Video capture jerkyness

[nerdfragger]

I have a cheesy STB TV PCI FM tv tuner card and I would like to back up my VHS tapes. The video looks pretty good, it's just that the video seems to jump a little bit. In other words, the video is smooth for like a seocnd, then it pauses for a tenth of less of a second (looks almost like 1 frame maybe). It is not skipping the frames (at least virtualdub and Dscaler do not report it) yet both capture programs (ok so Dscaler isn't a capture program, but the recording function it not that bad in all actuallity) record video with this problem. I tried the JudderTerminator or whatever it is called in Dscaler, and it works for the displayed video, but the captured video seems untouched. My specs are:
Abit KT7-RAID with AMD AthlonXP 1600+ (running at 1.05... my K7S5A's IDE 2 port was faulty when it arrived so I used my trusty KT7)
WD 153Ba primary drive and 2x WD400BB Capture drives in RAID 0 config
512MB of PC133 RAM running at 100Mhz
STB TV PCI w/ FM (bt848 based card)
Win2K

And I am using the Picvideo MJPEG codec, although all codecs show this problem. Also All resolutions show this problem. Thanks for your help.

EDIT: If you could tell me a way to "hack" my generic capture drivers to allow me to capture at 640x480, that would be cool also. When I used the STB drivers in win98, I coud capture at 640x480 with no problems (other then the fact that back then, it was a PII400 and not an Athlon 1.05, so the video had skipped frames).

<font size=-1>[ This Message was edited by: nerdfragger on 2001-12-01 23:21:31 ]</font>

<font size=-1>[ This Message was edited by: nerdfragger on 2001-12-01 23:24:38 ]</font>

[P@iNKilleR]

U can download a nice little capturing program called winvcr its very good & it wont produce jerkiness whilst capturing into mpeg 1 vcd 352*288 pal 25 fps & 352*240 NTSC 29 or 23.97 fps. There are lots of crack nocking around for the encoder aswell.

Kev!

[P@iNKilleR]

its only me again.. here is the link

http://www.cinax.com/Products/winvcr.html
and here is the link for the trial crack


http://www.thecrack.net:8080/db/list.php3-let=c&page=11.htm

is this some use

Kev

[TheRookie]

WinVCR doesn't work in XP

[vhelp]

nerdfragger,

In my experience with the Hauppauge wintv pci card that I was playing
with last week, I was having basically the same thing happening to me
too. Since your experience is pretty much the same as mine, you have
satisfied my theory, that the card is not up to spec with todays pc's.
I bought my card back in June of 1996. I don't knw how old your card
is, but it sounds like mine, and may be the problem. I switched to my
ATI-TV Wonder card, a more recent capture card, and it has (since yesterday
and today) ben giving me nothing but GREAT captures. The more I make /
encode my avi's to MPEG (SVCD) and appreciate the quality I'm getting
from it, the more I'm vearing off from my DC10+ card. Sorry DC10+

I know. . . I know. . . the ATI-TV Wonder is a piece of crap - NOT!!
I've managed to get it working in my system, and with together with my
ATI Rage Fury card, and it's ben beautiful music since!
I did try the ATI-TV Wonder with my prev. video card, ATI Rage 128.
But, my captures at 352x480 were very poor, with green lines or gliches in
them. Soon as I switched to my ATI Rage Fury, - - NO lines, and constant
captures (minus 7 frames lost/hour). That's the Trueth!!
I think that those more expensive ATI models are a rip off, IMO.

It sounds to me, IMO, if you can get your capture card to work in your
system without ANY IRQ conflicts, and you find the right resolution to
capture with (IMO, 352x480 is the sweet spot) you'll hear beautiful
music playing in the background too, he, he.... -

nerdfragger, I think its time for a change (capture card, that is), he, he...

The ATI-TV Wonder @ $79 bucks in most stores (CompUSA) is,
IMO a great buy, he, he.... !!
I bought mine back in Feb/2001.

Later!

PS: for what its worth, some time ago, I posted here that
this card sucked (in so many words) I'd just like to say,
I WAS WRONG!! It now kisses and sings sweet jingles in
my ears, he, he. . . .!@!@!
---------------------------------------------
Sample Clips . . .revised web site

<font size=-1>[ This Message was edited by: vhelp on 2001-12-02 20:15:19 ]</font>

[Roginator]

I use an old STB PCI TV card and it works ok for me. I used it in a 333MHz Dell for a while (Win95), then got a 1.4 GHz Athlon a few months ago (Win98se).

I currently capture at 720x480 HuffYUV codec (fast) using AVI_IO. I couldn't use VirtualDub at that resolution.

Possibly the key to removing the jitter is to do an inverse telecine (IVTC). It takes the 29.97 fps TV signal and converts it to the original 23.9? fps of film. I do this with a short 3-line Avisynth program and the great GreedyHMA IVTC module. For stuff that was originally done in film this works GREAT (and helps increase efficiency of later compression).

Then I use VirtualDub to delete commercials and apply other needed filters and either frameserve to TMPGEnc or convert to DivX3.11 with the fast motion patch.

As for using this card with XP -- can't help you with that, although there are several generic WDM drivers for this card which may or may not work as well as the old VfW drivers.

[mgruber]

Seems that all BT848/878 have problems?!? And please don't care with this AIW recommendations! I have bought a AIW card and can tell you, it works good but it detects Macrovision and this is a fault! Then after looking for WDM BT878 drivers, I found at

http://sourceforge.net/projects/btwincap

The driver is still under development, but it is miles ahead over any other I've tried. Also you can send suggestions/reports to the author.

Capture quality is also wonderful. After that, I'm throwing my AIW away (and that's what happened to my money).
If you have minor eletronic knowledge, read BT848 datasheet and you will see it is a great chip (has lots of features like hardware color format conversion and image stretching), but since Conexant bought it, it seems that developers are lacking support (the same happens with their Fax-Modems - Conexant is going the opposite way! While other "chip" company opens information they are hiding... - Hope they read this! ).

For this reason, the community is migrating - like this driver - to OPEN SOURCE!

-----
Ahh, I almost forgot. The Overlay mode limits the capture to 240/288 lines. You must set the Preview mode...


<font size=-1>[ This Message was edited by: mgruber on 2001-12-03 04:17:04 ]</font>