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

DirectX Video Acceleration For MPlayer

Free Software

Published on 23 April 2011 10:27 PM EDT
Written by Michael Larabel in Free Software
6 Comments

Part of the beauty of open-source software is that anyone is free to work on whatever code they wish. For some developers this means working on open-source graphics drivers for old GPUs, for some it may be working on a game or desktop application, and for others it may mean bringing Microsoft DXVA support to open-source multi-media software. There's now a branch of MPlayer that supports Microsoft's DirectX Video Acceleration API.

On Gitorious is this project for bringing DXVA support over to MPlayer so that H.264/MPEG-4 AVX and VC-1 streams can be done on supportive GPUs and drivers. DXVA is only supported under the Microsoft Windows drivers.

GPU-based Linux video acceleration in MPlayer is already well supported with VA-API, VDPAU, XvMC, and X-Video being among the APIs being supported. VA-API and VDPAU are, of course, the premiere Linux video APIs that are capable of offloading most of the playback process to the graphics processor. Both do a splendid job and cover most of the hardware and drivers, while the Nouveau / Radeon open-source drivers are the only drivers lacking support for either API at the moment, but that will hopefully change soon in the Gallium3D world.

The proprietary Catalyst driver supports interfacing with VA-API applications when using the Splitted Desktop Systems' VA-API to XvBA translation library. X-Video Bitstream Acceleration is the native format AMD exposes by their binary Linux blob for exposing the UVD2/UVD3 engine. XvBA resembles Microsoft's DXVA, so this new MPlayer support may help out anyone interested in a native XvBA implementation for MPlayer, but there's no word of anyone acting on that at the moment.

It would have been fairly interesting if instead there was a VA-API to DXVA library so any VA-API supportive application could support Microsoft's video acceleration format under Windows, but instead, for anyone interested there's now a native DXVA implementation for MPlayer.

Besides Windows itself, DXVA is also used on Microsoft's Xbox 360 game console. DXVA has been around since the days of Windows 2000 but in Windows Vista/7 is DXVA 2.0 that is capable of accelerating more operations, including the video capturing process.

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. NVIDIA GeForce GTX 980: The Best GPU For Linux Gamers
  2. ROCCAT LUA: A Linux-Friendly Gaming Mouse
  3. Cheetah Mounts: The Affordable Way To Put Your TV On The Wall
  4. Scythe Mugen MAX
Latest Linux Articles
  1. Preview: Radeon Gallium3D Performance For CS:GO On Linux
  2. XWayland Linux Gaming Performance With GNOME Wayland On Fedora 21
  3. EXT4/Btrfs/XFS/F2FS Benchmarks On Linux 3.17
  4. Fedora 21 Alpha First Impressions: It's Great
Latest Linux News
  1. KDE Plasma 5.1 Now In Beta
  2. Systemd & Debian Were Most Popular In September
  3. Microsoft Announces... Windows 10 With A Start Menu
  4. Borderlands 2 Launches On Steam For Linux
  5. Debian Jessie Might Get Rid Of The kFreeBSD Port
  6. Fedora Might Try A New Scheduling Strategy For Its Releases
  7. AMD's Catalyst Working On A GLSL Shader Cache
  8. OpenMP 4.0 Offloading Is Closer For GCC 5
  9. Wayland Presentation Extension Added To Weston
  10. Intel Skylake Support Rolls Out To Mesa's DRM
Latest Forum Discussions
  1. Updated and Optimized Ubuntu Free Graphics Drivers
  2. Nero CD/DVD Burning Software On Linux Is Dead
  3. New Group Calls For Boycotting Systemd
  4. FSF Issues Statement On Shellshock Bash Vulnerability
  5. X.Org Women Outreach Program Only Turns Up Two Applicants So Far
  6. X.Org Is Looking For Some Female Help
  7. Advertisements On Phoronix
  8. NVIDIA Alerts Nouveau: They're Starting To Sign/Validate GPU Firmware Images