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

The GStreamer, Cairo Video Hackfest Results

GNOME

Published on 22 November 2009 10:43 AM EST
Written by Michael Larabel in GNOME
4 Comments

Last month we talked about a hackfest to improve Linux video playback that came about after a GNOME developer began work on using Cairo/Pixman for raw video in GStreamer and looking at other ways to leverage hardware acceleration within this major open-source multimedia framework. This Linux video meeting started in Barcelona on Thursday and is ending today, with some accomplishments.

Some of the code that has been (and continues to be) worked on is merging YUV support into Cairo/Pixman, a GLX Multi-thread extension, merging gst-plugins-cairo, XRenderPutImage/XV to Pixmap support, VA-API support for GStreamer, and getting the GStreamer Cairo plug-in to work on the Nokia N900. Another proposal that came about this week was a libgstva.so abstraction library that would allow video acceleration support in GStreamer across back-ends for VA-API, VDPAU, XvBA, and other video acceleration APIs, rather than targeting a lone API. Simply supporting VA-API and VDPAU for hardware acceleration in GStreamer will be enough for most users.

Notes from this Linux video hackfest can be found on the FreeDesktop.org Wiki. Chris Wilson also just posted a blog entry about this hackfest as well. Chris shares that the GStreamer developers are excited about Cairo, but in order to properly support their requirements, Pixman will be picking up a JIT (Just-In-Time) compiler for generating optimized code to handle obscure color-space conversions, etc. Multi-threading was then brought up and to address the concerns of the GStreamer developers with regards to thread-safety, X11 needs to be using xcb and a new GLX extension is needed for OpenGL to allow more efficient multi-threading. Lastly, a release of Cairo 1.10 is being planned for January to allow some of this new Cairo work to land in the first round of 2010 Linux distribution updates.

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 Pentium G3258 On Linux
  2. SilverStone Precision PS10
  3. ASRock Z97 Extreme6
  4. Nouveau Re-Clocking Is Way Faster, Shows Much Progress For Open-Source NVIDIA
Latest Linux Articles
  1. KVM Benchmarks On Ubuntu 14.10
  2. X.Org Server 1.16 Officially Released With Terrific Features
  3. Ubuntu With Linux 3.16 Smashes OS X 10.9.4 On The MacBook Air
  4. Preview: Benchmarking CentOS 7.0 & Scientific Linux 7.0
Latest Linux News
  1. Intel Adds BPTC Texture Compression To Their Mesa Driver
  2. The Linux Kernel Bang-Bang Thermal Governor Is Banging
  3. NVIDIA Releases K1-Powered Shield Tablet & Controller
  4. Xen Project Announces Mirage OS 2.0
  5. Canonical Community Team Changes Announced For Ubuntu
  6. Raspberry Pi B+ ARM Debian Benchmarks
  7. Mozilla Unleashes Firefox 31 Web Browser
  8. GCC 5.0 Is Expected Next Year
  9. PHP5's Successor Might Be PHP7
  10. AMD "Hawaii" Open-Source GPU Acceleration Still Not Working Right
Latest Forum Discussions
  1. AMD "Hawaii" Open-Source GPU Acceleration Still Not Working Right
  2. Open-Source Radeon Performance Boosted By Linux 3.16
  3. In Road To Qt, Audacious Switches From GTK3 Back To GTK2
  4. Debian + Steam + r600
  5. Next-Gen OpenGL To Be Announced Next Month
  6. Ubuntu With Linux 3.16 Smashes OS X 10.9.4 On The MacBook Air
  7. Updated and Optimized Ubuntu Free Graphics Drivers
  8. AMD Publishes Open-Source Linux HSA Kernel Driver