TPEPlatform/2013-11-14

Media

Media Recording

• bug 879669 - Support Video Encoder module in MediaEncoder framewrok / Shelly
  • Part 1: VideoTrackEncoder and some refactor in AudioTrackEncoder
    • Accumulate the duration of duplicated chunks.
    • Create an black image for null chunks.
    • Has finally reached to a stable stage, ready to add documentation.
• bug 879668 - [MediaEncoder] Implement VideoOmxEncoder on B2G / Shelly
  • Part 1: Add OMXCodecWrapper
  • Part 2: Add OmxTrackEncoder
    • Deal with null chunks, and condition of EOS.

• bug 920934 - [MediaEncoder] Implement AudioOmxEncoder on B2G / John Lin
  • encode AAC frames using MediaCodec.
  • test with packing to MP4 using MediaMuxer. Output can be played.
  • integrate with ayang's fmp4 muxer.

• bug 891704 - [MediaEncoder] Implement MP4Writer / ayang
  • integrate with John's aac encoder

• bug 879669 Support Video Encoder module in MediaEncoder framewrok /rlin
  • MediaEncoder part patch provided
• bug 891705 [MediaEncoder] Implement WebM 1.0 container writer /rlin
  • still implement
• bug 935774 "Assertion failure: meta" in mozilla::MediaEncoder::GetEncodedData
  • r+, but block by another bug, wait to land

Web Audio

• bug 926838 - [B2G] Convolver node run very slow on unagi/buri / JW
  • fix build errors on emulators
  • port FFTW to ARM device, write perf test code
  • peak perf data, loop=1000, fft size=4096

     forward fft:
       kissfft=0.422585(100%), openmaxdl=0.219870(52.03%), fftw=0.178985(42.35%)
     inverse fft:
       kissfft=0.557688(100%), openmaxdl=0.241888(43.37%), fftw=0.344252(61.73%)
     fwd + inv:
       kissfft=0.980273(100%), openmaxdl=0.461758(47.11%), fftw=0.523237(53.38%)
       fwd fftw + inv openmaxdl = 0.420873(42.93%)

• bug 916392 - AudioBufferSourceNode output channel count should not drop after playback stops / JW
  • run test cases
  • discuss with Karl about the lifetime of audio nodes

Streaming Media

WebRTC

• bug 936801 - nsLDAPConnection.cpp fails to compile with multiple errors possibly caused by mozilla-central Bug 869869 Part 1 \ SC
  • build error in Thunderbird because some file will include both winsock.h and winsock2.h
  • use forward declaration instead of directly include DNS.h in nsINetAddr.idl
  • r+'ed and landed on m-c.
• bug 938492 - clean-up after bug 869869 is landed \ SC
  • follow-up bug for fixing contractID/interface name in PushService.jsm, remove obsolete TestUDPServerSocket.cpp
  • upload patch and waiting for review.
• bug 926746 - HARDWARE_UNAVAILABLE is already thrown while GetUserMedia for audio / slee
  • WIP patches and wait for feedback.
• bug 896391 - memcpy from camera preview's GraphicBuffer is slow / slee
  • Profile the memory copy speed of libyuv and bionic.
  • results https://bugzilla.mozilla.org/show_bug.cgi?id=896391#c44

Graphic

• bug 933711 - [B2G][Helix][stability][fengximing]When the Firefox phone goes to sleep, wait for long time, if you wake up the phone, it took too much time to enter the lock screen.
  • The screen blank because re-paint event not triggered. Try to find why re-paint event not triggered

• CSS transform and layout study / Peter
  • https://taiwan.etherpad.mozilla.org/layout-study

• bug 929432 - [B2G][Helix][Browser][ChenHoulai] Open youtube in the browser, there is an extra horizontal line on the top when in full-screen mode /Peter
  • trace layout for videocontrol resize handling

• bug 814524 - Make WebGLContext::TexImage2D avoid readback for video elements / Chiajung
  • first version done, need clean up and more test

• Write camera native to I420 GPU based color space converter / Chiajung
  • debugging

• Study Miracast on Android /Chiajung

• bug 920921 - [Flatfish]: Flatfish has bad performance on Homescreen wiping /Jerry
  • Trace layer building flow.
    • nsDisplayList::PaintRoot()
      • FrameLayerBuilder::BuildContainerLayerFor()

• bug 937630 - lockscreen fade-out animation is < 60fps /Jerry
  • Use systrace to get profiler data
    • Try to build b2g18 on JB 4.2

• bug 934140 - Enable HWC on Nexus 4 with Android JB HAL
• bug 934912 - QCT CAF patch for RB swap/copybit related patches
  • Diego Wilson provided a patched which based on latest CAF JB4.3 and cannot be applied on our current code base. Working on syncing our HAL libs(hwcomposer + copybit + overlay + kernel header + libvirtual + libhardware + qdutil + libgralloc) to CAF.

Input

• bug 924692 - Add support for selecting using touch / Phoebe
  • first version WIP upload
  • trace nsCSSFrameConstructor.cpp, nsPresShell.cpp to understand layout frame construction processes.
  • try to add CreateAnonymousContent functionality in viewportFrame.

Free Agent

• review web audio article translation. / JW

Study

• Frame tree construction \ SC
• Study CSS 2.1 spec /Chiajung