"--codec dmo" to enable external codecs?

[pomidor]

I found this wiki which says that by starting VLC with the "--codec dmo" switch, I'll be able to see a config option to use system plugins.

https://wiki.videolan.org/Direct_Media_Object/

I followed the steps, but the "Other codecs" option does not show up.

Any idea how to get this option to become visible?

ps, I'm using VLC 3.0.0

[Jean-Baptiste Kempf]

It's in video codecs, now.

[briank619]

Hello,
So I started VLC 3.0.4 with the "--codec dmo" switch.
But when I look in Video Codecs (under Tools->Preferences -->ALL --Video Codecs, I still do not see a way to make the following setting as recommended by the Wiki.
Select Other codecs and tick Prefer system plugins over VLC

1) "Other codecs" does not appear under Video Codecs
2) There is no tick box for "Prefer system plugins over VLC" for any of the codecs listed under Video Codecs

I do see a text box named "Preferred Decoders List" on the general page for Video Codecs. But I'm not sure what (if anything) I should put there.

Can you help me to activate the DMO switch?

Thanks!
Brian

[robUx4]

It's not possible to select which codec is handled by what decoder.

[briank619]

It's not possible to select which codec is handled by what decoder.

Thank you for your quick reply. Very timely.

But I didn't understand your reply. Probably because I'm such a newbie at this.
What I want to do is tell VLC to use external CODECs (e.g., those available from Windows) instead of its internal CODECs. I thought that the "--codec dmo" switch would do that for me. But when I use the switch, I still don't see a preference setting called: "Prefer system plugins over VLC" as referred to in this article:
https://wiki.videolan.org/Direct_Media_Object/

My goal is to get VLC to use GeoVision's GAVC codec so that I can view a surveillance video created by GeoVision hardware. I've installed the GAVC code in Windows, and Windows Media Player now uses it to render the video. But WMP has very limited capability to zoom in or create a JPEG of a particular frame. VLC can do that for me if I can persuade it to use a system plugin. Which I can't.

Kind Regards,
Brian

[Rémi Denis-Courmont]

The VLC DMO plugin only supports Windows Media codecs (i.e. WMV and WMA); you cannot just enable it for any random codec.