Quote:
Originally Posted by scharfis_brain
the first I do with all 'unknown' video stuff is bobbing and counting unique frames.
this means a video is loaded into AVS and bob() gets appended.
this thing is then loaded into VDub.
then count the unique frames in 200 bobbed frames.
also noteyour frames an a sheet of paper!
also pay attention for blended frames.
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Hi Scharfi!!
I’m very glad to have you here with us!
This “forum” stuff is strange... I never talked to you before, but I have read a lot posts from you that looks like I already know you for a long time. I just miss the “interlaced” Simpson’s brain.
And sorry for the late reply... I was very busy these last days.
Well, I did some tests with the method you described and got many different results.
Some of them are easy to decide what to do, but some I don’t have a clue, even if I can do anything. Some times is hard to identify what kind of field/frame I have. Especially hard when there are blended fields... I probably got lost inside some of the patterns that have many of those fields.
Well... I’ll post what I got here:
NTSC material (720x480 @29.97fps):
1-) o d d o d o d d o d o d d o d o d d
As you said, this one is a simple telecined NTSC film, and a standard IVTC should handle it. But I have many sources that loose the pattern on scene changes
(sc). I mean they have a little gap in the pattern, like this:
2-) o d d o d o d d o
(sc) o d d o d o d d o d o d d o d o d d o d o d
(sc) o d d o d o d d o d
Will a standard IVTC handle these little “gaps” inside the pattern correctly?
3-) o d d o d o d d o d o d d o (sc) o o d o d d o d o d d o d o d d o (sc) o o d o d d o d o d d
Here is another example of these little “gap” at scene changes. The question is the same.
4-) b d b d o d o d o d b d b d o d o d o d b d b d o d o d o d
This one looks like an already field blended to me...
Can I do something with it?
5-) o b b b b b b b b b o b b b b b b b b b o b b b b b b b b b
Now this is strange
I don’t know, but looks like a full interlaced with all blended fields!
This one has many
bobed fields with some dirt and ugly comb effect.
6-) o d o d o d o d o d o d
o d o d o d o d o o o o o o o d
o d o d d o d o d d o d o d d o d o d d o d o d d o d o d d o d o d d o d o d d o d o d
(sc) o o d o d d o d o d d o d o d d o d o d d o d o d d o d o d d o d o d o d
o o o o o o o d o d o d d o d o d d
This sample has some movie inside the movie. I mean in those
bold fields there is a car that goes through the screen and when the car gets out of the screen we are in another scene and the mix of the car passing and the scene in the background is what gives all clean fields.
7-) o d o d d o d o d d b o b o d b o b o d b o b o d b o b o d b o b o d b o b o d b o d o d d o d o d d b o b o d b o b o d b o b o d b o b o d b o b o d b o b o d b o b o d b o d o d d o d o d d o d b o d b o b o d b o b o d b o b o d
I’ll not even try to show the pattern here. This is probably not 100% correct (but you got the picture). Some blended fields are easy to be taken as clean field depending of the motion. This one seems to have two patterns inside a bigger pattern that repeats itself. Is there anything to be done here? Or just a FieldDeinterlace (blending fields) will keep the motion smooth?
Now a few PAL material (720x576 @25fps)
1-) o d o d o d o d o d o d
Beautiful progressive PAL.
2-) o b o b o b o b o b o b
Watching this clip without bob() we can see (in all frames) some tiny comb effect. Well, I guess this is full interlaced, as it has no duped frames (with bob)... but interlaced with blended fields?
3-) o d b o o d b o o d b o b o d o b o d o b o d o d o d b o o d b o o d b o b o d o b o d o b o d o d o d b o o d b o o d b o b o d o b o d o b o d b o o d b o o d b o d o o b o d o b o d o b o d b o o d b o o d b o b o o b o d o b b o o d b
Well, this looks to be a trouble one.
It seems to have 2 or even 3 patterns inside a bigger pattern. I can’t imagine if there is really something that could be done “automatically” other than blend the all fields to keep the motion smooth.
Well that is it. There are many more “weird” examples but I believe those are more than enough...
Quote:
and lots of other weird 'telecing' patterns
I've seen serveral ones so far!
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That’s the problem... and I don’t know what to do with these so different patterns (if there is something that can be done).
Quote:
please post a short sample of unprocessed (no resizing, no deinterlacing, either direct stream copied or chopperXPed) video, which shows the problems.
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Well, there isn’t really one problem, just my ignorance in how to deal with all these different interlaced sources.
I would love to have your opinion on how I should process the ones that I posted above and, if it’s possible, a general approach on how to work with any other interlaced source. I know that this would take a lot of writing, but I would be really thankful with just some tips and clues.
Even if you could post some script examples would be great!
As
“Scharfi's scripts are the best ones!”
(yes I read that thread too
and even used the apostrophe correctly
)
As I said, I have many music videos to deal with. Please, tell me if you want a sample of any specific example that I posted above and I will happily find a way to place a link here.
Thanks a lot!