RADV Vulkan Video Adds Low-Latency Encode/Decode Options
([Radeon] 3 Hours Ago
RADV Vulkan Video Low-Latency)
- Reference: 0001623621
- News link: https://www.phoronix.com/news/RADV-Vulkan-Low-Latency
- Source link:
The Mesa Radeon "RADV" Vulkan driver has added new low-latency Vulkan Video encode/decode options for those seeking better performance.
The RadeonSI Gallium3D driver with its VA-API video acceleration support has [1]supported non-default low-latency options . The low-latency support with AMD Video Core Next (VCN) GPUs is for lowering the video encoding/decoding latency at the cost of higher GPU power usage and in turn the power consumption. AMD developers have now prepared similar low-latency video support for RADV's Vulkan Video usage.
[2]This merge adds new low-latency flags for Vulkan Video. Those interested can set the RADV_PERFTEST=lowlatencydec or RADV_PERFTEST=lowlatencyenc environment variables for setting the low-latency Vulkan Video mode, respectively. Or RADV_PERFTEST=lowlatencydec,lowlatencyenc to enable both.
These options were [3]merged yesterday to Mesa Git for Q2's Mesa 26.1 release.
[1] https://www.phoronix.com/news/RadeonSI-Low-Latency-Decode
[2] https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/40524
[3] https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/40524
The RadeonSI Gallium3D driver with its VA-API video acceleration support has [1]supported non-default low-latency options . The low-latency support with AMD Video Core Next (VCN) GPUs is for lowering the video encoding/decoding latency at the cost of higher GPU power usage and in turn the power consumption. AMD developers have now prepared similar low-latency video support for RADV's Vulkan Video usage.
[2]This merge adds new low-latency flags for Vulkan Video. Those interested can set the RADV_PERFTEST=lowlatencydec or RADV_PERFTEST=lowlatencyenc environment variables for setting the low-latency Vulkan Video mode, respectively. Or RADV_PERFTEST=lowlatencydec,lowlatencyenc to enable both.
These options were [3]merged yesterday to Mesa Git for Q2's Mesa 26.1 release.
[1] https://www.phoronix.com/news/RadeonSI-Low-Latency-Decode
[2] https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/40524
[3] https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/40524