TPEPlatform/2014-03-20

Media

• bug 973522 - MediaRecorder causes large leak /rlin
  • get r-, and keep debugging the one crash on pushDataRunnable class at try server.
• bug 959490 - [MediaEncoder] Support *.3gp with AMR-NB audio format on certificated application /rlin
  • landed
• bug 956997 - Media Recording - Pass timeslices value from recorder to encoder writer /ayang
  • ROC suggests current implementation is ok, so stop the fixing.
• bug 984223 - Support H.264 hardware codec decoder in WebRTC /ayang
  • Studying webrtc multimedia arch.
• bug 911046 WebRTC OmxCodec coding path support. / John
  • Rebase WIP patches on latest m-c.
  • Upload latest patches.
  • Investigate crashing issue. See next item.
• bug 985878 AtomicRefCounted is not thread-safe. / John
  • Causes double free crash.
  • Upload patch for :glandium's feedback.
• bug 975371 - Have a utility to figure our YUV pixel format of a PlanarYCbCrImage object /bechen
  • WIP patch

Graphics

• bug 930884 - [@ egl_window_surface_t::~egl_window_surface_t] /Jerry
  • Add cancelBuffer() to ICS FrameNativeWindow.
    • land

• bug 983489 - [@ mozilla::gl::GLContext::MakeCurrent(bool)] /Jerry
  • debug
    • B2G use the GLContext after it released. It crashed when dereference the null ptr. Need to check the cleanup sequence when shutdown.

• bug 974807 - [Sora][gallery]WebGL context is lost when the screen is turned off /Jerry
  • review?
    • If the context lost during the image processing, just skip the processing operation and reset the state.

• Restyle performace
  • Work with Cameron to check the B2G restyle performance.

• bug 981005 - [B2G][Gallery][Crop Image]Image no longer displays after user presses 'undo' button /Jerry
  • It can be reproduced on my device. Debugging...

Platform

• bug 970751 - Making more smooth scrolling on scrollable layer /vilin
• bug 980241 - Vsync-triggered RefreshDriver /vilin
  • Fix the uniformity issue caused by the inconsistency between Vsync(60Hz) and touch sampling rate(100Hz).
  • WIP(Bug 980241) :
    • RefreshDriver, CompositorParent and TouchEvent dispatcher all align with Vsync.
    • Touch resampling algorithm.
    • Uniform touch event generator for test.
      • Profiling performance bottleneck(scrolling Setting, swiping Homescreen, dragging icon in Homescreen)
  • To-do-Items
    • Try to evaluate if the improvement of Bug 931668 is helpful.
    • Fine tune Touch resampling algorithm.
    • Graph of movement smoothness. (x:time, y:movement)
• bug 975346 - [LayerScope] LayerScope is not work while HWC is chosen / boris
  • WIP
• Camera Panorama Prototype / CTai
  • WIP: Analysis and implement prototype. Looks like we need to extend current GonkNativeWindow to support OpenGL texture binding.
• libjpeg-turbo OpenCL decoder patch on FX OS.
  • Analysis: Try to enable debug log for image decoder in Gecko on B2G. JPEG decoder in Gecko uses decoding pool which makes logging very complex.
• bug 984306 - remove webrtc from libxul / slee
  • measure the size differences.
• bug 980744 - gUM crashes in debug build / slee
  • r+ and wait for landing
• bug 984215 - VideoConduit reads the rotation flag and decides the rotation degree / slee
  • performance test of rotation, color space conversion and scaling. CPU usage, rotation > scaling > conversion.
  • proposed an WIP based on bug 976397
• bug 935776 - Mavericks cannot build emulator / slee
  • Help Vicamo test his patch

Study

• Layout study / Boris
  • Documents of Layers and Compositing:
    • https://wiki.mozilla.org/Gecko:Overview
    • http://www.basschouten.com/blog1.php/layers-cross-platform-acceleration
    • http://robert.ocallahan.org/2010/04/layers_01.html
    • Slides: B2G - GFX introduction
    • LayerScope: https://wiki.mozilla.org/Platform/GFX/LayerScope