Developer Guide

Contents

Optimizing Media Pipelines

Media operations are ideal candidates for hardware acceleration because they are relatively large algorithms with well-defined inputs and outputs. Video processing hardware capabilities can be accessed via industry-standard frameworks, oneVPL, or low-level/operating system specific approaches like Video Acceleration API (VA-API) for Linux or Microsoft* DirectX* for Windows. Which path to choose depends on many factors. However, the basic principles like parallelization by multiple streams and maximizing data locality apply for all options.
The main differences between video processing and GPGPU work apply to all accelerator API options. Many typical GPGPU optimizations focus on optimizing how large grids of work are partitioned across multiple processing units. Hardware-accelerated media operations are implemented in silicon. They work in units of frames and usually work is partitioned by streams of frames.
Media optimization steps don’t match the GPGPU workflow described in other sections. However, they can be easily added before or after GPGPU work. Media steps will supply inputs to or take outputs from GPGPU steps. For example:
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Video streaming is prevalent in our world today. We stream meetings at work. We watch movies at home. We expect good quality. Taking advantage of this new media engine hardware gives you the option to stream faster, stream at higher quality and/or stream at lower power. This hardware solution is an important consideration for End-to-End performance in pipelines working with video data.

Product and Performance Information

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Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.