1. Computers
  2. Display Drivers
  3. Graphics Cards
  4. Memory
  5. Motherboards
  6. Processors
  7. Software
  8. Storage
  9. Operating Systems


Facebook RSS Twitter Twitter Google Plus


Phoronix Test Suite

OpenBenchmarking.org

Nouveau Hardware-Based Video Support In Mesa

Mesa

Published on 13 September 2011 11:59 AM EDT
Written by Michael Larabel in Mesa
8 Comments

Due to being busy with XDC2011 Chicago, there was some news missed over the weekend: there's the Mesa user-space side support for Nouveau video decoding using a hardware-based NVIDIA video decoder.

Martin Peres mentioned this morning during his Nouveau talk at the 2011 X.Org Developers' Conference that during the reverse-engineering process they discovered a video decoder in several generations of hardware that NVIDIA isn't using. Thanks to some recent work, Nouveau can take advantage of MPEG1 and MPEG2 hardware video decoding (not using Gallium3D shaders for generic GPU video decoding) using this "PMPEG" support. MPEG4 hardware decoding support could come too, but there's at least four engines, different ISAs, and other complexities to handle by the limited development base. The decoder is exposed via XvMC.

This work was recently resurrected by Maarten Lankhorst back in July when he mentioned it on the Mesa mailing list. Maarten's work was finally committed to mainline Mesa on Saturday, 10 September. It was pushed by Younes Manton, the former GSoC developer that's been working on Gallium3D Nouveau support.

The Mesa side support was pushed in this fairly large commit. Video playback improvements to open-source graphics drivers is finally coming. Martin's demo of the Nouveau XvMC support was quite nice to illustrate the differences compared to just X-Video.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
Latest Articles & Reviews
  1. NVIDIA's Latest Maxwell Line-Up Against AMD With Catalyst On Linux
  2. Preliminary Tests Of Intel Sandy Bridge & Ivy Bridge vs. Broadwell
  3. AMD FX-8320E Performance On Linux
  4. Linux Compiler Benchmarks Of LLVM Clang 3.5 vs. LLVM Clang 3.6-rc1
  5. Intel Broadwell HD Graphics 5500: Windows 8.1 vs. Linux
  6. Linux Benchmarks Of NVIDIA's Early 2015 GeForce Line-Up
Latest Linux News
  1. NVIDIA Tegra DRM Driver Supports Atomic Mode-Setting In Linux 3.20
  2. Linux "GHOST" Vulnerability Hits Glibc Systems
  3. Linux Game Publishing Remains Offline, Three Years After The CEO Shakeup
  4. PlayStation 4 System Compiler Support Landing In LLVM
  5. Now-Closed KDE Vulnerabilities Remind Us X11 Screen Locks / Screensavers Are Insecure
  6. Vivaldi: A New Chromium-Powered, Multi-Platform Browser
  7. KDE Plasma 5.2 Officially Released
  8. Intel Broadwell On Linux Has Working OpenCL 1.2, VP8 Video Acceleration
  9. GParted 0.21 Brings ReFS Detection, EXT4 For RHEL5, Reiser4 For Linux 3.x
  10. Wine Staging Update Has Better CUDA Support, Driver Testing Framework
Most Viewed News This Week
  1. Windows 10 To Be A Free Upgrade: What Linux Users Need To Know
  2. LibreOffice 4.4 Is Coming Soon With New Features
  3. TraceFS: The Newest Linux File-System
  4. My Initial Intel Broadwell Linux Experience With The ThinkPad X1 Carbon
  5. Interstellar Marines On Linux With Catalyst: Bull S*#@
  6. Broadwell Linux Ultrabook Running MUCH Cooler Than Haswell
  7. Linux Users Upset By Chromium's Busted HiDPI Support
  8. Faster VP9 Decoding Is On The Horizon