// d3d12umddi.h

typedef enum D3D12DDI_VIDEO_ENCODER_PICTURE_CONTROL_CODEC_DATA_H264_FLAGS_0080 {
  D3D12DDI_VIDEO_ENCODER_PICTURE_CONTROL_CODEC_DATA_H264_FLAG_0080_NONE,
  D3D12DDI_VIDEO_ENCODER_PICTURE_CONTROL_CODEC_DATA_H264_FLAG_0080_REQUEST_INTRA_CONSTRAINED_SLICES,
  D3D12DDI_VIDEO_ENCODER_PICTURE_CONTROL_CODEC_DATA_H264_FLAG_0099_0_REQUEST_NUM_REF_IDX_ACTIVE_OVERRIDE_FLAG_SLICE
} ;
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Windows Driver Kit DDI reference (ne-d3d12umddi-d3d12ddi_video_encoder_picture_control_codec_data_h264_flags_0080)

Description

The D3D12DDI_VIDEO_ENCODER_PICTURE_CONTROL_CODEC_DATA_H264_FLAGS_0080 enumeration specifies flags for the H.264-specific picture control properties.

Constants

`D3D12DDI_VIDEO_ENCODER_PICTURE_CONTROL_CODEC_DATA_H264_FLAG_0080_NONE`

No flags.

`D3D12DDI_VIDEO_ENCODER_PICTURE_CONTROL_CODEC_DATA_H264_FLAG_0080_REQUEST_INTRA_CONSTRAINED_SLICES`

Requests slice-constrained encoding for this frame, in which every slice in a frame is encoded independently from other slices in the same frame. Check D3D12DDI_VIDEO_ENCODER_CODEC_CONFIGURATION_SUPPORT_H264_FLAG_0080_INTRA_SLICE_CONSTRAINED_ENCODING_SUPPORT for support. This mode restricts the motion vector search range to the region box of the current slice; that is, motion vectors cannot be used outside the slice boundary.

`D3D12DDI_VIDEO_ENCODER_PICTURE_CONTROL_CODEC_DATA_H264_FLAG_0099_0_REQUEST_NUM_REF_IDX_ACTIVE_OVERRIDE_FLAG_SLICE`

Requests an override of the number of active reference indices for slice encoding. Added in Windows 11, version 24H2 (WDDM 3.2).

Remarks

See D3D12 video encoding for general information.

D3D12DDI_VIDEO_ENCODER_PICTURE_CONTROL_CODEC_DATA_H264_FLAGS_0080 - NtDoc