VkVideoEncodeH264ReferenceListsInfoEXT(3)

# VkVideoEncodeH264ReferenceListsInfoEXT(3) Manual Page

## Name

VkVideoEncodeH264ReferenceListsInfoEXT - Structure specifies H.264 reference frame lists

Loading… please wait.

## C Specification

The VkVideoEncodeH264ReferenceListsInfoEXT structure representing reference lists is defined as:

    // Provided by VK_EXT_video_encode_h264
    typedef struct VkVideoEncodeH264ReferenceListsInfoEXT {
        VkStructureType                                      sType;
        const void*                                          pNext;
        uint8_t                                              referenceList0EntryCount;
        const VkVideoEncodeH264DpbSlotInfoEXT*               pReferenceList0Entries;
        uint8_t                                              referenceList1EntryCount;
        const VkVideoEncodeH264DpbSlotInfoEXT*               pReferenceList1Entries;
        const StdVideoEncodeH264RefMemMgmtCtrlOperations*    pMemMgmtCtrlOperations;
    } VkVideoEncodeH264ReferenceListsInfoEXT;

## Members

- `sType` is the type of this structure.

- `pNext` is `NULL` or a pointer to a structure extending this structure.

- `referenceList0EntryCount` is the number of reference pictures in reference list L0 and is identical to `StdVideoEncodeH264SliceHeader`::`num_ref_idx_l0_active_minus1` + 1.

- `pReferenceList0Entries` is a pointer to an array of `referenceList0EntryCount` VkVideoEncodeH264DpbSlotInfoEXT structures specifying the reference list L0 entries for the current picture. The entries provided must be ordered after all reference list L0 modification operations are applied (i.e. final list order). The entries provided must not reflect decoded picture marking operations in this frame that are applicable to references; the impact of such operations must be reflected in future frame encode commands. The slot index in each entry must match one of the slot indexes provided in the `pReferenceSlots` of the parent VkVideoEncodeInfoKHR structure.

- `referenceList1EntryCount` is the number of reference pictures in reference list L1 and is identical to `StdVideoEncodeH264SliceHeader`::`num_ref_idx_l1_active_minus1` + 1.

- `pReferenceList1Entries` is a pointer to an array of `referenceList1EntryCount` VkVideoEncodeH264DpbSlotInfoEXT structures specifying the reference list L1 entries for the current picture. The entries provided must be ordered after all reference list L1 modification operations are applied (i.e. final list order). The entries provided must not reflect decoded picture marking operations in this frame that are applicable to references; the impact of such operations must be reflected in future frame encode commands. The slot index in each entry must match one of the slot indexes provided in the `pReferenceSlots` of the parent VkVideoEncodeInfoKHR structure.

- `pMemMgmtCtrlOperations` is a pointer to a `StdVideoEncodeH264RefMemMgmtCtrlOperations` structure specifying reference lists modifications and decoded picture marking operations.

## Description

Valid Usage (Implicit)

- VUID-VkVideoEncodeH264ReferenceListsInfoEXT-sType-sType
  `sType` must be `VK_STRUCTURE_TYPE_VIDEO_ENCODE_H264_REFERENCE_LISTS_INFO_EXT`

- VUID-VkVideoEncodeH264ReferenceListsInfoEXT-pNext-pNext
  `pNext` must be `NULL`

- VUID-VkVideoEncodeH264ReferenceListsInfoEXT-pReferenceList0Entries-parameter
  If `referenceList0EntryCount` is not `0`, `pReferenceList0Entries` must be a valid pointer to an array of `referenceList0EntryCount` valid VkVideoEncodeH264DpbSlotInfoEXT structures

- VUID-VkVideoEncodeH264ReferenceListsInfoEXT-pReferenceList1Entries-parameter
  If `referenceList1EntryCount` is not `0`, `pReferenceList1Entries` must be a valid pointer to an array of `referenceList1EntryCount` valid VkVideoEncodeH264DpbSlotInfoEXT structures

- VUID-VkVideoEncodeH264ReferenceListsInfoEXT-pMemMgmtCtrlOperations-parameter
  `pMemMgmtCtrlOperations` must be a valid pointer to a valid `StdVideoEncodeH264RefMemMgmtCtrlOperations` value

## See Also

VK_EXT_video_encode_h264, VkStructureType, VkVideoEncodeH264DpbSlotInfoEXT, VkVideoEncodeH264NaluSliceInfoEXT, VkVideoEncodeH264VclFrameInfoEXT

## Document Notes

For more information, see the Vulkan Specification

This page is extracted from the Vulkan Specification. Fixes and changes should be made to the Specification, not directly.

## Copyright

Copyright 2014-2022 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0