зеркало из https://github.com/mozilla/gecko-dev.git
62 строки
2.1 KiB
C++
62 строки
2.1 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 et tw=78: */
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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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#ifndef mozilla_dom_VideoTrack_h
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#define mozilla_dom_VideoTrack_h
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#include "MediaTrack.h"
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namespace mozilla::dom {
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class VideoTrackList;
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class VideoStreamTrack;
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class VideoTrack : public MediaTrack {
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public:
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VideoTrack(nsIGlobalObject* aOwnerGlobal, const nsAString& aId,
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const nsAString& aKind, const nsAString& aLabel,
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const nsAString& aLanguage,
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VideoStreamTrack* aStreamTrack = nullptr);
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NS_DECL_ISUPPORTS_INHERITED
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NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(VideoTrack, MediaTrack)
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JSObject* WrapObject(JSContext* aCx,
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JS::Handle<JSObject*> aGivenProto) override;
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VideoTrack* AsVideoTrack() override { return this; }
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// When fetching media resource, if no video track is selected by the media
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// resource, then the first VideoTrack object in the list is set selected as
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// default. If multiple video tracks are selected by its media resource at
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// fetching phase, then the first enabled video track is set selected.
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// aFlags contains FIRE_NO_EVENTS because no events are fired in such cases.
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void SetEnabledInternal(bool aEnabled, int aFlags) override;
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// Get associated video stream track when the video track comes from
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// MediaStream. This might be nullptr when the src of owning HTMLMediaElement
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// is not MediaStream.
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VideoStreamTrack* GetVideoStreamTrack() { return mVideoStreamTrack; }
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// WebIDL
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bool Selected() const { return mSelected; }
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// Either zero or one video track is selected in a list; If the selected track
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// is in a VideoTrackList, then all the other VideoTrack objects in that list
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// must be unselected.
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void SetSelected(bool aSelected);
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private:
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virtual ~VideoTrack();
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bool mSelected;
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RefPtr<VideoStreamTrack> mVideoStreamTrack;
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};
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} // namespace mozilla::dom
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#endif // mozilla_dom_VideoTrack_h
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