Free DME & DFIR Resources

There is more Digital & Multimedia Evidence (DME) than any other type of evidence today.
Working together we've expedited tens of thousands of criminal investigations.  Learn more

Libavformat

  • That's a tall order, right?  VLC from VideoLAN.org has become the go-to media player for most, as it can play so many things that Windows Media Player won't, and it's free.  Well, how does it do that, play more than other players?  The Libavformat and Libavcodec libraries, the same ones created by and for the FFmpeg project (and so many other multimedia applications)

    VLC & DirectShow Filters

    DirectShow is one of Microsoft's multimedia frameworks, formerly known as ActiveMovie, which replaced Microsoft's earlier Video for Windows framework.  VLC supports DirectShow-based input sources through a module (not very well, IMO, though), but the default Windows version downloaded from VideoLAN cannot reference 32-bit DirectShow filters installed on your Windows PC for audio/video decoding (i.e. filters/codecs registered in your Windows Registry), as the default version downloaded is x64.

    As an example, a DCCTV video file exported from a GeoVision system to an AVI file may be using the proprietary GMP4 video codec. In order to play the video, you must install the GeoVision GMP4 codec necessary to decode the primary video stream; this is a DirectShow filter.  DirectShow filters can only be referenced by applications that can leverage DirectShow, which we've established, VLC x64 cannot. 

Smart Search

DME Resources Newsletter

Sign-up for the DME Resources"I may occasionally send an email" newsletter. Maybe quarterly? Semi-annually?

Well, what I can tell you is that your information will not be shared. See my Privacy Policy.

NOTE: Members of my site are NOT auto-subscribed or un-subscribed from this newsletter; they must manually Opt-In/Out.

Subscribe Today!

Who Doesn't Love Cookies?
DME Resources may place one or more Cookies on your computer. Cookies do not contain any personally identifying information, they allow me to customize my site based on your preferences. If you Decline cookies from my site, you may not be able to use all of the site's features.