VK_KHR_video_maintenance2

Other Extension Metadata

Last Modified Date

2024-10-14

IP Status

No known IP claims.

Contributors

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

Description

VK_KHR_video_maintenance2 adds a collection of minor video coding features, none of which would warrant an entire extension of their own.

The new features are as follows:

• Allow video coding control commands (such as video session reset) to be issued without the need for a bound video session parameters object for video decode operations that would otherwise require the use of video session parameters objects.
• Allow applications to specify codec-specific parameter sets inline for each decode operation instead of having to construct video session parameters objects.
• Require support for VK_VIDEO_ENCODE_RATE_CONTROL_MODE_DISABLED_BIT_KHR in all applicable video encode profiles.
• Provide additional guarantees on Video Std parameters that the encoder implementation will not override.

New Structures

• Extending VkPhysicalDeviceFeatures2, VkDeviceCreateInfo:
  • VkPhysicalDeviceVideoMaintenance2FeaturesKHR

If VK_KHR_video_decode_av1 is supported:

• Extending VkVideoDecodeInfoKHR:
  • VkVideoDecodeAV1InlineSessionParametersInfoKHR

If VK_KHR_video_decode_h264 is supported:

• Extending VkVideoDecodeInfoKHR:
  • VkVideoDecodeH264InlineSessionParametersInfoKHR

If VK_KHR_video_decode_h265 is supported:

• Extending VkVideoDecodeInfoKHR:
  • VkVideoDecodeH265InlineSessionParametersInfoKHR

New Enum Constants

• VK_KHR_VIDEO_MAINTENANCE_2_EXTENSION_NAME
• VK_KHR_VIDEO_MAINTENANCE_2_SPEC_VERSION
• Extending VkStructureType:
  • VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VIDEO_MAINTENANCE_2_FEATURES_KHR

If VK_KHR_video_decode_av1 is supported:

• Extending VkStructureType:
  • VK_STRUCTURE_TYPE_VIDEO_DECODE_AV1_INLINE_SESSION_PARAMETERS_INFO_KHR

If VK_KHR_video_decode_h264 is supported:

• Extending VkStructureType:
  • VK_STRUCTURE_TYPE_VIDEO_DECODE_H264_INLINE_SESSION_PARAMETERS_INFO_KHR

If VK_KHR_video_decode_h265 is supported:

• Extending VkStructureType:
  • VK_STRUCTURE_TYPE_VIDEO_DECODE_H265_INLINE_SESSION_PARAMETERS_INFO_KHR

If VK_KHR_video_decode_queue is supported:

• Extending VkVideoSessionCreateFlagBitsKHR:
  • VK_VIDEO_SESSION_CREATE_INLINE_SESSION_PARAMETERS_BIT_KHR

Version History

• Revision 1, 2024-10-14 (Daniel Rakos)
  • internal revisions