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12th September 2020, 07:25 | #1 | Link | |
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How to handle soft telecine in Vapoursynth?
How do one properly handle soft telecine in Vapoursynth?
-> So what should one use? Cu Selur |
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15th September 2020, 09:51 | #4 | Link |
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Rff=false is not the same as force film.
The main difference is that force film drops extra fields tobpreserve the framerate. Rff=false doesn't. So unless the material is 100% film the output will differ and be some kind of pseudo vfr.
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15th September 2020, 16:27 | #7 | Link |
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@videoh: you are right for Windows it might be an alternative, if:
a. the source can be decoded by the gpu (true for mpeg2&mpeg4 asp/avc/hevc; not so true for example ProRes and other formats) b. the user has an NVIDIA graphics card -> not really a general solution Cu Selur |
15th September 2020, 16:48 | #8 | Link |
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Sure, it's windows with limited video type support. Ever see soft pulldown in a ProRes file? What serious video person would not have an nVidia card?
Seems the only thing you are missing is force-film mode. It would be almost trivial to add that back to D2VSource. I don't know why they removed it. Are there are other things you are missing for generalized Vapousynth operation with pulled-down sources? BTW, the main use for force-film is when the movie is 100% 3:2 but the credits are not pulled down. In such cases, you get film percentages like 95%. Is this your use case? If not, what is the specific use case that is flummoxing you with the Vapoursynth support? Do you actually have a file that you cannot process properly, or are you just theorizing? Last edited by videoh; 15th September 2020 at 16:57. |
15th September 2020, 17:58 | #9 | Link |
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I have a few files that are soft telecine, I can process them fine with Avisynth, so it's nothing 'serious' in that regard.
Since I move more and more away from Avisynth and often use Linux (and sometimes Mac OS) I wanted to know how to handle 'soft telecine' clips in Vapoursynth, so that I can add proper support for it to Hybrid. Searching for a Vapoursynth based solution (which I ideally could also use on Linux and Mac OS) I had do realize that it couldn't find how people deal with soft telecine content within Vapoursynth, so I started this thread. (I assumed that this is something basic and that there should be plenty of ways to deal with it and I simply didn't search with the right 'search terms' or something similar.) Cu Selur |
15th September 2020, 18:51 | #10 | Link | ||
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The ‘FORCE FILM’ feature in DGIndex was inherited from its predecessor DVD2AVI. Unfortunately, the old DVD2AVI/DGindex Doom9 guides appear to be unavailable now, but a search conducted to this remanent that was last updated on April 2003:
http://foro.doom9.org/ivtc-tut.htm Quote:
https://forum.doom9.org/showthread.p...76#post1808076 Quote:
Passing rff=False to the d2vsource plugin should work just fine if your source material is 100% film (“soft telecine”). I don’t have any clips to test |
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15th September 2020, 18:56 | #11 | Link | |
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Quote:
Patches welcome I guess.
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15th September 2020, 20:07 | #12 | Link | ||
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Quote:
Quote:
Last edited by videoh; 15th September 2020 at 20:13. |
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15th September 2020, 22:37 | #13 | Link |
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Exactly, I was implying that the force-film feature, in my opinion, is not only unnecessary, it is inconvenient. If you want to deal with 100% film material, you might just ignore the pull-down flags. For that you can use open-source plugins (d2vsource with rff=False) on windows, linux and macos. And this, if I'm not mistaken, is what Selur was asking in the first post
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