VLC does not support the audio or video format "undf"

I'm lost and not sure.(Discombobulated)

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VLC does not support the audio or video format "undf"

Post#1 » Fri Mar 18, 2016 8:05 am

Ok so I'm making this post because someone PM'd me about this problem instead of posting it here in the help section.
So I thought I would just copy it over here in hopes that it may also help others.

etimmy wrote:I keep getting this when I try to watch/d'load the links.
'No suitable decoder module:
VLC does not support the audio or video format "undf". Unfortunately there is no way for you to fix this."

Way wrote:VLC will play them just fine or should as it does for me.
Make sure VLC is up to date.

If after up dating VLC if you still can't play them then I would suggest next
you use a codec pack which will have more popular codecs
I use this http://shark007.net/
But you can use http://www.codecguide.com/download_kl.htm or http://www.cccp-project.net/
That is the top 3 IMO shark being my personal.

What ever you do don't install multiple codec packs as they will conflict with each other, and uninstall all codec packs before changing to another. You can only have 1 installed.

Posts: 18

Re: VLC does not support the audio or video format "undf"

Post#2 » Fri Mar 18, 2016 12:55 pm

What I should have mentioned in my PM (it was way late at night so my brain wasn't exactly sharp) was that I'm on Ubuntu 12.04 and VLC wouldn't update any further than where it was. I tried opening the file on Ubuntu 14.04 (where VLC was more up to date) but the problem was there too. The issue seems mostly to be on hi-def .mkv files.

I'd searched for a fix in the past w/out help; after my initial post, I finally found one that worked. For any other Linux users, here it is.

In your terminal, enter

sudo apt-add-repository ppa:strukturag/libde265
sudo apt-get update
sudo apt-get install vlc-plugin-libde265

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