Overview: Portable GPU processing
Portable GPU interfaces offer programmable processing or defined video operations under their own resource contracts.
OpenCL and general Vulkan processing are distinct from Vulkan Video's codec-operation interfaces. Each route needs suitable resources, picture representations and synchronization. Comparing them starts with the work required, rather than assuming one portable API exposes every fixed-function media engine.
OpenCL for media processing
OpenCL runs programmable work on supported compute devices through contexts, memory objects and command queues, with explicit capability and completion relationships for picture processing.Vulkan for media processing
Vulkan exposes device queues, image resources and programmable processing whose formats, synchronization and ownership determine how pictures move through a compatible media pipeline.Vulkan Video
Vulkan Video exposes supported codec operations through video profiles, queue capabilities, session resources and codec-specific picture parameters.