What should you do when Windows Media Player not playing DVD? Of course, you can simply copy the error message to find troubleshooting. The maximum resolution allowed by the Windows Media Video 9 decoder is 4096x4096.When you play a DVD on the Windows Media Player in Windows 10/8, you should find the following error message, "Windows Media Player cannot play this DVD because there is a problem with the digital copy between your DVD drive, decoder, and video card". To query this property, use the IPropertyBag interface. For more information about draining an MFT, see Basic MFT Processing Model. If the value is VARIANT_TRUE, the decoder should be drained after a discontinuity. This property is used by the Windows Media Format runtime. Specifies whether the decoder should be drained. Simple Profile, Main Profile, Advanced Profile, Image. Specifies the post processing mode for the decoder. Specifies the number of threads that the decoder will use. Simple Profile, Main Profile, Advanced Profile, Image Read-only. Specifies whether the decoder supports frame interpolation. Specifies whether the decoder should use frame interpolation. Specifies the power level for the decoder. Simple Profile, Main Profile, Advanced Profile. Specifies whether the decoder will use DirectX video acceleration hardware, if available. Specifies whether the codec decodes interlaced video frames from the compressed stream as progressive frames. The Windows Media Video decoder supports the following properties. The Windows Media Video decoder supports the following output media subtypes when it is acting as an MFT. The Windows Media Video decoder supports the following output media subtypes when it is acting as a DMO. The following table shows the four-character codes (FOURCCs) that correspond to the categories of encoded input that are supported by the Windows Media Video decoder. ![]() If you obtain an IMFTransform interface on a video decoder, it behaves as an MFT.īeginning with Windows 7, the Windows Media Video decoder implements the IDMOQualit圜ontrol interface. Operating systemĪ Windows Media video decoder always behaves as a DMO.īy default, a Windows Media video decoder behaves as a DMO. The following table shows the conditions under which a video decoder behaves as a DMO or an MFT. InterfacesĪ video decoder 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 decoder 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 decoder by calling CoCreateInstance. The class identifier (CLSID) for the Windows Media Video decoder is represented by the constant CLSID_CWMVDecMediaObject. The encoder and decoder support the following four categories of encoded video. The Windows Media Video 9 decoder decodes video streams that were encoded by the Windows Media Video Encoder.
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