On 5 October 2011 19:22, Christian Robottom Reis <k...@linaro.org> wrote: > On Tue, Oct 04, 2011 at 02:42:22PM +0300, Ilias Biris wrote: >> - Decision on the multimedia content licenses is still pending - TSC to >> provide guidance > > This was approved today. > >> - libjpeg-turbo - oneiric upload, 11.09 natty version released to >> ppa:linaro-maintainers/overlay, implemented and submitted upstream >> (Blueprint: >> https://blueprints.launchpad.net/libjpeg-turbo/+spec/engr-mm-codec-jpeg-libstartup), >> benchmarking ltj with tjbench > > Is there any optimization (or indeed implementation) work being done > here by anyone in the MMWG itself (i.e. excluding Tom)?
here's some comments and a question... libjpeg-turbo is available in Oneiric, using v62 emulation. The performance improvements aren't significant at the moment. Debian/Ubuntu P are going to move to libjpeg8 by default making current package obsolete in the future. There's definitely some work coming to my mind: - package libjpeg-turbo with v8 compatibility mode enabled - test v8 emulation mode (it seems there's some functions marked as stubs, need to be confirmed) - run tjbench as part of LAVA tests to get comparisons (plain libjpeg vs ljt) - benchmark on Android platform What's the MM WG plan for ljt? Is there some blueprints in MM WG backlog for the items I mentioned? >> - Studying dma-buf scatter list feature - useless on snowball - snowball >> doesn't MMU on hw IP. Could use something like sg_is_last() or >> sg_is_chain() to say that there is only one piece of memory in the >> scatterlist, but the idea for using scatterlist is that the API should >> handle both cases - both devices that need contiguous and those that don't > > That's correct -- even if Snowball lacks an IOMMU for the hardware > codecs, it should be able to use CMA to get access to a contiguous area > and the dma-buf API should work for it. Who is working on this? > >> - Testing dts decoder with gst-ffmpeg on panda and i.mx53 (mkv + dts 6ch) > > Nice -- what are the results looking like? > >> Please feel free to ask any questions or let me know if you believe that >> something is missing > > Can you get the requirement laundry list polished up a little bit and > sent to the TSC for feedback if any topics there look worth pursuing > further into requirements? > -- > Christian Robottom Reis, Engineering VP > Brazil (GMT-3) | [+55] 16 9112 6430 | [+1] 612 216 4935 > Linaro.org: Open Source Software for ARM SoCs > > _______________________________________________ > linaro-dev mailing list > linaro-dev@lists.linaro.org > http://lists.linaro.org/mailman/listinfo/linaro-dev > -- Fathi Boudra Linaro Release Manager | Validation Project Manager Linaro.org | Open source software for ARM SoCs _______________________________________________ linaro-dev mailing list linaro-dev@lists.linaro.org http://lists.linaro.org/mailman/listinfo/linaro-dev
