Alternative MediaFoundation support for NAudio using SharpDX for interop
Failed to load latest commit information.
NAudio.SharpMediaFoundation Initial Commit Feb 28, 2014
lib Initial Commit Feb 28, 2014


Alternative MediaFoundation support for NAudio using SharpDX for interop. Provides alternative implementations of the four main NAudio Media Foundation support classes/

  • SharpMediaFoundationReader
  • SharpMediaFoundationEncoder
  • SharpMediaFoundationResampler
  • SharpMediaFoundationTransform

A sample WPF application shows how they can be used in the same way that the standard .NET Media Foundation classes are used.

Benefits compared to using the standard NAudio classes:

  • Create a reader from a standard .NET stream
  • Encode to a standard .NET stream
  • Reader does not need to recreate its internal COM object when accessed from another thread
  • Probably performance is better (although see note below)

Currently this is using a custom (debug) build of SharpDX.dll and SharpDX.MediaFoundation.dll. Once a new release of SharpDX containing the enhancements for NAudio has been released, this project will be able to take a dependency on the NuGet SharpDX package, and itself be published as a NuGet package.


Currently you'll need to do your own build. Download the source and build it. Then reference all the following DLLs:

  • NAudio.dll
  • SharpDX.dll
  • SharpDX.MediaFoundation.dll
  • NAudio.SharpMediaFoundation.dll

It is built against .NET 3.5, and should work just fine with .NET 4, 4.5, 4.5.1 etc.