Frames dropped in Virtual Dub with Win XP

[roel]

Hello,

I need some help. I'm using Windows XP and I want to capture a movie from my TV. I use Virtual Dub and DivX Codec 4.01 to do this, but while capturing there are a lot of frames dropped (example: after 30 seconds, 200 frames dropped). You see....too many to have a good captured movie.

Can someone help me with this problem???? I'm not so experienced, but I just want to capture good movies from TV.

Greetings Roel (Holland)

[Shabubu]

Basically you should never capture to divx, get a capture codec like MJPEG or HUFFYUV, then convert it to divx afterwards with virtual dub. The guides and the links to these codecs are to your left

[roel]

Thanx for the tip, but I used this codec and after 30 sec there are 70 frames dropped.

Can you help me any further?????

[Quanta]

i also tried to capture a video from a sony digicam with a geforce II MX ViVo card. i tried every resolution but i never got more than 16,66 frames/sec with any codec (MJPEG,HUFFYUV). my other hardware is pretty good so it shouldn't be the problem.

can anyone help?

[FiEND]

you also have to capture in uncompressed PCM audio not mp3 or divx audio etc. one other thing to check.

[Frisco]

Hi,

You haven't mentioned the specs on your computer, so perhaps its something hardware related.

Do you have a fast hard drive (ie. 7200 rpm)?
Do you have enough ram?

I am capturing using a microsoft codec - I couldn't get good quality out of Huffyvu or any other I tried.

Unfortunately, it took me a couple of months of trying and researching and upgrading to get captures that lose maybe only 10 frames in an hour.

[Jeomite]

It's not your hardware, it's Windows XP. It doesn't use DMA for your hard drives (it says 'use DMA only if available' in the device manager). It never uses DMA I found this out by dual booting with WIN98. Under WIN98 using a DMA-enabled HD, I captured @ 640x480 using Huffy with ZERO frames loss. Previously, on Windows XP, I captured @ 480x480 with Huffy and loss 10 frames per 5 minutes.

Here's a topic I posted a while ago:
http://www.vcdhelp.com/phpBB/viewtopic.php?topic=57087&forum=2


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I am capturing using a microsoft codec - I couldn't get good quality out of Huffyvu or any other I tried.
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How can you NOT get good quality from Huffy? It's LOSELESS meaning it's the same quality as if you used no compression. LOL. If you get bad quality results from Huffy, then your source for the capture is bad quality, not Huffy's fault. =|

<font size=-1>[ This Message was edited by: Jeomite on 2001-10-16 12:44:27 ]</font>

[fingernailX]

I capture straight to DIVX 4.01 in virtualdub in XP all the time 352 X 240 framesize, performance/quality set to medium, bitrate at either 900 or 1500 depending on 1 or 2 cd capture, audio set to cd quality wav with a handful of dropped frames per 2 hours of video. I use cdex (lame engine) to encode the audio to a riff wav mp3 and use virtualdub to remux the audio. The quality for the time spent can't be beat. For any video capture you have to tweak your system and setup. DMA has to be enabled, the hard drive defraged, crap out of your systray etc....
Check out this page for details http://www.geocities.com/lukesvideo/highrescapvdub.html

[Frisco]

Jeomite,

I don't know what to tell you, but Huffyvu has not provided good results for me, and this is with good source.

Don't know why, don't care either.

[Shabubu]

If WinXP is still as similar to Win2k as it should be you can activate DMA with a reg hack, easiest way to do it is to get XTeq setup (xteq.com i think), there under the hardware section is the setting to enable uDMA

[roel]

Thanx for all the tips. I installed a second OS now: Win98.
I tried to capture with this OS, but when I want to select a codec for compression there aren't any codecs in the list. I installed DivX Codec 4.01 and Huffyuv. Where are they????? What am I doing wrong???

[Jeomite]

roel,
Make sure you installed Huffy in WIN98 too, not just WINXP. Meaning you should have installed Huffy TWICE. =|

[henriQ]

Excuse me, but i think there's also a LITTLE detail that should be taken into account:
The splendid (if not a bit overfinicky) VDub will not work
on Win2K and/or WinXP (the latter being nothing more than
the 1st desguised as a clown and provided with extra gadgets
to impress gullible audiences).
If you're stuck in VDub (as i am) you'll have to install the WDM wrapper provided by Luke's Video (w3.geocities), if not try also AT2000 (mpegx.com).
Good Luck.