VkVideoEncodeH264EmitPictureParametersEXT(3)

# VkVideoEncodeH264EmitPictureParametersEXT(3) Manual Page

## Name

VkVideoEncodeH264EmitPictureParametersEXT - Structure specifies H.264 encode SPS NALU insertion parameters

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## C Specification

The `VkVideoEncodeH264EmitPictureParametersEXT` structure is defined as:

    // Provided by VK_EXT_video_encode_h264
    typedef struct VkVideoEncodeH264EmitPictureParametersEXT {
        VkStructureType    sType;
        const void*        pNext;
        uint8_t            spsId;
        VkBool32           emitSpsEnable;
        uint32_t           ppsIdEntryCount;
        const uint8_t*     ppsIdEntries;
    } VkVideoEncodeH264EmitPictureParametersEXT;

## Members

- `sType` is the type of this structure.

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

- `spsId` is the H.264 SPS ID for the H.264 SPS to insert in the bitstream. The SPS ID must match the SPS provided in `spsStd` of VkVideoEncodeH264SessionParametersCreateInfoEXT. This is retrieved from the VkVideoSessionParametersKHR object provided in VkVideoBeginCodingInfoKHR.

- `emitSpsEnable` enables the emitting of the SPS structure with id of `spsId`.

- `ppsIdEntryCount` is the number of entries in the `ppsIdEntries`. If this parameter is `0` then no pps entries are going to be emitted in the bitstream.

- `ppsIdEntries` is a pointer to an array of H.264 PPS IDs for the H.264 PPS to insert in the bitstream. The PPS IDs must match one of the IDs of the PPS(s) provided in `pPpsStd` of VkVideoEncodeH264SessionParametersCreateInfoEXT to identify the PPS parameter set to insert in the bitstream. This is retrieved from the VkVideoSessionParametersKHR object provided in VkVideoBeginCodingInfoKHR.

## Description

Valid Usage (Implicit)

- VUID-VkVideoEncodeH264EmitPictureParametersEXT-sType-sType
  `sType` must be `VK_STRUCTURE_TYPE_VIDEO_ENCODE_H264_EMIT_PICTURE_PARAMETERS_EXT`

- VUID-VkVideoEncodeH264EmitPictureParametersEXT-ppsIdEntries-parameter
  `ppsIdEntries` must be a valid pointer to an array of `ppsIdEntryCount` `uint8_t` values

- VUID-VkVideoEncodeH264EmitPictureParametersEXT-ppsIdEntryCount-arraylength
  `ppsIdEntryCount` must be greater than `0`

## See Also

VK_EXT_video_encode_h264, `VkBool32`, VkStructureType

## 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