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-rw-r--r--dom/media/VideoTrack.h61
1 files changed, 61 insertions, 0 deletions
diff --git a/dom/media/VideoTrack.h b/dom/media/VideoTrack.h
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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim:set ts=2 sw=2 et tw=78: */
+/* 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/. */
+
+#ifndef mozilla_dom_VideoTrack_h
+#define mozilla_dom_VideoTrack_h
+
+#include "MediaTrack.h"
+
+namespace mozilla::dom {
+
+class VideoTrackList;
+class VideoStreamTrack;
+
+class VideoTrack : public MediaTrack {
+ public:
+ VideoTrack(nsIGlobalObject* aOwnerGlobal, const nsAString& aId,
+ const nsAString& aKind, const nsAString& aLabel,
+ const nsAString& aLanguage,
+ VideoStreamTrack* aStreamTrack = nullptr);
+
+ NS_DECL_ISUPPORTS_INHERITED
+ NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(VideoTrack, MediaTrack)
+
+ JSObject* WrapObject(JSContext* aCx,
+ JS::Handle<JSObject*> aGivenProto) override;
+
+ VideoTrack* AsVideoTrack() override { return this; }
+
+ // When fetching media resource, if no video track is selected by the media
+ // resource, then the first VideoTrack object in the list is set selected as
+ // default. If multiple video tracks are selected by its media resource at
+ // fetching phase, then the first enabled video track is set selected.
+ // aFlags contains FIRE_NO_EVENTS because no events are fired in such cases.
+ void SetEnabledInternal(bool aEnabled, int aFlags) override;
+
+ // Get associated video stream track when the video track comes from
+ // MediaStream. This might be nullptr when the src of owning HTMLMediaElement
+ // is not MediaStream.
+ VideoStreamTrack* GetVideoStreamTrack() { return mVideoStreamTrack; }
+
+ // WebIDL
+ bool Selected() const { return mSelected; }
+
+ // Either zero or one video track is selected in a list; If the selected track
+ // is in a VideoTrackList, then all the other VideoTrack objects in that list
+ // must be unselected.
+ void SetSelected(bool aSelected);
+
+ private:
+ virtual ~VideoTrack();
+
+ bool mSelected;
+ RefPtr<VideoStreamTrack> mVideoStreamTrack;
+};
+
+} // namespace mozilla::dom
+
+#endif // mozilla_dom_VideoTrack_h