Media Foundation and DirectShow tips, gotchas and code bits

This blog is dedicated to assisting fellow Software Engineers who are integrating Microsoft’s audio and video technologies into their software.

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  • Blog Post: Using the WM Encoder to Protect Existing Content with WM DRM

    One of the things that a lot of DRM savvy CDNs are doing is to use WM Encoder to add WM DRM to their content without actually re-encoding. This is basically a copy operation from the input file (WMV) to an output file (WMV). The samples are never decompressed but rather passed directly through the Encoder...
  • Blog Post: WMRM SDK 10.1.2 best practice sample code

    I wrote this sample code a while back to show how to validate the latest individualization version when using predelivery. Here are a few tricks that you need to do to make this work. Namely, you need to parse the “ClientInfo” XML fragment the hard way. This sample code shows you how to do...
  • Blog Post: Adding CRL data to WMRM SDK 10.1.2 based scripts

    UPDATE: The code referenced on this page is written in ASP / VB Script. I recently created a complete code sample that does everything this code does and more. I would recommend that you check it out by going here:
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