If the video is interlaced, the encoder performs automatic telecine (3:2 pull-down) detection. This round-up operation uses padding as needed. For interlaced video, width is rounded up to a multiple of 16, and height is rounded up to a multiple of 32. For progressive video, the output dimensions are rounded up to a multiple of 16 in both width and height.

If needed, the encoder rounds up the input video dimensions so that the output video dimensions match the MPEG requirements. When encoding MPEG-1 video, the encoder automatically sets the 1-bit constrained_parameters_flag code in the sequence header if all constraints are met. There is a delay of at least one GOP before the new settings take effect. It is possible to set properties while the filter graph is running. Set the remaining properties in any order. It is recommended to set properties in the following order: Must be the same as the input frame rate. PropertyĬODECAPI_GUID_AVEncMPEG1Video CODECAPI_GUID_AVEncMPEG2VideoĬODECAPI_GUID_AVEncCommonFormatUnSpecified (No format constraint) CODECAPI_GUID_AVEncCommonFormatDVD_V (DVD-Video) CODECAPI_GUID_AVEncCommonFormatVCD (Video CD)ĮAVEncCommonRateControlMode_CBR eAVEncCommonRateControlMode_PeakConstrainedVBR eAVEncCommonRateControlMode_QualityĮAVEncInputVideoSystem_Unspecified eAVEncInputVideoSystem_PAL eAVEncInputVideoSystem_NTSCġ8 frames (36 fields) for NTSC 15 frames (30 fields) otherwise.ĮAVEncVideoSourceScan_Interlaced eAVEncVideoSourceScan_ProgressiveĮAVEncVideoChromaResolution_420 (4:2:0) eAVEncVideoChromaResolution_SameAsSource The filter supports the following properties through ICodecAPI. No scalability or 4:2:2 support (only 4:2:0) It supports the following MPEG-2 profiles and levels: Profile The MPEG-2 Video Encoder can produce the following kinds of output: MEDIATYPE_Stream, MEDIASUBTYPE_MPEG2_VIDEO MEDIATYPE_Stream, MEDIASUBTYPE_MPEG2_PROGRAM MEDIATYPE_Stream, MEDIASUBTYPE_MPEG2_TRANSPORT MEDIATYPE_Video, MEDIASUBTYPE_MPEG2_VIDEOĬLSID_CMPEG2EncoderVideoDS (declared in wmcodecdsp.h) MEDIATYPE_Video, MEDIASUBTYPE_I420 MEDIATYPE_Video, MEDIASUBTYPE_IYUV MEDIATYPE_Video, MEDIASUBTYPE_RGB24 MEDIATYPE_Video, MEDIASUBTYPE_UYVY MEDIATYPE_Video, MEDIASUBTYPE_YUY2 MEDIATYPE_Video, MEDIASUBTYPE_YV12 IBaseFilter ICodecAPI IEncoderAPI IMediaSeeking IVideoEncoder This filter is not supported on IA-64-based platforms.

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