[Webkit-unassigned] [Bug 83902] New: OfflineAudioContext constructor must be exposed for Web Audio API

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=83902

           Summary: OfflineAudioContext constructor must be exposed for
                    Web Audio API
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Web Audio
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: crogers at google.com
                CC: crogers at google.com, james.wei at intel.com


Internally for our layout tests we use an OfflineAudioContext for offline processing, but this is not yet in the specification.

Currently the layout tests overload the "normal" AudioContext constructor as such:
context = new webkitAudioContext(2, lengthInSampleFrames, sampleRate);

Providing three arguments, then creating an OfflineAudioContext instead of a normal AudioContext.  But to expose this as an official part of the spec, I believe it would be better as:

context = new OfflineAudioContext(2, lengthInSampleFrames, sampleRate); // but of course for now would have the "webkit" prefix  -- webkitOfflineAudioContext

This is because it's a different kind of context and we'll need to be careful that the "normal" AudioContext has room to grow with additional constructor arguments that don't clash with the offline ones...

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