1/*
2 * Copyright (C) 2014 Apple Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 */
25
26#pragma once
27
28#include <wtf/WeakPtr.h>
29
30namespace WebCore {
31
32class MediaProducer : public CanMakeWeakPtr<MediaProducer> {
33public:
34 enum MediaState {
35 IsNotPlaying = 0,
36 IsPlayingAudio = 1 << 0,
37 IsPlayingVideo = 1 << 1,
38 IsPlayingToExternalDevice = 1 << 2,
39 RequiresPlaybackTargetMonitoring = 1 << 3,
40 ExternalDeviceAutoPlayCandidate = 1 << 4,
41 DidPlayToEnd = 1 << 5,
42 IsSourceElementPlaying = 1 << 6,
43 IsNextTrackControlEnabled = 1 << 7,
44 IsPreviousTrackControlEnabled = 1 << 8,
45 HasPlaybackTargetAvailabilityListener = 1 << 9,
46 HasAudioOrVideo = 1 << 10,
47 HasActiveAudioCaptureDevice = 1 << 11,
48 HasActiveVideoCaptureDevice = 1 << 12,
49 HasMutedAudioCaptureDevice = 1 << 13,
50 HasMutedVideoCaptureDevice = 1 << 14,
51 HasInterruptedAudioCaptureDevice = 1 << 15,
52 HasInterruptedVideoCaptureDevice = 1 << 16,
53 HasUserInteractedWithMediaElement = 1 << 17,
54 HasActiveDisplayCaptureDevice = 1 << 18,
55 HasMutedDisplayCaptureDevice = 1 << 19,
56 HasInterruptedDisplayCaptureDevice = 1 << 20,
57
58 AudioCaptureMask = HasActiveAudioCaptureDevice | HasMutedAudioCaptureDevice | HasInterruptedAudioCaptureDevice,
59 VideoCaptureMask = HasActiveVideoCaptureDevice | HasMutedVideoCaptureDevice | HasInterruptedVideoCaptureDevice,
60 DisplayCaptureMask = HasActiveDisplayCaptureDevice | HasMutedDisplayCaptureDevice | HasInterruptedDisplayCaptureDevice,
61 MutedCaptureMask = HasMutedAudioCaptureDevice | HasMutedVideoCaptureDevice | HasMutedDisplayCaptureDevice,
62 MediaCaptureMask = AudioCaptureMask | VideoCaptureMask | DisplayCaptureMask,
63 };
64 typedef unsigned MediaStateFlags;
65
66 static bool isCapturing(MediaStateFlags state) { return (state & HasActiveAudioCaptureDevice) || (state & HasActiveVideoCaptureDevice) || (state & HasMutedAudioCaptureDevice) || (state & HasMutedVideoCaptureDevice); }
67
68 virtual MediaStateFlags mediaState() const = 0;
69
70 enum MutedState {
71 NoneMuted = 0,
72 AudioIsMuted = 1 << 0,
73 AudioAndVideoCaptureIsMuted = 1 << 1,
74 ScreenCaptureIsMuted = 1 << 2,
75
76 MediaStreamCaptureIsMuted = AudioAndVideoCaptureIsMuted | ScreenCaptureIsMuted,
77 };
78 typedef unsigned MutedStateFlags;
79
80 virtual void pageMutedStateDidChange() = 0;
81
82protected:
83 virtual ~MediaProducer() = default;
84};
85
86} // namespace WebCore
87