 3 frames without interlacing, 2 with it, or some other pattern (they also say pattern), then this is most likely a telecine.

Trust but check! Therefore, I will review the utilities that will help in this.

Firstly, if you are going to rip dvd, then in any case you have already used DGMPGDec. So, in the process of creating a d2v file, the program shows a window in which it writes what type of video you have, in her opinion. Opinion is often wrong.
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Secondly, you can use a great utility. image MeGUI. This program is a wrapper for a heap of cool video processing software. Download, you will not regret. On top of everything else, MeGUI can automatically update this bunch of software to the latest versions.

So here. There is a menu item Tools -> AVS Script Creator , in which, on the Options tab, we specify the input file, and on the Filters tab, click the Analyze button. The program will rustle and give out what, in her opinion, your video is from itself and will recommend a plugin for processing. On the Edit tab, you can see the code of the AVS script with this plugin.

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In the comments advise more MediaInfo .

In the next part, getting rid of simple interlace.

Source: https://habr.com/ru/post/61826/


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