1/*
2 * Copyright (C) 2013-2014 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#ifndef SourceBufferPrivateAVFObjC_h
27#define SourceBufferPrivateAVFObjC_h
28
29#if ENABLE(MEDIA_SOURCE) && USE(AVFOUNDATION)
30
31#include "SourceBufferPrivate.h"
32#include <map>
33#include <wtf/Deque.h>
34#include <wtf/HashMap.h>
35#include <wtf/MediaTime.h>
36#include <wtf/RefPtr.h>
37#include <wtf/RetainPtr.h>
38#include <wtf/Vector.h>
39#include <wtf/WeakPtr.h>
40#include <wtf/text/AtomicString.h>
41
42OBJC_CLASS AVAsset;
43OBJC_CLASS AVStreamDataParser;
44OBJC_CLASS AVSampleBufferAudioRenderer;
45OBJC_CLASS AVSampleBufferDisplayLayer;
46OBJC_CLASS NSData;
47OBJC_CLASS NSError;
48OBJC_CLASS NSObject;
49OBJC_CLASS WebAVStreamDataParserListener;
50OBJC_CLASS WebAVSampleBufferErrorListener;
51
52typedef struct opaqueCMSampleBuffer *CMSampleBufferRef;
53typedef const struct opaqueCMFormatDescription *CMFormatDescriptionRef;
54
55namespace WebCore {
56
57class MediaSourcePrivateAVFObjC;
58class TimeRanges;
59class AudioTrackPrivate;
60class VideoTrackPrivate;
61class AudioTrackPrivateMediaSourceAVFObjC;
62class VideoTrackPrivateMediaSourceAVFObjC;
63
64class SourceBufferPrivateAVFObjCErrorClient {
65public:
66    virtual ~SourceBufferPrivateAVFObjCErrorClient() { }
67    virtual void layerDidReceiveError(AVSampleBufferDisplayLayer *, NSError *) = 0;
68    virtual void rendererDidReceiveError(AVSampleBufferAudioRenderer *, NSError *) = 0;
69};
70
71class SourceBufferPrivateAVFObjC final : public SourceBufferPrivate {
72public:
73    static RefPtr<SourceBufferPrivateAVFObjC> create(MediaSourcePrivateAVFObjC*);
74    virtual ~SourceBufferPrivateAVFObjC();
75
76    void clearMediaSource() { m_mediaSource = nullptr; }
77
78    // AVStreamDataParser delegate methods
79    void didParseStreamDataAsAsset(AVAsset*);
80    void didFailToParseStreamDataWithError(NSError*);
81    void didProvideMediaDataForTrackID(int trackID, CMSampleBufferRef, const String& mediaType, unsigned flags);
82    void didReachEndOfTrackWithTrackID(int trackID, const String& mediaType);
83    void didProvideContentKeyRequestInitializationDataForTrackID(NSData*, int trackID);
84
85    bool processCodedFrame(int trackID, CMSampleBufferRef, const String& mediaType);
86
87    bool hasVideo() const;
88    bool hasAudio() const;
89
90    void trackDidChangeEnabled(VideoTrackPrivateMediaSourceAVFObjC*);
91    void trackDidChangeEnabled(AudioTrackPrivateMediaSourceAVFObjC*);
92
93    void seekToTime(MediaTime);
94    MediaTime fastSeekTimeForMediaTime(MediaTime, MediaTime negativeThreshold, MediaTime positiveThreshold);
95    IntSize naturalSize();
96
97    int protectedTrackID() const { return m_protectedTrackID; }
98    AVStreamDataParser* parser() const { return m_parser.get(); }
99
100    void registerForErrorNotifications(SourceBufferPrivateAVFObjCErrorClient*);
101    void unregisterForErrorNotifications(SourceBufferPrivateAVFObjCErrorClient*);
102    void layerDidReceiveError(AVSampleBufferDisplayLayer *, NSError *);
103    void rendererDidReceiveError(AVSampleBufferAudioRenderer *, NSError *);
104
105private:
106    explicit SourceBufferPrivateAVFObjC(MediaSourcePrivateAVFObjC*);
107
108    // SourceBufferPrivate overrides
109    virtual void setClient(SourceBufferPrivateClient*) override;
110    virtual void append(const unsigned char* data, unsigned length) override;
111    virtual void abort() override;
112    virtual void removedFromMediaSource() override;
113    virtual MediaPlayer::ReadyState readyState() const override;
114    virtual void setReadyState(MediaPlayer::ReadyState) override;
115    virtual void flushAndEnqueueNonDisplayingSamples(Vector<RefPtr<MediaSample>>, AtomicString trackID) override;
116    virtual void enqueueSample(PassRefPtr<MediaSample>, AtomicString trackID) override;
117    virtual bool isReadyForMoreSamples(AtomicString trackID) override;
118    virtual void setActive(bool) override;
119    virtual void notifyClientWhenReadyForMoreSamples(AtomicString trackID) override;
120
121    void flushAndEnqueueNonDisplayingSamples(Vector<RefPtr<MediaSample>>, AVSampleBufferAudioRenderer*);
122    void flushAndEnqueueNonDisplayingSamples(Vector<RefPtr<MediaSample>>, AVSampleBufferDisplayLayer*);
123
124    void didBecomeReadyForMoreSamples(int trackID);
125    void appendCompleted();
126    void destroyParser();
127    void destroyRenderers();
128
129    WeakPtr<SourceBufferPrivateAVFObjC> createWeakPtr() { return m_weakFactory.createWeakPtr(); }
130
131    Vector<RefPtr<VideoTrackPrivateMediaSourceAVFObjC>> m_videoTracks;
132    Vector<RefPtr<AudioTrackPrivateMediaSourceAVFObjC>> m_audioTracks;
133    Vector<SourceBufferPrivateAVFObjCErrorClient*> m_errorClients;
134
135    WeakPtrFactory<SourceBufferPrivateAVFObjC> m_weakFactory;
136
137    RetainPtr<AVStreamDataParser> m_parser;
138    RetainPtr<AVAsset> m_asset;
139    RetainPtr<AVSampleBufferDisplayLayer> m_displayLayer;
140    std::map<int, RetainPtr<AVSampleBufferAudioRenderer>> m_audioRenderers;
141    RetainPtr<WebAVStreamDataParserListener> m_delegate;
142    RetainPtr<WebAVSampleBufferErrorListener> m_errorListener;
143
144    MediaSourcePrivateAVFObjC* m_mediaSource;
145    SourceBufferPrivateClient* m_client;
146
147    FloatSize m_cachedSize;
148    bool m_parsingSucceeded;
149    int m_enabledVideoTrackID;
150    int m_protectedTrackID;
151};
152
153}
154
155#endif // ENABLE(MEDIA_SOURCE) && USE(AVFOUNDATION)
156
157#endif
158