TPEPlatform/2013-07-18

Media

Web Audio

• bug 878015 - WebAudio ASSERTION: Something went wrong with rounding to block boundaries: 't == aTo' / JW
  • debug the test case
  • trace MediaStreamGraphImpl code
  • submit a patch

Media Recorder

• MP4 muxer / Alfredo
  • study MP4 container format
  • survey ffmpeg

Streaming Media

RTSP bug 831645 / Bechen

• RTSP bug 831645
  • waiting for review
• bug 892395 - Rtsp: calibrate rtp timestamp in the beginning of media streaming.
  • We found that the first few packet's timestamp is negative
    • We should parsing the RTP-Info in RTSP packet instead of the timestamp is RTCP sender report packet.

WebRTC

• memcpy from GraphicBuffer to system memory / Steven
  • run on a single test case with multiple memcpy - result is good
  • Lock with WRITE permission - still slow
  • try memcpy on camera capture thread - processing
  • try stop composite thread when copy - processing
• bug 869869 - e10s for UDP socket / SC
  • update patch according to 5th review comment, part 1 got r+.
• checking latest version of gUM spec / SC
  • studying the difference between current implementation and latest spec
• inject dummy codec into WebRTC processing pipe / John Lin
  • create dummy VideoEncoder/VideoDecoder implementation and register it as external codec to WebRTC codec DB.
  • pass WebRTC module intergration test.
• bug 853356 - Permission check for microphone acquisition / Alfredo
  • connect to B2G ContentPermissionPrompt in C instead of JS

Graphic

Canvas 2D/SkiaGL bug 858237

• bug 875168 Integrate SurfaceTexture / Peter
  • prepare design diagram review

HWC

• bug 884188 High power consumption of youtube streaming / Peter
  • Debug image layer on b2g18 branch

Misc

• bug 858914 Layer refactoring about textureclient/host / Peter
  • check change scope

• bug 894262 Merge GrallocPlanarYCbCrImage to GonkIOSurfaceImage / Peter (Implementation)

• bug 894847 WebGL is horrible slow when hardware composer unavailable/ Morris
  • Analysis: Still try to find root cuase of this problem

Stability

Free Agent

• Study compositor rendering flow/ Morris
• Study TextureClient/TextureHost data flow /Jerry

MemShrink

• bug 771765 - [Nuwa] Study browser-element test cases /Cervantes
  • Mochitest appears to be broken on device.
  • Investigate the usage of marionette instead.

OTA

• bug 891009 - [OTA] If the download of an update is stopped due to an instable network it cannot be continued until the device gets restarted / SC
  • The selection state is not reset after severe network error, therefore, passing the same Update object when manually re-download be treat as an inoperable update.
  • patch submitted and waiting for review.
• Try establishing the FOTA build environment for inari/ikura, which can help QA to test the data migration. / SC
  • ongoing, need some time to figure out the makefile problem in B2G.

perf

• perf porting / Steven
  • I can run perf on peak and helix - will have an simple introduction

Event Handling

• bug 845169 - Target events "properly" at overlapping app frames /Kanru
  • Three method to attack this
    • Send touchable region after each composition
    • Use compositor to decide which process to dispatch
    • Synchronously ask remote process for hit detection
  • Currently trying method #1
• bug 847763 - Prevent virtual keyboard iframe from getting focus /Kanru
  • Investigating why the keyboard couldn't receive the touch events when OOP
  • It turns out we need to fix bug 845169 first for OOP case

Study

• read doc / JW
  • role interface
  • header interface
  • The interface segregation principle
  • CGDB debugging
• code base study / John Lin
  • WebRTC A/V coding module
  • stagefright (GB & JB version)