Milestone OpenCL Beta

Completed 3 years ago (05/18/13 15:54:35)

Builds provided

Windows XP with Service Pack 3 or later, 32 or 64-bit.

What is accelerated

  • OpenCL-accelerated "crop and scale" filter. Performance gains will only be seen if you are downscaling content, e.g. 1080p to 720p.
  • Hardware-accelerated decoding using DXVA2. Please note that this feature is Windows-only and only works on sources which we decode via Libav (DVD, Blu-ray and MPEG Transport/Program streams can't use hardware-accelerated decoding).

Future Builds

Will include x264's OpenCL-accelerated lookahead. We don't have an ETA for this yet, but it should be in the not so distant future.

How to use it

For the Windows GUI, there are two new checkboxes under the "Output Settings" section.

  • One for OpenCL
  • One for Hardware Decode.

Fro the command line interface, there are two new options:

-P Use OpenCL cropping and scale
-U Use UVD hardware-accelerated decoding via DXVA2

What is supported?

Any modern AMD or NVIDIA GPU that supports OpenCL 1.2 or later.
Please note that DXVA support is Windows-only and only works on sources which we decode via Libav (DVD, Blu-ray and MPEG Transport/Program streams can't use hardware-accelerated decoding).

The checkboxes will only be visible if the system is deemed capable and the input source is suitable.

Credits

Thanks to MulticoreWare and AMD for providing this patch!

Note: See TracRoadmap for help on using the roadmap.