1/*
2 * Copyright (C) 2009 Google 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 are
6 * met:
7 *
8 *     * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *     * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 *     * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31#ifndef WebMediaPlayerClientImpl_h
32#define WebMediaPlayerClientImpl_h
33
34#include "platform/audio/AudioSourceProvider.h"
35#include "platform/graphics/media/MediaPlayer.h"
36#include "public/platform/WebAudioSourceProviderClient.h"
37#include "public/platform/WebMediaPlayerClient.h"
38#include "platform/weborigin/KURL.h"
39#include "wtf/OwnPtr.h"
40#include "wtf/PassOwnPtr.h"
41#include "wtf/ThreadingPrimitives.h"
42
43namespace blink {
44
45class AudioSourceProviderClient;
46class HTMLMediaElement;
47class WebAudioSourceProvider;
48class WebContentDecryptionModule;
49class WebMediaPlayer;
50
51// This class serves as a bridge between MediaPlayer and
52// WebMediaPlayer.
53class WebMediaPlayerClientImpl FINAL : public MediaPlayer, public WebMediaPlayerClient {
54
55public:
56    static PassOwnPtr<MediaPlayer> create(MediaPlayerClient*);
57
58    virtual ~WebMediaPlayerClientImpl();
59
60    // WebMediaPlayerClient methods:
61    virtual void networkStateChanged() OVERRIDE;
62    virtual void readyStateChanged() OVERRIDE;
63    virtual void timeChanged() OVERRIDE;
64    virtual void repaint() OVERRIDE;
65    virtual void durationChanged() OVERRIDE;
66    virtual void sizeChanged() OVERRIDE;
67    virtual void playbackStateChanged() OVERRIDE;
68
69    // WebEncryptedMediaPlayerClient methods:
70    virtual void keyAdded(const WebString& keySystem, const WebString& sessionId) OVERRIDE;
71    virtual void keyError(const WebString& keySystem, const WebString& sessionId, MediaKeyErrorCode, unsigned short systemCode) OVERRIDE;
72    virtual void keyMessage(const WebString& keySystem, const WebString& sessionId, const unsigned char* message, unsigned messageLength, const WebURL& defaultURL) OVERRIDE;
73    virtual void keyNeeded(const WebString& contentType, const unsigned char* initData, unsigned initDataLength) OVERRIDE;
74
75    virtual void setWebLayer(WebLayer*) OVERRIDE;
76    virtual WebMediaPlayer::TrackId addAudioTrack(const WebString& id, AudioTrackKind, const WebString& label, const WebString& language, bool enabled) OVERRIDE;
77    virtual void removeAudioTrack(WebMediaPlayer::TrackId) OVERRIDE;
78    virtual WebMediaPlayer::TrackId addVideoTrack(const WebString& id, VideoTrackKind, const WebString& label, const WebString& language, bool selected) OVERRIDE;
79    virtual void removeVideoTrack(WebMediaPlayer::TrackId) OVERRIDE;
80    virtual void addTextTrack(WebInbandTextTrack*) OVERRIDE;
81    virtual void removeTextTrack(WebInbandTextTrack*) OVERRIDE;
82    virtual void mediaSourceOpened(WebMediaSource*) OVERRIDE;
83    virtual void requestFullscreen() OVERRIDE;
84    virtual void requestSeek(double) OVERRIDE;
85    virtual void remoteRouteAvailabilityChanged(bool) OVERRIDE;
86    virtual void connectedToRemoteDevice() OVERRIDE;
87    virtual void disconnectedFromRemoteDevice() OVERRIDE;
88
89    // MediaPlayer methods:
90    virtual WebMediaPlayer* webMediaPlayer() const OVERRIDE;
91    virtual void load(WebMediaPlayer::LoadType, const WTF::String& url, WebMediaPlayer::CORSMode) OVERRIDE;
92    virtual void setPreload(MediaPlayer::Preload) OVERRIDE;
93
94#if ENABLE(WEB_AUDIO)
95    virtual AudioSourceProvider* audioSourceProvider() OVERRIDE;
96#endif
97
98private:
99    explicit WebMediaPlayerClientImpl(MediaPlayerClient*);
100
101    HTMLMediaElement& mediaElement() const;
102
103    MediaPlayerClient* m_client;
104    OwnPtr<WebMediaPlayer> m_webMediaPlayer;
105
106#if ENABLE(WEB_AUDIO)
107    // AudioClientImpl wraps an AudioSourceProviderClient.
108    // When the audio format is known, Chromium calls setFormat() which then dispatches into WebCore.
109
110    class AudioClientImpl FINAL : public GarbageCollectedFinalized<AudioClientImpl>, public WebAudioSourceProviderClient {
111    public:
112        explicit AudioClientImpl(AudioSourceProviderClient* client)
113            : m_client(client)
114        {
115        }
116
117        virtual ~AudioClientImpl() { }
118
119        // WebAudioSourceProviderClient
120        virtual void setFormat(size_t numberOfChannels, float sampleRate) OVERRIDE;
121
122        void trace(Visitor*);
123
124    private:
125        Member<AudioSourceProviderClient> m_client;
126    };
127
128    // AudioSourceProviderImpl wraps a WebAudioSourceProvider.
129    // provideInput() calls into Chromium to get a rendered audio stream.
130
131    class AudioSourceProviderImpl FINAL : public AudioSourceProvider {
132    public:
133        AudioSourceProviderImpl()
134            : m_webAudioSourceProvider(0)
135        {
136        }
137
138        virtual ~AudioSourceProviderImpl() { }
139
140        // Wraps the given WebAudioSourceProvider.
141        void wrap(WebAudioSourceProvider*);
142
143        // AudioSourceProvider
144        virtual void setClient(AudioSourceProviderClient*) OVERRIDE;
145        virtual void provideInput(AudioBus*, size_t framesToProcess) OVERRIDE;
146
147    private:
148        WebAudioSourceProvider* m_webAudioSourceProvider;
149        Persistent<AudioClientImpl> m_client;
150        Mutex provideInputLock;
151    };
152
153    AudioSourceProviderImpl m_audioSourceProvider;
154#endif
155};
156
157} // namespace blink
158
159#endif
160