VK_KHR_video_encode_intra_refresh

Other Extension Metadata

Last Modified Date

2025-03-28

IP Status

No known IP claims.

Contributors

• Ahmed Abdelkhalek, AMD
• Benjamin Cheng, AMD
• Srinath Kumarapuram, NVIDIA
• Tony Zlatinski, NVIDIA
• Ping Liu, Intel
• Daniel Rakos, RasterGrid
• Lynne Iribarren, Independent

Description

This extension builds upon the VK_KHR_video_encode_queue extension by enabling the application to perform intra refresh in video encode operations.

New Structures

• Extending VkPhysicalDeviceFeatures2, VkDeviceCreateInfo:
  • VkPhysicalDeviceVideoEncodeIntraRefreshFeaturesKHR
• Extending VkVideoCapabilitiesKHR:
  • VkVideoEncodeIntraRefreshCapabilitiesKHR
• Extending VkVideoEncodeInfoKHR:
  • VkVideoEncodeIntraRefreshInfoKHR
• Extending VkVideoReferenceSlotInfoKHR:
  • VkVideoReferenceIntraRefreshInfoKHR
• Extending VkVideoSessionCreateInfoKHR:
  • VkVideoEncodeSessionIntraRefreshCreateInfoKHR

New Enums

• VkVideoEncodeIntraRefreshModeFlagBitsKHR

New Bitmasks

• VkVideoEncodeIntraRefreshModeFlagsKHR

New Enum Constants

• VK_KHR_VIDEO_ENCODE_INTRA_REFRESH_EXTENSION_NAME
• VK_KHR_VIDEO_ENCODE_INTRA_REFRESH_SPEC_VERSION
• Extending VkStructureType:
  • VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VIDEO_ENCODE_INTRA_REFRESH_FEATURES_KHR
  • VK_STRUCTURE_TYPE_VIDEO_ENCODE_INTRA_REFRESH_CAPABILITIES_KHR
  • VK_STRUCTURE_TYPE_VIDEO_ENCODE_INTRA_REFRESH_INFO_KHR
  • VK_STRUCTURE_TYPE_VIDEO_ENCODE_SESSION_INTRA_REFRESH_CREATE_INFO_KHR
  • VK_STRUCTURE_TYPE_VIDEO_REFERENCE_INTRA_REFRESH_INFO_KHR
• Extending VkVideoEncodeFlagBitsKHR:
  • VK_VIDEO_ENCODE_INTRA_REFRESH_BIT_KHR

If VK_KHR_video_encode_av1 is supported:

• Extending VkVideoEncodeAV1CapabilityFlagBitsKHR:
  • VK_VIDEO_ENCODE_AV1_CAPABILITY_COMPOUND_PREDICTION_INTRA_REFRESH_BIT_KHR

If VK_KHR_video_encode_h264 is supported:

• Extending VkVideoEncodeH264CapabilityFlagBitsKHR:
  • VK_VIDEO_ENCODE_H264_CAPABILITY_B_PICTURE_INTRA_REFRESH_BIT_KHR

If VK_KHR_video_encode_h265 is supported:

• Extending VkVideoEncodeH265CapabilityFlagBitsKHR:
  • VK_VIDEO_ENCODE_H265_CAPABILITY_B_PICTURE_INTRA_REFRESH_BIT_KHR

Version History

• Revision 1, 2025-03-28 (Daniel Rakos)
  • Internal revisions