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Unofficial VirtualDub Support Forums > Codec Discussion > No Video Codecs Available At All

Posted by: Svuppe Jun 16 2007, 08:55 AM

Hi. I have just switched from XP to Vista, and am reinstalling all my software. Now I am trying to get VirtualDub up and running. This seems quite hard. I got the newest versions (both 1.6.19 and 1.7.2), but I can't see any video codecs. Going into full processing mode and selecting Compression..., the only option I get is Uncompressed RGB/YCbCr. And that is not funny. I should have at least DV and Xvid codecs installed, and VirtualDub can read videos in these formats without problems. Looking on the audio side, there are several codecs available. I then installed the newest Vista Codec Pack, and while I got even more audio codecs, I still don't see anything but the Uncompressed option at the video codec selector. What do I do (apart from going back to XP)? Please help.

Posted by: foxidrive Jun 16 2007, 04:49 PM

There was a bug in XP - see if it was bequeathed to Vista - please tell us if that is the case. CODE DeXT Senior Member Registered: Mar 2002 Location: Spain Posts: 293    Dissappearing CODECs in XP: FIX!! Well I discovered this some weeks ago but only published it in a spanish forum (www.peque.org). As you know, seems there is a 'bug' in XP, perhaps related to DivX 4 and up, which causes CODECs "dissappearing", so you cant install any new CODEC and the only solution being format and reinstall. The fact is, I discovered what causes this and how to fix it without the need to reinstall everything again. The procedure is as follows: 1. Search the followind Key in the registry: [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Drivers32] 2. You'll see a list of values containing FOURCC references and CODECs, such as: "VIDC.I420"="msh263.drv" "VIDC.IYUV"="iyuv_32.dll" "vidc.iv50"="ir50_32.dll" "msacm.l3acm"="D:\WINXP\System32\l3codeca.acm" "vidc.DIV3"="DivXc32.dll" "vidc.DIV4"="DivXc32f.dll" "msacm.divxa32"="DivXa32.acm" "vidc.DIVX"="DivX.dll" "vidc.BT20"="" Look at the empty one (vidc.BT20). Search empty values like this one and delete 'em (they are useless). 3. Enjoy your full list of CODECs again!! The fun part is, seems no one was able to discover this even on the DivX official forum where there have been lots of requests for this subject. I did it with Sysinternals' RegMon utility. VDub reported an OVERFLOW error while enumerating the CODEC list so this was easy to track down. Hope you find it useful. And if anyone wishes to publish it in a FAQ, just do it. Regards, DeXT

Posted by: Svuppe Jun 16 2007, 06:17 PM

Yes, yes, YES. You are the man I checked the registry, but there wasn't any empty entries there. However, I searched the entire registry, and I found an empty one in [HKEY_CURRENT_USER\Software\Microsoft\Windows NT\CurrentVersion\DRIVERS32] called "vidc.uldx"="" And with that one removed, everything works perfectly. Thank you very much.

Posted by: foxidrive Jun 17 2007, 04:20 AM

Wonderful. Thanks for the detailed feedback too, that will help others who stumble with the same issue.

Posted by: rjisinspired Jun 21 2007, 09:45 PM

Does this technique matter with wav entries? I have wav1 through wav9. wav1 and wav2 have "wdmaud.drv" while wav3 through wav9 are empty. It seems to me that these empty keys could be deleted

Posted by: jetski Jul 3 2007, 11:42 AM

Annoyingly, I have had two capture problems for months and months, this being one of them. I managed to fix the other, but this problem remains. As everyone else does, I go to capture, and go to choose the type of compression, and the list is blank. But then I discovered the Huffyuv codec, and installed that, and then the list has Uncompressed (UYVY) and Huffyuv. But the Huffyuv codec is too large to practically capture 2 hours on limited disk space. I ideally wanted to choose the Panasonic DV codec, which wasn't there. I tried everything I could think of: deleting blank entries in the registry didn't work, because there were none; I tried different programs (it appears to be independent of program); I tried installing different versions of video driver and WDM capture driver, and none caused the codec list to un-disappear; I tried reinstalling Windows XP several times in a row to try to get it working, to no avail; and some other things I can't think of now. I'm running out of things to try. Please help!! I'm using Win XP, Virtualdub 1.6.17 (slightly old), GeForce 4800Ti VIVO. And it used to work about a year (or more) ago too...

Posted by: Kymmy Aug 13 2007, 04:02 PM

I have the vanishing codec issue in Vista 64 Ultimate. The latest stable and experimental AMD64 versions of Virtualdub only find a couple of Intel and Microsoft codecs, where as both of the 32bit versions finds all installed codecs. Have checked the registry entry bug as in the previous posts but have no empty entries. Can anyone help as I'd like to use the 64 bit versions instead of the 32 bit ThanX Kymmy

Posted by: phaeron Aug 13 2007, 08:00 PM

Not the same problem -- 64-bit apps can't use 32-bit codecs.

Posted by: Kymmy Aug 13 2007, 08:19 PM

QUOTE (phaeron @ Aug 13 2007, 08:00 PM) Not the same problem -- 64-bit apps can't use 32-bit codecs. Ahhh. I learn something new every day. Thanks for the answer Now is there a supply of codecs (mainly Divx and Xvid encoding/decoding) for 64 bit OS's online anywhere? Kymmy

Posted by: MingoDynasty Aug 18 2007, 02:31 AM

Yeah same for me. I'm running Vista Ultimate 64 bit and there's only 4 video codecs to choose from. Is there a place where I can find 64 bit version of Divx codec? Also, the Fraps codec FPS1 doesn't seem to be picked up by VirtualDub either. Lastly, I can play everything just fine through Windows Media Player, divx and Fraps and all, so why doesn't VirtualDub recognize the codecs

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