gecko/content/media/webaudio/DynamicsCompressorNode.cpp
Ehsan Akhgari f39e83f1de Bug 836076 - Part 3: Make AudioParams call back into their owning node when they're modified; r=roc
We need this in order to update the MediaStreamGraph thread when an
AudioParam changes.  This enables each AudioParam to be registered with
a callback from its owner node, so that the owner node can have custom
processing code for each AudioParam's mutation.
2013-01-28 18:59:29 -05:00

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1.6 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim:set ts=2 sw=2 sts=2 et cindent: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "DynamicsCompressorNode.h"
#include "mozilla/dom/DynamicsCompressorNodeBinding.h"
namespace mozilla {
namespace dom {
NS_IMPL_CYCLE_COLLECTION_INHERITED_6(DynamicsCompressorNode, AudioNode,
mThreshold,
mKnee,
mRatio,
mReduction,
mAttack,
mRelease)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(DynamicsCompressorNode)
NS_INTERFACE_MAP_END_INHERITING(AudioNode)
NS_IMPL_ADDREF_INHERITED(DynamicsCompressorNode, AudioNode)
NS_IMPL_RELEASE_INHERITED(DynamicsCompressorNode, AudioNode)
DynamicsCompressorNode::DynamicsCompressorNode(AudioContext* aContext)
: AudioNode(aContext)
, mThreshold(new AudioParam(this, Callback, -24.f, -100.f, 0.f))
, mKnee(new AudioParam(this, Callback, 30.f, 0.f, 40.f))
, mRatio(new AudioParam(this, Callback, 12.f, 1.f, 20.f))
, mReduction(new AudioParam(this, Callback, 0.f, -20.f, 0.f))
, mAttack(new AudioParam(this, Callback, 0.003f, 0.f, 1.f))
, mRelease(new AudioParam(this, Callback, 0.25f, 0.f, 1.f))
{
}
JSObject*
DynamicsCompressorNode::WrapObject(JSContext* aCx, JSObject* aScope)
{
return DynamicsCompressorNodeBinding::Wrap(aCx, aScope, this);
}
}
}