determining 24p vs 24p advanced footage

C

cmp

Member
Is there a way to determine if your footage was shot at 24p vs. 24p advanced?

I don't have the remote that comes with the DVX100a, but am borrowing it from a friend with the same camera. I was told I can toggle frame-by-frame, and that 24p will have 3 progressive frames followed by two interlaced frames, and 24pA will be 4 progressive frames followed by 1 interlaced frame.

Trouble is, I'm a little in the dark about how to tell if the footage is progressive or interlaced.

I thought there might be something I could do to figure it out, either using the camera's VTR or by viewing the footage in FCP. avoiding the problem of capturing the footage incorrectly.

thanks in advance
 
Thank you David, you've been very helpful to me in the past as well.

I'm waiting for my friend's remote, but in the meantime I tried yet again to check out what I could see in my edit system (FCP). I loaded a tape that I know to be shot in 24p adv., and started playing the footage frame-by-frame. Voila! Four frames appear "smooth," while the fifth has these jagged every-other lines, what I assume to be an indication of an interlaced frame.

When I do the same with footage that I know to be shot in standard 24p, I see three "smooth" frames followed by two jagged frames, which makes sense given the 2:3:2:3 cadence.

I will see what I can determine on the camera LCD, but maybe this can help someone else in the future who is trying to determine whether their footage was indeed shot at 24p or 24p advanced.

Most of my footage is clearly marked, but there are a few errant tapes. Also I shot some of the early footage on the DVX100, and that small wheel indicating which mode was being used (F5, F6, etc) was very easy to change accidentally. I may need to go through one of my tapes very carefully to see if that occurred.

Thank you - I hope I am correct in how I judged what I was looking at on the screen.
 
I believe there is an indicator on the LCD display during playback. It should clearly say 24P or 24PA on the screen. No need to look at frames. If you don't see it, perhaps some of the on-screen displays are disabled?
 
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