P or I ?
wideweb
7 Dec 2010 18:17
So I have this MOV file.
How do I know it's progressive or interlaced?
How do I know it's progressive or interlaced?
jason
7 Dec 2010 18:34
Look in editing programs properties it should tell you if it's P or I but that is no guaranty that it wasn't upgraded from HDV 1440 x 1080i.
wideweb
7 Dec 2010 18:38
My most sophisticated editing software is QT Pro. Any freeware?
artmyth
8 Dec 2010 00:43
try this: http://lmgtfy.com/?q=open+source+video+editing
ionescu
8 Dec 2010 14:23
If it looks bad on your computer monitor than it's interlaced.
AcmeStudios
8 Dec 2010 18:19
In QT Pro Go: Window>Movie Inspector. You will get a small dialog box that will display the format and framerate.
You should be able to figure it out from there, i.e. 29.97 is going to be Interlaced, whereas 23.98 / 23.976 / 24 / 30 etc. will be progressive.
It will also tell you the Frame Size, i.e. 1440x1080 720x480 etc.
You should be able to figure it out from there, i.e. 29.97 is going to be Interlaced, whereas 23.98 / 23.976 / 24 / 30 etc. will be progressive.
It will also tell you the Frame Size, i.e. 1440x1080 720x480 etc.
wideweb
8 Dec 2010 18:25
I don't think 29.97 must be interlaces, and I don't think the rest of fps must be progressive.
AcmeStudios
8 Dec 2010 18:48
29.97 is ALWAYS Interlaced as it is the NTSC standard - unless an editor changes it in post-production.
All of the other framerates I mentioned are ALL progressive.
All of the other framerates I mentioned are ALL progressive.
wideweb
8 Dec 2010 19:01
Is HD at 29.97 always interlaced? I don't think so.
AcmeStudios
8 Dec 2010 19:56
In most cases Yes. 1080i60 = An HD image shot @ a framerate of 29.97 - ( 60 fields per sec) However there are a ton of variables to consider based upon the camera it was shot on. For instance I use a Canon HV-30 for a lot of work, and I shoot at 24fps. However the content on the tape is in a 1080i60 wrapper @ 29.97 until I remove the "pulldown" to get the 24fps it was shot at.
I could leave it at 29.97 but the "cadence" would be terrible and result in a horrible image when broadcast. Now... that is simply the way the manufacturer of the camera achieves the goal. Certainly every camera is NOT setup the same, hence one really needs to understand the camera the footage was shot on, AND what the settings were at the time of the shoot, to be 100% accurate.
You need do do some basic research :) - Like you said... "you don't have a professional NLE" - so you need to educate yourself as much as possible, it can get quite confusing.
Here is a link to a Conversion Matrix that shows all formats and framerates - as you can see it can be a can of worms.
http://www.acmestudios.com/conversion_matrix.pdf
I could leave it at 29.97 but the "cadence" would be terrible and result in a horrible image when broadcast. Now... that is simply the way the manufacturer of the camera achieves the goal. Certainly every camera is NOT setup the same, hence one really needs to understand the camera the footage was shot on, AND what the settings were at the time of the shoot, to be 100% accurate.
You need do do some basic research :) - Like you said... "you don't have a professional NLE" - so you need to educate yourself as much as possible, it can get quite confusing.
Here is a link to a Conversion Matrix that shows all formats and framerates - as you can see it can be a can of worms.
http://www.acmestudios.com/conversion_matrix.pdf