tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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AudioProcessingEvent.cpp (1843B)

      1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
      2 /* vim:set ts=2 sw=2 sts=2 et cindent: */
      3 /* This Source Code Form is subject to the terms of the Mozilla Public
      4 * License, v. 2.0. If a copy of the MPL was not distributed with this
      5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      6 
      7 #include "AudioProcessingEvent.h"
      8 
      9 #include "AudioContext.h"
     10 #include "mozilla/dom/AudioProcessingEventBinding.h"
     11 #include "mozilla/dom/ScriptSettings.h"
     12 #include "nsGlobalWindowInner.h"
     13 
     14 namespace mozilla::dom {
     15 
     16 NS_IMPL_CYCLE_COLLECTION_INHERITED(AudioProcessingEvent, Event, mInputBuffer,
     17                                   mOutputBuffer, mNode)
     18 
     19 NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(AudioProcessingEvent)
     20 NS_INTERFACE_MAP_END_INHERITING(Event)
     21 
     22 NS_IMPL_ADDREF_INHERITED(AudioProcessingEvent, Event)
     23 NS_IMPL_RELEASE_INHERITED(AudioProcessingEvent, Event)
     24 
     25 AudioProcessingEvent::AudioProcessingEvent(ScriptProcessorNode* aOwner,
     26                                           nsPresContext* aPresContext,
     27                                           WidgetEvent* aEvent)
     28    : Event(aOwner, aPresContext, aEvent), mPlaybackTime(0.0), mNode(aOwner) {}
     29 
     30 AudioProcessingEvent::~AudioProcessingEvent() = default;
     31 
     32 JSObject* AudioProcessingEvent::WrapObjectInternal(
     33    JSContext* aCx, JS::Handle<JSObject*> aGivenProto) {
     34  return AudioProcessingEvent_Binding::Wrap(aCx, this, aGivenProto);
     35 }
     36 
     37 already_AddRefed<AudioBuffer> AudioProcessingEvent::LazilyCreateBuffer(
     38    uint32_t aNumberOfChannels, ErrorResult& aRv) {
     39  RefPtr<AudioBuffer> buffer = AudioBuffer::Create(
     40      mNode->Context()->GetOwnerWindow(), aNumberOfChannels,
     41      mNode->BufferSize(), mNode->Context()->SampleRate(), aRv);
     42  MOZ_ASSERT(buffer || aRv.ErrorCodeIs(NS_ERROR_OUT_OF_MEMORY));
     43  return buffer.forget();
     44 }
     45 
     46 }  // namespace mozilla::dom