TPEPlatform/2013-07-11: Difference between revisions

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==Meeting Minutes==
==Meeting Minutes==
CJ
===CJ===
*On going event:
*On going event:
**[https://taiwan.etherpad.mozilla.org/251 Gfx dairy sprint]
**[https://taiwan.etherpad.mozilla.org/251 Gfx dairy sprint]
Line 71: Line 71:
**[https://taiwan.etherpad.mozilla.org/254 WebRTC weekly meeting]
**[https://taiwan.etherpad.mozilla.org/254 WebRTC weekly meeting]
***10:00 AM each Friday. Blue mountain.
***10:00 AM each Friday. Blue mountain.
**Backlog
*Backlog
***https://intranet.mozilla.org/TPEPlatform
**https://intranet.mozilla.org/TPEPlatform
***Share your idea, what you want to do in the future.
**Share your idea, what you want to do in the future.

Revision as of 06:48, 11 July 2013

Media

Media Recorder

  • Write document for B2G HW decode diagram / Alfredo
  • Discuss architecture design on #media, studying mp4v2 as muxer / Alfredo

Streaming Media

RTSP bug 831645 / Bechen

  • RTSP bug 831645
    • waiting for review
  • bug 877116 - [RTSP] audio playback latency is serious with the following media streams(Video:H.264 Audio:AAC)
    • According to rfc3640, we can divide a RTP packet into several Access-Unit, and calculate the timestamp for each AU.
      • It works now, but since we divide a RTP packet into several small pieces, also increase the ipc loading. And we observe the smallest aac AU is only 9 bytes (silence aac frame), means that a RTP packet will be divided into more than 100 AUs corresponding to 100 ipc, 100 slots. Then we must adjust the slot buffer number in RTSPTrackBuffer bug 877193.
  • The b2g process crash on our ipc call "onMediaDataAvailable", seems we can't do ipc on android thread. Help by / Cervantes.


WebRTC

  • bug 869869 - e10s for UDP socket / SC
    • update patch according to 4th review comment
    • investigating memory leakage in nsUDPSocket, leak at DeadlockDetector (on exist on debug build)
    • performance analysis / Steven
  • Huawei device performance test
    • Test ekr's video benchmark
    • Try to use perf from jld
      • It has problem when parsing the recorded data, asking jld.
    • memcpy from GraphicBuffer to system memory is slow.
      • Still trying to find out why it is so slow(copy 640x480 bytes takes about 12ms)

Graphic

Canvas 2D/SkiaGL bug 858237

  • bug 869199 Bad performance of fishie tank/ Peter
    • Implement separate thread for canvas rendering and check bug 857895
  • bug 875168 Integrate SurfaceTexture/ Peter
    • pending...

HW Composer

  • bug 884188/bug 885345 HWC can't render small layer due to no gralloc buffer/ Peter
    • Provided workaround on m-c and wait for review

Misc

  • Prepare b2g GFX introduction and porting([1])
    • Have presentation at 10:30 am this Friday

Stability

Free Agent

B2G GFX arch

  • Reading GFX arch /JerryShih
  • Studying Gfx/Layer architecture /Morris


MMS

  • bug 889767 - [MMS] AMR audio attachement is recognized and shown as video file \ SC
    • add attachment of a *.3gp audio file will be recognized as a video blob
    • nsExternalHelper return video/3gpp for *.3gp file, change the file name to *.amr will correctly return audio/amr.
    • *.3gp is a container format, should allow *.3ga for audio file instead.
  • bug 887164 - [MMS-Gallery] BMP and WBMP display support from MMS issue. \ SC
    • discuss with Steve and leo partner, decide to decode WBMP in Message app and save WBMP as PNG.

MemShrink

  • bug 771765 - [Nuwa] update patches per review comments \Cervantes
    • Awaiting review for the IPC-related parts.
    • Study browser-element test cases.

Meeting Minutes

CJ