| /* |
| * Copyright (C) 2014 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY |
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #pragma once |
| |
| namespace WebCore { |
| |
| class MediaProducer { |
| public: |
| enum MediaState { |
| IsNotPlaying = 0, |
| IsPlayingAudio = 1 << 0, |
| IsPlayingVideo = 1 << 1, |
| IsPlayingToExternalDevice = 1 << 2, |
| RequiresPlaybackTargetMonitoring = 1 << 3, |
| ExternalDeviceAutoPlayCandidate = 1 << 4, |
| DidPlayToEnd = 1 << 5, |
| IsSourceElementPlaying = 1 << 6, |
| IsNextTrackControlEnabled = 1 << 7, |
| IsPreviousTrackControlEnabled = 1 << 8, |
| HasPlaybackTargetAvailabilityListener = 1 << 9, |
| HasAudioOrVideo = 1 << 10, |
| HasActiveAudioCaptureDevice = 1 << 11, |
| HasActiveVideoCaptureDevice = 1 << 12, |
| HasMutedAudioCaptureDevice = 1 << 13, |
| HasMutedVideoCaptureDevice = 1 << 14, |
| HasInterruptedAudioCaptureDevice = 1 << 15, |
| HasInterruptedVideoCaptureDevice = 1 << 16, |
| HasUserInteractedWithMediaElement = 1 << 17, |
| |
| AudioCaptureMask = HasActiveAudioCaptureDevice | HasMutedAudioCaptureDevice | HasInterruptedAudioCaptureDevice, |
| VideoCaptureMask = HasActiveVideoCaptureDevice | HasMutedVideoCaptureDevice | HasInterruptedVideoCaptureDevice, |
| MediaCaptureMask = AudioCaptureMask | VideoCaptureMask, |
| }; |
| typedef unsigned MediaStateFlags; |
| |
| static bool isCapturing(MediaStateFlags state) { return (state & HasActiveAudioCaptureDevice) || (state & HasActiveVideoCaptureDevice) || (state & HasMutedAudioCaptureDevice) || (state & HasMutedVideoCaptureDevice); } |
| |
| virtual MediaStateFlags mediaState() const = 0; |
| |
| enum MutedState { |
| NoneMuted = 0, |
| AudioIsMuted = 1 << 0, |
| CaptureDevicesAreMuted = 1 << 1, |
| }; |
| typedef unsigned MutedStateFlags; |
| |
| virtual void pageMutedStateDidChange() = 0; |
| |
| protected: |
| virtual ~MediaProducer() = default; |
| }; |
| |
| } // namespace WebCore |