andy vt's tools & blog

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  • Zmodo Security DVR JPEG Server - Obtuse OEM, but the price was right.

    I recently picked up a Zmodo security DVR system off of Woot, and while it works a well as I could expect given the camera quality and price point. Unfortunately since it doesn't support my HA system or Windows Phone (both reasonable deficiencies) OOTB it was more novel toy than useful tool. It's...
    Posted to andy vt's blog (Weblog) by babgvant on Sat, Oct 27 2012
  • Loading Unregistered COM objects with .NET

    COM is very convenient, but sometimes it isn't desirable (or possible) to register a component for use in an application. Geraint Davies provided a solution for C++ developers, but since I generally try to avoid writing unmanaged code it was necessary to figure out how to translate his e.g. into...
    Posted to andy vt's blog (Weblog) by babgvant on Wed, Nov 30 2011
  • EVRCapture

    EVRCapture is a POC application that demonstrates the following DirectShow concepts for working with capture devices: Use the PSI Parser filter to configure the MPEG-2 Demultiplexer both initially and as the media type changes Split output stream with for display and file capture Build a capture graph...
    Posted to andy vt's blog (Weblog) by babgvant on Mon, Nov 14 2011
  • FilterGraphSpy

    Ever want to debug (or just look at) a graph in an application you don't own? FilterGraphSpy uses some clever COM tricks to enable just that. Enjoy.
    Posted to andy vt's blog (Weblog) by babgvant on Wed, Jun 24 2009
  • Understanding Merit to Optimize Playback

    I’m going to assume some familiarity with DirectShow and how it works, but if miss that mark and don’t explain something that isn’t common knowledge please let me know and I’ll dig into it further. There is a ton of really good information about DirectShow on MSDN and other places, so I don’t want to...
    Posted to andy vt's blog (Weblog) by babgvant on Sun, Nov 30 2008
  • Scanning unsupported files for commercials

    Say you have a file that isn’t supported by Comskip or ShowAnalyzer that you’d like to automatically scan for commercials. There are a couple of reasons for this; either the codec isn’t supported or the container isn't (or both). Fortunately the approach to solving both issues is the same. In this...
    Posted to andy vt's blog (Weblog) by babgvant on Thu, Aug 7 2008
  • H.264 -> DVR-MS

    Struck me while I was out walking the dog last night that part of bringing DirectTV tuners to WMC is modifing the SBE to support H.264 video. If this is correct, this is great news for everyone looking to archive ATSC MPEG content in a smaller format.
    Posted to andy vt's blog (Weblog) by babgvant on Tue, Jan 8 2008
  • DSGraphEdit : a .NET version of GraphEdit

    Just found this: DSGraphEdit is a library to easily add functionality similar to Microsoft's venerable GraphEdit to your .NET applications. Most of the functionality has been recreated with a few new bells and whistles to aid in the debugging...
    Posted to Strictly for fun (Forum) by Coyote on Wed, Jan 2 2008
  • Update on Streaming TV / SBE Trouble

    It's been a month since I started looking at streaming tv b/w WMC PC's at first I was interested in it conceptually, but the more I dug into it the more it seemed like something that was very realistic given the tools / code available. I ended up discarding both approaches discussed in the earlier...
    Posted to andy vt's blog (Weblog) by babgvant on Tue, Dec 18 2007
  • Media Broker - Streaming TV

    Back in February I started thinking about what was the biggest missing piece of an all PC based Media Center solution. I got thinking about this again after a recent post by Charlie Owen about how they could better document Microsoft's approach to the "Connected Home". It's a great...
    Posted to andy vt's blog (Weblog) by babgvant on Sun, Nov 18 2007
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