#Windows media player 9 for windows me windows#
The Windows Media Video 9 encoder supports the following properties. To distinguish between Simple Profile and Main Profile, set the MFPKEY_DECODERCOMPLEXITYREQUESTED property. The following table shows the four-character codes (FOURCCs) that correspond to the categories of encoded output. The Windows Media Video encoder supports the following input media subtypes when it is acting as an MFT. The Windows Media Video encoder supports the following input media subtypes when it is acting as a DMO. If you obtain an IMFTransform interface on a video encoder, it behaves as an MFT.
Operating systemĪ Windows Media video encoder always behaves as a DMO.īy default, a Windows Media video encoder behaves as a DMO. The following table shows the conditions under which a video encoder behaves as a DMO or an MFT. InterfacesĪ video encoder object exposes the IMediaObject interface so that the object can be used as a DirectX Media Object (DMO), and it exposes the IMFTransform interface so that the object can be used as a Media Foundation Transform (MFT).Ī video encoder behaves as a DMO or an MFT depending on which interfaces you obtain and which version of Windows is running.
You can create an instance of the video encoder by calling CoCreateInstance. The class identifier (CLSID) for the Windows Media Video encoder is represented by the constant CLSID_CWMV9EncMediaObject. The encoder supports the following four categories of encoded output. The Windows Media Video 9 encoder encodes video streams.
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