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. A Walkthrough Of The New 32 System Open-Source Linux Benchmarking Test Farm
  2. Habey MITX-6771: Mini-ITX Board With Quad-Core J1900 Bay Trail
  3. OCZ Vector 150 SSD On Linux
  4. Noctua i4 CPU Cooler: Great For Cooling High-End LGA-2011v3 CPUs
Latest Linux Articles
  1. 17-Way Linux Graphics Card Comparison With Civilization Beyond Earth
  2. AMD Kaveri: Open-Source Radeon Gallium3D vs. Catalyst 14.12 Omega Driver
  3. 12-Way AMD Catalyst 14.12 vs. NVIDIA 346 Series Linux GPU Comparison
  4. AMD Catalyst 14.12 Omega Driver Brings Mixed Results For Linux Users
Latest Linux News
  1. Fedora Doesn't Yet Enable F2FS File-System Support
  2. XZ 5.2 Adds New Multi-Threaded Options
  3. Intel 2.99.917 X.Org Driver Released, 3.0 Release Finally Near
  4. Server-Side XCB Is Being Discussed For The X.Org Server
  5. Adreno A4xx Rendering With Freedreno Takes Shape
  6. Linux 3.19-rc1 Kernel Released Ahead Of Schedule
  7. X.Org Server 1.16.3 Released To Fix Security Issues
  8. Linux 3.19 Merge Window Closes Ahead Of Schedule
  9. MIPS R6 Architecture Now Supported By GCC
  10. LowRISC To Feature Tagged Memory & Minion Cores
Latest Forum Discussions
  1. FPS capped on Linux (AMD fglrx drivers)
  2. Maker3D - create your 3D RPG
  3. Need some hand holding with upgrading xserver
  4. Speeding up systemd networking service
  5. Major Performance Breakthrough Discovered For Intel's Mesa Driver
  6. Looking for an nVidia GPU, but not sure how well they are supported.
  7. Are there an app using HSA ?
  8. The New SuperTuxKart Looks Better, But Can Cause GPU/Driver Problems