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PropertyĬODECAPI_AVDecVideoThumbnailGenerationMode The MPEG4 Part 2 Video decoder supports the following properties. To set properties on the MPEG4 Part 2 Video decoder, use the ICodecAPI interface or the IMFAttributes interface. Profileįor more information about profiles and levels, see the MPEG4 Part 2 specification (ISO/IEC 14496-2): Information technology - Coding of audio-visual objects - Part 2: Visual. The following table shows the profiles and levels, along with typical resolutions, supported by the MPEG4 Part 2 Video decoder. The MPEG4 specification also defines several levels, each of which specifies constraints on the output stream generated by an encoder. The Advanced Simple Profile supports all the tools of the Simple Visual Profile and, in addition, supports interlaced video, B-frames, quarter-pel motion compensation, additional quantization tables, and global motion compensation. Starting with Windows 10, the MPEG-4 Part 2 Video Decoder also supports H.263v2 (H.263+) which supports custom picture sizes. It also supports the short header mode, which is backward compatible with the H.263 baseline profile. It supports only Intra and Prediction pictures. The Simple Visual Profile supports basic transmission of low bit-rate video in progressive mode. In other words, the MPEG4 Part 2 Video decoder can decode streams that were encoded according to either the Simple Visual Profile or the Advanced Simple Profile. The MPEG4 Part2 Video Decoder supports two of those profiles: Simple Visual Profile and Advanced Simple Profile. The MPEG4 specification defines several profiles, each of which specifies the tools that an encoder can use to generate an encoded stream. You can obtain a pointer to the IMFRateControl or IMFRateSupport interface by calling MFGetService and passing the service identifier MF_RATE_CONTROL_SERVICE. You can obtain a pointer to the IMFQualityAdvise or IMFQualityAdvise2 interface by calling QueryInterface on the MFT. You can obtain a pointer to the IMFTransform interface by calling CoCreateInstance, and you can obtain a pointer to the IMFAttributes interface by calling IMFTransform::GetAttributes.

If you create an instance of the MPEG2 Part 2 Video decoder as an MFT, the decoder exposes the following interfaces. You can obtain an IMediaObject interface by calling CoCreateInstance, and you can obtain an ICodecAPI interface by calling QueryInterface. If you create an instance of the MPEG4 Part 2 Video decoder as a DMO, the decoder exposes the following interfaces.

MPEG2VIDEOINFO (Only the VIH2 portion of the header is used.).The MPEG4 Part 2 Video decoder accepts the following formats. The MPEG4 Part 2 Video decoder supports the following output media subtypes when it is acting as an MFT. The MPEG4 Part 2 Video decoder supports the following output media subtypes when it is acting as a DMO. The MPEG4 Part 2 Video decoder supports the following input media types. To create an istance of the decoder that behaves as a Media Foundation Transform (MFT), use the class identifier CLSID_CMpeg4sDecMFT. To create an instance of the decoder that behaves as a DirectX Media Object (DMO), use the class identifier CLSID_CMpeg4sDecMediaObject. You can create an instance of the MPEG4 Part 2 Video decoder by calling CoCreateInstance. The MPEG4 Part 2 Video decoder decodes video streams that were encoded according to the MPEG4 Part 2 standard.