C++ (Cpp) HTMLMediaElement::MozCaptureStream Exemples

Exemple #1

Fichier : AudioContext.cpp Projet : Nazi-Nigger/gecko-dev

already_AddRefed<MediaElementAudioSourceNode>
AudioContext::CreateMediaElementSource(HTMLMediaElement& aMediaElement,
                                       ErrorResult& aRv)
{
  if (mIsOffline) {
    aRv.Throw(NS_ERROR_DOM_NOT_SUPPORTED_ERR);
    return nullptr;
  }
#ifdef MOZ_EME
  if (aMediaElement.ContainsRestrictedContent()) {
    aRv.Throw(NS_ERROR_DOM_NOT_SUPPORTED_ERR);
    return nullptr;
  }
#endif

  if (CheckClosed(aRv)) {
    return nullptr;
  }

  RefPtr<DOMMediaStream> stream = aMediaElement.MozCaptureStream(aRv,
                                                                   mDestination->Stream()->Graph());
  if (aRv.Failed()) {
    return nullptr;
  }
  return MediaElementAudioSourceNode::Create(this, stream, aRv);
}

Exemple #2

Fichier : AudioContext.cpp Projet : JCROM-FxOS/b2jc_gecko

already_AddRefed<MediaElementAudioSourceNode>
AudioContext::CreateMediaElementSource(HTMLMediaElement& aMediaElement,
                                       ErrorResult& aRv)
{
  if (mIsOffline) {
    aRv.Throw(NS_ERROR_DOM_NOT_SUPPORTED_ERR);
    return nullptr;
  }
  nsRefPtr<DOMMediaStream> stream = aMediaElement.MozCaptureStream(aRv);
  if (aRv.Failed()) {
    return nullptr;
  }
  nsRefPtr<MediaElementAudioSourceNode> mediaElementAudioSourceNode =
    new MediaElementAudioSourceNode(this, stream);
  return mediaElementAudioSourceNode.forget();
}

Exemple #3

Fichier : TVTuner.cpp Projet : philbooth/gecko-dev

already_AddRefed<DOMMediaStream>
TVTuner::CreateSimulatedMediaStream()
{
  nsCOMPtr<nsPIDOMWindowInner> domWin = GetOwner();
  if (NS_WARN_IF(!domWin)) {
    return nullptr;
  }

  nsIDocument* doc = domWin->GetExtantDoc();
  if (NS_WARN_IF(!doc)) {
    return nullptr;
  }

  ErrorResult error;
  ElementCreationOptionsOrString options;

  options.SetAsString();
  RefPtr<Element> element = doc->CreateElement(VIDEO_TAG, options, error);
  if (NS_WARN_IF(error.Failed())) {
    error.SuppressException();
    return nullptr;
  }

  nsCOMPtr<nsIContent> content(do_QueryInterface(element));
  if (NS_WARN_IF(!content)) {
    return nullptr;
  }

  HTMLMediaElement* mediaElement = static_cast<HTMLMediaElement*>(content.get());
  if (NS_WARN_IF(!mediaElement)) {
    return nullptr;
  }

  mediaElement->SetAutoplay(true, error);
  if (NS_WARN_IF(error.Failed())) {
    error.SuppressException();
    return nullptr;
  }

  mediaElement->SetLoop(true, error);
  if (NS_WARN_IF(error.Failed())) {
    error.SuppressException();
    return nullptr;
  }

  nsCOMPtr<nsITVSimulatorService> simService(do_QueryInterface(mTVService));
  if (NS_WARN_IF(!simService)) {
    return nullptr;
  }

  if (NS_WARN_IF(!mCurrentSource)) {
    return nullptr;
  }

  RefPtr<TVChannel> currentChannel = mCurrentSource->GetCurrentChannel();
  if (NS_WARN_IF(!currentChannel)) {
    return nullptr;
  }

  nsString currentChannelNumber;
  currentChannel->GetNumber(currentChannelNumber);
  if (currentChannelNumber.IsEmpty()) {
    return nullptr;
  }

  nsString currentVideoBlobUrl;
  nsresult rv = simService->GetSimulatorVideoBlobURL(mId,
                                                     ToTVSourceTypeStr(mCurrentSource->Type()),
                                                     currentChannelNumber,
                                                     domWin,
                                                     currentVideoBlobUrl);
  if (NS_WARN_IF(NS_FAILED(rv) || currentVideoBlobUrl.IsEmpty())) {
    return nullptr;
  }

  mediaElement->SetSrc(currentVideoBlobUrl, error);
  if (NS_WARN_IF(error.Failed())) {
    error.SuppressException();
    return nullptr;
  }

  // See Media Capture from DOM Elements spec.
  // http://www.w3.org/TR/mediacapture-fromelement/
  RefPtr<DOMMediaStream> stream = mediaElement->MozCaptureStream(error);
  if (NS_WARN_IF(error.Failed())) {
    error.SuppressException();
    return nullptr;
  }

  return stream.forget();
}