FFmpeg Lands OpenCL Improvements
Written by Michael Larabel in Multimedia on 23 November 2017 at 11:48 AM EST. 4 Comments
MULTIMEDIA --
Besides a lot of NVDEC code landing for the next FFmpeg release, there's also been a number of OpenCL improvements that were just committed to this multimedia library's codebase.

The work landed yesterday includes removing an older and experimental OpenCL API while introducing a new OpenCL "hwcontext" implementation.

This in turn has introduced an OpenCL overlay filter and OpenCL unsharp mask filter.

Along with these new OpenCL filters and new hwcontext API there is support for VA-API to OpenCL mapping with the Intel Mesa driver and Beignet, QSV to OpenCL for the Intel Media SDK, DXVA2 to OpenCL mapping, D3D11 to OpenCL, and DRM to OpenCL. These mappings are about allowing for sharing/interoperability between the OpenCL compute API and the different display/graphics APIs for sharing of data/buffers.

These OpenCL improvements and possibly more CL work will be found in the next FFmpeg release, expected to be FFmpeg 3.5.

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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter or contacted via MichaelLarabel.com.

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