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D3D12_VIDEO_ENCODER_PICTURE_CONTROL_CODEC_DATA_H264_REFERENCE_PICTURE_LIST_MODIFICATION_OPERATION structure (d3d12video.h)

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Represents a picture list modification operation for H264 video encoding.

Syntax

typedef struct D3D12_VIDEO_ENCODER_PICTURE_CONTROL_CODEC_DATA_H264_REFERENCE_PICTURE_LIST_MODIFICATION_OPERATION {
  UCHAR modification_of_pic_nums_idc;
  UINT  abs_diff_pic_num_minus1;
  UINT  long_term_pic_num;
} D3D12_VIDEO_ENCODER_PICTURE_CONTROL_CODEC_DATA_H264_REFERENCE_PICTURE_LIST_MODIFICATION_OPERATION;

Members

modification_of_pic_nums_idc

Together with abs_diff_pic_num_minus1 or long_term_pic_num specifies which of the reference pictures are re-mapped.

abs_diff_pic_num_minus1

Specifies the absolute difference between the picture number of the picture being moved to the current index in the list and the picture number prediction value.

long_term_pic_num

Specifies the long-term picture number of the picture being moved to the current index in the list.

Remarks

For more information, refer to H264 specification for more details: section 7.4.3.1 "Reference picture list modification semantics". .

Requirements

Requirement Value
Minimum supported client Windows Build 22000
Minimum supported server Windows Build 22000
Header d3d12video.h