News: 0001584554

  ARM Give a man a fire and he's warm for a day, but set fire to him and he's warm for the rest of his life (Terry Pratchett, Jingo)

Basic HDR Support For AMD Radeon Accelerated Video Processing On Linux

([Radeon] 8 Minutes Ago Mesa VA)


David Rosca at AMD continues leading the efforts for improving the open-source Radeon video acceleration support under Linux with the Mesa Gallium3D code. This is especially important now that AMD is encouraging customers to no longer use the AMD Multimedia Framework (AMF) on Linux but resort to using VA-API and the Mesa multimedia capabilities instead.

Rosca merged to Mesa 25.3-devel a rework of the color conversion code for the Mesa Gallium3D video acceleration code. Notable is adding support for BT.2020 SMPTE240M and getting the changes into place for basic support for High Dynamic Range (HDR) video content when using video processing shaders.

The AMD engineer explained in the now-merged [1]merge request :

"This adds support for BT.2020 SMPTE240M, RGB->YUV support for all standards and color ranges (before only RGB full to BT709 YUV full/limited was supported) and improves accuracy with >8 bits formats.

Also implements transfer function and primaries conversions.

This enables basic support for HDR when using processing shaders."

This is predominantly work to the common Gallium3D VL code but the testing has been focused at least on the RadeonSI Gallium3D driver with AMD GPUs using Video Core Next (VCN).



[1] https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/37058


NEW YORK -- Publishers from all across the country met this week at the
first annual Book Publishers Assocation of America (BPAA) meeting. Many of
the booths on the showroom floor were devoted to the single most important
issue facing the publishing industry: fighting copyright violations. From
"End Reader License Agreements" to age-decaying ink, the anti-copying
market has exploded into a multi-million dollar enterprise.

"How can authors and publishers hope to make ends meet when the country is
rapidly filling with evil libraries that distribute our products for free
to the general public?" asked the chairman of the BPAA during his keynote
address. "That blasted Andrew Carnegie is spending all kinds of his own
ill-gotten money to open libraries in cities nationwide. He calls it
charity. I call it anti-competitive business practices hoping to bankrupt
the entire publishing industry. We must fight these anti-profit,
pro-copying librarians and put an end to this scourge!"

-- from the February 4, 1895 edition of the New York Democrat-Republican