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. Intel Xeon E5-1680 v3 & E5-2687W v3 Compared To The Core i7 5960X On Linux
  2. Intel 120GB 530 Series SSD Linux Performance
  3. Btrfs/EXT4/XFS/F2FS RAID 0/1/5/6/10 Linux Benchmarks On Four SSDs
  4. AMD's Windows Catalyst Driver Remains Largely Faster Than Linux Drivers
Latest Linux Articles
  1. NVIDIA vs. Nouveau Drivers With Linux 3.18 + Mesa 10.4-devel
  2. Is The Open-Source NVIDIA Driver Fast Enough For Steam On Linux Gaming?
  3. Linux 3.18 File-System Performance Minimally Changed But Possible Regressions
  4. AMD Radeon Gallium3D Is Catching Up & Sometimes Beating Catalyst On Linux
Latest Linux News
  1. GTK+ Inspector Gains More Features Ahead Of GNOME 3.16
  2. Clang 3.6 Will Hopefully Have OpenMP Support
  3. A Go Front-End Could Soon Be Landing In LLVM
  4. Linux 3.18-rc6 Released, A Worrisome Regression Remains
  5. HandBrake 0.10 Brings H.265 & VP8 Encoders
  6. Gngr: A New Web Browser Focused On Privacy
  7. Linux 3.18 Kernel: Not Much Change With Intel Haswell Performance
  8. More File-System Tests Of The Linux 3.18 Kernel
  9. Using NVIDIA's NVENC On Linux With FFmpeg
  10. There's Talk Again About An "Open To The Core" Ubuntu Laptop
Latest Forum Discussions
  1. PulseAudio 6.0 Is Coming & Other Linux Audio Plans For The Future
  2. Debian Developer Resigns From The Systemd Maintainership Team
  3. Roadmap to Catalyst 14.10 ?
  4. Updated and Optimized Ubuntu Free Graphics Drivers
  5. Cant get working Kaveri APU - A10-7850k
  6. Script for Fan Speed Control
  7. Debian Init System Coupling Vote Results
  8. The Slides Announcing The New "AMDGPU" Kernel Driver