# VkVideoEncodeH265TransformBlockSizeFlagBitsKHR(3) Manual Page

## Name

VkVideoEncodeH265TransformBlockSizeFlagBitsKHR - Supported transform block sizes for H.265 video encode

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## C Specification

Bits which may be set in VkVideoEncodeH265CapabilitiesKHR::`transformBlockSizes`, indicating the transform block sizes supported by the implementation, are:

    // Provided by VK_KHR_video_encode_h265
    typedef enum VkVideoEncodeH265TransformBlockSizeFlagBitsKHR {
        VK_VIDEO_ENCODE_H265_TRANSFORM_BLOCK_SIZE_4_BIT_KHR = 0x00000001,
        VK_VIDEO_ENCODE_H265_TRANSFORM_BLOCK_SIZE_8_BIT_KHR = 0x00000002,
        VK_VIDEO_ENCODE_H265_TRANSFORM_BLOCK_SIZE_16_BIT_KHR = 0x00000004,
        VK_VIDEO_ENCODE_H265_TRANSFORM_BLOCK_SIZE_32_BIT_KHR = 0x00000008,
    } VkVideoEncodeH265TransformBlockSizeFlagBitsKHR;

## Description

- `VK_VIDEO_ENCODE_H265_TRANSFORM_BLOCK_SIZE_4_BIT_KHR` specifies that a transform block size of 4x4 is supported.

- `VK_VIDEO_ENCODE_H265_TRANSFORM_BLOCK_SIZE_8_BIT_KHR` specifies that a transform block size of 8x8 is supported.

- `VK_VIDEO_ENCODE_H265_TRANSFORM_BLOCK_SIZE_16_BIT_KHR` specifies that a transform block size of 16x16 is supported.

- `VK_VIDEO_ENCODE_H265_TRANSFORM_BLOCK_SIZE_32_BIT_KHR` specifies that a transform block size of 32x32 is supported.

## See Also

VK_KHR_video_encode_h265, VkVideoEncodeH265TransformBlockSizeFlagsKHR

## 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 2014-2025 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0