VkVideoEncodeH265InputModeFlagBitsEXT(3)

# VkVideoEncodeH265InputModeFlagBitsEXT(3) Manual Page

## Name

VkVideoEncodeH265InputModeFlagBitsEXT - Video encode H.265 input modes

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## C Specification

Bits which may be set in VkVideoEncodeH265CapabilitiesEXT::`inputModeFlags`, indicating the command buffer input granularities supported by the implementation, are:

    // Provided by VK_EXT_video_encode_h265
    typedef enum VkVideoEncodeH265InputModeFlagBitsEXT {
        VK_VIDEO_ENCODE_H265_INPUT_MODE_FRAME_BIT_EXT = 0x00000001,
        VK_VIDEO_ENCODE_H265_INPUT_MODE_SLICE_SEGMENT_BIT_EXT = 0x00000002,
        VK_VIDEO_ENCODE_H265_INPUT_MODE_NON_VCL_BIT_EXT = 0x00000004,
    } VkVideoEncodeH265InputModeFlagBitsEXT;

## Description

- `VK_VIDEO_ENCODE_H265_INPUT_MODE_FRAME_BIT_EXT` indicates that a single command buffer must at least encode an entire frame. Any non-VCL NALUs must be encoded using the same command buffer as the frame if `VK_VIDEO_ENCODE_H265_INPUT_MODE_NON_VCL_BIT_EXT` is not supported.

- `VK_VIDEO_ENCODE_H265_INPUT_MODE_SLICE_SEGMENT_BIT_EXT` indicates that a single command buffer must at least encode a single slice segment. Any non-VCL NALUs must be encoded using the same command buffer as the first slice segment of the frame if `VK_VIDEO_ENCODE_H265_INPUT_MODE_NON_VCL_BIT_EXT` is not supported.

- `VK_VIDEO_ENCODE_H265_INPUT_MODE_NON_VCL_BIT_EXT` indicates that a single command buffer may encode a non-VCL NALU by itself.

An implementation must support at least one of `VK_VIDEO_ENCODE_H265_INPUT_MODE_FRAME_BIT_EXT` or `VK_VIDEO_ENCODE_H265_INPUT_MODE_SLICE_SEGMENT_BIT_EXT`.

If `VK_VIDEO_ENCODE_H265_INPUT_MODE_SLICE_SEGMENT_BIT_EXT` is not supported, the following two additional restrictions apply for frames encoded with multiple slice segments. First, all frame slice segments must have the same pReferenceFinalLists. Second, the order in which slice segments appear in VkVideoEncodeH265VclFrameInfoEXT::`pNaluSliceSegmentEntries` or in the command buffer must match the placement order of the slice segments in the frame.

## See Also

VK_EXT_video_encode_h265, VkVideoEncodeH265InputModeFlagsEXT

## 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