Switching Field order and Telecine

Krisqo · Post by **Krisqo** » Thu Oct 12, 2006 4:54 pm

I tried SmartDecimate but it gives me jumpy footage and dropped frames when I export so I need to IVTC... but there is a problem:

My footage cannot decide what it wants to be. It hovers about 60-75% NTSC with the field order switching from top to bottom at least 15 times per disk (I'm ripping each disk as its own d2v file so I don't have 71 scripts confusing me). The problem comes when I use Telecine and have to specify a field order.

Should I force it to use either the top or bottom field and if so which should I use. If this is not the way to go, what is?

(In case you are guessing, this is all still for the same AMV

. Never encounterd this shit before so I'm lost.)

Scintilla · Post by **Scintilla** » Thu Oct 12, 2006 5:47 pm

I would highly suggest using TIVTC (which contains TFM and TDecimate) instead. The plugin has built-in functionality for fixing D2Vs which refer to MPEG-2 streams that contain illegal field order changes.

Krisqo · Post by **Krisqo** » Thu Oct 12, 2006 6:39 pm

Never heard of that. I'll check online for more information.

Thanks again Scintilla.

Scintilla · Post by **Scintilla** » Thu Oct 12, 2006 6:52 pm

I should have mentioned that you can get TIVTC, as well as all of Tritical's other filters, <a href="http://bengal.missouri.edu/~kes25c/">here</a>.

Krisqo · Post by **Krisqo** » Thu Oct 12, 2006 7:00 pm

Beat you to it. But do you have any links on how it is used? I'm reading the readme files but it would be easier to understand if I saw the script in use in a filter chain.

Scintilla · Post by **Scintilla** » Thu Oct 12, 2006 7:40 pm

Here's an example from one of my own scripts:

MPEG2Source("K:\source\D2vs\excelsaga23.d2v")
TFM(d2v="K:\source\D2Vs\excelsaga23.d2v")
TDecimate(mode=1)

IIRC, this just does a standard IVTC, with the end result at 23.976.

Krisqo · Post by **Krisqo** » Thu Oct 12, 2006 7:51 pm

you have to call your d2v file twice to use it?

You just add the other stuff

TDecimate
MergeHints
FrameDiff
FieldDiff
ShowCombedTIVTC
RequestLinear

under TFM as needed?

Scintilla · Post by **Scintilla** » Thu Oct 12, 2006 8:01 pm

Krisqo wrote:you have to call your d2v file twice to use it?

Well, while you don't NEED to use the D2V argument in TFM, it helps.

I actually don't know what most of the rest of these do, so let's find out.

Krisqo wrote:MergeHints

You don't need this if you call TDecimate right after TFM.

Krisqo wrote:FrameDiff
FieldDiff

I'm not sure why you would ever need to use these.

Krisqo wrote:ShowCombedTIVTC

You'd only ever use this to tweak TFM (much like sticking "debug=true" into a Telecide call); you'd want to put it directly afterwards, and get rid of it once you find TFM settings you like.

Krisqo wrote:RequestLinear

I don't know where this one is in the readme files... <^^

Krisqo · Post by **Krisqo** » Thu Oct 12, 2006 8:30 pm

I just listed them as I printed them.

RequestLinear

RequestLinear makes sure that all requests for frames from the filter downstream are turned into linear requests for frames from the filter upstream of it. This can be useful when you want to use a filter that
requests frames non-linearly in combination with a filter that requires linear requests.

Whatever that means.

I figured you'd only need TFM and TDecimate since they both have the longest readmes. I have them printed so I'll read them all over tomorrow at school.

One other question regarding this whole thing. I played around with Telecide in my Cardcaptor vob and tried to make sense of the show=true information it gives but there is something I don't understand and the web is not helping

Its cut off on the left but it says stuff like
[~using c] [progressive] [out-of-pattern]
[~using c] [interlaced] [out-of-pattern]
then it says the same using [in-pattern] and even [in-pattern*]

Is this at all important or is is worthless info?

Krisqo · Post by **Krisqo** » Thu Oct 12, 2006 9:15 pm

I tried the filter and it gets rid of the interlacing. I'll try it in my video tomorrow. But I got a weird message that forced TFM to create two new avs files named sakura1-FIXED(why two I don't know). Is this normal?