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  • Topic: multimedia X-vendor call

  • When: 1200 UTC

  • Where: linaro public conf line

  • Attendees:

    Name

    Email

    IRC Nick

    Role

    Alexander Sack

    asac (at) linaro (dot) org

    asac

    Linaro Tech Lead

    Alexandros Frantzis

    alexandros.frantzis (at) linaro (dot) org

    alf

    Linaro Software Engineer

    Benjamin Gaignard

    benjamin.gaignard (at) linaro (dot) org

    benjiG

    Linaro Multimedia Generalist (ST-Ericsson)

    Vishal Raj

    vishal.raj (at) linaro (dot) org

    vishal

    Linaro User Platform Engineer (ST-Ericsson)

    Rob Clark

    rob (at) ti (dot) com

    robclark

    multimedia (TI)

    Sachin Gupta

    sachin.gupta (at) linaro (dot) org

    Sachin

    Linaro Graphics/Multimedia Engineer (ST-Ericsson)

    Kan Hu

    kan.hu (at) linaro (dot) org

    Kan

    Linaro Multimedia Specialist (Freescale)

Agenda

  • Welcome
  • CELF report
  • gst omax consolidation
  • DRI2 xvideo extensions

Past Actions

Minutes

  • CELF report
    • gst android
    • gst consolidation
    • pulseaudio
  • gst 0.11/1.0 API/ABI break
    • Better handling of mmap'd buffers
    • No subclassing of buffer class. Extendable with metadata.
    • Buffer pool concept.
    • Experimental branch at the moment, details may change.
  • Pulseaudio
    • ACTION: Benjamin to contact engineer from Collabora to get Pulseaudio CELF presentation.
  • gst omax consolidation
    • Problems because of different requirements for buffers (physically contiguous, memcpy if needed)
    • Different allocation schemes (eg sink vs source).
    • Need for a mechanism to efficiently check if buffer is contiguous.
    • ST-E has a mechanism available in the gstreamer layer.
    • TI has a fast mechanism available in the omax layer (checks if buffer start address is in the range of reserved for physically contiguous buffers).
    • Better to "hide" it inside omax: no need for standardization.
    • ACTION: Sachin to check viability of putting mechanism for checking physically contiguous buffers inside omax.
    • ACTION: Sachin to FOSS out ST-E gst bits.
  • DRI2 extensions for XVideo
    • RAOF (Chris) can help.
  • v4l2 xorg driver

Actions

  • Benjamin to contact engineer from Collabora to get Pulseaudio CELF presentation.
  • Sachin to check viability of putting mechanism for checking physically contiguous buffers inside omax.
  • Sachin to FOSS out ST-E gst bits.

WorkingGroups/Middleware/Multimedia/Notes/2010-11-02 (last modified 2010-11-08 11:07:30)