This page is here to collect together proceedings from sessions as part of the 'Multimedia' track at the Natty UDS in Orlando, Florida.

Please add proceedings by doing the following:

• Add a new section with the name of the session.
• Add the outcomes of the session as a collection of bullet points. The goal of the proceedings is to really focus on decided outcomes, so please try to keep them crisp.

Thanks!

Proceedings

Optimize JPEG Decoding

• Agreed Major Usescases for JPEG Decoder: Browser (many small images), Image Gallery (Large Images)
• Selection of Software JPEG Decoder for optimization: IJG's Libjpeg

• JPEG Interface to be exposed: libJPEG (& OpenMAX possibly)

• Combining H/W & S/W Decoder: Decided to do it with simple GLUE layer over libJPEG.

• Runtime Selection of SoC specific execution path: Agreed to have only compile time support.
• ARM+NEON Optimizations Ideas: Agreed to not do SMP-aware codec, Agreed for doing no optimization for ARM11 and older processors.

Linaro Seeds for Multimedia WG 11.05

• If it makes sense, seed(s) could be based on the upcoming developer seed
• Research should be done to find and include tools for analysis of video/audio streams/content
• nfsclient needs to be included for easy access to test content
• Support for application logging needs to be included for those applications that have a logging feature
• There should be enough content for test / validation either as part of the image or accessible
• It was suggested that the landing teams should be the team to assemble demo materials for specific boards with the help of the Multimedia WG
• There should be enough support included to support automated testing both running and reporting results

Ubuntu One integration with Shotwell

• Make Ubuntu One's publish functionality available in Shotwell's publish options
• Make Ubuntu One's mobile photos available by default in Shotwell

Cairo backend and backend selection

https://blueprints.edge.launchpad.net/linaro-graphics-wg/+spec/multimedia-linaro-cairo-1105

• cairo is not the right place to handle runtime selection. It is up to the higher-level code to decide and use the best cairo facilities.
• We should implement a GLES2 backend, by preferably making the current experimental GL backend GL/GLES2 "agnostic". We should measure and publish the performance benefits.

Linaro Seeds for Graphics WG 11.05

Notes

• it might be useful to have a unity seed depending on the switch to compiz, OpenGLES
• developer tools should be included in a seed with all dev packages, compilers, build essentials, automake, enough to build gles, graphical applications
  • ideally this would be accomplished as some sort of base seed that could be included
• one concern about the need to be forward looking and keeping in sync with packages under development
  • one suggestion was that the seed(s) might be able to pull from an identified PPA(s) so daily seeds might be able to track closer to development for various toolkits
• alf suggestioned the following seed layout

  • x11-base + dev-base -> gfx-dev + gfx-packags

• There should be two flavours, dev and test/demo (meant to boot, run simple demo)
• There's a set of tools for examining performance of the gles stack allowing one to differentiate between GLES and toolkit performance,
• spandex - python based framework for gles benchmarks by nokia
• package selection
  • should include enough to build gles, applications and run them dev versions of mesa, x, freeglut, extention wrangler, dri experimental (for gallium)
  • meego-touch
  • would like something lightweight and small - watch the unity space as it evolves
  • could have multiple window managers etc installed but allow for easy switching for the purposes of development
  • cairo - testing backend might not be able to be installed, might need to be installed as part of the test process
  • cairo-perf
  • gtk-perf
  • mesa-demos (not yet packaged but should be as part of this cycle)
• size constraints
  • only a consideration for the purposes of a head (such as alip) which has a goal to fit into 64M flash
  • jammy noted that there are still soc specific headers and images in headless, need to be pulled out and put into hwpack
• automated test images should support automated test running and result reporting in general

Actions

• [action] connect with team defining development seed (tgall-foo)
• [action] need to push fix for germinate for mulitple PPAs (alf)
• [action] Jesse Barker to push graphics dev packages to tgall-foo
• [action] Jesse Barker will work gles performance tools list and supply input

Session Name

• Outcome
• Outcome
• Outcome