1/*
2 * Copyright (C) 2011 Google Inc. All rights reserved.
3 * Copyright (C) 2011-2017 Apple Inc. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#pragma once
28
29#if ENABLE(VIDEO_TRACK)
30
31#include "AudioTrackPrivate.h"
32#include "TrackBase.h"
33
34namespace WebCore {
35
36class AudioTrack;
37
38class AudioTrackClient {
39public:
40 virtual ~AudioTrackClient() = default;
41 virtual void audioTrackEnabledChanged(AudioTrack&) = 0;
42};
43
44class AudioTrack final : public MediaTrackBase, private AudioTrackPrivateClient {
45public:
46 static Ref<AudioTrack> create(AudioTrackClient& client, AudioTrackPrivate& trackPrivate)
47 {
48 return adoptRef(*new AudioTrack(client, trackPrivate));
49 }
50 virtual ~AudioTrack();
51
52 static const AtomicString& alternativeKeyword();
53 static const AtomicString& descriptionKeyword();
54 static const AtomicString& mainKeyword();
55 static const AtomicString& mainDescKeyword();
56 static const AtomicString& translationKeyword();
57 static const AtomicString& commentaryKeyword();
58
59 bool enabled() const final { return m_enabled; }
60 void setEnabled(const bool);
61
62 void clearClient() final { m_client = nullptr; }
63 AudioTrackClient* client() const { return m_client; }
64
65 size_t inbandTrackIndex() const;
66
67 void setPrivate(AudioTrackPrivate&);
68 void setMediaElement(HTMLMediaElement*) override;
69
70private:
71 AudioTrack(AudioTrackClient&, AudioTrackPrivate&);
72
73 bool isValidKind(const AtomicString&) const final;
74
75 // AudioTrackPrivateClient
76 void enabledChanged(bool) final;
77
78 // TrackPrivateBaseClient
79 void idChanged(const AtomicString&) final;
80 void labelChanged(const AtomicString&) final;
81 void languageChanged(const AtomicString&) final;
82 void willRemove() final;
83
84 void updateKindFromPrivate();
85
86#if !RELEASE_LOG_DISABLED
87 const char* logClassName() const final { return "AudioTrack"; }
88#endif
89
90 AudioTrackClient* m_client { nullptr };
91 Ref<AudioTrackPrivate> m_private;
92 bool m_enabled { false };
93};
94
95} // namespace WebCore
96
97SPECIALIZE_TYPE_TRAITS_BEGIN(WebCore::AudioTrack)
98 static bool isType(const WebCore::TrackBase& track) { return track.type() == WebCore::TrackBase::AudioTrack; }
99SPECIALIZE_TYPE_TRAITS_END()
100
101#endif
102