VK_KHR_video_encode_feedback2

Other Extension Metadata

Last Modified Date

2026-02-04

IP Status

No known IP claims.

Contributors

• Sreerenj Balachandran, Amazon
• Ahmed Abdelkhalek, AMD
• Benjamin Cheng, AMD
• Aidan Fabius, Core Avionics & Industrial Inc.
• Ping Liu, Intel
• Srinath Kumarapuram, NVIDIA
• Tony Zlatinski, NVIDIA
• Daniel Rakos, RasterGrid

Description

This extension builds upon the VK_QUERY_TYPE_VIDEO_ENCODE_FEEDBACK_KHR queries introduced by the VK_KHR_video_encode_queue extension and extends the set of supported video encode feedback values with additional statistics about the encoded picture, including per picture partition feedback values.

New Structures

• Extending VkPhysicalDeviceFeatures2, VkDeviceCreateInfo:
  • VkPhysicalDeviceVideoEncodeFeedback2FeaturesKHR
• Extending VkQueryPoolCreateInfo:
  • VkQueryPoolVideoEncodePerPartitionFeedbackCreateInfoKHR
• Extending VkVideoCapabilitiesKHR:
  • VkVideoEncodeFeedback2CapabilitiesKHR

New Enums

• VkVideoEncodePerPartitionFeedbackFlagBitsKHR

New Bitmasks

• VkVideoEncodePerPartitionFeedbackFlagsKHR

New Enum Constants

• VK_KHR_VIDEO_ENCODE_FEEDBACK_2_EXTENSION_NAME
• VK_KHR_VIDEO_ENCODE_FEEDBACK_2_SPEC_VERSION
• Extending VkStructureType:
  • VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VIDEO_ENCODE_FEEDBACK_2_FEATURES_KHR
  • VK_STRUCTURE_TYPE_QUERY_POOL_VIDEO_ENCODE_PER_PARTITION_FEEDBACK_CREATE_INFO_KHR
  • VK_STRUCTURE_TYPE_VIDEO_ENCODE_FEEDBACK_2_CAPABILITIES_KHR
• Extending VkVideoEncodeFeedbackFlagBitsKHR:
  • VK_VIDEO_ENCODE_FEEDBACK_AVERAGE_QUANTIZATION_BIT_KHR
  • VK_VIDEO_ENCODE_FEEDBACK_INTER_PIXELS_BIT_KHR
  • VK_VIDEO_ENCODE_FEEDBACK_INTRA_PIXELS_BIT_KHR
  • VK_VIDEO_ENCODE_FEEDBACK_MAX_QUANTIZATION_BIT_KHR
  • VK_VIDEO_ENCODE_FEEDBACK_MIN_QUANTIZATION_BIT_KHR
  • VK_VIDEO_ENCODE_FEEDBACK_PICTURE_PARTITION_COUNT_BIT_KHR
  • VK_VIDEO_ENCODE_FEEDBACK_SKIPPED_PIXELS_BIT_KHR

Version History

• Revision 1, 2026-02-04 (Daniel Rakos)
  • Internal revisions