зеркало из https://github.com/mozilla/gecko-dev.git
60 строки
1.7 KiB
C++
60 строки
1.7 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim:set ts=2 sw=2 sts=2 et cindent: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "MediaElementAudioSourceNode.h"
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#include "mozilla/dom/MediaElementAudioSourceNodeBinding.h"
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#include "AudioDestinationNode.h"
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#include "nsIScriptError.h"
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#include "AudioNodeStream.h"
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namespace mozilla {
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namespace dom {
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MediaElementAudioSourceNode::MediaElementAudioSourceNode(AudioContext* aContext)
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: MediaStreamAudioSourceNode(aContext)
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{
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}
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/* static */ already_AddRefed<MediaElementAudioSourceNode>
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MediaElementAudioSourceNode::Create(AudioContext& aAudioContext,
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const MediaElementAudioSourceOptions& aOptions,
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ErrorResult& aRv)
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{
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if (aAudioContext.IsOffline()) {
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aRv.Throw(NS_ERROR_DOM_NOT_SUPPORTED_ERR);
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return nullptr;
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}
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if (aAudioContext.CheckClosed(aRv)) {
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return nullptr;
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}
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RefPtr<MediaElementAudioSourceNode> node =
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new MediaElementAudioSourceNode(&aAudioContext);
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RefPtr<DOMMediaStream> stream =
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aOptions.mMediaElement->CaptureAudio(aRv, aAudioContext.Destination()->Stream()->Graph());
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if (aRv.Failed()) {
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return nullptr;
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}
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node->Init(stream, aRv);
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if (aRv.Failed()) {
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return nullptr;
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}
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return node.forget();
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}
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JSObject*
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MediaElementAudioSourceNode::WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto)
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{
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return MediaElementAudioSourceNodeBinding::Wrap(aCx, this, aGivenProto);
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}
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} // namespace dom
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} // namespace mozilla
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