Registered Extension Number

39

Revision

10

Extension and Version Dependencies

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

2023-03-06

IP Status

No known IP claims.

Contributors

  • Ahmed Abdelkhalek, AMD

  • George Hao, AMD

  • Jake Beju, AMD

  • Peter Fang, AMD

  • Ping Liu, Intel

  • Srinath Kumarapuram, NVIDIA

  • Tony Zlatinski, NVIDIA

  • Yang Liu, AMD

  • Daniel Rakos, RasterGrid

Description

This extension builds upon the VK_KHR_video_encode_queue extension by adding support for encoding elementary video stream sequences compliant with 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_NALU_SLICE_INFO_EXT

    • VK_STRUCTURE_TYPE_VIDEO_ENCODE_H264_PROFILE_INFO_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_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.

  • Revision 8, 2022-07-18 (Daniel Rakos)

    • Replace VkVideoEncodeH264RateControlStructureFlagBitsEXT bit enum with VkVideoEncodeH264RateControlStructureEXT enum

    • Rename VkVideoEncodeH264ProfileEXT to VkVideoEncodeH264ProfileInfoEXT

    • Rename VkVideoEncodeH264ReferenceListsEXT to VkVideoEncodeH264ReferenceListsInfoEXT

    • Rename VkVideoEncodeH264EmitPictureParametersEXT to VkVideoEncodeH264EmitPictureParametersInfoEXT

    • Rename VkVideoEncodeH264NaluSliceEXT to VkVideoEncodeH264NaluSliceInfoEXT

  • Revision 9, 2022-09-18 (Daniel Rakos)

    • Rename spsStdCount, pSpsStd, ppsStdCount, and pPpsStd to stdSPSCount, pStdSPSs, stdPPSCount, and pStdPPSs, respectively, in VkVideoEncodeH264SessionParametersAddInfoEXT

    • Rename maxSpsStdCount and maxPpsStdCount to maxStdSPSCount and maxStdPPSCount, respectively, in VkVideoEncodeH264SessionParametersCreateInfoEXT

  • Revision 10, 2023-03-06 (Daniel Rakos)

    • Removed VkVideoEncodeH264EmitPictureParametersInfoEXT

    • Changed member types in VkVideoEncodeH264CapabilitiesEXT and VkVideoEncodeH264ReferenceListsInfoEXT from uint8_t to uint32_t

    • Changed the type of VkVideoEncodeH264RateControlInfoEXT::temporalLayerCount and VkVideoEncodeH264RateControlLayerInfoEXT::temporalLayerId from uint8_t to uint32_t

    • Removed VkVideoEncodeH264InputModeFlagsEXT and VkVideoEncodeH264OutputModeFlagsEXT as we only support frame-in-frame-out mode for now

    • Rename pCurrentPictureInfo in VkVideoEncodeH264VclFrameInfoEXT to pStdPictureInfo

    • Rename pSliceHeaderStd in VkVideoEncodeH264NaluSliceInfoEXT to pStdSliceHeader

    • Rename pReferenceFinalLists in VkVideoEncodeH264VclFrameInfoEXT and VkVideoEncodeH264NaluSliceInfoEXT to pStdReferenceFinalLists

    • Removed the slotIndex member of VkVideoEncodeH264DpbSlotInfoEXT and changed it to be chained to VkVideoReferenceSlotInfoKHR

    • Replaced VkVideoEncodeH264ReferenceListsInfoEXT with the new Video Std header structure StdVideoEncodeH264ReferenceLists that also includes data previously part of the now removed StdVideoEncodeH264RefMemMgmtCtrlOperations structure

    • Added new capability flag VK_VIDEO_ENCODE_H264_CAPABILITY_DIFFERENT_REFERENCE_FINAL_LISTS_BIT_EXT

See Also

VkVideoEncodeH264CapabilitiesEXT, VkVideoEncodeH264CapabilityFlagBitsEXT, VkVideoEncodeH264CapabilityFlagsEXT, VkVideoEncodeH264DpbSlotInfoEXT, VkVideoEncodeH264FrameSizeEXT, VkVideoEncodeH264NaluSliceInfoEXT, VkVideoEncodeH264ProfileInfoEXT, VkVideoEncodeH264QpEXT, VkVideoEncodeH264RateControlInfoEXT, VkVideoEncodeH264RateControlLayerInfoEXT, VkVideoEncodeH264RateControlStructureEXT, 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 2014-2023 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0