VkVideoEncodeH264InputModeFlagBitsEXT(3)

# VkVideoEncodeH264InputModeFlagBitsEXT(3) Manual Page

## Name

VkVideoEncodeH264InputModeFlagBitsEXT - video encode H.264 input modes

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## C Specification

The `inputModeFlags` field reports the various commmand buffer input granularities supported by the implementation as follows:

    // Provided by VK_EXT_video_encode_h264
    typedef enum VkVideoEncodeH264InputModeFlagBitsEXT {
        VK_VIDEO_ENCODE_H264_INPUT_MODE_FRAME_BIT_EXT = 0x00000001,
        VK_VIDEO_ENCODE_H264_INPUT_MODE_SLICE_BIT_EXT = 0x00000002,
        VK_VIDEO_ENCODE_H264_INPUT_MODE_NON_VCL_BIT_EXT = 0x00000004,
    } VkVideoEncodeH264InputModeFlagBitsEXT;

## Description

- `VK_VIDEO_ENCODE_H264_INPUT_MODE_FRAME_BIT_EXT` indicates 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_H264_INPUT_MODE_NON_VCL_BIT_EXT` is not supported.

- `VK_VIDEO_ENCODE_H264_INPUT_MODE_SLICE_BIT_EXT` indicates a single command buffer must at least encode a single slice. Any non-VCL NALUs must be encoded using the same command buffer as the first slice of the frame if `VK_VIDEO_ENCODE_H264_INPUT_MODE_NON_VCL_BIT_EXT` is not supported.

- `VK_VIDEO_ENCODE_H264_INPUT_MODE_NON_VCL_BIT_EXT` indicates a single command buffer may encode a non-VCL NALU by itself.

An implementation must support at least one of `VK_VIDEO_ENCODE_H264_INPUT_MODE_FRAME_BIT_EXT` or `VK_VIDEO_ENCODE_H264_INPUT_MODE_SLICE_BIT_EXT`.

## See Also

VkVideoEncodeH264InputModeFlagsEXT

## 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 2014-2021 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0