Stats flicker between Progressive/Interlaced

[surreal120]

After using the Big3 + Scenarist to transcode and reauthor DVDs, when I open a title set in DVD2AVI the stats flicker back and forth (very, very fast) between Progressive and Interlaced. It almost looks like both Progressive and Interlaced are being displayed at the same time. What does this mean?

[jggimi]

It most likely means Telecining, without pulldown markings in the MPEG-2 flag fields. See this tutorial (http://www.doom9.org/ivtc-tut.htm) for more info.

[surreal120]

That link is giving me a 404. Sp?

Anyway, is this "bad"? - i.e., will this confuse a progressive scan dvd player into not being able to detect 3:2 pulldown, for instance?

[manono]

Hi-

We meet again. The link worked fine for me. Try it here:

http://www.doom9.org/ivtc-tut.htm

I linked to it in the Newbies Forum also. Or go to the Home Page-Guides-Document Overview-Other Stuff-IVTC And Deinterlacing Tutorial.

[surreal120]

I read through the article and tried using ParseD2V on my movie. Other than the first and last frame, there are no pattern breaks (i.e., - it goes 012301230123...). Also, DVD2AVI says "FILM", but with no %XY. Does this mean 100%?

So, I'm assuming this is great as far as a progressive scan dvd player or HDTV with 3-2 pulldown detection is concerned. Which begs one last question - will backups created like this actually look better/have fewer artifacts than the original DVD (which in this case was FILM 96% I think) when played back on the average prog scan dvd player? Or did whatever problems that were originally present likely get copied over at some point when using Big3 + Scenarist?

[hakko504]

Originally posted by surreal120
I read through the article and tried using ParseD2V on my movie. Other than the first and last frame, there are no pattern breaks (i.e., - it goes 012301230123...). Also, DVD2AVI says "FILM", but with no %XY. Does this mean 100%?
Yes. % is only shown when it differs from 100%.

So, I'm assuming this is great as far as a progressive scan dvd player or HDTV with 3-2 pulldown detection is concerned. Which begs one last question - will backups created like this actually look better/have fewer artifacts than the original DVD (which in this case was FILM 96% I think) when played back on the average prog scan dvd player? Or did whatever problems that were originally present likely get copied over at some point when using Big3 + Scenarist? What happened is that when you use the big 3 they deinterlace non-FILM parts of the movie, effectively making them FILM. If this was because of a bad telecine then you have not lost any quality because of this. If it really was a NTSC sequence then you might experience some problems due to the deinterlacing, like stuttering video (because you reduce framerate as well when you IVTC), ghost images (blend mode) or shimmering colors (interpolate mode) etc, just like any IVTC applied to NTSC can produce.

I think your original question is because a flag somewhere isn't properly set in the video stream: It should be progressive all the time, but for some reasons it switches every time you add an extra field to the video. (i.e. 1 or 3 in the d2v)

[surreal120]

Hakko (and everyone), thanks for the help! I really appreciate it.