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Asked: 2026-05-31T22:50:06+00:00

According the decoder sample in Windows SDK, I realize myself decoder MFT, but there

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According the decoder sample in Windows SDK, I realize myself decoder MFT, but there is one question about third-party MFT. I register a amr codec MFT, debug with windows sample code), connect the topology manually, it can play normally. But if I run windows media player, it doesn’t play the file include amr codec.

What should I do? Windows media player can call my codec MFT automatically.

Other question is about MERIT like directshow.

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1 Answer

  1. Editorial Team

    Are you registering your MFT with MFTRegister as MSDN suggests?

    Registering MFTs

    When you register a Media Foundation transform (MFT), two types of
    information are written to the registry:

    […]

    To create the MFT enumeration entries in the registry, call the
    MFTRegister function. You can include the following information about
    the MFT:

    […]

    This is the way to make your MFT discoverable by applications.

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