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

Will AMD's XvBA Beat Out NVIDIA's VDPAU?

AMD

Published on 06 July 2009 07:15 PM EDT
Written by Michael Larabel in AMD
71 Comments

Going back to last year we have exclusively been reporting on AMD's new HD video decoding interface, which is called XvBA. This interface for use with UVD2 GPUs is properly known as X-Video Bitstream Acceleration, which we have already described at length. XvBA itself has been supported by the proprietary ATI Catalyst Linux driver going back to Q4'08, but AMD has yet to release the documentations to this video API so developers of multimedia programs can implement this support. Of course, they also haven't released any patches themselves to add XvBA support to any programs, thereby rendering the current ATI Linux HD video decoding support as useless. Meanwhile, NVIDIA's VDPAU video API that was introduced around the same time continues to flourish with it being adopted by most Linux multimedia programs and it offers impressive results. Finally though it looks like AMD may be prepared to launch XvBA formally this summer.

Gwenolé Beauchesne is a developer working for a French company on various multimedia APIs who through agreements with AMD has been exposed to the X-Video Bitstream Acceleration API already. Gwenolé previously wrote the VA-API support for MPlayer / FFmpeg and even a VDPAU back-end for VA-API. Recently though he published Linux video decoding acceleration benchmarks.

While each system is comprised of different hardware beyond just the GPU, there are benchmarks from Intel's VA-API, NVIDIA's VDPAU, and AMD's XvBA. Testing was done with MPlayer and FFmpeg. On the AMD side he admitted to using an xvba-video package, which is currently not publicly available. For what these results are worth, XvBA on a Radeon HD 4870 it had lower CPU utilization when decoding VC-1 video clips over a system using VDPAU with a NVIDIA 8600GT. When it came to decoding an H.264 stream, the NVIDIA API reigned superior in this set of tests. The Intel Poulsbo system also performed admirably with VA-API. VA-API, XvBA, and VDPAU were all of course well ahead of the traditional X-Video performance.

Regardless of which video API delivers lower CPU utilization and power consumption, VDPAU is supported in MPlayer, FFmpeg, MythTV, Xine, VLC, XBMC, and other programs. If AMD is to simply release some documentation on XvBA, it will still be a while before seeing widespread support and adoption.

With Gwenolé Beauchesne now coming forward with XvBA results on Linux, could AMD soon be lifting the curtain on this video API? Let's hope to see support for it within MPlayer / FFmpeg in the near future or at least some documentation. It has been a number of months since there were any particularly exciting additions to the Catalyst Linux driver, so perhaps we soon will be seeing video playback improvements.

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 Linux Hardware Reviews
  1. Rosewill RS-MI-01: An Ultra Low-Cost Mini-ITX Chassis
  2. D-Link DCS-2330L HD Wireless Network Camera
  3. Gigabyte AM1M-S2H
  4. AMD's New Athlon/Semprons Give Old Phenom CPUs A Big Run For The Money
Latest Linux Articles
  1. AMD Catalyst 14.4 On Linux With Radeon R3 APU Graphics
  2. Red Hat Enterprise Linux 7.0 RC Benchmarks
  3. AMD Catalyst 14.4 Brings Few Linux Performance Improvements
  4. The Performance Of Fedora 20 Updated
Latest Linux News
  1. R600 Gallium3D Lands Many OpenGL Fixes
  2. LLVMpipe Gallium3D Now Exposes GLSL 3.30
  3. NGINX 1.6 Brings SPDY 3.1 & Other New Features
  4. Linux Foundation Announces A Core Infrastructure Initiative
  5. More Steam Linux Tests/Benchmarks Might Be Coming
  6. NVIDIA's Amazing Single-Board ARM Computer Might Be Delayed
  7. Fedora 21 To Get A Playground, New Features
  8. PC-BSD Is Developing Its Own Desktop Environment
  9. Valve Is Bringing VOGL To Windows & Working On Regression Tests
  10. Canonical Is Taking Over Linux 3.13 Kernel Maintenance
  11. Google Web Designer Is Now Natively Available On Linux
  12. Ubuntu 14.10 Is Codenamed The Utopic Unicorn
Latest Forum Discussions
  1. Linux Kernel Developers Fed Up With Ridiculous Bugs In Systemd
  2. HTPC-upgrade advice: AMD Richland A8-7600 or Kaveri A10-6700T ???
  3. What Else Would You Like To See On Phoronix This Spring?
  4. The GNOME Foundation Is Running Short On Money
  5. The Most Amazing OpenGL Tech Demo In 64kb
  6. Announcing radeontop, a tool for viewing the GPU usage
  7. New card. Open source drivers only.
  8. Script for Fan Speed Control