Virtual Dub Mod and MKV files

[Bunkaru]

Hi,

I kinda can't open MKV files in Virtual Dub Mod, could someone please tell me what codec or whatever I need to be able to do it ? If possible, with download link.

Thanks.

[Kariudo]

just use an avisynth script

if you can play the files in a regular media player (something not VLC) then you should be able to use DirectShowSource()

else, google ffmpegsource, download it and put the dll into avisynth's plugins folder
then make a script using ffmpegsource()

see this thread for more help

[Bunkaru]

Ah, I'm not very familiar with AviSynth scripts or similar stuff, actually I never even did any.

Isn't there a more simple solution ? From what Virtual Dub Mod's error message says, I thought that installing some codec would do.

This is what it says :

Couldn't locate decompressor for format 'ÿÿÿÿ' (unknown).
VirtualDub requires a Video for Windows (VFW) compatible codec to decompress video. DirectShow codecs, such as those used by Windows Media Player, are not suitable. Only 'Direct stream copy' is available for this video.

[Qyot27]

It's H.264, and H.264 in MKV can come in two different flavors - VFW (i.e. AVI mode = bad bad bad), and Native mode (the proper storage method, also used in MP4). While some VFW-H.264 encodes were released early on - and a few still do - the other 99% do the right thing and use Native mode.

VirtualDub (and VDubMod) can only use VFW-based solutions, end of story. VirtualDub does have import plugin support since like, 1.7.6 or something, but MKV is a minefield to support that way, and I've not played around too much with that stuff to say it.

So AviSynth is your only option. It simply acts as a proxy, telling VirtualDub that it's opening an AVI when AviSynth is controlling the rest of the process. And AviSynth has proper support for DirectShow, DGAVCDec, and FFmpeg based input of H.264 - the last two also being frame-accurate, with FFmpegSource supporting Native-mode MKV directly.

[Willen]

If you don't mind a little inaccuracy, use DirectShowSource via AviSynth in VirtualDubMod.

Start VDM and select File, then Open video file via AviSynth... from the menu.
Then change the Files of type: drop down to All files (*.*) and Template: to DirectShowSource.
Find your .MKV and open it.

[Bunkaru]

If you don't mind a little inaccuracy, use DirectShowSource via AviSynth in VirtualDubMod.

Start VDM and select File, then Open video file via AviSynth... from the menu.
Then change the Files of type: drop down to All files (*.*) and Template: to DirectShowSource.
Find your .MKV and open it.

This worked just great, thank you very much !