WebAudio/Test Plan

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Web Audio

Feature Status Release Target Dev Lead QA Lead QA Status
Web Audio Landed Firefox 25 Ehsan Akhgari Manuela Muntean Signed Off

Summary

The Web Audio API describes a high-level JavaScript API for processing and synthesizing audio in web applications. The primary paradigm is of an audio routing graph, where a number of AudioNode objects are connected together to define the overall audio rendering.

  • Note: for Linux platform, in order to activate this feature, you need to go to about:config and set media.gstreamer.enabled to true

References

  • Notes
    • not all demos are currently available for Firefox (most of them only work with Chrome)
    • the MP3 support isn't finished yet on Mac

Test Cases

  • The manual test cases for this feature can be viewed in this Moztrap testsuite
  • Automated tests:
    • http://mxr.mozilla.org/mozilla-central/source/content/media/webaudio/test/
    • content/media/test/crashtests/907986-1.html
    • content/media/test/crashtests/907986-2.html
    • content/media/test/crashtests/907986-3.html
    • content/media/test/crashtests/907986-4.html
    • content/media/test/crashtests/889042.html
    • content/media/test/crashtests/880129.html
    • content/media/test/crashtests/878407.html
    • content/media/test/crashtests/878328.html
    • content/media/test/crashtests/877820.html
    • content/media/test/crashtests/876834.html
    • content/media/test/crashtests/876215.html
    • content/media/test/crashtests/876024-1.html
    • content/media/test/crashtests/876024-2.html
    • content/media/test/crashtests/875911.html
    • content/media/test/crashtests/875596.html
    • content/media/test/crashtests/868504.html

Bugs

Sign off

Criteria
  • All the test cases were executed
  • All the blocker, critical, major bugs have been fixed
Firefox 24 Aurora (pre-beta sign off) - 08/04/2013
  • On the next OSs:
    • Windows 7 64bit
    • Windows 8 32bit
    • Ubuntu 12.10 32bit
    • Mac OSX 10.8.3
Firefox 25 Aurora merge - 08/09/2013
  • On the next OSs:
    • Windows 7 64bit
    • Windows 8 64bit
    • Ubuntu 12.10 32bit
    • Mac OSX 10.8
  • Concerns:
    • bug 890528 - DelayNode repeats last signal multiple times, does no delay - NEW
    • bug 848954 - Call the MediaStreamGraph's processing code from the cubeb callback when needed - NEW
    • bug 849636 - Handle invalid offset/duration passed to AudioBufferSourceNode.start the same way that WebKit does - ASSIGNED
    • bug 857610 - Handle channel count changes in delay node - NEW
    • bug 864171 - Problem in converting AudioParam times to track ticks - NEW
    • bug 864780 - decodeAudioData fails to decode a wave file - NEW
    • bug 865239 - [Tracking] Finish implementing PannerNode - NEW
    • bug 865241 - Implement HRTF panning for PannerNode - ASSIGNED
    • bug 865253 - (oscillatornode) Implement OscillatorNode - NEW
    • bug 865256 - Implement WaveTable - REOPENED
    • bug 865553 - Specific mp3 file does not decode correctly when using `decodeAudioData` - REOPENED
    • bug 865642 - Intermittent test_delayNode.html,test_delayNodeWithGain.html,test_gainNode.html,test_scriptProcessorNode.html | Test timed out. - REOPENED
    • bug 868116 - Intermittent test_currentTime.html | AudioContext.currentTime should have increased by now - REOPENED
    • bug 874508 - Reconcile Web Audio with audio channels - NEW
    • bug 877662 - Optimize the AudioNodeEngine.cpp routines - NEW
    • bug 881092 - Cannot decode wave file - NEW
    • bug 881587 - Optimize the AudioNodeEngine.cpp routines added in bug 815643 - NEW
    • bug 881959 - Investigate support for cycles in the MediaStreamGraph with delay nodes present - NEW
    • bug 882171 - Optimize the AudioNodeEngine.cpp routines for NEON - NEW
    • bug 882543 - Create Web Audio benchmarks - NEW
    • bug 883010 - Optimize MediaStreamGraphImpl::UpdateStreamOrder in order to optimize away how much time we spend on it in every iteration of the MSG - NEW
    • bug 883844 - AudioBufferSourceNodes scheduled in a sequence aren't seamless - NEW
    • bug 885496 - Optimize KissFFT with NEON instructions - NEW
    • bug 885505 - Pref on Web Audio for Firefox 24 - NEW
    • bug 886381 - WebAudio static with closely timed AudioBufferSourceNodes - UNCONFIRMED
    • bug 890369 - WebAudio crash [@mozilla::StreamBuffer::FindTrack] - NEW


Firefox 25 Aurora (pre-beta sign off) - 09/02/2013
  • All the test cases were executed on the next OSs:
    • Windows 7 64bit
    • Windows 8 32bit
    • Ubuntu 12.10 32bit
    • Mac OSX 10.9
  • Investigated:
    • bug 890528 - DelayNode repeats last signal multiple times, does no delay
    • bug 865239 - [Tracking] Finish implementing PannerNode
    • bug 865241 - Implement HRTF panning for PannerNode
    • bug 865253 - (oscillatornode) Implement OscillatorNode
    • bug 865553 - Specific mp3 file does not decode correctly when using `decodeAudioData`
    • bug 881092 - Cannot decode wave file
    • bug 886381 - WebAudio static with closely timed AudioBufferSourceNodes
    • bug 910045 - ScriptProcessorNode onaudioprocess sometimes fires too fast
  • Concerns:
    • bug 848954 - Call the MediaStreamGraph's processing code from the cubeb callback when needed - NEW
    • bug 849636 - Handle invalid offset/duration passed to AudioBufferSourceNode.start the same way that WebKit does - ASSIGNED
    • bug 857610 - Handle channel count changes in delay node - NEW
    • bug 864171 - Problem in converting AudioParam times to track ticks - NEW
    • bug 864780 - decodeAudioData fails to decode a wave file - NEW
    • bug 865642 - Intermittent test_delayNode.html,test_delayNodeWithGain.html,test_gainNode.html,test_scriptProcessorNode.html | Test timed out. - REOPENED
    • bug 868116 - Intermittent test_currentTime.html | AudioContext.currentTime should have increased by now - REOPENED
    • bug 881587 - Optimize the AudioNodeEngine.cpp routines added in bug 815643 - NEW
    • bug 883010 - Optimize MediaStreamGraphImpl::UpdateStreamOrder in order to optimize away how much time we spend on it in every iteration of the MSG - NEW
    • bug 885496 - Optimize KissFFT with NEON instructions - NEW
    • bug 923319 - Web Audio performance is extremely poor - NEW
    • bug 898291 - PannerNode with HRTF should continue producing output a short time after it is GCed - NEW
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