A Reverse-Engineered Tegra Video Decode Driver Steps Closer To Mainline
Written by Michael Larabel in NVIDIA on 11 October 2017 at 04:35 PM EDT. 9 Comments
NVIDIA --
A video decoder driver for the NVIDIA Tegra is closer to the mainline kernel, but is focused on the (older) Tegra 2 chips.

Dmitry Osipenko has been leading the charge to reverse-engineer video decoding support for NVIDIA Tegra SoCs and his tegra-vde driver continues to be revised for hopeful acceptance into the mainline Linux kernel.

This driver is initially proposed for the kernel's staging area and when paired with a libvdpau-tegra user-space driver written by Dmitry, is capable of providing accelerated video decoding for the Tegra 2 SoC. This video decode driver has been tested on devices like the Toshiba AC100 and Acer A500 though should work with any Tegra 2 (Tegra20) device.

The latest version of the tegra-vde driver published today can be found on the kernel mailing list while the user-space VDPAU driver for interfacing with tegra-vde can be found on GitHub under the grate-driver project.

While NVIDIA is more friendly towards open-source support with their newer Tegra SoCs with contributions to Nouveau and more, we haven't seen them do much in the space of open-source video acceleration aside from the VDPAU library itself being open-source albeit for desktop GPUs they are no longer pushing that as much as cuvid/nvdecode for the future.

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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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