Working with tv Video

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Ooklah
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Working with tv Video

Post by Ooklah » Thu Feb 03, 2005 11:14 am

I've been recording some tv video and want to compress it to have it take less room.
My method i'm currently using seems drawn out and I'm wondering if there is a shorter way to do this:

I have a haupagge 250 tv video card, so it only records to mpeg. I take the mpeg and run it through dvdtoavi and extract the audio. Then I take the .mpa file and run it through winamp to get a .wav file.

From here I stick that into avs with this code:
LoadPlugin("C:\DVD-Ripping\AviSynth 2.5\plugins\MPEG2Dec3.dll")
LoadPlugin("C:\DVD-Ripping\AviSynth 2.5\plugins\Decomb521.dll")
MPEG2Source("E:\Recorded Video\mythbusters-busterspecial.d2v", idct=5)
Telecide(order=1, guide=1, post=4)
Decimate(quality=3)

and finially into virtual dub where I use ffdshow divx3 at 1000. Should I be using a different codec?

Is there a way to simplify this process and is there other options I could use for cleaning up tv video?


My other question for the day is How can I get cropping to work in virtual dub correctly?

I have my source video looking like this:
Image

Then I resize it with the resize filter to 640x480 and then use the null transform filter to crop out the black bars which gives me this:
Image

This looks all nice and pretty until I go to the final video which looks like this:
Image

Which is clearly not what I wanted. What's happening?

Ooklah
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Post by Ooklah » Thu Feb 03, 2005 11:14 am

crap... very wrong forum >_<

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Scintilla
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Post by Scintilla » Thu Feb 03, 2005 11:28 am

When you crop, you have to make sure that the height and width of the image remain multiples of 8 (if that doesn't work, then make them multiples of 16).
That's about the only thing I can think of.

And why are you using ffdshow DivX 3? Use something newer, like DivX 5 or XviD.
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Ooklah
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Post by Ooklah » Thu Feb 03, 2005 11:44 am

the mutliples of 8 appear to work. And ffdshow is the one i'm most familir with using. I'm not sure about the xvid and no clue about dvix5

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Scintilla
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Post by Scintilla » Thu Feb 03, 2005 11:56 am

I don't have anything against ffdshow if that's what you're used to, but ffdshow does include many newer and better encoders than DivX 3, doesn't it?
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Ooklah
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Post by Ooklah » Thu Feb 03, 2005 7:07 pm

yeah it does. that one just happened to be the one I used. I'll try some of the others.

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Gemberkoekje
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Post by Gemberkoekje » Thu Feb 03, 2005 7:11 pm

not picking any fights buttah... that ain't anime :P
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Ooklah
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Post by Ooklah » Thu Feb 03, 2005 7:39 pm

I need stuff to test everything on. =P

And i'm still wondering if there is a better way then how I go through encoding the video.

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Maverick-Rubik
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Post by Maverick-Rubik » Fri Feb 04, 2005 4:27 pm

And General Video isn't restricted to anime.

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