Registered Extension Number

39

Revision

7

Extension and Version Dependencies

  • Requires Vulkan 1.0

  • Requires VK_KHR_video_encode_queue

  • This is a provisional extension and must be used with caution. See the description of provisional header files for enablement and stability details.

Contact

Other Extension Metadata

Last Modified Date

2022-04-06

IP Status

No known IP claims.

Contributors

  • Ahmed Abdelkhalek, AMD

  • Daniel Rakos, AMD

  • George Hao, AMD

  • Jake Beju, AMD

  • Peter Fang, AMD

  • Ping Liu, Intel

  • Srinath Kumarapuram, NVIDIA

  • Tony Zlatinski, NVIDIA

  • Yang Liu, AMD

Description

This extension allows applications to compress a raw video sequence by using the H.264/AVC video compression standard.

New Structures

New Enums

New Bitmasks

New Enum Constants

  • VK_EXT_VIDEO_ENCODE_H264_EXTENSION_NAME

  • VK_EXT_VIDEO_ENCODE_H264_SPEC_VERSION

  • Extending VkStructureType:

    • VK_STRUCTURE_TYPE_VIDEO_ENCODE_H264_CAPABILITIES_EXT

    • VK_STRUCTURE_TYPE_VIDEO_ENCODE_H264_DPB_SLOT_INFO_EXT

    • VK_STRUCTURE_TYPE_VIDEO_ENCODE_H264_EMIT_PICTURE_PARAMETERS_EXT

    • VK_STRUCTURE_TYPE_VIDEO_ENCODE_H264_NALU_SLICE_EXT

    • VK_STRUCTURE_TYPE_VIDEO_ENCODE_H264_PROFILE_EXT

    • VK_STRUCTURE_TYPE_VIDEO_ENCODE_H264_RATE_CONTROL_INFO_EXT

    • VK_STRUCTURE_TYPE_VIDEO_ENCODE_H264_RATE_CONTROL_LAYER_INFO_EXT

    • VK_STRUCTURE_TYPE_VIDEO_ENCODE_H264_REFERENCE_LISTS_EXT

    • VK_STRUCTURE_TYPE_VIDEO_ENCODE_H264_SESSION_PARAMETERS_ADD_INFO_EXT

    • VK_STRUCTURE_TYPE_VIDEO_ENCODE_H264_SESSION_PARAMETERS_CREATE_INFO_EXT

    • VK_STRUCTURE_TYPE_VIDEO_ENCODE_H264_VCL_FRAME_INFO_EXT

  • Extending VkVideoCodecOperationFlagBitsKHR:

    • VK_VIDEO_CODEC_OPERATION_ENCODE_H264_BIT_EXT

Version History

  • Revision 0, 2018-7-23 (Ahmed Abdelkhalek)

    • Initial draft

  • Revision 0.5, 2020-02-13 (Tony Zlatinski)

    • General Spec cleanup

    • Added DPB structures

    • Change the VCL frame encode structure

    • Added a common Non-VCL Picture Paramarameters structure

  • Revision 1, 2021-03-29 (Tony Zlatinski)

    • Spec and API updates

  • Revision 2, August 1 2021 (Srinath Kumarapuram)

    • Rename VkVideoEncodeH264CapabilitiesFlagsEXT to VkVideoEncodeH264CapabilityFlagsEXT and VkVideoEncodeH264CapabilitiesFlagsEXT to VkVideoEncodeH264CapabilityFlagsEXT, following Vulkan naming conventions.

  • Revision 3, 2021-12-08 (Ahmed Abdelkhalek)

    • Rate control updates

  • Revision 4, 2022-02-04 (Ahmed Abdelkhalek)

    • Align VkVideoEncodeH264VclFrameInfoEXT structure to similar one in VK_EXT_video_encode_h265 extension

  • Revision 5, 2022-02-10 (Ahmed Abdelkhalek)

    • Updates to encode capability interface

  • Revision 6, 2022-03-16 (Ahmed Abdelkhalek)

    • Relocate Std header version reporting/requesting from this extension to VK_KHR_video_queue extension.

    • Remove redundant maxPictureSizeInMbs from VkVideoEncodeH264SessionCreateInfoEXT.

    • Remove the now empty VkVideoEncodeH264SessionCreateInfoEXT.

  • Revision 7, 2022-04-06 (Ahmed Abdelkhalek)

    • Add capability flag to report support to use B frame in L1 reference list.

    • Add capability flag to report support for disabling SPS direct_8x8_inference_flag.

See Also

VkVideoEncodeH264CapabilitiesEXT, VkVideoEncodeH264CapabilityFlagBitsEXT, VkVideoEncodeH264CapabilityFlagsEXT, VkVideoEncodeH264DpbSlotInfoEXT, VkVideoEncodeH264EmitPictureParametersEXT, VkVideoEncodeH264FrameSizeEXT, VkVideoEncodeH264InputModeFlagBitsEXT, VkVideoEncodeH264InputModeFlagsEXT, VkVideoEncodeH264NaluSliceEXT, VkVideoEncodeH264OutputModeFlagBitsEXT, VkVideoEncodeH264OutputModeFlagsEXT, VkVideoEncodeH264ProfileEXT, VkVideoEncodeH264QpEXT, VkVideoEncodeH264RateControlInfoEXT, VkVideoEncodeH264RateControlLayerInfoEXT, VkVideoEncodeH264RateControlStructureFlagBitsEXT, VkVideoEncodeH264RateControlStructureFlagsEXT, VkVideoEncodeH264ReferenceListsEXT, VkVideoEncodeH264SessionParametersAddInfoEXT, VkVideoEncodeH264SessionParametersCreateInfoEXT, VkVideoEncodeH264VclFrameInfoEXT

Document Notes

For more information, see the Vulkan Specification

This page is a generated document. Fixes and changes should be made to the generator scripts, not directly.

Copyright

Copyright 2014-2022 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0