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

Platform

• Vsync trigger
  • 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
  • study
    • 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
• Image process/camera /CTai
  • Camera Panorama Prototype
    • 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.