C Specification

To apply dynamic controls to video decode or video encode operations, call:

// Provided by VK_KHR_video_queue
void vkCmdControlVideoCodingKHR(
    VkCommandBuffer                             commandBuffer,
    const VkVideoCodingControlInfoKHR*          pCodingControlInfo);

Parameters

  • commandBuffer is the command buffer to be filled by this function.

  • pCodingControlInfo is a pointer to a VkVideoCodingControlInfoKHR structure.

Description

Valid Usage (Implicit)
  • VUID-vkCmdControlVideoCodingKHR-commandBuffer-parameter
    commandBuffer must be a valid VkCommandBuffer handle

  • VUID-vkCmdControlVideoCodingKHR-pCodingControlInfo-parameter
    pCodingControlInfo must be a valid pointer to a valid VkVideoCodingControlInfoKHR structure

  • VUID-vkCmdControlVideoCodingKHR-commandBuffer-recording
    commandBuffer must be in the recording state

  • VUID-vkCmdControlVideoCodingKHR-commandBuffer-cmdpool
    The VkCommandPool that commandBuffer was allocated from must support decode, or encode operations

  • VUID-vkCmdControlVideoCodingKHR-renderpass
    This command must only be called outside of a render pass instance

  • VUID-vkCmdControlVideoCodingKHR-videocoding
    This command must only be called inside of a video coding scope

  • VUID-vkCmdControlVideoCodingKHR-bufferlevel
    commandBuffer must be a primary VkCommandBuffer

Host Synchronization
  • Host access to the VkCommandPool that commandBuffer was allocated from must be externally synchronized

Command Properties
Command Buffer Levels Render Pass Scope Video Coding Scope Supported Queue Types

Primary

Outside

Inside

Decode
Encode

See Also

Document Notes

For more information, see the Vulkan Specification

This page is extracted from the Vulkan Specification. Fixes and changes should be made to the Specification, not directly.

Copyright 2014-2022 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0