TPEPlatform/2013-09-12

Media

Media Recording

• bug 881840 - [MediaEncoder] Implement VP8 video track encoder / Benjamin
  • implement VP8TrackEncoder
    • WIP patch: framerate control, drop frame if the encoder is slow.
• bug 891705 - [MediaEncoder] Implement WebM 1.0 container writer
  • Can write dummy video frame and playback (seekable in chrome?)
  • Study how to store the vorbis data

• Reference:
  • Random early drop(RED) for media recording: http://www.cse.wustl.edu/~jain/bnr/ftp/f20_tcp/sld029.htm

Web Audio

• bug 885496 - Optimize KissFFT with NEON instructions / JW
  • fix bug in assembly code
  • export C APIs for runtime cpu detection
  • write test code
  • fix bug in NEON calling convention

• bug 894249 - Regression: Youtube running in Browser app cannot interrupt background playing content / JW
  • modify patch

• bug 914962 - createMediaElementSourceNode() can't work with local file / JW
  • trace code - MediaDecoder
  • debug test case

ImageCapture

• bug 888177 - [meta] Implement ImageCapture API / Shelly
  • Depends on bug 916643.
• bug 916643 - ImageCapture - Implement WebIDL and takePhoto() / Shelly
  • WIP of webidl and the function takePhoto().

Streaming Media

WebRTC

• bug 902856 - Should MediaEngineDefaultAudioSource generate real data? / slee
  • landed
• bug 914494 - getUserMedia application notification when a higher-priority user grabs the hardware / slee
  • Need to discuss with jesup
• bug 904025 - [B2G][WebRTC] media stream should stop when another high priority application request microphone resource /slee
  • r+'ed and fixing some compiling errors on linux.
• bug 896391 - memcpy from camera preview's GraphicBuffer is slow / slee
  • Co-work with the vendor
• The todo list of WebRTC / slee
  • Thanks for the help of John, Patrick, SC and ShianYow.
  • https://trello.com/b/wN1IEGhv/webrtc-1-3-planning
• bug 911046 - WebRTC OmxCodec coding path support / John Lin
  • use graphic buffer in decoder to reduce CPU usage (from 7x% to 4x%)
  • issues found
    • frame drop
    • camera freeze

Graphic

• bug 907048 - Skip colorlayer if other opacity layer just covers the colorlayer region / Peter
  • Landed
  • will create another bug for layer tree parsing before GPU/HWC composition

• Vsync proposal study / Peter
  • https://wiki.mozilla.org/User:Roc/VsyncProposal

• bug 907108 [B2G][Helix][Gaia][meijinfang]The orientation of iamge will be inverted in the edit view of gallery / Peter
  • Checking

• bug 893304 - Convert CanvasClientWebGL (and Host) to the new textures /Morris
  • wait for review

• bug 709490 - Run WebGL on Web Worker with Off-Main-Thread-Compositing /Morris
  • study

Nexus 4 JB support

• bug 912373 - Support colorlayer for generic HWComposer, like MDP /Jerry
  • Nexus 4 can use hwc with one color layer now.
    • Working on:
      • 1. 2 or more color layers support.
      • 2. optimize color layer buffer size
      • 3. optimize color layer buffer filling performance

Free Agent

• bug 854753 [B2G][Audio] Implement SpeakerManager API
  • push sicking reviewing....But gaia part already got r+ ?

• bug 911009 - Add error handling for state of ChannelError in AsyncChannel::ProcessLink::Open / Shelly
  • r+ and landed.

• bug 908995 - [B2G] Task tracer / Shelly
  • Study task tracer.

Study

• vorbis in ogg container