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View Full Version : Broadcast Talk Show, 1080i HD?


frozenthorn
21st May 2011, 01:35
From reading the guides I've been able to find, I'm mostly sure the content is 1080i HD, so I could use Yadif or any similar method to deinterlace the video when encoding to another format.

I just wanted to confirm that if someone had a moment to look at this 30 sec clip I cut out of the show? I heard from a friend that it's more likely Film, and needs to be decimated but the fps is already 29.97 so I didn't think that was the case?

The TS information said "Scan type : Interlaced & Scan order : Top Field First" which seems pretty straight forward, is that information always accurate or can it be affected by broadcast format?

http://www.mediafire.com/?t44eviee1hvs4d5

Thanks in advance,

QBhd
21st May 2011, 04:39
Run the TS through DGIndex... it will tell you all you need to know about the stream. I have been doing some work on captured HDTV and the ones I have are around 90-92% Film at 29.970 FPS so I have been assuming it is a Hybrid with mostly Film... I run it through this "TIVTC + TDeint(EDI) script:

LoadPlugin("...\ColorMatrix.dll")
ColorMatrix(hints=true, interlaced=true, threads=0)
LoadPlugin("...\TIVTC.dll")
LoadPlugin("...\EEDI2.dll")
LoadPlugin("...\TDeint.dll")
edeintted = AssumeBFF().SeparateFields().SelectEven().EEDI2(field=-1)
tdeintted = TDeint(edeint=edeintted,order=0)
tfm(order=0,clip2=tdeintted).tdecimate(hybrid=1)

So grab DGIndex and run the stream through it to find out the details about your source.

QB

manono
21st May 2011, 09:01
Welcome to the forum,

I heard from a friend that it's more likely Film, and needs to be decimated but the fps is already 29.97 so I didn't think that was the case?
I don't guess your friend had a look at the clip because, in this case at least, he's dead wrong. It's pure interlace, shot using video cameras (as opposed to using progressive 24fps film cameras), and if it has to be made progressive, it has to be deinterlaced with Yadif or something better.
The TS information said "Scan type : Interlaced & Scan order : Top Field First" which seems pretty straight forward, is that information always accurate or can it be affected by broadcast format?
Yes, that's accurate, but that would also apply to telecined film where an IVTC would be called for, rather than a deinterlace. The eyes are always a better judge of what you have than any app.

frozenthorn
22nd May 2011, 05:19
Thanks! Lots of good information :)