Architecture

oneVPL functions fall into the following categories:

DECODE

Functions that decode compressed video streams into raw video frames

ENCODE

Functions that encode raw video frames into compressed bitstreams

VPP

Functions that perform video processing on raw video frames

CORE

Auxiliary functions for synchronization

Misc

Global auxiliary functions

With the exception of the global auxiliary functions, oneVPL functions are named after their functioning domain and category. oneVPL exposes video domain functions.

oneVPL function name notation

Applications use oneVPL functions by linking with the oneVPL dispatcher library.

oneVPL dispatching mechanism

The dispatcher library identifies the hardware acceleration device on the running platform, determines the most suitable platform library for the identified hardware acceleration, and then redirects function calls accordingly.