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Unofficial VirtualDub Support Forums > Newbie Questions > Cannot Get Mp4 And Mov Plugins To Work


Posted by: HCA Mar 23 2014, 09:08 PM
I've been trying to get VirtualDub to open mp4s and movs, using the plugins found here: http://www.videohelp.com/tools/VirtualDub along with installing ffdshow (though I admit I have no idea what it does, other than someone said installing it fixed their problem).

I'm running Win7x64, and it put all the plugins in the plugins64 directory, but only the directshow one shows up in the "plugins" list (under "options"). I can open MP4 and MOV files, but all I get is a black screen saying "Missing Codec (AVC1)". Googling the error was no help at all.

I feel like I'm missing something obvious, but I cannot find any further instructions. Everything just says to download the files and put them in my plugins folder, nothing further.

Posted by: dloneranger Mar 23 2014, 09:46 PM
The list of plugins and mirrors is here http://forums.virtualdub.org/index.php?act=ST&f=7&t=19488

You need to match the version of virtualdub and the plugin
64bit plugins for 64bit virtualdub
32bit plugins for 32bit virtualdub

Directshow plugin uses directshow codecs installed on your pc
FFMPeg plugin uses no codecs as their built into it
Others use VFW and ACM codecs installed on your pc

From your error message you need an AVC1 codec
Depending on your plugin you'll need one of two different versions - directshow or vfw
FFDshow does both of those, so you could install that or try the FFMPeg plugin
http://ffdshow-tryout.sourceforge.net/download.php
If you install FFDShow, you need to open both of it's video configuration dialogs and enable h264/AVC
Then open virtualdub and try opening the file with the plugin of your choice



Posted by: HCA Mar 23 2014, 10:27 PM
I've got the 64 bit plugins in a folder called "plugins64", using the 64 bit version of virtualdub.

I've installed ffdshow, and in the "video decoder configuration", it lists the codec for h264/AVC as enabled.

Posted by: dloneranger Mar 23 2014, 11:46 PM
Ahh, dammit the 64bit version of ffdshow doesn't have vfw codecs so any plugin that uses vfw will need something else
There's x264vfw that should decode avc https://sourceforge.net/projects/x264vfw/files/?source=navbar

Directshow plugin should work if you have ffdshow enabled
FFMPeg should just work


Difficult to give more info as you're leaving out the things that are obvious to you eg 'all the plugins', which plugin give the error etc
From here, it's really hard to see your monitor ;-)

Basic explanation of plugins
download the same version of the plugin as the virtualdub you're using and put the contents of the .zip into the right plugins folder
start virtualdub
on the file menu-> open video file
click on the video you want to open to select it
change the 'files of type' dropdown to the plugin you want to use
click ok to load the video

Posted by: HCA Mar 24 2014, 04:18 PM
Thanks very much, it's the last step (using the dropdown to select the plugin) that I was missing!

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