VCD Capture resolution 352x480 or 320x480.

[gastorgrab]

While most guides say the proper resolution to capture for creation to VCD is 352x480 i always end up with diagonal lines across the screen.

Thinking on the subject a while i decided to try a capture at 320x480. I decided that since the target aspect ration was 4:3 that i should capture at multiples of that (320x240, 640x480, etc).

I have no more diagonal lines, but i can't help thinking that this will bite me in the ass later.

The capture card in this machine is an old ATI AllInWonder 128.

[lordsmurf]

While most guides say the proper resolution to capture for creation to VCD is 352x480 i always end up with diagonal lines across the screen.

Thinking on the subject a while i decided to try a capture at 320x480. I decided that since the target aspect ration was 4:3 that i should capture at multiples of that (320x240, 640x480, etc).

I have no more diagonal lines, but i can't help thinking that this will bite me in the ass later.

The capture card in this machine is an old ATI AllInWonder 128.

No. No. No. No. No. You've got all this confused. Forget what you know.

352x240 is VCD, progressive only (deinterlaced if source was interlaced )
352x480 is interlaced material in most cases (can also be progressive)
... this is the case with the lines you see here

4:3 aspect ratio is playback on tv only. Storage formats are different.

You're a perfect candidate to go to www.digitalFAQ.com and read the capture articles (understand source, AVI vs MPEG, interlace vs deinterlace, etc). Spend 30 minutes or however long you need there. It's in simple language too, I try to not use too much video or tech talk.

[gastorgrab]

I just came from that page.

There not horizontal lines i see (i should have chosen my words better), it looks like this:



I've always assumed thet TMPGEnc uses the second field to blend with when you have interlaced source and progressive target.......Yes/no?

I should have also included the following info;
Using VirtualDub for capture with HuffYUV codec.

[lordsmurf]

You're seeing a corrupt tv signal. That MASK image is a 1980s tape, poorly converted to VCD.

The noise is a form of herringbone (though that's normally just horizontal).

Only way to fix that is to fix your wiring.

Or if the source is no longer available, restore it. It took me a few weeks to get perfect filters setup (in my free time) to fix that stack of discs.

[Tbear]

Looks like a ground loop problem. need to make sure everything is grounded proberly. Computer, VCR and cable need to be grounded.

[gastorgrab]

You're seeing a corrupt tv signal. That MASK image is a 1980s tape, poorly converted to VCD.

The noise is a form of herringbone (though that's normally just horizontal).

Only way to fix that is to fix your wiring.

Or if the source is no longer available, restore it. It took me a few weeks to get perfect filters setup (in my free time) to fix that stack of discs.

So at least that part isn't my fault. For TV captures i'll have to complain to comcast. VCR captures didn't seem to have the problem. (RCA cables)

About interlaced video though, when making a VCD (progressive), does TMPGEnc (or any encoder) make use the separate fields or will it do something similar to Photoshop "Flatten Image"?

Quite a few of my early VCD's look pretty crappy. It wasn't till i learned what ForcedFILM was that my DVD to VCD backups started looking acceptable.

SuperVCD wouldn't work on all my DVD players, so i stuck with VCD. I just ordered a DVD-Writer so i better get this stuff straight before i waste alot of time and money.

Lately i find myself re-learning a lot of things i thought i already knew (interlaced video).

and before i forget, Thank You!

[lordsmurf]

Read this:
http://www.digitalfaq.com/capture/interlace.htm

Easier than me trying to re-explain here.
It'll answer your interlace question and more.

Call up the cable guys and gripe. Do it daily until they fix you up better.

[gastorgrab]

......edited......

I just ordered a DVD-Writer so i better get this stuff straight before i waste alot more time and money.

......edited......



Understood!

[choirislife923]

I just came from that page.

There not horizontal lines i see (i should have chosen my words better), it looks like this:



I've always assumed thet TMPGEnc uses the second field to blend with when you have interlaced source and progressive target.......Yes/no?

I should have also included the following info;
Using VirtualDub for capture with HuffYUV codec.

hate to bump topics but...is the source from cable? if the channel is below 120, your cable provider needs to be contacted...something is wrong with the cables that lead into your house (any channel below 120 is still analog, and noise is only prevalent in analog signals...digital signals break up). if its over-the-air, i suggest either a better antenna or going dish or cable. i record everything on TV with that kind of noise...i live outside of DC, where there is a huge population boom...buildings block my signal everywhere. therefore, i always get noisy over-the-air TV. igh:

[ofbarea]

This is intersting.

Could you post a picture of a capture at 320x240 resolution. I would like to see how that looks.