C Specification

To decode a frame, call:

// Provided by VK_KHR_video_decode_queue
void vkCmdDecodeVideoKHR(
    VkCommandBuffer                             commandBuffer,
    const VkVideoDecodeInfoKHR*                 pFrameInfo);

Parameters

  • commandBuffer is the command buffer to be filled with this function for decode frame command.

  • pFrameInfo is a pointer to a VkVideoDecodeInfoKHR structure.

Description

Valid Usage (Implicit)

  • VUID-vkCmdDecodeVideoKHR-commandBuffer-parameter
    commandBuffer must be a valid VkCommandBuffer handle

  • VUID-vkCmdDecodeVideoKHR-pFrameInfo-parameter
    pFrameInfo must be a valid pointer to a valid VkVideoDecodeInfoKHR structure

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

  • VUID-vkCmdDecodeVideoKHR-commandBuffer-cmdpool
    The VkCommandPool that commandBuffer was allocated from must support decode operations

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

  • VUID-vkCmdDecodeVideoKHR-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 Supported Queue Types

Primary

Outside

Decode

See Also

VK_KHR_video_decode_queue, VkCommandBuffer, VkVideoDecodeInfoKHR

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

Copyright 2014-2022 The Khronos Group Inc.

SPDX-License-Identifier: CC-BY-4.0